WO2003033188A1 - Tube et echangeur de chaleur comprenant des tubes - Google Patents

Tube et echangeur de chaleur comprenant des tubes Download PDF

Info

Publication number
WO2003033188A1
WO2003033188A1 PCT/JP2002/010423 JP0210423W WO03033188A1 WO 2003033188 A1 WO2003033188 A1 WO 2003033188A1 JP 0210423 W JP0210423 W JP 0210423W WO 03033188 A1 WO03033188 A1 WO 03033188A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
roll
roll forming
brazing
heat exchanger
Prior art date
Application number
PCT/JP2002/010423
Other languages
English (en)
Japanese (ja)
Inventor
Soichi Kato
Jun Akaike
Original Assignee
Zexel Valeo Climate Control Corporation
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 Zexel Valeo Climate Control Corporation filed Critical Zexel Valeo Climate Control Corporation
Priority to JP2003535967A priority Critical patent/JPWO2003033188A1/ja
Publication of WO2003033188A1 publication Critical patent/WO2003033188A1/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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • 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

Definitions

  • the present invention relates to a tube formed by roll-forming and brazing a metal strip material, and a heat exchanger using the tube.
  • a roll forming apparatus for plastically deforming the material using a roll As a processing apparatus for processing a metal material, a roll forming apparatus for plastically deforming the material using a roll is known. Such a roll forming apparatus is also used for manufacturing a tube. For example, as tubes used in heat exchangers, those formed by roll-forming a metal strip material and brazing it are widely used.
  • the present invention has been made in view of such circumstances, and has as its object to provide a rationally manufactured tube and a heat exchanger using the tube. Disclosure of the invention
  • the invention described in claim 1 of the present application is directed to a tube formed by roll-forming and brazing a metal band-shaped material, wherein the material is recrystallized by annealing.
  • the portion of the tube where the shape of the material becomes flat is not normally bent by roll forming, the degree of processing is small. Therefore, when a material recrystallized by annealing is adopted, the erosion of the brazing material in such a portion becomes remarkable, and this causes a reduction in the corrosion resistance of the tube. In other words, in a region where the material has a low degree of addition, the recrystallization of the base material and the brazing material does not easily proceed even when the brazing temperature is reached, and the structure that leaves sub-grain boundaries (so-called sub-grain) Organization). If this is observed by an optical microscope along the sub-grain boundaries, the brazing filler metal is confirmed to be diffused uniformly throughout the base metal. In this respect, in the present invention, since the material is bent and then formed into a flat shape, such a disadvantage is avoided and a tube having excellent corrosion resistance is obtained.
  • the invention described in claim 2 of the present application is a tube formed by roll-forming and brazing a metal strip-shaped material, wherein the roll-forming apparatus for performing the above-mentioned hole forming comprises a plurality of rolls arranged continuously.
  • the direction in which the material is transported between the plurality of rolls is a tube having a non-linear configuration. According to such a configuration, a rationally manufactured tube can be obtained.
  • the invention described in claim 3 of the present application is a tube formed by roll-forming and brazing a metal band-shaped material, wherein in the portal forming, the width of the material is sized. .
  • the width of the material before sizing is set to be slightly larger than the width after sizing, taking into account the range of error. According to such a configuration, a reasonably manufactured tube can be obtained.
  • the shape of the tube formed by rolling the material may be defective due to a slight error in the width of the material. In particular, such a tendency becomes remarkable when the shape of the tube is complicated and refined.
  • the tube of the present invention since the width of the material is sieved by the mouth forming, such an inconvenience can be avoided, and the dimensional control of the tube can be performed more strictly.
  • a fourth aspect of the present invention in the tube formed by roll-forming and brazing a metal band-shaped material, in the portal forming, after folding the material, an edge of the material is formed.
  • This is a tube in which the material is bent at a base point. According to such a configuration, a rationally manufactured tube can be obtained. That is, in roll forming, it is possible to use the edge of the material as the base of bending, and by using this, it is possible to efficiently create a tube having a complicated shape.
