Accession Number : ADD015040

Title :   Protective Coating System for Aluminum.

Descriptive Note : Patent Application, Filed 16 May 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Quartarone, James R

Report Date : 16 May 1991

Pagination or Media Count : 13

Abstract : The present invention relates to methods for producing protective coatings upon aluminum articles. It is an object of the present invention to provide a novel method for providing a highly adherent and resistant protective coating on aluminum articles. It has now been found that the foregoing and related objects may be readily attained in a method for developing a protective coating on aluminum articles which includes initially abrading its surface to produce a surface microroughness of 250-1250 microinches (RMS), and thereafter hard anodizing the roughened surface to a depth of at least 0.0015 inch. Patent applications.

Descriptors :   ALUMINUM, PATENT APPLICATIONS, PROTECTION, PROTECTIVE COATINGS, RESISTANCE

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE