METHOD FOR FORMING GOLDEN YELLOW FILM LAYER ON SURFACE OF ALUMINUM ALLOY

摘要

A method for forming a golden yellow film layer on the surface of an aluminum alloy. A clean aluminum alloy is placed in oxidizing and coloring liquid constituted by potassium hypermanganate, sodium persulfate, sodium acetate and sodium chlorate and is oxidized to obtain an aluminum alloy having a golden yellow film layer on the surface.