Method of electrolytically graining aluminum metal sheets suitab

Details Method of electrolytically graining aluminum metal sheets suitab Method of electrolytically graining aluminum metal sheets suitab

1987-04-27

1988-04-05

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, C25F 304

Patent

active

047356960

ABSTRACT:
A method for producing aluminum sheets for lithographic plates by electrolytically etching the surface in an aqueous mineral acid electrolyte solution utilizing direct current with superimposed alternating current. The surface of aluminum plate sheets may be mechanically grained prior to the step of electrolytic etching.

REFERENCES:
patent: 2930741 (1960-03-01), Burger
patent: 3249523 (1966-05-01), Post
patent: 4477317 (1984-10-01), Chu

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