US20080245516A1 - Heat exchanger plate - Google Patents

Heat exchanger plate Download PDF

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Publication number
US20080245516A1
US20080245516A1 US11/902,329 US90232907A US2008245516A1 US 20080245516 A1 US20080245516 A1 US 20080245516A1 US 90232907 A US90232907 A US 90232907A US 2008245516 A1 US2008245516 A1 US 2008245516A1
Authority
US
United States
Prior art keywords
groove
cover
main body
side faces
opposite side
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/902,329
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English (en)
Inventor
Soichiro Ishikawa
Haretaro Hidaka
Seiji Matsushima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD. reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HIDAKA, HARETARO, ISHIKAWA, SOICHIRO, MATSUSHIMA, SEIJI
Publication of US20080245516A1 publication Critical patent/US20080245516A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B23K20/1225—Particular aspects of welding with a non-consumable tool
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • 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

Definitions

  • the present invention relates to a heat exchanger plate comprising flow channels through which a cooling medium or heating medium passes.
  • heat exchanger plate is a backing plate used to hold a target material during a sputtering process of a liquid crystal manufacturing device (for example Japanese Patent No. 3,818,084).
  • Japanese Patent No. 3,818,084 proposes the use of the simplest cross-sectional shape (a rectangle) for the flow channel processed into the top face of the main body, in this case the weld is formed in the vicinity of the flow channel, which presents a danger of the penetration bead of the weld intruding into the flow channel.
  • an object of the present invention is to provide a heat exchanger plate in which the machine time required for processing can be shortened, and production costs can be reduced, and in which the penetration bead of the weld can be prevented from intruding into the flow channel, thereby preventing the weld from deforming the cover section.
  • the present invention employs the following means.
  • a heat exchanger plate comprises: a flat main body on a surface of which is formed at least one first groove having a rectangular cross-sectional shape; and a cover which has substantially the same shape as the first groove in plan view and which is formed such that when embedded in the first groove, a rear face thereof contacts a bottom of the first groove and opposite side faces thereof contact opposite side faces of the first groove, and a surface thereof is substantially flush with that of the main body, wherein there is provided a second groove formed extending along the opposite side faces at a center of the rear face, and the cover is joined to the main body by friction stir welding.
  • the cross-sectional shape of the first groove processed into the top face (surface) of the main body has the simplest cross-sectional shape (a rectangle)
  • the machine time required to process the first groove can be shortened, and production costs can be reduced.
  • the second groove which forms the flow channel is formed at the center of the bottom face (rear) of the cover, the load applied to the cover when the main body and cover are welded together can be transmitted to the bottom of the first groove, that is the main body, via the edges of the cover whose height is substantially equal to the depth of the first groove, and consequently intrusion of the penetration bead of the weld into the flow channel can be prevented, and deformation of the cover resulting from the welding process can be prevented.
  • the edges of the cover are formed so as to have a height substantially equal to the depth of the first groove, the rigidity of the cover in its entirety can be improved, the width of the second groove can be increased, and the width of the flow channel can be increased, thereby enabling an increase in the cross-sectional area of the flow channel.
  • the heat exchanger plate according to the present invention comprises: a flat main body on a surface of which is formed at least one first groove having a rectangular cross-sectional shape; and a flat cover which covers an entire surface of the main body, and on a rear face of which is formed a protrusion whose top face contacts a bottom of the first groove and whose opposite side faces contact opposite side faces of the first groove, when the cover is superposed on the surface of the main body, wherein there is provided a second groove formed extending along the opposite side faces at a center of the top face, and the cover is joined to the main body by friction stir welding.
  • the cross-sectional shape of the first groove processed into the top face (surface) of the main body has the simplest cross-sectional shape (a rectangle)
  • the machine time required to process the first groove can be shortened, and production costs can be reduced.
  • the second groove which forms the flow channel is formed at the center of the top face of the protrusion, the load applied to the cover when the main body and cover are welded together can be transmitted to the bottom of the first groove, that is the main body, via the edges of the protrusion whose height is substantially equal to the depth of the first groove, and consequently intrusion of the penetration bead of the weld into the flow channel can be prevented, and deformation of the cover resulting from the welding process can be prevented.
  • the edges of the protrusion are formed so as to have a height substantially equal to the depth of the first groove, the rigidity of the cover in its entirety can be improved, the width of the second groove can be increased, and the width of the flow channel can be increased, thereby enabling an increase in the cross-sectional area of the flow channel.
  • the machine time required for processing can be shortened, production costs can be reduced, intrusion of the penetration bead of the weld into the flow channel can be prevented, and deformation of the cover by the welding process can be prevented.
  • FIG. 1 is a schematic plan view of a heat exchanger plate according to a first embodiment of the present invention.
  • FIG. 2 is a partial cross-sectional view of FIG. 1 .
  • FIG. 3 is a similar figure to FIG. 2 showing a partial cross-sectional view of a heat exchanger plate according to a second embodiment of the present invention.
  • FIG. 1 is a schematic plan view of a heat exchanger plate according to the present embodiment
  • FIG. 2 is a partial cross-sectional view of FIG. 1 .
  • the heat exchanger plate 1 As shown in FIG. 1 , the heat exchanger plate (referred to hereafter as “backing plate”) 1 according to the present embodiment comprises a main body 2 and a cover 3 .
  • the main body 2 for example, is a flat member produced from oxygen-free copper or a copper alloy containing 5% or less Zr or Cr, having a rectangular shape in plan view which is approximately 2350 mm long, 2010 mm wide, and 15 mm deep. Furthermore, a (first) groove 4 having a U-shape in plan view and a rectangular shape in cross-section and/or a groove 4 having a wave shape in plan view and a rectangular shape in cross-section is provided on a top face (surface) 2 a of this main body 2 .
