WO2003052337A1 - Tube et son procede de fabrication, tube pour echangeur de chaleur et son procede de fabrication, echangeur de chaleur et son procede de fabrication - Google Patents

Tube et son procede de fabrication, tube pour echangeur de chaleur et son procede de fabrication, echangeur de chaleur et son procede de fabrication Download PDF

Info

Publication number
WO2003052337A1
WO2003052337A1 PCT/JP2002/011176 JP0211176W WO03052337A1 WO 2003052337 A1 WO2003052337 A1 WO 2003052337A1 JP 0211176 W JP0211176 W JP 0211176W WO 03052337 A1 WO03052337 A1 WO 03052337A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
edge
heat exchanger
portions
bent
Prior art date
Application number
PCT/JP2002/011176
Other languages
English (en)
Japanese (ja)
Inventor
Motonari Kinoshita
Masayuki Nagami
Satoru Hirasawa
Masayuki Mimoda
Original Assignee
Daiwa Radiator Kogyo Co, Ltd
Oka 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 Daiwa Radiator Kogyo Co, Ltd, Oka Industries, Ltd filed Critical Daiwa Radiator Kogyo Co, Ltd
Priority to AU2002336319A priority Critical patent/AU2002336319A1/en
Priority to JP2003553185A priority patent/JPWO2003052337A1/ja
Publication of WO2003052337A1 publication Critical patent/WO2003052337A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
    • B21C37/104—Making tubes with riveted seams or with non-welded and non-soldered seams the tubes having a special shape, e.g. polygonal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular

