Method for continuous electrolytic coloring of aluminum articles

Details Method for continuous electrolytic coloring of aluminum articles Method for continuous electrolytic coloring of aluminum articles

1975-08-26

1976-11-02

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204 35N, C25D 706, C25D 1122

Patent

active

039896056

ABSTRACT:
A method for electrolytic coloring of aluminum articles which comprises continuously supplying an aluminum strip or wire into anodic oxidation bath and then into electrolytic coloring bath, anodizing the aluminum strip or wire to form thereon an oxide film or layer, and electrolytic coloring the oxide film or layer by means for permitting the aluminum strip or wire to act as an anode in the anodic oxidation bath and as a cathode in the electrolytic coloring bath without connecting the aluminum strip or wire directly to a power source.

REFERENCES:
patent: 3079308 (1963-02-01), Ramirez et al.
patent: 3759801 (1973-09-01), Patrie et al.
patent: 3766043 (1973-10-01), Herrmann et al.

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