Process for electrolytically coloring aluminum and aluminum allo

Details Process for electrolytically coloring aluminum and aluminum allo Process for electrolytically coloring aluminum and aluminum allo

1976-03-03

1977-08-16

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 35N, 204 42, C25D 1122

Patent

active

040424715

ABSTRACT:
Aluminum or aluminum alloy is first anodized to form an oxide film thereon. With the pores in this oxide film unsealed, the basis metal is then electrolyzed in an electrolytic solution containing at least two metallic salts and a strongly reducing compound, by use of alternating current at potentials not more than about 15 volts.

REFERENCES:
patent: 3773631 (1973-11-01), Immel et al.
patent: 3795590 (1974-03-01), Patrie
patent: 3912602 (1975-10-01), Zweifel et al.

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