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51. 发明专利

JPH1192960A ORGANIC COATED STEEL SHEET FOR CAR FUEL VESSEL EXCELLENT IN CORROSION RESISTANCE AND JOINABILITY 失效
公开(公告)号：JPH1192960A
公开(公告)日：1999-04-06
申请号：JP25224997
申请日：1997-09-17
申请人： NIPPON STEEL CORP
发明人： ISAKI TERUAKI , FUDA MASAHIRO , NISHIDA HIROSHI
IPC分类号： B05D7/14 , B32B15/08 , C23C22/30 , C23C28/00 , C25D11/38
摘要： PROBLEM TO BE SOLVED: To improve the corrosion resistance, brazing property and resistance wealability by forming alloy composed of one or more kinds of metallic elements such as Zn or Zn and Ni, etc., on both surfaces of a steel sheet, and a chromate film layer on the using surface at the inner surface side of a vessel and further, and organic resin film containing metallic powder on this upper layer by specific quantity to each layer. SOLUTION: Firstly, the alloy composed of one or more kinds of Zn or Zn and Ni, Sn, Al, Fe, Co, Mg, Mn is formed so that the coating quantity becomes 20-60 g/m . On this surface, the chromate film layer is formed so as to become 10-100 mg/m expressed in terms of Cr. Further, on the upper layer, the organic resin film composed of 20-70 wt.% one or more kinds of powder of Zn, Al, Ni, Mg, Sn, stainless steel or these alloys and the balance one or more kinds of epoxy base, phenol base, polyester base, polyurethane base, polyethylene base, phthalic acid base, fluorine base and silicone base is coated in 2-20 μm thickness.

52. 发明专利

JPH10176287A RUST PREVENTIVE STEEL SHEET FOR FUEL TANK EXCELLENT IN CORROSION RESISTANCE AFTER FORMING 失效
公开(公告)号：JPH10176287A
公开(公告)日：1998-06-30
申请号：JP33842296
申请日：1996-12-18
申请人： NIPPON STEEL CORP
发明人： MAKI JUN , FUDA MASAHIRO , ISAKI TERUAKI
IPC分类号： B32B15/08 , C22C38/00 , C22C38/28 , C22C38/54 , C23C2/12 , C23C28/00
摘要： PROBLEM TO BE SOLVED: To improve the press workability of a steel sheet without using Pb and to secure its corrosion resistance to organic matter after forming by regulating the difference in dipping potentials between a plating original sheet and an Al-Fe-Si series intermetallic compound layer on its surface in the case of being immersed in an aq. soln. of fomic acid to specified value or below. SOLUTION: A plating layer is composed of Al-Si series, and the content of Si is regulated to 3 to 13%. In this way, an exceedingly hard and brittle alloy layer formed by hot dip Al plating is thinned and works advantageously for its workability. The potential difference between the alloy layer and plating original sheet is regulated to

53. 发明专利

JPH093658A RUST PREVENTIVE STEEL PLATE FOR FUEL TANK, EXCELLENT IN WORKABILITY, CORROSION RESISTANCE, AND WELDABILITY 失效
公开(公告)号：JPH093658A
公开(公告)日：1997-01-07
申请号：JP15284695
申请日：1995-06-20
申请人： NIPPON STEEL CORP
发明人： OYAGI YASHICHI , OMORI TAKAYUKI , FUDA MASAHIRO , OKADA NOBUYOSHI
IPC分类号： B32B15/082 , B32B15/08 , B32B15/09 , B32B27/20 , C23C2/08 , C23C28/00
摘要： PURPOSE: To provide a rust preventive steel plate for fuel tank, combining excellent corrosion resistance, workability, and weldability, by applying, as an after treatment film, an organic - inorganic combined coating having respectively specified composition and coating weight, at the time of hot dip tin - zinc alloy coating. CONSTITUTION: This steel plate is (1) a rust preventive steel plate for fuel tank, combining excellent workability, corrosion resistance, and weldability, prepared by forming, on the surface of the steel plate, an alloy layer of 0.05 to 1.5μm thickness having a composition >=80% of which (Fe+Sn) comprises and a metallic coating composed of a tin-base alloy of 2.0 to 15.0μm thickness having a composition >=80% of which tin comprises and then forming, on the above metallic coating, an organic - inorganic combined coating containing one or more elements among Cr, Si, P, and Mn and having (0.01 to 2.0)g/m coating weight. Further, this steel plate is (2) a rust preventive steel plate for fuel tank, combining excellent workability, corrosion resistance, and weldability, in which, in addition to the characteristics of (1), the tin-base alloy consists of >=80% tin and the balance Zn, Mn, Cd, Al, Cr, Ti, and Mg.

