Chemistry: electrical and wave energy – Processes and products
Patent
1989-06-20
1991-09-17
Valentine, Donald R.
Chemistry: electrical and wave energy
Processes and products
2041291, 204224R, 204224M, 204231, 204267, 204407, C25D 356, C25D 2112, C25F 316, G01N 2726
Patent
active
050492462
ABSTRACT:
Apparatus for electrolytic processing of materials, includes an electrolytic processing bath, plural first electrodes, at least one second electrode, and a power supply for supplying time multiplexed power to the electrodes. The power supply may include a pulse width modulator or a pulse position modulator and is operative to control the relative amounts of time that the respective electrodes are energized for electroplating, electropolishing, and the like. Current control and bath composition control are provided. A method for electrolytic processing of materials includes placing plural first electrodes in an electrolytic processing bath, placing at least one second electrode in such bath, and at different times supplying power between at least one of such first electrodes and such at least one second electrode and supplying power between at least another of such first electrodes and such at least one second electrode. The invention also relates to a power supply and method for use in electrolytic processing of materials.
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Malone, G. A., Electroforming Nickel-Cobalt Alloys by Pulse Plating with Automatic Anode Current Switching.
Da Silva Ivan P.
Hull Harry F.
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