  • An invention according to a fifth aspect of the present invention is a heat exchanger including the tube according to any one of the first to fourth aspects, and configured to exchange heat of a medium with heat transmitted to the tube. That is, the present invention is a tube manufactured rationally, and can be used very suitably as a tube for a heat exchanger.
  • FIG. 2 is a front view showing a heat exchanger according to the embodiment of the present invention.
  • FIG. 2 is an exploded perspective view showing a main part of a heat exchanger according to a specific example of the present invention.
  • FIG. 4 is a front view showing an end face of a tube according to a specific example of the present invention.
  • FIG. 2 is a schematic view showing a side surface of a roll forming apparatus according to a specific example of the present invention.
  • FIG. 2 is a schematic view showing an upper surface of a roll forming apparatus according to a specific example of the present invention.
  • FIG. 4 is an explanatory diagram of roll forming according to a specific example of the present invention.
  • FIG. 8 is an explanatory diagram of roll forming according to a specific example of the present invention. It is an explanatory view of roll forming concerning a specific example of the present invention.
  • the heat exchanger 100 of the present example shown in FIGS. 1 and 2 is a condenser of a refrigeration cycle for in-vehicle air conditioning mounted on an automobile, and has a plurality of tubes 200 stacked through fins 300. 0, and a pair of nozzles 400 connected to both ends of each tube 200, respectively, and the medium (that is, the refrigerant) is cooled by the heat transmitted to the tubes 200 and the fins 300. It is configured to be condensed.
  • the pair of tanks 400 is provided with an inlet connector 410 for inflow of the medium and an outlet connector 420 for outflow of the medium. After being introduced into the inside of the tube 0 and flowing through the tube 200 while performing heat exchange, it is discharged to the outside from the outlet connector 420.
  • the tank 400 is formed by partitioning the inside of the cylindrical body at a predetermined interval by a partition member, and the medium is configured to flow between the tanks 400.
  • side plates 500 as reinforcing members are provided on the upper and lower sides of the layer composed of the tube 200 and the fin 300, respectively. Both ends of the side plate 500 are supported in each tank 400.
  • one of the tanks is provided with a receiver connector 330 for mounting the receiver 600.
  • the receiver 600 cares for the medium. It is separated into a liquid layer and a liquid layer, and is detachably attached to the liquid receiver connector 4300 provided in the tank 400 by screwing.
  • the medium In the process of flowing the medium from the inlet connector 410 to the outlet connector 420, the medium is once sent from the tank 400 to the receiver 600, and only the liquid layer goes to the outlet connector 420. That is, the lower part of the present heat exchanger 100 is a subcool section for cooling the refrigerant in the liquid layer separated by the liquid receiver 600.
  • the members constituting the tube 200, the fin 300, the tank 400, and the side plate 500 are made of aluminum or an alloy thereof, and the heat exchanger 100 is Then, each member is assembled together, and the assembled body is subjected to heat treatment in a furnace to be manufactured. At the time of brazing in the furnace, brazing filler metal and flux are provided in advance at key points of each component.
  • the tank 400 of this example has a cylindrical shape by combining a first tank member 450 and a second ink member 450 each having a semi-cylindrical shape.
  • a partition member is arranged between the second tank members 450.
  • the first tank member 440 is a plate member in which the same type of slides 441 are arranged at a constant pitch in the longitudinal direction.
  • the end of the tube 200 and the end of the side plate 500 are inserted into and connected to these slides 441, respectively.
  • the second tank member 450 is a plate member in which force-screwing pieces 451 are arranged at a constant pitch on both edges in the longitudinal direction, and the first tank member 44 is provided between the two edges. 0 is fitted, and the required force-slipping piece 451 is deformed to hold the first sunset member 4440. Openings for connecting the inlet connector 410, the outlet connector 420, and the receiver connector 430, respectively, are provided at key points of each second sunset member 450. Can be
