US3689941A - Method of fabricating and soldering stainless steel parts - Google Patents
Method of fabricating and soldering stainless steel parts Download PDFInfo
- Publication number
- US3689941A US3689941A US49154A US3689941DA US3689941A US 3689941 A US3689941 A US 3689941A US 49154 A US49154 A US 49154A US 3689941D A US3689941D A US 3689941DA US 3689941 A US3689941 A US 3689941A
- Authority
- US
- United States
- Prior art keywords
- sheets
- lead
- stainless steel
- molten
- bath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 34
- 239000010935 stainless steel Substances 0.000 title claims abstract description 32
- 238000005476 soldering Methods 0.000 title claims description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 18
- 238000005554 pickling Methods 0.000 claims description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 235000005074 zinc chloride Nutrition 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 235000011167 hydrochloric acid Nutrition 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 229910001369 Brass Inorganic materials 0.000 abstract description 6
- 239000010951 brass Substances 0.000 abstract description 6
- 229910001174 tin-lead alloy Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- -1 ferrous metals Chemical class 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 229910000978 Pb alloy Inorganic materials 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011221 initial treatment Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- LUTSRLYCMSCGCS-BWOMAWGNSA-N [(3s,8r,9s,10r,13s)-10,13-dimethyl-17-oxo-1,2,3,4,7,8,9,11,12,16-decahydrocyclopenta[a]phenanthren-3-yl] acetate Chemical compound C([C@@H]12)C[C@]3(C)C(=O)CC=C3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)C)C1 LUTSRLYCMSCGCS-BWOMAWGNSA-N 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
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
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
-
- 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
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
- B23K35/004—Interlayers, transition pieces for metallurgical bonding of workpieces at least one of the workpieces being of a metal of the iron group
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/10—Lead or alloys based thereon
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/037—Stamping with other step
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49393—Heat exchanger or boiler making with metallurgical bonding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49982—Coating
Definitions
- the present invention is directed to a new method for manufacturing heat exchangers and, more particularly, cooling or heating radiators for vehicles, which has the great advantage of enabling the use of stainless steel for making the entire radiator or parts thereof so that the radiator may still, if necessary, comprise parts of cupreous metals. Furthermore, existing manufacturing equipment, such as the shaping tools and the assembling machines, may be used and with the certainty that the radiators thus produced will retain not only the same qualities, but also'improved qualities with respect to those made of brass and copper. This result is obtained while greatly reducing the manufacturing cost.
- the method comprises the steps of taking a sheet or strip of stainless steel as the basic material, treating said sheet or strip to cover the faces thereof with a coating of non-ferrous metal or lead alloy and adapted to be wet by soldering alloys containing tin and lead, shaping said parts from the sheet or strip of coated stainless steel and assembling the parts of the radiator through a conventional soldering process.
- a satisfactory procedure is to submit the stainless steel to an initial treatment comprising degreasing in an alkaline or acid bath, the composition of which may be variable. Baths used for degreasing ordinary iron sheets are perfectly satisfactory. Stainless steel is then submitted to a chemical pickling in a fluonitric aqueous bath which may contain from 2 to 10 percent of hydrofluoric acid and from 5 to 30 percent of nitric acid, this pickling being performed at ambient temperature. The sheets or strips of stainless steel thus depassivated may be stored in a dry room for a very long time.
- the sheets or strips of stainless steel are submitted to a second pickling operation in a bath of the same kind asthe bath of the initial treatment, or preferably this second pickling is made by dipping in an aqueous bath containing 100 to g/liter of hydrochloric acid, i.e., a tri or quadrimolar bath.
- the stainless steel is rinsed with fresh water, then immediately submitted to a fluxing operation by introduction into a molten salt bath containing 85 to parts by weight of zinc chloride and 15 to 25 parts by weight of ammonium chloride.
- the steel As soon as the steel leaves the fluxing salt bath, it is passed or dipped into a molten bath containing from 8 to 40 parts per weight of tin and from 60 to 92 parts per weight of lead.
- the sheets or strips are submitted to a powerful wiping action while the tin-lead alloy is still molten. This wiping action may be carried out by blowing hot air or by means of rolls or by a combination of these two opera tions.
- the thickness of the alloy with a high percentage of lead which is thus deposited must be as thin as possible because it is only desired to form on the stainless steel surface a dependent coat suitable for subsequent wetting by soft solder. As the lower limit, a molecular coat is sufficient but in practice for convenience in manufacturing, this coat may be between about 0.5g. and in thickness.
- the constitutive parts of the radiator are shaped by rolling with regard to the ducts, or by stamping with regard to collectors and water-boxes, only after the basic metal has been coated on the two faces thereof.
