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:
Aug. 02, 2022
Filed:
May. 11, 2018
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Lei Chen, South Windsor, CT (US);
Xiaomei Yu, Westport, CT (US);
Mark R. Jaworowski, Glastonbury, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/66 (2006.01); C25F 3/00 (2006.01); C25F 5/00 (2006.01); C25D 5/44 (2006.01); C23C 18/16 (2006.01); C23C 18/54 (2006.01); B32B 15/01 (2006.01);
U.S. Cl.
CPC ...
C25D 3/665 (2013.01); B32B 15/016 (2013.01); C23C 18/1653 (2013.01); C23C 18/54 (2013.01); C25D 5/44 (2013.01); C25F 3/00 (2013.01); C25F 5/00 (2013.01);
Abstract
A method of applying a protective coating with improved adhesion on an aluminum alloy component includes first pretreating the surface of a component by depositing a sacrificial protective immersion layer using a zincating or similar process. Portions of the protective immersion layer as well as portions of the underlying aluminum alloy substrate are then electrolytically etched off in an ionic liquid. A protective aluminum coating is then electrodeposited on the component in an ionic liquid.