WO2010041529A1 - Method of manufacturing heat transfer plate - Google Patents

Method of manufacturing heat transfer plate Download PDF

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Publication number
WO2010041529A1
WO2010041529A1 PCT/JP2009/065474 JP2009065474W WO2010041529A1 WO 2010041529 A1 WO2010041529 A1 WO 2010041529A1 JP 2009065474 W JP2009065474 W JP 2009065474W WO 2010041529 A1 WO2010041529 A1 WO 2010041529A1
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WO
WIPO (PCT)
Prior art keywords
metal member
heat medium
medium pipe
groove
heat
Prior art date
Application number
PCT/JP2009/065474
Other languages
French (fr)
Japanese (ja)
Inventor
伸城 瀬尾
堀　久司
慎也 牧田
Original Assignee
日本軽金属株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008259396A external-priority patent/JP5141487B2/en
Priority claimed from JP2008263694A external-priority patent/JP5163419B2/en
Application filed by 日本軽金属株式会社 filed Critical 日本軽金属株式会社
Priority to CN200980138293.7A priority Critical patent/CN102159357B/en
Priority to KR1020117010225A priority patent/KR101249186B1/en
Publication of WO2010041529A1 publication Critical patent/WO2010041529A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D9/00—Devices not associated with refrigerating machinery and not covered by groups F25D1/00 - F25D7/00; Combinations of devices covered by two or more of the groups F25D1/00 - F25D7/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4871—Bases, plates or heatsinks
    • H01L21/4882—Assembly of heatsink parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to a method of manufacturing a heat transfer plate used for, for example, a heat exchanger, a heating device, a cooling device, or the like.
  • FIG. 28 is a view showing a heat transfer plate according to Patent Document 1, in which (a) is a perspective view and (b) is a cross-sectional view.
  • a heat transfer plate 100 according to Patent Document 1 includes a base member 102 having a lid groove 106 having a rectangular cross-sectional view opening on the surface and a concave groove 108 opening on the bottom surface of the lid groove 106, and heat inserted into the concave groove 108.
  • the friction stir welding is performed along the abutting portion.
  • Plasticized regions W 0 and W 0 are formed at the abutting portion between the lid groove 106 and the lid plate 110.
  • the heat transfer plate 100 has gaps 120, 120 formed by the groove 108, the outer peripheral surface of the heat medium pipe 116 and the back surface of the lid plate 110. If the gaps 120, 120 are present inside the heat transfer plate 100, the heat radiated from the heat medium pipe 116 becomes difficult to be transmitted to the cover plate 110, so that the heat exchange efficiency of the heat transfer plate 100 decreases. There was a problem. Therefore, it is preferable that the depth and width of the concave groove 108 be formed to be the same as the outer diameter of the heat medium pipe 116 so that the gaps 120 and 120 become smaller.
  • the depth and width of the groove 108 must be ensured to be larger than the outer diameter of the heat medium pipe 116. That is, when at least a part of the heat medium tube 116 is curved and embedded in the base member 102, the depth and width of the concave groove 108 must be made larger than the outer diameter of the heat medium tube 116. Accordingly, the gaps 120 and 120 are further enlarged. Thereby, there existed a problem that the heat exchange efficiency of the heat exchanger plate 100 fell.
  • an object of the present invention is to provide a method of manufacturing a heat transfer plate that has a high heat exchange efficiency of the heat transfer plate and can be easily manufactured.
  • the first metal member and the second metal member each have a concave groove, and the pair of concave grooves are hollow.
  • An inflow agitation rotating tool that rotates from at least one of the first metal member and the second metal member is inserted and moved along the space, and is formed around the heat medium pipe.
  • An inflow agitation step for introducing a plastic fluidized material fluidized by frictional heat into the part, wherein at least one of the width and the height of the space part is larger than the outer diameter of the heat medium pipe Features set to To.
  • the manufacturing method of the heat exchanger plate which concerns on this invention has the ditch
  • the preparation step the first metal member and the second metal member are overlapped so that a hollow space portion is formed by the concave groove, and a heat medium pipe is inserted into the space portion, and the preparation step
  • the inflow stirring rotary tool inserted from the other one of the first metal member and the second metal member of the formed temporary assembly structure is moved along the space and formed around the heat medium pipe.
  • the heat medium Even if a part of the working tube is curved, the preparation process can be easily performed.
  • the plastic fluidized material is allowed to flow into the gap formed around the heat medium pipe by the inflow stirring step, the gap can be filled, so the heat medium pipe and the surrounding first Heat can be efficiently transferred between the metal member and the second metal member.
  • a heat exchanger plate with high heat exchange efficiency can be manufactured, for example, a heat exchanger plate and a cooling target can be efficiently cooled through cooling water through a heat medium pipe.
  • the closest distance between the tip of the inflow stirring rotating tool and the virtual vertical plane in contact with the heat medium pipe is set to 1 to 3 mm.
  • friction stir welding may be performed intermittently along the abutting portion.
  • the joining step it is preferable to perform the joining step using a rotating tool that is smaller than the rotating tool for inflow stirring.
  • plastic fluidization can be achieved up to a deep portion in the inflow stirring step, and the plasticizing region in the friction stir welding in the joining step can be small, so that the joining operation is facilitated.
  • the method includes a welding process in which welding is performed along a butt formed by butting the first metal member and the second metal member.
  • welding may be performed intermittently along the abutting portion.
  • this manufacturing method it is possible to manufacture a heat transfer plate having high watertightness and airtightness.
  • an inflow stirring process can be performed in the state which fixed the 1st metal member and the 2nd metal member beforehand, the workability
  • work can be omitted by performing the welding process intermittently.
  • the manufacturing method of the heat exchanger plate which concerns on this invention is a heat exchanger plate which has the 1st metal member by which the ditch
  • the second metal member is disposed in the lid groove of the first metal member so that a hollow space portion is formed between the concave grooves, and a heat medium pipe is inserted into the space portion.
  • the second metal member is formed in the lid groove of the first metal member such that a hollow space is formed by the concave groove and the other one of the first metal member and the second metal member.
  • the heat medium Even if a part of the working tube is curved, the preparation process can be easily performed.
  • the plastic fluidized material is allowed to flow into the gap formed around the heat medium pipe by the inflow stirring step, the gap can be filled, so the heat medium pipe and the surrounding first Heat can be efficiently transferred between the metal member and the second metal member.
  • a heat exchanger plate with high heat exchange efficiency can be manufactured, for example, a heat exchanger plate and a cooling target can be efficiently cooled through cooling water through a heat medium pipe.
  • the closest distance between the tip of the rotating tool for agitation and the virtual vertical plane in contact with the heat medium pipe is set to 1 to 3 mm.
  • the inflow stirring step it is preferable to insert the tip of the inflow stirring rotary tool so as to reach the interface between the first metal member and the second metal member. According to this manufacturing method, the plastic fluidized material can surely flow into the gap.
  • the method further includes a joining step of performing friction stir welding along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. Further, in the joining step of the present invention, it is preferable that the friction stir welding is intermittently performed along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. According to this manufacturing method, it is possible to manufacture a heat transfer plate having high watertightness and airtightness.
  • the joining step it is preferable to perform the joining step using a rotating tool that is smaller than the rotating tool for inflow stirring.
  • plastic fluidization can be achieved up to a deep portion in the inflow stirring step, and the plasticizing region in the friction stir welding in the joining step can be small, so that the joining operation is facilitated.
  • the method further includes a welding step of performing welding along a butt portion between a side wall of the lid groove of the first metal member and a side surface of the second metal member.
  • a welding step of performing welding along a butt portion between a side wall of the lid groove of the first metal member and a side surface of the second metal member.
  • this manufacturing method it is possible to manufacture a heat transfer plate having high watertightness and airtightness.
  • operativity of an inflow stirring process is improved. Can do.
  • work can be omitted by performing the welding process intermittently.
  • the inflow stirring step can be performed with the second metal member fixed, and the plasticized region exposed to the heat transfer plate can be reduced.
  • the lid groove is opened on the bottom surface of the top lid groove opened in the first metal member, and after the inflow stirring step, an upper lid groove closing step of arranging an upper lid plate in the upper lid groove; It is preferable that the method further includes an upper lid joining step of performing friction stir welding along the abutting portion between the side wall of the upper lid groove and the side surface of the upper lid plate. According to this manufacturing method, since the friction stir welding is further performed on the second metal member using the upper lid plate, the heat medium pipe can be disposed at a deeper position of the heat transfer plate.
  • a heat transfer plate can be easily manufactured and a heat transfer plate with high heat exchange efficiency can be provided.
  • FIG. 1 It is the perspective view which showed the heat exchanger plate which concerns on 1st embodiment. It is the disassembled perspective view which showed the heat exchanger plate which concerns on 1st embodiment.
  • A is a disassembled sectional view showing the heat transfer plate according to the first embodiment,
  • FIG. It is sectional drawing which showed the heat exchanger plate which concerns on 1st embodiment.
  • the heat transfer plate 1 formed in the present embodiment will be described.
  • the heat transfer plate 1 according to this embodiment includes a thick plate-shaped first metal member 2, a second metal member 3 disposed on the first metal member 2, and A heat medium pipe 4 inserted mainly between the first metal member 2 and the second metal member 3 is mainly provided.
  • the heat medium pipe 4 is curved and formed so as to have a U-shape in plan view.
  • the first metal member 2 and the second metal member 3 are integrally formed by plasticizing regions W1 to W6 generated by friction stirring.
  • the “plasticization region” includes both a state heated by frictional heat of the rotary tool and actually plasticized, and a state where the rotary tool passes and returns to room temperature.
  • Plasticized regions W ⁇ b> 1 and W ⁇ b> 2 are formed on the side surface of the heat transfer plate 1.
  • Plasticized regions W3 and W4 are formed on the surface 3a of the second metal member 3.
  • plasticized regions W5 and W6 are formed on the back surface 2b of the first metal member 2.
  • the first metal member 2 is made of, for example, an aluminum alloy (JIS: A6061).
  • the first metal member 2 plays a role of transferring the heat of the heat medium flowing through the heat medium pipe 4 to the outside or a role of transferring external heat to the heat medium flowing through the heat medium pipe 4.
  • a first groove 5 that accommodates one side (lower half) of the heat medium pipe 4 is formed in the surface 2 a of the first metal member 2.
  • the first concave groove 5 is a portion that accommodates the lower half of the heat medium pipe 4 and has a U shape in plan view, and is formed in a rectangular shape in cross section so that the upper part is open.
  • the first concave groove 5 includes a bottom surface 5c and rising surfaces 5a and 5b that rise vertically from the bottom surface 5c.
  • the second metal member 3 is made of the same aluminum alloy as the first metal member 2 and is formed in substantially the same shape as the first metal member 2. Both end surfaces of the second metal member 3 are formed flush with both end surfaces of the first metal member 2. Further, the side surface 3c of the second metal member 3 is formed flush with the side surface 2c of the first metal member 2, and the side surface 3d of the second metal member 3 is formed flush with the side surface 2d of the first metal member 2. Has been. On the back surface 3 b of the second metal member 3, a U-shape in a plan view is formed, and a second groove 6 is recessed corresponding to the position of the first groove 5.
  • the second concave groove 6 is a portion that accommodates the other side (upper half portion) of the heat medium pipe 4, and has a cross section that opens downward. It is formed in a viewing rectangle.
  • the second concave groove 6 includes a top surface 6c and vertical surfaces 6a and 6b that vertically fall from the top surface 6c.
  • the 1st metal member 2 and the 2nd metal member 3 were made into the aluminum alloy in this embodiment, another material may be sufficient if it is a metal member which can be frictionally stirred.
  • the heat medium pipe 4 is a cylindrical pipe having a U-shape in plan view.
  • the material of the heat medium pipe 4 is not particularly limited, but is made of copper in the present embodiment.
  • the heat medium pipe 4 is a member that circulates a heat medium such as a high-temperature liquid or a high-temperature gas in the hollow portion 4a and transmits heat to the first metal member 2 and the second metal member 3, or the hollow portion 4a.
  • the heat is transferred from the first metal member 2 and the second metal member 3 by circulating a heat medium such as cooling water or cooling gas.
  • the depth of the first groove 5 is formed to be 1/2 of the outer diameter of the heat medium pipe 4.
  • the width of the first concave groove 5 is formed to be 1.1 times the outer diameter of the heat medium pipe 4.
  • the depth of the second concave groove 6 is formed to be 1.1 times the radius of the heat medium pipe 4.
  • the width of the second concave groove 6 is 1.1 times the outer diameter of the heat medium pipe 4. Therefore, when the heat medium pipe 4 and the second metal member 3 are arranged on the first metal member 2, the first groove 5 and the lower end of the heat medium pipe 4 are in contact with each other, and the left and right ends and the upper end of the heat medium pipe 4 are in contact with each other. Are spaced apart from the first concave groove 5 and the second concave groove 6 with a fine gap. In other words, the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 4.
  • first gap P1 the portion formed on the upper right side
  • second gap P2 the portion formed on the lower left side
  • third gap P3 the portion formed on the lower right side
  • fourth gap P4 A member made up of the first metal member 2, the second metal member 3, and the heat medium pipe 4 is referred to as a “temporary assembly U”.
  • the first metal member 2 and the second metal member 3 are abutted to form an abutting portion V.
  • abutting portion V a portion that appears on one side surface of the temporary assembly U is referred to as “butt portion V1”, and a portion that appears on the other side surface is referred to as “butt portion V2”.
  • the plasticizing regions W ⁇ b> 3 and W ⁇ b> 4 are moved along the second groove 6 by the inflow stirring rotary tool 55 (see FIG. 5) inserted from the surface 3 a of the second metal member 3. It was formed when A part of the plasticizing region W3 flows into the first gap P1 formed around the heat medium pipe 4. A part of the plasticized region W4 flows into the second gap P2 formed around the heat medium pipe 4. That is, the plasticized regions W3 and W4 are regions in which a part of the second metal member 3 is plastically flowed and flows into the first gap P1 and the second gap P2, respectively, It is in contact with the medium tube 4.
  • the plasticization regions W5 and W6 are formed when the inflow stirring rotary tool 55 inserted from the back surface 2b of the first metal member 2 is moved along the first concave groove 5.
  • a part of the plasticized region W5 flows into the third gap P3 formed around the heat medium pipe 4.
  • a part of the plasticizing region W6 flows into a fourth gap P4 formed around the heat medium pipe 4. That is, the plasticized regions W5 and W6 are regions in which a part of the first metal member 2 is plastically flowed and flows into the third gap P3 and the fourth gap P4, respectively, It is in contact with the medium tube 4.
  • the manufacturing method of the heat exchanger plate according to the first embodiment forms the first metal member 2 and the second metal member 3 and arranges the heat medium pipe 4 and the second metal member 3 on the first metal member 2.
  • the joining step of moving the joining rotary tool 50 along the abutting portions V1 and V2 to perform friction stir welding, the front surface 3a side of the second metal member 3 and the back surface 2b of the first metal member 2
  • an inflow stirring step of moving the stirring rotary tool 55 to cause the plastic fluid material Q to flow into the first gap portion P1 to the fourth gap portion P4.
  • the preparation step includes a cutting step for forming the first metal member 2 and the second metal member 3, an insertion step for inserting the heat medium pipe 4 into the first concave groove 5 formed in the first metal member 2, A disposing step of disposing the second metal member 3 on the one metal member 2.
  • the first concave groove 5 having a rectangular shape in cross section is formed on the thick plate member by a known cutting process.
  • groove 5 opened upwards is formed.
  • the second concave groove 6 having a rectangular shape in cross section is formed in the plate thickness member by a known cutting process.
  • groove 6 opened below is formed.
  • the 1st metal member 2 and the 2nd metal member 3 were formed by cutting, you may use the extrusion shape material and castings made from aluminum alloy.
  • the heat medium pipe 4 is inserted into the first groove 5 as shown in FIG. At this time, the lower half of the heat medium pipe 4 is in contact with the bottom surface 5c of the first concave groove 5, and is separated from the standing surfaces 5a and 5b of the first concave groove 5 with a fine gap.
  • the upper half of the heat medium pipe 4 is inserted into the second concave groove 6 formed in the second metal member 3,
  • the 2nd metal member 3 is arrange
  • the temporary assembly structure U which consists of the 1st metal member 2, the 2nd metal member 3, and the pipe
  • the heat medium pipe 4 and the compatible surfaces 6a and 6b and the top surface 6c of the second groove 6 formed on the back surface 3b of the second metal member 3 are separated from each other with a fine gap.
  • the first metal member 2 and the second metal member 3 are abutted to form the abutting portions V1 and V2.
  • Friction stir welding is performed using a welding rotary tool 50 (a known rotary tool).
  • the joining rotary tool 50 is made of, for example, tool steel, and includes a cylindrical tool body 51 and a pin 53 that hangs down on a concentric axis from the center of the bottom surface 52 of the tool body 51.
  • the pin 53 is formed in a tapered shape that becomes narrower toward the tip.
  • a plurality of small grooves (not shown) and screw grooves along the radial direction may be formed on the peripheral surface of the pin 53 along the axial direction.
  • the first metal member 2 and the second metal member 3 are constrained by a jig (not shown), and the joining rotary tool 50 that rotates at a high speed is pushed into the abutting portion V1 and moved along the abutting portion V1. .
  • the aluminum alloy material of the surrounding first metal member 2 and second metal member 3 is heated by frictional heat and plastic fluidized by the pin 53 rotating at high speed, and then cooled and integrated.
  • friction stir welding is performed on the abutting portion V1
  • friction stir welding is similarly performed on the abutting portion V2.
  • the temporary assembly structure including the first metal member 2, the heat medium pipe 4, and the second metal member 3.
  • the inflow and stirring rotary tool 55 is moved from the front and back surfaces of U to cause the plastic fluid Q to flow into the first gap P1 to the fourth gap P4.
  • the inflow agitation rotating tool 55 is moved on the surface 3a of the second metal member 3 to allow the plastic fluid material Q to flow into the first gap P1 and the second gap P2.
  • the step of flowing the plastic fluid material Q into the first gap portion P1 is referred to as the first surface side inflow stirring step
  • the step of flowing the plastic fluid material Q into the second gap portion P2 is the first step.
  • Two surface side inflow stirring step Further, the step of flowing the plastic fluid material Q into the third gap P3 is referred to as a first back side inflow stirring step, and the step of flowing the plastic fluid material Q into the fourth gap P4 is referred to as a second back side inflow stirring step. .
  • the plastic fluidized material Q plasticized by friction stirring is introduced.
  • the inflow stirring rotary tool 55 is made of, for example, tool steel and has a shape equivalent to the joining rotary tool 50, and a concentric shaft is formed from the center of the cylindrical tool body 56 and the bottom surface 57 of the tool body 56. And a pin 58 that hangs down.
  • the inflow stirring rotary tool 55 is larger than the joining rotary tool 50.
  • the inflow agitation rotating tool 55 that rotates at a high speed is pushed on the surface 3a of the second metal member 3, and a U-shaped trajectory in plan view is formed along the second concave groove 6 below.
  • the inflow stirring rotary tool 55 is moved.
  • the inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1.
  • the aluminum alloy material of the surrounding second metal member 3 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P1 and contacts the heat medium pipe 4.
  • the left and right ends and the upper end of the heat medium pipe 4 are arranged with a fine gap between the first concave groove 5 and the second concave groove 6.
  • the heat of the plastic fluid material Q is taken away by the heat medium pipe 4, so that the fluidity is lowered. Therefore, the plastic fluid material Q that has flowed into the first gap P1 does not flow into the second gap P2 and the third gap P3, but remains in the first gap P1 to be filled and hardened.
  • the second gap P2 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 4 is rubbed.
  • the plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof will be omitted.
  • the surface side inflow stirring process is complete
  • the front and back surfaces of the temporary assembly U are reversed, and then the first concave groove 5 is formed on the back side 2 b of the first metal member 2.
  • the inflow agitating rotary tool 55 is moved along the flow path, and the plastic fluid material Q plastically fluidized by frictional heat is caused to flow into the third gap portion P3 and the fourth gap portion P4.
  • the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the third gap P3.
  • the inflow agitation rotating tool 55 that rotates at a high speed on the back surface 2b of the first metal member 2 is pushed in, and flows along the first concave groove 5 so as to form a U-shaped trajectory in plan view.
  • the stirring rotary tool 55 is moved.
  • the inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the third gap P3 of the heat medium pipe 4.
  • the aluminum alloy material of the surrounding first metal member 2 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the third gap P3 and contacts the heat medium pipe 4.
  • the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the fourth gap P4.
  • the second back-side inflow stirring process is the same as the first back-side inflow stirring process except that the second back-side inflow stirring process is performed in the fourth gap P4, and thus the description thereof is omitted.
  • the pushing amount and insertion position of the inflow agitation rotating tool 55 are determined based on the shape and size of the first gap portion P1 to the fourth gap portion P4. Set. It is preferable that the inflow and stirring rotary tool 55 is brought close to the heat medium pipe 4 so that the heat medium pipe 4 is not crushed, and the plastic fluid material Q flows into the first gap part P1 to the fourth gap part P4 without any gaps.
  • the tip of the pin 58 of the inflow agitation rotating tool 55 is connected to the top surface 6c of the second groove 6 (in the case of the back side inflow agitation step, the bottom surface 5c of the first groove 5). It is preferable to insert deeply.
  • the closest distance L between the tip of the pin 58 of the rotating tool 55 for agitation and the virtual vertical plane in contact with the heat medium pipe 4 is 1 to 3 mm.
  • the closest distance L is smaller than 1 mm, the inflow stirring rotary tool 55 is too close to the heat medium tube 4 and the heat medium tube 4 may be crushed. If the closest distance L is greater than 3 mm, the plastic fluid material Q may not flow into the first gap P1.
  • the indentation amount (indentation length) of the inflow stirring rotary tool 55 is, for example, the volume of the metal of the second metal member 3 (or the first metal member 2) from which the tool body 56 is pushed away in the first surface side inflow stirring process. Is a length equivalent to the sum of the volume of the plastic fluidized aluminum alloy material filled in the first gap P1 and the volume of burrs generated on both sides in the width direction of the plasticized region W3. Yes.
  • the width and height of the space portion K are formed larger than the outer diameter of the heat medium tube 4, so that even when a part of the heat medium tube 4 is curved, it is described above. An insertion process and an arrangement process can be easily performed.
  • the plastic fluid material Q is caused to flow into the first gap portion P1 to the fourth gap portion P4 formed around the heat medium pipe 4 by the front-side inflow stirring step and the back-side inflow stirring step, so that the gap Since the portion can be filled, the heat exchange efficiency of the heat transfer plate 1 can be increased.
  • the surface side inflow stirring process is performed after a joining process, you may make it perform a joining process after a surface side inflow stirring process.
  • the first metal member 2 and the second metal member 3 are fixed from the width direction and the longitudinal direction using a jig (not shown), the friction stirring in the surface side inflow stirring step can be performed in a stable state. it can.
  • the friction stir welding is performed over the entire length of the abutting portions V1 and V2 in the joining step, but the present invention is not limited to this, and a predetermined amount is provided along the abutting portions V1 and V2. Friction stir welding may be performed intermittently at intervals. According to such a method for manufacturing a heat transfer plate, labor and time required for the joining process can be reduced.
  • both the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 4, but either one may be formed larger.
  • the cross-sectional shape of the heat medium pipe 4 is circular in this embodiment, other shapes may be used.
  • the shape of the heat medium pipe 4 in plan view is U-shaped in the present embodiment, but may be, for example, a linear shape, a meandering shape, or a circular shape.
  • the width and depth dimensions of the first concave groove 5 and the second concave groove 6 described above are merely examples, and do not limit the present invention.
  • the width and depth of the first concave groove 5 and the second concave groove 6 may be appropriately increased accordingly.
  • the heat medium pipe 4 and the second metal member 3 are arranged on the first metal member 2, but the present invention is not limited to this.
  • the heat medium pipe 4 may be inserted into the second concave groove 6 of the second metal member 3 and then disposed so as to cover the first metal member 2 from above the second metal member 3.
  • the joining step may be omitted. That is, in the inflow stirring step, the first metal member 2 and the second metal member 3 can be integrated.
  • the heat transfer plate manufacturing method forms the first metal member 12 and the second metal member 13, and the heat medium pipe on the first metal member 12. 4 and the second metal member 13, a preparatory step, a joining step of moving the joining rotary tool 50 along the abutting portions V 1, V 2 to perform friction stir welding, and a surface 13 a of the second metal member 13,
  • the preparation process includes a cutting process for forming the first metal member 12 and the second metal member 13, an insertion process for inserting the heat medium pipe 4 into the first groove 15 formed in the first metal member 12,
  • positioning process which arrange
  • the first metal member 12 is formed by notching the first concave groove 15 having a U-shaped cross-sectional view in the plate thickness member by a known cutting process.
  • the bottom portion 15 a of the first concave groove 15 is cut out in an arc shape and is formed with the same curvature as the outer peripheral surface of the heat medium pipe 4.
  • the depth of the first groove 15 is formed smaller than the outer diameter of the heat medium pipe 4, and the width of the first groove 15 is formed substantially equal to the outer diameter of the heat medium pipe 4. .
  • the second metal member 13 is formed by notching the second concave groove 16 having a rectangular cross-sectional view in the plate thickness member by a known cutting process.
  • the width of the second concave groove 16 is formed substantially equal to the outer diameter of the heat medium pipe 4.
  • the depth of the second groove 16 is the second groove when the heat medium pipe 4 and the second metal member 13 are arranged on the first metal member 12.
  • the 16 top surfaces 16c and the heat medium pipe 4 are formed so as to be separated from each other with a fine gap.
  • the heat medium pipe 4 is inserted into the first groove 15 as shown in FIG. At this time, the lower half of the heat medium pipe 4 is in surface contact with the bottom 15 a of the first groove 15.
  • the upper end of the heat medium pipe 4 is positioned above the surface 12 a of the first metal member 12.
  • the upper portion of the heat medium pipe 4 is inserted into the second concave groove 16 formed in the second metal member 13, while the second metal member 12 is inserted into the second metal member 12.
  • a metal member 13 is disposed.
  • the heat medium pipe 4 and the compatible surfaces 16 a and 16 b and the top surface 16 c of the second concave groove 16 formed in the second metal member 13 are separated from each other with a fine gap. That is, the width of the space portion K1 formed by the first groove 15 and the second groove 16 is formed substantially equal to the outer diameter of the heat medium pipe 4, and the height H of the space K1 is The outer diameter of the heat medium pipe 4 is larger.
  • the portion formed on the upper left side with respect to the flow direction Y (see FIG. 2) among the space portions formed around the heat medium pipe 4 is defined as the first space portion P1.
  • a portion formed in the upper right is defined as a second gap portion P2.
  • joining process In the joining step, as shown in FIG. 9A, joining is performed along the abutting portions V1 and V2 (see FIG. 8B) which are the abutting portions of the first metal member 12 and the second metal member 13. Friction stir welding is carried out using the rotary tool 50 for use. Thereby, the 1st metal member 12 and the 2nd metal member 13 can be joined.
  • the surface-side inflow stirring step In the surface side inflow stirring step, friction stirring is performed along the second concave groove 16 from the surface 13a of the second metal member 13 as shown in FIGS.
  • the surface-side inflow stirring step is a first surface-side inflow stirring step for causing the plastic fluid material Q to flow into the first gap P1, and a second surface for causing the plastic fluid material Q to flow into the second gap P2. Side inflow stirring step.
  • the inflow agitation rotating tool 55 that rotates at a high speed from the surface 13a of the second metal member 13 is pushed in, and the inflow agitation is formed so as to exhibit a U shape in plan view along the second concave groove 16.
  • the rotary tool 55 is moved.
  • the inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1.
  • the aluminum alloy material of the surrounding first metal member 12 and second metal member 13 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed.
  • the tip of the inflow stirring rotary tool 55 is pushed so as to be positioned below the abutting portion V (V1, V2) between the first metal member 12 and the second metal member 13.
  • the plastic fluidized material Q plastically fluidized surely flows into the first gap P1 and comes into contact with the heat medium pipe 4.
  • the upper end of the heat medium pipe 4 is arranged with a minute gap from the second concave groove 16, but the plastic fluid material Q is in the first gap portion.
  • the heat of the plastic fluidized material Q is taken away by the heat medium pipe 4, so that the fluidity is lowered. Therefore, the plastic fluid material Q does not flow into the second gap P2, but remains in the first gap P1 and is filled and cured.
  • the second gap P2 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 4 is rubbed.
  • the plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof will be omitted.
  • the surface side inflow stirring process is complete
  • the arrangement step described above can be easily performed even when a part of the heat medium pipe 4 is curved. it can. Further, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P1 and the second void portion P2 formed around the heat medium pipe 4 by the surface side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate can be increased.
  • the width of the first concave groove 15 is formed to be approximately equal to the outer diameter of the heat medium pipe 4, but the present invention is not limited to this. You may form larger than the outer diameter of the pipe 4 for work. Moreover, you may form so that the curvature of the bottom part 15a of the 1st ditch
  • the heat transfer plate manufacturing method forms the first metal member 22 and the second metal member 23, and the heat medium pipe 4 and the first metal member 22 on the first metal member 22.
  • the plastic fluidized material Q is obtained by moving the inflow stirring rotary tool 55 along the groove 26 and plastically fluidizing the first gap P1 and the second gap P2 formed around the heat medium pipe 4 by frictional heat. Including a surface-side inflow agitation step.
  • the preparation step includes a cutting step for forming the first metal member 22 and the second metal member 23, an insertion step for inserting the heat medium pipe 4 into the first concave groove 25 formed in the first metal member 22, and a first step
  • positioning process which arrange
  • the first metal member 22 is formed by notching the first concave groove 25 having a semicircular shape in cross section in the plate thickness member by a known cutting process.
  • the radius of the first concave groove 25 is formed to be equal to the radius of the heat medium pipe 4.
  • the second metal member 23 is formed by cutting out the second concave groove 26 having a rectangular shape in cross section in the plate thickness member.
  • the second concave groove 26 is opened downward, and the width of the opening is formed substantially equal to the outer diameter of the heat medium pipe 4.
  • the curvature of the top surface 26 c of the second concave groove 26 is formed so as to be larger than the curvature of the heat medium pipe 4.
  • the lower half of the heat medium pipe 4 is inserted into the first concave groove 25 as shown in FIG.
  • the lower half of the heat medium pipe 4 is in surface contact with the first concave groove 25.
  • the upper half of the heat medium pipe 4 is inserted into the second concave groove 26 formed in the second metal member 23, and the first metal member 22 is inserted.
  • the second metal member 23 is disposed.
  • the height H of the space K2 formed by overlapping the first concave groove 25 and the second concave groove 26 is formed to be larger than the outer diameter of the heat medium pipe 4.
  • the portion formed on the upper left side with respect to the flow direction Y is defined as the first gap P1, and is formed on the upper right side. This portion is defined as a second gap portion P2.
  • the surface-side inflow stirring step is a first surface-side inflow stirring step for causing the plastic fluid material Q to flow into the first gap P1, and a second surface for causing the plastic fluid material Q to flow into the second gap P2. Side inflow stirring step.
  • the rotation tool 55 for inflow agitation that rotates at high speed is pushed from the surface 23a of the second metal member 23 so as to exhibit a U shape in plan view along the second groove 26. Then, the rotating tool 55 for inflow stirring is moved. The inflow stirring rotary tool 55 moves so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1. At this time, the aluminum alloy material of the surrounding second metal member 23 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P1 and contacts the heat medium pipe 4.
  • the plastic fluid material Q plastically fluidized by friction stirring in the second gap P2 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 4. Inflow. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof is omitted.
  • the front-side inflow stirring step it is preferable that the burrs formed on the surface 23a of the second metal member 23 are cut and removed to be smooth.
  • the first concave groove 25 and the second concave groove 26 are formed. Since the height H of the space portion K2 to be formed is larger than the outer diameter of the heat medium pipe 4, even if the heat medium pipe 4 is partially curved, the arrangement step described above Can be easily performed. Further, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P1 and the second void portion P2 formed around the heat medium pipe 4 by the surface side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate can be increased.
  • the method for manufacturing a heat transfer plate according to the fourth embodiment forms the first metal member 32 and the second metal member 33 and arranges the second metal member 33 on the first metal member 32.
  • a preparatory process a joining process of moving the joining rotary tool 50 (see FIG. 5) along the abutting portions V1 and V2 to perform friction stir welding, the surface 33a side of the second metal member 33, and the first metal member
  • the inflow stirring step of moving the inflow stirring rotary tool 55 from the back surface 32b of the base plate 32 and causing the plastic fluid material Q to flow into the first gap portion P1 to the fourth gap portion P4.
  • the preparation step includes a cutting step for forming the first metal member 32 and the second metal member 33, an insertion step for inserting the heat medium pipe 4 into the first concave groove 35 formed in the first metal member 32, and a first step
  • positioning process which arrange
  • the first metal member 32 is formed by cutting out the first concave groove 35 having a rectangular cross-sectional view in the plate thickness member by a known cutting process.
  • the depth of the first groove 35 is 1.1 times the outer diameter of the heat medium pipe 4.
  • the width of the first groove 35 is 1.1 times the outer diameter of the heat medium pipe 4.
  • the heat medium pipe 4 is inserted into the first concave groove 35 of the first metal member 32 as shown in FIG.
  • the second metal member 33 is arranged above the first metal member 32 as shown in FIG.
  • the heat medium pipe 4 is disposed in a space K3 formed by the first concave groove 35 and the bottom surface (lower surface) 33b of the second metal member 33.
  • the lower end of the heat medium pipe 4 is in contact with the bottom surface 35 c of the first groove 35, and the upper end is separated from the bottom surface 33 b of the second metal member 33.
  • the inflow agitation rotating tool 55 In the inflow agitation step, the inflow agitation rotating tool 55 is moved from the front and back surfaces of the temporary assembly U composed of the first metal member 32, the heat medium pipe 4 and the second metal member 33, and the first gap P1- The plastic fluid material Q is caused to flow into the fourth gap P4. Since the inflow stirring process is substantially the same as the inflow stirring process according to the first embodiment, detailed description thereof is omitted.
  • the first groove 32 is provided only in the first metal member 32 without providing the groove in the second metal member 33, the first groove By forming the width and depth of the groove 35 to be larger than the outer diameter of the heat medium pipe 4, it is possible to obtain substantially the same effect as that of the first embodiment. Moreover, since it is not necessary to form the 2nd ditch
  • groove 35 was formed in the cross sectional view rectangle in this embodiment, it is not limited to this, You may form so that a curved surface may be included.