Definitions

  • Tubes methods for manufacturing tubes, tubes for heat exchangers, methods for manufacturing tubes for heat exchangers, heat exchangers, methods for manufacturing heat exchangers
  • the present invention relates to a method for manufacturing tubes, tubes for heat exchangers, tubes for heat exchangers, a condenser, an oil cooler, a method for manufacturing heat exchanger tubes, a method for manufacturing tubes for heat exchangers, and a method for manufacturing heat exchangers. It belongs to the technical field. Background art
  • heat exchangers of this type such as Laje, and condensers
  • heat exchange tubes for flowing fluid such as a heat exchange medium in the heat exchange section.
  • the thing of a section elliptical shape is known as a thing.
  • the flat plate 21 is bent into a columnar shape, and the opposite end faces 21 a and 21 b are joined by welding so that they face each other.
  • We formed by crushing it flat into one end of an oval, that is, one end in the width direction of the tube.
  • burrs 22 during welding are inevitably formed on the outer peripheral surface of the welded part, and this removal process takes time and effort. If the workpiece is not moved at a considerable speed (for example, 120 mZ) while adding welding, the welding will not be stable and there will be a problem that sophisticated equipment and technology will be required.
  • the tube whose end face is integrated by the conventional welding is not only complicated and complicated to form, but also the tube material is welded. If there is a burr on the edge, the welding is not stable, so a tube material without paris is required, and the tube material is deteriorated by the heat generated by welding.
  • the conventional tube formed by bending at least one end in a zigzag shape has only a problem that the substantial flow path cross-sectional area of the fluid is reduced due to the presence of the zigzag portion. In other words, there is a problem that the thickness of the tube becomes an integral multiple of the plate thickness and the degree of freedom in dimension is impaired.
  • a flat material is bent to form a state in which opposing edges are overlapped, and then a flux agent, which is a pre-treatment for fixing with a single piece of material, is permeated. It has a configuration. Then, in order to efficiently infiltrate the flux agent, the edge portions overlapped with each other and the front end portion of the edge portion are subjected to bending processing, and a gap for flux agent infiltration is formed between them. To be formed.
  • the flux agent penetrates through these gaps and penetrates into the overlapped portions, it is difficult to penetrate the flux agent over the entire overlapped portion, which causes not only unevenness but also bending accuracy. If it is damaged, it will be in a close contact state, and it is considered that the flux agent hardly penetrates.
  • a rectangular metal plate is bent into a curved shape, and a pair of opposed ends is formed.
  • the flux agent can be evenly and uniformly applied, and the connection portion can be securely fixed by the brazing material, and a reliable tube can be provided.
  • the connecting portion of the present invention may be formed by overlapping the edge portions of the plate material in the radial direction and making surface contact with each other.
  • a step portion is formed at an inner diameter side edge portion constituting the connection portion of the present invention so that the outer diameter side edge portion does not protrude from the tube outer peripheral surface. be able to.
  • the connecting portion of the present invention may have an air vent for venting air at the surface contact portion, thereby extracting air generated at the time of fixing the brazing material, Further, the connecting portion can be fixed more reliably. Further, in this connection portion, the connecting portion of the present invention may be formed by bringing the cut surfaces of the edge portions of the plate material into face-to-face contact. it can.
  • the plate material of the present invention may be formed with concave and convex portions to be fitted to each other at both end edges.
  • both edge portions of the plate material of the present invention can be formed on an inclined cut surface.
  • the present invention provides a method of bending a rectangular metal plate into a curved shape, and forming a pair of opposed metal plates.
  • a flux agent is applied to the edges of the rims, and thereafter, the connecting portions in which these edges are brought into face-to-face contact are fixed via a single piece of material.
  • the tube is a tube through which a fluid for a heat exchanger flows, and the tube includes a pair of plate-like bodies facing each other, and at least one end edge in the width direction of the tube has a pair of opposed tubes. Connecting portions for connecting the edge portions of the plate-like body are provided, and the connecting portions are bent at both end portions toward the opposing edge portions, and are connected to the both end portions. A flux agent is applied, and the inner surface of one edge and the outer surface of the other edge are configured to overlap each other in a surface contact state in the width direction.
  • the tube is fixed at the mouth of the surface contact portion, the tube is not affected by the presence or absence of the tube material, and the fixing row forms a burr on the outer surface of the tube. Molding can be performed easily and stably without falling out, and the connection part has a double-layer structure, so effective strength can be measured and the tube thickness can be set arbitrarily, but the cross-sectional area of the flow path is substantial Reduction can be reduced.
  • the surface contacting portion of the present invention can be characterized in that it has an arc shape.
