| 发明名称 |
TREATMENT OF ZINC SURFACES |
| 摘要 |
An improved chromium-free zinc surface treatment provides for contacting the surface with an aqueous solution of a thiourea compound and a vegetable tannin at a pH value of from 2 to 6.5. Corrosion resistance and paint receptivity of the surface are enhanced. |
| 申请公布号 |
ZA7705095(B) |
申请公布日期 |
1978.07.26 |
| 申请号 |
ZA19770005095 |
申请日期 |
1977.08.23 |
| 申请人 |
OXY METAL IND CORP |
发明人 |
MIYAZAKI Y;SUZUKI M;KANEKO H |
| 分类号 |
B05D7/14;B05D3/10;C03C23/00;C23C22/53;C23C22/78;C23F;C23F11/00;C23F11/10;C25D |
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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