Apparatus and method for continuous electrolytic coloring of alu

Details Apparatus and method for continuous electrolytic coloring of alu Apparatus and method for continuous electrolytic coloring of alu

1974-03-11

1977-01-11

Edmundson, F.C.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 28, 204206, E25D 1700

Patent

active

040025497

ABSTRACT:
An apparatus comprising means for continuously supplying an aluminum strip or wire, an anodic oxidation bath for anodizing the aluminum strip or wire to form thereon an oxide film or layer, an electrolytic bath for coloring the oxide film or layer, and 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 bath without connecting the aluminum strip or wire directly to a powder source, and a method for electrolytic coloring of aluminum articles.

REFERENCES:
patent: 2244423 (1941-06-01), Hall
patent: 2445675 (1948-07-01), Lang
patent: 2667453 (1954-01-01), Murray
patent: 3099610 (1963-07-01), Cybriwsky et al.
patent: 3634206 (1972-01-01), Herrman et al.
patent: 3723283 (1973-03-01), Johnson et al.
patent: 3766043 (1973-10-01), Herrman et al.
Electroplating Engineering Handbook, 2nd Ed. by Graham et al., Pub. by Reinhold, New York, pp. 437, 438.

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