Method for stripping anodized aluminum and aluminum alloys

Chemistry: electrical and wave energy – Processes and products

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134 3, 134 41, C23G 112, C25D 1104

Patent

active

042447925

ABSTRACT:
A method is described for the controlled removal of anodized oxide layers from the surfaces of aluminum and aluminum alloys, without destruction of the metal. The preferred method uses an aqueous solution of oxalic acid and nitric acid as an oxide stripping bath.

REFERENCES:
patent: 2650157 (1953-08-01), Cochran
patent: 2687346 (1954-08-01), McDonald
patent: 3326803 (1967-06-01), Kelley et al.
patent: 3692583 (1972-08-01), Mucenieks et al.
patent: 3696044 (1972-10-01), Rutledge

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