发明名称 |
POST-TREATMENT OF CONVERSION-COATED METAL SURFACES |
摘要 |
<p>Disclosed is a process for the post-treatment of conversion-coated metal surfaces. The aqueous treating solution contains a melamine-formaldehyde resin and preferably contains a vegetable tannin and is free of chromium. Treatment with the melamine-formaldehyde resin-containing solution provides improved corrosion-resistance over that obtained with a water rinse and treatment with the melamine-formaldehyde resin and vegetable tannin combination solution gives corrosion results as measured by salt spray resistance comparable to those obtained with the use of the commercial dilute chromiumcontaining rinse.</p> |
申请公布号 |
CA1066442(A) |
申请公布日期 |
1979.11.13 |
申请号 |
CA19750238287 |
申请日期 |
1975.10.24 |
申请人 |
OXY METAL INDUSTRIES CORPORATION |
发明人 |
KULICK, LEONARD;HOWELL, JOHN K. (JR.) |
分类号 |
B05D7/14;C23C22/00;C23C22/82;C23C22/83;(IPC1-7):09D5/08;09D3/50;23F11/10 |
主分类号 |
B05D7/14 |
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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