发明授权
- 专利标题： No-rinse phosphating process
- 专利标题（中）： 无漂洗磷化工艺
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申请号： US809606申请日： 1997-03-24
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公开(公告)号： US5976272A公开(公告)日： 1999-11-02
- 发明人: Reinhard Seidel , Bernd Mayer , Melanie Joppen , Melitta Krause , Joerg Riesop
- 申请人： Reinhard Seidel , Bernd Mayer , Melanie Joppen , Melitta Krause , Joerg Riesop
- 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： DEX4433946 19940923
- 主分类号： C23C22/12
- IPC分类号： C23C22/12 ; C23C22/18 ; C23C22/36 ; C23C22/73 ; C23C22/07
摘要：
A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of manganese ions and 50 to 300 g/l of phosphate ions. The solution has a pH value of 1 to 3.6, a free acid content of 0 to 100 points, a total acid content of 40 to 400 points and a ratio of free acid to total acid of 1:4 to 1:20.
公开/授权文献
- US4734913A Unitary solid-state laser 公开/授权日：1988-03-29
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