| 发明名称 |
NICKEL-FREE PHOSPHATING PROCESS |
| 摘要 |
The invention concerns a method of phosphatizing steel, zinc-coated steel and aluminium using phosphatization solutions containing hydroxylamine and/or nitrobenzene sulphonate, these solutions being largely free of undesirable nickel, nitrites and nitrates as well as being free of copper and oxo-anions of halogens.
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| 申请公布号 |
CA2171180(A1) |
申请公布日期 |
1995.03.16 |
| 申请号 |
CA19942171180 |
申请日期 |
1994.08.29 |
| 申请人 |
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发明人 |
ROLAND, WOLF-ACHIM;GOTTWALD, KARL-HEINZ;BRANDS, KARL DIETER;BROUWER, JAN-WILLEM;MAYER, BERND |
| 分类号 |
C23C22/13;C23C22/17;C23C22/18;C23C22/36;C23C22/44;(IPC1-7):C23C22/42 |
主分类号 |
C23C22/13 |
| 代理机构 |
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代理人 |
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