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31. 发明专利

JP2587721B2 失效
公开(公告)号：JP2587721B2
公开(公告)日：1997-03-05
申请号：JP29144490
申请日：1990-10-29
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , KOBAYASHI TOSHIAKI , KOBAYASHI MICHIO , HIROMAE YOSHITAKA
IPC分类号： C25D3/22 , C25D3/56

32. 发明专利

JPH07185797A MANUFACTURE OF ALUMINUM MATERIAL FOR BRAZING AND BRAZING METHOD 失效
公开(公告)号：JPH07185797A
公开(公告)日：1995-07-25
申请号：JP35012193
申请日：1993-12-27
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , TAKENO SHINJI
IPC分类号： B23K1/19 , B23K1/20 , B23K31/02 , B23K35/22
摘要： PURPOSE:To avert the problem of brazing of a non-corrosive fluoride flux by treating an aluminum material for a specific time at a specific temp. with an aq. soln. of a specific compsn. CONSTITUTION:The aluminum material for brazing is produced by treating the aluminum material for 1 second to 20 minutes at 5 to 7 deg.C with the aq. soln. contg. the potassium fluoride of a concn. of 0.01 to 4O% and 0.01 to 40% one or >=2 kinds of a nitric acid, sulfuric acid, phosphoric acid and chromic acid in total of inorg. acids exclusive of their fluorides. As a result, brazing is made possible without incorperating a large amt. of getter material, such as Mg, into a brazing filler metal. Contamination of a brazing furnace is prevented and the need for a surface treatment just before brazing is eliminated. The efficiency of production is thus improved.

33. 发明专利

JPH07185795A MANUFACTURE OF ALUMINUM MATERIAL FOR BRAZING AND BRAZING METHOD 失效
公开(公告)号：JPH07185795A
公开(公告)日：1995-07-25
申请号：JP35012293
申请日：1993-12-27
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , TAKENO SHINJI
IPC分类号： B23K1/19 , B23K1/20 , B23K31/02 , B23K35/22
摘要： PURPOSE:To avert the problem of brazing of a non-corrosive oxide flux by treating an aluminum material for a specific time at a specific temp. with an aq. soln. contg. a potassium fluoride of a specific concn. CONSTITUTION:The aluminum for brazing is produced by treating the aluminum material for 1 second to 20 minutes at 5 to 70 deg.C with the aq. soln. contg. the potassium fluoride of the concn. of 0.01 to 40%. An potassium fluoride compd. film is formed on the surfaces of the aluminum material. For example, oxidation prevention is inferior if the thickness of the film is below 0.001mum. The effect is not expected even if the film exceeding 0.5mum is formed. There is no need for unduly incorporating a getter material into a brazing filler metal in vacuum brazing. Vacuum brazing is possible even if an Al-Si brazing filler metal without contg. Mg at all or contg. just

34. 发明专利

JPH06285682A FLUX COMPOSITION AND ALUMINUM MATERIAL FOR BRAZING 失效
公开(公告)号：JPH06285682A
公开(公告)日：1994-10-11
申请号：JP10608093
申请日：1993-04-07
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , TAKENO SHINJI , MURAMATSU TOSHIKI , KAKIMOTO NOBUYUKI
IPC分类号： B23K35/363
摘要： PURPOSE:To obtain a flux composition without requiring newly an expensive equipment and an aluminum material for brazing applied with the flux composition by eliminating defective adhesion, the dispersion of coating quantity, the dropping out of coating flux, and various troubles, etc., caused thereby in the application of flux suspension to an aluminum material. CONSTITUTION:This aluminum material for brazing is obtained by applying a flux composition for brazing dispersed with 1 to 60weight% flux as dry weight into 1 to 20weight% water-soluble organic resin solution and drying them to apply with 0.01 to 20g/m as flux weight.

35. 发明专利

JPH04235247A ALUMINUM ALLOY SHEET FOR ZINC PHOSPHATE TREATMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH04235247A
公开(公告)日：1992-08-24
申请号：JP1392891
申请日：1991-01-11
申请人： SKY ALUMINIUM
发明人： KOBAYASHI TOSHIAKI , SAITO MASAJI , MATSUO MAMORU
IPC分类号： C22C21/02 , C22F1/00 , C22F1/04 , C22F1/043 , C22F1/05
摘要： PURPOSE:To provide an aluminum alloy sheet excellent in zinc phosphate treating property, having superior adhesive strength of coated film after coating, and also having superior filiform corrosion resistance and its production method. CONSTITUTION:The alloy has a composition consisting of 0.1-1.5% Mg, 0.3-2.5% Si, 0.001-0.05% P, and one or more kinds among =5 deg.C/sec.

