发明申请
- 专利标题: Surface-treated steel sheet and method for producing same
- 专利标题(中): 表面处理钢板及其制造方法
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申请号: US10565362申请日: 2004-07-28
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公开(公告)号: US20060182988A1公开(公告)日: 2006-08-17
- 发明人: Takafumi Yamaji , Akira Matsuzaki , Kazuhisa Okai , Keiji Yoshida , Masaaki Yamashita , Yuichi Fukeshima , Toshiyuki Okuma
- 申请人: Takafumi Yamaji , Akira Matsuzaki , Kazuhisa Okai , Keiji Yoshida , Masaaki Yamashita , Yuichi Fukeshima , Toshiyuki Okuma
- 优先权: JP2003-203000 20030729; JP2003-296801 20030820; JP2003-296802 20030820
- 国际申请: PCT/JP04/11128 WO 20040728
- 主分类号: C25D11/02
- IPC分类号: C25D11/02 ; B05D3/02 ; C23C2/12 ; C25D5/10
摘要:
The present invention provides a surface treated steel sheet including a steel sheet; a plating layer containing at least one metal selected from the group consisting of zinc and aluminum on a surface of the steel sheet; and a film on the plating layer, the film containing at least one metal selected from the group consisting of Al, Mg, and Zn, a tetravalent vanadium compound, and a phosphoric acid group. This surface treated steel sheet exhibits excellent corrosion resistance and excellent surface appearance without containing hazardous substances, such as hexavalent chromium, in the film.
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