  • the inflow stirring process was performed from the surface and the back surface of the temporary assembly structure U which consists of the 1st metal member 32, the pipe
  • the abutting portion V (V1, V2) which is the abutting portion between the first metal member 32 and the second metal member 33 is also frictionally stirred.
  • the 1st metal member 32 and the 2nd metal member 33 can be joined.
  • gap part P2 can be performed more reliably.
  • the inflow stirring rotary tool 55 used in the inflow stirring process is made larger than the joining rotary tool 50 used in the joining process. You may make it use the rotation tool 55 for stirring. If it does in this way, the rotation tool used at each process can be unified, the exchange time of a rotation tool can be omitted, and construction time can be shortened.
  • a welding process is performed in place of the joining process of the first to fourth embodiments. That is, in the heat transfer plate manufacturing method according to the fifth embodiment, the first metal member 2 and the second metal member 3 are formed and the heat medium pipe is formed on the first metal member 2 as shown in FIG. 4 and the second metal member 3 are prepared, the welding process is performed along the abutting portions V1 and V2, and the inflow agitation from the front surface 3a side of the second metal member 3 and the back surface 2b of the first metal member 2. And an inflow agitation step in which the plastic fluidizing material is caused to flow into the first gap portion to the fourth gap portion by moving the rotary tool for use.
  • a welding process is remove
  • welding is performed along the abutting portions V (V1, V2) appearing on the side surfaces of the temporarily assembled structure (first metal member 2, second metal member 3, and heat medium pipe 4) formed in the preparation process. I do.
  • the type of welding in the welding process is not particularly limited, but it is preferable to perform overlay welding such as MIG welding or TIG welding and cover the butt portions V1 and V2 with the weld metal T.
  • welding may be performed over the entire length of the abutting portions V1 and V2, or may be performed intermittently with a predetermined interval.
  • a groove may be formed along the abutting portions V1 and V2, and the weld metal T may be filled in the groove.
  • the heat transfer plate 201 is disposed in a thick plate-shaped first metal member (base member) 202 and a lid groove 206 of the first metal member 202 as shown in FIGS. It mainly includes a second metal member (lid plate) 210 and a heat medium pipe 216 inserted between the first metal member 202 and the second metal member 210.
  • the heat medium pipe 216 is formed to be curved so as to have a U-shape in plan view.
  • the first metal member 202 and the second metal member 210 are integrally formed by plasticizing regions W21 to W26 generated by friction stir welding.
  • plasticized regions W23 and W24 formed deeper than the plasticized regions W21 and W22 are formed.
  • plasticized regions W25 and W26 are formed on the back surface 204 of the first metal member 202.
  • the first metal member 202 is made of, for example, an aluminum alloy (JIS: A6061) as shown in FIGS.
  • the first metal member 202 has a role of transmitting heat of the heat medium flowing through the heat medium pipe 216 to the outside, or a role of transferring external heat to the heat medium flowing through the heat medium pipe 216.
  • a lid groove 206 is recessed in the surface 203 of the first metal member 202, and a first groove 208 that accommodates one side (lower half) of the heat medium pipe 216 in the bottom surface 206 c of the lid groove 206. Is recessed.
  • the lid groove 206 is a portion where the second metal member 210 covering the heat medium pipe 216 is disposed, and is formed continuously over the longitudinal direction of the first metal member 202.
  • the lid groove 206 has a rectangular shape in sectional view, and includes side walls 206 a and 206 b that rise vertically from the bottom surface 206 c of the lid groove 206.
  • the first concave groove 208 is a portion that accommodates the lower half of the heat medium pipe 216 and has a U-shape in plan view, and is formed in a rectangular shape in cross section so that the top is open.
  • the first concave groove 208 includes a bottom surface 208c and rising surfaces 208a and 208b that rise vertically from the bottom surface 208c.
  • the second metal member 210 is made of the same aluminum alloy as the first metal member 202 and is disposed in the lid groove 206 of the first metal member 202.
  • the second metal member 210 has a front surface (upper surface) 211, a back surface (lower surface) 212, a side surface 213a, and a side surface 213b.
  • both end surfaces of the second metal member 210 are formed to be flush with both end surfaces of the first metal member 202.
  • the back surface 212 of the second metal member 210 has a U shape in plan view, and a second groove 215 is formed corresponding to the first groove 208.
  • the second concave groove 215 is a portion that accommodates the other side (upper half portion) of the heat medium pipe 216, and has a cross section that opens downward. It is formed in a viewing rectangle.
  • the second groove 215 includes a top surface 215c and vertical surfaces 215a and 215b that vertically fall from the top surface 215c.
  • the second metal member 210 is inserted into the lid groove 206 as shown in FIGS. 15 (a) and 15 (b).
  • the side surfaces 213a and 213b of the second metal member 210 are in surface contact with the side walls 206a and 206b of the lid groove 206 or face each other with a minute gap.
  • abutting portion V21 the abutting portion between the side surface 213a and the side wall 206a
  • abutting portion V22 the abutting portion between the side surface 213b and the side wall 206b
  • the heat medium pipe 216 is a cylindrical pipe having a U-shape in plan view as shown in FIG.
  • the material of the heat medium pipe 216 is not particularly limited, but is made of copper in this embodiment.
  • the heat medium pipe 216 is a member that circulates a heat medium such as a high-temperature liquid or a high-temperature gas through the hollow portion 218 to transmit heat to the first metal member 202 and the second metal member 210, or the hollow portion 218.
  • the first metal member 202 and the second metal member 210 can transfer heat by circulating a heat medium such as cooling water or cooling gas.
  • heat generated from the heater may be used as a member for transmitting the heat generated from the heater to the first metal member 202 and the second metal member 210 through the hollow portion 218 of the heat medium pipe 216, for example.
  • the depth of the first groove 208 is formed to be 1 ⁇ 2 of the outer diameter of the heat medium pipe 216. Further, the width of the first groove 208 is formed to be 1.1 times the outer diameter of the heat medium pipe 216.
  • the depth of the second concave groove 215 is formed to be 1.1 times the radius of the heat medium pipe 216. The width of the second concave groove 215 is 1.1 times the outer diameter of the heat medium pipe 216. Therefore, when the heat medium pipe 216 and the second metal member 210 are arranged on the first metal member 202, the first concave groove 208 and the lower end of the heat medium pipe 216 are in contact with each other, and the left and right ends and the upper end of the heat medium pipe 216 are contacted. Are spaced apart from the first concave groove 208 and the second concave groove 215 with a fine gap. In other words, the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 216.
  • first gap P21 the portion formed on the upper right side
  • second gap P22 the portion formed on the lower left side
  • third gap P23 the portion formed on the lower right side
  • the plasticizing regions W ⁇ b> 23 and W ⁇ b> 24 are moved along the second concave groove 215 by the inflow stirring rotating tool 55 (see FIG. 17) inserted from the surface 211 of the second metal member 210. It was formed when A part of the plasticizing region W23 flows into the first gap P21 formed around the heat medium pipe 216. Further, a part of the plasticizing region W24 flows into the second gap P22 formed around the heat medium pipe 216. That is, in the plasticized regions W23 and W24, a part of the second metal member 210 is plastically flowed, flows into the first gap P21 and the second gap P22, and is in contact with the heat medium pipe 216. .
  • the plasticizing regions W25 and W26 are formed when the inflow stirring rotary tool 55 inserted from the back surface 204 of the first metal member 202 is moved along the first concave groove 208. A part of the plasticizing region W25 flows into a third gap P23 formed around the heat medium pipe 216. A part of the plasticizing region W26 flows into a fourth gap P24 formed around the heat medium pipe 216. That is, in the plasticized regions W25 and W26, a part of the first metal member 202 is plastically flowed and is in contact with the heat medium pipe 216.
  • the first metal member 202 and the second metal member 210 are formed, and the heat medium pipe 216 and the second metal member 210 are disposed on the first metal member 202.
  • the joining step of moving the joining rotary tool 50 along the abutting portions V21 and V22 to perform friction stir welding, the front surface 211 side of the second metal member 210 and the back surface 204 of the first metal member 202
  • the preparation step includes a cutting step for forming the first metal member 202 and the second metal member 210, an insertion step for inserting the heat medium pipe 216 into the first concave groove 208 formed in the first metal member 202, and a lid.
  • a lid groove closing step of disposing the second metal member 210 in the groove 206 is included.
  • the lid groove 206 is formed in the thick plate member by a known cutting process.
  • groove 208 which exhibits a cross sectional view rectangle is formed in the bottom face 206c of the cover groove
  • the first metal member 202 including the cover groove 206 and the first concave groove 208 opened in the bottom surface 206c of the cover groove 206 is formed.
  • the second concave groove 215 having a rectangular shape in cross section is formed on the back surface of the plate thickness member by a known cutting process.
  • the first metal member 202 and the second metal member 210 are formed by cutting.
  • an extruded shape or cast product made of aluminum alloy may be used.
  • the heat medium pipe 216 is inserted into the first groove 208 as shown in FIG. At this time, the lower half portion of the heat medium pipe 216 is in contact with the bottom surface 208c of the first concave groove 208, and is separated from the standing surfaces 208a and 208b of the first concave groove 208 with a fine gap.
  • the first metal member is inserted while the upper half of the heat medium pipe 216 is inserted into the second concave groove 215 formed in the second metal member 210 as shown in FIG.
  • the second metal member 210 is disposed in the lid groove 206 of 202.
  • the heat medium pipe 216 and the compatible surfaces 215a and 215b and the top surface 215c of the second concave groove 215 formed on the back surface 212 of the second metal member 210 are separated from each other with a fine gap.
  • the surface 211 of the second metal member 210 is flush with the surface 203 of the first metal member 202.
  • the abutting portions V21 and V22 are formed by the side walls 206a and 206b of the lid groove 206 and the side surfaces 213a and 213b of the second metal member 210.
  • Friction stir welding is performed along the abutting portions V21 and V22. Friction stir welding is performed using a welding rotary tool 50 (known rotary tool) similar to that of the first embodiment.
  • the rotating tool 50 that rotates at high speed is pushed into each of the abutting portions V21 and V22 while the first metal member 202 and the second metal member 210 are restrained by a jig (not shown), and the abutting portions V21 and V22 are pressed. Move along.
  • the aluminum alloy material of the surrounding first metal member 202 and second metal member 210 is heated by frictional heat and plastic fluidized by the pin 53 that rotates at high speed, and then cooled to cool the first metal member 202 and the second metal member. Integrate with 210.
  • the inflow agitation rotating tool 55 In the inflow agitation step, the inflow agitation rotating tool 55 is moved from the front surface and the back surface of the temporary assembly structure including the first metal member 202, the heat medium pipe 216, and the second metal member 210, and the first gap portion P21 to the first space P21.
  • the plastic fluidizing material is caused to flow into the four gaps P24. That is, in the inflow agitation step, the inflow agitation rotating tool 55 is moved on the surface 211 of the second metal member 210 to cause the plastic fluid material Q to flow into the first gap P21 and the second gap P22.
  • a back side inflow agitation step in which the inflow agitation rotating tool 55 is moved on the back surface 204 of the first metal member 202 to cause the plastic fluid material Q to flow into the third gap part P23 and the fourth gap part P24.
  • the same inflow stirring rotating tool 55 as in the first embodiment is used.
  • the step of flowing the plastic fluid material Q into the first gap portion P21 is referred to as the first surface side inflow stirring step
  • the step of flowing the plastic fluid material Q into the second gap portion P22 is the first step.
  • Two surface side inflow stirring step Further, the step of flowing the plastic fluid material Q into the third gap P23 is referred to as a first back side inflow stirring step, and the step of flowing the plastic fluid material Q into the fourth gap P24 is referred to as a second back side inflow stirring step. .
  • the plastic fluidized material plastically fluidized by friction stirring in the first gap P21 formed on the upper left side with respect to the flow direction Y of the heat medium pipe 216 (see FIG. 14). Let Q flow in.
  • the inflow agitation rotating tool 55 that rotates at a high speed is pushed on the surface 211 of the second metal member 210, and a U-shaped trajectory in plan view is formed along the second concave groove 215 below.
  • the inflow stirring rotary tool 55 is moved.
  • the inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the first gap P21.
  • the aluminum alloy material of the surrounding second metal member 210 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P21 and contacts the heat medium pipe 216.
  • the left and right ends and the upper end of the heat medium pipe 216 are arranged with a fine gap from the first concave groove 208 and the second concave groove 215.
  • the heat of the plastic fluid material Q is taken away by the heat medium pipe 216, so that the fluidity is lowered. Therefore, the plastic fluid material Q that has flowed into the first gap P21 does not flow into the second gap P22 and the third gap P23, but remains in the first gap P21 to be filled and hardened.
  • the second gap P22 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 216 is rubbed.
  • the plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that it is performed in the second gap P22, description thereof is omitted.
  • the back side inflow stirring step is performed after the front and back of the first metal member 202 are reversed. That is, in the back side inflow agitation step, the inflow agitation rotating tool 55 is moved along the first concave groove 208 on the back surface 204 of the first metal member 202 to cause frictional heat in the third gap part P23 and the fourth gap part P24.
  • the plastic fluidized material that has been plastic fluidized by the flow is introduced.
  • the back-side inflow agitation step includes a first back-side inflow agitation step for causing the plastic fluid material to flow into the third gap P23, and a second back-side inflow for causing the plastic fluid material to flow into the fourth gap P24.
  • a stirring step includes a stirring step.
  • the plastic fluid material Q plastically fluidized by friction agitation is caused to flow into the third gap P23.
  • the inflow agitation rotating tool 55 that rotates at high speed on the back surface 204 of the first metal member 202 is pushed in, and flows in a U-shaped path along the first concave groove 208.
  • the stirring rotary tool 55 is moved.
  • the inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the third gap P23 of the heat medium pipe 216.
  • the aluminum alloy material of the surrounding first metal member 202 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow and stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the third gap P23 and contacts the heat medium pipe 216.
  • the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the fourth gap P24.
  • the second back-side inflow stirring process is the same as the first back-side inflow stirring process except that the second back-side inflow stirring process is performed in the fourth gap portion P24, and thus the description thereof is omitted.
  • the pushing amount and insertion position of the inflow agitation rotating tool 55 are determined based on the shape and size of the first gap portion P21 to the fourth gap portion P24. Set. It is preferable that the inflow stirring rotary tool 55 is brought close to the heat medium pipe 216 so that the heat medium pipe 216 is not crushed, and the plastic fluid material Q flows into the first gap portion P21 to the fourth gap portion P24 without gaps.
  • the tip of the pin 58 of the inflow stirring tool 55 is deeper than the top surface 215 c of the second concave groove 215.
  • the closest distance L between the tip of the pin 58 of the inflow stirring rotary tool 55 and the virtual vertical plane in contact with the heat medium pipe 216 is 1 to 3 mm.
  • the plastic fluidized material can surely flow into the first gap P21 to the extent that the heat medium pipe 216 is not crushed. If the closest distance L is less than 1 mm, the inflow stirring rotary tool 55 may be too close to the heat medium pipe 216 and the heat medium pipe 216 may be crushed. If the closest distance L is greater than 3 mm, the plastic fluid material may not flow into the first gap P21.
  • the indentation amount (indentation length) of the inflow agitation rotating tool 55 is such that, for example, in the first surface side inflow agitation step, the metal volume of the second metal member 210 to which the tool body 56 is pushed away is the first gap P21.
  • the length is equal to the sum of the volume of the plastic fluidized aluminum alloy material to be filled and the volume of burrs generated on both sides in the width direction of the plasticized region W23.
  • the space portion including the first concave groove 208 formed in the first metal member 202 and the second concave groove 215 formed in the back surface 212 of the second metal member 210.
  • K since the width and height of the space portion K are formed larger than the outer diameter of the heat medium pipe 216, even if a part of the heat medium pipe 216 is curved, The lid groove closing step can be easily performed.
  • the surface In the side inflow stirring step friction stirring can be performed in a state where the second metal member 210 is securely fixed. Therefore, friction stir welding in which a large pushing force is applied using the inflow stirring rotary tool 55 can be performed in a stable state.
  • the inflow stirring step is performed after the joining step, but the joining step may be performed after the inflow stirring step.
  • the second metal member 210 is fixed from the longitudinal direction using a jig (not shown)
  • the width direction of the second metal member 210 is fixed by the first metal member 202. Friction stirring in the stirring step can be performed in a state where the second metal member 210 is securely fixed.
  • the friction stir welding is performed over the entire length of the abutting portions V21 and V22 in the joining step, but the present invention is not limited to this, and a predetermined amount is provided along the abutting portions V21 and V22.
  • the first metal member 202 may be temporarily attached to the first metal member 202 by intermittently performing friction stir welding at intervals. According to such a method for manufacturing a heat transfer plate, labor and time required for the joining process can be reduced.
  • a welding process may be performed instead of the joining process.
  • welding may be continuously performed on the abutting portions V1 and V2, or may be performed intermittently.
  • the manufacturing method of the heat transfer plate according to the seventh embodiment is that the back side inflow agitation step is not performed, and the plasticized region formed in the joining step overlaps with the plasticization region formed in the surface side inflow agitation step. This is different from the sixth embodiment.
  • the heat medium pipe 216 has a U-shape in plan view as in the first embodiment.
  • the heat transfer plate manufacturing method according to the seventh embodiment forms a first metal member 202 and a second metal member 210, and a heat medium pipe is formed on the first metal member 202.
  • 216 and the second metal member 210 are prepared, a joining step of moving the joining rotary tool 50 along the abutting portions V21 and V22 to perform friction stir welding, and a surface 211 of the second metal member 210,
  • the preparation step includes a cutting step for forming the first metal member 202 and the second metal member 210, an insertion step for inserting the heat medium pipe 216 into the first concave groove 238 formed in the first metal member 202, and a lid.
  • a lid groove closing step of disposing the second metal member 210 in the groove 206 is included.
  • a lid groove 206 is formed in the plate thickness member by a known cutting process. Then, a first groove 238 is formed in the bottom surface 206c of the lid groove 206 by cutting so as to open upward and exhibit a U-shape in cross section.
  • the bottom portion 237 of the first concave groove 238 is formed in an arc shape and has a curvature equivalent to that of the heat medium pipe 216.
  • the depth of the first concave groove 238 is formed smaller than the outer diameter of the heat medium pipe 216, and the width of the first concave groove 238 is formed substantially equal to the outer diameter of the heat medium pipe 216.
  • the second metal member 210 is formed by notching the second concave groove 245 having a rectangular cross-sectional view on the back surface of the plate thickness member by a known cutting process.
  • the width of the second concave groove 245 is formed substantially equal to the outer diameter of the heat medium pipe 216.
  • the depth of the second concave groove 245 is such that when the heat medium pipe 216 and the second metal member 210 are inserted into the first metal member 202, the second concave groove 245 is formed.
  • the top surface 245c of the 245 and the heat medium pipe 216 are formed so as to be separated with a fine gap.
  • the heat medium pipe 216 is inserted into the first groove 238 as shown in FIG. At this time, the lower half portion of the heat medium pipe 216 is in surface contact with the bottom portion 237 of the first groove 238. Note that the upper end of the heat medium pipe 216 is positioned above the bottom surface 206 c of the lid groove 206.
  • the upper part of the heat medium pipe 216 is inserted into the second concave groove 245 formed in the second metal member 210, while the first metal member 202 is The second metal member 210 is disposed in the lid groove 206.
  • the heat medium pipe 216 and the compatible surfaces 245a and 245b and the top surface 245c of the second concave groove 245 formed on the back surface 212 of the second metal member 210 are separated from each other with a fine gap.
  • the width of the space portion K1 formed by the first groove 238 and the second groove 245 is formed substantially equal to the outer diameter of the heat medium pipe 216, and the height H of the space K1 is The outer diameter of the heat medium pipe 216 is larger. Further, the surface 211 of the second metal member 210 is flush with the surface 203 of the first metal member 202.
  • the portion formed on the upper left side with respect to the flow direction Y (see FIG. 14) among the space portions formed around the heat medium pipe 216 is referred to as a first space portion P21.
  • a portion formed at the upper right is defined as a second gap P22.
  • the surface-side inflow stirring step includes a first surface-side inflow agitation step for causing the plastic fluid material Q to flow into the first gap P21, and a second surface for causing the plastic fluid material Q to flow into the second gap P22. Side inflow stirring step.
  • the inflow agitation rotating tool 55 that rotates at a high speed from the surface 211 of the second metal member 210 is pushed in, and the inflow agitation is formed so as to exhibit a U shape in plan view along the second concave groove 245.
  • the rotary tool 55 is moved.
  • a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 is overlapped with the first gap P21, and the plasticized region W23 formed by friction stirring is the plasticized regions W21, W22. Move to include.
  • the inflow agitation rotating tool 55 moves in the surface side inflow agitation step on the plasticization regions W21 and W22 formed in the joining step, and the plasticization regions W21 and W22 are re-applied. Stir.
  • the aluminum alloy material of the surrounding second metal member 210 and the first metal member 202 is heated by frictional heat and plastically fluidized by the pin 58 rotating at a high speed.
  • the plastic fluidized material Q plasticized is the first gap. It surely flows into the part P21 and comes into contact with the heat medium pipe 216.
  • the upper end of the heat medium pipe 216 is arranged with a fine gap from the second concave groove 245, but the plastic fluid material Q is the first gap portion.
  • the heat of the plastic fluidized material Q is taken away by the heat medium pipe 216, so that the fluidity is lowered. Therefore, the plastic fluid material Q does not flow into the second gap P22, but remains in the first gap P21, and is filled and cured.
  • the second gap P22 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 216 is rubbed.
  • the plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that it is performed in the second gap P22, description thereof is omitted.
  • the space portion including the first groove 238 formed on the first metal member 202 and the second groove 245 formed on the back surface 212 of the second metal member 210.
  • K1 since the height of the space K1 is formed larger than the outer diameter of the heat medium pipe 216, the lid groove closing step can be easily performed even when a part of the heat medium pipe 216 is curved. It can be carried out.
  • the void portion can be filled by flowing the plastic fluid material Q into the first void portion P21 and the second void portion P22 formed around the heat medium pipe 216 by the surface-side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate 231 can be increased.
  • the inflow stirring process from the back surface 204 of the first metal member 202 is performed (back-side inflow stirring). Step) It can be omitted.
  • the plasticized region exposed to the surface of the heat transfer plate 231 is reduced. Can be small.
  • the width of the first concave groove 238 is formed substantially equal to the outer diameter of the heat medium pipe 216, but the present invention is not limited to this, and the width of the first concave groove 238 is equal to the heat medium.
  • the curvature of the bottom portion 237 may be formed to be smaller than the curvature of the heat medium pipe 216.
  • the manufacturing method of the heat transfer plate according to the eighth embodiment forms the first metal member 202 and the second metal member 260, and the heat medium pipe 216 and the first metal member 202 on the first metal member 202.
  • the inflow stirring rotary tool 55 is moved along the groove 265, and the plastic fluidized material plastically fluidized by frictional heat in the first gap P21 and the second gap P22 formed around the heat medium pipe 216 is obtained. It includes a front-side inflow stirring step for inflow.
  • the preparation process includes a cutting process for forming the first metal member 202 and the second metal member 260, an insertion process for inserting the heat medium pipe 216 into the first concave groove 258 formed in the first metal member 202, and a lid.
  • a lid groove closing step of disposing the second metal member 260 in the groove 206 is included.
  • the first concave groove 258 is formed on the bottom surface 206c of the lid groove 206 formed in the first metal member 202.
  • the first concave groove 258 has a U shape in a plan view and has a semicircular shape in a sectional view.
  • the radius of the first concave groove 258 is formed to be equal to the radius of the heat medium pipe 216.
  • the second concave groove 265 is formed on the back surface 262 of the second metal member 260.
  • the second concave groove 265 is opened downward, and the width of the opening is formed substantially equal to the outer diameter of the heat medium pipe 216.
  • the curvature of the top surface 265c of the second concave groove 265 is formed to be larger than the curvature of the heat medium pipe 216.
  • the lower half of the heat medium pipe 216 is inserted into the first concave groove 258 as shown in FIG.
  • the lower half of the heat medium pipe 216 is in surface contact with the first concave groove 258.
  • the upper half of the heat medium pipe 216 is inserted into the second concave groove 265 formed in the second metal member 260, and the lid groove 206 is inserted into the lid groove 206.
  • the second metal member 260 is inserted.
  • the height H of the space K2 formed by overlapping the first concave groove 258 and the second concave groove 265 is formed to be larger than the outer diameter of the heat medium pipe 216.
  • the portion formed on the upper left side with respect to the flow direction Y (see FIG. 14) is defined as the first gap P21, and is formed on the upper right side. This portion is referred to as a second gap P22.
  • the surface 261 of the second metal member 260 is flush with the surface 203 of the first metal member 202.
  • the surface-side inflow agitation step includes a first surface-side inflow agitation step for causing the plastic fluid material Q to flow into the first gap P21, and a second surface for causing the plastic fluid material Q to flow into the second gap P22. Side inflow stirring step.
  • the inflow agitation rotating tool 55 that rotates at a high speed is pushed from the surface 261 of the second metal member 260 so as to exhibit a U shape in plan view along the second concave groove 265. Then, the rotating tool 55 for inflow stirring is moved. The inflow stirring rotary tool 55 moves so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the first gap P21. At this time, the aluminum alloy material of the surrounding second metal member 260 is heated by frictional heat and plastically fluidized by the pin 58 rotating at a high speed. Since the inflow and stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P21 and contacts the heat medium pipe 216.
  • the plastic fluid material Q plastically fluidized by friction stirring in the second gap P22 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 216 (see FIG. 14).
  • the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P22, and thus the description thereof is omitted.
  • the burrs formed on the surface 261 of the second metal member 260 are removed by cutting and smoothing.
  • the lid groove closing step is performed even when a part of the heat medium pipe 216 is curved. Can be easily performed.
  • the void portion can be filled by flowing the plastic fluid material Q into the first void portion P21 and the second void portion P22 formed around the heat medium pipe 216 by the surface-side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate 251 can be increased.
  • the manufacturing method of the heat transfer plate according to the ninth embodiment includes a structure substantially equivalent to the heat transfer plate 201 according to the sixth embodiment described above, and further includes an upper lid plate 270 on the surface side of the second metal member 210. It is different from the sixth embodiment in that it is disposed and subjected to friction stir welding.
  • the structure equivalent to the above-described heat transfer plate 201 is also referred to as a lower lid portion M.
  • symbol is attached
  • the heat transfer plate 281 includes heat that is inserted into the first metal member 282, the first groove 208, and the second groove 215.
  • the medium pipe 216, the second metal member 210, and the upper lid plate 270 disposed on the upper side of the second metal member 210 are integrated in the plasticized regions W21 to W28 by friction stir welding.
  • the first metal member 282 is made of, for example, an aluminum alloy, and is continuous with the upper lid groove 276 formed in the longitudinal direction on the surface 283 of the first metal member 282 and the bottom surface 276c of the upper lid groove 276 in the longitudinal direction.
  • the upper lid groove 276 has a rectangular shape in sectional view, and includes side walls 276a and 276b that rise vertically from the bottom surface 276c.
  • the width of the upper lid groove 276 is formed larger than the width of the lid groove 206.
  • the bottom surface 276c of the upper lid groove 276 is chamfered after the plasticized regions W23 and W24 are generated, and is flush with the surfaces (upper surfaces) of the plasticized regions W23 and W24.
  • the heat medium pipe 216 is inserted into the space K formed by the first concave groove 208 and the second concave groove 215. Further, friction stir is applied from the front surface 211 of the second metal member 210 and the back surface 284 of the first metal member 202, so that the first gap portion P 21 to the fourth gap portion P 24 formed around the heat medium pipe 216. A plastic fluid is flowing in. That is, the lower lid portion M formed inside the first metal member 282 has a configuration substantially equivalent to that of the heat transfer plate 201 according to the sixth embodiment.
  • the upper lid plate 270 is made of, for example, an aluminum alloy and has a rectangular cross section substantially the same as the cross section of the upper lid groove 276.
  • the upper lid plate 270 is a member disposed in the upper lid groove 276 and has a front surface 271, a back surface 272, and a side surface 273 a and a side surface 273 b formed perpendicularly from the back surface 272. That is, the side surfaces 273a and 273b of the upper lid plate 270 are in surface contact with the side walls 276a and 276b of the upper lid groove 276 or are arranged with a fine gap.
  • abutting portion V27 the abutting portion between the side surface 273a and the side wall 276a
  • abutting portion V28 the abutting portion between the side surface 273b and the side wall 276b.
  • the abutting portions V27 and V28 are integrated in the plasticized regions W27 and W28 by friction stir welding.
  • the manufacturing method of the heat transfer plate 281 is an upper cover groove closing step of inserting the upper cover plate 270 after forming the lower cover portion M at the lower part of the first metal member 282 by a manufacturing method equivalent to the heat transfer plate 201, It includes an upper lid joining step in which friction stir welding is performed along the abutting portions V27 and V28.
  • the upper lid plate 270 is disposed in the upper lid groove 276.
  • the bottom surface 276c of the upper cover groove 276, the second metal member 210, and the surfaces of the plasticized regions W21 to W24 are uneven due to the above-described joining step and surface side inflow stirring step. It is preferable to make it.
  • the upper cover plate 270 is further disposed above the lower cover portion M, and the heat medium pipe 216 is disposed at a deeper position by performing friction stir welding. Can do.
  • the method for manufacturing a heat transfer plate according to the tenth embodiment is different from the sixth embodiment in that a concave groove is not formed in the first metal member.
  • the heat medium pipe 216 has a U-shape in plan view as in the sixth embodiment.
  • the manufacturing method of the heat transfer plate according to the tenth embodiment forms the first metal member 332 and the second metal member 333, and the second metal member 333 includes the first metal member.
  • a preparatory step of arranging the 332 a joining step of moving the joining rotary tool 50 (see FIG. 17) along the abutting portions V21 and V22 to perform friction stir welding, a surface 337 side of the second metal member 333 and the first side
  • An inflow agitation step in which the inflow agitation rotating tool 55 is moved from the back surface 340 of the one metal member 332 and the plastic fluid material Q is introduced into the first gap part P21 to the fourth gap part P24.
  • a cutting process In the preparation process, a cutting process, an insertion process, and a lid groove closing process are performed.
  • the first metal member 332 is formed by notching the cover groove 334 in the plate thickness member by a known cutting process.
  • the lid groove 334 is formed substantially the same as the cross-sectional shape of the second metal member 333 so that the second metal member 333 is inserted.
  • the second metal member 333 is formed by cutting out the second concave groove 335 which is rectangular in a sectional view and opens toward the first metal member 332 in the plate thickness member.
  • the depth and width of the second concave groove 335 are formed larger than the heat medium pipe 216.
  • the heat medium pipe 216 is inserted into the second concave groove 335 of the second metal member 333 as shown in FIG.
  • the first metal member 332 is inserted from above the second metal member 333, and the first metal member 332 and the second metal member 333 are inserted. And the front and back of the temporary assembly structure composed of the heat medium pipe 216 are reversed.
  • a heat medium pipe 216 is inserted into a space K formed by the second concave groove 335 and the bottom surface 334c of the lid groove 334.
  • the lower end of the heat medium pipe 216 is in contact with the bottom surface 334c of the lid groove 334, and the upper end is separated from the top surface 335c of the second concave groove 335.
  • the abutting portion V21 is formed by the side wall 334a of the lid groove 334 of the first metal member 332 and the side surface 333a of the second metal member 333. Further, the abutting portion V22 is formed by the side wall 334b of the lid groove 334 of the first metal member 332 and the side surface 333b of the second metal member 333.
  • Inflow stirring process In the inflow stirring step, inflow from the front surface (second metal member 333 side) and back surface (first metal member 332 side) of the temporary assembly structure including the first metal member 332, the heat medium pipe 216, and the second metal member 333.
  • the stirring fluid tool 55 is moved to cause the plastic fluid Q to flow into the first gap P21 to the fourth gap P24. Since the inflow stirring process is substantially the same as the inflow stirring process according to the sixth embodiment, detailed description thereof is omitted.
  • the heat transfer plate 345 is formed by performing the inflow stirring step.
  • the second concave groove 335 is provided.
  • the heat transfer plate 345 is formed as described above, but the present invention is not limited to this.
  • the second metal member 333 may be disposed while the heat medium pipe 216 is inserted into the second metal member 333.
  • the first metal member 402 has the first groove 408, but the second metal member 410 has the second groove. This is different from the tenth embodiment in that no is formed.
  • the first metal member 402 includes a cover groove 406 and a first groove 408 on the bottom surface 406c of the cover groove 406.
  • the first concave groove 408 has a U shape in a sectional view and is formed so that the lower half of the heat medium pipe 216 is in surface contact. Further, the height of the first concave groove 408 is formed larger than the outer diameter of the heat medium pipe 216.
  • the second metal member 410 is a plate-like member and is disposed in the lid groove 406 of the first metal member 402.
  • the first metal member 402 and the second metal member 410 are friction stir welded at the abutting portions V21 and V22, respectively.
  • the plastic fluidized material is introduced into the first gap P1 and the second gap P2 formed around the heat medium pipe 216 by the inflow stirring process. That is, the rotation tool 55 for agitation and agitation is inserted from the surface of the second metal member 410 to plastically fluidize the first metal member 402 and the second metal member 410, and the first gap portion P1 and the second gap portion P2. A plastic fluidized material is allowed to flow into. Plasticized regions W ⁇ b> 23 and W ⁇ b> 24 are formed on the surface of the second metal member 410. Thereby, the space
  • the tip of the inflow stirring rotary tool 55 is set to reach the interface between the first metal member 402 and the second metal member 410 during the inflow stirring step.
  • the manufacturing method of the heat transfer plate according to the twelfth embodiment includes a structure substantially equivalent to the heat transfer plate 345 (see FIG. 25) according to the tenth embodiment, and further on the surface 337 side of the second metal member 333. It differs from the tenth embodiment in that the upper lid plate 370 is disposed and subjected to friction stir welding.
  • the heat transfer plate 350 includes a first metal member 332, a second metal member 333, a heat medium pipe 216 inserted into the second concave groove 335 of the second metal member 333, And an upper cover plate 370 disposed on the upper side of the bimetallic member 333, and integrated by friction stir welding in the plasticized regions W21 to W28.
  • the first metal member 332 further includes an upper lid groove 376 above the lid groove 334 that accommodates the second metal member 333.
