PROCESS FOR PRODUCTION OF ALUMINUM WHEEL - CENTRAL MOTOR WHEEL CO LTD

Title:

PROCESS FOR PRODUCTION OF ALUMINUM WHEEL

Document Type and Number:

WIPO Patent Application WO/2010/026876

Kind Code:

A1

Abstract:

A process for production of an aluminum wheel, which makes it possible, even when non-chromate surface treatment is conducted after casting, to attain sufficient tight adhesion between an aluminum wheel and a non-chromate coating and sufficient corrosion resistance. A process for production of an aluminum wheel, characterized by comprising the cleaning step of etching the surface of an aluminum wheel chemically with an alkaline cleaning fluid containing an alkaline builder, an organic builder and a chelating agent until the atomic ratio of metallic Si to oxide Si on the surface of the aluminum wheel becomes 0.01 to 9. In cleaning the surface of an aluminum wheel, the process can dispense with shot blasting.

Inventors:

YAMADA TAKESHI (JP)
FUJII YOSHITOMO (JP)
SATO HIROYUKI (JP)
NOMOTO SOICHI (JP)

Application Number:

PCT/JP2009/064499

Publication Date:

March 11, 2010

Filing Date:

August 19, 2009

Export Citation:

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Assignee:

CENTRAL MOTOR WHEEL CO LTD (JP)
NIHON PARKERIZING (JP)
YAMADA TAKESHI (JP)
FUJII YOSHITOMO (JP)
SATO HIROYUKI (JP)
NOMOTO SOICHI (JP)

International Classes:

C23F1/36; C23G1/22

Foreign References:

JP2004315864A	2004-11-11
JP2002088492A	2002-03-27
JPH08269757A	1996-10-15
JPH0790629A	1995-04-04