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31. 发明专利

JPH04191397A PRODUCTION OF SURFACE-TREATED MATERIAL 失效
公开(公告)号：JPH04191397A
公开(公告)日：1992-07-09
申请号：JP32438390
申请日：1990-11-26
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C25D15/02
摘要： PURPOSE:To obtain a surface-treated material having superior adhesion to a coating film and superior corrosion resistance after coating by adding a specified org. polymer to a soln. contg. metal ions, allowing this soln. to stand for a long time and forming a complex. CONSTITUTION:A soln. contg. >=0.1mol/l metal ions such as Zn , Fe , Fe , Ni , Cr or Mn is prepd. An org. polymer modified by >=10mol% with amido functional groups or quaternized ammonium salt is prepd. and added to the soln. and this soln. is allowed to stand for >=20hr to obtain a plating bath contg. a formed complex. A steel sheet is electroplated with the plating bath.

32. 发明专利

JPH04173959A PRODUCTION OF METALLIC SHEET PLATED WITH AL ALLOY BY VAPOR DEPOSITION 失效
公开(公告)号：JPH04173959A
公开(公告)日：1992-06-22
申请号：JP30146390
申请日：1990-11-06
申请人： KOBE STEEL LTD
发明人： TERADA MAKOTO , KAWAFUKU JIYUNJI , KATO ATSUSHI , IKEDA TSUGUMOTO
IPC分类号： C23C14/14
摘要： PURPOSE:To form a uniform vapor-deposited layer of an Al alloy having no change in the compsn. in the thickness direction on the underside of travelling band steel by alternately arranging vessels for evaporating Al and vessels for evaporating an alloying element under the band steel and vapor-depositing Al and the alloying element on the underside of the band steel. CONSTITUTION:Vessels 2a, 2c for evaporating Al and vessels 2b, 2d for evaporating an alloying element such as Ti are alternately arranged under band steel 1 travelling in the direction of an arrow A and the vessels 2a, 2c and 2b, 2d are separetely heated to evaporate Al and Ti. Though Al and Ti are different from each other in vapor pressure, Al-Ti mixed vapor having a prescribed compsn. is generated by regulating heating conditions and a uniform vapor- deposited layer of an Al alloy having a constant mixing ratio between Al and Ti in the thickness direction is formed on the underside of the band steel 1.

33. 发明专利

JPH04103776A COATED AL OR AL ALLOY MATERIAL EXCELLENT IN CORROSION RESISTANCE 失效
公开(公告)号：JPH04103776A
公开(公告)日：1992-04-06
申请号：JP21934590
申请日：1990-08-20
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： B05D7/14 , B32B15/08 , C23C28/00
摘要： PURPOSE:To provide a coated Al(alloy) material excellent in resistance to blister of coated film as well as in resistance to film form corrosion products by plating the surface of Al(alloy) with pure Zn or pure Fe, converting all the pure Zn or pure Fe mentioned above into a phosphate film by means of phosphate treatment, and then applying coating to the above. CONSTITUTION:An Al(alloy) sheet is plated with pure Zn or pure Fe by a displacement plating method, etc., and then subjected to phosphate treatment by an immersion method, etc., by which all of respective plating metals mentioned above are converted into zinc phosphate and/or zinc-iron phosphate. A coating of alkyd melamine resin, etc., is applied to the surface of the resulting phosphated material, dried, and baked, by which the coated Al(alloy) material having superior corrosion resistance after coating can be prepared.