36. 发明专利

JPH0424632B2 失效
公开(公告)号：JPH0424632B2
公开(公告)日：1992-04-27
申请号：JP22259384
申请日：1984-10-23
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , HIROMAE YOSHITAKA , OKUDA YUTAKA
IPC分类号： F28F1/12 , F28F1/32 , F28F19/04 , F28F21/00

37. 发明专利

JPH0441692A SURFACE-TREATED ALUMINUM PLATE PRECOATED WITH LUBRICANT 失效
公开(公告)号：JPH0441692A
公开(公告)日：1992-02-12
申请号：JP14576990
申请日：1990-06-04
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , KOBAYASHI TOSHIAKI , KOBAYASHI MICHIO , TOMONARI YUKIO
IPC分类号： B32B15/08 , C25D5/30 , C25D5/48
摘要： PURPOSE:To prevent the corrosion or the oxidation of the uppermost surface layer of a plating film formed on an Al plate even when the plate is exposed to air for a long period by providing a lubricant layer on the plating film. CONSTITUTION:A plating layer composed of a Zn layer or two layers of Zn and Ni is formed on an Al or Al-alloy plate, on which a lubricant layer is further formed. The lubricant used here has a preventive function against the corrosion and oxidation of the plating film as well as lubricating property for molding, and is preferably a fixed lubricant. The lubricant is applied by roll coating, dipping, etc., by the amt. preferably 0.1-50g/m . By applying the lubricant as precoating, the application of a lubricant just before the molding process in a factory where lots of metal particles float in air is not necessary, thereby, the sticking of metal particles can be avoided.

38. 发明专利

JPH0417980A ELECTRIC RESISTANCE SPOT WELDING METHOD FOR ALUMINUM ALLOY PLATES 失效
公开(公告)号：JPH0417980A
公开(公告)日：1992-01-22
申请号：JP12263890
申请日：1990-05-11
申请人： SKY ALUMINIUM
发明人： TAKENO SHINJI , KOBAYASHI MICHIO , SAITO MASAJI
IPC分类号： B23K11/18 , C23C22/56
摘要： PURPOSE:To obtain excellent continuous spot weldability and to remarkably improve welding workability by bringing plates on which different kind of metallic films are formed by plating on one side to come into contact with electrodes of the aluminum alloy plates into contact with each other via the nonplated surfaces and executing energizing between the above-mentioned electrodes to come into contact with the plated surfaces. CONSTITUTION:When only the plate surfaces 3 and 3' to come into contact with the electrodes 1 are plated to form the plated films 14 and 14', the plated films 14 and 14' instead of electrically nonconductive hard and brittle oxide films come into contact with the electrodes. These plated films 14 and 14' consist of electrically conductive metal except impurities of a part. Since electricity flows uniformly on the plated surface, there is no local heat generation on the plate surface, so deterioration in accordance with the local temperature rise of the electrode 1 interfaces is remarkably reduced. Meanwhile, aluminum oxide films 8 and 8' existing in the joined surfaces of the aluminum alloy plates facilitates the formation of a nugget 6 by the temperature rise on the joined surfaces.

39. 发明专利

JPH03146693A SURFACE-TREATED ALUMINUM SHEET HAVING SUPERIOR WELDABILITY AND TREATABILITY WITH ZINC PHOSPHATE 失效
公开(公告)号：JPH03146693A
公开(公告)日：1991-06-21
申请号：JP28229589
申请日：1989-10-30
申请人： SKY ALUMINIUM
发明人： KOBAYASHI MICHIO , KOBAYASHI TOSHIAKI , SAITO MASAJI , HIROMAE YOSHITAKA
IPC分类号： C25D3/12 , C25D3/22 , C25D5/30
摘要： PURPOSE:To obtain a surface-treated Al sheet having superior weldability and treatability with zinc phosphate by forming an Ni plating layer on the surface of an Al sheet and a Zn or Zn alloy plating layer on the Ni plating layer. CONSTITUTION:The surface of an Al sheet is degreased and chemically plated to form an Ni plating layer as a first layer. The pref. thickness of the Ni plating layer is 0.1- Ni. A Zn or Zn alloy plating layer as a second layer is then formed on the Ni plating layer by electroplating. The pref. thickness of the Zn or Zn alloy plating layer is 0.1- Zn or Zn alloy. A surface- treated Al sheet having superior treatability with zinc phosphate as well as superior continuous weldability in resistance spot welding, forming a coating film having satisfactory adhesion, ensuring sufficient corrosion resistance and suitable for an automobile body, etc., is obtd.

40. 发明专利

JPS6226497A FIN MATERIAL FOR HEAT EXCHANGER 失效
公开(公告)号：JPS6226497A
公开(公告)日：1987-02-04
申请号：JP16528985
申请日：1985-07-26
申请人： SKY ALUMINIUM
发明人： SAITO MASAJI , OKUDA YUTAKA , HIROMAE YOSHITAKA , TAKEMURA AKITAROU
IPC分类号： F28F19/02 , B32B15/08 , F28F1/12 , F28F1/32 , F28F21/00 , F28F21/08
摘要： PURPOSE:To obtain the fin material for heat exchanger, excellent corrosion resistance, hydrophilic nature, continuous molding and chemical resistance, by forming an anticorrosion film on the surface of an aluminum thin sheet and a coating layer, consisting of organic compound having hydrophilic nature and chrome compound, on the film. CONSTITUTION:When crosslinking reaction between the chrome compound and the hydrophilic base of organic compound, which constitute the coating layer formed on the upper layer of the anticorrosion film, is caused, the corrosion resistance of the material can be improved without sacrificing a desired hydrophilic nature. Chemical resistance may also be improved by polymerization. On the other hand, the chrome compound exists in the coating layer as part of the reaction, product, therefore, the property of continuous molding, which is essential for the organic compound, will never be deteriorated. Further, in case the anticorrosion film of the lower layer is treated into chromate treated film, the corrosion resistance can be increased by the interation such as crosslinking reaction resistance or the like between the chrome compound in the treated film and th eorganic compound in the upper layer whereby the anticorrosion characteristic, higher than the total sum of the effects by both layers, can be obtained.

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