  • the cover 3 is a plate member formed so as to have the same shape in plan view as the groove 4 , such that when the cover 3 is embedded in the groove 4 , a lower face (rear surface) 3 a of the cover contacts a bottom 4 a of the groove 4 , and side faces 3 b thereof contact side faces 4 b of the groove 4 , such that a top face (surface) 3 c thereof is coplanar with the top face 2 a of the main body (thereby forming a flush surface). Furthermore, at the center of the lower face 3 a of the cover 3 is provided a (second) groove 5 which is rectangular in cross-section and is formed so as to extend along the side faces 3 b . In addition, a void formed when the cover 3 is engaged in the groove 4 (more specifically the void enclosed by the groove 5 and the bottom 4 a of the groove 4 ) serves as a flow channel 6 through which a cooling medium or heating medium passes.
  • Friction stir welding is a welding method that involves inserting a rotating tool 9 comprising a shoulder section 7 and a pin section 8 as shown in FIG. 2 , into the joint (boundary: joint line) between the main body 2 and the cover 3 , and rotating the rotating tool 9 as it moves along the joint.
  • a plurality (2 in the present embodiment) of independent flow channels 6 are formed in the backing plate 1 (the flow channel 6 formed between the bottom 4 a of the groove 4 having a U shape in plan view and the groove 5 formed on the lower face 3 a of the cover 3 having a U shape in plan view, and the flow channel 6 formed between the bottom 4 a of the groove 4 having a wave shape in plan view and the groove 5 formed on the lower face 3 a of the cover 3 having a wave shape in plan view). Furthermore, after the welding process, an inlet for the cooling or heating medium is provided at one end of each flow channel 6 , and an outlet for the cooling or heating medium is provided at the other end.
  • the groove 4 processed into the top face 2 a of the main body 2 has the simplest cross-sectional shape (a rectangle), the machine time required to process the groove 4 can be shortened, and production costs can be reduced.
  • the groove 5 which forms the flow channel 6 is formed at the center of the bottom face 3 a of the cover 3 , the load applied to the cover 3 when the main body 2 and cover 3 are welded together can be transmitted to the bottom 4 a of the groove 4 , that is the main body 2 , via the edges of the cover 3 whose height is substantially equal to the depth of the groove 4 , and consequently intrusion of the penetration bead of the weld into the flow channel 6 can be prevented, and deformation of the cover 3 resulting from the welding process can be prevented.
  • the edges of the cover 3 are formed so as to have a height substantially equal to the depth of the groove 4 , the rigidity of the cover 3 in its entirety can be improved, the width of the groove 5 can be increased, and the width of the flow channel 6 can be increased, enabling an increase in the cross-sectional area of the flow channel 6 .
  • FIG. 3 is a similar figure to FIG. 2 showing a partial cross-sectional view of a backing plate according to the present embodiment.
  • the backing plate according to the present embodiment differs from that of the first embodiment described above in that a cover 13 is provided instead of the cover 3 .
  • Other components are the same as those in embodiment 1, and hence description of these components is omitted here.
  • the cover 13 which covers the entire top face 2 a of the main body 2 , is a flat member having a rectangular shape in plan view with dimensions of 2350 mm long and 2010 mm wide. Furthermore, on the bottom face (rear) 13 a of the cover 13 is formed a protrusion 14 whose top face 14 a contacts the bottom 4 a of the groove 4 and whose side faces 14 b contact the side faces 4 b of the groove 4 when the cover 13 is superposed on the top face 2 a of the main body 2 . In addition, a (second) groove 5 which is rectangular in cross-section and is formed along both side faces 14 b , is provided in the center of the top face 14 a of the protrusion 14 . Furthermore, the void formed when the protrusion 14 is engaged in the groove 4 (more specifically the void enclosed by the groove 5 and the bottom 4 a of the groove 4 ) serves as the flow channel 6 through which a cooling medium or heating medium passes.
  • Friction stir welding is a welding method that involves inserting a rotating tool 9 comprising a shoulder section 7 and a pin section 8 as shown in FIG. 3 , into the joint (boundary: joint line) between the main body 2 and the cover 3 which extends along the thickness direction of the plate, and rotating the rotating tool 9 as it moves along the joint.
  • a plurality (2 in the present embodiment) of independent flow channels 6 are formed in the backing plate (the flow channel 6 formed between the bottom 4 a of the groove 4 having a U shape in plan view and the groove 5 formed on the top face 14 a of the protrusion 14 having a U shape in plan view, and the flow channel 6 formed between the bottom 4 a of the groove 4 having a wave shape in plan view and the groove 5 formed on the top face 14 a of the protrusion 14 having a wave shape in plan view). Furthermore, after the welding process, an inlet for the cooling or heating medium is provided at one end of each flow channel 6 , and an outlet for the cooling or heating medium is provided at the other end.
  • the cross-sectional shape of the groove 4 processed into the top face 2 a of the main body 2 has the simplest cross-sectional shape (a rectangle), the machine time required to process the groove 4 can be shortened, and production costs can be reduced.
  • the groove 5 which forms the flow channel 6 is formed at the center of the top face 14 a of the protrusion 14 , the load applied to the cover 13 when the main body 2 and cover 13 are joined can be transmitted to the bottom 4 a of the groove 4 , that is the main body 2 , via the edges of the protrusion 14 whose height is substantially equal to the depth of the groove 4 , and consequently intrusion of the penetration bead of the weld into the flow channel 6 can be prevented, and deformation of the cover 13 resulting from the welding process can be prevented.
  • the edges of the protrusion 14 are formed so as to have a height substantially equal to the depth of the groove 4 , the rigidity of the cover 13 in its entirety can be improved, the width of the groove 5 can be increased, and the width of the flow channel 6 can be increased, thereby enabling an increase in the cross-sectional area of the flow channel 6 .
  • the present embodiment can be used with a reduced plate thickness by grinding or polishing the top face (surface) of the cover 13 after the main body 2 and the cover 13 are welded together until the state shown in FIG. 2 is obtained, that is, until the entire surface 2 a of the main body 2 is exposed.
  • heat exchanger plate according to the present invention can be applied not only to the backing plate described in the embodiments above, but also to any object with the same form or function used in an array formation process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
US11/902,329 2007-04-06 2007-09-20 Heat exchanger plate Abandoned US20080245516A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-100698 2007-04-06
JP2007100698A JP2008254046A (ja) 2007-04-06 2007-04-06 熱交換板

