发明公开
EP2507408A1 MEHRSTUFIGES VORBEHANDLUNGSVERFAHREN FÜR METALLISCHE BAUTEILE MIT ZINK- UND EISENOBERFLÄCHEN
有权
MEHRSTUFIGES VORBEHANDLUNGSVERFAHRENFÜRMETALLISCHE BAUTEILE MIT ZINK- UNDEISENOBERFLÄCHEN
- 专利标题: MEHRSTUFIGES VORBEHANDLUNGSVERFAHREN FÜR METALLISCHE BAUTEILE MIT ZINK- UND EISENOBERFLÄCHEN
- 专利标题(英): Multi-stage pre-treatment method for metal components having zinc and iron surfaces
- 专利标题(中): MEHRSTUFIGES VORBEHANDLUNGSVERFAHRENFÜRMETALLISCHE BAUTEILE MIT ZINK- UNDEISENOBERFLÄCHEN
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申请号: EP10776723.8申请日: 2010-11-15
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公开(公告)号: EP2507408A1公开(公告)日: 2012-10-10
- 发明人: BROUWER, Jan-Willem , PILAREK, Frank-Oliver , KRÖMER, Jens , FRISTAD, William, E. , MAECHEL, Helene
- 申请人: Henkel AG & Co. KGaA
- 申请人地址: Henkelstrasse 67 40589 Düsseldorf DE
- 专利权人: Henkel AG & Co. KGaA
- 当前专利权人: Henkel AG & Co. KGaA
- 当前专利权人地址: Henkelstrasse 67 40589 Düsseldorf DE
- 优先权: DE102009047522 20091204
- 国际公布: WO2011067094 20110609
- 主分类号: C23C22/78
- IPC分类号: C23C22/78 ; C23C22/34 ; C23C18/31 ; C25D13/20 ; C23C18/32
摘要:
The invention relates to an acidic, aqueous, chromium-free composition (A) for the anti-corrosive treatment of steel and/or galvanized steel surfaces comprising metal ions (M) selected from ions at least of the elements nickel, cobalt, molybdenum, iron or tin and a multi-stage method applying the composition (A) for the anti-corrosive pre-treatment of metal components which have steel and/or galvanized steel surfaces. The invention further relates to metal surfaces of zinc or iron having a passive layer system comprising at least 30 mg/m
2 nickel and at least 10 mg/m
2 zircon, titanium and/or hafnium and sulfur, wherein nickel is present in metallic form at up to at least 30 At.-%, obtainable in a method according to the invention.
2 nickel and at least 10 mg/m
2 zircon, titanium and/or hafnium and sulfur, wherein nickel is present in metallic form at up to at least 30 At.-%, obtainable in a method according to the invention.
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