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:
Jan. 30, 2018
Filed:
Feb. 11, 2013
Applicant:
Mecaprotec Industries, Muret, FR;
Inventors:
Assignee:
MECAPROTEC INDUSTRIES, Muret, FR;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/83 (2006.01); C23C 22/56 (2006.01); C23C 22/34 (2006.01); C25D 11/18 (2006.01); C25D 11/04 (2006.01); C25D 11/30 (2006.01); C23C 22/57 (2006.01); C23G 1/00 (2006.01); C23C 22/00 (2006.01); C25D 11/24 (2006.01);
U.S. Cl.
CPC ...
C23C 22/56 (2013.01); C23C 22/34 (2013.01); C23C 22/57 (2013.01); C23C 22/83 (2013.01); C23G 1/00 (2013.01); C25D 11/04 (2013.01); C25D 11/18 (2013.01); C25D 11/30 (2013.01); C23C 2222/10 (2013.01); C25D 11/246 (2013.01);
Abstract
A method for surface treatment of a part made of aluminum, magnesium, or one of the alloys thereof, to protect the part from corrosion. The method comprises consecutively immersing the part in a first aqueous bath containing a corrosion-inhibiting metal salt and an oxidizing compound, and a second aqueous bath containing an oxidizing compound and a corrosion-inhibiting rare-earth salt. The method can be carried out for the chemical conversion of aluminum or the alloys thereof, and of magnesium or the alloys thereof, on parts that have not been previously treated, or after anodizing the part to seal the anodic layer.