Publications (1)

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US20080245516A1 true US20080245516A1 (en) 2008-10-09

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US11/902,329 Abandoned US20080245516A1 (en) 2007-04-06 2007-09-20 Heat exchanger plate

Country Status (5)

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US (1) US20080245516A1 (enrdf_load_stackoverflow)
JP (1) JP2008254046A (enrdf_load_stackoverflow)
KR (1) KR100967254B1 (enrdf_load_stackoverflow)
CN (1) CN100573020C (enrdf_load_stackoverflow)
TW (1) TW200840672A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080245517A1 (en) * 2007-04-06 2008-10-09 Soichiro Ishikawa Heat exchanger plate and manufacturing method therefor
US20110132968A1 (en) * 2009-12-03 2011-06-09 HONG FU JIN PRECISION INDUSTRU (ShenZhen) CO., LTD. Friction stir welding method
US20180043483A1 (en) * 2012-10-10 2018-02-15 Nippon Light Metal Company, Ltd. Method for manufacturing heat exchanger plate and method for friction stir welding
US10335894B2 (en) 2014-01-27 2019-07-02 Nippon Light Metal Company, Ltd. Joining method
US11020817B2 (en) * 2016-11-01 2021-06-01 The Welding Institute Method and apparatus for creating channels in workpieces
US11052480B2 (en) * 2016-06-23 2021-07-06 Aalto University Foundation Sr Non-consumable tool and a process for solid-state production of a channel and a weld joint, and a structure of at least two components based on originally bulk components of similar, or dissimilar, materials

