C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
204/1, 342/48
C25C 1/18 (2006.01) C25C 7/06 (2006.01)
Patent
CA 1237797
ABSTRACT A method and apparatus for effecting periodic current reversal in metal electro-deposition processes are disclosed. By using a circuit in which the current always flows in the same direction through a filter reactor, regardless of the current flow through the electro-deposition cell, faster reversal switching times are obtained. The overshoot and AC ripple encountered on current reversal are also decreased.
428401
Anderson Harold J.t.
Kerby Robert C.
Krauss Clifford J.
Neame Hubert W.
Cominco Ltd.
Smart & Biggar
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