Apparatus for incremental electro-processing of large areas

Details Apparatus for incremental electro-processing of large areas Apparatus for incremental electro-processing of large areas

1976-12-21

1978-04-04

Mack, John H.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204224R, 204224M, 204237, 204273, 204225, C25F 316, B23P 112, C25D 1712, C25D 2110

Patent

active

040826384

ABSTRACT:
A dielectric processing chamber unit for use in electroprocessing large surface areas including electropolishing and electroplating. The processing chamber unit has an open face, an open top, a sealing strip, an electrolyte inlet and an electrode. The processing chamber unit is placed with its open face against a surface to be electroprocessed and an electrolyte is introduced into the chamber through the inlet. The inlet is located so that the entering electrolyte dislodges gas bubbles formed during electroprocessing and then both the electrolyte and gas leave the chamber through its open top.
A method of electroprocessing a surface using such a processing chamber unit whereby a relatively small amount of electrolyte is used and recirculated during processing. In this method, the chamber unit is used to electroprocess the inner surface of a vessel concentric about its longitudinal axis whereby the processing chamber unit is temporarily mounted from a shaft maintained on this axis and the chamber unit is rotated around the interior of the vessel during the electroprocessing procedure.

REFERENCES:
patent: 1794487 (1931-03-01), Schwartz
patent: 1805215 (1931-05-01), Hammond
patent: 2764540 (1956-09-01), Farin et al.
patent: 3223610 (1965-12-01), Inoue
patent: 3546088 (1970-12-01), Barkman et al.

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