  • the bent front edge at one edge of the present invention is in surface contact with a step surface formed at the bent end of the other edge, and the thickness width of the tube plate surface is increased. It can be characterized as being set so that it does not protrude, and it can mold an oval tube without unnaturalness o
  • the step width of the step surface portion of the present invention can be characterized in that it is equivalent to the plate thickness.
  • the bent leading edge of the part can be naturally shaped to follow the other plate-like part.
  • a connecting portion for connecting the edge portions of a pair of plate-like bodies facing each other to at least one edge portion in a width direction of a tube through which a fluid for a heat exchanger flows A flux is applied to both edges, and the inner surface of one edge and the outer surface of the other edge are folded toward the opposite edge so that they overlap with each other in a widthwise surface contact state.
  • a method for producing a tube for a heat exchanger comprising bending the bent portions, overlapping the bent portions in the width direction, and then fixing the surface-contacting portion via a brazing material.
  • the bending of one edge portion of the present invention is formed as a temporary shape that can get over the bending portion of the other edge portion.
  • the tube can be further bent so as to make surface contact with the curved part.
  • the tube is superimposed in the width direction in surface contact, but the processing is performed. This makes it easy to avoid deformation due to forced fitting.
  • the present invention provides a heat exchange system comprising a tube through which a fluid for a heat exchanger flows, a tank into which upper and lower ends of the tube are inserted, and fins interposed between adjacent tubes.
  • a heat exchange system comprising a tube through which a fluid for a heat exchanger flows, a tank into which upper and lower ends of the tube are inserted, and fins interposed between adjacent tubes.
  • at least one edge portion in the width direction of the tube includes a connecting portion for connecting the edge portions of a pair of plate-shaped bodies facing each other.
  • the connection portion is formed by bending both end edges toward the opposing edge portions, applying a flux agent, and forming an inner surface of one edge portion and an outer surface of the other edge portion in the width direction.
  • a heat exchanger characterized in that they are overlapped with each other in a contact state, and the portions that are in surface contact are fixed via a brazing material.
  • the tube of the present invention can be characterized in that the overlapped connection portion is arranged on the air inflow side, and in this way, the portion of the tube where dust or the like hits the tube. Can be made into a double structure and the strength can be increased.
  • the present invention also provides a tube through which a fluid for a heat exchanger flows, a tank component into which upper and lower ends of the tube are inserted, and an intervening member between adjacent tubes.
  • a flux agent is applied to the edges in the width direction of the plate-like body, and an unfixed tube is formed by bringing the flux agent into contact therewith.
  • a heat treatment is performed so that each member is fixed to the mouth and the contact portion of the non-fixed tube is fixed.
  • the heat treatment process for fixing the tube is the same as the heat treatment process for fixing the tube to the fin-tank component, and the process can be simplified.
  • the tube in the non-adhered state has a connecting portion formed at least at one edge portion in the width direction for connecting the edge portions of a pair of plate-like bodies facing each other.
  • the connecting portion is bent toward the facing edge so that the inner surface of one edge coated with the flux agent and the outer surface of the other edge overlap each other in the width direction in surface contact. Thereafter, the bent portions are formed by overlapping the bent portions in the width direction.
  • Fig. 1 is a perspective view of Laje.
  • FIG. 2 is a partially cutaway perspective view of Laje.
  • Fig. 3 (A) is a sectional view of the tube, and (B) is an enlarged sectional view of the tube material.
  • FIG. 4 is a process chart showing a tube processing step.
  • FIG. 5 is an enlarged sectional view of a tube connecting portion.
  • FIG. 6 is an exploded perspective view of the main part of Laje.
  • FIG. 7 is a process chart showing a conventional tube processing step.
  • FIGS. 8 (A), (B), and (C) are an enlarged sectional view of a tube connecting portion, a partially developed view of a material, and a side view of a material in the second embodiment.
  • 9 (A) and 9 (B) are perspective views of a tube according to the third embodiment and a development view of the material, respectively.
  • FIGS. 10 (A) and (B) are a perspective view and a development view of the material of the tube according to the fourth embodiment, respectively.
  • FIG. 11 is a pattern diagram for explaining the manufacturing process of the fourth embodiment.
  • FIGS. 12 (A) and 12 (B) are a perspective view and a development view of the material of the tube according to the fifth embodiment, respectively.
  • FIGS. 13 (A) and (B) are a perspective view and a development view of the material of the tube according to the sixth embodiment, respectively.
  • reference numeral 1 denotes a vehicle Raje night
  • the Raje night 1 is a Raje night core constituted by using a tube 2 and a corrugated fin 3 in which the present invention is implemented.
  • the header tank 5 is built into the upper end of 4 and the feeder tank 6 is built into the lower end.
  • the header tank 5 is also equipped with the necessary parts such as the open / close removable Rajer cap 7 and the inlet pipe 8.
