Invention Grant
US08715403B2 Multi-stage pre-treatment method for metal components having zinc and iron surfaces
有权
具有锌和铁表面的金属部件的多级预处理方法
- Patent Title: Multi-stage pre-treatment method for metal components having zinc and iron surfaces
- Patent Title (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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Application No.: US13484848Application Date: 2012-05-31
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Publication No.: US08715403B2Publication Date: 2014-05-06
- Inventor: Jan-Willem Brouwer , Frank-Oliver Pilarek , Jens Krömer , William E. Fristad , Helene Maechel
- Applicant: Jan-Willem Brouwer , Frank-Oliver Pilarek , Jens Krömer , William E. Fristad , Helene Maechel
- Applicant Address: DE Duesseldorf
- Assignee: Henkel AG & Co. KGaA
- Current Assignee: Henkel AG & Co. KGaA
- Current Assignee Address: DE Duesseldorf
- Agent Mark K. Cameron
- Priority: DE102009047522 20091204
- Main IPC: C23C18/34
- IPC: C23C18/34 ; C23C18/52

Abstract:
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.
Public/Granted literature
- US20120325110A1 MULTI-STAGE PRE-TREATMENT METHOD FOR METAL COMPONENTS HAVING ZINC AND IRON SURFACES Public/Granted day:2012-12-27
Information query
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