发明名称 |
WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS |
摘要 |
A chromium-free water-based surface treatment liquid which contains from 0.01 to 50 g/l of a total of dissolved manganic acid, permanganic acid, and salt(s) thereof and from 0.01 to 20 g/l of a total of dissolved titanium compounds and has a pH of from 1.0 to 6.0 reacts rapidly with aluminum and aluminum alloy surfaces to deposit thereon a protective coating that does not contain hexavalent chromium and has excellent corrosion resistance and paint film holding properties.
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申请公布号 |
CA2291140(A1) |
申请公布日期 |
1998.11.26 |
申请号 |
CA19982291140 |
申请日期 |
1998.05.21 |
申请人 |
HENKEL CORPORATION |
发明人 |
MAEDA, KAZUHIRO;KAWAGUCHI, MOTOKI;NAKADA, KAZUYA |
分类号 |
C23C22/34;C23C22/56;(IPC1-7):B05D1/18;C04B9/02;C23C22/48 |
主分类号 |
C23C22/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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