Anodic oxidation of aluminum and aluminum alloys with a lignin e

Details Anodic oxidation of aluminum and aluminum alloys with a lignin e Anodic oxidation of aluminum and aluminum alloys with a lignin e

1977-05-20

1981-06-02

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

C25D 1108, C25D 1110

Patent

active

042709911

ABSTRACT:
Aluminum and its alloys are anodized with a hard finish by enhancing the anodizining electrolyte solution with a lignin or lignosulfonate salt.

REFERENCES:
patent: 3146178 (1964-08-01), Cochran et al.
"Surface Treatment of Al", by S. Wernick et al., 1964, pp. 338, 347.
Metals Handbook, 8th Edition, vol. 2, Heat Treating, Cleaning and Finishing, American Society for Metals, Ohio, pp. 620 to 623 (Copyright 1964).

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