The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Dec. 28, 1993
Shiro Kamiyama, Saitama, JP;
Masanori Kosugi, Saitama, JP;
Masahiro Kurata, Tokyo, JP;
Sadao Shiraishi, Tokyo, JP;
Michio Kobayashi, Tokyo, JP;
Shiro Kamiyama, Saitama, JP;
Masanori Kosugi, Saitama, JP;
Masahiro Kurata, Tokyo, JP;
Sadao Shiraishi, Tokyo, JP;
Michio Kobayashi, Tokyo, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Sky Aluminium Co., Ltd., Tokyo, JP;
Abstract
The surface of an aluminum alloy high-temperature processed article containing Mg is heated at a high temperature of 200° C. or above, thereafter the surface is etched with an aqueous solution containing a chelating agent, and then at least one surface treatment selected from hydration oxidation treatment, coating type chromating, coating, anodizing, and alternating current electrolysis in an aqueous alkali solution is further carried out. This method can provide a surface-treated aluminum alloy high-temperature processed article having superior anticorrosion and adhesion of coatings and a good surface appearance, and is effective as a pretreatment for further surface treatment.