  • the necessary components such as the outlet pipe 9 and the drain cock 10 are installed in the hood tank 6, and the installation configuration of these necessary components is the same as before.
  • the tube 2 that constitutes the Laje night core 4 is a cylindrical body having an elliptical cross section and is formed as follows. That is, as shown in Fig. 4, a long flat plate (work) having a predetermined width is bent by roll forming (roll forming).
  • roll forming roll forming
  • the outer surface (surface) of the core plate 12 is made of a material having a melting point lower than that of aluminum. It is formed by adopting a three-layer structure in which the inner surface (rear surface) is coated with a hard sacrificial material 14 that is strong against fluids. As shown in A), the material 11 is bent in a V-shape around the center in the width direction, with the outside being the mouth material 13 covering surface and the inside being the sacrificial material 14 covering surface, A pair of plate-like portions 11a and 11b facing each other are formed, and in the process, a connecting portion 1 for connecting the edge portions of both plate-like portions 11a and 11b is formed. 1 c is formed.
  • the leading edge of one plate-shaped portion 11a is folded back and bent toward the other plate-shaped portion 11b to form the temporary curved portion 1Id.
  • a position slightly closer to the plate-shaped portion than the position corresponding to the tip 11e of the temporary curved portion 11d is set to the material 11.
  • the stepped surface portion 11 f is formed by bending into a stepped shape (right angle) toward the one plate-shaped portion 1 la side by an amount corresponding to the plate thickness. It is folded back into a curved shape with a diameter slightly smaller than the inner peripheral shape of d to form the other curved portion 11 g (see FIG. 4 (A)).
  • the plate-shaped portions 11a and 11b bent in a substantially V shape are further bent flat, but the temporary bending portion 1 1d and the other bending portion 1 1b are bent.
  • g has the relationship shown in Fig. 4 (B), (C), and (D). That is, when the plate-like portions 11a and 11b are bent to a nearly parallel shape, the tip 11e of the temporary bending portion 11d becomes the top end 11 of the other bending portion 11g. It is set so as to coincide with the h position or to be located on the outside away from the position. Then, as shown in FIG. 4 (D), when the plate-like portions 11a and 11b are bent to a parallel state, the tip 11e of the temporary bending portion 11d becomes the other end.
  • the dimension is set such that the top end of the curved part 1 1 g comes in contact with the top end 1 1 h but does not forcibly fit or does not come in contact with it and is separated from it.
  • 1 d is bent to have a small diameter to form one curved portion (outer curved portion) 11 i
  • the tip of the one curved portion 11 i (the same as the tip of the temporary curved portion 11 d) )
  • 11 e abuts against the stepped surface portion 11 f in abutting manner
  • the inner peripheral surface of one curved portion 11 i is connected to the other curved portion (inner curved portion).
  • the application of the fluxing agent for melting the brazing material 13 is performed after the other curved portion 11 g is completely roll-formed and the roll contact with the outer peripheral surface of the curved portion 11 g is eliminated. It is set to be performed during the stage before the curved portion 11 d passes over the other curved portion 11 g, and in the present embodiment, it is set to be performed in the process of FIG. 4 (B). ing.
  • the unfixed tube 2 is, of course, cut to a required length after the bending process is completed.
  • the unfixed tube 2 that has been bent is manufactured as a finished product as described above
  • the unfixed tube 2 is placed in a furnace (a vacuum furnace or a furnace in a deoxygenated atmosphere such as a nitrogen replacement furnace). ),
  • the mouth material 13 attached to the surface of the other curved portion 11g is melted and the two curved portions 11g and 11i overlap with each other.
  • the fixed portion 13a is made, whereby a finished product tube 2 having a connecting portion 11c formed at one end in the width direction of the tube 2 can be manufactured, and the completed tube 2 is used.
  • Laje Overnight heat exchangers can be manufactured.
  • the Rajje evening 1 using the unfixed tube 2, which will be described.
  • insert the necessary components such as interposing the fines 3 so as to be in contact with the adjacent unfixed tubes 2, so that each part is unfixed and the unfixed tubes 2 are inserted.
  • the material 13 to be coated on the outer surface of the tube 2 is melted.
  • 3 secures the tube curved portions 1 1 g and 1 1 i to each other, secures the end of the tube 2 to the tank plates 5 a and 6 a, and secures the tube 2 to the fins 3.
  • the tube 2 is incorporated so that the connection portion 11c is on the air inflow side.
  • the ink tanks 5, 6 are formed by fastening tank bodies 5c, 6c to tank plates 5a, 6a.
  • reference numeral 15 denotes a sealing gasket interposed between the tank plates 5a and 6a and the tank bodies 5c and 6c.
  • the tube 2 is formed by bending a single plate-shaped material 11, in which case it is formed at one end in the width direction of the tube 2.
  • the connecting portion 11c is formed by bending both edge portions of the material 11 toward the opposite edge portions to form curved portions 11g and 11i, and these curved portions llg and 11g. 1 1 i overlaps each other in the width direction in surface contact, and since the overlapping portion in contact with this surface is fixed via the mouthpiece 13, it is necessary to manufacture the tube 2.
  • the material 11 can be manufactured without being affected by the presence or absence of the paris at the edge portion.
