Title:
金属部材の耐腐食前処理のための多段階法
Document Type and Number:
Japanese Patent JP5837885
Kind Code:
B2
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.
Inventors:
Blower Jean-Willem
Pilak Frank-Oliver
Clemence
Fristad William E
Mechel Helen
Pilak Frank-Oliver
Clemence
Fristad William E
Mechel Helen
Application Number:
JP2012541391A
Publication Date:
December 24, 2015
Filing Date:
November 15, 2010
Export Citation:
Assignee:
Nihon Parkerizing Co.,Ltd.
International Classes:
C23C22/78; C23C22/34
Domestic Patent References:
| JP3226584A | ||||
| JP2001192851A |
Foreign References:
| WO2008135478A2 |
Attorney, Agent or Firm:
Shunichi Yoshimura