Accession Number : ADD001037

Title :   Method and Composition for Phosphatizing Steel Under Pressure.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Wagner,Linden H ; Chamberlain,Paul G

Report Date : 23 Oct 1973

Pagination or Media Count : 4

Abstract : The patent relates to the improvement of the heat and corrosion resistance of manganese phosphate coatings on ferrous surfaces. This is done by modifying a conventional phosphatizing solution to reduce the ferrous ion content thereof, adding a given quantity thereto of the manganese salt obtained from an acid selected from the group consisting of citric, tartaric, gluconic, and saccharic acids and then carrying out the coating process in a closed chamber under a steam pressure in excess of one pound per square inch.

Descriptors :   *Protective coatings, *Patents, Corrosion inhibition, Steel, Phosphates, Manganese compounds

Subject Categories : Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE