Method for internally electropolishing tubes

Details Method for internally electropolishing tubes Method for internally electropolishing tubes

1986-04-07

1987-11-10

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204237, 204212, 204272, 204275, 204269, C25F 324

Patent

active

047056118

ABSTRACT:
An apparatus for internally electropolishing tubes in which a plurality of elongate tubes are horizontally supported and rotatably driven about their length axes. An outlet fitting including an end dam permits rotation of the tube outlet end therein, allows escape of gases from the upper portion of the tube, and permits overflow of electrolyte liquid thereover and fixedly supports the end of a cathode rod. The cathode rod is formed as two aligned, axially adjacent partial length sections. The positive terminal of an electric current supply connects at a plurality of points to the tube along its length and connects at its negative terminal individually to the outer ends of the two cathode sections.

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