发明名称 |
Composition and process for the treatment of metal surfaces |
摘要 |
A method of forming a conversion layer on a metallic surface and a composition usable in the method are provided. The composition is an aqueous solution comprising a source of tungstate ions and a soluble material comprising zirconium. The method provides a conversion coating on a surface that can then be painted or otherwise treated. The conversion coatings of the present invention are minimally affected by heating and/or baking, unlike chromate conversion coatings of the prior art.
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申请公布号 |
US2003172998(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20020099769 |
申请日期 |
2002.03.14 |
申请人 |
WOJCIK GERALD;GIRARD JUSTIN;BERRY ROBERT;BAUER RICHARD |
发明人 |
WOJCIK GERALD;GIRARD JUSTIN;BERRY ROBERT;BAUER RICHARD |
分类号 |
C23C22/40;C23C22/42;C23C22/44;(IPC1-7):C23C22/40 |
主分类号 |
C23C22/40 |
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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