公开(公告)号：US4875984A

公开(公告)日：1989-10-24

申请号：US309683

申请日：1989-02-10

申请人： Hiroki Iwasa ,  Toyofumi Watanabe ,  Hirohide Furuya

发明人： Hiroki Iwasa ,  Toyofumi Watanabe ,  Hirohide Furuya

IPC分类号： C25D11/38

CPC分类号： C25D11/38

摘要： A method for manufacturing an electrolytically chromated steel sheet, comprising the steps of: subjecting a steel sheet to an anodic electrolytic treatment with a quantity of electricity of from 0.3 to 30 coulomb/dm.sup.2 in an acidic electrolyte containing at least one of chromic anhydride, chromate and bichromate, to form a hydrated chromium oxide film having numerous holes and numerous thin portions over the entire area of at least one surface of the steel sheet; and then subjecting the anodically treated steel sheet to a cathodic electrolytic chromate treatment in an acidic electrolytic chromating solution to form on the at least one surface of the steel sheet a chromate film comprising a metallic chromium layer as a lower layer having thereon numerous granular projections, and a hydrated chromium oxide layer as an upper layer. The electrolytically chromated steel sheet manufactured in accordance with the method of the present invention has excellent secondary paint adhesion and weldability, and has a satisfactory surface hue.

公开(公告)号：US6126759A

公开(公告)日：2000-10-03

申请号：US913642

申请日：1997-10-09

申请人： Yoshihiro Hosoya ,  Katsumi Tanikawa ,  Katsumi Kojima ,  Takashi Awaya ,  Hirohide Furuya

发明人： Yoshihiro Hosoya ,  Katsumi Tanikawa ,  Katsumi Kojima ,  Takashi Awaya ,  Hirohide Furuya

IPC分类号： C22C38/00 ,  C22C38/06 ,  H01M2/02

CPC分类号： H01M2/027 ,  C22C38/00 ,  C22C38/004 ,  C22C38/06 ,  H01M2/0272 ,  H01M2/0275 ,  Y10T428/12937 ,  Y10T428/12958

摘要： This invention is to provide a steel sheet for 2-piece battery cans, which has excellent formability in DI molding to give thin-walled, side body parts, and, more preferably, a steel sheet for 2-piece battery cans, which, after having been formed into cans, has high mechanical strength and excellent anti-secondary work embrittlement with excellent corrosion resistance. The steel sheet for 2-piece battery cans of the invention contains S and O (where O is the total oxygen content) while satisfying the conditions that S is from 0.005 to 0.015 wt. %, preferably from 0.005 to 0.012 wt. %, that 0 is from 0 to 0.0025 wt. % and that [S/10+O].ltoreq.0.0035 wt. %, preferably [S/10 +0].ltoreq.0.0030 wt. %. More preferably, the steel sheet contains B of from 0.0005 to 0.0015 wt. % while satisfying 0.2.ltoreq.B/N.ltoreq.1.0, or contains either one or both of Cr of being from 0.03 to 0.10 wt. % and Ni of being from 0.01 to 0.10 wt. %, the total of the two being not larger than 0.10 wt. %. The both surfaces of the steel sheet may be plated with Ni or an Fe--Ni alloy in order to ensure more excellent corrosion resistance of the steel sheet.

摘要翻译： PCT No.PCT / JP97 / 00327 Sec。 371 1997年10月9日第 102（e）1997年10月9日PCT PCT 1997年2月7日提交PCT公布。 公开号WO97 / 29217 日本特开1997年8月14日本发明是提供一种用于2片电池罐的钢板，其在DI成型中具有优异的成形性，得到薄壁侧体部件，更优选为2片电池 罐成型后，具有高机械强度和优异的抗二次加工脆性，耐腐蚀性优异。 本发明的2片电池罐用钢板含有S和O（O为总氧含量），同时满足S为0.005〜0.015重量％的条件。 ％，优选0.005-0.012wt。 ％，0为0〜0.0025wt。 ％，[S / 10 + O] = 0.0035wt。 ％，优选[S / 10 + 0] = 0.0030wt。 ％。 更优选钢板含有0.0005〜0.0015wt。 ％，同时满足0.2≤B/N≤1.0，或者包含0.03至0.10重量％的Cr之一或两者。 ％和Ni为0.01〜0.10wt。 ％，两者的总和不大于0.10wt。 ％。 为了确保钢板的更优异的耐腐蚀性，钢板的两面可镀Ni或Fe-Ni合金。

