Electroplating method and apparatus for the preparation of metal

Details Electroplating method and apparatus for the preparation of metal Electroplating method and apparatus for the preparation of metal

1994-05-17

1997-05-13

Valentine, Donald R.

Electrolysis: processes, compositions used therein, and methods

Electroforming or composition therefor

Sheet, web, wire, or filament

205137, 205292, 204216, 204227, 204290R, 204290F, 204280, C25D 120, C25D 104, C25D 706, C25D 1700

Patent

active

056288921

ABSTRACT:
A length of electroplated metal foil, typically copper foil is prepared by placing a stationary arcuate anode concentrically with a rotating cathode drum to define a channel therebetween, passing a plating solution through the channel, conducting electricity across the channel for depositing metal on the cathode drum, and separating the metal deposit from the cathode drum. The anode includes a plurality of circumferentially arranged electrode segments formed of a valve metal material and coated with a platinum group metal or oxide thereof. The electrode segments are removably attached and electrically connected to a back plate. The split anode is easy in assembly and disassembly and, hence, in maintenance and repair, has a high degree of precision in configuration and dimensions, and ensures manufacture of copper foil of quality with a minimized variation in thickness during continuous operation.

REFERENCES:
patent: 4318794 (1982-03-01), Adler
patent: 4936971 (1990-06-01), Pohto
patent: 4956053 (1990-09-01), Polan et al.
patent: 5017275 (1991-05-01), Niksa et al.

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