34. 发明专利

JPH0417680A ALUMINUM ALLOY MATERIAL WITH SURFACE HAVING SUPERIOR TREATABILITY WITH ZINC PHOSPHATE 失效
公开(公告)号：JPH0417680A
公开(公告)日：1992-01-22
申请号：JP12226190
申请日：1990-05-11
申请人： KOBE STEEL LTD
发明人： FUJIMOTO HIDEO , TSURUNO AKIHIRO , TOYOSE KIKURO , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C23C22/78
摘要： PURPOSE:To obtain an Al alloy material with a surface having superior treatability with zinc phosphate at a low cost by forming a specified amt. of a metal-oxide composite film consisting of Zn, Mn and Si oxide on the surface of an Al alloy. CONSTITUTION:A metal-oxide composite film consisting of metallic Zn, metallic Mn and Si oxide is formed on the surface of an Al alloy by 0.2-2g/m . The pref. Zn content of the composite film is 80-30wt.% and the film is preferably formed by substitution treatment by chemical treatment. A surface-treated Al alloy material having superior treatability with zinc phosphate, superior filiform corrosion resistance and adhesion of a coating film is obtd. Zinc phosphate having improved shape is deposited on the material by an increased amt. and the material is suitable for use as the panel material of an automobile and produces a significant effect especially in the case of an Al-Si-Mg alloy.

35. 发明专利

JPH03287799A PLATING MATERIAL EXCELLENT IN MOLD RELEASE PROPERTY 失效
公开(公告)号：JPH03287799A
公开(公告)日：1991-12-18
申请号：JP8888990
申请日：1990-04-02
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C25D15/02
摘要： PURPOSE:To obtain plating material which is excellent in mold release properties and also has wear resistance and is utilized for mold material by modifying one part of an organic polymer having a hydrophilic functional group by a hydrophobic functional group and dispersing or codepositing the modified organic polymer into Ni-P alloy plating layer. CONSTITUTION:After Fe-based material utilized as mold material is degreased, a plating layer which contains 0.1-30wt.% P and consists of the balance Ni and inevitable impurities is formed by an electroplating. In this ease, an organic polymer having an acrylic acid-based hydrophilic functional group is incorporated in the plating liquid at >=0.05% expressed in terms of C. Moreover the a polymer of at least 10mol% is modified by a hydrophobic functional group by a proper means. A plating metal component and the polymer are made copresent. Metal and the organic polymer are codeposited on the plating layer by an electrodeposition and codeposition method by utilizing this bath. Thereby the plating material is obtained which is excellent in mold release properties and has wear resistance and is utilized for mold material. This material is preferably utilized as a die for extrusion and a nozzle for injection molding.

36. 发明专利

JPH03271361A STEEL MATERIAL FOR AUTOMOBILE EXHAUST SYSTEM 失效
公开(公告)号：JPH03271361A
公开(公告)日：1991-12-03
申请号：JP7024190
申请日：1990-03-20
申请人： KOBE STEEL LTD
发明人： TOYAMA MASAO , KAWAFUKU JIYUNJI , KATO ATSUSHI , IKEDA TSUGUMOTO , SAKAI HIROHIKO
IPC分类号： C23C14/14 , C23C14/16 , C23C30/00
摘要： PURPOSE:To produce a steel material for automobile exhaust system excellent in corrosion resistance by applying vapor deposition Al-Ti alloy plating of specific thickness to the surface of a Cr-containing steel containing specific percentages of Cr and controlling Ti content in the plating layer by a specific inequality. CONSTITUTION:Vapor deposition Al-Ti alloy plating is applied to the surface of a Cr-containing steel containing 1-20wt.% Cr so that coating weight is regulated to a value between 10g/m and . At this time, Ti content in the this plating layer is regulated so that it satisfies an inequality 1

37. 发明专利

JPH03267364A SURFACE TREATED STEEL MATERIAL EXCELLENT IN WEATHERABILITY 失效
公开(公告)号：JPH03267364A
公开(公告)日：1991-11-28
申请号：JP6906590
申请日：1990-03-19
申请人： KOBE STEEL LTD
发明人： KAWAFUKU JIYUNJI , KATO ATSUSHI , IKEDA TSUGUMOTO
IPC分类号： C23C14/14 , C23C14/16 , C23C30/00
摘要： PURPOSE:To produce a surface treated material excellent in weatherability by providing a Cu vapor deposition plating layer of specific thickness to the surface of a chromium steel containing specific amounts of Cr. CONSTITUTION:A Cu vapor deposition plating layer of >=0.1mum thickness is formed on the surface of a chromium steel containing 1-20wt.% Cr. By this method, potential difference between the Cu plating layer and the steel material can be reduced and also the number of pinholes forming in the Cu plating layer can remarkably be reduced, by which the surface treated material excellent in weatherability, ornamental property, attractive appearance, etc., can be obtained.

