发明申请
- 专利标题： MULTI-STAGE PRE-TREATMENT METHOD FOR METAL COMPONENTS HAVING ZINC AND IRON SURFACES
- 专利标题（中）： 具有锌和铁表面的金属部件的多级预处理方法
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申请号： US13484848申请日： 2012-05-31
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公开(公告)号： US20120325110A1公开(公告)日： 2012-12-27
- 发明人: Jan-Willem Brouwer , Frank-Oliver Pilarek , Jens Kroemer , William E. Fristad , Helene Maechel
- 申请人： Jan-Willem Brouwer , Frank-Oliver Pilarek , Jens Kroemer , William E. Fristad , Helene Maechel
- 申请人地址： DE Dusseldorf
- 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： DE Dusseldorf
- 优先权： DE102009047522.2 20101204
- 主分类号： C09D5/08
- IPC分类号： C09D5/08
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/m2 nickel and at least 10 mg/m2 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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