  • the tube 200 of the present example has a flat shape having a plurality of flow paths 201 partitioned by beads 202.
  • the tube 200 is formed by mouth-forming a band-shaped material A made of an aluminum alloy, and is formed by winding the material A on one side.
  • a coupling portion 203 is provided.
  • the flat portion 204 where the shape of the material A becomes flat is formed by bending the material A once and then returning it to flatness. Then, key portions of the bead 202 and the joint portion 203 are brazed by the above-mentioned furnace brazing.
  • the roll forming of the raw material A is performed using a roll forming apparatus 10 in which a plurality of rolls 11 are continuously arranged.
  • Material A was recrystallized by annealing.
  • a material that has been completely recrystallized by annealing (a temper code “0” specified in JIS H00011) is used.
  • the roll forming apparatus 10 has a configuration in which a material A wound in a coil shape is fed from an end side thereof by a feed roller 12 and is formed stepwise by a roll 11.
  • Each roll 11 is a pair of upper and lower rolls each having a predetermined shape, and the material A is plastically deformed by passing between the pair of upper and lower rolls 11 o
  • SO1 to S31 which will be described later, are formed in the roll 11 (for example, 31 rolls) of the former stage 10a in the roll forming apparatus 10.
  • the roll 11 of the subsequent stage 10b shifts the passing position of the material A in the left-right direction, so that the entire material A It is configured to cause such bending.
  • the distance between the rolls 11 with respect to the transport direction is set to about 80 to 120 mm, and the passing position of the material A on each roll 11 is set. It is shifted about 5 to 10 mm alternately left and right.
  • the transport direction of the material A between these rolls 11 is non-linear, meandering left and right. According to such a configuration, the difference in work hardening of the material A can be reduced to some extent, and the delicate distortion of the tube shape can be corrected.
  • the material A is formed into a predetermined tube shape by such roll forming, and is cut by the cutting device 20.
  • the cutting device 20 includes a cutting blade 21 for cutting the material A, and a pedestal 22 for receiving the load of the cutting blade 21.
  • the cutting blade 21 reciprocates up and down, and the cutting blade 21 and the pedestal 22 reciprocate along the transport direction of the material A.
  • the material A in the form of a tube is discharged at a constant speed from the portal forming device 10 and is cut into a predetermined length by the cutting blade 21 and the pedestal 22 moving in synchronization with the material. You.
  • 6 to 8 are explanatory views showing the roll forming of the present example, and show the sectional shape of the material A in a stepwise manner. As shown in these figures, the raw material A is formed in the order of S01 to S31.
  • FIG. 9 is an enlarged view of a main part of S01 to S02. Sizing is performed by pressing the edge of the strip-shaped material A and compressing the width of the material A. According to such sizing, the dimensional control of the tube can be performed more strictly.
  • a plurality of irregularities are roughly formed from near the center of the material A toward both ends (S03 to S08).
  • a plurality of beads 202 are provided at predetermined intervals by gradually compressing these concaves and convexes (S09 to S14).
  • both sides of bead 202 are formed by flattening material A after bending it.
  • a flat portion 204 is formed.
  • FIG. 10 is an enlarged view of a main part of S 19 to S 23.
  • the material A is further bent with the edge of the material A as a base point P.
  • the edge of the material A can be used as a base point P for bending, and by using this, complicated and fine forming can be performed relatively easily.
  • the burden of manufacturing the roll 11 is reduced.
  • the material A having both ends formed in this way is bent into two at the center of the material A (S25 to S30), and has a predetermined tube shape (S31). Further, both ends of the material A are joined to each other to form a joint portion 203.
  • the tube of this example achieves the rationalization of material roll forming and brazing, and has improved corrosion resistance, formability, and strength. It can be used very suitably as a tube for an exchanger. Industrial applicability
  • the present invention is a heat exchanger and the tube for use in a refrigeration cycle generally for automobiles and home air conditioner, a Riwake, as a refrigerant employing, for example, C 0 2, the critical pressure of the interior of the radiator of the refrigerant It is suitable for a refrigeration cycle exceeding the point.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

