Method for etching a recrystallized aluminum foil for electrolyt

Details Method for etching a recrystallized aluminum foil for electrolyt Method for etching a recrystallized aluminum foil for electrolyt

1982-04-15

1983-12-13

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156665, 204 33, 20412935, 252 792, B44C 122, C03C 1500, C03C 2506, C23F 100

Patent

active

044203675

ABSTRACT:
Method for etching a recrystallized aluminum foil for electrolytic capacitors by carrying out an electrolytic tunnel formation in a first etching stage, characterized by the feature that the further etching for tunnel enlargement takes place chemically in one or several etching stages.

REFERENCES:
patent: 2193711 (1940-03-01), Burnham
patent: 2699382 (1955-01-01), Altenpohl
patent: 2755237 (1956-07-01), Turner
patent: 3666642 (1972-05-01), Alwan et al.
patent: 3779877 (1973-12-01), Alwitt
patent: 4213835 (1980-07-01), Fickelscher

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