  • the tube 2 is fixed at the surface contact area with the brazing material 13, there is no burr on the outside unlike the welding of the butted ends, so the burr processing work can be eliminated.
  • the connecting portion 11c has a structure in which the material 11 is formed as a double layer, the strength can be effectively increased.
  • the tube thickness can be set arbitrarily, but the substantial reduction in the flow path cross-sectional area can be reduced.
  • the fluxing agent for ensuring the fixation by the brazing material 13 is a step before the two curved portions 11 g and 11 i are overlapped, that is,
  • the work of applying the flux agent is simple and easy, and the flux agent can be uniformly and evenly applied to the entire curved portions 11 g and 11 i.
  • the flux agent penetrates into the state in which the fixed part of the mouth material is pre-installed in a close contact state, the mouth material becomes uneven or the flux agent Is prevented from being infiltrated, and the fixing by the mouth material 13 is ensured.
  • High quality tube 2 can be provided.
  • the tube 2 having the connecting portion 11 c having an arcuate cross section (curved shape)
  • the tube 2 has a forcibly fitted structure and is prevented from coming off.
  • the connecting portion 11 c is opened. Even if the unfixed tube 2 before being fixed by the material 1 3 remains, the connection portion 1 1 c does not open, and the unfixed tube 2 is used for the next assembly work. There is no problem.
  • the leading edge 1 1e of one of the curved portions 1 1i on the outside at the connecting portion 1 1c is set so as not to protrude from the thickness width of the plate-shaped portion of the tube 2.
  • the bending start end of the other curved portion 11g is provided with a stepped surface portion that is concave by an amount corresponding to the plate thickness so that the bent leading edge 11e of the one curved portion 11i does not protrude.
  • 11 f is formed, and one of the curved portions 11 i is bent while the leading edge 11 e abuts on the step surface 11 f.
  • the tube 2 is fixed by the mouth material 1 3 and the outer peripheral surface is in a continuous state without any gaps or steps, so that the tube 2 has no unnaturalness. As a result, when such a tube 2 having no gap is inserted into the tank plates 5a and 6a, the sealing performance is improved, which contributes to an improvement in productivity.
  • the connecting portion 11c described above has a structure in which the curved portions 11g and 11i are overlapped in a surface-contact state.
  • one curved portion 11 i is formed in advance as a large temporary curved portion 11 d so that the leading edge 11 e can easily pass over the top end 11 h of the other curved portion 11 g.
  • the temporary curved portion 11d is further folded by post-processing so as to make surface contact with the other curved portion 11g. Since the tube 2 is formed in a curved shape, the tube 2 becomes a connection portion 11c that is forcibly fitted when the processing is completed, but the processing is facilitated and deformation due to forcibly fitting can be avoided. Become.
  • the connecting portion 1 1c of the tube 2 is bent at both ends toward the opposing edges, and The inner surface of the curved portion 11 i and the outer surface of the other curved portion 11 g overlap each other in the width direction in a state of surface contact, and the surface contact portion is fixed via the brazing material 13.
  • the tube 2 is arranged such that the connecting portion 11 c of the double structure, in which the curved portions 11 g and 11 i overlap each other, is on the air inflow side, The portion of the tube 2 that is exposed to dust and the like can be made into a double structure, and the strength can be increased.
  • the present invention is, of course, not limited to the above-described embodiment, and can be practiced even if the connecting portion of the tube is on both sides in the width direction.
  • the portion may have any shape as required, such as a mountain shape, a trapezoidal shape, or the like, instead of a curved shape.
  • the inner surface of the one plate-shaped portion 11a that is, the portion corresponding to the temporary curved portion 11d (the surface on the side that comes into surface contact with the curved portion 11g, the sacrificial material 1 On the surface covered with 4), a plurality of recesses 1 1 j are formed in a direction parallel to the tube length direction in a direction perpendicular to the tube length direction (see FIGS. 8 (B) and 8 (C)).
  • the plate-shaped portion 11a was bent into a temporary curved portion 11d, and as described above, the plate-shaped portion 11a was bent along the inside curved portion 11g to form a curved portion 11i.
  • the air vent hole H formed by the concave portion 11 j is set to be opened in a state orthogonal to the tube length direction. In this way, when air is generated when the mouth material 13 and the flux agent are melted, the air escapes from the edge of the curved portion 11 i through the air vent hole H. Have been.
  • the tube of the third embodiment is formed in a perfect circular shape, and the tube 23 is formed using a rectangular material 24 similar to the three-layer structure material 11. Have been. Then, of the pair of opposite edge portions 24a and 24b of the material 24, a step portion 24c is formed at one edge portion 24a, and the material 24 is bent in a curved shape. After processing, a flux agent is applied to both end edges 24a and 24b, and thereafter, the material 24 is further bent, and then the step surface 24d of the step portion 24c is formed on the other side.
  • the edges 24a and 24b are overlapped so that the cut surface 24e of the edge 24b of the edge 24b abuts against the outer surface of the edge 24a and the edge 24b of the edge 24b.