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5347774B2 (ja) * 2009-07-02 2013-11-20 日本軽金属株式会社 伝熱板の製造方法及び伝熱板
JP5567530B2 (ja) * 2011-08-19 2014-08-06 日立オートモティブシステムズ株式会社 摩擦攪拌接合構造およびパワー半導体装置
JP5459386B2 (ja) * 2012-12-28 2014-04-02 日本軽金属株式会社 伝熱板の製造方法
WO2015060007A1 (ja) * 2013-10-21 2015-04-30 日本軽金属株式会社 伝熱板の製造方法及び接合方法
CN105004174B (zh) * 2015-07-30 2017-05-31 常州南夏墅建设有限公司 平板式加热器
CN113000767A (zh) * 2021-03-01 2021-06-22 中冶重工（唐山）有限公司 一种低l型耐磨衬板成型用锻压座及衬板成型方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020108740A1 (en) * 2001-02-02 2002-08-15 Haretaro Hidaka Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same
US20080245517A1 (en) * 2007-04-06 2008-10-09 Soichiro Ishikawa Heat exchanger plate and manufacturing method therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3577192B2 (ja) * 1997-03-27 2004-10-13 三菱電機株式会社 半導体素子用冷却装置
JP3895498B2 (ja) * 1999-04-28 2007-03-22 古河スカイ株式会社 金属部材を接合したヒートプレート及びその製造方法
JP4385533B2 (ja) * 2001-03-02 2009-12-16 日本軽金属株式会社 ヒートプレートの製造方法
JP4325260B2 (ja) * 2003-04-15 2009-09-02 日本軽金属株式会社 伝熱素子の製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020108740A1 (en) * 2001-02-02 2002-08-15 Haretaro Hidaka Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same
US20080245517A1 (en) * 2007-04-06 2008-10-09 Soichiro Ishikawa Heat exchanger plate and manufacturing method therefor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080245517A1 (en) * 2007-04-06 2008-10-09 Soichiro Ishikawa Heat exchanger plate and manufacturing method therefor
US20110132968A1 (en) * 2009-12-03 2011-06-09 HONG FU JIN PRECISION INDUSTRU (ShenZhen) CO., LTD. Friction stir welding method
US8052033B2 (en) * 2009-12-03 2011-11-08 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd Friction stir welding method
US20180043483A1 (en) * 2012-10-10 2018-02-15 Nippon Light Metal Company, Ltd. Method for manufacturing heat exchanger plate and method for friction stir welding
US10518369B2 (en) * 2012-10-10 2019-12-31 Nippon Light Metal Company, Ltd. Method for manufacturing heat exchanger plate and method for friction stir welding
US10335894B2 (en) 2014-01-27 2019-07-02 Nippon Light Metal Company, Ltd. Joining method
US11052480B2 (en) * 2016-06-23 2021-07-06 Aalto University Foundation Sr Non-consumable tool and a process for solid-state production of a channel and a weld joint, and a structure of at least two components based on originally bulk components of similar, or dissimilar, materials
US11020817B2 (en) * 2016-11-01 2021-06-01 The Welding Institute Method and apparatus for creating channels in workpieces

Also Published As

Publication number Publication date
KR20080090952A (ko) 2008-10-09
CN101281006A (zh) 2008-10-08
KR100967254B1 (ko) 2010-07-01
CN100573020C (zh) 2009-12-23
JP2008254046A (ja) 2008-10-23
TWI325351B (enrdf_load_stackoverflow) 2010-06-01
TW200840672A (en) 2008-10-16

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AS Assignment

Owner name: MITSUBISHI HEAVY INDUSTRIES, LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ISHIKAWA, SOICHIRO;HIDAKA, HARETARO;MATSUSHIMA, SEIJI;REEL/FRAME:019913/0566

Effective date: 20070828

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION