WO1998033034A1 - Heat exchanger core based on aluminum and process for producing the same - Google Patents
Heat exchanger core based on aluminum and process for producing the same Download PDFInfo
- Publication number
- WO1998033034A1 WO1998033034A1 PCT/JP1998/000203 JP9800203W WO9833034A1 WO 1998033034 A1 WO1998033034 A1 WO 1998033034A1 JP 9800203 W JP9800203 W JP 9800203W WO 9833034 A1 WO9833034 A1 WO 9833034A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- aluminum
- fin
- brazing
- tube
- Prior art date
Links
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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
-
- 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
- F28D1/04—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 tubular conduits
- F28D1/053—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 tubular conduits the conduits being straight
- F28D1/0535—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 tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0012—Brazing 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
- B23K35/025—Pastes, creams, slurries
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
-
- 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
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
-
- 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
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
- B23K35/288—Al as the principal constituent with Sn or Zn
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
Definitions
- This invention relates to a heat exchanger core based on aluminum and also to a process for producing the same. More particularly, the invention relates to a heat exchanger core based on aluminum in which an aluminum-based flattened heat exchanger tube, for example, and an aluminum-based fin are held in brazed relation to each other by the use of a brazing composition. The invention further relates to a process for the production of such heat exchanger core.
- zinc (Zn) has generally been caused to adhere to the flat heat exchanger tube on its outer surface, followed by diffusion of Zn over the outer surface of such flat tube during brazing with heat and by subsequent formation of a Zn diffusion layer thereover.
- the fin has been prepared from a brazing sheet chosen from among those materials clad with a Zn-containing brazing material, namely of a brazing composition.
- brazing sheet for use in fin preparation, however, is costly as compared to a blank fin material not clad with a brazing material. Moreover, because of the cladding on its surface with a brazing material , the brazing sheet leads to rapid abrasion of a fin working roll, thus needing frequent polishing of such working roll. As a further problem, flashes or burres tend to take place when in working of a louver or the like with eventual quality deterioration of the finished heat exchanger core .
- silicon (Si) is applied to and brazed with a flat heat exchanger
- a flat heat exchanger tube is prepared from an electrically
- Another object of the invention is to provide a process for the production of such heat exchanger core .
- the invention recited in claim 1 is directed to a heat exchanger core based on aluminum wherein an aluminum-based heat exchanger tube and an aluminum-based fin are held in brazed relation to each other by the use of a brazing composition, characterized in that a mixed diffusion layer composed of a mixture of silicon and zinc is formed on an outer surface of the heat exchanger tube, and the fin is ormed by an aluminum-based material containing zinc, which zinc is used for formation of a part of the mixed diffusion layer.
- the invention recited in claim 3 is directed to a process for the production of a heat exchanger core based on aluminum wherein an aluminum-based heat exchanger tube and an aluminum-based fin are held in brazed relation to each other by the use of a brazing composition, characterized in that the process comprises applying on to an outer surface of the heat exchanger tube a brazing composition derived from a mixture of silicon and fluorine type flux, preparing the fin formed of an aluminum-based zinc-containing material , and subsequently heating the heat exchanger tube and the fin at a given temperature, thereby bringing the exchanger tube and the fin into brazed relation to each other and also forming on an outer surface of the heat exchanger tube a mixed diffusion layer of silicon and zinc.
- the maximum concentration is in the range of 0.5 - 1.5% in terms of silicon and of 0.4 - 3.0% in terms of zinc.
- the above heat exchanger tube may be of an optional shape so long as it is based on aluminum.
- such tube may be an extruded flattened tube based on aluminum and provided with a plurality of passages for supply of a heating medium.
- concentration of zinc in the above described fin may be in the range of 1 - 5% (claim 2) .
- a mixture of silicon and fluorine type flux is employed as a brazing composition with the result that the heat exchanger tube is not required for Zn to previously adhere thereto, and a blank fin-forming
- Zn-containing material not clad with a brazing composition may be used to advantage.
- Part of the resulting fin is molten with the aid of a brazing composition during brazing, whereby the zinc contained in the fin is diffused over an outer surface of the heat exchanger tube so as to form thereover a mixted diffusion layer resulting from silicon and zinc.