54. 发明专利

JPH08337884A WHITE CHROMATE TREATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND HEAT RESISTANCE 失效
公开(公告)号：JPH08337884A
公开(公告)日：1996-12-24
申请号：JP14276495
申请日：1995-06-09
申请人： NIPPON STEEL CORP
发明人： ISAKI TERUAKI , FUDA MASAHIRO
IPC分类号： C23C22/20 , C23C22/33 , C23C28/00
摘要： PURPOSE: To prepare a chromating solution excelling the heat resistance, lubricity and corrosion resistance of an aluminum or aluminum-zinc alloy plated steel sheet and to produce the chromate treated steel sheet. CONSTITUTION: The aluminum or aluminum-zinc alloy plated steel sheet excellent in heat resistance, lubricity and corrosion resistance is obtained by applying the chromating solution, which contains 7.5-100g/l reduced chromic acid expressed in terms of chromic anhydride and having the composition ratio of Cr /Cr of 3/7-7/3, a phosphate compound of 0.5-3.0 in the weight ratio to the reduced chromic acid expressed in terms of chromic anhydride, a silica and/or silicate colloidal silica of 0.5-5.0 in the weight ratio to the reduced chromic acid expressed in terms of chromic anhydride, 10-20g/l at least one kind selected from phosphonic acid or the salt compounds, 1.0-20g/l lubricant excellent in water solubility or water dispersibility and/or 1.0-30g/l water soluble or water dispersible organic polymer, on the surface of the aluminum or aluminum-zinc alloy plated steel sheet and drying under heating to form a chromate coated film.

55. 发明专利

JPH08311691A PRODUCTION OF BLACKENED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE 失效
公开(公告)号：JPH08311691A
公开(公告)日：1996-11-26
申请号：JP11946295
申请日：1995-05-18
申请人： NIPPON STEEL CORP
发明人： ISAKI TERUAKI , FUDA MASAHIRO , KOYAMA ISAAKI
IPC分类号： C25D11/00 , C25D9/10 , C25D15/02
摘要： PURPOSE: To form a blackened layer excellent in adhesion and corrosion resistance (to complete the forming treatment by one stage). CONSTITUTION: A cathodic electrolysis is executed in a soln. in which hardly soluble chromate particulates and nitric acid ion or an amine-based org. matter are added to a zinc electroplating bath generally being used. Or moreover, nickel ion or chromium ion is further added sometimes. In this way, the black layer not inferior to the blackness of the blackened steel sheet obtained by conventional blackening technique and excellent in adhesion and resistance to rust is obtained. The adhesion of the black layer is improved further by adding further nickel ion or chromium ion.

56. 发明专利

JPH08269734A RUST PREVENTIVE STEEL SHEET FOR FUEL TANK 失效
公开(公告)号：JPH08269734A
公开(公告)日：1996-10-15
申请号：JP7025995
申请日：1995-03-29
申请人： NIPPON STEEL CORP
发明人： OYAGI YASHICHI , OMORI TAKAYUKI , FUDA MASAHIRO , SAWADA KEN
IPC分类号： C23C2/06 , C23C2/08 , C23C28/00 , C23C28/02 , C23C30/00
摘要： PURPOSE: To provide a rust preventive steel sheet for fuel tank excellent in various characteristics as a fuel tank material. CONSTITUTION: An alloy layer containing >=1 kids of Ni, Fe, Sn, Zn is formed with the thickness of zinc crystal >250μm in major diameter and having a thickness of 4-50μm per one surface is formed thereon. A steel sheet containing Ti or Nb and a steel sheet further containing B as the steel sheet components are preferably used and 0.2-25mg/m expressed in terms of Cr per one surface of the steel sheet is preferably applied thereon.

57. 发明专利

JPH08269662A PRODUCTION OF ZINC-TIN ALLOY COATED STEEL SHEET 失效
公开(公告)号：JPH08269662A
公开(公告)日：1996-10-15
申请号：JP7314095
申请日：1995-03-30
申请人： NIPPON STEEL CORP
发明人： OYAGI YASHICHI , OMORI TAKAYUKI , FUDA MASAHIRO , OKADA NOBUYOSHI
IPC分类号： C23C2/02 , C23C2/06 , C23C2/08 , C23C28/04
摘要： PURPOSE: To provide a hot dipping method for producing an inexpensive zinc-tin alloy coated steel sheet having excellent properties. CONSTITUTION: This zinc-tin alloy coated steel sheet can be produced by degreasing and pickling an annealed steel sheet, subjecting the steel sheet to Ni or Ni-Fe precoating by the amount of (0.1 to 3.0)g/m by Ni content per side, applying a hydrochloric-acid-containing flux by 2-45wt.% expressed in terms of chlorine, and then plating the steel sheet by the use of a bath consisting of 60-98wt.% tin and the balance zinc with inevitable impurities at a bath temp., 20-300 deg.C higher than the melting point of the alloy. Moreover, in addition to the regulation of coating weight, this material is cooled at >=20 deg.C/sec cooling rate when Zn content is higher than 8.8wt.%.

58. 发明专利

JPH0841651A COATED ALUMINUM PLATED STEEL PLATE EXCELLENT IN LUBRICITY AND HEAT RESISTANCE 失效
公开(公告)号：JPH0841651A
公开(公告)日：1996-02-13
申请号：JP17435494
申请日：1994-07-26
申请人： NIPPON STEEL CORP
发明人： FUDA MASAHIRO , ISAKI TERUAKI , OYAGI YASHICHI
IPC分类号： B32B15/08 , C23C2/06 , C23C2/12 , C23C22/24 , C23C28/00
摘要： PURPOSE:To produce a resin coated aluminum plated steel plate capable of press working without lubricant and usable for heat resistant use after working. CONSTITUTION:The steel plate is produced by subjecting a plated layer of an aluminum plated steel plate or a zinc-aluminum alloy plated steel plate to chromate treatment and forming a resin coating film, which is made by incorporating 0.6-2wt.% carnauba wax in a resin system obtained by incorporating 10-30wt.% isocyanate resin or 10-30wt.% phenol resin as a curing agent in an acrylic grafted epoxy resin by 0.5-5g/m coating weight thereon. As a result, the coated steel plate capable of press working without using lubricant and usable in a heated atmosphere up to 200 deg.C is obtained.

59. 发明专利

JPH07180068A RESIN CHROMATE TREATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND ADHESION OF COATING MATERIAL 失效
公开(公告)号：JPH07180068A
公开(公告)日：1995-07-18
申请号：JP32502493
申请日：1993-12-22
申请人： NIPPON STEEL CORP
发明人： ISAKI TERUAKI , YOSHIDA MAKOTO , FUDA MASAHIRO
IPC分类号： B05D7/14 , B32B15/08 , C23C28/00
摘要： PURPOSE:To produce a resin type chromate film treated steel sheet excellent in corrosion resistance and the adhesion of coating material. CONSTITUTION:An organic resin film contg. hardly soluble chromate fine grains is formed on one side or both sides of a plated steel sheet. As the hardly soluble chromate, XCrO4 (X=Zn, Sr, Ba and Pb) is used, and as the organic resin, any of water-based or solvent-based acrylic resin, epoxy resin, urethane resin may be used. Thus, the chromate treated steel sheet in which corrosion resistance and the adhesion of coating material are well-balanced can be obtd. Furthermore, the treated steel sheet small in the elution of chromate, free from contamination of a treating soln. in reference treating stages and furthermore improved in the adhesion of coating material can be produced.

60. 发明专利

JP2012121020A Chromate-free colored coated metal plate and aqueous coloring composition 有权
标题翻译：无铬无色涂层金属板和水性着色组合物
公开(公告)号：JP2012121020A
公开(公告)日：2012-06-28
申请号：JP2011251829
申请日：2011-11-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORISHITA ATSUSHI , HAYASHI KIMITAKA , FUDA MASAHIRO
IPC分类号： B05D7/14 , B32B15/08 , C23C22/48
摘要： PROBLEM TO BE SOLVED: To provide a chromate-free colored metal plate which contains no hexavalent chromium having high environmental burden, extremely excels in a designability (colorability and concealment, including a processed part), moisture resistance, corrosion resistance, processability, scratch resistance, and chemical resistances, etc., and is inexpensive.SOLUTION: The chromate-free colored coated metal plate has a colored coated film (α) formed by applying, on at least one surface of a metal plate, an aqueous coloring composition (X) that contains organic resin particles (A) whose average particle size is 10-100 nm, a color pigment (B), and spherical silica particles (C) whose average particle size is 5-50 nm, and drying it by heating, wherein the thickness of the colored coated film (α) is 2-10 μm.
摘要翻译：要解决的问题：为了提供不含不具有高环境负荷的六价铬的不含铬酸盐的有色金属板，在设计性（可着色性和隐蔽性，包括加工部分），防潮性，耐腐蚀性，加工性方面极其优异，耐刮擦性，耐化学性等优点。解决方案：不含铬酸盐的有色涂层金属板具有通过在金属板的至少一个表面上涂覆含有有机树脂颗粒（A）的水性着色组合物（X）而形成的着色涂膜（α）平均粒径为10〜100nm，着色颜料（B）和平均粒径为5-50nm的球状二氧化硅粒子（C），通过加热进行干燥，其中着色涂膜（α ）为2-10μm。版权所有（C）2012，JPO＆INPIT

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