公开(公告)号：US5436058A

公开(公告)日：1995-07-25

申请号：US127774

申请日：1993-09-27

申请人： Hiroyuki Kato ,  Hirohide Furuya ,  Takaaki Kondo ,  Naoyuki Ooniwa

发明人： Hiroyuki Kato ,  Hirohide Furuya ,  Takaaki Kondo ,  Naoyuki Ooniwa

IPC分类号： B32B15/08 ,  B32B15/09 ,  B65D8/04 ,  B65D8/18

CPC分类号： B32B15/08 ,  Y10S220/906 ,  Y10T428/1355 ,  Y10T428/24793 ,  Y10T428/24975 ,  Y10T428/27 ,  Y10T428/31515 ,  Y10T428/31522 ,  Y10T428/31786

摘要： A laminated steel sheet for cans comprises: a steel sheet; a metallic chromium plated layer with a 5 to 150 mg/m.sup.2 coating weight formed on the sheet; a hydrated chromium oxide layer with a 3 to 15 mg/m.sup.2 coating weight in terms of chromium formed on the metallic chromium layer; a bonding layer formed on the hydrated chromium oxide layer; and a biaxially oriented polyethylene terephthalate resin film formed on the bonding layer with a strip-shaped margin left for welding, the bonding layer being obtained by curing an adhesive having bisphenol A epoxy resin which has 15,000 to 30,000 number average molecular weight and is from 70 to 90 wt. % of said bonding layer with the remainder being resol phenol resin which has a base of bisphenol A. Other related laminated sheets are also provided.

摘要翻译： 一种罐用层叠钢板，包括：钢板; 在片材上形成具有5至150mg / m 2涂层重量的金属铬镀层; 在金属铬层上形成的以铬计为3〜15mg / m2的水合氧化铬层; 形成在所述水合氧化铬层上的结合层; 以及形成在接合层上的双轴取向聚对苯二甲酸乙二醇酯树脂膜，其具有用于焊接的带状余量，所述粘合层通过固化具有15,000至30,000数均分子量且为70的双酚A环氧树脂的粘合剂而获得 至90重量％ 所述粘合层的％，其余为具有双酚A基料的甲阶酚醛树脂酚树脂。还提供了其它相关的层压片材。

公开(公告)号：US4898649A

公开(公告)日：1990-02-06

申请号：US309774

申请日：1989-02-10

申请人： Hiroki Iwasa ,  Toyofumi Watanabe ,  Hirohide Furuya

发明人： Hiroki Iwasa ,  Toyofumi Watanabe ,  Hirohide Furuya

IPC分类号： C25D11/38

CPC分类号： C25D11/38 ,  C25D9/06 ,  C25D9/10

摘要： A method for manufacturing an electrolytically chromated steel sheet, comprising the steps of: subjecting a steel sheet intermittently to a plurality of runs of cathodic electrolytic chromate treatment in an acidic electrolytic chromating solution. At least one of these plurality of runs of cathodic electrolytic chromate treatment is carried out at a high electric current density within the range of from 90 to 200 A/dm.sup.2, to form on at least one surface of the steel sheet a chromating film comprising a metallic chromium layer as a lower layer having numerous granular projections over the entire surface thereof, and a hydrated chromium oxide layer as an upper layer. The electrolytically chromated steel sheet manufactured in accordance with the method of the present invention is excellent in a secondary paint adhesion and a weldability, and has a satisfactory surface hue.