发明名称 |
ZINC PHOSPHATISING USING LOW CONCENTRATION OF COPPER AND MANGNESE |
摘要 |
Process for phosphatizing metal surfaces of steel, zinc coated or zinc-alloy coated steel and/or of aluminium where the metal surfaces are brought into contact with a phosphatizing solution containing zinc through spraying or immersion for a time between 3 seconds and 8 minutes; the solution contains 0.2 to 3 g/l zinc ions, 3 to 50 g/l phosphate ions, calculated as PO4, 1 to 150 mg/l manganese ions, 1 to 30 mg/l copper ions and one or several accelerators.
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申请公布号 |
CA2247141(A1) |
申请公布日期 |
1997.08.21 |
申请号 |
CA19972247141 |
申请日期 |
1997.02.10 |
申请人 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN |
发明人 |
KUHM, PETER;BROUWER, JAN-WILLEM;BRANDS, KARL-DIETER (DECEASED);GEKE, JUERGEN;MAYER, BERND;GOTTWALD, KARL-HEINZ |
分类号 |
C23C22/18;C23C22/36;(IPC1-7):C23C22/18;C23C22/83 |
主分类号 |
C23C22/18 |
代理机构 |
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代理人 |
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