Accession Number : ADD011749

Title :   Passivation of Steel with Aqueous Amine Solutions.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hearst,P J

Report Date : 03 May 1985

Pagination or Media Count : 13

Abstract : This is a process that allows previously cleaned steel (which may have been cleaned in any of several different ways) to be passivated with a rinse of almost pure water, that is made slightly alkaline to inhibit corrosion, and flash rusting such that any small residue remaining of the steel surface after drying of the water will itself evaporate and in such a manner that any remaining residue will be incorporated into a subsequently applied non-aqueous protective coating without leaving any water-soluble or ionic residue on the surface of the steel that will cause corrosion or affect adhesion of the protective coating.

Descriptors :   *PATENT APPLICATIONS, *RUST(OXIDATION), *CORROSION INHIBITION, *PROTECTIVE TREATMENTS, *STEEL, METHODOLOGY, CHEMICAL CLEANING, PH FACTOR, ADHESION, AMINES, SOLUTIONS(MIXTURES), WATER, DRYING, SURFACES, NONAQUEOUS ELECTROLYTES, PROTECTIVE COATINGS, CORROSION, PASSIVITY, PURITY, SURFACES

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE