发明名称 |
HYDROXYSULFATE SURFACE TREATMENT |
摘要 |
The aim of the invention is the use of an sulphate ions-containing solution for treating the surface of a galvanised steel sheet in order to reduce a coating degradation during the chapping thereof and to improve the temporary protecting said sheet against corrosion. A method for lubricating said coate d sheet is also disclosed.
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申请公布号 |
CA2551492(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
CA20042551492 |
申请日期 |
2004.12.14 |
申请人 |
USINOR |
发明人 |
PETITJEAN, JACQUES;BELLO, ALAIN;ARNOUX, CLAUDE;JACQUESON, ERIC |
分类号 |
C23C22/68;B21D22/20;C23C2/26;C23C22/53;C25D9/06;C25D11/34 |
主分类号 |
C23C22/68 |
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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