C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 4/02 (2006.01) B08B 7/00 (2006.01) B23K 9/013 (2006.01) C21D 1/09 (2006.01) C21D 1/38 (2006.01) H01J 37/32 (2006.01) H05B 7/20 (2006.01) C21D 1/773 (2006.01) C21D 9/08 (2006.01)
Patent
CA 2105423
ABSTRACT A method and apparatus for the surface treatment of a metal workpiece which involves the generation between a major exposed portion of an anode and successive restricted areas of a first surface of the workpiece serving as a cathode, a vacuum arc discharge having an arc current which is not substantially less than 50 amp. and having a positive voltage-current gradient.
El-Plasma Ltd.
Smart & Biggar
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