  • an upper lid plate 370 having a cross-sectional shape substantially equivalent to that of the upper lid groove 376 is disposed.
  • the abutting portions V27 and V28 of the side wall of the upper lid groove 376 and the side surface of the upper lid plate 370 are integrated by friction stir welding.
  • the heat transfer plate 350 according to the twelfth embodiment is substantially the same as the ninth embodiment except that the configuration of the heat transfer plate 345 according to the tenth embodiment is included, and thus detailed description thereof is omitted. .
  • the heat medium pipe 216 can be disposed at a deeper position.

Abstract

A method of manufacturing a heat transfer plate which has high heat transfer efficiency and can be easily manufactured.  A method of manufacturing a heat transfer plate is provided with a preparation step for superposing a first metallic member (2) and a second metallic member (3) on each other to form a hollow space (K) between a first groove (5) in the first metallic member (2) and a second groove (6) in the second metallic member (3) and inserting a heat medium pipe (4) into the space (K), and the method is also provided with an inflow stirring step for inserting an inflow stirring rotating tool (55) from the first metallic member (2) and the second metallic member (3) of the temporarily assembled structure, which is formed in the preparation step, and moving the tool along the space (K) to cause a plastic fluid material (Q) to flow into gaps (P1-P4) formed around the heat medium pipe (4), with the plastic fluid material (Q) having been plasticized and fluidized by frictional heat.  At least one of the width or the height of the space (K) is set to be greater than the outer diameter of the heat medium pipe (4).

Description

伝熱板の製造方法Manufacturing method of heat transfer plate
　本発明は、例えば熱交換器や加熱機器あるいは冷却機器などに用いられる伝熱板の製造方法に関する。 The present invention relates to a method of manufacturing a heat transfer plate used for, for example, a heat exchanger, a heating device, a cooling device, or the like.
　熱交換、加熱あるいは冷却すべき対象物に接触し又は近接して配置される伝熱板は、その本体であるベース部材に例えば高温液や冷却水などの熱媒体を循環させる熱媒体用管を挿通させて形成されている。
　かかる伝熱板の製造方法としては、例えば、特許文献１に記載された方法が知られている。図２８は、特許文献１に係る伝熱板を示した図であって、（ａ）は、斜視図、（ｂ）は断面図である。特許文献１に係る伝熱板１００は、表面に開口する断面視矩形の蓋溝１０６と蓋溝１０６の底面に開口する凹溝１０８とを有するベース部材１０２と、凹溝１０８に挿入される熱媒体用管１１６と、蓋溝１０６に嵌合される蓋板１１０と、を備え、蓋溝１０６における側壁１０５と蓋板１１０の側面１１３、及び、側壁１０５と蓋板１１０の側面１１４とのそれぞれの突合部に沿って摩擦攪拌接合を施して形成されている。蓋溝１０６と蓋板１１０の突合部には、塑性化領域Ｗ０，Ｗ０が形成されている。 The heat transfer plate placed in contact with or close to the object to be heat exchanged, heated or cooled is provided with a heat medium pipe for circulating a heat medium such as high-temperature liquid or cooling water through the base member as the main body. It is formed by insertion.
As a method for manufacturing such a heat transfer plate, for example, a method described in Patent Document 1 is known. FIG. 28 is a view showing a heat transfer plate according to Patent Document 1, in which (a) is a perspective view and (b) is a cross-sectional view. A heat transfer plate 100 according to Patent Document 1 includes a base member 102 having a lid groove 106 having a rectangular cross-sectional view opening on the surface and a concave groove 108 opening on the bottom surface of the lid groove 106, and heat inserted into the concave groove 108. A medium tube 116 and a lid plate 110 fitted in the lid groove 106, and each of the side wall 105 and the side surface 113 of the lid plate 110 and the side wall 105 and the side surface 114 of the lid plate 110 in the lid groove 106. The friction stir welding is performed along the abutting portion. Plasticized regions W 0 and W 0 are formed at the abutting portion between the lid groove 106 and the lid plate 110.
特開２００４－３１４１１５号公報JP 2004-314115 A
　図２８の（ｂ）に示すように、伝熱板１００には、凹溝１０８と熱媒体用管１１６の外周面と蓋板１１０の裏面とによって空隙部１２０，１２０が形成されているが、伝熱板１００の内部に空隙部１２０，１２０が存在していると、熱媒体用管１１６から放熱された熱が蓋板１１０に伝わりにくくなるため、伝熱板１００の熱交換効率が低下するという問題があった。したがって、凹溝１０８の深さや幅を熱媒体用管１１６の外径と同一に形成して、空隙部１２０，１２０が小さくなるように形成することが好ましい。 As shown in FIG. 28 (b), the heat transfer plate 100 has gaps 120, 120 formed by the groove 108, the outer peripheral surface of the heat medium pipe 116 and the back surface of the lid plate 110. If the gaps 120, 120 are present inside the heat transfer plate 100, the heat radiated from the heat medium pipe 116 becomes difficult to be transmitted to the cover plate 110, so that the heat exchange efficiency of the heat transfer plate 100 decreases. There was a problem. Therefore, it is preferable that the depth and width of the concave groove 108 be formed to be the same as the outer diameter of the heat medium pipe 116 so that the gaps 120 and 120 become smaller.
　例えば、熱媒体用管１１６の少なくとも一部を湾曲させてベース部材１０２に埋め込む場合には、凹溝１０８に熱媒体用管１１６を挿入し、蓋溝１０６に蓋板１１０を配置する作業が困難となるため、凹溝１０８の深さや幅を熱媒体用管１１６の外径よりも大きく確保しなければならない。即ち、熱媒体用管１１６の少なくとも一部を湾曲させてベース部材１０２に埋め込む場合は、熱媒体用管１１６の外径に比べて凹溝１０８の深さや幅を大きくせざるを得ず、それに伴って空隙部１２０，１２０がさらに大きくなってしまう。これにより、伝熱板１００の熱交換効率が低下するという問題があった。 For example, when at least a part of the heat medium tube 116 is bent and embedded in the base member 102, it is difficult to insert the heat medium tube 116 into the concave groove 108 and dispose the cover plate 110 in the cover groove 106. Therefore, the depth and width of the groove 108 must be ensured to be larger than the outer diameter of the heat medium pipe 116. That is, when at least a part of the heat medium tube 116 is curved and embedded in the base member 102, the depth and width of the concave groove 108 must be made larger than the outer diameter of the heat medium tube 116. Accordingly, the gaps 120 and 120 are further enlarged. Thereby, there existed a problem that the heat exchange efficiency of the heat exchanger plate 100 fell.
　このような観点から本発明は、伝熱板の熱交換効率が高く、かつ、容易に製造することができる伝熱板の製造方法を提供することを課題とする。 From such a viewpoint, an object of the present invention is to provide a method of manufacturing a heat transfer plate that has a high heat exchange efficiency of the heat transfer plate and can be easily manufactured.
　このような課題を解決するために本発明に係る伝熱板の製造方法は、第一金属部材及び第二金属部材のそれぞれに凹溝が形成されており、前記一対の凹溝同士によって中空の空間部が形成されるように前記第一金属部材と前記第二金属部材を突き合わせるとともに、前記空間部に熱媒体用管を挿入する準備工程と、前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材の少なくともいずれか一方から回転する流入攪拌用回転ツールを挿入して前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする。
　また、本発明に係る伝熱板の製造方法は、第一金属部材及び第二金属部材のいずれか一方に凹溝が形成されており、前記第一金属部材及び前記第二金属部材の他方と前記凹溝とによって中空の空間部が形成されるように前記第一金属部材と前記第二金属部材を重ね合わせるとともに、前記空間部に熱媒体用管を挿入する準備工程と、前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材のいずれか他方から挿入した流入攪拌用回転ツールを前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする。 In order to solve such a problem, in the method for manufacturing a heat transfer plate according to the present invention, the first metal member and the second metal member each have a concave groove, and the pair of concave grooves are hollow. A preparatory step in which the first metal member and the second metal member are abutted so that a space portion is formed and a heat medium pipe is inserted into the space portion, and a temporary assembly structure formed in the preparatory step An inflow agitation rotating tool that rotates from at least one of the first metal member and the second metal member is inserted and moved along the space, and is formed around the heat medium pipe. An inflow agitation step for introducing a plastic fluidized material fluidized by frictional heat into the part, wherein at least one of the width and the height of the space part is larger than the outer diameter of the heat medium pipe Features set to To.
Moreover, the manufacturing method of the heat exchanger plate which concerns on this invention has the ditch | groove formed in any one of a 1st metal member and a 2nd metal member, and the other of said 1st metal member and said 2nd metal member In the preparation step, the first metal member and the second metal member are overlapped so that a hollow space portion is formed by the concave groove, and a heat medium pipe is inserted into the space portion, and the preparation step The inflow stirring rotary tool inserted from the other one of the first metal member and the second metal member of the formed temporary assembly structure is moved along the space and formed around the heat medium pipe. An inflow agitating step for allowing a plastic fluidized material plastically fluidized by frictional heat to flow into the voids, wherein at least one of the width and the height of the space portion is larger than the outer diameter of the heat medium pipe It is characterized by setting to be large That.
　かかる製造方法によれば、前記第一金属部材と前記第二金属部材とで形成された空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きいため、熱媒体用管の一部が湾曲していたとしても、準備工程を容易に行うことができる。また、流入攪拌工程により、熱媒体用管の周囲に形成された空隙部に、塑性流動材を流入させることで、当該空隙部を埋めることができるため、熱媒体用管とその周囲の第一金属部材及び第二金属部材との間で熱を効率よく伝達することができる。これにより、熱交換効率の高い伝熱板を製造することができ、例えば、熱媒体用管に冷却水を通して伝熱板及び冷却対象物を効率的に冷却できる。 According to this manufacturing method, since at least one of the width and the height of the space formed by the first metal member and the second metal member is larger than the outer diameter of the heat medium pipe, the heat medium Even if a part of the working tube is curved, the preparation process can be easily performed. In addition, since the plastic fluidized material is allowed to flow into the gap formed around the heat medium pipe by the inflow stirring step, the gap can be filled, so the heat medium pipe and the surrounding first Heat can be efficiently transferred between the metal member and the second metal member. Thereby, a heat exchanger plate with high heat exchange efficiency can be manufactured, for example, a heat exchanger plate and a cooling target can be efficiently cooled through cooling water through a heat medium pipe.
　また、前記流入攪拌工程では、前記流入攪拌用回転ツールの先端と、前記熱媒体用管に接する仮想鉛直面との最近接距離を１～３ｍｍに設定することが好ましい。また、本発明の前記流入攪拌工程では、前記流入攪拌用回転ツールの先端を、前記第一金属部材と前記第二金属部材とを突き合わせて形成された突合部よりも深く挿入することが好ましい。かかる製造方法によれば、空隙部に塑性流動材を確実に流入させることができる。 In the inflow stirring step, it is preferable that the closest distance between the tip of the inflow stirring rotating tool and the virtual vertical plane in contact with the heat medium pipe is set to 1 to 3 mm. Moreover, in the inflow stirring step of the present invention, it is preferable to insert the tip of the rotating tool for inflow stirring deeper than the abutting portion formed by abutting the first metal member and the second metal member. According to this manufacturing method, the plastic fluidized material can surely flow into the gap.
　また、本発明では、前記第一金属部材と前記第二金属部材とを突き合わせて形成された突合部に沿って摩擦攪拌接合を行う接合工程を含むことが好ましい。また、前記接合工程では、前記突合部に沿って断続的に摩擦攪拌接合を行ってもよい。かかる製造方法によれば、水密性及び気密性の高い伝熱板を製造することができる。また、流入攪拌工程の前に接合工程を行う場合は、第一金属部材と第二金属部材とを予め固定した状態で流入攪拌工程を行うことができるため、流入攪拌工程の作業性を高めることができる。また、接合工程を断続的に行うことで、作業手間を省略することができる。 Further, in the present invention, it is preferable to include a joining step of performing friction stir welding along the abutting portion formed by abutting the first metal member and the second metal member. In the joining step, friction stir welding may be performed intermittently along the abutting portion. According to this manufacturing method, it is possible to manufacture a heat transfer plate having high watertightness and airtightness. Moreover, when performing a joining process before an inflow stirring process, since an inflow stirring process can be performed in the state which fixed the 1st metal member and the 2nd metal member beforehand, the workability | operativity of an inflow stirring process is improved. Can do. Further, the labor can be omitted by performing the joining process intermittently.
　また、本発明では、前記流入攪拌用回転ツールよりも小型の回転ツールを用いて前記接合工程を行うことが好ましい。かかる製造方法によれば、流入攪拌工程では深い部分まで塑性流動化することができるとともに、接合工程での摩擦攪拌接合における塑性化領域は小さくて済むので、接合作業が容易になる。 In the present invention, it is preferable to perform the joining step using a rotating tool that is smaller than the rotating tool for inflow stirring. According to such a manufacturing method, plastic fluidization can be achieved up to a deep portion in the inflow stirring step, and the plasticizing region in the friction stir welding in the joining step can be small, so that the joining operation is facilitated.
　また、前記第一金属部材と前記第二金属部材とを突き合せて形成された突合部に沿って溶接を行う溶接工程を含むことが好ましい。また、前記溶接工程では、前記突合部に沿って断続的に溶接を行ってもよい。かかる製造方法によれば、水密性及び気密性の高い伝熱板を製造することができる。また、流入攪拌工程の前に溶接工程を行う場合は、第一金属部材と第二金属部材とを予め固定した状態で流入攪拌工程を行うことができるため、流入攪拌工程の作業性を高めることができる。また、溶接工程を断続的に行うことで、作業手間を省略することができる。 Moreover, it is preferable that the method includes a welding process in which welding is performed along a butt formed by butting the first metal member and the second metal member. In the welding process, welding may be performed intermittently along the abutting portion. According to this manufacturing method, it is possible to manufacture a heat transfer plate having high watertightness and airtightness. Moreover, when performing a welding process before an inflow stirring process, since an inflow stirring process can be performed in the state which fixed the 1st metal member and the 2nd metal member beforehand, the workability | operativity of an inflow stirring process is improved. Can do. Moreover, work can be omitted by performing the welding process intermittently.
　また、本発明に係る伝熱板の製造方法は、蓋溝の底面に凹溝が形成された第一金属部材と、裏面に凹溝が形成された第二金属部材とを有する伝熱板の製造方法であって、前記凹溝同士で中空の空間部が形成されるように前記第一金属部材の蓋溝に前記第二金属部材を配置するとともに、前記空間部に熱媒体用管を挿入する準備工程と、前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材の少なくともいずれか一方から流入攪拌用回転ツールを挿入して前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする。
　また、蓋溝が形成された第一金属部材と、第二金属部材とを有し、前記第一金属部材及び前記第二金属部材のいずれか一方に凹溝が形成された伝熱板の製造方法であって、前記凹溝と前記第一金属部材及び前記第二金属部材のいずれか他方とで中空の空間部が形成されるように前記第一金属部材の蓋溝に前記第二金属部材を配置するとともに、前記空間部に熱媒体用管を挿入する準備工程と、前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材のいずれか他方から挿入した流入攪拌用回転ツールを前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする。 Moreover, the manufacturing method of the heat exchanger plate which concerns on this invention is a heat exchanger plate which has the 1st metal member by which the ditch | groove was formed in the bottom face of a cover groove | channel, and the 2nd metal member by which the ditch | groove was formed in the back surface. In the manufacturing method, the second metal member is disposed in the lid groove of the first metal member so that a hollow space portion is formed between the concave grooves, and a heat medium pipe is inserted into the space portion. A rotating tool for inflow agitation from at least one of the first metal member and the second metal member of the temporary assembly structure formed in the preparation step and moving along the space portion And an inflow stirring step of flowing a plastic fluidized material plastically fluidized by frictional heat into a gap formed around the heat medium pipe, wherein at least one of the width and height of the space portion is And set to be larger than the outer diameter of the heat medium pipe And wherein the door.
Moreover, it has the 1st metal member in which the cover groove | channel was formed, and the 2nd metal member, and manufacture of the heat exchanger plate by which the concave groove was formed in any one of said 1st metal member and said 2nd metal member In the method, the second metal member is formed in the lid groove of the first metal member such that a hollow space is formed by the concave groove and the other one of the first metal member and the second metal member. And inserting from either one of the first metal member and the second metal member of the temporary assembly structure formed in the preparation step, and a preparation step of inserting the heat medium pipe into the space portion An inflow agitating step of moving an inflow agitating rotary tool along the space and allowing a plastic fluidized material plasticized by frictional heat to flow into a gap formed around the heat medium pipe. , At least one of the width and the height of the space portion is the heating medium. And setting to be larger than the outer diameter of the use tube.
　かかる製造方法によれば、前記第一金属部材と前記第二金属部材とで形成された空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きいため、熱媒体用管の一部が湾曲していたとしても、準備工程を容易に行うことができる。また、流入攪拌工程により、熱媒体用管の周囲に形成された空隙部に、塑性流動材を流入させることで、当該空隙部を埋めることができるため、熱媒体用管とその周囲の第一金属部材及び第二金属部材との間で熱を効率よく伝達することができる。これにより、熱交換効率の高い伝熱板を製造することができ、例えば、熱媒体用管に冷却水を通して伝熱板及び冷却対象物を効率的に冷却できる。 According to this manufacturing method, since at least one of the width and the height of the space formed by the first metal member and the second metal member is larger than the outer diameter of the heat medium pipe, the heat medium Even if a part of the working tube is curved, the preparation process can be easily performed. In addition, since the plastic fluidized material is allowed to flow into the gap formed around the heat medium pipe by the inflow stirring step, the gap can be filled, so the heat medium pipe and the surrounding first Heat can be efficiently transferred between the metal member and the second metal member. Thereby, a heat exchanger plate with high heat exchange efficiency can be manufactured, for example, a heat exchanger plate and a cooling target can be efficiently cooled through cooling water through a heat medium pipe.
　また、本発明では、前記流入攪拌用回転ツールの先端と、前記熱媒体用管に接する仮想鉛直面との最近接距離を１～３ｍｍに設定することが好ましい。また、前記流入攪拌工程では、前記流入攪拌用回転ツールの先端を、前記第一金属部材と前記第二金属部材との界面に達するように挿入することが好ましい。かかる製造方法によれば、空隙部に塑性流動材を確実に流入させることができる。 In the present invention, it is preferable that the closest distance between the tip of the rotating tool for agitation and the virtual vertical plane in contact with the heat medium pipe is set to 1 to 3 mm. In the inflow stirring step, it is preferable to insert the tip of the inflow stirring rotary tool so as to reach the interface between the first metal member and the second metal member. According to this manufacturing method, the plastic fluidized material can surely flow into the gap.
　また、本発明では、前記第一金属部材の前記蓋溝の側壁と前記第二金属部材の側面との突合部に沿って摩擦攪拌接合を行う接合工程をさらに含むことが好ましい。また、本発明の前記接合工程では、前記第一金属部材の蓋溝の側壁と前記第二金属部材の側面との突合部に沿って断続的に摩擦攪拌接合を行うことが好ましい。かかる製造方法によれば、水密性及び気密性の高い伝熱板を製造することができる。また、流入攪拌工程の前に接合工程を行う場合は、第一金属部材と第二金属部材とを予め固定した状態で流入攪拌工程を行うことができるため、流入攪拌工程の作業性を高めることができる。また、接合工程を断続的に行うことで、作業手間を省略することができる。 Further, in the present invention, it is preferable that the method further includes a joining step of performing friction stir welding along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. Further, in the joining step of the present invention, it is preferable that the friction stir welding is intermittently performed along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. According to this manufacturing method, it is possible to manufacture a heat transfer plate having high watertightness and airtightness. Moreover, when performing a joining process before an inflow stirring process, since an inflow stirring process can be performed in the state which fixed the 1st metal member and the 2nd metal member beforehand, the workability | operativity of an inflow stirring process is improved. Can do. Further, the labor can be omitted by performing the joining process intermittently.
　また、本発明では、前記流入攪拌用回転ツールよりも小型の回転ツールを用いて前記接合工程を行うことが好ましい。かかる製造方法によれば、流入攪拌工程では深い部分まで塑性流動化することができるとともに、接合工程での摩擦攪拌接合における塑性化領域は小さくて済むので、接合作業が容易になる。 In the present invention, it is preferable to perform the joining step using a rotating tool that is smaller than the rotating tool for inflow stirring. According to such a manufacturing method, plastic fluidization can be achieved up to a deep portion in the inflow stirring step, and the plasticizing region in the friction stir welding in the joining step can be small, so that the joining operation is facilitated.
　また、本発明では、前記第一金属部材の前記蓋溝の側壁と前記第二金属部材の側面との突合部に沿って溶接を行う溶接工程をさらに含むことが好ましい。また、前記溶接工程では、前記突合部に沿って断続的に溶接を行うことが好ましい。かかる製造方法によれば、水密性及び気密性の高い伝熱板を製造することができる。また、流入攪拌工程の前に溶接工程を行う場合は、第一金属部材と第二金属部材とを予め固定した状態で流入攪拌工程を行うことができるため、流入攪拌工程の作業性を高めることができる。また、溶接工程を断続的に行うことで、作業手間を省略することができる。 Further, in the present invention, it is preferable that the method further includes a welding step of performing welding along a butt portion between a side wall of the lid groove of the first metal member and a side surface of the second metal member. In the welding process, it is preferable to perform welding intermittently along the abutting portion. According to this manufacturing method, it is possible to manufacture a heat transfer plate having high watertightness and airtightness. Moreover, when performing a welding process before an inflow stirring process, since an inflow stirring process can be performed in the state which fixed the 1st metal member and the 2nd metal member beforehand, the workability | operativity of an inflow stirring process is improved. Can do. Moreover, work can be omitted by performing the welding process intermittently.
　また、前記接合工程を前記流入攪拌工程よりも先に行う場合、前記流入攪拌工程では、前記接合工程で形成された塑性化領域を、前記流入攪拌用回転ツールによって再攪拌することが好ましい。かかる製造方法によれば、第二金属部材を固定した状態で流入攪拌工程を行うことができるとともに、伝熱板に露出する塑性化領域を小さくすることができる。 In addition, when the joining step is performed prior to the inflow stirring step, it is preferable that the plasticized region formed in the joining step is re-stirred by the inflow stirring rotating tool in the inflow stirring step. According to this manufacturing method, the inflow stirring step can be performed with the second metal member fixed, and the plasticized region exposed to the heat transfer plate can be reduced.
　また、本発明では、前記第一金属部材に開口する上蓋溝の底面に前記蓋溝を開口させておき、前記流入攪拌工程後に、前記上蓋溝に上蓋板を配置する上蓋溝閉塞工程と、前記上蓋溝の側壁と前記上蓋板の側面との突合部に沿って摩擦攪拌接合を行う上蓋接合工程と、をさらに含むことが好ましい。かかる製造方法によれば、第二金属部材の上に上蓋板を用いてさらに摩擦攪拌接合を行うため、熱媒体用管を伝熱板のより深い位置に配置させることができる。 Further, in the present invention, the lid groove is opened on the bottom surface of the top lid groove opened in the first metal member, and after the inflow stirring step, an upper lid groove closing step of arranging an upper lid plate in the upper lid groove; It is preferable that the method further includes an upper lid joining step of performing friction stir welding along the abutting portion between the side wall of the upper lid groove and the side surface of the upper lid plate. According to this manufacturing method, since the friction stir welding is further performed on the second metal member using the upper lid plate, the heat medium pipe can be disposed at a deeper position of the heat transfer plate.
　本発明に係る伝熱板の製造方法によれば、伝熱板を容易に製造することができるとともに、熱交換効率の高い伝熱板を提供することができる。 According to the method for manufacturing a heat transfer plate according to the present invention, a heat transfer plate can be easily manufactured and a heat transfer plate with high heat exchange efficiency can be provided.
第一実施形態に係る伝熱板を示した斜視図である。It is the perspective view which showed the heat exchanger plate which concerns on 1st embodiment. 第一実施形態に係る伝熱板を示した分解斜視図である。It is the disassembled perspective view which showed the heat exchanger plate which concerns on 1st embodiment. （ａ）は、第一実施形態に係る伝熱板を示した分解断面図であり、（ｂ）第一実施形態に係る第一金属部材に熱媒体用管と第二金属部材を配置した断面図である。(A) is a disassembled sectional view showing the heat transfer plate according to the first embodiment, (b) a cross section in which the heat medium pipe and the second metal member are arranged on the first metal member according to the first embodiment. FIG. 第一実施形態に係る伝熱板を示した断面図である。It is sectional drawing which showed the heat exchanger plate which concerns on 1st embodiment. 第一実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、挿入工程及び配置工程、（ｃ）は、接合工程、（ｄ）は、第一表面側流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 1st embodiment, Comprising: (a) is a cutting process, (b) is an insertion process and an arrangement | positioning process, (c) is a joining process, (d () Is the figure which showed the 1st surface side inflow stirring process. 第一実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、第二表面側流入攪拌工程、（ｂ）は、第一裏面側流入攪拌工程、（ｃ）は、第二裏面側流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 1st embodiment, Comprising: (a) is a 2nd surface side inflow stirring process, (b) is a 1st back surface side inflow stirring process, (c). These are figures which showed the 2nd back surface side inflow stirring process. 第一実施形態に係る第一表面側流入攪拌工程を示した模式断面図である。It is the schematic cross section which showed the 1st surface side inflow stirring process which concerns on 1st embodiment. 第二実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、挿入工程及び配置工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 2nd embodiment, Comprising: (a) is a cutting process, (b) is the figure which showed the insertion process and the arrangement | positioning process. 第二実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、接合工程、（ｂ）は、第一表面側流入攪拌工程、（ｃ）は、第二表面側流入攪拌工程を示す。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 2nd embodiment, Comprising: (a) is a joining process, (b) is a 1st surface side inflow stirring process, (c) is a 2nd surface. A side inflow stirring process is shown. 第三実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、接合工程、（ｃ）は、表面側流入攪拌工程を示す。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 3rd embodiment, (a) is a cutting process, (b) is a joining process, (c) shows the surface side inflow stirring process. 第四実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、挿入工程及び配置工程、（ｃ）は、流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 4th embodiment, (a) is a cutting process, (b) is an insertion process and an arrangement | positioning process, (c) shows an inflow stirring process. It is a figure. 第五実施形態に係る伝熱板を示した斜視図である。It is the perspective view which showed the heat exchanger plate which concerns on 5th embodiment. 第六実施形態に係る伝熱板を示した斜視図である。It is the perspective view which showed the heat exchanger plate which concerns on 6th embodiment. 第六実施形態に係る伝熱板を示した分解斜視図である。It is the disassembled perspective view which showed the heat exchanger plate which concerns on 6th embodiment. （ａ）は、第六実施形態に係る伝熱板を示した分解断面図であり、（ｂ）は、第六実施形態に係る第一金属部材に熱媒体用管と第二金属部材を配置した断面図である。(A) is the exploded sectional view showing the heat exchanger plate concerning a 6th embodiment, and (b) arranges the pipe for heat medium and the 2nd metal member in the 1st metal member concerning a 6th embodiment. FIG. 第六実施形態に係る伝熱板を示した断面図である。It is sectional drawing which showed the heat exchanger plate which concerns on 6th embodiment. 第六実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、挿入工程、（ｂ）は、蓋溝閉塞工程、（ｃ）は、接合工程、（ｄ）は、第一表面側流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 6th embodiment, Comprising: (a) is an insertion process, (b) is a cover groove blockade process, (c) is a joining process, (d). These are figures which showed the 1st surface side inflow stirring process. 第六実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、第二表面側流入攪拌工程、（ｂ）は、第一裏面側流入攪拌工程、（ｃ）は、第二裏面側流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 6th embodiment, Comprising: (a) is a 2nd surface side inflow stirring process, (b) is a 1st back surface side inflow stirring process, (c). These are figures which showed the 2nd back surface side inflow stirring process. 第六実施形態に係る第一表面側流入攪拌工程を示した模式断面図である。It is the schematic cross section which showed the 1st surface side inflow stirring process which concerns on 6th embodiment. 第七実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、蓋溝閉塞工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 7th embodiment, (a) is a cutting process, (b) is the figure which showed the cover groove | channel obstruction | occlusion process. 第七実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、接合工程、（ｂ）は、第一表面側流入攪拌工程、（ｃ）は、第二表面側流入攪拌工程を示す。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 7th embodiment, Comprising: (a) is a joining process, (b) is a 1st surface side inflow stirring process, (c) is a 2nd surface. A side inflow stirring process is shown. 第八実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程、（ｂ）は、接合工程、（ｃ）は、表面側流入攪拌工程を示す。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 8th embodiment, (a) is a cutting process, (b) is a joining process, (c) shows a surface side inflow stirring process. 第九実施形態に係る伝熱板を示した断面図であって、（ａ）は、分解図、（ｂ）は、完成図である。It is sectional drawing which showed the heat exchanger plate which concerns on 9th embodiment, Comprising: (a) is an exploded view, (b) is a completion figure. 第十実施形態に係る伝熱板の製造方法を示した断面図であって、（ａ）は、切削工程及び挿入工程を示し、（ｂ）は、蓋溝閉塞工程後に表裏を逆にした状態を示し、（ｃ）は、表面側流入攪拌工程を示した図である。It is sectional drawing which showed the manufacturing method of the heat exchanger plate which concerns on 10th embodiment, Comprising: (a) shows a cutting process and an insertion process, (b) is the state which reversed the front and back after the cover groove | channel closing process (C) is the figure which showed the surface side inflow stirring process. 第十実施形態に係る伝熱板を示した断面図である。It is sectional drawing which showed the heat exchanger plate which concerns on 10th embodiment. 第十一実施形態に係る伝熱板を示した断面図である。It is sectional drawing which showed the heat exchanger plate which concerns on 11th embodiment. 第十二実施形態に係る伝熱板を示した断面図である。It is sectional drawing which showed the heat exchanger plate which concerns on 12th embodiment. 特許文献１に係る伝熱板を示した図であって、（ａ）は、斜視図、（ｂ）は断面図である。It is the figure which showed the heat exchanger plate which concerns on patent document 1, Comprising: (a) is a perspective view, (b) is sectional drawing.
［第一実施形態］
　本発明の実施形態について、図面を参照して詳細に説明する。説明における上下左右前後は、特に断りのない限り図１の矢印に従う。 [First embodiment]
Embodiments of the present invention will be described in detail with reference to the drawings. Unless otherwise specified, the vertical and horizontal directions in the description follow the arrows in FIG.
　まず、本実施形態で形成される伝熱板１について説明する。本実施形態に係る伝熱板１は、図１乃至図４に示すように、厚板形状の第一金属部材２と、第一金属部材２の上に配置される第二金属部材３と、第一金属部材２と第二金属部材３の間に挿入される熱媒体用管４とを主に備えている。熱媒体用管４は、平面視Ｕ字状を呈するように湾曲して形成されている。 First, the heat transfer plate 1 formed in the present embodiment will be described. As shown in FIGS. 1 to 4, the heat transfer plate 1 according to this embodiment includes a thick plate-shaped first metal member 2, a second metal member 3 disposed on the first metal member 2, and A heat medium pipe 4 inserted mainly between the first metal member 2 and the second metal member 3 is mainly provided. The heat medium pipe 4 is curved and formed so as to have a U-shape in plan view.
　第一金属部材２と第二金属部材３は、図１及び図４に示すように、摩擦攪拌により生成された塑性化領域Ｗ１～Ｗ６によって一体形成されている。ここで、「塑性化領域」とは、回転ツールの摩擦熱によって加熱されて現に塑性化している状態と、回転ツールが通り過ぎて常温に戻った状態の両方を含むこととする。伝熱板１の側面には、塑性化領域Ｗ１，Ｗ２が形成されている。第二金属部材３の表面３ａには、塑性化領域Ｗ３，Ｗ４が形成されている。さらに、第一金属部材２の裏面２ｂには塑性化領域Ｗ５，Ｗ６が形成されている。 As shown in FIGS. 1 and 4, the first metal member 2 and the second metal member 3 are integrally formed by plasticizing regions W1 to W6 generated by friction stirring. Here, the “plasticization region” includes both a state heated by frictional heat of the rotary tool and actually plasticized, and a state where the rotary tool passes and returns to room temperature. Plasticized regions W <b> 1 and W <b> 2 are formed on the side surface of the heat transfer plate 1. Plasticized regions W3 and W4 are formed on the surface 3a of the second metal member 3. Further, plasticized regions W5 and W6 are formed on the back surface 2b of the first metal member 2.
　第一金属部材２は、例えば、アルミニウム合金（ＪＩＳ：Ａ６０６１）で形成されている。第一金属部材２は、熱媒体用管４に流れる熱媒体の熱を外部に伝達させる役割、あるいは、外部の熱を熱媒体用管４に流れる熱媒体に伝達させる役割を果たす。図２及び図３に示すように、第一金属部材２の表面２ａには、熱媒体用管４の一方側（下半部）を収容する第一凹溝５が凹設されている。 The first metal member 2 is made of, for example, an aluminum alloy (JIS: A6061). The first metal member 2 plays a role of transferring the heat of the heat medium flowing through the heat medium pipe 4 to the outside or a role of transferring external heat to the heat medium flowing through the heat medium pipe 4. As shown in FIGS. 2 and 3, a first groove 5 that accommodates one side (lower half) of the heat medium pipe 4 is formed in the surface 2 a of the first metal member 2.
　第一凹溝５は、熱媒体用管４の下半部を収容する部分であって、平面視Ｕ字状を呈し、上方が開口するように断面視矩形に形成されている。第一凹溝５は、底面５ｃと、底面５ｃから垂直に立ち上がる立面５ａ，５ｂを備えている。 The first concave groove 5 is a portion that accommodates the lower half of the heat medium pipe 4 and has a U shape in plan view, and is formed in a rectangular shape in cross section so that the upper part is open. The first concave groove 5 includes a bottom surface 5c and rising surfaces 5a and 5b that rise vertically from the bottom surface 5c.