  • connection portion With both ends 24 a and 24 b is formed. Then, heat treatment is performed on the thus superimposed state, so that the tube 23 in a state where the connection portion is fixed is completed.
  • the both end edges 24a and 24b are formed by the mouth covered with the overlapping surface of the both end edges 24a and 24b.
  • Material 13 is fixed by melting.
  • the completed tube 23 is not limited to a heat exchanger and can be used for other purposes. Further, after fixing the connecting portion in this way, it is also possible to cut the tube to an appropriate length or to deform the shape of the tube 23.
  • FIGS. 10 and 11 a fourth embodiment shown in FIGS. 10 and 11 will be described.
  • a rectangular material 26 having the same three-layer structure as described above is used, and the opposite end portions 26 a and 26 b of the material 26 are provided with:
  • a plurality of protrusions 26c to be fitted with each other and a recess 26d positioned therebetween are formed respectively.
  • the connecting portion is formed by fitting the protrusion 26 c of one edge 26 a or 26 b into the recess 26 d of the other edge 26 b or 26 a.
  • the protrusion 26 c and the recess 26 d of each other are fitted in a state where the cut surfaces are in surface contact.
  • a raw material 26 is punched out in a state of forming a projection 26 c and a recess 26 d to form a rectangular body (press working).
  • the body is bent, but in the process of bending, before the ends 26a, 26b are fitted to each other, a flux agent is applied to both ends 26a, 26b. It is set so that it is applied and then further bent to fit each other, followed by heat treatment.
  • the edge portions 26a and 26b have a configuration in which the cut surface (end surface) of the material 26 is in surface contact, and in this case, the outer peripheral surface side eluted by the heat treatment is used.
  • the connection part is fixed by the brazing material 13 flowing into the cut surface side on the inner diameter side, and consideration is given to increasing the surface contact area between the cut surfaces to ensure more secure fixing. ing.
  • FIG. 12 shows a fifth embodiment.
  • both ends 28 a, 2 b of the material 28 constituting the tube 27 are different from those of the fourth embodiment.
  • a projection 28c and a recess 28d are formed on 8b, but the shape of the recess 28d is in the form of a groove, and the projection 28d fits into the above-mentioned dovetail shape. It is formed in a wide end shape as much as possible.
  • a flux agent is applied at a stage before the protrusions 28 c and the recesses 28 d are fitted to each other, and then these are fitted.
  • the stopper in the fitted state, the stopper is prevented from coming off in the circumferential direction. Therefore, when the tube 27 is in an unfixed state (temporarily assembled state) in which the protrusion 28 a and the recess 28 b are fitted, the shape is stable, and the subsequent heat treatment work is easy. Not only can you It is configured so that it is possible to shift to the next assembly operation in this state.
  • FIG. 1 is a configuration in which the cutting edges of the three-layered material 30 composing the tube 29 and the cutting edges 30a and 30b of the three-layer structure are in surface contact with each other.
  • Each of 30a and 30b has an inclined cross section cut in an inclined shape in the thickness direction, and these inclined cross sections are in surface contact with each other.
  • a flux is applied to each end 30a, 30b before the ends 30a, 30b are brought into close contact with each other so as to form a perfect circle.
  • the connecting portion is fixed by making a surface contact and then performing a heat treatment.
  • the edge portions 30a and 30b are fixed to each other by melting the mouth material 13 coated on the outer peripheral surface and flowing into the inner diameter side.
  • the tube can be formed into various shapes in addition to the above-described true circular shape and oblong shape.
  • the present invention can be widely applied to tubes and tubes for heat exchangers, methods for manufacturing tubes for heat exchangers, tubes for heat exchangers, methods for manufacturing tubes for heat exchangers, heat exchangers, and methods for manufacturing heat exchangers. This is useful for simple and stable molding, for measuring the effective strength up and for reducing the substantial decrease in the cross-sectional area of the flow channel, and for simplifying the heat treatment process of the heat exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Un tube plat (2), un tube de structure de radiateur (1) peut être fabriqué facilement sans soudage d'une partie de raccord pour la liaison entre elles des parties marginales d'un élément en plaque. Une partie de liaison (11c) du tube (2) est formée dans une structure stratifiée double, de sorte que les deux parties marginales opposées du tube soient courbées l'une vers l'autre, la face interne d'une des parties courbes (11I) et la face extérieure de l'autre partie courbe (11g) se chevauchent avec leur surface en contact dans le sens de la largeur du tube, et la partie en contact superficielle est fixée par une matière de brasage (13).
PCT/JP2002/011176 2001-12-18 2002-10-28 Tube et son procede de fabrication, tube pour echangeur de chaleur et son procede de fabrication, echangeur de chaleur et son procede de fabrication WO2003052337A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002336319A AU2002336319A1 (en) 2001-12-18 2002-10-28 Tube and method for manufacturing tube, tube for heat exchanger and method for manufacturing tube for heat exchanger, and heat exchanger and mehod for manufacturing heat exchanger
JP2003553185A JPWO2003052337A1 (ja) 2001-12-18 2002-10-28 チューブ、チューブの製造方法、熱交換器用チューブ、熱交換器用チューブの製造方法、熱交換器、熱交換器の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001384922 2001-12-18
JP2001-384922 2001-12-18

