Process for electrolytically forming glossy film on articles...

Details Process for electrolytically forming glossy film on articles... Process for electrolytically forming glossy film on articles...

C - Chemistry, Metallurgy

25

D

204/24.5

C25D 11/06 (2006.01) C25D 11/12 (2006.01) C25D 11/14 (2006.01)

Patent

CA 1130236

ABSTRACT OF THE DISCLOSURE A process for electrolytically treating an article of aluminum or alloy thereof to form a glossy film thereon, the process comprising the step of subjecting the article to electrolysis in an aqueous alkaline bath containing sodium phosphate and to which bath has been added a compound selected from the group consisting of organic acids, inorganic acids and salts thereof, the process being carried out under the conditions of a bath temperature of 20 to 90°C and a current density of 0.5 to 80 A/dm2.

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