发明名称 |
Hexavalent chromium-free sealing method applicable after sulfuric anodization of aluminum alloys, a sealing solution used in said method, and an article treated using said method |
摘要 |
The invention concerns a sealing method for producing a film of oxide having good saline corrosion resistance properties on a metal substrate. Said method comprises steps consisting of: providing a buffered sealing solution comprising at least one simple cobalt II salt and at least one simple lithium III salt; and bringing said metal substrate having a previously oxidized surface into contact with said sealing solution for a period sufficient to form a mixed cobalt/lithium oxide film. More particularly, this method is applicable to a metal substrate produced from aluminum or from aluminum alloy anodized in a sulfuric medium.
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申请公布号 |
US2005121115(A1) |
申请公布日期 |
2005.06.09 |
申请号 |
US20040000058 |
申请日期 |
2004.12.01 |
申请人 |
SNECMA MOTEURS |
发明人 |
RUIMI MICHEL;OBERLAENDER GUILLAUME;GONZALEZ VALERIE |
分类号 |
C25D11/18;C25D11/24;(IPC1-7):C23C22/48 |
主分类号 |
C25D11/18 |
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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