Chemical conversion solution for metal structure and surface treating method

a chemical conversion solution and metal structure technology, applied in electrophoretic coatings, solid-state diffusion coatings, coatings, etc., can solve the problems of insufficient throwing power during electrodeposition, insufficient environmental point of view, and damage to human body, etc., to achieve high coating adhesion of metal surfaces, high throwing power, and corrosion resistance.
US20110094630A1Inactive Publication Date: 2011-04-28HENKEL KGAA
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
HENKEL KGAA
Publication Date
2011-04-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a chemical conversion solution and the surface treating method for realizing high corrosion resistance and high coating adhesion of the metal surface, as well as high throwing power during electrodeposition, and generating no sludge.A chemical conversion solution comprising (A) at least one compound selected from water-soluble germanium compound, water-soluble tin compound, and water-soluble copper compound, (B) at least one compound selected from water-soluble titanium compound and water-soluble zirconium compound, (C) at least one water-soluble nitrate compound, (D) at least one compound selected from water-soluble aluminum compound and water-soluble magnesium compound, (E) at least one water-soluble zinc compound, and (F) at least one fluorine compound, and, the coating process for the metal structure.
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Description

CROSS-REFERENCE TO RELATED CASES

[0001] This application is a continuation under 35 U.S.C. Sections 365(c) and 120 of International Application No. PCT / JP2009 / 061859, filed Jun. 29, 2009 and published on Jan. 7, 2010 as WO 10 / 001,861, which claims priority from Japanese Patent Application Serial No. 2008-172616 filed Jul. 1, 2008, which are incorporated herein by reference in their entirety.BACKGROUND OF THE INVENTION

[0002] This invention relates to a novel chemical conversion solution for a metal surface, and in particular, for a surface of a metal structure which provides excellent corrosion resistance and improved coating adhesion to the metal surface. This invention also relates to a novel surface treating method for a metal structure.

[0003] Chemical conversion for the purpose of improving the corrosion resistance and coating adhesion of a metal has been known in the art for a long time. The most popular chemical conversion is phosphate treatment using an acidic aqueous solution of ...

Claims

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