Publications (1)

Publication Number Publication Date
WO2003052337A1 true WO2003052337A1 (fr) 2003-06-26

Family

ID=19187774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/011176 WO2003052337A1 (fr) 2001-12-18 2002-10-28 Tube et son procede de fabrication, tube pour echangeur de chaleur et son procede de fabrication, echangeur de chaleur et son procede de fabrication

Country Status (4)

Country Link
JP (1) JPWO2003052337A1 (fr)
CN (1) CN1520508A (fr)
AU (1) AU2002336319A1 (fr)
WO (1) WO2003052337A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013231579A (ja) * 2012-04-04 2013-11-14 Denso Corp 熱交換器
US10328593B2 (en) 2013-07-23 2019-06-25 Seki Press Co., Ltd. Internal splitting method of cross-section of end of metal plate or metal rod, manufacturing method of metal container and metal pipe by the internal splitting method and joining method of metal components

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102706199A (zh) * 2012-05-25 2012-10-03 锦州秀亭制管有限公司 刺凸式换热管及其制造工艺
CN107036476B (zh) * 2016-02-04 2020-06-16 丹佛斯微通道换热器（嘉兴）有限公司 换热管、换热器和制造换热器的方法
CN106180255B (zh) * 2016-07-15 2018-09-14 上海爱斯达克汽车空调系统有限公司 一种用于车辆热交换器的扁管的制造方法
CN114768409A (zh) * 2016-08-31 2022-07-22 东洋铝爱科制造株式会社 过滤器构造体、空气净化器用过滤器构造体及空气净化器的通气构造