- a zinc diffusion layer can be formed on an outer surface of the heat exchanger tube without zinc adhesion previously needed relative to the latter tube.
- the fin does not need to be clad with a brazing composition and hence ensures easy formation andmoreover avoids flashes or burres with ultimate production of a heat exchanger core of high quality. Improved productivity is further attainable with saved cost.
- FIG. 1 illustrates, in perspective, important parts of one form of a heat exchanger having assembled therein the heat exchanger core according to the present invention.
- FIG. 2 is a perspective view showing each of an extruded flattened tube and a corrugated fin which have embodied the invention .
- FIG. 3 is a cross-sectional view showing the manner in which a brazing composition is applied on to an extruded flattened tube in accordance with the invention.
- FIG.4 is a cross-sectional view, partly enlarged, of the manner in which a heat exchanger tube and a fin are brought into brazed relation to each other in accordance with the invention.
- reference numeral 4 refers to an extruded flattened tube (a heat exchanger tube) , 5 to a corrugated fin, 6 to a heat exchanger core, 7 to a brazing composition and 8 to a diffusion layer of Si and Zn.
- FIG. 1 is a perspective view showing important parts of one form of a heat exchanger having assembled therein the heat exchanger core according to the invention.
- the above heat exchanger is constructed with a pair of header tubes 3 placed in a spaced opposed posture and having a heating medium inlet 1 or a heating medium outlet 2 , a plurality of extruded flattened tubes 4 serving as heat exchanger tubes , the extruded flattened tubes being arranged in parallel with each other and communicating with the header tubes 3, and fins such as for example corrugated fins 5 interposed between the extruded flattened tubes .
- the header tubes 3 and the extruded flattened tubes 4 are formed by an extruded shape based on aluminum, and the corrugated fins 5 are formed by flexing an aluminum-based plate material into alternate furrows and ridges or into a wavy configuration.
- the header tubes 3, the extruded flattened tubes 4 and the corrugated fins 5 are brought into integrally brazed relation to one another with use of a brazing composition (a brazing material) so that a heat exchanger is produced.
- a heat exchanger core 6 made up of the extruded flattened tubes 4 and the corrugated fins 5 are formed by those aluminum-based extruded flattened tubes (JIS A1050 for example) which are not pretreated with adhesion of zinc (Zn) , and the corrugated fins 5 are formed by an aluminum-based extruded flattened tubes (JIS A1050 for example) which are not pretreated with adhesion of zinc (Zn) , and the corrugated fins 5 are formed by an aluminum-based
- the brazing material As the brazing material, a mixture of powdered silicon (Si) and powdered fluorine type flux, or a mixture of powdered Si, powdered Zn and powdered fluorine type flux has been in common use.
- the fluorine type flux may be a composition for example of KA1F4 , K2A1F5.H20 or K3A1F6. This sort of fluorine type flux is desirable since it is unlike a chloride and immune from being corrosive to aluminum.
- a first process step lies in preparing, as seen in FIG. 2, the extruded flattened tubes 4 based on aluminum and having defined therein a plurality of passages for running of a heating medium and the corrugated fins 5 flexed in wavy arrangement and containing Zn.
- the corrugated fins 5 are derived from flexing of a Zn-containing aluminum-based plate material (JIS A3N03 for example) into a wavy shape with use of a working roll.
- the working roll is less susceptible to abrasion than in the case of a brazing material-clad brazing sheet.
- Another advantage is that no flashes nor burres occur even when a louver or the like is worked and mounted on the fins . This contributes to enhanced quality of the fins.
- a brazing composition 7 is thereafter applied on to a surface of the extruded flattened tube 4, as shown in FIG. 3, by the use of a binder such as for example a thermoplastic acrylic resin or the like.
- a binder such as for example a thermoplastic acrylic resin or the like.
- the application of this brazing composition to the extruded flattened tube 4 may be effected for example by spray-coating a mixed slurry of the binder and the brazing composition, or by immersing the extruded flattened tube 4 in a mixed slurry of the binder and the brazing composition and then by pulling up the tube vertically from the slurry to thereby remove excess slurry.
- the extruded flattened tube 4 so loaded with the brazing composition and the Zn-containing corrugated fins 5 are incorporated with and fixed to each other with use of a tool, not shown, or are fixed to each other by attachment to the header
- the brazing composition is caused to melt to bring the extruded
- part of the corrugated fin 5 melts by the action of the brazing composition with the consequence that the Zn contained in the corrugated fin 5 diffuses over an outer surface of the extruded flattened tube 4, ultimately cooperating with the Si contained in the brazing composition in forming a diffusion layer 8 of
- fins (1) material blank material (JIS A3N03 + content of Zn 0 - 4.0%) : brazing sheet (A4343 + 1.0% Zn/
- Comparative Examples 1 and 2 as well as Current Brazing Methods 1 and 2 posed path through up to a length of testing time for 1500 hours, whereas the products of Examples 1 - 4 have proved to be free from such holes even after lapse of such testing time.
- the diffusion state of Zn in Examples 1 - 4 is 0.6% - 2.2% and 72 ⁇ m - 80 ⁇ m, and the diffusion state of Si is 0.8% - 1.0% and
- a heat exchanger core obtained from a fin based on aluminum and having a content of Zn of 1.2% -4.0% and an extruded flattened tube based on aluminum and having omitted adhesion of Zn in advance which have been brazed with each other by the use of a brazing composition composed of a mixture of powdered Si and fluorine type flux, is capable of affording brazing capability and corrosion resistance similar to or higher than those of the heat exchanger core currently practiced in the art.
- lower contents of Zn in the fin material than 1% bring about a surface diffusion concentration of Zn of below 0.4%, thus resulting in insufficient anodic action in the Zn diffusion layer.
- the present invention enables a mixture of silicon and fluorine type flux to be employed as a brazing composition so that a heat exchanger tube is not required for adhesion of Zn in advance, and a blank fin material containing Zn but not clad with a brazing composition can be used in forming a fin .
- Part of the fin thus melts when undergoing the action of the brazing composition, whereby the zinc contained in the fin diffuses over an outer surface of the heat exchanger tube and hence functions as forming a diffusion layer composed of a mixture of silicon and zinc over such outer surfac .
- a zinc diffusion layer can be formed on an outer surface of the heat exchanger tube without zinc adhesion previously needed relative to the latter tube.
- This in turn allows a heat exchanger core to be easily provided with high corrosion resistance and high brazing capability.
- Another advantage is that the fin does not need to be clad with a brazing composition, hence ensuring easy workability and moreover avoiding flashes or burres, with eventual provision of a heat exchanger core of high quality.
- high productivity is feasible with cost savings.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Coating With Molten Metal (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Laminated Bodies (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL13075698A IL130756A (en) | 1997-01-24 | 1998-01-21 | Heat exchanger core based on aluminum and process for producing the same |
CA002275569A CA2275569A1 (en) | 1997-01-24 | 1998-01-21 | Heat exchanger core based on aluminum and process for producing the same |
US09/341,589 US6193140B1 (en) | 1997-01-24 | 1998-01-21 | Heat exchanger core based on aluminum and process for producing the same |