- stamping it has been found that it is much easier to coat strips or continuous sheets of stainless steel with an added metal when said strips or sheets are not previously mechanically worked.
- the stamping of stainless coated steel is made considerably easier by said coating alloy, the stamping operations particularly, can be made in a manner as simple and with the same tooling used for working non-ferrous alloys such as brass. This is generally not the case when parts are stamped from a non-coated stainless steel sheet.
- the parts of coated stainless steel, made according to the invention may be fitted together, or with parts of other metals such as copper or brass, with exactly the same procedure as for assembling said parts of non-ferrous metals. Therefore, the parts are submitted to fluxing, then they are joined with a soft solder comprising a tin-lead alloy, the dependent coat covering both faces of the element of stainless steel thus ensuring the intimate connection with the soft solder.
- the invention thus enables the manufacture of radiators of which all the elements may be made of stainless steel, thereby providing radiators having improved mechanical characteristics and making possible operation under higher pressure conditions for the water circuits. Moreover, this result is obtained at a lesser cost than for analogous radiators made of non-ferrous metals, for example brass.
- a method of making products of which at least some parts are made from sheets of stainless steel which method includes the steps of providing a sheet of stainless steel containing no nickel and at least 13 percent by weight of chromium,
- Method according to claim 1 comprising the further step of submitting the sheet, before deoxidizing, to degreasing, then to pickling in a fluonitric bath whereby the steel is depassivated.
- step of deoxidizing the sheets includes subjecting the depassivated sheets to a pickling bath containing from three to four moles of acid by liter, then to a fluxing step in a molten bath containing zinc and ammonium chlorides.
- step of covering includes dipping the fluxed sheet in a molten bath of a high lead percentage alloy, and wiping the sheet whereby the coating has a thickness between 0.541. and 201.1
- a method of making products comprising at least some parts made from sheets of stainless steel and some portions of copper alloys, said stainless steel containing no nickel and at least 13 percent by weight of chromiurn, which method includes the steps of pickling the sheets of stainless steel in a fluonitric bath; keeping the pickled sheet in a dry atmosphere before use; at the moment of use;
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR696922044A FR2045742B1 (enrdf_load_stackoverflow) | 1969-06-30 | 1969-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3689941A true US3689941A (en) | 1972-09-12 |
Family
ID=9036647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US49154A Expired - Lifetime US3689941A (en) | 1969-06-30 | 1970-06-23 | Method of fabricating and soldering stainless steel parts |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3689941A (enrdf_load_stackoverflow) |
| JP (1) | JPS502869B1 (enrdf_load_stackoverflow) |
| BE (1) | BE752422A (enrdf_load_stackoverflow) |
| DE (1) | DE2030925A1 (enrdf_load_stackoverflow) |
| ES (1) | ES381193A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2045742B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1306835A (enrdf_load_stackoverflow) |
| NL (1) | NL165669C (enrdf_load_stackoverflow) |
| SE (1) | SE379946B (enrdf_load_stackoverflow) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838495A (en) * | 1971-03-26 | 1974-10-01 | Bayerische Motoren Werke Ag | Method of forming closed sheet metal structures with an internal corrosion-resistant coating |
| US3963162A (en) * | 1973-08-13 | 1976-06-15 | Senju Metal Industry Co. Ltd. | Method of soldering stainless steel pipes by using soft solders |
| FR2703282A1 (fr) * | 1993-03-31 | 1994-10-07 | Lorraine Laminage | Procédé d'assemblage de tôles d'acier revêtues d'une couche d'alliage comprenant principalement du plomb. |
| USRE35098E (en) * | 1979-12-20 | 1995-11-28 | Modine Manufacturing Co. | Method of making a heat exchanger |
| US5822854A (en) * | 1994-07-22 | 1998-10-20 | Mitsubishi Denki Kabushiki Kaisha | Method of fabricating a heat exchanger for an air conditioner |