　第二金属部材３は、図２及び図３に示すように、第一金属部材２と同様のアルミニウム合金からなり、第一金属部材２と略同じ形状に形成されている。第二金属部材３の両端面は、第一金属部材２の両端面と面一に形成されている。また、第二金属部材３の側面３ｃは、第一金属部材２の側面２ｃと面一に形成され、第二金属部材３の側面３ｄは、第一金属部材２の側面２ｄと面一に形成されている。第二金属部材３の裏面３ｂには、平面視Ｕ字状を呈し、第一凹溝５の位置に対応して第二凹溝６が凹設されている。 2 and 3, the second metal member 3 is made of the same aluminum alloy as the first metal member 2 and is formed in substantially the same shape as the first metal member 2. Both end surfaces of the second metal member 3 are formed flush with both end surfaces of the first metal member 2. Further, the side surface 3c of the second metal member 3 is formed flush with the side surface 2c of the first metal member 2, and the side surface 3d of the second metal member 3 is formed flush with the side surface 2d of the first metal member 2. Has been. On the back surface 3 b of the second metal member 3, a U-shape in a plan view is formed, and a second groove 6 is recessed corresponding to the position of the first groove 5.
　第二凹溝６は、図３の（ａ）及び（ｂ）に示すように、熱媒体用管４の他方側（上半部）を収容する部分であって、下方が開口するように断面視矩形に形成されている。第二凹溝６は、天面６ｃと天面６ｃから垂直に立ち下がる立面６ａ，６ｂを備えている。
　なお、第一金属部材２及び第二金属部材３は、本実施形態ではアルミニウム合金としたが、摩擦攪拌可能な金属部材であれば他の材料であってもよい。 As shown in FIGS. 3A and 3B, the second concave groove 6 is a portion that accommodates the other side (upper half portion) of the heat medium pipe 4, and has a cross section that opens downward. It is formed in a viewing rectangle. The second concave groove 6 includes a top surface 6c and vertical surfaces 6a and 6b that vertically fall from the top surface 6c.
In addition, although the 1st metal member 2 and the 2nd metal member 3 were made into the aluminum alloy in this embodiment, another material may be sufficient if it is a metal member which can be frictionally stirred.
　熱媒体用管４は、図２及び図３に示すように、平面視Ｕ字状を呈する円筒管である。熱媒体用管４の材質は特に制限されるものではないが、本実施形態では銅製である。熱媒体用管４は、中空部４ａに、例えば高温液、高温ガスなどの熱媒体を循環させて、第一金属部材２及び第二金属部材３に熱を伝達させる部材、あるいは中空部４ａに、例えば冷却水、冷却ガスなどの熱媒体を循環させて、第一金属部材２及び第二金属部材３から熱を伝達される部材である。なお、熱媒体用管４の中空部４ａに、例えばヒーターを通して、ヒーターから発生する熱を第一金属部材２及び第二金属部材３に伝達させる部材として利用してもよい。 As shown in FIGS. 2 and 3, the heat medium pipe 4 is a cylindrical pipe having a U-shape in plan view. The material of the heat medium pipe 4 is not particularly limited, but is made of copper in the present embodiment. The heat medium pipe 4 is a member that circulates a heat medium such as a high-temperature liquid or a high-temperature gas in the hollow portion 4a and transmits heat to the first metal member 2 and the second metal member 3, or the hollow portion 4a. For example, the heat is transferred from the first metal member 2 and the second metal member 3 by circulating a heat medium such as cooling water or cooling gas. In addition, you may utilize as a member which transmits the heat which generate | occur | produces from a heater to the 1st metal member 2 and the 2nd metal member 3 through the hollow part 4a of the pipe | tube 4 for heat media, for example.
　図３の（ｂ）に示すように、第一金属部材２に第二金属部材３を配置すると、第一金属部材２の第一凹溝５と第二金属部材３の第二凹溝６とが合わさり、断面視矩形の空間部Ｋが形成される。空間部Ｋには、熱媒体用管４が収容される。 As shown in FIG. 3B, when the second metal member 3 is disposed on the first metal member 2, the first groove 5 of the first metal member 2 and the second groove 6 of the second metal member 3 To form a space K having a rectangular cross section. In the space K, the heat medium pipe 4 is accommodated.
　ここで、第一凹溝５の深さは、熱媒体用管４の外径の１／２に形成されている。また、第一凹溝５の幅は、熱媒体用管４の外径の１．１倍となるように形成されている。一方、第二凹溝６の深さは、熱媒体用管４の半径の１．１倍に形成されている。また、第二凹溝６の幅は、熱媒体用管４の外径の１．１倍に形成されている。したがって、第一金属部材２に熱媒体用管４及び第二金属部材３を配置すると、第一凹溝５と熱媒体用管４の下端は接触し、熱媒体用管４の左右端及び上端は、第一凹溝５及び第二凹溝６と微細な隙間をあけて離間する。言い換えると、空間部Ｋの幅及び高さは、熱媒体用管４の外径よりも大きく形成されている。 Here, the depth of the first groove 5 is formed to be 1/2 of the outer diameter of the heat medium pipe 4. Further, the width of the first concave groove 5 is formed to be 1.1 times the outer diameter of the heat medium pipe 4. On the other hand, the depth of the second concave groove 6 is formed to be 1.1 times the radius of the heat medium pipe 4. The width of the second concave groove 6 is 1.1 times the outer diameter of the heat medium pipe 4. Therefore, when the heat medium pipe 4 and the second metal member 3 are arranged on the first metal member 2, the first groove 5 and the lower end of the heat medium pipe 4 are in contact with each other, and the left and right ends and the upper end of the heat medium pipe 4 are in contact with each other. Are spaced apart from the first concave groove 5 and the second concave groove 6 with a fine gap. In other words, the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 4.
　矩形断面の空間部Ｋ内に、円断面の熱媒体用管４を挿入しているため、熱媒体用管４の周囲には、空隙部が形成される。例えば、図２に示すように、熱媒体用管４内を流れる媒体の流動方向を「Ｙ」とすると、熱媒体用管４の周囲に形成される空隙部のうち、流動方向Ｙに対して左上側に形成される部分を「第一空隙部Ｐ１」とし、右上側に形成される部分を「第二空隙部Ｐ２」とし、左下側に形成される部分を「第三空隙部Ｐ３」とし、右下側に形成される部分を「第四空隙部Ｐ４」とする。また、第一金属部材２、第二金属部材３及び熱媒体用管４からなる部材を「仮組構造体Ｕ」とする。 Since the circular heat transfer tube 4 is inserted into the rectangular space K, a space is formed around the heat transfer tube 4. For example, as shown in FIG. 2, if the flow direction of the medium flowing in the heat medium pipe 4 is “Y”, among the voids formed around the heat medium pipe 4, the flow direction Y The portion formed on the upper left side is referred to as “first gap P1”, the portion formed on the upper right side is referred to as “second gap P2”, and the portion formed on the lower left side is referred to as “third gap P3”. A portion formed on the lower right side is referred to as a “fourth gap P4”. A member made up of the first metal member 2, the second metal member 3, and the heat medium pipe 4 is referred to as a “temporary assembly U”.
　また、図３の（ｂ）に示すように、第一金属部材２と第二金属部材３とが突き合わされて突合部Ｖが形成される。突合部Ｖのうち、仮組構造体Ｕの一方の側面に現われる部分を「突合部Ｖ１」とし、他方の側面に現れる部分を「突合部Ｖ２」とする。 Also, as shown in FIG. 3B, the first metal member 2 and the second metal member 3 are abutted to form an abutting portion V. Of the butt portion V, a portion that appears on one side surface of the temporary assembly U is referred to as “butt portion V1”, and a portion that appears on the other side surface is referred to as “butt portion V2”.
　塑性化領域Ｗ１，Ｗ２は、図１及び図４に示すように、突合部Ｖ１，Ｖ２に摩擦攪拌接合を施した際に、第一金属部材２及び第二金属部材３の一部が塑性流動化して一体化された領域である。即ち、突合部Ｖ１，Ｖ２に沿って、後記する接合用回転ツール５０（図５参照）を用いて摩擦攪拌接合を行うと、突合部Ｖ１，Ｖ２にかかる第一金属部材２及び第二金属部材３の金属材料が、接合用回転ツール５０の摩擦熱により塑性流動化して一体化されることで、第一金属部材２と第二金属部材３が接合される。 As shown in FIGS. 1 and 4, when the friction stir welding is performed on the abutting portions V <b> 1 and V <b> 2, a part of the first metal member 2 and the second metal member 3 is plastically flown in the plasticizing regions W <b> 1 and W <b> 2. This is a unified area. That is, when friction stir welding is performed along the abutting portions V1 and V2 using a joining rotary tool 50 (see FIG. 5) described later, the first metal member 2 and the second metal member applied to the abutting portions V1 and V2. The first metal member 2 and the second metal member 3 are joined by the three metal materials being plastically fluidized and integrated by frictional heat of the joining rotary tool 50.
　塑性化領域Ｗ３，Ｗ４は、図１及び図４に示すように、第二金属部材３の表面３ａから挿入した流入攪拌用回転ツール５５（図５参照）を第二凹溝６に沿って移動させた際に形成されたものである。塑性化領域Ｗ３の一部は、熱媒体用管４の周囲に形成された第一空隙部Ｐ１に流入している。塑性化領域Ｗ４の一部は、熱媒体用管４の周囲に形成された第二空隙部Ｐ２に流入している。即ち、塑性化領域Ｗ３，Ｗ４は、第二金属部材３の一部が塑性流動して、第一空隙部Ｐ１及び第二空隙部Ｐ２にそれぞれ流入して一体化された領域であって、熱媒体用管４と接触している。 As shown in FIGS. 1 and 4, the plasticizing regions W <b> 3 and W <b> 4 are moved along the second groove 6 by the inflow stirring rotary tool 55 (see FIG. 5) inserted from the surface 3 a of the second metal member 3. It was formed when A part of the plasticizing region W3 flows into the first gap P1 formed around the heat medium pipe 4. A part of the plasticized region W4 flows into the second gap P2 formed around the heat medium pipe 4. That is, the plasticized regions W3 and W4 are regions in which a part of the second metal member 3 is plastically flowed and flows into the first gap P1 and the second gap P2, respectively, It is in contact with the medium tube 4.
　塑性化領域Ｗ５，Ｗ６は、第一金属部材２の裏面２ｂから挿入した流入攪拌用回転ツール５５を第一凹溝５に沿って移動させた際に形成されたものである。塑性化領域Ｗ５の一部は、熱媒体用管４の周囲に形成された第三空隙部Ｐ３に流入している。塑性化領域Ｗ６の一部は、熱媒体用管４の周囲に形成された第四空隙部Ｐ４に流入している。即ち、塑性化領域Ｗ５，Ｗ６は、第一金属部材２の一部が塑性流動して、第三空隙部Ｐ３及び第四空隙部Ｐ４にそれぞれ流入して一体化された領域であって、熱媒体用管４と接触している。 The plasticization regions W5 and W6 are formed when the inflow stirring rotary tool 55 inserted from the back surface 2b of the first metal member 2 is moved along the first concave groove 5. A part of the plasticized region W5 flows into the third gap P3 formed around the heat medium pipe 4. A part of the plasticizing region W6 flows into a fourth gap P4 formed around the heat medium pipe 4. That is, the plasticized regions W5 and W6 are regions in which a part of the first metal member 2 is plastically flowed and flows into the third gap P3 and the fourth gap P4, respectively, It is in contact with the medium tube 4.
　次に、伝熱板１の製造方法について、図５乃至図７を用いて説明する。第一実施形態に係る伝熱板の製造方法は、第一金属部材２及び第二金属部材３を形成するとともに、第一金属部材２に熱媒体用管４及び第二金属部材３を配置する準備工程と、突合部Ｖ１，Ｖ２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材３の表面３ａ側及び第一金属部材２の裏面２ｂから流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを流入させる流入攪拌工程とを含む。 Next, a method for manufacturing the heat transfer plate 1 will be described with reference to FIGS. The manufacturing method of the heat exchanger plate according to the first embodiment forms the first metal member 2 and the second metal member 3 and arranges the heat medium pipe 4 and the second metal member 3 on the first metal member 2. Inflow from the preparation step, the joining step of moving the joining rotary tool 50 along the abutting portions V1 and V2 to perform friction stir welding, the front surface 3a side of the second metal member 3 and the back surface 2b of the first metal member 2 And an inflow stirring step of moving the stirring rotary tool 55 to cause the plastic fluid material Q to flow into the first gap portion P1 to the fourth gap portion P4.
　（準備工程）
　準備工程は、第一金属部材２及び第二金属部材３を形成する切削工程と、第一金属部材２に形成された第一凹溝５に熱媒体用管４を挿入する挿入工程と、第一金属部材２に第二金属部材３を配置する配置工程とを含む。 (Preparation process)
The preparation step includes a cutting step for forming the first metal member 2 and the second metal member 3, an insertion step for inserting the heat medium pipe 4 into the first concave groove 5 formed in the first metal member 2, A disposing step of disposing the second metal member 3 on the one metal member 2.
　切削工程では、図５の（ａ）に示すように、公知の切削加工により、厚板部材に断面視矩形を呈する第一凹溝５を形成する。これにより、上方に開口する第一凹溝５を備えた第一金属部材２が形成される。
　また、切削工程では、公知の切削加工により、板厚部材に断面視矩形を呈する第二凹溝６形成する。これにより、下方に開口する第二凹溝６を備えた第二金属部材３が形成される。
　なお、第一実施形態においては、第一金属部材２及び第二金属部材３を切削加工により形成したが、アルミニウム合金製の押出形材や鋳造品を用いてもよい。 In the cutting step, as shown in FIG. 5A, the first concave groove 5 having a rectangular shape in cross section is formed on the thick plate member by a known cutting process. Thereby, the 1st metal member 2 provided with the 1st ditch | groove 5 opened upwards is formed.
In the cutting process, the second concave groove 6 having a rectangular shape in cross section is formed in the plate thickness member by a known cutting process. Thereby, the 2nd metal member 3 provided with the 2nd ditch | groove 6 opened below is formed.
In addition, in 1st embodiment, although the 1st metal member 2 and the 2nd metal member 3 were formed by cutting, you may use the extrusion shape material and castings made from aluminum alloy.
　挿入工程では、図５の（ｂ）に示すように、第一凹溝５に熱媒体用管４を挿入する。このとき、熱媒体用管４の下半部は、第一凹溝５の底面５ｃと接触し、第一凹溝５の立面５ａ，５ｂとは微細な隙間をあけて離間する。 In the insertion step, the heat medium pipe 4 is inserted into the first groove 5 as shown in FIG. At this time, the lower half of the heat medium pipe 4 is in contact with the bottom surface 5c of the first concave groove 5, and is separated from the standing surfaces 5a and 5b of the first concave groove 5 with a fine gap.
　配置工程では、図５の（ｂ）に示すように、熱媒体用管４の上半部を第二金属部材３に形成された第二凹溝６に挿入しつつ、第一金属部材２上に第二金属部材３を配置する。これにより、第一金属部材２、第二金属部材３及び熱媒体用管４からなる仮組構造体Ｕが形成される。このとき、熱媒体用管４と、第二金属部材３の裏面３ｂに形成された第二凹溝６の両立面６ａ，６ｂ及び天面６ｃとは微細な隙間をあけて離間する。また、第一金属部材２と第二金属部材３とが突き合わされて突合部Ｖ１，Ｖ２が形成される。 In the arranging step, as shown in FIG. 5B, the upper half of the heat medium pipe 4 is inserted into the second concave groove 6 formed in the second metal member 3, The 2nd metal member 3 is arrange | positioned. Thereby, the temporary assembly structure U which consists of the 1st metal member 2, the 2nd metal member 3, and the pipe | tube 4 for heat media is formed. At this time, the heat medium pipe 4 and the compatible surfaces 6a and 6b and the top surface 6c of the second groove 6 formed on the back surface 3b of the second metal member 3 are separated from each other with a fine gap. Further, the first metal member 2 and the second metal member 3 are abutted to form the abutting portions V1 and V2.
　（接合工程）
　次に、図５の（ｃ）に示すように、仮組構造体Ｕのうち突合部Ｖ１が現れる面を上にした後、突合部Ｖ１沿って摩擦攪拌接合を行う。摩擦攪拌接合は、接合用回転ツール５０（公知の回転ツール）を用いて行う。接合用回転ツール５０は、例えば、工具鋼からなり、円柱形のツール本体５１と、ツール本体５１の底面５２の中心部から同心軸で垂下するピン５３とを有する。ピン５３は、先端に向けて幅狭となるテーパ状に形成されている。なお、ピン５３の周面には、その軸方向に沿って図示しない複数の小溝や径方向に沿ったネジ溝が形成されていてもよい。 (Joining process)
Next, as shown in FIG. 5C, after the surface where the abutting portion V1 appears in the temporary assembly structure U is faced up, friction stir welding is performed along the abutting portion V1. Friction stir welding is performed using a welding rotary tool 50 (a known rotary tool). The joining rotary tool 50 is made of, for example, tool steel, and includes a cylindrical tool body 51 and a pin 53 that hangs down on a concentric axis from the center of the bottom surface 52 of the tool body 51. The pin 53 is formed in a tapered shape that becomes narrower toward the tip. A plurality of small grooves (not shown) and screw grooves along the radial direction may be formed on the peripheral surface of the pin 53 along the axial direction.
　摩擦攪拌接合は、第一金属部材２及び第二金属部材３を図示しない治具により拘束した状態で、突合部Ｖ１に高速回転する接合用回転ツール５０を押し込み、突合部Ｖ１に沿って移動させる。高速回転するピン５３により、その周囲の第一金属部材２及び第二金属部材３のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化した後に冷却されて一体化する。突合部Ｖ１に対して摩擦攪拌接合を行ったら、突合部Ｖ２に対しても同様に摩擦攪拌接合を行う。 In the friction stir welding, the first metal member 2 and the second metal member 3 are constrained by a jig (not shown), and the joining rotary tool 50 that rotates at a high speed is pushed into the abutting portion V1 and moved along the abutting portion V1. . The aluminum alloy material of the surrounding first metal member 2 and second metal member 3 is heated by frictional heat and plastic fluidized by the pin 53 rotating at high speed, and then cooled and integrated. When friction stir welding is performed on the abutting portion V1, friction stir welding is similarly performed on the abutting portion V2.
　（流入攪拌工程）
　流入攪拌工程では、図５の（ｄ）、図６の（ａ）乃至（ｃ）に示すように、第一金属部材２、熱媒体用管４及び第二金属部材３からなる仮組構造体Ｕの表面及び裏面から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを流入させる。本実施形態に係る流入攪拌工程は、第二金属部材３の表面３ａで流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑを流入させる表面側流入攪拌工程と、第一金属部材２の裏面２ｂで流入攪拌用回転ツール５５を移動させて第三空隙部Ｐ３及び第四空隙部Ｐ４に塑性流動材Ｑを流入させる裏面側流入攪拌工程を含むものである。 (Inflow stirring process)
In the inflow stirring step, as shown in FIG. 5D and FIG. 6A to FIG. 6C, the temporary assembly structure including the first metal member 2, the heat medium pipe 4, and the second metal member 3. The inflow and stirring rotary tool 55 is moved from the front and back surfaces of U to cause the plastic fluid Q to flow into the first gap P1 to the fourth gap P4. In the inflow agitation process according to the present embodiment, the inflow agitation rotating tool 55 is moved on the surface 3a of the second metal member 3 to allow the plastic fluid material Q to flow into the first gap P1 and the second gap P2. An inflow agitation step, and a back side inflow agitation step in which the inflow agitation rotary tool 55 is moved on the back surface 2b of the first metal member 2 to cause the plastic fluid material Q to flow into the third gap portion P3 and the fourth gap portion P4. It is a waste.
　なお、表面側流入攪拌工程のうち、第一空隙部Ｐ１に塑性流動材Ｑを流入させる工程を第一表面側流入攪拌工程とし、第二空隙部Ｐ２に塑性流動材Ｑを流入させる工程を第二表面側流入攪拌工程とする。また、第三空隙部Ｐ３に塑性流動材Ｑを流入させる工程を第一裏面側流入攪拌工程とし、第四空隙部Ｐ４に塑性流動材Ｑを流入させる工程を第二裏面側流入攪拌工程とする。 Of the surface side inflow stirring step, the step of flowing the plastic fluid material Q into the first gap portion P1 is referred to as the first surface side inflow stirring step, and the step of flowing the plastic fluid material Q into the second gap portion P2 is the first step. Two surface side inflow stirring step. Further, the step of flowing the plastic fluid material Q into the third gap P3 is referred to as a first back side inflow stirring step, and the step of flowing the plastic fluid material Q into the fourth gap P4 is referred to as a second back side inflow stirring step. .
　第一表面側流入攪拌工程では、図５の（ｄ）に示すように、熱媒体用管４の流動方向Ｙ（図２参照）に対して左上側に形成された第一空隙部Ｐ１に、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを流入させる。流入攪拌用回転ツール５５は、例えば、工具鋼からなり、接合用回転ツール５０と同等の形状を有しており、円柱形のツール本体５６と、ツール本体５６の底面５７の中心部から同心軸で垂下するピン５８とを有する。流入攪拌用回転ツール５５は、接合用回転ツール５０よりも大型のものを使用している。 In the first surface side inflow stirring step, as shown in FIG. 5D, in the first gap P1 formed on the upper left side with respect to the flow direction Y of the heat medium pipe 4 (see FIG. 2), The plastic fluidized material Q plasticized by friction stirring is introduced. The inflow stirring rotary tool 55 is made of, for example, tool steel and has a shape equivalent to the joining rotary tool 50, and a concentric shaft is formed from the center of the cylindrical tool body 56 and the bottom surface 57 of the tool body 56. And a pin 58 that hangs down. The inflow stirring rotary tool 55 is larger than the joining rotary tool 50.
　第一表面側流入攪拌工程では、第二金属部材３の表面３ａで、高速回転する流入攪拌用回転ツール５５を押し込み、下方の第二凹溝６に沿って平面視Ｕ字状の軌跡となるように流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が第一空隙部Ｐ１と重なるように移動させる。このとき、高速回転するピン５８により、その周囲の第二金属部材３のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５が、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑは、第一空隙部Ｐ１に流入し、熱媒体用管４と接触する。 In the first surface side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed is pushed on the surface 3a of the second metal member 3, and a U-shaped trajectory in plan view is formed along the second concave groove 6 below. Thus, the inflow stirring rotary tool 55 is moved. The inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1. At this time, the aluminum alloy material of the surrounding second metal member 3 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P1 and contacts the heat medium pipe 4.
　ここで、図３の（ｂ）に示すように、熱媒体用管４の左右端及び上端は、第一凹溝５及び第二凹溝６と微細な隙間をあけて配置されているが、塑性流動材Ｑが第一空隙部Ｐ１に流れ込むと、塑性流動材Ｑの熱が熱媒体用管４に奪われるため流動性が低下する。したがって、第一空隙部Ｐ１に流入した塑性流動材Ｑは、第二空隙部Ｐ２及び第三空隙部Ｐ３には流入せずに、第一空隙部Ｐ１に留まって充填され、硬化する。 Here, as shown in (b) of FIG. 3, the left and right ends and the upper end of the heat medium pipe 4 are arranged with a fine gap between the first concave groove 5 and the second concave groove 6. When the plastic fluid material Q flows into the first gap P1, the heat of the plastic fluid material Q is taken away by the heat medium pipe 4, so that the fluidity is lowered. Therefore, the plastic fluid material Q that has flowed into the first gap P1 does not flow into the second gap P2 and the third gap P3, but remains in the first gap P1 to be filled and hardened.
　第二表面側流入攪拌工程では、図６の（ａ）に示すように、熱媒体用管４の流動方向Ｙ（図２参照）に対して右上側に形成された第二空隙部Ｐ２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２に行うことを除いては、第一表面側流入攪拌工程と同等であるため説明を省略する。なお、表面側流入攪拌工程が終了したら、第二金属部材３の表面３ａに形成されたバリを切削除去して表面３ａを平滑にするのが好ましい。 In the second surface-side inflow stirring step, as shown in FIG. 6A, the second gap P2 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 4 is rubbed. The plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof will be omitted. In addition, after the surface side inflow stirring process is complete | finished, it is preferable to cut and remove the burr | flash formed in the surface 3a of the 2nd metal member 3, and to make the surface 3a smooth.
　裏面側流入攪拌工程では、図６の（ｂ）及び（ｃ）に示すように、仮組構造体Ｕの表裏を逆にした後、第一金属部材２の裏面２ｂで第一凹溝５に沿って流入攪拌用回転ツール５５を移動させて第三空隙部Ｐ３及び第四空隙部Ｐ４に摩擦熱によって塑性流動化させた塑性流動材Ｑを流入させる。 In the back side inflow stirring step, as shown in FIGS. 6B and 6C, the front and back surfaces of the temporary assembly U are reversed, and then the first concave groove 5 is formed on the back side 2 b of the first metal member 2. The inflow agitating rotary tool 55 is moved along the flow path, and the plastic fluid material Q plastically fluidized by frictional heat is caused to flow into the third gap portion P3 and the fourth gap portion P4.
　第一裏面側流入攪拌工程では、図６の（ｂ）に示すように、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを第三空隙部Ｐ３に流入させる。第一裏面側流入攪拌工程では、第一金属部材２の裏面２ｂで高速回転する流入攪拌用回転ツール５５を押し込み、第一凹溝５に沿って平面視Ｕ字状の軌跡となるように流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が熱媒体用管４の第三空隙部Ｐ３と重なるように移動させる。このとき、高速回転するピン５８により、その周囲の第一金属部材２のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５が、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑは、第三空隙部Ｐ３に流入し、熱媒体用管４と接触する。 In the first back side inflow stirring step, as shown in FIG. 6B, the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the third gap P3. In the first back side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed on the back surface 2b of the first metal member 2 is pushed in, and flows along the first concave groove 5 so as to form a U-shaped trajectory in plan view. The stirring rotary tool 55 is moved. The inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the third gap P3 of the heat medium pipe 4. At this time, the aluminum alloy material of the surrounding first metal member 2 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the third gap P3 and contacts the heat medium pipe 4.
　第二裏面側流入攪拌工程では、図６の（ｃ）に示すように、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを第四空隙部Ｐ４に流入させる。第二裏面側流入攪拌工程は、第四空隙部Ｐ４に行うことを除いては、第一裏面側流入攪拌工程と同等であるため、説明を省略する。裏面側流入攪拌工程が終了したら、第一金属部材２の裏面２ｂに形成されたバリを切削除去して裏面２ｂを平滑にするのが好ましい。 In the second back side inflow stirring step, as shown in FIG. 6C, the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the fourth gap P4. The second back-side inflow stirring process is the same as the first back-side inflow stirring process except that the second back-side inflow stirring process is performed in the fourth gap P4, and thus the description thereof is omitted. When the back side inflow stirring step is completed, it is preferable to cut and remove burrs formed on the back surface 2b of the first metal member 2 to make the back surface 2b smooth.
　なお、表面側流入攪拌工程及び裏面側流入攪拌工程では、第一空隙部Ｐ１～第四空隙部Ｐ４の形状や大きさ等に基づいて、流入攪拌用回転ツール５５の押込み量及び挿入位置等を設定する。熱媒体用管４がつぶれない程度に、流入攪拌用回転ツール５５を近づけて、第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを隙間なく流入させることが好ましい。 In the front side inflow agitation step and the back side inflow agitation step, the pushing amount and insertion position of the inflow agitation rotating tool 55 are determined based on the shape and size of the first gap portion P1 to the fourth gap portion P4. Set. It is preferable that the inflow and stirring rotary tool 55 is brought close to the heat medium pipe 4 so that the heat medium pipe 4 is not crushed, and the plastic fluid material Q flows into the first gap part P1 to the fourth gap part P4 without any gaps.
　例えば、図７に示すように、流入攪拌用回転ツール５５のピン５８の先端を、第二凹溝６の天面６ｃ（裏面側流入攪拌工程の場合は第一凹溝５の底面５ｃ）よりも深く挿入することが好ましい。また、流入攪拌用回転ツール５５のピン５８の先端と、熱媒体用管４に接する仮想鉛直面との最近接距離Ｌが１～３ｍｍであることが好ましい。これにより、熱媒体用管４を潰さない程度に第一空隙部Ｐ１に塑性流動材Ｑを確実に流入させることができる。最近接距離Ｌが１ｍｍより小さいと、流入攪拌用回転ツール５５が熱媒体用管４に近すぎて、熱媒体用管４が潰れる可能性がある。また、最近接距離Ｌが３ｍｍより大きいと、第一空隙部Ｐ１に塑性流動材Ｑが流入しない可能性がある。 For example, as shown in FIG. 7, the tip of the pin 58 of the inflow agitation rotating tool 55 is connected to the top surface 6c of the second groove 6 (in the case of the back side inflow agitation step, the bottom surface 5c of the first groove 5). It is preferable to insert deeply. In addition, it is preferable that the closest distance L between the tip of the pin 58 of the rotating tool 55 for agitation and the virtual vertical plane in contact with the heat medium pipe 4 is 1 to 3 mm. Thereby, the plastic fluidized material Q can be surely flowed into the first gap P1 to such an extent that the heat medium pipe 4 is not crushed. If the closest distance L is smaller than 1 mm, the inflow stirring rotary tool 55 is too close to the heat medium tube 4 and the heat medium tube 4 may be crushed. If the closest distance L is greater than 3 mm, the plastic fluid material Q may not flow into the first gap P1.
　また、流入攪拌用回転ツール５５の押込み量（押込み長さ）は、例えば第一表面側流入攪拌工程において、ツール本体５６が押し退ける第二金属部材３（又は第一金属部材２）の金属の体積が、第一空隙部Ｐ１に充填される塑性流動化されたアルミニウム合金材料の体積、及び塑性化領域Ｗ３の幅方向両側に発生するバリの体積との和と同等になるような長さとなっている。 The indentation amount (indentation length) of the inflow stirring rotary tool 55 is, for example, the volume of the metal of the second metal member 3 (or the first metal member 2) from which the tool body 56 is pushed away in the first surface side inflow stirring process. Is a length equivalent to the sum of the volume of the plastic fluidized aluminum alloy material filled in the first gap P1 and the volume of burrs generated on both sides in the width direction of the plasticized region W3. Yes.
　以上説明した伝熱板の製造方法によれば、第一金属部材２の表面２ａに形成された第一凹溝５と、第二金属部材３の裏面３ｂに形成された第二凹溝６からなる空間部Ｋにおいて、空間部Ｋの幅及び高さを熱媒体用管４の外径よりも大きく形成したため、熱媒体用管４の一部が湾曲している場合であっても、前記した挿入工程及び配置工程を容易に行うことができる。 According to the heat transfer plate manufacturing method described above, from the first groove 5 formed on the front surface 2 a of the first metal member 2 and the second groove 6 formed on the back surface 3 b of the second metal member 3. In the space portion K to be formed, the width and height of the space portion K are formed larger than the outer diameter of the heat medium tube 4, so that even when a part of the heat medium tube 4 is curved, it is described above. An insertion process and an arrangement process can be easily performed.
　また、表面側流入攪拌工程及び裏面側流入攪拌工程により、熱媒体用管４の周囲に形成された第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板１の熱交換効率を高めることができる。 Further, the plastic fluid material Q is caused to flow into the first gap portion P1 to the fourth gap portion P4 formed around the heat medium pipe 4 by the front-side inflow stirring step and the back-side inflow stirring step, so that the gap Since the portion can be filled, the heat exchange efficiency of the heat transfer plate 1 can be increased.
　また、本実施形態によれば、表面側流入攪拌工程の前に、比較的小さい接合用回転ツール５０を用いて、第一金属部材２と第二金属部材３とを接合しているので、表面側流入攪拌工程では、第一金属部材２と第二金属部材３とが確実に固定された状態で摩擦攪拌を行うことができる。したがって、比較的大きい流入攪拌用回転ツール５５を用いて大きい押込み力が作用する摩擦攪拌接合を、安定した状態で行うことができる。 Moreover, according to this embodiment, since the 1st metal member 2 and the 2nd metal member 3 are joined using the comparatively small joining rotary tool 50 before the surface side inflow stirring process, In the side inflow stirring step, friction stirring can be performed in a state where the first metal member 2 and the second metal member 3 are securely fixed. Therefore, the friction stir welding in which a large pushing force is applied using the relatively large inflow stirring rotary tool 55 can be performed in a stable state.
　なお、本実施形態では、接合工程の後に表面側流入攪拌工程を行っているが、表面側流入攪拌工程の後に接合工程を行うようにしてもよい。このとき、第一金属部材２及び第二金属部材３を幅方向及び長手方向から図示しない治具を用いて固定しておけば、表面側流入攪拌工程における摩擦攪拌を安定した状態で行うことができる。 In addition, in this embodiment, although the surface side inflow stirring process is performed after a joining process, you may make it perform a joining process after a surface side inflow stirring process. At this time, if the first metal member 2 and the second metal member 3 are fixed from the width direction and the longitudinal direction using a jig (not shown), the friction stirring in the surface side inflow stirring step can be performed in a stable state. it can.
　また、本実施形態では、接合工程において、突合部Ｖ１，Ｖ２の全長に亘って、摩擦攪拌接合を施しているが、これに限定されるものではなく、突合部Ｖ１，Ｖ２に沿って所定の間隔を隔てて摩擦攪拌接合を断続的に行ってもよい。このような伝熱板の製造方法によれば、接合工程に要する手間と時間を低減することができる。 Further, in the present embodiment, the friction stir welding is performed over the entire length of the abutting portions V1 and V2 in the joining step, but the present invention is not limited to this, and a predetermined amount is provided along the abutting portions V1 and V2. Friction stir welding may be performed intermittently at intervals. According to such a method for manufacturing a heat transfer plate, labor and time required for the joining process can be reduced.
　また、本実施形態では、空間部Ｋの幅及び高さの両方を熱媒体用管４の外径よりも大きく形成しているが、いずれか一方を大きく形成すればよい。また、熱媒体用管４の断面形状は本実施形態では円形としているが、他の形状であってもよい。また、熱媒体用管４の平面視形状を本実施形態ではＵ字状としているが、例えば直線形状、蛇行形状あるいは円形状としてもよい。また、前記した第一凹溝５及び第二凹溝６の幅や深さ寸法はあくまで例示であって、本発明を限定するものではない。例えば、熱媒体用管４の平面視の形状が複雑になる場合は、それに伴って第一凹溝５及び第二凹溝６の幅や深さを適宜大きくしてもよい。また、本実施形態では、第一金属部材２に熱媒体用管４及び第二金属部材３を配置するようにしたが、これに限定されるものではない。例えば、第二金属部材３の第二凹溝６に熱媒体用管４を挿入した後、第二金属部材３の上方から第一金属部材２を覆うように配置してもよい。また、本実施形態では、接合工程を省略してもよい。つまり、流入攪拌工程において、第一金属部材２と第二金属部材３とを一体化することができる。 In the present embodiment, both the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 4, but either one may be formed larger. Moreover, although the cross-sectional shape of the heat medium pipe 4 is circular in this embodiment, other shapes may be used. In addition, the shape of the heat medium pipe 4 in plan view is U-shaped in the present embodiment, but may be, for example, a linear shape, a meandering shape, or a circular shape. Further, the width and depth dimensions of the first concave groove 5 and the second concave groove 6 described above are merely examples, and do not limit the present invention. For example, when the shape of the heat medium pipe 4 in a plan view becomes complicated, the width and depth of the first concave groove 5 and the second concave groove 6 may be appropriately increased accordingly. In the present embodiment, the heat medium pipe 4 and the second metal member 3 are arranged on the first metal member 2, but the present invention is not limited to this. For example, the heat medium pipe 4 may be inserted into the second concave groove 6 of the second metal member 3 and then disposed so as to cover the first metal member 2 from above the second metal member 3. In the present embodiment, the joining step may be omitted. That is, in the inflow stirring step, the first metal member 2 and the second metal member 3 can be integrated.
