发明名称 |
A process for treating metal surface. |
摘要 |
<p>@ In the process of chromate treatment, a metallic material which has been immersed in a chromate treatment solution is allowed to stand in an atmosphere substantially free from any ingredient of the chromate treatment solution for at least 30 seconds and then washed with a halocarbon or a mixture of halocarbon and an alcohol the chromate treatment solution before drying. By the procedure chromium is evenly and uniformly taken up on the surface of the metallic material and the amount of chromium taken up on the surface can be controlled by conditions of standing in said atmosphere.</p> |
申请公布号 |
EP0203514(A2) |
申请公布日期 |
1986.12.03 |
申请号 |
EP19860106904 |
申请日期 |
1986.05.21 |
申请人 |
NIPPON DACRO SHAMROCK CO. LTD. |
发明人 |
AYUKAWA, NOBUHIRO;KONISHI, YASUHIKO |
分类号 |
C23C2/04;C23C22/04;C23C22/26;C23C22/83;(IPC1-7):C23C22/04;C23C22/73 |
主分类号 |
C23C2/04 |
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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