Method for surface treatment of anodic oxide film

Details Method for surface treatment of anodic oxide film Method for surface treatment of anodic oxide film

1979-07-09

1980-10-28

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

204 38A, 204 37R, C23B 902

Patent

active

042305390

ABSTRACT:
A method for the surface treatment of anodic oxide film is disclosed which comprises the steps of electrolyzing the porous surface of anodic oxide film of aluminium or aluminium alloy in an aqueous solution of ammonium thiomolybdate, optionally immersing it in an aqueous solution of ammonium thiomolybdate or alkali metal thiomolybdate and in dilute mineral acid or organic acid alternately, and subjecting it to a heat treatment so as to impregnate the micropores of the anodic oxide film with molybdenum sulfide and to fix the molybdenum sulfide therein.

REFERENCES:
patent: 2899368 (1959-08-01), Spooner
patent: 3257244 (1966-06-01), Barkman
patent: 3406106 (1968-10-01), Garwood et al.
patent: 3567597 (1971-03-01), Hovey et al.
patent: 3591472 (1971-07-01), Amsallem
patent: 3625839 (1971-12-01), Spehner et al.
patent: 3787295 (1974-01-01), Endinger et al.

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