[第二実施形態]
　次に、本発明の第二実施形態について説明する。第二実施形態に係る伝熱板の製造方法は、裏面側流入攪拌工程を行っていない点などで第一実施形態と相違する。なお、具体的な図示はしないが、熱媒体用管４は、第一実施形態と同様に平面視Ｕ字状を呈するものとする。 [Second Embodiment]
Next, a second embodiment of the present invention will be described. The manufacturing method of the heat exchanger plate which concerns on 2nd embodiment is different from 1st embodiment by the point which is not performing the back surface side inflow stirring process. Although not specifically illustrated, it is assumed that the heat medium pipe 4 has a U-shape in plan view as in the first embodiment.
　第二実施形態に係る伝熱板の製造方法は、図８及び図９に示すように、第一金属部材１２及び第二金属部材１３を形成するとともに、第一金属部材１２に熱媒体用管４及び第二金属部材１３を配置する準備工程と、突合部Ｖ１，Ｖ２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材１３の表面１３ａで、流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑを流入させる表面側流入攪拌工程を含むものである。 As shown in FIGS. 8 and 9, the heat transfer plate manufacturing method according to the second embodiment forms the first metal member 12 and the second metal member 13, and the heat medium pipe on the first metal member 12. 4 and the second metal member 13, a preparatory step, a joining step of moving the joining rotary tool 50 along the abutting portions V 1, V 2 to perform friction stir welding, and a surface 13 a of the second metal member 13, This includes a front-side inflow agitation step in which the inflow agitation rotating tool 55 is moved to cause the plastic fluid material Q to flow into the first gap P1 and the second gap P2.
　（準備工程）
　準備工程は、第一金属部材１２及び第二金属部材１３を形成する切削工程と、第一金属部材１２に形成された第一凹溝１５に熱媒体用管４を挿入する挿入工程と、第一金属部材１２に第二金属部材１３を配置する配置工程を含む。 (Preparation process)
The preparation process includes a cutting process for forming the first metal member 12 and the second metal member 13, an insertion process for inserting the heat medium pipe 4 into the first groove 15 formed in the first metal member 12, The arrangement | positioning process which arrange | positions the 2nd metal member 13 in the one metal member 12 is included.
　切削工程では、図８の（ａ）に示すように、公知の切削加工により、板厚部材に断面視Ｕ字状を呈する第一凹溝１５を切り欠いて第一金属部材１２を形成する。第一凹溝１５の底部１５ａは円弧状に切り欠かれており、熱媒体用管４の外周面と同等の曲率で形成されている。第一凹溝１５の深さは、熱媒体用管４の外径よりも小さく形成されており、第一凹溝１５の幅は熱媒体用管４の外径と略同等に形成されている。 In the cutting step, as shown in FIG. 8A, the first metal member 12 is formed by notching the first concave groove 15 having a U-shaped cross-sectional view in the plate thickness member by a known cutting process. The bottom portion 15 a of the first concave groove 15 is cut out in an arc shape and is formed with the same curvature as the outer peripheral surface of the heat medium pipe 4. The depth of the first groove 15 is formed smaller than the outer diameter of the heat medium pipe 4, and the width of the first groove 15 is formed substantially equal to the outer diameter of the heat medium pipe 4. .
　次に、公知の切削加工により、板厚部材に断面視矩形を呈する第二凹溝１６を切り欠いて第二金属部材１３を形成する。第二凹溝１６の幅は、熱媒体用管４の外径と略同等に形成されている。また、第二凹溝１６の深さは、図８の（ｂ）に示すように、第一金属部材１２に熱媒体用管４及び第二金属部材１３を配置したときに、第二凹溝１６の天面１６ｃと熱媒体用管４とが微細な隙間をあけて離間するように形成されている。 Next, the second metal member 13 is formed by notching the second concave groove 16 having a rectangular cross-sectional view in the plate thickness member by a known cutting process. The width of the second concave groove 16 is formed substantially equal to the outer diameter of the heat medium pipe 4. Further, as shown in FIG. 8B, the depth of the second groove 16 is the second groove when the heat medium pipe 4 and the second metal member 13 are arranged on the first metal member 12. The 16 top surfaces 16c and the heat medium pipe 4 are formed so as to be separated from each other with a fine gap.
　挿入工程では、図８の（ｂ）に示すように、第一凹溝１５に熱媒体用管４を挿入する。このとき、熱媒体用管４の下半部は、第一凹溝１５の底部１５ａと面接触する。なお、熱媒体用管４を第一凹溝１５に挿入すると、熱媒体用管４の上端は、第一金属部材１２の表面１２ａよりも上方に位置する。 In the insertion step, the heat medium pipe 4 is inserted into the first groove 15 as shown in FIG. At this time, the lower half of the heat medium pipe 4 is in surface contact with the bottom 15 a of the first groove 15. When the heat medium pipe 4 is inserted into the first concave groove 15, the upper end of the heat medium pipe 4 is positioned above the surface 12 a of the first metal member 12.
　配置工程では、図８の（ｂ）に示すように、熱媒体用管４の上部を第二金属部材１３に形成された第二凹溝１６に挿入しつつ、第一金属部材１２に第二金属部材１３を配置する。このとき、熱媒体用管４と、第二金属部材１３に形成された第二凹溝１６の両立面１６ａ，１６ｂ及び天面１６ｃとは微細な隙間をあけて離間する。即ち、第一凹溝１５と第二凹溝１６とで形成された空間部Ｋ１の幅は、熱媒体用管４の外径と略同等に形成されており、空間部Ｋ１の高さＨは、熱媒体用管４の外径よりも大きく形成されている。 In the arranging step, as shown in FIG. 8B, the upper portion of the heat medium pipe 4 is inserted into the second concave groove 16 formed in the second metal member 13, while the second metal member 12 is inserted into the second metal member 12. A metal member 13 is disposed. At this time, the heat medium pipe 4 and the compatible surfaces 16 a and 16 b and the top surface 16 c of the second concave groove 16 formed in the second metal member 13 are separated from each other with a fine gap. That is, the width of the space portion K1 formed by the first groove 15 and the second groove 16 is formed substantially equal to the outer diameter of the heat medium pipe 4, and the height H of the space K1 is The outer diameter of the heat medium pipe 4 is larger.
　ここで、空間部Ｋ１において、熱媒体用管４の周囲に形成される空隙部のうち、流動方向Ｙ（図２参照）に対して左上側に形成される部分を第一空隙部Ｐ１とし、右上に形成される部分を第二空隙部Ｐ２とする。 Here, in the space portion K1, the portion formed on the upper left side with respect to the flow direction Y (see FIG. 2) among the space portions formed around the heat medium pipe 4 is defined as the first space portion P1. A portion formed in the upper right is defined as a second gap portion P2.
　（接合工程）
　接合工程では、図９の（ａ）に示すように、第一金属部材１２と第二金属部材１３との突合せ部である突合部Ｖ１，Ｖ２（図８の（ｂ）参照）に沿って接合用回転ツール５０を用いて摩擦攪拌接合を行う。これにより、第一金属部材１２と第二金属部材１３とを接合することができる。 (Joining process)
In the joining step, as shown in FIG. 9A, joining is performed along the abutting portions V1 and V2 (see FIG. 8B) which are the abutting portions of the first metal member 12 and the second metal member 13. Friction stir welding is carried out using the rotary tool 50 for use. Thereby, the 1st metal member 12 and the 2nd metal member 13 can be joined.
　（表面側流入攪拌工程）
　表面側流入攪拌工程では、図９の（ｂ）及び（ｃ）に示すように、第二金属部材１３の表面１３ａから第二凹溝１６に沿って摩擦攪拌を行う。表面側流入攪拌工程は、本実施形態では、第一空隙部Ｐ１に塑性流動材Ｑを流入させる第一表面側流入攪拌工程と、第二空隙部Ｐ２に塑性流動材Ｑを流入させる第二表面側流入攪拌工程とを含む。 (Surface-side inflow stirring process)
In the surface side inflow stirring step, friction stirring is performed along the second concave groove 16 from the surface 13a of the second metal member 13 as shown in FIGS. In the present embodiment, the surface-side inflow stirring step is a first surface-side inflow stirring step for causing the plastic fluid material Q to flow into the first gap P1, and a second surface for causing the plastic fluid material Q to flow into the second gap P2. Side inflow stirring step.
　第一表面側流入攪拌工程では、第二金属部材１３の表面１３ａから高速回転する流入攪拌用回転ツール５５を押し込み、第二凹溝１６に沿って平面視Ｕ字状を呈するように、流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が第一空隙部Ｐ１と重なるように移動させる。 In the first surface side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed from the surface 13a of the second metal member 13 is pushed in, and the inflow agitation is formed so as to exhibit a U shape in plan view along the second concave groove 16. The rotary tool 55 is moved. The inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1.
　このとき、高速回転するピン５８により、その周囲の第一金属部材１２及び第二金属部材１３のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。第二実施形態では、流入攪拌用回転ツール５５の先端が、第一金属部材１２と第二金属部材１３との突合部Ｖ（Ｖ１，Ｖ２）よりも下方に位置するように押し込まれているため、塑性流動化された塑性流動材Ｑは、第一空隙部Ｐ１に確実に流入し熱媒体用管４と接触する。 At this time, the aluminum alloy material of the surrounding first metal member 12 and second metal member 13 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. In the second embodiment, the tip of the inflow stirring rotary tool 55 is pushed so as to be positioned below the abutting portion V (V1, V2) between the first metal member 12 and the second metal member 13. The plastic fluidized material Q plastically fluidized surely flows into the first gap P1 and comes into contact with the heat medium pipe 4.
　ここで、図９の（ｂ）に示すように、熱媒体用管４の上端は、第二凹溝１６と微細な隙間をあけて配置されているが、塑性流動材Ｑが第一空隙部Ｐ１に流れ込むと、塑性流動材Ｑの熱が熱媒体用管４に奪われるため流動性が低下する。したがって、塑性流動材Ｑは、第二空隙部Ｐ２には流入せずに、第一空隙部Ｐ１に留まって充填され、硬化する。 Here, as shown in FIG. 9 (b), the upper end of the heat medium pipe 4 is arranged with a minute gap from the second concave groove 16, but the plastic fluid material Q is in the first gap portion. When flowing into P1, the heat of the plastic fluidized material Q is taken away by the heat medium pipe 4, so that the fluidity is lowered. Therefore, the plastic fluid material Q does not flow into the second gap P2, but remains in the first gap P1 and is filled and cured.
　第二表面側流入攪拌工程では、図９の（ｃ）に示すように、熱媒体用管４の流動方向Ｙ（図２参照）に対して右上側に形成された第二空隙部Ｐ２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２に行うことを除いては、第一表面側流入攪拌工程と同等であるため説明を省略する。なお、表面側流入攪拌工程が終了したら、第二金属部材１３の表面１３ａに形成されたバリを切削除去して表面１３ａを平滑にするのが好ましい。 In the second surface side inflow stirring step, as shown in FIG. 9C, the second gap P2 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 4 (see FIG. 2) is rubbed. The plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof will be omitted. In addition, after the surface side inflow stirring process is complete | finished, it is preferable to cut and remove the burr | flash formed in the surface 13a of the 2nd metal member 13, and to make the surface 13a smooth.
　以上説明した伝熱板の製造方法によれば、第一金属部材１２に形成された第一凹溝１５と、第二金属部材１３に形成された第二凹溝１６からなる空間部Ｋ１において、空間部Ｋ１の高さを熱媒体用管４の外径よりも大きく形成したため、熱媒体用管４の一部が湾曲している場合であっても、前記した配置工程を容易に行うことができる。
　また、表面側流入攪拌工程により、熱媒体用管４の周囲に形成された第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板の熱交換効率を高めることができる。 According to the heat transfer plate manufacturing method described above, in the space portion K1 including the first concave groove 15 formed in the first metal member 12 and the second concave groove 16 formed in the second metal member 13, Since the height of the space K1 is formed to be larger than the outer diameter of the heat medium pipe 4, the arrangement step described above can be easily performed even when a part of the heat medium pipe 4 is curved. it can.
Further, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P1 and the second void portion P2 formed around the heat medium pipe 4 by the surface side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate can be increased.
　なお、本実施形態では、第一凹溝１５の幅を熱媒体用管４の外径と略同等に形成したが、これに限定されるものではなく、第一凹溝１５の幅を熱媒体用管４の外径よりも大きく形成してもよい。また、第一凹溝１５の底部１５ａの曲率を熱媒体用管４の曲率よりも小さくなるように形成してもよい。これにより、熱媒体用管４を挿入する挿入工程や、第二金属部材１３を配置する配置工程を容易に行うことができる。 In the present embodiment, the width of the first concave groove 15 is formed to be approximately equal to the outer diameter of the heat medium pipe 4, but the present invention is not limited to this. You may form larger than the outer diameter of the pipe 4 for work. Moreover, you may form so that the curvature of the bottom part 15a of the 1st ditch | groove 15 may become smaller than the curvature of the pipe | tube 4 for heat media. Thereby, the insertion process which inserts the pipe | tube 4 for heat media, and the arrangement | positioning process which arrange | positions the 2nd metal member 13 can be performed easily.
[第三実施形態]
　次に、本発明の第三実施形態について説明する。第三実施形態に係る伝熱板の製造方法は、第一凹溝２５及び第二凹溝２６が共に曲面で形成されている点で第一実施形態と相違する。なお、具体的な図示はしないが、熱媒体用管４は、第一実施形態と同様に平面視Ｕ字状を呈するものとする。 [Third embodiment]
Next, a third embodiment of the present invention will be described. The manufacturing method of the heat exchanger plate according to the third embodiment is different from the first embodiment in that both the first concave groove 25 and the second concave groove 26 are formed with curved surfaces. Although not specifically illustrated, it is assumed that the heat medium pipe 4 has a U-shape in plan view as in the first embodiment.
　第三実施形態に係る伝熱板の製造方法は、図１０に示すように、第一金属部材２２及び第二金属部材２３を形成するとともに、第一金属部材２２に熱媒体用管４及び第二金属部材２３を配置する準備工程と、突合部Ｖ１，Ｖ２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材２３の表面２３ａで、第二凹溝２６に沿って流入攪拌用回転ツール５５を移動させて熱媒体用管４の周囲に形成された第一空隙部Ｐ１及び第二空隙部Ｐ２に摩擦熱によって塑性流動化させた塑性流動材Ｑを流入させる表面側流入攪拌工程を含むものである。 As shown in FIG. 10, the heat transfer plate manufacturing method according to the third embodiment forms the first metal member 22 and the second metal member 23, and the heat medium pipe 4 and the first metal member 22 on the first metal member 22. In the preparation step of arranging the two metal members 23, the joining step of moving the joining rotary tool 50 along the abutting portions V1 and V2 to perform friction stir welding, and the surface 23a of the second metal member 23, the second concave The plastic fluidized material Q is obtained by moving the inflow stirring rotary tool 55 along the groove 26 and plastically fluidizing the first gap P1 and the second gap P2 formed around the heat medium pipe 4 by frictional heat. Including a surface-side inflow agitation step.
　（準備工程）
　準備工程は、第一金属部材２２及び第二金属部材２３を形成する切削工程と、第一金属部材２２に形成された第一凹溝２５に熱媒体用管４を挿入する挿入工程と、第一金属部材２２に第二金属部材２３を配置する配置工程を含む。 (Preparation process)
The preparation step includes a cutting step for forming the first metal member 22 and the second metal member 23, an insertion step for inserting the heat medium pipe 4 into the first concave groove 25 formed in the first metal member 22, and a first step The arrangement | positioning process which arrange | positions the 2nd metal member 23 to the one metal member 22 is included.
　切削工程では、図１０の（ａ）に示すように、公知の切削加工により、板厚部材に断面視半円形状を呈する第一凹溝２５を切り欠いて第一金属部材２２を形成する。第一凹溝２５の半径は、熱媒体用管４の半径と同等に形成されている。
　また、同様に板厚部材に断面視矩形を呈する第二凹溝２６を切り欠いて第二金属部材２３を形成する。第二凹溝２６は、下方に向けて開口しており、開口部の幅は、熱媒体用管４の外径と略同等に形成されている。また、第二凹溝２６の天面２６ｃの曲率は、熱媒体用管４の曲率よりも大きくなるように形成されている。 In the cutting process, as shown in FIG. 10A, the first metal member 22 is formed by notching the first concave groove 25 having a semicircular shape in cross section in the plate thickness member by a known cutting process. The radius of the first concave groove 25 is formed to be equal to the radius of the heat medium pipe 4.
Similarly, the second metal member 23 is formed by cutting out the second concave groove 26 having a rectangular shape in cross section in the plate thickness member. The second concave groove 26 is opened downward, and the width of the opening is formed substantially equal to the outer diameter of the heat medium pipe 4. Further, the curvature of the top surface 26 c of the second concave groove 26 is formed so as to be larger than the curvature of the heat medium pipe 4.
　挿入工程では、図１０の（ｂ）に示すように、第一凹溝２５に熱媒体用管４の下半部を挿入する。熱媒体用管４の下半部は、第一凹溝２５に面接触する。 In the insertion step, the lower half of the heat medium pipe 4 is inserted into the first concave groove 25 as shown in FIG. The lower half of the heat medium pipe 4 is in surface contact with the first concave groove 25.
　配置工程では、図１０の（ｂ）に示すように、熱媒体用管４の上半部を第二金属部材２３に形成された第二凹溝２６に挿入しつつ、第一金属部材２２に第二金属部材２３を配置する。第一凹溝２５と第二凹溝２６とを重ね合わせて形成された空間部Ｋ２の高さＨは、熱媒体用管４の外径よりも大きくなるように形成されている。
　ここで、熱媒体用管４の周囲に形成される空隙部のうち、流動方向Ｙ（図２参照）に対して左上側に形成される部分を第一空隙部Ｐ１とし、右上側に形成される部分を第二空隙部Ｐ２とする。 In the arrangement step, as shown in FIG. 10B, the upper half of the heat medium pipe 4 is inserted into the second concave groove 26 formed in the second metal member 23, and the first metal member 22 is inserted. The second metal member 23 is disposed. The height H of the space K2 formed by overlapping the first concave groove 25 and the second concave groove 26 is formed to be larger than the outer diameter of the heat medium pipe 4.
Here, of the gap formed around the heat medium pipe 4, the portion formed on the upper left side with respect to the flow direction Y (see FIG. 2) is defined as the first gap P1, and is formed on the upper right side. This portion is defined as a second gap portion P2.
　（接合工程）
　次に、図１０の（ｂ）に示すように、接合用回転ツール５０（図５参照）を用いて突合部Ｖ１，Ｖ２に沿って摩擦攪拌接合を行う。これにより、第一金属部材２２と第二金属部材２３とを接合することができる。 (Joining process)
Next, as shown in FIG. 10B, friction stir welding is performed along the abutting portions V <b> 1 and V <b> 2 by using a welding rotary tool 50 (see FIG. 5). Thereby, the 1st metal member 22 and the 2nd metal member 23 can be joined.
　（表面側流入攪拌工程）
　次に、図１０の（ｃ）に示すように、第二金属部材２３の表面２３ａから第二凹溝２６に沿って摩擦攪拌を行う。表面側流入攪拌工程は、本実施形態では、第一空隙部Ｐ１に塑性流動材Ｑを流入させる第一表面側流入攪拌工程と、第二空隙部Ｐ２に塑性流動材Ｑを流入させる第二表面側流入攪拌工程とを含む。 (Surface-side inflow stirring process)
Next, as shown in FIG. 10C, friction stirring is performed along the second concave groove 26 from the surface 23 a of the second metal member 23. In the present embodiment, the surface-side inflow stirring step is a first surface-side inflow stirring step for causing the plastic fluid material Q to flow into the first gap P1, and a second surface for causing the plastic fluid material Q to flow into the second gap P2. Side inflow stirring step.
　第一表面側流入攪拌工程における摩擦攪拌では、第二金属部材２３の表面２３ａから高速回転する流入攪拌用回転ツール５５を押し込み、第二凹溝２６に沿って平面視Ｕ字状を呈するように、流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が第一空隙部Ｐ１と重なるように移動する。このとき、高速回転するピン５８により、その周囲の第二金属部材２３のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５は、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑが第一空隙部Ｐ１に流入し熱媒体用管４と接触する。 In the friction agitation in the first surface side inflow agitation step, the rotation tool 55 for inflow agitation that rotates at high speed is pushed from the surface 23a of the second metal member 23 so as to exhibit a U shape in plan view along the second groove 26. Then, the rotating tool 55 for inflow stirring is moved. The inflow stirring rotary tool 55 moves so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the first gap P1. At this time, the aluminum alloy material of the surrounding second metal member 23 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P1 and contacts the heat medium pipe 4.
　第二表面側流入攪拌工程では、熱媒体用管４の流動方向Ｙ（図２参照）に対して右上側に形成された第二空隙部Ｐ２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２に行うことを除いては、第一表面側流入攪拌工程と同等であるため、説明を省略する。表面側流入攪拌工程が終了したら、第二金属部材２３の表面２３ａに形成されたバリを切削除去して平滑にするのが好ましい。 In the second surface side inflow stirring step, the plastic fluid material Q plastically fluidized by friction stirring in the second gap P2 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 4. Inflow. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P2, description thereof is omitted. When the front-side inflow stirring step is completed, it is preferable that the burrs formed on the surface 23a of the second metal member 23 are cut and removed to be smooth.
　以上説明した伝熱板の製造方法によれば、第一凹溝２５及び第二凹溝２６をともに曲面となるように形成しても、第一凹溝２５と第二凹溝２６とで形成される空間部Ｋ２の高さＨを熱媒体用管４の外径よりも大きく形成しているため、熱媒体用管４の一部が湾曲している場合であっても、前記した配置工程を容易に行うことができる。
　また、表面側流入攪拌工程により、熱媒体用管４の周囲に形成された第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板の熱交換効率を高めることができる。 According to the method for manufacturing a heat transfer plate described above, even if the first concave groove 25 and the second concave groove 26 are both formed to be curved surfaces, the first concave groove 25 and the second concave groove 26 are formed. Since the height H of the space portion K2 to be formed is larger than the outer diameter of the heat medium pipe 4, even if the heat medium pipe 4 is partially curved, the arrangement step described above Can be easily performed.
Further, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P1 and the second void portion P2 formed around the heat medium pipe 4 by the surface side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate can be increased.
[第四実施形態]
　次に、本発明の第四実施形態について説明する。第四実施形態に係る伝熱板の製造方法は、第二金属部材に凹溝が形成されていない点で第一実施形態と相違する。なお、具体的な図示はしないが、熱媒体用管４は、第一実施形態と同様に平面視Ｕ字状を呈するものとする。 [Fourth embodiment]
Next, a fourth embodiment of the present invention will be described. The manufacturing method of the heat exchanger plate which concerns on 4th embodiment differs from 1st embodiment by the point by which the ditch | groove is not formed in the 2nd metal member. Although not specifically illustrated, it is assumed that the heat medium pipe 4 has a U-shape in plan view as in the first embodiment.
　第四実施形態に係る伝熱板の製造方法は、図１１に示すように、第一金属部材３２及び第二金属部材３３を形成するとともに、第一金属部材３２に第二金属部材３３を配置する準備工程と、突合部Ｖ１，Ｖ２に沿って接合用回転ツール５０（図５参照）を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材３３の表面３３ａ側及び第一金属部材３２の裏面３２ｂから流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを流入させる流入攪拌工程とを含む。 As shown in FIG. 11, the method for manufacturing a heat transfer plate according to the fourth embodiment forms the first metal member 32 and the second metal member 33 and arranges the second metal member 33 on the first metal member 32. A preparatory process, a joining process of moving the joining rotary tool 50 (see FIG. 5) along the abutting portions V1 and V2 to perform friction stir welding, the surface 33a side of the second metal member 33, and the first metal member The inflow stirring step of moving the inflow stirring rotary tool 55 from the back surface 32b of the base plate 32 and causing the plastic fluid material Q to flow into the first gap portion P1 to the fourth gap portion P4.
　（準備工程）
　準備工程は、第一金属部材３２及び第二金属部材３３を形成する切削工程と、第一金属部材３２に形成された第一凹溝３５に熱媒体用管４を挿入する挿入工程と、第一金属部材３２に第二金属部材３３を配置する配置工程を含む。 (Preparation process)
The preparation step includes a cutting step for forming the first metal member 32 and the second metal member 33, an insertion step for inserting the heat medium pipe 4 into the first concave groove 35 formed in the first metal member 32, and a first step The arrangement | positioning process which arrange | positions the 2nd metal member 33 to the one metal member 32 is included.
　切削工程では、図１１の（ａ）に示すように、公知の切削加工により、板厚部材に断面視矩形の第一凹溝３５を切り欠いて第一金属部材３２を形成する。第一凹溝３５の深さは、熱媒体用管４の外径の１．１倍に形成されている。また、第一凹溝３５の幅は、熱媒体用管４の外径の１．１倍に形成されている。 In the cutting process, as shown in FIG. 11A, the first metal member 32 is formed by cutting out the first concave groove 35 having a rectangular cross-sectional view in the plate thickness member by a known cutting process. The depth of the first groove 35 is 1.1 times the outer diameter of the heat medium pipe 4. The width of the first groove 35 is 1.1 times the outer diameter of the heat medium pipe 4.
　挿入工程では、図１１の（ｂ）に示すように、第一金属部材３２の第一凹溝３５に熱媒体用管４を挿入する。 In the insertion step, the heat medium pipe 4 is inserted into the first concave groove 35 of the first metal member 32 as shown in FIG.
　配置工程では、図１１の（ｂ）に示すように、第一金属部材３２の上方に第二金属部材３３を配置する。第一凹溝３５と第二金属部材３３の底面（下面）３３ｂとで形成された空間部Ｋ３に、熱媒体用管４が配置される。この際、図１１の（ｂ）に示すように、熱媒体用管４の下端は、第一凹溝３５の底面３５ｃと接触し、上端は、第二金属部材３３の底面３３ｂと離間する。 In the arranging step, the second metal member 33 is arranged above the first metal member 32 as shown in FIG. The heat medium pipe 4 is disposed in a space K3 formed by the first concave groove 35 and the bottom surface (lower surface) 33b of the second metal member 33. At this time, as shown in FIG. 11B, the lower end of the heat medium pipe 4 is in contact with the bottom surface 35 c of the first groove 35, and the upper end is separated from the bottom surface 33 b of the second metal member 33.
　（接合工程）
　接合工程では、図１１の（ｂ）及び（ｃ）に示すように、突合部Ｖ１，Ｖ２に沿って接合用回転ツール５０（図５参照）を用いて摩擦攪拌接合を行う。接合工程については、前記した第一実施形態の接合工程と同様であるため詳細な説明を省略する。 (Joining process)
In the joining step, as shown in FIGS. 11B and 11C, friction stir welding is performed using the joining rotary tool 50 (see FIG. 5) along the abutting portions V1 and V2. Since the joining process is the same as the joining process of the first embodiment described above, detailed description thereof is omitted.
　（流入攪拌工程）
　流入攪拌工程では、第一金属部材３２、熱媒体用管４及び第二金属部材３３からなる仮組構造体Ｕの表面及び裏面から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ１～第四空隙部Ｐ４に塑性流動材Ｑを流入させる。
　流入攪拌工程については第一実施形態に係る流入攪拌工程と略同等であるため詳細な説明を省略する (Inflow stirring process)
In the inflow agitation step, the inflow agitation rotating tool 55 is moved from the front and back surfaces of the temporary assembly U composed of the first metal member 32, the heat medium pipe 4 and the second metal member 33, and the first gap P1- The plastic fluid material Q is caused to flow into the fourth gap P4.
Since the inflow stirring process is substantially the same as the inflow stirring process according to the first embodiment, detailed description thereof is omitted.
　以上説明した第四実施形態に係る製造方法によれば、第二金属部材３３に凹溝を設けず、第一金属部材３２のみに第一凹溝３５を設ける場合であっても、第一凹溝３５の幅及び深さを熱媒体用管４の外径より大きく形成することで、第一実施形態と略同等の効果を得ることができる。また、第二金属部材３３には、第二凹溝を形成する必要がないため、作業手間を省くことができる。また、配置工程では、第二金属部材３３に第二凹溝を形成しない分、配置作業が容易になる。 According to the manufacturing method according to the fourth embodiment described above, even if the first metal groove 32 is provided only in the first metal member 32 without providing the groove in the second metal member 33, the first groove By forming the width and depth of the groove 35 to be larger than the outer diameter of the heat medium pipe 4, it is possible to obtain substantially the same effect as that of the first embodiment. Moreover, since it is not necessary to form the 2nd ditch | groove in the 2nd metal member 33, an operation | work effort can be saved. In the arrangement step, the arrangement work is facilitated because the second concave groove is not formed in the second metal member 33.
　なお、第一凹溝３５は、本実施形態では断面視矩形に形成したが、これに限定されるものではなく曲面を含むように形成してもよい。また、流入攪拌工程は、第一金属部材３２、熱媒体用管４及び第二金属部材３３からなる仮組構造体Ｕの表面及び裏面から行ったが、空間部Ｋ３と熱媒体用管４の形状によっては表面から行うだけでもよい。この場合は、図１１の（ｃ）を参照するように、第二金属部材３３の表面３３ａから流入攪拌工程を行うと、第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑが流入されるとともに、第一金属部材３２と第二金属部材３３との突き合わせ部分である突合部Ｖ（Ｖ１，Ｖ２）も摩擦攪拌される。これにより、第一金属部材３２と第二金属部材３３とを接合することができる。また、この場合は、流入攪拌用回転ツール５５の先端が、突合部Ｖよりも深い位置に達するように流入攪拌工程を行うことが好ましい。これにより、第一金属部材３２と第二金属部材３３との接合や、第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材Ｑを流入させる作業をより確実に行うことができる。 In addition, although the 1st ditch | groove 35 was formed in the cross sectional view rectangle in this embodiment, it is not limited to this, You may form so that a curved surface may be included. Moreover, although the inflow stirring process was performed from the surface and the back surface of the temporary assembly structure U which consists of the 1st metal member 32, the pipe | tube 4 for a heat medium, and the 2nd metal member 33, the space part K3 and the pipe | tube 4 for a heat medium. Depending on the shape, it may be performed only from the surface. In this case, as shown in FIG. 11C, when the inflow stirring process is performed from the surface 33a of the second metal member 33, the plastic fluid material Q flows into the first gap P1 and the second gap P2. At the same time, the abutting portion V (V1, V2) which is the abutting portion between the first metal member 32 and the second metal member 33 is also frictionally stirred. Thereby, the 1st metal member 32 and the 2nd metal member 33 can be joined. In this case, it is preferable to perform the inflow stirring step so that the tip of the inflow stirring rotating tool 55 reaches a position deeper than the abutting portion V. Thereby, joining of the 1st metal member 32 and the 2nd metal member 33, and the operation | work which flows the plastic fluid material Q into the 1st space | gap part P1 and the 2nd space | gap part P2 can be performed more reliably.
　また、第一実施形態～第四実施形態では、流入攪拌工程で使用する流入攪拌用回転ツール５５を、接合工程で使用する接合用回転ツール５０よりも大型のものとしているが、接合工程で流入攪拌用回転ツール５５を使用するようにしてもよい。このようにすれば、各工程で使用する回転ツールを統一することができ、回転ツールの交換時間を省略することができ、施工時間を短縮できる。 In the first to fourth embodiments, the inflow stirring rotary tool 55 used in the inflow stirring process is made larger than the joining rotary tool 50 used in the joining process. You may make it use the rotation tool 55 for stirring. If it does in this way, the rotation tool used at each process can be unified, the exchange time of a rotation tool can be omitted, and construction time can be shortened.
[第五実施形態]
　次に、本発明の第五実施形態について説明する。第五実施形態は、第一実施形態～第四実施形態の接合工程に替えて、溶接工程を行う。つまり、第五実施形態に係る伝熱板の製造方法では、図１２を参照するように、第一金属部材２及び第二金属部材３を形成するとともに、第一金属部材２に熱媒体用管４及び第二金属部材３を配置する準備工程と、突合部Ｖ１，Ｖ２に沿って溶接を行う溶接工程と、第二金属部材３の表面３ａ側及び第一金属部材２の裏面２ｂから流入攪拌用回転ツールを移動させて第一空隙部～第四空隙部に塑性流動材を流入させる流入攪拌工程とを含む。なお、第五実施形態では、溶接工程を除いては、第一実施形態と同等であるため、共通する部分の詳細な説明は省略する。 [Fifth embodiment]
Next, a fifth embodiment of the present invention will be described. In the fifth embodiment, a welding process is performed in place of the joining process of the first to fourth embodiments. That is, in the heat transfer plate manufacturing method according to the fifth embodiment, the first metal member 2 and the second metal member 3 are formed and the heat medium pipe is formed on the first metal member 2 as shown in FIG. 4 and the second metal member 3 are prepared, the welding process is performed along the abutting portions V1 and V2, and the inflow agitation from the front surface 3a side of the second metal member 3 and the back surface 2b of the first metal member 2. And an inflow agitation step in which the plastic fluidizing material is caused to flow into the first gap portion to the fourth gap portion by moving the rotary tool for use. In addition, in 5th embodiment, since a welding process is remove | excluded, since it is equivalent to 1st embodiment, detailed description of a common part is abbreviate | omitted.