| US10010984B2 (en) | 2013-10-31 | 2018-07-03 | MAHLE Behr GmbH & Co. KG | Method for the production of a heat exchanger, particularly a sorption heat exchanger |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1130790A (en) * | 1979-12-20 | 1982-08-31 | Zalman P. Saperstein | Heat exchanger |
| ES487463A0 (es) * | 1980-01-04 | 1980-11-01 | Puma Chausson Radiadores | Procedimiento para la fabricacion de cambiadores de calor,en particular radiadores |
| FR2549494B1 (fr) * | 1983-07-19 | 1989-03-24 | Vaillant Sarl | Procede de plombage d'elements de construction presentant des surfaces en cuivre et en acier |
| DE102007038217A1 (de) | 2007-08-13 | 2009-02-19 | Behr Gmbh & Co. Kg | Verfahren zum Beloten eines Werkstückes, Vorrichtung zur Durchführung des Verfahrens und Werkstück, belotet nach dem Verfahren |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498827A (en) * | 1945-10-01 | 1950-02-28 | Young Radiator Co | Oval oil cooler construction |
| US2937438A (en) * | 1958-07-14 | 1960-05-24 | Lloyd C Lemon | Method for joining aluminum to stainless steel |
| US3128546A (en) * | 1960-02-01 | 1964-04-14 | Pennsalt Chemicals Corp | Method and flux for soldering chromium oxide coated steel members |
| US3242565A (en) * | 1963-02-06 | 1966-03-29 | Robert E North | Fluxless joining of stainless steel to aluminum |
| US3465424A (en) * | 1967-01-26 | 1969-09-09 | Smith Corp A O | Method of forming glass coated steel articles |
-
1969
- 1969-06-30 FR FR696922044A patent/FR2045742B1/fr not_active Expired
-
1970
- 1970-06-22 SE SE7008625A patent/SE379946B/xx unknown
- 1970-06-23 US US49154A patent/US3689941A/en not_active Expired - Lifetime
- 1970-06-23 BE BE752422D patent/BE752422A/xx unknown
- 1970-06-23 DE DE19702030925 patent/DE2030925A1/de not_active Withdrawn
- 1970-06-24 GB GB3073070A patent/GB1306835A/en not_active Expired
- 1970-06-26 ES ES381193A patent/ES381193A1/es not_active Expired
- 1970-06-30 JP JP45056566A patent/JPS502869B1/ja active Pending
- 1970-06-30 NL NL7009673.A patent/NL165669C/xx not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2498827A (en) * | 1945-10-01 | 1950-02-28 | Young Radiator Co | Oval oil cooler construction |
| US2937438A (en) * | 1958-07-14 | 1960-05-24 | Lloyd C Lemon | Method for joining aluminum to stainless steel |
| US3128546A (en) * | 1960-02-01 | 1964-04-14 | Pennsalt Chemicals Corp | Method and flux for soldering chromium oxide coated steel members |
| US3242565A (en) * | 1963-02-06 | 1966-03-29 | Robert E North | Fluxless joining of stainless steel to aluminum |
| US3465424A (en) * | 1967-01-26 | 1969-09-09 | Smith Corp A O | Method of forming glass coated steel articles |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838495A (en) * | 1971-03-26 | 1974-10-01 | Bayerische Motoren Werke Ag | Method of forming closed sheet metal structures with an internal corrosion-resistant coating |
| US3963162A (en) * | 1973-08-13 | 1976-06-15 | Senju Metal Industry Co. Ltd. | Method of soldering stainless steel pipes by using soft solders |
| USRE35098E (en) * | 1979-12-20 | 1995-11-28 | Modine Manufacturing Co. | Method of making a heat exchanger |
| FR2703282A1 (fr) * | 1993-03-31 | 1994-10-07 | Lorraine Laminage | Procédé d'assemblage de tôles d'acier revêtues d'une couche d'alliage comprenant principalement du plomb. |
| US5822854A (en) * | 1994-07-22 | 1998-10-20 | Mitsubishi Denki Kabushiki Kaisha | Method of fabricating a heat exchanger for an air conditioner |
| US5964284A (en) * | 1994-07-22 | 1999-10-12 | Mitsubishi Denki Kabushiki Kaisha | Heat exchanger for air conditioner and method of fabricating the heat exchanger |
| US10010984B2 (en) | 2013-10-31 | 2018-07-03 | MAHLE Behr GmbH & Co. KG | Method for the production of a heat exchanger, particularly a sorption heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| SE379946B (enrdf_load_stackoverflow) | 1975-10-27 |
| ES381193A1 (es) | 1972-12-01 |
| NL165669C (nl) | 1981-05-15 |
| JPS502869B1 (enrdf_load_stackoverflow) | 1975-01-29 |
| GB1306835A (en) | 1973-02-14 |
| NL165669B (nl) | 1980-12-15 |
| FR2045742A1 (enrdf_load_stackoverflow) | 1971-03-05 |
| BE752422A (fr) | 1970-12-01 |
| FR2045742B1 (enrdf_load_stackoverflow) | 1974-02-22 |
| DE2030925A1 (de) | 1971-01-14 |
| NL7009673A (enrdf_load_stackoverflow) | 1971-01-04 |
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