发明授权
- 专利标题： Phosphating process with a copper-containing re-rinsing stage
- 专利标题（中）： 含铜再漂洗阶段的磷化工艺
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申请号： US930565申请日： 1997-09-29
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公开(公告)号： US6090224A公开(公告)日： 2000-07-18
- 发明人: Winfried Wichelhaus , Helmut Endres , Karl-Heinz Gottwald , Horst-Dieter Speckmann , Jan-Willem Brouwer
- 申请人： Winfried Wichelhaus , Helmut Endres , Karl-Heinz Gottwald , Horst-Dieter Speckmann , Jan-Willem Brouwer
- 申请人地址： DEX Duesseldorf
- 专利权人： Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人： Henkel Kommanditgesellschaft auf Aktien
- 当前专利权人地址： DEX Duesseldorf
- 优先权： DEX19511573 19950329
- 主分类号： C23C22/12
- IPC分类号： C23C22/12 ; C23C22/83
摘要：
A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution with a pH value of 3 to 7 which contains 0.001 to 10 g/l of one or more of the cations of Li, Cu and Ag.
公开/授权文献
- US4196900A Slide 公开/授权日：1980-04-08
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