发明授权
- 专利标题： Method for chromating treatment of zinc coated steel
- 专利标题（中）： 镀锌钢板的铬化处理方法
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申请号： US39155申请日： 1993-04-07
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公开(公告)号： US5366567A公开(公告)日： 1994-11-22
- 发明人: Takao Ogino , Arata Suda , Takayuki Aoki , Mitsuyuki Koga
- 申请人： Takao Ogino , Arata Suda , Takayuki Aoki , Mitsuyuki Koga
- 申请人地址： PA Plymouth Meeting
- 专利权人： Henkel Corporation
- 当前专利权人： Henkel Corporation
- 当前专利权人地址： PA Plymouth Meeting
- 优先权： JPX2-270131 19901008
- 主分类号： C23C22/33
- IPC分类号： C23C22/33 ; C23C28/00 ; C23C22/37
摘要：
A chromating composition including hexavalent and trivalent chromium, phosphate ions, silica, and a silane coupling agent and with ratios among its components within certain specified ranges produces a protective layer on the surface of zinc coated steel treated with the composition that has an excellent alkali resistance, corrosion resistance, coatability, and welding tolerance.
公开/授权文献
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