　溶接工程では、前記準備工程で形成された仮組構造体（第一金属部材２、第二金属部材３及び熱媒体用管４）の側面に現れる突合部Ｖ（Ｖ１，Ｖ２）に沿って溶接を行う。溶接工程における溶接の種類は特に制限を受けないが、ＭＩＧ溶接又はＴＩＧ溶接等の肉盛り溶接を行って、溶接金属Ｔで突合部Ｖ１，Ｖ２を覆うことが好ましい。このように、溶接工程を行うことで、第一金属部材２と第二金属部材３とを固定した状態で流入攪拌工程を行うことができるため、流入攪拌工程の作業性を高めることができる。なお、溶接工程では、突合部Ｖ１，Ｖ２の全長に亘って溶接を行ってもよいし、所定の間隔をあけて断続的に行ってもよい。また、溶接工程では、突合部Ｖ１，Ｖ２に沿って溝を形成し、当該溝に溶接金属Ｔを充填させてもよい。 In the welding process, welding is performed along the abutting portions V (V1, V2) appearing on the side surfaces of the temporarily assembled structure (first metal member 2, second metal member 3, and heat medium pipe 4) formed in the preparation process. I do. The type of welding in the welding process is not particularly limited, but it is preferable to perform overlay welding such as MIG welding or TIG welding and cover the butt portions V1 and V2 with the weld metal T. Thus, by performing a welding process, since an inflow stirring process can be performed in the state which fixed the 1st metal member 2 and the 2nd metal member 3, workability | operativity of an inflow stirring process can be improved. In the welding process, welding may be performed over the entire length of the abutting portions V1 and V2, or may be performed intermittently with a predetermined interval. In the welding process, a groove may be formed along the abutting portions V1 and V2, and the weld metal T may be filled in the groove.
［第六実施形態］
　次に、本発明の第六実施形態について説明する。第六実施形態に係る伝熱板２０１は、図１３～図１６に示すように、厚板形状の第一金属部材（ベース部材）２０２と、第一金属部材２０２の蓋溝２０６に配置される第二金属部材（蓋板）２１０と、第一金属部材２０２と第二金属部材２１０の間に挿入される熱媒体用管２１６とを主に備えている。熱媒体用管２１６は、平面視Ｕ字状を呈するように湾曲して形成されている。 [Sixth embodiment]
Next, a sixth embodiment of the present invention will be described. The heat transfer plate 201 according to the sixth embodiment is disposed in a thick plate-shaped first metal member (base member) 202 and a lid groove 206 of the first metal member 202 as shown in FIGS. It mainly includes a second metal member (lid plate) 210 and a heat medium pipe 216 inserted between the first metal member 202 and the second metal member 210. The heat medium pipe 216 is formed to be curved so as to have a U-shape in plan view.
　第一金属部材２０２と第二金属部材２１０は、図１３及び図１６に示すように、摩擦攪拌接合により生成された塑性化領域Ｗ２１～Ｗ２６によって一体形成されている。第二金属部材２１０の表面２１１には、塑性化領域Ｗ２１，Ｗ２２よりも深く形成された塑性化領域Ｗ２３，Ｗ２４が形成されている。さらに、第一金属部材２０２の裏面２０４には塑性化領域Ｗ２５，Ｗ２６が形成されている。 As shown in FIGS. 13 and 16, the first metal member 202 and the second metal member 210 are integrally formed by plasticizing regions W21 to W26 generated by friction stir welding. On the surface 211 of the second metal member 210, plasticized regions W23 and W24 formed deeper than the plasticized regions W21 and W22 are formed. Further, plasticized regions W25 and W26 are formed on the back surface 204 of the first metal member 202.
　第一金属部材２０２は、図１４及び図１５に示すように、例えば、アルミニウム合金（ＪＩＳ：Ａ６０６１）で形成されている。第一金属部材２０２は、熱媒体用管２１６に流れる熱媒体の熱を外部に伝達させる役割、あるいは、外部の熱を熱媒体用管２１６に流れる熱媒体に伝達させる役割を果たす。第一金属部材２０２の表面２０３には、蓋溝２０６が凹設されており、蓋溝２０６の底面２０６ｃには熱媒体用管２１６の一方側（下半部）を収容する第一凹溝２０８が凹設されている。 The first metal member 202 is made of, for example, an aluminum alloy (JIS: A6061) as shown in FIGS. The first metal member 202 has a role of transmitting heat of the heat medium flowing through the heat medium pipe 216 to the outside, or a role of transferring external heat to the heat medium flowing through the heat medium pipe 216. A lid groove 206 is recessed in the surface 203 of the first metal member 202, and a first groove 208 that accommodates one side (lower half) of the heat medium pipe 216 in the bottom surface 206 c of the lid groove 206. Is recessed.
　蓋溝２０６は、熱媒体用管２１６を覆う第二金属部材２１０が配置される部分であって、第一金属部材２０２の長手方向に亘って連続して形成されている。蓋溝２０６は、断面視矩形を呈しており、蓋溝２０６の底面２０６ｃから垂直に立ち上がる側壁２０６ａ，２０６ｂを備えている。
　第一凹溝２０８は、熱媒体用管２１６の下半部を収容する部分であって、平面視Ｕ字状を呈し、上方が開口するように断面視矩形に形成されている。第一凹溝２０８は、底面２０８ｃと、底面２０８ｃから垂直に立ち上がる立面２０８ａ，２０８ｂを備えている。 The lid groove 206 is a portion where the second metal member 210 covering the heat medium pipe 216 is disposed, and is formed continuously over the longitudinal direction of the first metal member 202. The lid groove 206 has a rectangular shape in sectional view, and includes side walls 206 a and 206 b that rise vertically from the bottom surface 206 c of the lid groove 206.
The first concave groove 208 is a portion that accommodates the lower half of the heat medium pipe 216 and has a U-shape in plan view, and is formed in a rectangular shape in cross section so that the top is open. The first concave groove 208 includes a bottom surface 208c and rising surfaces 208a and 208b that rise vertically from the bottom surface 208c.
　第二金属部材２１０は、図１４及び図１５に示すように、第一金属部材２０２と同様のアルミニウム合金からなり、第一金属部材２０２の蓋溝２０６に配置される。第二金属部材２１０は、表面（上面）２１１、裏面（下面）２１２、側面２１３ａ及び側面２１３ｂを有する。蓋溝２０６に第二金属部材２１０を配置すると、第二金属部材２１０の両端面が、第一金属部材２０２の両端面と面一になるように形成されている。第二金属部材２１０の裏面２１２には、平面視Ｕ字状を呈し、第一凹溝２０８に対応して第二凹溝２１５が形成されている。 As shown in FIGS. 14 and 15, the second metal member 210 is made of the same aluminum alloy as the first metal member 202 and is disposed in the lid groove 206 of the first metal member 202. The second metal member 210 has a front surface (upper surface) 211, a back surface (lower surface) 212, a side surface 213a, and a side surface 213b. When the second metal member 210 is disposed in the lid groove 206, both end surfaces of the second metal member 210 are formed to be flush with both end surfaces of the first metal member 202. The back surface 212 of the second metal member 210 has a U shape in plan view, and a second groove 215 is formed corresponding to the first groove 208.
　第二凹溝２１５は、図１５の（ａ）及び（ｂ）に示すように、熱媒体用管２１６の他方側（上半部）を収容する部分であって、下方が開口するように断面視矩形に形成されている。第二凹溝２１５は、天面２１５ｃと天面２１５ｃから垂直に立ち下がる立面２１５ａ，２１５ｂを備えている。 As shown in FIGS. 15A and 15B, the second concave groove 215 is a portion that accommodates the other side (upper half portion) of the heat medium pipe 216, and has a cross section that opens downward. It is formed in a viewing rectangle. The second groove 215 includes a top surface 215c and vertical surfaces 215a and 215b that vertically fall from the top surface 215c.
　第二金属部材２１０は、図１５の（ａ）及び（ｂ）に示すように、蓋溝２０６に挿入される。第二金属部材２１０の側面２１３ａ，２１３ｂは、蓋溝２０６の側壁２０６ａ，２０６ｂと面接触するか又は微細な隙間をあけて対向する。ここで、図１５の（ｂ）に示すように、側面２１３ａと側壁２０６ａとの突合せ部を「突合部Ｖ２１」とし、側面２１３ｂと側壁２０６ｂとの突合せ部を「突合部Ｖ２２」とする。 The second metal member 210 is inserted into the lid groove 206 as shown in FIGS. 15 (a) and 15 (b). The side surfaces 213a and 213b of the second metal member 210 are in surface contact with the side walls 206a and 206b of the lid groove 206 or face each other with a minute gap. Here, as shown in FIG. 15B, the abutting portion between the side surface 213a and the side wall 206a is referred to as “abutting portion V21”, and the abutting portion between the side surface 213b and the side wall 206b is referred to as “abutting portion V22”.
　熱媒体用管２１６は、図１４等に示すように、平面視Ｕ字状を呈する円筒管である。熱媒体用管２１６の材質は特に制限されるものではないが、本実施形態では銅製としている。熱媒体用管２１６は、中空部２１８に、例えば高温液、高温ガスなどの熱媒体を循環させて、第一金属部材２０２及び第二金属部材２１０に熱を伝達させる部材、あるいは中空部２１８に、例えば冷却水、冷却ガスなどの熱媒体を循環させて、第一金属部材２０２及び第二金属部材２１０から熱を伝達される部材である。なお、熱媒体用管２１６の中空部２１８に、例えばヒーターを通して、ヒーターから発生する熱を第一金属部材２０２及び第二金属部材２１０に伝達させる部材として利用してもよい。 The heat medium pipe 216 is a cylindrical pipe having a U-shape in plan view as shown in FIG. The material of the heat medium pipe 216 is not particularly limited, but is made of copper in this embodiment. The heat medium pipe 216 is a member that circulates a heat medium such as a high-temperature liquid or a high-temperature gas through the hollow portion 218 to transmit heat to the first metal member 202 and the second metal member 210, or the hollow portion 218. For example, the first metal member 202 and the second metal member 210 can transfer heat by circulating a heat medium such as cooling water or cooling gas. Note that heat generated from the heater may be used as a member for transmitting the heat generated from the heater to the first metal member 202 and the second metal member 210 through the hollow portion 218 of the heat medium pipe 216, for example.
　図１５の（ｂ）に示すように、第一金属部材２０２に第二金属部材２１０を配置すると、第一金属部材２０２の第一凹溝２０８と第二金属部材２１０の第二凹溝２１５とが合わさり、断面視矩形の空間部Ｋが形成される。空間部Ｋには、熱媒体用管２１６が収容される。 As shown in FIG. 15B, when the second metal member 210 is disposed on the first metal member 202, the first groove 208 of the first metal member 202 and the second groove 215 of the second metal member 210 To form a space K having a rectangular cross section. A heat medium pipe 216 is accommodated in the space K.
　ここで、第一凹溝２０８の深さは、熱媒体用管２１６の外径の１／２に形成されている。また、第一凹溝２０８の幅は、熱媒体用管２１６の外径の１．１倍となるように形成されている。一方、第二凹溝２１５の深さは、熱媒体用管２１６の半径の１．１倍に形成されている。また、第二凹溝２１５の幅は、熱媒体用管２１６の外径の１．１倍に形成されている。したがって、第一金属部材２０２に熱媒体用管２１６及び第二金属部材２１０を配置すると、第一凹溝２０８と熱媒体用管２１６の下端は接触し、熱媒体用管２１６の左右端及び上端は、第一凹溝２０８及び第二凹溝２１５と微細な隙間をあけて離間する。言い換えると、空間部Ｋの幅及び高さは、熱媒体用管２１６の外径よりも大きく形成されている。 Here, the depth of the first groove 208 is formed to be ½ of the outer diameter of the heat medium pipe 216. Further, the width of the first groove 208 is formed to be 1.1 times the outer diameter of the heat medium pipe 216. On the other hand, the depth of the second concave groove 215 is formed to be 1.1 times the radius of the heat medium pipe 216. The width of the second concave groove 215 is 1.1 times the outer diameter of the heat medium pipe 216. Therefore, when the heat medium pipe 216 and the second metal member 210 are arranged on the first metal member 202, the first concave groove 208 and the lower end of the heat medium pipe 216 are in contact with each other, and the left and right ends and the upper end of the heat medium pipe 216 are contacted. Are spaced apart from the first concave groove 208 and the second concave groove 215 with a fine gap. In other words, the width and height of the space K are formed larger than the outer diameter of the heat medium pipe 216.
　矩形断面の空間部Ｋ内に、円形断面の熱媒体用管２１６を挿入しているため、熱媒体用管２１６の周囲には、空隙部が形成される。例えば、図１４に示すように、熱媒体用管２１６内を流れる媒体の流動方向を「Ｙ」とすると、熱媒体用管２１６の周囲に形成される空隙部のうち、流動方向Ｙに対して左上側に形成される部分を「第一空隙部Ｐ２１」とし、右上側に形成される部分を「第二空隙部Ｐ２２」とし、左下側に形成される部分を「第三空隙部Ｐ２３」とし、右下側に形成される部分を「第四空隙部Ｐ２４」とする。 Since the heat medium pipe 216 having a circular cross section is inserted into the rectangular space K, a space is formed around the heat medium pipe 216. For example, as shown in FIG. 14, when the flow direction of the medium flowing in the heat medium pipe 216 is “Y”, among the voids formed around the heat medium pipe 216, the flow direction Y The portion formed on the upper left side is referred to as “first gap P21”, the portion formed on the upper right side is referred to as “second gap P22”, and the portion formed on the lower left side is referred to as “third gap P23”. The portion formed on the lower right side is referred to as a “fourth gap P24”.
　塑性化領域Ｗ２１，Ｗ２２は、図１３及び図１６に示すように、突合部Ｖ２１，Ｖ２２に摩擦攪拌接合を施した際に、第一金属部材２０２及び第二金属部材２１０の一部が塑性流動して一体化された領域である。即ち、突合部Ｖ２１，Ｖ２２に沿って、後記する接合用回転ツール５０（図１７参照）を用いて摩擦攪拌接合を行うと、突合部Ｖ２１，Ｖ２２にかかる第一金属部材２０２及び第二金属部材２１０の金属材料が、接合用回転ツール２０の摩擦熱により塑性流動化して一体化されることで、第一金属部材２０２と第二金属部材２１０が接合される。 As shown in FIGS. 13 and 16, in the plasticizing regions W21 and W22, when the friction stir welding is performed on the abutting portions V21 and V22, part of the first metal member 202 and the second metal member 210 is plastically flowed. It is an integrated area. That is, when friction stir welding is performed along the abutting portions V21 and V22 by using a joining rotary tool 50 (see FIG. 17) described later, the first metal member 202 and the second metal member applied to the abutting portions V21 and V22. The first metal member 202 and the second metal member 210 are joined by the plastic material 210 being plastically fluidized and integrated by the frictional heat of the joining rotary tool 20.
　塑性化領域Ｗ２３，Ｗ２４は、図１３及び図１６に示すように、第二金属部材２１０の表面２１１から挿入した流入攪拌用回転ツール５５（図１７参照）を第二凹溝２１５に沿って移動させた際に形成されたものである。塑性化領域Ｗ２３の一部は、熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１に流入している。また、塑性化領域Ｗ２４の一部は、熱媒体用管２１６の周囲に形成された第二空隙部Ｐ２２に流入している。即ち、塑性化領域Ｗ２３，Ｗ２４は、第二金属部材２１０の一部が塑性流動して、第一空隙部Ｐ２１及び第二空隙部Ｐ２２にそれぞれ流入し、熱媒体用管２１６と接触している。 As shown in FIGS. 13 and 16, the plasticizing regions W <b> 23 and W <b> 24 are moved along the second concave groove 215 by the inflow stirring rotating tool 55 (see FIG. 17) inserted from the surface 211 of the second metal member 210. It was formed when A part of the plasticizing region W23 flows into the first gap P21 formed around the heat medium pipe 216. Further, a part of the plasticizing region W24 flows into the second gap P22 formed around the heat medium pipe 216. That is, in the plasticized regions W23 and W24, a part of the second metal member 210 is plastically flowed, flows into the first gap P21 and the second gap P22, and is in contact with the heat medium pipe 216. .
　塑性化領域Ｗ２５，Ｗ２６は、第一金属部材２０２の裏面２０４から挿入した流入攪拌用回転ツール５５を第一凹溝２０８に沿って移動させた際に形成されたものである。塑性化領域Ｗ２５の一部は、熱媒体用管２１６の周囲に形成された第三空隙部Ｐ２３に流入している。塑性化領域Ｗ２６の一部は、熱媒体用管２１６の周囲に形成された第四空隙部Ｐ２４に流入している。即ち、塑性化領域Ｗ２５，Ｗ２６は、第一金属部材２０２の一部が塑性流動し、熱媒体用管２１６と接触している。 The plasticizing regions W25 and W26 are formed when the inflow stirring rotary tool 55 inserted from the back surface 204 of the first metal member 202 is moved along the first concave groove 208. A part of the plasticizing region W25 flows into a third gap P23 formed around the heat medium pipe 216. A part of the plasticizing region W26 flows into a fourth gap P24 formed around the heat medium pipe 216. That is, in the plasticized regions W25 and W26, a part of the first metal member 202 is plastically flowed and is in contact with the heat medium pipe 216.
　次に、伝熱板２０１の製造方法について、図１７～図１９を用いて説明する。第六実施形態に係る伝熱板の製造方法は、第一金属部材２０２及び第二金属部材２１０を形成するとともに、第一金属部材２０２に熱媒体用管２１６及び第二金属部材２１０を配置する準備工程と、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材２１０の表面２１１側及び第一金属部材２０２の裏面２０４から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材Ｑを流入させる流入攪拌工程とを含む。 Next, a method for manufacturing the heat transfer plate 201 will be described with reference to FIGS. In the method for manufacturing a heat transfer plate according to the sixth embodiment, the first metal member 202 and the second metal member 210 are formed, and the heat medium pipe 216 and the second metal member 210 are disposed on the first metal member 202. Inflow from the preparation step, the joining step of moving the joining rotary tool 50 along the abutting portions V21 and V22 to perform friction stir welding, the front surface 211 side of the second metal member 210 and the back surface 204 of the first metal member 202 An inflow stirring step of moving the stirring rotary tool 55 to cause the plastic fluid material Q to flow into the first gap portion P21 to the fourth gap portion P24.
　（準備工程）
　準備工程は、第一金属部材２０２及び第二金属部材２１０を形成する切削工程と、第一金属部材２０２に形成された第一凹溝２０８に熱媒体用管２１６を挿入する挿入工程と、蓋溝２０６に第二金属部材２１０を配置する蓋溝閉塞工程を含む。 (Preparation process)
The preparation step includes a cutting step for forming the first metal member 202 and the second metal member 210, an insertion step for inserting the heat medium pipe 216 into the first concave groove 208 formed in the first metal member 202, and a lid. A lid groove closing step of disposing the second metal member 210 in the groove 206 is included.
　切削工程では、図１７の（ａ）に示すように、公知の切削加工により、厚板部材に蓋溝２０６を形成する。そして、蓋溝２０６の底面２０６ｃに、切削加工により断面視矩形を呈する第一凹溝２０８を形成する。これにより、蓋溝２０６と、蓋溝２０６の底面２０６ｃに開口された第一凹溝２０８を備えた第一金属部材２０２が形成される。
　また、切削工程では、公知の切削加工により、板厚部材の裏面に断面視矩形を呈する第二凹溝２１５形成する。これにより、下方に開口する第二凹溝２１５を備えた第二金属部材２１０が形成される。
　なお、第六実施形態においては、第一金属部材２０２及び第二金属部材２１０を切削加工により形成したが、アルミニウム合金製の押出形材や鋳造品を用いてもよい。 In the cutting process, as shown in FIG. 17A, the lid groove 206 is formed in the thick plate member by a known cutting process. And the 1st ditch | groove 208 which exhibits a cross sectional view rectangle is formed in the bottom face 206c of the cover groove | channel 206 by cutting. Thereby, the first metal member 202 including the cover groove 206 and the first concave groove 208 opened in the bottom surface 206c of the cover groove 206 is formed.
In the cutting process, the second concave groove 215 having a rectangular shape in cross section is formed on the back surface of the plate thickness member by a known cutting process. Thereby, the 2nd metal member 210 provided with the 2nd ditch | groove 215 opened below is formed.
In the sixth embodiment, the first metal member 202 and the second metal member 210 are formed by cutting. However, an extruded shape or cast product made of aluminum alloy may be used.
　挿入工程では、図１７の（ａ）に示すように、第一凹溝２０８に熱媒体用管２１６を挿入する。このとき、熱媒体用管２１６の下半部は、第一凹溝２０８の底面２０８ｃと接触し、第一凹溝２０８の立面２０８ａ，２０８ｂとは微細な隙間をあけて離間する。 In the insertion step, the heat medium pipe 216 is inserted into the first groove 208 as shown in FIG. At this time, the lower half portion of the heat medium pipe 216 is in contact with the bottom surface 208c of the first concave groove 208, and is separated from the standing surfaces 208a and 208b of the first concave groove 208 with a fine gap.
　蓋溝閉塞工程では、図１７の（ｂ）に示すように、熱媒体用管２１６の上半部を第二金属部材２１０に形成された第二凹溝２１５に挿入しつつ、第一金属部材２０２の蓋溝２０６内に第二金属部材２１０を配置する。このとき、熱媒体用管２１６と、第二金属部材２１０の裏面２１２に形成された第二凹溝２１５の両立面２１５ａ，２１５ｂ及び天面２１５ｃとは微細な隙間をあけて離間する。また、第二金属部材２１０の表面２１１が、第一金属部材２０２の表面２０３と面一になる。また、蓋溝２０６の側壁２０６ａ，２０６ｂと、第二金属部材２１０の側面２１３ａ，２１３ｂによって突合部Ｖ２１，Ｖ２２が形成される。 In the lid groove closing step, the first metal member is inserted while the upper half of the heat medium pipe 216 is inserted into the second concave groove 215 formed in the second metal member 210 as shown in FIG. The second metal member 210 is disposed in the lid groove 206 of 202. At this time, the heat medium pipe 216 and the compatible surfaces 215a and 215b and the top surface 215c of the second concave groove 215 formed on the back surface 212 of the second metal member 210 are separated from each other with a fine gap. Further, the surface 211 of the second metal member 210 is flush with the surface 203 of the first metal member 202. Further, the abutting portions V21 and V22 are formed by the side walls 206a and 206b of the lid groove 206 and the side surfaces 213a and 213b of the second metal member 210.
　（接合工程）
　次に、図１７の（ｃ）に示すように、突合部Ｖ２１，Ｖ２２に沿って、摩擦攪拌接合を行う。摩擦攪拌接合は、第一実施形態と同様の接合用回転ツール５０（公知の回転ツール）を用いて行う。 (Joining process)
Next, as shown in FIG. 17C, friction stir welding is performed along the abutting portions V21 and V22. Friction stir welding is performed using a welding rotary tool 50 (known rotary tool) similar to that of the first embodiment.
　摩擦攪拌接合は、第一金属部材２０２及び第二金属部材２１０を図示しない治具により拘束した状態で、各突合部Ｖ２１，Ｖ２２に高速回転する接合用回転ツール５０を押し込み、突合部Ｖ２１，Ｖ２２に沿って移動させる。高速回転するピン５３により、その周囲の第一金属部材２０２及び第二金属部材２１０のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化した後に冷却されて第一金属部材２０２と第二金属部材２１０と一体化する。 In the friction stir welding, the rotating tool 50 that rotates at high speed is pushed into each of the abutting portions V21 and V22 while the first metal member 202 and the second metal member 210 are restrained by a jig (not shown), and the abutting portions V21 and V22 are pressed. Move along. The aluminum alloy material of the surrounding first metal member 202 and second metal member 210 is heated by frictional heat and plastic fluidized by the pin 53 that rotates at high speed, and then cooled to cool the first metal member 202 and the second metal member. Integrate with 210.
　（流入攪拌工程）
　流入攪拌工程では、第一金属部材２０２、熱媒体用管２１６及び第二金属部材２１０からなる仮組構造体の表面及び裏面から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材を流入させる。即ち、流入攪拌工程は、第二金属部材２１０の表面２１１で流入攪拌用回転ツール５５を移動させて、第一空隙部Ｐ２１及び第二空隙部Ｐ２２に塑性流動材Ｑを流入させる表面側流入攪拌工程と、第一金属部材２０２の裏面２０４で流入攪拌用回転ツール５５を移動させて第三空隙部Ｐ２３及び第四空隙部Ｐ２４に塑性流動材Ｑを流入させる裏面側流入攪拌工程を含むものである。流入攪拌工程では、第一実施形態と同様の流入攪拌用回転ツール５５を用いる。 (Inflow stirring process)
In the inflow agitation step, the inflow agitation rotating tool 55 is moved from the front surface and the back surface of the temporary assembly structure including the first metal member 202, the heat medium pipe 216, and the second metal member 210, and the first gap portion P21 to the first space P21. The plastic fluidizing material is caused to flow into the four gaps P24. That is, in the inflow agitation step, the inflow agitation rotating tool 55 is moved on the surface 211 of the second metal member 210 to cause the plastic fluid material Q to flow into the first gap P21 and the second gap P22. And a back side inflow agitation step in which the inflow agitation rotating tool 55 is moved on the back surface 204 of the first metal member 202 to cause the plastic fluid material Q to flow into the third gap part P23 and the fourth gap part P24. In the inflow stirring step, the same inflow stirring rotating tool 55 as in the first embodiment is used.
　なお、表面側流入攪拌工程のうち、第一空隙部Ｐ２１に塑性流動材Ｑを流入させる工程を第一表面側流入攪拌工程とし、第二空隙部Ｐ２２に塑性流動材Ｑを流入させる工程を第二表面側流入攪拌工程とする。また、第三空隙部Ｐ２３に塑性流動材Ｑを流入させる工程を第一裏面側流入攪拌工程とし、第四空隙部Ｐ２４に塑性流動材Ｑを流入させる工程を第二裏面側流入攪拌工程とする。 Of the surface side inflow stirring step, the step of flowing the plastic fluid material Q into the first gap portion P21 is referred to as the first surface side inflow stirring step, and the step of flowing the plastic fluid material Q into the second gap portion P22 is the first step. Two surface side inflow stirring step. Further, the step of flowing the plastic fluid material Q into the third gap P23 is referred to as a first back side inflow stirring step, and the step of flowing the plastic fluid material Q into the fourth gap P24 is referred to as a second back side inflow stirring step. .
　第一表面側流入攪拌工程では、熱媒体用管２１６の流動方向Ｙ（図１４参照）に対して左上側に形成された第一空隙部Ｐ２１に、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを流入させる。 In the first surface side inflow stirring step, the plastic fluidized material plastically fluidized by friction stirring in the first gap P21 formed on the upper left side with respect to the flow direction Y of the heat medium pipe 216 (see FIG. 14). Let Q flow in.
　第一表面側流入攪拌工程では、第二金属部材２１０の表面２１１で、高速回転する流入攪拌用回転ツール５５を押し込み、下方の第二凹溝２１５に沿って平面視Ｕ字状の軌跡となるように流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が第一空隙部Ｐ２１と重なるように移動させる。このとき、高速回転するピン５８により、その周囲の第二金属部材２１０のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５が、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑは、第一空隙部Ｐ２１に流入し、熱媒体用管２１６と接触する。 In the first surface side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed is pushed on the surface 211 of the second metal member 210, and a U-shaped trajectory in plan view is formed along the second concave groove 215 below. Thus, the inflow stirring rotary tool 55 is moved. The inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the first gap P21. At this time, the aluminum alloy material of the surrounding second metal member 210 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P21 and contacts the heat medium pipe 216.
　ここで、図１７の（ｂ）に示すように、熱媒体用管２１６の左右端及び上端は、第一凹溝２０８及び第二凹溝２１５と微細な隙間をあけて配置されているが、塑性流動材Ｑが第一空隙部Ｐ２１に流れ込むと、塑性流動材Ｑの熱が熱媒体用管２１６に奪われるため流動性が低下する。したがって、第一空隙部Ｐ２１に流入した塑性流動材Ｑは、第二空隙部Ｐ２２及び第三空隙部Ｐ２３には流入せずに、第一空隙部Ｐ２１に留まって充填され、硬化する。 Here, as shown in FIG. 17 (b), the left and right ends and the upper end of the heat medium pipe 216 are arranged with a fine gap from the first concave groove 208 and the second concave groove 215. When the plastic fluid material Q flows into the first gap P21, the heat of the plastic fluid material Q is taken away by the heat medium pipe 216, so that the fluidity is lowered. Therefore, the plastic fluid material Q that has flowed into the first gap P21 does not flow into the second gap P22 and the third gap P23, but remains in the first gap P21 to be filled and hardened.
　第二表面側流入攪拌工程では、図１８の（ａ）に示すように、熱媒体用管２１６の流動方向Ｙ（図２参照）に対して右上側に形成された第二空隙部Ｐ２２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２２に行うことを除いては、第一表面側流入攪拌工程と同等であるため説明を省略する。なお、表面側流入攪拌工程が終了したら、第一金属部材２０２の表面２０３に形成されたバリを切削除去して表面２０３を平滑にするのが好ましい。 In the second surface-side inflow stirring step, as shown in FIG. 18A, the second gap P22 formed on the upper right side with respect to the flow direction Y (see FIG. 2) of the heat medium pipe 216 is rubbed. The plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that it is performed in the second gap P22, description thereof is omitted. In addition, after the surface side inflow stirring process is complete | finished, it is preferable to cut and remove the burr | flash formed in the surface 203 of the 1st metal member 202, and to make the surface 203 smooth.
　裏面側流入攪拌工程では、図１８の（ｂ）に示すように、第一金属部材２０２の表裏を逆にした後、裏面側流入攪拌工程を行う。即ち、裏面側流入攪拌工程では、第一金属部材２０２の裏面２０４で第一凹溝２０８に沿って流入攪拌用回転ツール５５を移動させて第三空隙部Ｐ２３及び第四空隙部Ｐ２４に摩擦熱によって塑性流動化させた塑性流動材を流入させる。裏面側流入攪拌工程は、本実施形態では、第三空隙部Ｐ２３に塑性流動材を流入させる第一裏面側流入攪拌工程と、第四空隙部Ｐ２４に塑性流動材を流入させる第二裏面側流入攪拌工程を含む。 In the back side inflow stirring step, as shown in FIG. 18B, the back side inflow stirring step is performed after the front and back of the first metal member 202 are reversed. That is, in the back side inflow agitation step, the inflow agitation rotating tool 55 is moved along the first concave groove 208 on the back surface 204 of the first metal member 202 to cause frictional heat in the third gap part P23 and the fourth gap part P24. The plastic fluidized material that has been plastic fluidized by the flow is introduced. In this embodiment, the back-side inflow agitation step includes a first back-side inflow agitation step for causing the plastic fluid material to flow into the third gap P23, and a second back-side inflow for causing the plastic fluid material to flow into the fourth gap P24. Includes a stirring step.
　第一裏面側流入攪拌工程では、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを第三空隙部Ｐ２３に流入させる。第一裏面側流入攪拌工程では、第一金属部材２０２の裏面２０４で高速回転する流入攪拌用回転ツール５５を押し込み、第一凹溝２０８に沿って平面視Ｕ字状の軌跡となるように流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が熱媒体用管２１６の第三空隙部Ｐ２３と重なるように移動させる。このとき、高速回転するピン５８により、その周囲の第一金属部材２０２のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５が、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑは、第三空隙部Ｐ２３に流入し、熱媒体用管２１６と接触する。 In the first back side inflow agitation step, the plastic fluid material Q plastically fluidized by friction agitation is caused to flow into the third gap P23. In the first back-side inflow agitation step, the inflow agitation rotating tool 55 that rotates at high speed on the back surface 204 of the first metal member 202 is pushed in, and flows in a U-shaped path along the first concave groove 208. The stirring rotary tool 55 is moved. The inflow stirring rotary tool 55 is moved so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool main body 56 overlaps the third gap P23 of the heat medium pipe 216. At this time, the aluminum alloy material of the surrounding first metal member 202 is heated by frictional heat and plastic fluidized by the pin 58 rotating at high speed. Since the inflow and stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the third gap P23 and contacts the heat medium pipe 216.
　第二裏面側流入攪拌工程では、図１８の（ｃ）に示すように、摩擦攪拌によって塑性流動化させた塑性流動材Ｑを第四空隙部Ｐ２４に流入させる。第二裏面側流入攪拌工程は、第四空隙部Ｐ２４に行うことを除いては、第一裏面側流入攪拌工程と同等であるため、説明を省略する。裏面側流入攪拌工程が終了したら、第一金属部材２０２の裏面２０４に形成されたバリを切削除去して裏面２０４を平滑にするのが好ましい。 In the second back side inflow stirring step, as shown in FIG. 18C, the plastic fluid material Q plastically fluidized by friction stirring is caused to flow into the fourth gap P24. The second back-side inflow stirring process is the same as the first back-side inflow stirring process except that the second back-side inflow stirring process is performed in the fourth gap portion P24, and thus the description thereof is omitted. After the back side inflow stirring step is completed, it is preferable to cut and remove burrs formed on the back surface 204 of the first metal member 202 to make the back surface 204 smooth.
　なお、表面側流入攪拌工程及び裏面側流入攪拌工程では、第一空隙部Ｐ２１～第四空隙部Ｐ２４の形状や大きさ等に基づいて、流入攪拌用回転ツール５５の押込み量及び挿入位置等を設定する。熱媒体用管２１６がつぶれない程度に、流入攪拌用回転ツール５５を近づけて、第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材Ｑを隙間なく流入させることが好ましい。 In the front side inflow agitation step and the back side inflow agitation step, the pushing amount and insertion position of the inflow agitation rotating tool 55 are determined based on the shape and size of the first gap portion P21 to the fourth gap portion P24. Set. It is preferable that the inflow stirring rotary tool 55 is brought close to the heat medium pipe 216 so that the heat medium pipe 216 is not crushed, and the plastic fluid material Q flows into the first gap portion P21 to the fourth gap portion P24 without gaps.
