发明名称 |
CHROMIUM-FREE CORROSION PROTECTION AGENT AND METHOD FOR PROVIDING CORROSION PROTECTION |
摘要 |
The invention relates to a chromium-free aqueous corrosion protection agent for treating galvanised or alloy galvanised steel surfaces or aluminium surfaces. Said agent contains the following essential constituents: a) 0.5 to 10 g/l hexafluoro-anions of titanium (IV) and/or zircon (IV), b) 5 to 15 g/l vanadium ions, c) 0.5 to 2 g/l transition metal ions, preferably Mn, Fe, Co, d) 30 to 150 g/l phosphoric acid and/or phosphonic acid. The inventive corrosion protection agent preferably also contains an organic film former, especially with a polyacrylate base; and a conductivity pigment. The agent is particularly suitable for treating metal strips in order to protect them against corrosion, with or without subsequent painting, and is preferably applied in such a way as to produce a dry layer coating of 0.5 to 5 g/m<2> on the surface. |
申请公布号 |
WO9929927(A2) |
申请公布日期 |
1999.06.17 |
申请号 |
WO1998EP07643 |
申请日期 |
1998.11.26 |
申请人 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN;KUEPPER, STEFAN;SEIDEL, REINHARD;CALAMINUS, BRIGITTE;HIRSCH, CHRISTINA;RUGGIERI, ALF |
发明人 |
KUEPPER, STEFAN;SEIDEL, REINHARD;CALAMINUS, BRIGITTE;HIRSCH, CHRISTINA;RUGGIERI, ALF |
分类号 |
C23C22/44;C23C22/34;C23C22/36;C23C22/40 |
主分类号 |
C23C22/44 |
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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