发明授权
- 专利标题： Surface-treated steel sheet and method for manufacturing the 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： US07842400B2公开(公告)日： 2010-11-30
- 发明人: Takafumi Yamaji , Akira Matsuzaki , Kazuhisa Okai , Keiji Yoshida , Masaaki Yamashita , Yuichi Fukushima , Toshiyuki Okuma
- 申请人： Takafumi Yamaji , Reiko Yamaji, legal representative , Akira Matsuzaki , Kazuhisa Okai , Keiji Yoshida , Masaaki Yamashita , Yuichi Fukushima , Toshiyuki Okuma
- 申请人地址： JP
- 专利权人： JFE Steel Corporation
- 当前专利权人： JFE Steel Corporation
- 当前专利权人地址： JP
- 代理机构： DLA Piper LLP (US)
- 优先权： JP2003-203000 20030729; JP2003-296801 20030820; JP2003-296802 20030820
- 国际申请： PCT/JP2004/011128 WO 20040728
- 国际公布： WO2005/010235 WO 20050203
- 主分类号： B32B15/04
- IPC分类号： B32B15/04 ; B32B15/08 ; B32B15/18 ; B32B15/20
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.