EP98900670A EP0953137B1 (en) | 1997-01-24 | 1998-01-21 | Process for producing a heat exchanger core based on aluminum |
AT98900670T ATE210812T1 (en) | 1997-01-24 | 1998-01-21 | METHOD FOR PRODUCING A HEAT EXCHANGER CORE FROM ALUMINUM |
BR9806927-6A BR9806927A (en) | 1997-01-24 | 1998-01-21 | Aluminum heat exchanger core and process to produce the same |
DE69802900T DE69802900T2 (en) | 1997-01-24 | 1998-01-21 | METHOD FOR PRODUCING A ALUMINUM HEAT EXCHANGER CORE |
AU55745/98A AU725931B2 (en) | 1997-01-24 | 1998-01-21 | Process for the production of the heat exchanger core based on aluminum |
KR1019997006582A KR20000070349A (en) | 1997-01-24 | 1998-01-21 | Heat exchanger core based on aluminum and process for producing the same |
NO993591A NO993591L (en) | 1997-01-24 | 1999-07-23 | Heat exchanger core based on aluminum and a process for producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02455997A JP3328923B2 (en) | 1997-01-24 | 1997-01-24 | Manufacturing method of aluminum heat exchanger core |
JP9/24559 | 1997-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998033034A1 true WO1998033034A1 (en) | 1998-07-30 |
Family
ID=12141524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000203 WO1998033034A1 (en) | 1997-01-24 | 1998-01-21 | Heat exchanger core based on aluminum and process for producing the same |
Country Status (15)
Country | Link |
---|---|
US (1) | US6193140B1 (en) |
EP (1) | EP0953137B1 (en) |
JP (1) | JP3328923B2 (en) |
KR (1) | KR20000070349A (en) |
CN (1) | CN1244249A (en) |
AT (1) | ATE210812T1 (en) |
AU (1) | AU725931B2 (en) |
BR (1) | BR9806927A (en) |
CA (1) | CA2275569A1 (en) |
DE (1) | DE69802900T2 (en) |
ID (1) | ID23923A (en) |
IL (1) | IL130756A (en) |
NO (1) | NO993591L (en) |
RU (1) | RU2194596C2 (en) |
WO (1) | WO1998033034A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6729388B2 (en) * | 2000-01-28 | 2004-05-04 | Behr Gmbh & Co. | Charge air cooler, especially for motor vehicles |
AU2003274761A1 (en) * | 2002-10-30 | 2004-05-25 | Showa Denko K.K. | Heat exchanger, heat exchanger tube member, heat exchanger fin member and process for fabricating the heat exchanger |
KR20040051033A (en) * | 2002-12-11 | 2004-06-18 | 엘지전자 주식회사 | Apparatus for preventing corrosion of condenser in air conditioner |
US7722922B2 (en) * | 2003-10-20 | 2010-05-25 | Furukawa-Sky Aluminum Corp. | Coating apparatus for an aluminum alloy heat exchanger member, method of producing a heat exchanger member, and aluminum alloy heat exchanger member |
JP2006132920A (en) * | 2004-07-15 | 2006-05-25 | Showa Denko Kk | Heat exchanger |
JP5485539B2 (en) * | 2007-12-18 | 2014-05-07 | 昭和電工株式会社 | Method for producing heat exchanger member and heat exchanger member |
CN101676667B (en) * | 2008-09-02 | 2015-08-19 | 康奈可关精株式会社 | Aluminum alloy heat exchanger and manufacture method thereof |
JP4388994B1 (en) * | 2008-12-25 | 2009-12-24 | シャープ株式会社 | Heat exchanger |
JP5632140B2 (en) * | 2009-06-24 | 2014-11-26 | 株式会社Uacj | Aluminum alloy automotive heat exchanger and method of manufacturing the same |
JP5658227B2 (en) | 2010-03-02 | 2015-01-21 | 三菱アルミニウム株式会社 | Aluminum alloy heat exchanger |
BR112013027220A2 (en) * | 2011-04-25 | 2016-12-27 | Delphi Tech Inc | method to manufacture an aluminum heat exchanger |
US20170205159A1 (en) * | 2014-05-26 | 2017-07-20 | Uacj Corporation | Heat exchanger tube, heat exchanger, and brazing paste |
KR102391896B1 (en) * | 2014-09-19 | 2022-04-27 | 가부시키가이샤 티라도 | Corrugated fins for heat exchanger |
FR3040478B1 (en) * | 2015-08-25 | 2017-12-15 | Valeo Systemes Thermiques | HEAT EXCHANGER |