38. 发明专利

JPH03138398A GALVANIZED MATERIAL HAVING EXCELLENT ADHESION OF COATED FILM AND WORKABILITY AND ITS PRODUCTION 失效
公开(公告)号：JPH03138398A
公开(公告)日：1991-06-12
申请号：JP23411189
申请日：1989-09-08
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C25D3/22 , C25D5/26 , C25D15/02
摘要： PURPOSE:To apply galvanizing having excellent workability and adhesion of coated films on a steel sheet by forming the plating layers of >=2 layers of laminated galvanizing layers contg. org. polymers and controlling the contents of the org. polymers in the respective plating layers at the time of applying the galvanizing having excellent corrosion resistance on the steel sheet. CONSTITUTION:A Zn or Zn alloy plating liquid contg. at least 0.5 to 2.0mol/l Zn ion and 0.001 to 10wt.% hydrophilic org. polymer, such as acrylamide polymer, is used as the plating liquid and the steel sheet is successively passed through plural plating liquid cells contg. this plating liquid and is electroplated while the current density is gradually increased in a 0.1 to 500A/dm range from the upstream side to the downstream side of the plating cell group at the time of applying the galvanizing having the excellent corrosion resistance on the surface of the steel sheet. The plural galvanizing layers in which the contents of the org. polymers increase gradually from the side in contact with the steel sheet toward the upper part are formed. The galvanized steel sheet which has the excellent workability at the time of press forming and has the excellent adhesion of the coated films even if the steel sheet is not subjected to a pretreatment prior to painting is thus produced.

39. 发明专利

JPH0397886A PRODUCTION OF GALVANIZED MATERIAL HAVING SUPERIOR WORKABILITY 失效
公开(公告)号：JPH0397886A
公开(公告)日：1991-04-23
申请号：JP23411389
申请日：1989-09-08
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C25D3/22
摘要： PURPOSE:To produce a galvanized steel material having superior workability such as press formability and high corrosion resistance by adding a specified water soluble polymer to a galvanizing bath and supplying electric current having rectangular wave-form when the surface of a steel material is galvanized. CONSTITUTION:When the surface of a metallic material such as a steel sheet is galvanized so as to improve the corrosion resistance, a water soluble anionic polymer having 1,000-1,000,000mol.wt. obtd. by subjecting polyacrylamide as a base polymer to anionic modification with carboxyl groups is added to a galvanizing bath by 0.1-100g/l and electric current having rectangular wave-form is supplied. The polymer is sufficiently incorporated into a Zn layer and a galvanized steel sheet having superior workability such as press formability and fine appearance is obtd.

40. 发明专利

JPH0353082A ZN PLATED MATERIAL HAVING SUPERIOR PRESS FORMABILITY 失效
公开(公告)号：JPH0353082A
公开(公告)日：1991-03-07
申请号：JP18632089
申请日：1989-07-18
申请人： KOBE STEEL LTD
发明人： SATO HIROSHI , IKEDA TSUGUMOTO , HISAMOTO ATSUSHI , YAMAMURA NAGISA
IPC分类号： C23C28/02
摘要： PURPOSE:To simultaneously improve corrosion resistance and press formability by laminating Zn-based plating layers different from each other in hardness on the surface of a base material and making the hardness of the uppermost layer high. CONSTITUTION:Zn-based plating layers are formed on the surface of a metallic base material. The Vickers hardness Hv of the lowest layer is regulated to

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