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5490750U (fr) * 1977-12-12 1979-06-27
JPH05226527A (ja) * 1992-02-14 1993-09-03 Toshiba Corp ヒートシンクおよびそれを用いた半導体モジュール
JPH0968394A (ja) * 1995-08-30 1997-03-11 Calsonic Corp ディンプルチューブの製造方法
WO2000052410A1 (fr) * 1999-02-26 2000-09-08 Zexel Valeo Climate Control Corporation Echangeur de chaleur, procede de fabrication d'echangeur de chaleur, et procede de fabrication de tube pour echangeur de chaleur
US6192977B1 (en) * 1999-09-29 2001-02-27 Valeo Thermique Moteur Tube for heat exchanger
JP2001165587A (ja) * 1999-12-06 2001-06-22 Mitsubishi Heavy Ind Ltd 熱交換器用チューブ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5490750U (fr) * 1977-12-12 1979-06-27
JPH05226527A (ja) * 1992-02-14 1993-09-03 Toshiba Corp ヒートシンクおよびそれを用いた半導体モジュール
JPH0968394A (ja) * 1995-08-30 1997-03-11 Calsonic Corp ディンプルチューブの製造方法
WO2000052410A1 (fr) * 1999-02-26 2000-09-08 Zexel Valeo Climate Control Corporation Echangeur de chaleur, procede de fabrication d'echangeur de chaleur, et procede de fabrication de tube pour echangeur de chaleur
US6192977B1 (en) * 1999-09-29 2001-02-27 Valeo Thermique Moteur Tube for heat exchanger
JP2001165587A (ja) * 1999-12-06 2001-06-22 Mitsubishi Heavy Ind Ltd 熱交換器用チューブ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013231579A (ja) * 2012-04-04 2013-11-14 Denso Corp 熱交換器
US10328593B2 (en) 2013-07-23 2019-06-25 Seki Press Co., Ltd. Internal splitting method of cross-section of end of metal plate or metal rod, manufacturing method of metal container and metal pipe by the internal splitting method and joining method of metal components

Also Published As

Publication number Publication date
JPWO2003052337A1 (ja) 2005-04-28
AU2002336319A1 (en) 2003-06-30
CN1520508A (zh) 2004-08-11

Similar Documents

Publication Publication Date Title
US5765634A (en) Flat heat exchanger tube with a central partition
JP4171760B2 (ja) 偏平管および偏平管の製造方法
JP2000304488A (ja) アルミニウム合金製熱交換器
JPH08226786A (ja) 熱交換器およびその製法
WO1998044306A1 (fr) Tube pour echangeur de chaleur et procede de fabrication de ce dernier
US8925625B2 (en) Heat exchanger
JPH07318289A (ja) 熱交換器
JP4926972B2 (ja) プロファイル圧延した金属製品から製造された管およびその製造方法
WO2003052337A1 (fr) Tube et son procede de fabrication, tube pour echangeur de chaleur et son procede de fabrication, echangeur de chaleur et son procede de fabrication
JPH09250896A (ja) 熱交換器
JPS6166091A (ja) 熱交換器用チユ−ブ材及び該チユ−ブ材による熱交換器コアの製造方法
US6971444B2 (en) Heat exchanger construction and method
JP2001116489A (ja) 犠牲腐食層の形成方法
JP4866571B2 (ja) 熱交換器
JP3316082B2 (ja) 熱交換器のヘッダタンク
JP2020003089A (ja) 熱交換チューブ及び熱交換器
JPH01247991A (ja) 熱交換器およびその製造方法
JPH03295Y2 (fr)
JP3912889B2 (ja) 熱交換器用チューブおよびその製造方法
JP3632871B2 (ja) ヘッダタンクの製造方法
JP4013298B2 (ja) 熱交換器およびその製造方法
JPH03294Y2 (fr)
JP3207321B2 (ja) アルミニウム材製熱交換器
JP2553617Y2 (ja) 熱交換器
JP3767459B2 (ja) 熱交換器

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2003553185

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 028129806

Country of ref document: CN

122 Ep: pct application non-entry in european phase