Bath and method for anodizing aluminized parts

Details Bath and method for anodizing aluminized parts Bath and method for anodizing aluminized parts

1983-03-29

1984-06-19

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

106 1413, 106 1414, C25D 1108, C25D 1110

Patent

active

044552017

ABSTRACT:
Aluminized parts are anodized in an aqueous bath which contains 1050 to 1040 g per L of sulfuric acid with a density of 1.84 and optionally 1 to 100 g of a polyhydroxy alcohol and 1 to 100 g of a multibasic organic acid. The anodizing is carried out at a pH value of less than 1 with a current density of 0.5 to 3 A/dm.sup.2 at 0.degree. to 30.degree. C. The method can be used with partially aluminized parts without destroying the base material.

REFERENCES:
patent: 1869042 (1932-07-01), Bengston
patent: 3252875 (1966-05-01), Economy
Handbook of Chem. & Phyics, Chem. Rubber Co., 1951, p. 1730.
Table of Conversion Factors, Hanson van Winkle Mining Co.

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