　例えば、図１９に示すように、流入攪拌用回転ツール５５のピン５８の先端を、第二凹溝２１５の天面２１５ｃよりも深く挿入することが好ましい。また、流入攪拌用回転ツール５５のピン５８の先端と、熱媒体用管２１６に接する仮想鉛直面との最近接距離Ｌが１～３ｍｍであることが好ましい。これにより、熱媒体用管２１６を潰さない程度に第一空隙部Ｐ２１に塑性流動材を確実に流入させることができる。最近接距離Ｌが１ｍｍより小さいと、流入攪拌用回転ツール５５が熱媒体用管２１６に近すぎて、熱媒体用管２１６が潰れる可能性がある。また、最近接距離Ｌが３ｍｍより大きいと、第一空隙部Ｐ２１に塑性流動材が流入しない可能性がある。 For example, as shown in FIG. 19, it is preferable to insert the tip of the pin 58 of the inflow stirring tool 55 deeper than the top surface 215 c of the second concave groove 215. In addition, it is preferable that the closest distance L between the tip of the pin 58 of the inflow stirring rotary tool 55 and the virtual vertical plane in contact with the heat medium pipe 216 is 1 to 3 mm. Thereby, the plastic fluidized material can surely flow into the first gap P21 to the extent that the heat medium pipe 216 is not crushed. If the closest distance L is less than 1 mm, the inflow stirring rotary tool 55 may be too close to the heat medium pipe 216 and the heat medium pipe 216 may be crushed. If the closest distance L is greater than 3 mm, the plastic fluid material may not flow into the first gap P21.
　また、流入攪拌用回転ツール５５の押込み量（押込み長さ）は、例えば第一表面側流入攪拌工程において、ツール本体５６が押し退ける第二金属部材２１０の金属の体積が、第一空隙部Ｐ２１に充填される塑性流動化されたアルミニウム合金材料の体積及び塑性化領域Ｗ２３の幅方向両側に発生するバリの体積との和と同等になるような長さとなっている。 Further, the indentation amount (indentation length) of the inflow agitation rotating tool 55 is such that, for example, in the first surface side inflow agitation step, the metal volume of the second metal member 210 to which the tool body 56 is pushed away is the first gap P21. The length is equal to the sum of the volume of the plastic fluidized aluminum alloy material to be filled and the volume of burrs generated on both sides in the width direction of the plasticized region W23.
　以上説明した伝熱板の製造方法によれば、第一金属部材２０２に形成された第一凹溝２０８と、第二金属部材２１０の裏面２１２に形成された第二凹溝２１５からなる空間部Ｋにおいて、空間部Ｋの幅及び高さを熱媒体用管２１６の外径よりも大きく形成したため、熱媒体用管２１６の一部が湾曲している場合であっても、前記した挿入工程及び蓋溝閉塞工程を容易に行うことができる。 According to the manufacturing method of the heat transfer plate described above, the space portion including the first concave groove 208 formed in the first metal member 202 and the second concave groove 215 formed in the back surface 212 of the second metal member 210. In K, since the width and height of the space portion K are formed larger than the outer diameter of the heat medium pipe 216, even if a part of the heat medium pipe 216 is curved, The lid groove closing step can be easily performed.
　また、表面側流入攪拌工程及び裏面側流入攪拌工程により、熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板２０１の熱交換効率を高めることができる。 In addition, by flowing the plastic fluid material Q into the first gap portion P21 to the fourth gap portion P24 formed around the heat medium pipe 216 by the front-side inflow stirring step and the back-side inflow stirring step, the gap Since the portion can be filled, the heat exchange efficiency of the heat transfer plate 201 can be increased.
　また、本実施形態によれば、表面側流入攪拌工程の前に、比較的小さい接合用回転ツール５０を用いて、第一金属部材２０２と第二金属部材２１０とを接合しているので、表面側流入攪拌工程では、第二金属部材２１０が確実に固定された状態で摩擦攪拌を行うことができる。したがって、流入攪拌用回転ツール５５を用いて大きい押込み力が作用する摩擦攪拌接合を、安定した状態で行うことができる。 In addition, according to the present embodiment, since the first metal member 202 and the second metal member 210 are joined using the relatively small joining rotary tool 50 before the surface-side inflow stirring step, the surface In the side inflow stirring step, friction stirring can be performed in a state where the second metal member 210 is securely fixed. Therefore, friction stir welding in which a large pushing force is applied using the inflow stirring rotary tool 55 can be performed in a stable state.
　なお、本実施形態では、接合工程の後に流入攪拌工程を行っているが、流入攪拌工程の後に接合工程を行うようにしてもよい。このとき、第二金属部材２１０を長手方向から図示しない治具を用いて固定しておけば、第二金属部材２１０の幅方向は、第一金属部材２０２によって固定されているので、表面側流入攪拌工程における摩擦攪拌を、第二金属部材２１０が確実に固定された状態で行うことができる。 In this embodiment, the inflow stirring step is performed after the joining step, but the joining step may be performed after the inflow stirring step. At this time, if the second metal member 210 is fixed from the longitudinal direction using a jig (not shown), the width direction of the second metal member 210 is fixed by the first metal member 202. Friction stirring in the stirring step can be performed in a state where the second metal member 210 is securely fixed.
　また、本実施形態では、接合工程において、突合部Ｖ２１，Ｖ２２の全長に亘って、摩擦攪拌接合を施しているが、これに限定されるものではなく、突合部Ｖ２１，Ｖ２２に沿って所定の間隔を隔てて摩擦攪拌接合を断続的に行って、第一金属部材２０２に第二金属部材２１０の仮付けを施すようにしてもよい。このような伝熱板の製造方法によれば、接合工程に要する手間と時間を低減することができる。 Further, in the present embodiment, the friction stir welding is performed over the entire length of the abutting portions V21 and V22 in the joining step, but the present invention is not limited to this, and a predetermined amount is provided along the abutting portions V21 and V22. The first metal member 202 may be temporarily attached to the first metal member 202 by intermittently performing friction stir welding at intervals. According to such a method for manufacturing a heat transfer plate, labor and time required for the joining process can be reduced.
　また、前記したように、接合工程に替えて溶接工程を行ってもよい。溶接工程では、突合部Ｖ１，Ｖ２に対して連続的に溶接を行ってもよいし、断続的に行ってもよい。 Further, as described above, a welding process may be performed instead of the joining process. In the welding process, welding may be continuously performed on the abutting portions V1 and V2, or may be performed intermittently.
[第七実施形態]
　次に、本発明の第七実施形態について説明する。第七実施形態に係る伝熱板の製造方法は、裏面側流入攪拌工程を行っていない点、接合工程で形成された塑性化領域と表面側流入攪拌工程で形成された塑性化領域とが重複する点などで第六実施形態と相違する。なお、具体的な図示はしないが、熱媒体用管２１６は、第一実施形態と同様に平面視Ｕ字状を呈するものとする。 [Seventh embodiment]
Next, a seventh embodiment of the present invention will be described. The manufacturing method of the heat transfer plate according to the seventh embodiment is that the back side inflow agitation step is not performed, and the plasticized region formed in the joining step overlaps with the plasticization region formed in the surface side inflow agitation step. This is different from the sixth embodiment. Although not specifically illustrated, it is assumed that the heat medium pipe 216 has a U-shape in plan view as in the first embodiment.
　第七実施形態に係る伝熱板の製造方法は、図２０及び図２１に示すように、第一金属部材２０２及び第二金属部材２１０を形成するとともに、第一金属部材２０２に熱媒体用管２１６及び第二金属部材２１０を配置する準備工程と、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材２１０の表面２１１で、流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ２１及び第二空隙部Ｐ２２に塑性流動材Ｑを流入させる表面側流入攪拌工程を含むものである。 As shown in FIGS. 20 and 21, the heat transfer plate manufacturing method according to the seventh embodiment forms a first metal member 202 and a second metal member 210, and a heat medium pipe is formed on the first metal member 202. 216 and the second metal member 210 are prepared, a joining step of moving the joining rotary tool 50 along the abutting portions V21 and V22 to perform friction stir welding, and a surface 211 of the second metal member 210, This includes a surface-side inflow agitation step in which the inflow agitation rotating tool 55 is moved to cause the plastic fluid material Q to flow into the first gap P21 and the second gap P22.
　（準備工程）
　準備工程は、第一金属部材２０２及び第二金属部材２１０を形成する切削工程と、第一金属部材２０２に形成された第一凹溝２３８に熱媒体用管２１６を挿入する挿入工程と、蓋溝２０６に第二金属部材２１０を配置する蓋溝閉塞工程を含む。 (Preparation process)
The preparation step includes a cutting step for forming the first metal member 202 and the second metal member 210, an insertion step for inserting the heat medium pipe 216 into the first concave groove 238 formed in the first metal member 202, and a lid. A lid groove closing step of disposing the second metal member 210 in the groove 206 is included.
　切削工程では、図２０の（ａ）に示すように、公知の切削加工により、板厚部材に蓋溝２０６を形成する。そして、蓋溝２０６の底面２０６ｃに切削加工により上方が開口し断面時Ｕ字状を呈する第一凹溝２３８を形成する。第一凹溝２３８の底部２３７は円弧状に形成されており、熱媒体用管２１６と同等の曲率で形成されている。第一凹溝２３８の深さは、熱媒体用管２１６の外径よりも小さく形成されており、第一凹溝２３８の幅は熱媒体用管２１６の外径と略同等に形成されている。 In the cutting process, as shown in FIG. 20A, a lid groove 206 is formed in the plate thickness member by a known cutting process. Then, a first groove 238 is formed in the bottom surface 206c of the lid groove 206 by cutting so as to open upward and exhibit a U-shape in cross section. The bottom portion 237 of the first concave groove 238 is formed in an arc shape and has a curvature equivalent to that of the heat medium pipe 216. The depth of the first concave groove 238 is formed smaller than the outer diameter of the heat medium pipe 216, and the width of the first concave groove 238 is formed substantially equal to the outer diameter of the heat medium pipe 216. .
　次に、公知の切削加工により、板厚部材の裏面に断面視矩形を呈する第二凹溝２４５を切り欠いて第二金属部材２１０を形成する。第二凹溝２４５の幅は、熱媒体用管２１６の外径と略同等に形成されている。また、第二凹溝２４５の深さは、図２０の（ｂ）に示すように、第一金属部材２０２に熱媒体用管２１６及び第二金属部材２１０を挿入したときに、第二凹溝２４５の天面２４５ｃと熱媒体用管２１６とが微細な隙間をあけて離間するように形成されている。 Next, the second metal member 210 is formed by notching the second concave groove 245 having a rectangular cross-sectional view on the back surface of the plate thickness member by a known cutting process. The width of the second concave groove 245 is formed substantially equal to the outer diameter of the heat medium pipe 216. Further, as shown in FIG. 20B, the depth of the second concave groove 245 is such that when the heat medium pipe 216 and the second metal member 210 are inserted into the first metal member 202, the second concave groove 245 is formed. The top surface 245c of the 245 and the heat medium pipe 216 are formed so as to be separated with a fine gap.
　挿入工程では、図２０の（ｂ）に示すように、第一凹溝２３８に熱媒体用管２１６を挿入する。このとき、熱媒体用管２１６の下半部は、第一凹溝２３８の底部２３７と面接触する。なお、熱媒体用管２１６の上端は、蓋溝２０６の底面２０６ｃよりも上方に位置する。 In the insertion step, the heat medium pipe 216 is inserted into the first groove 238 as shown in FIG. At this time, the lower half portion of the heat medium pipe 216 is in surface contact with the bottom portion 237 of the first groove 238. Note that the upper end of the heat medium pipe 216 is positioned above the bottom surface 206 c of the lid groove 206.
　蓋溝閉塞工程では、図２０の（ｂ）に示すように、熱媒体用管２１６の上部を第二金属部材２１０に形成された第二凹溝２４５に挿入しつつ、第一金属部材２０２の蓋溝２０６内に第二金属部材２１０を配置する。このとき、熱媒体用管２１６と、第二金属部材２１０の裏面２１２に形成された第二凹溝２４５の両立面２４５ａ，２４５ｂ及び天面２４５ｃとは微細な隙間をあけて離間する。即ち、第一凹溝２３８と第二凹溝２４５とで形成された空間部Ｋ１の幅は、熱媒体用管２１６の外径と略同等に形成されており、空間部Ｋ１の高さＨは、熱媒体用管２１６の外径よりも大きく形成されている。また、第二金属部材２１０の表面２１１は、第一金属部材２０２の表面２０３と面一になる。 In the lid groove closing step, as shown in FIG. 20B, the upper part of the heat medium pipe 216 is inserted into the second concave groove 245 formed in the second metal member 210, while the first metal member 202 is The second metal member 210 is disposed in the lid groove 206. At this time, the heat medium pipe 216 and the compatible surfaces 245a and 245b and the top surface 245c of the second concave groove 245 formed on the back surface 212 of the second metal member 210 are separated from each other with a fine gap. That is, the width of the space portion K1 formed by the first groove 238 and the second groove 245 is formed substantially equal to the outer diameter of the heat medium pipe 216, and the height H of the space K1 is The outer diameter of the heat medium pipe 216 is larger. Further, the surface 211 of the second metal member 210 is flush with the surface 203 of the first metal member 202.
　ここで、空間部Ｋ１において、熱媒体用管２１６の周囲に形成される空隙部のうち、流動方向Ｙ（図１４参照）に対して左上側に形成される部分を第一空隙部Ｐ２１とし、右上に形成される部分を第二空隙部Ｐ２２とする。 Here, in the space portion K1, the portion formed on the upper left side with respect to the flow direction Y (see FIG. 14) among the space portions formed around the heat medium pipe 216 is referred to as a first space portion P21. A portion formed at the upper right is defined as a second gap P22.
　（接合工程）
　次に、接合工程では、図２１の（ａ）に示すように、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０を用いて摩擦攪拌接合を行う。これにより、第一金属部材２０２と第二金属部材２１０とを接合することができる。 (Joining process)
Next, in a joining process, as shown to (a) of FIG. 21, friction stir welding is performed using the rotation tool 50 for joining along the abutting parts V21 and V22. Thereby, the 1st metal member 202 and the 2nd metal member 210 can be joined.
　（表面側流入攪拌工程）
　次に、表面側流入攪拌工程では、図２１の（ｂ）及び（ｃ）に示すように、第二金属部材２１０の表面２１１から第二凹溝２４５に沿って摩擦攪拌を行う。表面側流入攪拌工程は、本実施形態では、第一空隙部Ｐ２１に塑性流動材Ｑを流入させる第一表面側流入攪拌工程と、第二空隙部Ｐ２２に塑性流動材Ｑを流入させる第二表面側流入攪拌工程とを含む。 (Surface-side inflow stirring process)
Next, in the surface-side inflow stirring step, as shown in FIGS. 21B and 21C, friction stirring is performed from the surface 211 of the second metal member 210 along the second concave groove 245. In the present embodiment, the surface-side inflow agitation step includes a first surface-side inflow agitation step for causing the plastic fluid material Q to flow into the first gap P21, and a second surface for causing the plastic fluid material Q to flow into the second gap P22. Side inflow stirring step.
　第一表面側流入攪拌工程では、第二金属部材２１０の表面２１１から高速回転する流入攪拌用回転ツール５５を押し込み、第二凹溝２４５に沿って平面視Ｕ字状を呈するように、流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部を第一空隙部Ｐ２１と重ねるとともに、摩擦攪拌によって形成される塑性化領域Ｗ２３が塑性化領域Ｗ２１，Ｗ２２を含むように移動する。即ち、第一表面側流入攪拌工程では、接合工程で形成された塑性化領域Ｗ２１，Ｗ２２上を、表面側流入攪拌工程において流入攪拌用回転ツール５５が移動し、塑性化領域Ｗ２１，Ｗ２２を再攪拌する。 In the first surface side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed from the surface 211 of the second metal member 210 is pushed in, and the inflow agitation is formed so as to exhibit a U shape in plan view along the second concave groove 245. The rotary tool 55 is moved. In the inflow stirring rotary tool 55, a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 is overlapped with the first gap P21, and the plasticized region W23 formed by friction stirring is the plasticized regions W21, W22. Move to include. That is, in the first surface side inflow agitation step, the inflow agitation rotating tool 55 moves in the surface side inflow agitation step on the plasticization regions W21 and W22 formed in the joining step, and the plasticization regions W21 and W22 are re-applied. Stir.
　このとき、高速回転するピン５８により、その周囲の第二金属部材２１０及び第一金属部材２０２のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。第七実施形態では、流入攪拌用回転ツール５５の先端が、蓋溝２０６の底面２０６ｃよりも下方に位置するように押し込まれているため、塑性流動化された塑性流動材Ｑは、第一空隙部Ｐ２１に確実に流入し熱媒体用管２１６と接触する。 At this time, the aluminum alloy material of the surrounding second metal member 210 and the first metal member 202 is heated by frictional heat and plastically fluidized by the pin 58 rotating at a high speed. In the seventh embodiment, since the tip of the inflow stirring rotary tool 55 is pushed so as to be positioned below the bottom surface 206c of the lid groove 206, the plastic fluidized material Q plasticized is the first gap. It surely flows into the part P21 and comes into contact with the heat medium pipe 216.
　ここで、図２１の（ｂ）に示すように、熱媒体用管２１６の上端は、第二凹溝２４５と微細な隙間をあけて配置されているが、塑性流動材Ｑが第一空隙部Ｐ２１に流れ込むと、塑性流動材Ｑの熱が熱媒体用管２１６に奪われるため流動性が低下する。したがって、塑性流動材Ｑは、第二空隙部Ｐ２２には流入せずに、第一空隙部Ｐ２１に留まって充填され、硬化する。 Here, as shown in FIG. 21 (b), the upper end of the heat medium pipe 216 is arranged with a fine gap from the second concave groove 245, but the plastic fluid material Q is the first gap portion. When flowing into P21, the heat of the plastic fluidized material Q is taken away by the heat medium pipe 216, so that the fluidity is lowered. Therefore, the plastic fluid material Q does not flow into the second gap P22, but remains in the first gap P21, and is filled and cured.
　第二表面側流入攪拌工程では、図２１の（ｃ）に示すように、熱媒体用管２１６の流動方向Ｙ（図１４参照）に対して右上側に形成された第二空隙部Ｐ２２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２２に行うことを除いては、第一表面側流入攪拌工程と同等であるため説明を省略する。 In the second surface side inflow stirring step, as shown in FIG. 21C, the second gap P22 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 216 (see FIG. 14) is rubbed. The plastic fluid material Q plasticized by stirring is introduced. Since the second surface side inflow stirring step is the same as the first surface side inflow stirring step except that it is performed in the second gap P22, description thereof is omitted.
　以上説明した伝熱板の製造方法によれば、第一金属部材２０２に形成された第一凹溝２３８と、第二金属部材２１０の裏面２１２に形成された第二凹溝２４５からなる空間部Ｋ１において、空間部Ｋ１の高さを熱媒体用管２１６の外径よりも大きく形成したため、熱媒体用管２１６の一部が湾曲している場合であっても、蓋溝閉塞工程を容易に行うことができる。 According to the manufacturing method of the heat transfer plate described above, the space portion including the first groove 238 formed on the first metal member 202 and the second groove 245 formed on the back surface 212 of the second metal member 210. In K1, since the height of the space K1 is formed larger than the outer diameter of the heat medium pipe 216, the lid groove closing step can be easily performed even when a part of the heat medium pipe 216 is curved. It can be carried out.
　また、表面側流入攪拌工程により、熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１及び第二空隙部Ｐ２２に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板２３１の熱交換効率を高めることができる。また、第一金属部材２０２に形成された第一凹溝２３８と熱媒体用管２１６とを面接触させているため、第一金属部材２０２の裏面２０４からの流入攪拌工程を（裏面側流入攪拌工程）省略することができる。 In addition, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P21 and the second void portion P22 formed around the heat medium pipe 216 by the surface-side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate 231 can be increased. In addition, since the first concave groove 238 formed in the first metal member 202 and the heat medium pipe 216 are in surface contact, the inflow stirring process from the back surface 204 of the first metal member 202 is performed (back-side inflow stirring). Step) It can be omitted.
　また、表面側流入攪拌工程で形成される塑性化領域Ｗ２３の中に、接合工程で形成される塑性化領域Ｗ２１，Ｗ２２を含ませることで、伝熱板２３１の表面に露出する塑性化領域を小さくすることができる。 Further, by including the plasticized regions W21 and W22 formed in the joining step in the plasticized region W23 formed in the surface-side inflow stirring step, the plasticized region exposed to the surface of the heat transfer plate 231 is reduced. Can be small.
　なお、本実施形態では、第一凹溝２３８の幅を熱媒体用管２１６の外径と略同等に形成したが、これに限定されるものではなく、第一凹溝２３８の幅を熱媒体用管２１６の外径よりも大きく形成してもよい。また、底部２３７の曲率を熱媒体用管２１６の曲率よりも小さくなるように形成してもよい。これにより、熱媒体用管２１６を挿入する挿入工程や、第二金属部材２１０を配置する蓋溝閉塞工程を容易に行うことができる。 In the present embodiment, the width of the first concave groove 238 is formed substantially equal to the outer diameter of the heat medium pipe 216, but the present invention is not limited to this, and the width of the first concave groove 238 is equal to the heat medium. You may form larger than the outer diameter of the pipe 216 for work. Further, the curvature of the bottom portion 237 may be formed to be smaller than the curvature of the heat medium pipe 216. Thereby, the insertion process which inserts the pipe | tube 216 for heat media, and the cover groove | channel obstruction | occlusion process which arrange | positions the 2nd metal member 210 can be performed easily.
[第八実施形態]
　次に、本発明の第八実施形態について説明する。第八実施形態に係る伝熱板の製造方法は、第一凹溝２５８及び第二凹溝２６５が共に曲面で形成されている点で第六実施形態と相違する。具体的な図示はしないが、熱媒体用管２１６は、第六実施形態と同様に平面視Ｕ字状を呈するものとする。 [Eighth embodiment]
Next, an eighth embodiment of the present invention will be described. The method for manufacturing a heat transfer plate according to the eighth embodiment is different from the sixth embodiment in that both the first groove 258 and the second groove 265 are curved. Although not specifically illustrated, it is assumed that the heat medium pipe 216 has a U-shape in plan view as in the sixth embodiment.
　第八実施形態に係る伝熱板の製造方法は、図２２に示すように、第一金属部材２０２及び第二金属部材２６０を形成するとともに、第一金属部材２０２に熱媒体用管２１６及び第二金属部材２１０を配置する準備工程と、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材２６０の表面２６１で、第二凹溝２６５に沿って流入攪拌用回転ツール５５を移動させて熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１及び第二空隙部Ｐ２２に摩擦熱によって塑性流動化させた塑性流動材を流入させる表面側流入攪拌工程を含むものである。 As shown in FIG. 22, the manufacturing method of the heat transfer plate according to the eighth embodiment forms the first metal member 202 and the second metal member 260, and the heat medium pipe 216 and the first metal member 202 on the first metal member 202. In the preparatory step of arranging the two metal members 210, the joining step of moving the joining rotary tool 50 along the abutting portions V21 and V22 to perform friction stir welding, and the surface 261 of the second metal member 260, the second concave The inflow stirring rotary tool 55 is moved along the groove 265, and the plastic fluidized material plastically fluidized by frictional heat in the first gap P21 and the second gap P22 formed around the heat medium pipe 216 is obtained. It includes a front-side inflow stirring step for inflow.
　（準備工程）
　準備工程は、第一金属部材２０２及び第二金属部材２６０を形成する切削工程と、第一金属部材２０２に形成された第一凹溝２５８に熱媒体用管２１６を挿入する挿入工程と、蓋溝２０６に第二金属部材２６０を配置する蓋溝閉塞工程を含む。 (Preparation process)
The preparation process includes a cutting process for forming the first metal member 202 and the second metal member 260, an insertion process for inserting the heat medium pipe 216 into the first concave groove 258 formed in the first metal member 202, and a lid. A lid groove closing step of disposing the second metal member 260 in the groove 206 is included.
　切削工程では、図２２の（ａ）に示すように、第一金属部材２０２に形成された蓋溝２０６の底面２０６ｃに第一凹溝２５８を形成する。第一凹溝２５８は、平面視Ｕ字状であって断面視半円形を呈する。第一凹溝２５８の半径は、熱媒体用管２１６の半径と同等に形成されている。
　また、第二金属部材２６０の裏面２６２に第二凹溝２６５を形成する。第二凹溝２６５は、下方に向けて開口しており、開口部の幅は、熱媒体用管２１６の外径と略同等に形成されている。また、第二凹溝２６５の天面２６５ｃの曲率は、熱媒体用管２１６の曲率よりも大きくなるように形成されている。 In the cutting process, as shown in FIG. 22A, the first concave groove 258 is formed on the bottom surface 206c of the lid groove 206 formed in the first metal member 202. The first concave groove 258 has a U shape in a plan view and has a semicircular shape in a sectional view. The radius of the first concave groove 258 is formed to be equal to the radius of the heat medium pipe 216.
Further, the second concave groove 265 is formed on the back surface 262 of the second metal member 260. The second concave groove 265 is opened downward, and the width of the opening is formed substantially equal to the outer diameter of the heat medium pipe 216. Further, the curvature of the top surface 265c of the second concave groove 265 is formed to be larger than the curvature of the heat medium pipe 216.
　挿入工程では、図２２の（ｂ）に示すように、第一凹溝２５８に熱媒体用管２１６の下半部を挿入する。熱媒体用管２１６の下半部は、第一凹溝２５８に面接触する。 In the insertion step, the lower half of the heat medium pipe 216 is inserted into the first concave groove 258 as shown in FIG. The lower half of the heat medium pipe 216 is in surface contact with the first concave groove 258.
　蓋溝閉塞工程では、図２２の（ｂ）に示すように、熱媒体用管２１６の上半部を第二金属部材２６０に形成された第二凹溝２６５に挿入しつつ、蓋溝２０６に第二金属部材２６０を挿入する。第一凹溝２５８と第二凹溝２６５とを重ね合わせて形成された空間部Ｋ２の高さＨは、熱媒体用管２１６の外径よりも大きくなるように形成されている。
　ここで、熱媒体用管２１６の周囲に形成される空隙部のうち、流動方向Ｙ（図１４参照）に対して左上側に形成される部分を第一空隙部Ｐ２１とし、右上側に形成される部分を第二空隙部Ｐ２２とする。また、第二金属部材２６０の表面２６１が、第一金属部材２０２の表面２０３と面一になる。 In the lid groove closing step, as shown in FIG. 22B, the upper half of the heat medium pipe 216 is inserted into the second concave groove 265 formed in the second metal member 260, and the lid groove 206 is inserted into the lid groove 206. The second metal member 260 is inserted. The height H of the space K2 formed by overlapping the first concave groove 258 and the second concave groove 265 is formed to be larger than the outer diameter of the heat medium pipe 216.
Here, of the gap formed around the heat medium pipe 216, the portion formed on the upper left side with respect to the flow direction Y (see FIG. 14) is defined as the first gap P21, and is formed on the upper right side. This portion is referred to as a second gap P22. Further, the surface 261 of the second metal member 260 is flush with the surface 203 of the first metal member 202.
　（接合工程）
　次に、図２２の（ｂ）に示すように、接合用回転ツール５０を用いて突合部Ｖ２１，Ｖ２２に沿って摩擦攪拌接合を行う。これにより、第一金属部材２０２と第二金属部材２６０とを接合することができる。 (Joining process)
Next, as shown in FIG. 22 (b), friction stir welding is performed along the abutting portions V <b> 21 and V <b> 22 using the welding rotary tool 50. Thereby, the 1st metal member 202 and the 2nd metal member 260 can be joined.
　（表面側流入攪拌工程）
　次に、図２２の（ｃ）に示すように、第二金属部材２６０の表面２６１から第二凹溝２６５に沿って摩擦攪拌を行う。表面側流入攪拌工程は、本実施形態では、第一空隙部Ｐ２１に塑性流動材Ｑを流入させる第一表面側流入攪拌工程と、第二空隙部Ｐ２２に塑性流動材Ｑを流入させる第二表面側流入攪拌工程とを含む。 (Surface-side inflow stirring process)
Next, as shown in FIG. 22C, friction stirring is performed along the second concave groove 265 from the surface 261 of the second metal member 260. In the present embodiment, the surface-side inflow agitation step includes a first surface-side inflow agitation step for causing the plastic fluid material Q to flow into the first gap P21, and a second surface for causing the plastic fluid material Q to flow into the second gap P22. Side inflow stirring step.
　第一表面側流入攪拌工程における摩擦攪拌では、第二金属部材２６０の表面２６１から高速回転する流入攪拌用回転ツール５５を押し込み、第二凹溝２６５に沿って平面視Ｕ字状を呈するように、流入攪拌用回転ツール５５を移動させる。流入攪拌用回転ツール５５は、ツール本体５６の底面５７（ショルダ）の投影部分の一部が第一空隙部Ｐ２１と重なるように移動する。このとき、高速回転するピン５８により、その周囲の第二金属部材２６０のアルミニウム合金材料は、摩擦熱によって加熱され塑性流動化される。流入攪拌用回転ツール５５は、所定の深さで押し込まれているため、塑性流動化された塑性流動材Ｑが第一空隙部Ｐ２１に流入し熱媒体用管２１６と接触する。 In the friction agitation in the first surface side inflow agitation step, the inflow agitation rotating tool 55 that rotates at a high speed is pushed from the surface 261 of the second metal member 260 so as to exhibit a U shape in plan view along the second concave groove 265. Then, the rotating tool 55 for inflow stirring is moved. The inflow stirring rotary tool 55 moves so that a part of the projected portion of the bottom surface 57 (shoulder) of the tool body 56 overlaps the first gap P21. At this time, the aluminum alloy material of the surrounding second metal member 260 is heated by frictional heat and plastically fluidized by the pin 58 rotating at a high speed. Since the inflow and stirring rotary tool 55 is pushed in at a predetermined depth, the plastic fluidized material Q plastically fluidized flows into the first gap P21 and contacts the heat medium pipe 216.
　第二表面側流入攪拌工程では、熱媒体用管２１６の流動方向Ｙ（図１４参照）に対して右上側に形成された第二空隙部Ｐ２２に摩擦攪拌によって塑性流動化された塑性流動材Ｑを流入させる。第二表面側流入攪拌工程は、第二空隙部Ｐ２２に行うことを除いては、第一表面側流入攪拌工程と同等であるため、説明を省略する。表面側流入攪拌工程が終了したら、第二金属部材２６０の表面２６１に形成されたバリを切削除去して平滑にするのが好ましい。 In the second surface side inflow stirring step, the plastic fluid material Q plastically fluidized by friction stirring in the second gap P22 formed on the upper right side with respect to the flow direction Y of the heat medium pipe 216 (see FIG. 14). Inflow. The second surface side inflow stirring step is the same as the first surface side inflow stirring step except that the second surface side inflow stirring step is performed in the second gap P22, and thus the description thereof is omitted. When the front-side inflow stirring step is completed, it is preferable that the burrs formed on the surface 261 of the second metal member 260 are removed by cutting and smoothing.
　以上説明した伝熱板の製造方法によれば、第一凹溝２５８及び第二凹溝２６５をともに曲面となるように形成したとしても、第一凹溝２５８と第二凹溝２６５とで形成される空間部Ｋ２の高さＨを熱媒体用管２１６の外径よりも大きく形成しているため、熱媒体用管２１６の一部が湾曲している場合であっても、蓋溝閉塞工程を容易に行うことができる。
　また、表面側流入攪拌工程により、熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１及び第二空隙部Ｐ２２に塑性流動材Ｑを流入させることで、当該空隙部を埋めることができるため、伝熱板２５１の熱交換効率を高めることができる。 According to the method for manufacturing a heat transfer plate described above, even if both the first groove 258 and the second groove 265 are curved, they are formed by the first groove 258 and the second groove 265. Since the height H of the space portion K2 formed is larger than the outer diameter of the heat medium pipe 216, the lid groove closing step is performed even when a part of the heat medium pipe 216 is curved. Can be easily performed.
In addition, the void portion can be filled by flowing the plastic fluid material Q into the first void portion P21 and the second void portion P22 formed around the heat medium pipe 216 by the surface-side inflow stirring step. Therefore, the heat exchange efficiency of the heat transfer plate 251 can be increased.
[第九実施形態]
　次に、本発明の第九実施形態について説明する。第九実施形態に係る伝熱板の製造方法は、前記した第六実施形態に係る伝熱板２０１と略同等の構造を内包し、第二金属部材２１０の表面側にさらに上蓋板２７０を配置して、摩擦攪拌接合を施して接合した点で第六実施形態と相違する。なお、前記した伝熱板２０１と同等の構造を以下、下蓋部Ｍともいう。また、第六実施形態に係る伝熱板２０１と重複する部材については、同等の符号を付し、重複する説明は省略する。 [Ninth embodiment]
Next, a ninth embodiment of the present invention will be described. The manufacturing method of the heat transfer plate according to the ninth embodiment includes a structure substantially equivalent to the heat transfer plate 201 according to the sixth embodiment described above, and further includes an upper lid plate 270 on the surface side of the second metal member 210. It is different from the sixth embodiment in that it is disposed and subjected to friction stir welding. Hereinafter, the structure equivalent to the above-described heat transfer plate 201 is also referred to as a lower lid portion M. Moreover, about the member which overlaps with the heat exchanger plate 201 which concerns on 6th embodiment, an equivalent code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.
　第九実施形態に係る伝熱板２８１は、図２３の（ａ）及び（ｂ）に示すように、第一金属部材２８２と、第一凹溝２０８及び第二凹溝２１５に挿入された熱媒体用管２１６と、第二金属部材２１０と、第二金属部材２１０の上側に配置された上蓋板２７０とを有し、摩擦攪拌接合により塑性化領域Ｗ２１～Ｗ２８で一体化されている。 As shown in FIGS. 23A and 23B, the heat transfer plate 281 according to the ninth embodiment includes heat that is inserted into the first metal member 282, the first groove 208, and the second groove 215. The medium pipe 216, the second metal member 210, and the upper lid plate 270 disposed on the upper side of the second metal member 210 are integrated in the plasticized regions W21 to W28 by friction stir welding.
　第一金属部材２８２は、例えばアルミニウム合金からなり、第一金属部材２８２の表面２８３に、長手方向に亘って形成された上蓋溝２７６と、上蓋溝２７６の底面２７６ｃに長手方向に亘って連続して形成された蓋溝２０６と、蓋溝２０６の底面に平面視Ｕ字状で断面視矩形に形成された第一凹溝２０８とを有する。上蓋溝２７６は、断面視矩形を呈し、底面２７６ｃから垂直に立ち上がる側壁２７６ａ，２７６ｂを備えている。上蓋溝２７６の幅は、蓋溝２０６の幅よりも大きく形成されている。上蓋溝２７６の底面２７６ｃは、塑性化領域Ｗ２３，Ｗ２４の生成後に、面削加工されて、塑性化領域Ｗ２３，Ｗ２４の表面（上面）と面一となっている。 The first metal member 282 is made of, for example, an aluminum alloy, and is continuous with the upper lid groove 276 formed in the longitudinal direction on the surface 283 of the first metal member 282 and the bottom surface 276c of the upper lid groove 276 in the longitudinal direction. A lid groove 206 formed on the bottom surface of the lid groove 206 and a first concave groove 208 formed in a U-shape in a plan view and in a rectangular shape in a sectional view. The upper lid groove 276 has a rectangular shape in sectional view, and includes side walls 276a and 276b that rise vertically from the bottom surface 276c. The width of the upper lid groove 276 is formed larger than the width of the lid groove 206. The bottom surface 276c of the upper lid groove 276 is chamfered after the plasticized regions W23 and W24 are generated, and is flush with the surfaces (upper surfaces) of the plasticized regions W23 and W24.