L'invention concerne un tube (200) ainsi qu'un échangeur de chaleur comprenant des tubes. Le tube (200) est formé par laminage et brasage d'un matériau métallique en forme de bande (A) recristallisé par recuit et présentant une partie plate (204) formée par aplatissage après l'opération de pliage, l'échangeur thermique comprenant une pluralité de ces tubes (200). L'invention concerne également un dispositif de profilage (10) comprenant une pluralité de cylindres (11) disposés en continu les uns par rapport aux autres, le sens de déplacement du matériau entre ces cylindres étant non linéaire. Pendant le profilage, on confère une largeur donnée au matériau, puis, après une première opération de pliage, on plie le bord dudit matériau au niveau d'un point de base P.
PCT/JP2002/010423 2001-10-10 2002-10-07 Tube et echangeur de chaleur comprenant des tubes WO2003033188A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003535967A JPWO2003033188A1 (ja) 2001-10-10 2002-10-07 チューブ及びチューブを備えた熱交換器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001/312692 2001-10-10
JP2001312692 2001-10-10

Publications (1)

Publication Number Publication Date
WO2003033188A1 true WO2003033188A1 (fr) 2003-04-24

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ID=19131303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/010423 WO2003033188A1 (fr) 2001-10-10 2002-10-07 Tube et echangeur de chaleur comprenant des tubes

Country Status (2)

Country Link
JP (1) JPWO2003033188A1 (fr)
WO (1) WO2003033188A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040118A1 (fr) * 2004-10-12 2006-04-20 Behr Gmbh & Co. Kg Tube plat destine a un echangeur thermique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140757U (ja) * 1984-02-27 1985-09-18 日新製鋼株式会社 連続造管装置における管の張力制御装置
JPH05192709A (ja) * 1991-06-04 1993-08-03 Nakajima Kokan Kk 大径角形鋼管の熱間成形工法
JPH06154850A (ja) * 1992-11-25 1994-06-03 Meidensha Corp 角形電縫管の製造方法
JPH10291028A (ja) * 1997-04-21 1998-11-04 Shinko Mecs Kk 薄肉大径スパイラル鋼管の製造方法およびその設備
JPH11104768A (ja) * 1997-09-29 1999-04-20 Zexel:Kk 熱交換器用チューブの製造装置
JPH11151518A (ja) * 1997-11-18 1999-06-08 Nakata Seisakusho:Kk パイプのロール成形、押出しおよび引抜き加工の組み合わせ加工方法
JP2000158070A (ja) * 1998-12-02 2000-06-13 Toyota Motor Corp 熱交換器用チューブ
JP2001170713A (ja) * 1999-12-10 2001-06-26 Karutekku:Kk 管状体の製造方法及びロール成形機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140757U (ja) * 1984-02-27 1985-09-18 日新製鋼株式会社 連続造管装置における管の張力制御装置
JPH05192709A (ja) * 1991-06-04 1993-08-03 Nakajima Kokan Kk 大径角形鋼管の熱間成形工法
JPH06154850A (ja) * 1992-11-25 1994-06-03 Meidensha Corp 角形電縫管の製造方法
JPH10291028A (ja) * 1997-04-21 1998-11-04 Shinko Mecs Kk 薄肉大径スパイラル鋼管の製造方法およびその設備
JPH11104768A (ja) * 1997-09-29 1999-04-20 Zexel:Kk 熱交換器用チューブの製造装置
JPH11151518A (ja) * 1997-11-18 1999-06-08 Nakata Seisakusho:Kk パイプのロール成形、押出しおよび引抜き加工の組み合わせ加工方法
JP2000158070A (ja) * 1998-12-02 2000-06-13 Toyota Motor Corp 熱交換器用チューブ
JP2001170713A (ja) * 1999-12-10 2001-06-26 Karutekku:Kk 管状体の製造方法及びロール成形機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040118A1 (fr) * 2004-10-12 2006-04-20 Behr Gmbh & Co. Kg Tube plat destine a un echangeur thermique

Also Published As

Publication number Publication date
JPWO2003033188A1 (ja) 2005-02-03

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