US20220065560A1 (en) * | 2018-09-14 | 2022-03-03 | Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | Welding method of connector and connection tube, connection structure and heat exchanger |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3206298A1 (en) * | 1981-02-27 | 1982-10-07 | Nippondenso Co., Ltd., Kariya, Aichi | Method of producing an aluminium heat exchanger |
US4831701A (en) * | 1985-02-12 | 1989-05-23 | Sanden Corporation | Method of making a corrosion resistant aluminum heat exchanger using a particulate flux |
US5148862A (en) * | 1990-11-29 | 1992-09-22 | Sumitomo Light Metal Industries, Ltd. | Heat exchanger fin materials and heat exchangers prepared therefrom |
JPH04270058A (en) * | 1991-02-22 | 1992-09-25 | Furukawa Alum Co Ltd | Production of heat exchanger made of al |
US5732767A (en) * | 1996-01-24 | 1998-03-31 | Modine Manufacturing Co. | Corrosion resistant heat exchanger and method of making the same |
-
1997
- 1997-01-24 JP JP02455997A patent/JP3328923B2/en not_active Expired - Lifetime
-
1998
- 1998-01-21 KR KR1019997006582A patent/KR20000070349A/en not_active Application Discontinuation
- 1998-01-21 DE DE69802900T patent/DE69802900T2/en not_active Revoked
- 1998-01-21 CN CN98801950A patent/CN1244249A/en active Pending
- 1998-01-21 AT AT98900670T patent/ATE210812T1/en not_active IP Right Cessation
- 1998-01-21 BR BR9806927-6A patent/BR9806927A/en not_active Application Discontinuation
- 1998-01-21 AU AU55745/98A patent/AU725931B2/en not_active Ceased
- 1998-01-21 WO PCT/JP1998/000203 patent/WO1998033034A1/en not_active Application Discontinuation
- 1998-01-21 ID IDW990910A patent/ID23923A/en unknown
- 1998-01-21 EP EP98900670A patent/EP0953137B1/en not_active Revoked
- 1998-01-21 IL IL13075698A patent/IL130756A/en not_active IP Right Cessation
- 1998-01-21 RU RU99118314/06A patent/RU2194596C2/en active
- 1998-01-21 US US09/341,589 patent/US6193140B1/en not_active Expired - Fee Related
- 1998-01-21 CA CA002275569A patent/CA2275569A1/en not_active Abandoned
-
1999
- 1999-07-23 NO NO993591A patent/NO993591L/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3206298A1 (en) * | 1981-02-27 | 1982-10-07 | Nippondenso Co., Ltd., Kariya, Aichi | Method of producing an aluminium heat exchanger |
US4831701A (en) * | 1985-02-12 | 1989-05-23 | Sanden Corporation | Method of making a corrosion resistant aluminum heat exchanger using a particulate flux |
US5148862A (en) * | 1990-11-29 | 1992-09-22 | Sumitomo Light Metal Industries, Ltd. | Heat exchanger fin materials and heat exchangers prepared therefrom |
JPH04270058A (en) * | 1991-02-22 | 1992-09-25 | Furukawa Alum Co Ltd | Production of heat exchanger made of al |
US5732767A (en) * | 1996-01-24 | 1998-03-31 | Modine Manufacturing Co. | Corrosion resistant heat exchanger and method of making the same |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 017, no. 059 (M - 1363) 5 February 1993 (1993-02-05) * |
Also Published As
Publication number | Publication date |
---|---|
CA2275569A1 (en) | 1998-07-30 |
IL130756A (en) | 2002-07-25 |
IL130756A0 (en) | 2001-01-28 |
RU2194596C2 (en) | 2002-12-20 |
JP3328923B2 (en) | 2002-09-30 |
CN1244249A (en) | 2000-02-09 |
AU5574598A (en) | 1998-08-18 |
NO993591L (en) | 1999-09-23 |
ATE210812T1 (en) | 2001-12-15 |
NO993591D0 (en) | 1999-07-23 |
BR9806927A (en) | 2000-05-02 |
ID23923A (en) | 2000-05-25 |
DE69802900D1 (en) | 2002-01-24 |
US6193140B1 (en) | 2001-02-27 |
KR20000070349A (en) | 2000-11-25 |
EP0953137A1 (en) | 1999-11-03 |
DE69802900T2 (en) | 2002-08-22 |
EP0953137B1 (en) | 2001-12-12 |
AU725931B2 (en) | 2000-10-26 |
JP2000351062A (en) | 2000-12-19 |
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