　熱媒体用管２１６は、第一凹溝２０８及び第二凹溝２１５で形成された空間部Ｋに挿入されている。また、第二金属部材２１０の表面２１１及び第一金属部材２０２の裏面２８４から摩擦攪拌が施されて、熱媒体用管２１６の周囲に形成された第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材が流入されている。即ち、第一金属部材２８２の内部に形成された下蓋部Ｍは、第六実施形態に係る伝熱板２０１と略同等の構成を備えている。 The heat medium pipe 216 is inserted into the space K formed by the first concave groove 208 and the second concave groove 215. Further, friction stir is applied from the front surface 211 of the second metal member 210 and the back surface 284 of the first metal member 202, so that the first gap portion P 21 to the fourth gap portion P 24 formed around the heat medium pipe 216. A plastic fluid is flowing in. That is, the lower lid portion M formed inside the first metal member 282 has a configuration substantially equivalent to that of the heat transfer plate 201 according to the sixth embodiment.
　上蓋板２７０は、図２３の（ａ）及び（ｂ）に示すように、例えば、アルミニウム合金からなり、上蓋溝２７６の断面と略同じ矩形断面に形成されている。上蓋板２７０は、上蓋溝２７６に配置される部材であって、表面２７１と、裏面２７２と、この裏面２７２から垂直に形成された側面２７３ａ及び側面２７３ｂとを有する。即ち、上蓋板２７０の側面２７３ａ，２７３ｂは、上蓋溝２７６の側壁２７６ａ，２７６ｂと面接触されるか又は微細な隙間をあけて配置されている。ここで、側面２７３ａと側壁２７６ａとの突合せ部を「突合部Ｖ２７」とし、側面２７３ｂと側壁２７６ｂとの突合せ部を「突合部Ｖ２８」とする。突合部Ｖ２７，Ｖ２８は、摩擦攪拌接合により、塑性化領域Ｗ２７，Ｗ２８で一体化されている。 As shown in FIGS. 23A and 23B, the upper lid plate 270 is made of, for example, an aluminum alloy and has a rectangular cross section substantially the same as the cross section of the upper lid groove 276. The upper lid plate 270 is a member disposed in the upper lid groove 276 and has a front surface 271, a back surface 272, and a side surface 273 a and a side surface 273 b formed perpendicularly from the back surface 272. That is, the side surfaces 273a and 273b of the upper lid plate 270 are in surface contact with the side walls 276a and 276b of the upper lid groove 276 or are arranged with a fine gap. Here, the abutting portion between the side surface 273a and the side wall 276a is referred to as “abutting portion V27”, and the abutting portion between the side surface 273b and the side wall 276b is referred to as “abutting portion V28”. The abutting portions V27 and V28 are integrated in the plasticized regions W27 and W28 by friction stir welding.
　伝熱板２８１の製造方法は、伝熱板２０１と同等の製造方法により、第一金属部材２８２の下部に下蓋部Ｍを形成した後、上蓋板２７０を挿入する上蓋溝閉塞工程と、突合部Ｖ２７，Ｖ２８に沿って摩擦攪拌接合を行う上蓋接合工程を含むものである。 The manufacturing method of the heat transfer plate 281 is an upper cover groove closing step of inserting the upper cover plate 270 after forming the lower cover portion M at the lower part of the first metal member 282 by a manufacturing method equivalent to the heat transfer plate 201, It includes an upper lid joining step in which friction stir welding is performed along the abutting portions V27 and V28.
　上蓋溝閉塞工程では、下蓋部Ｍを形成した後、上蓋溝２７６に上蓋板２７０を配置する。この際、上蓋溝２７６の底面２７６ｃ、第二金属部材２１０及び塑性化領域Ｗ２１～Ｗ２４の表面は、前記した接合工程及び表面側流入攪拌工程により凹凸しているので、面削加工を施して平滑にすることが好ましい。 In the upper lid groove closing step, after the lower lid portion M is formed, the upper lid plate 270 is disposed in the upper lid groove 276. At this time, the bottom surface 276c of the upper cover groove 276, the second metal member 210, and the surfaces of the plasticized regions W21 to W24 are uneven due to the above-described joining step and surface side inflow stirring step. It is preferable to make it.
　上蓋接合工程は、突合部Ｖ２７，Ｖ２８に沿って回転ツール（図示せず）を移動させて摩擦攪拌接合を行う。上蓋接合工程における回転ツールの埋設深さは、ピンの長さ及び上蓋板２７０の厚み等の各種条件によって、適宜設定すればよい。 In the upper lid joining step, friction stir welding is performed by moving a rotary tool (not shown) along the abutting portions V27 and V28. What is necessary is just to set suitably the embedding depth of the rotation tool in an upper cover joining process according to various conditions, such as the length of a pin and the thickness of the upper cover board 270. FIG.
　実施形態に係る伝熱板２８１によれば、下蓋部Ｍの上方にさらに上蓋板２７０を配置して、摩擦攪拌接合を行うことにより、より深い位置に熱媒体用管２１６を配置させることができる。 According to the heat transfer plate 281 according to the embodiment, the upper cover plate 270 is further disposed above the lower cover portion M, and the heat medium pipe 216 is disposed at a deeper position by performing friction stir welding. Can do.
[第十実施形態]
　次に、本発明の第十実施形態について説明する。第十実施形態に係る伝熱板の製造方法は、第一金属部材に凹溝が形成されていない点で第六実施形態と相違する。また、具体的な図示はしないが、熱媒体用管２１６は、第六実施形態と同様に平面視Ｕ字状を呈するものとする。 [Tenth embodiment]
Next, a tenth embodiment of the present invention will be described. The method for manufacturing a heat transfer plate according to the tenth embodiment is different from the sixth embodiment in that a concave groove is not formed in the first metal member. Although not specifically illustrated, the heat medium pipe 216 has a U-shape in plan view as in the sixth embodiment.
　第十実施形態に係る伝熱板の製造方法は、図２４及び図２５に示すように、第一金属部材３３２及び第二金属部材３３３を形成するとともに、第二金属部材３３３に第一金属部材３３２を配置する準備工程と、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０（図１７参照）を移動させて摩擦攪拌接合を行う接合工程と、第二金属部材３３３の表面３３７側及び第一金属部材３３２の裏面３４０から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材Ｑを流入させる流入攪拌工程とを含む。 As shown in FIGS. 24 and 25, the manufacturing method of the heat transfer plate according to the tenth embodiment forms the first metal member 332 and the second metal member 333, and the second metal member 333 includes the first metal member. 332, a preparatory step of arranging the 332, a joining step of moving the joining rotary tool 50 (see FIG. 17) along the abutting portions V21 and V22 to perform friction stir welding, a surface 337 side of the second metal member 333 and the first side An inflow agitation step in which the inflow agitation rotating tool 55 is moved from the back surface 340 of the one metal member 332 and the plastic fluid material Q is introduced into the first gap part P21 to the fourth gap part P24.
　（準備工程）
　準備工程では、切削工程と、挿入工程と、蓋溝閉塞工程と、を行う。切削工程では、図２４の（ａ）に示すように、公知の切削加工により、板厚部材に蓋溝３３４を切り欠いて第一金属部材３３２を形成する。蓋溝３３４は、第二金属部材３３３が挿入されるように第二金属部材３３３の断面形状と略同等に形成する。
　また、切削工程では、板厚部材に断面視矩形であって第一金属部材３３２に向けて開口する第二凹溝３３５を切り欠いて第二金属部材３３３を形成する。第二凹溝３３５の深さ及び幅は、熱媒体用管２１６よりも大きく形成されている。 (Preparation process)
In the preparation process, a cutting process, an insertion process, and a lid groove closing process are performed. In the cutting process, as shown in FIG. 24A, the first metal member 332 is formed by notching the cover groove 334 in the plate thickness member by a known cutting process. The lid groove 334 is formed substantially the same as the cross-sectional shape of the second metal member 333 so that the second metal member 333 is inserted.
Further, in the cutting process, the second metal member 333 is formed by cutting out the second concave groove 335 which is rectangular in a sectional view and opens toward the first metal member 332 in the plate thickness member. The depth and width of the second concave groove 335 are formed larger than the heat medium pipe 216.
　挿入工程では、図２４の（ａ）に示すように、第二金属部材３３３の第二凹溝３３５に熱媒体用管２１６を挿入する。 In the insertion step, the heat medium pipe 216 is inserted into the second concave groove 335 of the second metal member 333 as shown in FIG.
　蓋溝閉塞工程では、図２４の（ａ）及び（ｂ）に示すように、第二金属部材３３３の上方から第一金属部材３３２を挿入するとともに、第一金属部材３３２、第二金属部材３３３及び熱媒体用管２１６からなる仮組構造体の表裏を逆にする。第二凹溝３３５と蓋溝３３４の底面３３４ｃとで形成された空間部Ｋには熱媒体用管２１６が挿入されている。この際、図２４の（ｂ）に示すように、熱媒体用管２１６の下端は、蓋溝３３４の底面３３４ｃと接触し、上端は、第二凹溝３３５の天面３３５ｃと離間する。また、熱媒体用管２１６の左右端は、第二凹溝３３５の立面３３５ａ，３３５ｂと離間する。
　なお、第一金属部材３３２の蓋溝３３４の側壁３３４ａと、第二金属部材３３３の側面３３３ａとで突合部Ｖ２１が形成される。また、第一金属部材３３２の蓋溝３３４の側壁３３４ｂと、第二金属部材３３３の側面３３３ｂとで突合部Ｖ２２が形成される。 In the lid groove closing step, as shown in FIGS. 24A and 24B, the first metal member 332 is inserted from above the second metal member 333, and the first metal member 332 and the second metal member 333 are inserted. And the front and back of the temporary assembly structure composed of the heat medium pipe 216 are reversed. A heat medium pipe 216 is inserted into a space K formed by the second concave groove 335 and the bottom surface 334c of the lid groove 334. At this time, as shown in FIG. 24B, the lower end of the heat medium pipe 216 is in contact with the bottom surface 334c of the lid groove 334, and the upper end is separated from the top surface 335c of the second concave groove 335. Further, the left and right ends of the heat medium pipe 216 are separated from the rising surfaces 335 a and 335 b of the second concave groove 335.
The abutting portion V21 is formed by the side wall 334a of the lid groove 334 of the first metal member 332 and the side surface 333a of the second metal member 333. Further, the abutting portion V22 is formed by the side wall 334b of the lid groove 334 of the first metal member 332 and the side surface 333b of the second metal member 333.
　（接合工程）
　接合工程では、図２４の（ｂ）及び（ｃ）に示すように、突合部Ｖ２１，Ｖ２２に沿って接合用回転ツール５０（図１７参照）を用いて摩擦攪拌接合を行う。接合工程については、前記した第六実施形態の接合工程と同様であるため詳細な説明を省略する。 (Joining process)
In the joining step, as shown in FIGS. 24B and 24C, friction stir welding is performed using the joining rotary tool 50 (see FIG. 17) along the abutting portions V21 and V22. Since the joining process is the same as the joining process of the sixth embodiment described above, detailed description is omitted.
　（流入攪拌工程）
　流入攪拌工程では、第一金属部材３３２、熱媒体用管２１６及び第二金属部材３３３からなる仮組構造体の表面（第二金属部材３３３側）及び裏面（第一金属部材３３２側）から流入攪拌用回転ツール５５を移動させて第一空隙部Ｐ２１～第四空隙部Ｐ２４に塑性流動材Ｑを流入させる。
　流入攪拌工程については第六実施形態に係る流入攪拌工程と略同等であるため詳細な説明を省略する。図２５に示すように、流入攪拌工程を行うことにより、伝熱板３４５が形成される。 (Inflow stirring process)
In the inflow stirring step, inflow from the front surface (second metal member 333 side) and back surface (first metal member 332 side) of the temporary assembly structure including the first metal member 332, the heat medium pipe 216, and the second metal member 333. The stirring fluid tool 55 is moved to cause the plastic fluid Q to flow into the first gap P21 to the fourth gap P24.
Since the inflow stirring process is substantially the same as the inflow stirring process according to the sixth embodiment, detailed description thereof is omitted. As shown in FIG. 25, the heat transfer plate 345 is formed by performing the inflow stirring step.
　以上説明した第十実施形態に係る製造方法によれば、蓋溝３３４に凹溝を設けず、第二金属部材３３３のみに第二凹溝３３５を設ける場合であっても、第二凹溝３３５の幅及び深さを熱媒体用管２１６の外径より大きく形成することで、第六実施形態と略同等の効果を得ることができる。 According to the manufacturing method according to the tenth embodiment described above, even if the lid groove 334 is not provided with a concave groove and the second metal groove 335 is provided only on the second metal member 333, the second concave groove 335 is provided. By forming the width and the depth of each of them larger than the outer diameter of the heat medium pipe 216, it is possible to obtain substantially the same effect as that of the sixth embodiment.
　なお、本実施形態では、前記したように伝熱板３４５を形成したが、これに限定されるものではない。例えば、第一金属部材３３２の蓋溝３３４を上方に向けた状態で、蓋溝３３４の底面３３４ｃに熱媒体用管２１６を配置した後に、第二金属部材３３３に形成された第二凹溝３３５に熱媒体用管２１６を挿入しつつ、第二金属部材３３３を配置してもよい。 In this embodiment, the heat transfer plate 345 is formed as described above, but the present invention is not limited to this. For example, the second groove 335 formed in the second metal member 333 after the heat medium pipe 216 is disposed on the bottom surface 334c of the cover groove 334 with the lid groove 334 of the first metal member 332 facing upward. The second metal member 333 may be disposed while the heat medium pipe 216 is inserted into the second metal member 333.
［第十一実施形態］
　次に、本発明の第十一実施形態について説明する。図２６に示すように、第十一実施形態に係る伝熱板４４５は、第一金属部材４０２には第一凹溝４０８を形成しているが、第二金属部材４１０には第二凹溝を形成していない点で第十実施形態と相違する。 [Eleventh embodiment]
Next, an eleventh embodiment of the present invention will be described. As shown in FIG. 26, in the heat transfer plate 445 according to the eleventh embodiment, the first metal member 402 has the first groove 408, but the second metal member 410 has the second groove. This is different from the tenth embodiment in that no is formed.
　第一金属部材４０２は、蓋溝４０６と、蓋溝４０６の底面４０６ｃに第一凹溝４０８とを備えている。第一凹溝４０８は、断面視Ｕ字状を呈し熱媒体用管２１６の下半部が面接触するように形成されている。また、第一凹溝４０８の高さは、熱媒体用管２１６の外径よりも大きく形成されている。 The first metal member 402 includes a cover groove 406 and a first groove 408 on the bottom surface 406c of the cover groove 406. The first concave groove 408 has a U shape in a sectional view and is formed so that the lower half of the heat medium pipe 216 is in surface contact. Further, the height of the first concave groove 408 is formed larger than the outer diameter of the heat medium pipe 216.
　第二金属部材４１０は、板状部材であって、第一金属部材４０２の蓋溝４０６に配置される。第一金属部材４０２と第二金属部材４１０は、突合部Ｖ２１，Ｖ２２でそれぞれ摩擦攪拌接合されている。 The second metal member 410 is a plate-like member and is disposed in the lid groove 406 of the first metal member 402. The first metal member 402 and the second metal member 410 are friction stir welded at the abutting portions V21 and V22, respectively.
　熱媒体用管２１６の周囲に形成される第一空隙部Ｐ１及び第二空隙部Ｐ２には、流入攪拌工程によって塑性流動材が流入されている。つまり、第二金属部材４１０の表面から流入攪拌用回転ツール５５を挿入して、第一金属部材４０２及び第二金属部材４１０を塑性流動化させて、第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材を流入させる。第二金属部材４１０の表面には、塑性化領域Ｗ２３，Ｗ２４が形成される。これにより、熱媒体用管２１６の周囲の空隙を埋めることができる。また、第一凹溝４０８の高さは、熱媒体用管２１６の外径よりも大きく形成されているので、第一金属部材４０２に熱媒体用管２１６及び第二金属部材４１０を配置する作業を容易に行うことができる。 The plastic fluidized material is introduced into the first gap P1 and the second gap P2 formed around the heat medium pipe 216 by the inflow stirring process. That is, the rotation tool 55 for agitation and agitation is inserted from the surface of the second metal member 410 to plastically fluidize the first metal member 402 and the second metal member 410, and the first gap portion P1 and the second gap portion P2. A plastic fluidized material is allowed to flow into. Plasticized regions W <b> 23 and W <b> 24 are formed on the surface of the second metal member 410. Thereby, the space | gap around the pipe | tube 216 for heat media can be filled up. Further, since the height of the first concave groove 408 is formed larger than the outer diameter of the heat medium tube 216, the operation of arranging the heat medium tube 216 and the second metal member 410 on the first metal member 402. Can be easily performed.
　なお、第十一実施形態では、流入攪拌工程の際に、流入攪拌用回転ツール５５の先端が、第一金属部材４０２と第二金属部材４１０との界面に達するように設定することが好ましい。これにより、第一金属部材４０２と第二金属部材４１０とを接合することができるとともに、第一空隙部Ｐ１及び第二空隙部Ｐ２に塑性流動材を確実に流入させることができる。 In the eleventh embodiment, it is preferable that the tip of the inflow stirring rotary tool 55 is set to reach the interface between the first metal member 402 and the second metal member 410 during the inflow stirring step. Thereby, while being able to join the 1st metal member 402 and the 2nd metal member 410, a plastic fluid material can be reliably made to flow in into the 1st space part P1 and the 2nd space part P2.
[第十二実施形態]
　次に、本発明の第十二実施形態について説明する。第十二実施形態に係る伝熱板の製造方法は、第十実施形態に係る伝熱板３４５（図２５参照）と略同等の構造を内包し、第二金属部材３３３の表面３３７側にさらに上蓋板３７０を配置して、摩擦攪拌接合を施して接合した点で第十実施形態と相違する。 [Twelfth embodiment]
Next, a twelfth embodiment of the present invention will be described. The manufacturing method of the heat transfer plate according to the twelfth embodiment includes a structure substantially equivalent to the heat transfer plate 345 (see FIG. 25) according to the tenth embodiment, and further on the surface 337 side of the second metal member 333. It differs from the tenth embodiment in that the upper lid plate 370 is disposed and subjected to friction stir welding.
　第十二実施形態に係る伝熱板３５０は、第一金属部材３３２と、第二金属部材３３３と、第二金属部材３３３の第二凹溝３３５に挿入された熱媒体用管２１６と、第二金属部材３３３の上側に配置された上蓋板３７０とを有し、塑性化領域Ｗ２１～Ｗ２８で摩擦攪拌接合により一体化されている。 The heat transfer plate 350 according to the twelfth embodiment includes a first metal member 332, a second metal member 333, a heat medium pipe 216 inserted into the second concave groove 335 of the second metal member 333, And an upper cover plate 370 disposed on the upper side of the bimetallic member 333, and integrated by friction stir welding in the plasticized regions W21 to W28.
　第一金属部材３３２は、第二金属部材３３３を収容する蓋溝３３４の上方にさらに、上蓋溝３７６を備えている。上蓋溝３７６には、上蓋溝３７６と略同等の断面形状からなる上蓋板３７０が配置されている。上蓋溝３７６の側壁と上蓋板３７０との側面との突合部Ｖ２７，Ｖ２８は摩擦攪拌接合により一体化されている。 The first metal member 332 further includes an upper lid groove 376 above the lid groove 334 that accommodates the second metal member 333. In the upper lid groove 376, an upper lid plate 370 having a cross-sectional shape substantially equivalent to that of the upper lid groove 376 is disposed. The abutting portions V27 and V28 of the side wall of the upper lid groove 376 and the side surface of the upper lid plate 370 are integrated by friction stir welding.
　第十二実施形態に係る伝熱板３５０は、第十実施形態に係る伝熱板３４５の構成を内包する点を除いては、第九実施形態と略同等であるため詳細な説明を省略する。第十二実施形態によれば、熱媒体用管２１６をより深い位置に配置することができる。 The heat transfer plate 350 according to the twelfth embodiment is substantially the same as the ninth embodiment except that the configuration of the heat transfer plate 345 according to the tenth embodiment is included, and thus detailed description thereof is omitted. . According to the twelfth embodiment, the heat medium pipe 216 can be disposed at a deeper position.
　以上、本発明に係る実施形態について説明したが、これに限定されるものではなく本発明の趣旨を逸脱しない範囲において、適宜変更が可能である。 As mentioned above, although embodiment which concerns on this invention was described, it is not limited to this, In the range which does not deviate from the meaning of this invention, it can change suitably.
　１　　　伝熱板
　２　　　第一金属部材
　３　　　第二金属部材
　４　　　熱媒体用管
　５　　　第一凹溝
　６　　　第二凹溝
　５０　　接合用回転ツール
　５５　　流入攪拌用回転ツール
　２０２　第一金属部材
　２０６　蓋溝
　２０８　第一凹溝
　２１０　第二金属部材
　２１５　第二凹溝
　２１６　熱媒体用管
　Ｋ　　　空間部
　Ｌ　　　最近接距離
　Ｐ　　　空隙部
　Ｑ　　　塑性流動材
　Ｕ　　　仮組構造体
　Ｖ　　　突合部
　Ｗ　　　塑性化領域 DESCRIPTION OF SYMBOLS 1 Heat-transfer plate 2 1st metal member 3 2nd metal member 4 Heat medium pipe 5 1st groove 6 Second groove 50 Joining rotary tool 55 Inflow stirring rotary tool 202 1st metal member 206 Cover groove 208 1st One concave groove 210 Second metal member 215 Second concave groove 216 Heat medium pipe K Space portion L Nearest distance P Air gap portion Q Plastic fluidizing material U Temporary assembly structure V Butt portion W Plasticization region

Claims (20)

  1. 　第一金属部材及び第二金属部材のそれぞれに凹溝が形成されており、前記一対の凹溝同士によって中空の空間部が形成されるように前記第一金属部材と前記第二金属部材を突き合わせるとともに、前記空間部に熱媒体用管を挿入する準備工程と、
    　前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材の少なくともいずれか一方から回転する流入攪拌用回転ツールを挿入して前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、
    　前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする伝熱板の製造方法。     A concave groove is formed in each of the first metal member and the second metal member, and the first metal member and the second metal member are abutted so that a hollow space is formed by the pair of concave grooves. And a preparation step of inserting a heat medium pipe into the space part,
    Inserting and moving the rotating tool for inflow stirring that rotates from at least one of the first metal member and the second metal member of the temporary assembly formed in the preparation step, along the space portion, An inflow stirring step of flowing a plastic fluidized material plastically fluidized by frictional heat into a gap formed around the heat medium pipe,
    A method for manufacturing a heat transfer plate, wherein at least one of the width and the height of the space portion is set to be larger than an outer diameter of the heat medium pipe.
  2. 　第一金属部材及び第二金属部材のいずれか一方に凹溝が形成されており、前記第一金属部材及び前記第二金属部材の他方と前記凹溝とによって中空の空間部が形成されるように前記第一金属部材と前記第二金属部材を重ね合わせるとともに、前記空間部に熱媒体用管を挿入する準備工程と、
    　前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材のいずれか他方から挿入した流入攪拌用回転ツールを前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、
    　前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする伝熱板の製造方法。     A concave groove is formed in one of the first metal member and the second metal member, and a hollow space is formed by the other of the first metal member and the second metal member and the concave groove. And a step of superimposing the first metal member and the second metal member, and a step of inserting a heat medium pipe into the space portion,
    The inflow stirring rotary tool inserted from either the first metal member or the second metal member of the temporary assembly structure formed in the preparation step is moved along the space portion, and the heat medium pipe An inflow stirring step of flowing a plastic fluidized material plastically fluidized by frictional heat into a gap formed around
    A method for manufacturing a heat transfer plate, wherein at least one of the width and the height of the space portion is set to be larger than an outer diameter of the heat medium pipe.
  3. 　前記流入攪拌工程では、前記流入攪拌用回転ツールの先端と、前記熱媒体用管に接する仮想鉛直面との最近接距離を１～３ｍｍに設定することを特徴とする請求の範囲第１項又は第２項に記載の伝熱板の製造方法。 The inflow stirring step, wherein the closest distance between the tip of the inflow stirring rotary tool and the virtual vertical surface in contact with the heat medium pipe is set to 1 to 3 mm. The manufacturing method of the heat exchanger plate of Claim 2.
  4. 　前記流入攪拌工程では、前記流入攪拌用回転ツールの先端を、前記第一金属部材と前記第二金属部材とを突き合わせて形成された突合部よりも深く挿入することを特徴とする請求の範囲第１項又は第２項に記載の伝熱板の製造方法。 In the inflow stirring step, the tip of the inflow stirring rotating tool is inserted deeper than an abutting portion formed by abutting the first metal member and the second metal member. A method for producing a heat transfer plate according to item 1 or 2.
  5. 　前記第一金属部材と前記第二金属部材とを突き合わせて形成された突合部に沿って摩擦攪拌接合を行う接合工程をさらに含むことを特徴とする請求の範囲第１項又は第２項に記載の伝熱板の製造方法。 3. The joining method according to claim 1, further comprising a joining step in which friction stir welding is performed along an abutting portion formed by abutting the first metal member and the second metal member. Manufacturing method of heat transfer plate.
  6. 　前記接合工程では、前記突合部に沿って断続的に摩擦攪拌接合を行うことを特徴とする請求の範囲第５項に記載の伝熱板の製造方法。 The method for manufacturing a heat transfer plate according to claim 5, wherein in the joining step, friction stir welding is intermittently performed along the abutting portion.
  7. 　前記流入攪拌用回転ツールよりも小型の回転ツールを用いて前記接合工程を行うことを特徴とする請求の範囲第５項に記載の伝熱板の製造方法。 The method for manufacturing a heat transfer plate according to claim 5, wherein the joining step is performed using a rotating tool smaller than the rotating tool for inflow stirring.
  8. 　前記第一金属部材と前記第二金属部材とを突き合せて形成された突合部に沿って溶接を行う溶接工程をさらに含むことを特徴とする請求の範囲第１項又は第２項に記載の伝熱板の製造方法。 3. The welding method according to claim 1, further comprising a welding step of performing welding along an abutting portion formed by abutting the first metal member and the second metal member. Manufacturing method of heat transfer plate.
  9. 　前記溶接工程では、前記突合部に沿って断続的に溶接を行うことを特徴とする請求の範囲第８項に記載の伝熱板の製造方法。 The method for manufacturing a heat transfer plate according to claim 8, wherein in the welding step, welding is intermittently performed along the abutting portion.
  10. 　蓋溝の底面に凹溝が形成された第一金属部材と、裏面に凹溝が形成された第二金属部材とを有する伝熱板の製造方法であって、
    　前記凹溝同士で中空の空間部が形成されるように前記第一金属部材の蓋溝に前記第二金属部材を配置するとともに、前記空間部に熱媒体用管を挿入する準備工程と、
    　前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材の少なくともいずれか一方から流入攪拌用回転ツールを挿入して前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、
    　前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする伝熱板の製造方法。     A method of manufacturing a heat transfer plate having a first metal member having a groove formed on the bottom surface of the lid groove and a second metal member having a groove formed on the back surface,
    While arranging the second metal member in the lid groove of the first metal member so that a hollow space portion is formed between the concave grooves, a preparation step of inserting a heat medium pipe into the space portion;
    Inserting the rotating tool for inflow stirring from at least one of the first metal member and the second metal member of the temporary assembly formed in the preparation step, and moving the rotating tool along the space, the heat medium An inflow agitation step for flowing a plastic fluidized material plastically fluidized by frictional heat into a void formed around the pipe for use,
    A method for manufacturing a heat transfer plate, wherein at least one of the width and the height of the space portion is set to be larger than an outer diameter of the heat medium pipe.
  11. 　蓋溝が形成された第一金属部材と、第二金属部材とを有し、前記第一金属部材及び前記第二金属部材のいずれか一方に凹溝が形成された伝熱板の製造方法であって、
    　前記凹溝と前記第一金属部材及び前記第二金属部材のいずれか他方とで中空の空間部が形成されるように前記第一金属部材の蓋溝に前記第二金属部材を配置するとともに、前記空間部に熱媒体用管を挿入する準備工程と、
    　前記準備工程で形成された仮組構造体の前記第一金属部材及び前記第二金属部材のいずれか他方から挿入した流入攪拌用回転ツールを前記空間部に沿って移動させ、前記熱媒体用管の周囲に形成された空隙部に摩擦熱によって塑性流動化させた塑性流動材を流入させる流入攪拌工程と、を含み、
    　前記空間部の幅及び高さの少なくとも一方が、前記熱媒体用管の外径よりも大きくなるように設定することを特徴とする伝熱板の製造方法。     A method of manufacturing a heat transfer plate having a first metal member formed with a cover groove and a second metal member, wherein a concave groove is formed in one of the first metal member and the second metal member. There,
    While disposing the second metal member in the lid groove of the first metal member so that a hollow space is formed by the other of the concave groove and the first metal member and the second metal member, A preparation step of inserting a heat medium pipe into the space;
    The inflow stirring rotary tool inserted from either the first metal member or the second metal member of the temporary assembly structure formed in the preparation step is moved along the space portion, and the heat medium pipe An inflow stirring step of flowing a plastic fluidized material plastically fluidized by frictional heat into a gap formed around
    A method for manufacturing a heat transfer plate, wherein at least one of the width and the height of the space portion is set to be larger than an outer diameter of the heat medium pipe.
  12. 　前記流入攪拌工程では、前記流入攪拌用回転ツールの先端と、前記熱媒体用管に接する仮想鉛直面との最近接距離を１～３ｍｍに設定することを特徴とする請求の範囲第１０項又は請求の範囲第１１項に記載の伝熱板の製造方法。 11. The inflow stirring step, wherein the closest distance between a tip of the inflow stirring rotating tool and a virtual vertical plane in contact with the heat medium pipe is set to 1 to 3 mm. The manufacturing method of the heat exchanger plate of Claim 11.
  13. 　前記流入攪拌工程では、前記流入攪拌用回転ツールの先端を、前記第一金属部材と前記第二金属部材との界面に達するように挿入することを特徴とする請求の範囲第１０項又は請求の範囲第１１項に記載の伝熱板の製造方法。 11. The inflow stirring step, wherein the tip of the inflow stirring rotary tool is inserted so as to reach the interface between the first metal member and the second metal member. The manufacturing method of the heat exchanger plate of a range 11th term | claim.
  14. 　前記第一金属部材の前記蓋溝の側壁と前記第二金属部材の側面との突合部に沿って摩擦攪拌接合を行う接合工程をさらに含むことを特徴とする請求の範囲第１０項又は請求の範囲第１１項に記載の伝熱板の製造方法。 11. The joining method according to claim 10, further comprising a joining step of performing friction stir welding along the abutting portion between a side wall of the lid groove of the first metal member and a side surface of the second metal member. The manufacturing method of the heat exchanger plate of a range 11th term | claim.
  15. 　前記接合工程では、前記第一金属部材の蓋溝の側壁と前記第二金属部材の側面との突合部に沿って断続的に摩擦攪拌接合を行うことを特徴とする請求の範囲第１４項に記載の伝熱板の製造方法。 15. In the joining step, the friction stir welding is intermittently performed along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. The manufacturing method of the heat-transfer board of description.
  16. 　前記流入攪拌用回転ツールよりも小型の回転ツールを用いて前記接合工程を行うことを特徴とする請求の範囲第１４項に記載の伝熱板の製造方法。 The method for manufacturing a heat transfer plate according to claim 14, wherein the joining step is performed using a rotating tool smaller than the rotating tool for inflow stirring.
  17. 　前記第一金属部材の前記蓋溝の側壁と前記第二金属部材の側面との突合部に沿って溶接を行う溶接工程をさらに含むことを特徴とする請求の範囲第１０項又は請求の範囲第１１項に記載の伝熱板の製造方法。 11. The welding method according to claim 10, further comprising a welding step of performing welding along the abutting portion between the side wall of the lid groove of the first metal member and the side surface of the second metal member. The manufacturing method of the heat exchanger plate of Claim 11.
  18. 　前記溶接工程では、前記突合部に沿って断続的に溶接を行うことを特徴とする請求の範囲第１７項に記載の伝熱板の製造方法。 The method for manufacturing a heat transfer plate according to claim 17, wherein in the welding step, welding is intermittently performed along the abutting portion.
  19. 　前記接合工程を前記流入攪拌工程よりも先に行う場合、
    　前記流入攪拌工程では、前記接合工程で形成された塑性化領域を、前記流入攪拌用回転ツールによって再攪拌することを特徴とする請求の範囲第１４項に記載の伝熱板の製造方法。     When performing the joining step before the inflow stirring step,
    The method for producing a heat transfer plate according to claim 14, wherein, in the inflow stirring step, the plasticized region formed in the joining step is re-stirred by the inflow stirring rotary tool.
  20. 　前記第一金属部材に開口する上蓋溝の底面に前記蓋溝を開口させておき、
    　前記流入攪拌工程後に、前記上蓋溝に上蓋板を配置する上蓋溝閉塞工程と、
    　前記上蓋溝の側壁と前記上蓋板の側面との突合部に沿って摩擦攪拌接合を行う上蓋接合工程と、をさらに含むことを特徴とする請求の範囲第１０項又は第１１項に記載の伝熱板の製造方法。     Opening the lid groove on the bottom surface of the upper lid groove opening in the first metal member,
    After the inflow stirring step, an upper lid groove closing step of disposing an upper lid plate in the upper lid groove;
    The upper lid joining step of performing friction stir welding along the abutting portion between the side wall of the upper lid groove and the side surface of the upper lid plate, further comprising: Manufacturing method of heat transfer plate.
PCT/JP2009/065474 2008-10-06 2009-09-04 Method of manufacturing heat transfer plate WO2010041529A1 (en)

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