Process for improving corrosion resistant characteristics of chr

Details Process for improving corrosion resistant characteristics of chr Process for improving corrosion resistant characteristics of chr

1978-04-11

1979-07-31

Ansher, Harold

Stock material or miscellaneous articles

Composite

Of metal

204 35N, 204 38A, 204 42, 428539, B32B 1520, B32B 300, B32B 1504, C25D 1104

Patent

active

041630831

ABSTRACT:
The invention relates to a method for preparing aluminum and aluminum alloy objects for plating which results in an article whch exhibits improved corrosion resistant characteristics. The process includes anodizing the aluminum object in an acid bath, placing the anodized object in contact with a chemical which impregnates and is absorbed by the oxidized crystalline surface and finally exposing the treated aluminum object to heat so that the impregnating chemical is pyrolyzed to form an electronically conductive oxide thereby permitting the plating process while preserving an anodic coating of high ionic resistance.

REFERENCES:
patent: 3971710 (1976-07-01), Romankiw
patent: 4066816 (1978-01-01), Sheasby et al.
patent: 4067782 (1978-01-01), Bailey et al.
patent: 4070255 (1978-01-01), Hasegawa et al.
patent: 4090880 (1978-05-01), Chu et al.

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