Plasma spraying apparatus

Details Plasma spraying apparatus Plasma spraying apparatus

H - Electricity

05

H

H05H 1/42 (2006.01) C23C 4/00 (2006.01)

Patent

CA 2303981

A plasma spraying apparatus comprises a plasma torch head provided with an anode base body member, a cathode base body member and an insulating member inserted between the anode base body member and the cathode base body member. In the anode base body member, a gas feeding channel is provided that opens into an essentially conically shaped recess provided in the anode base body member. Via that gas feeding channel, a gas can be fed into a cavity located between a coating powder feeding tube and the outlet nozzle. Thereby, an accumulation of coating powder particles in the region of the outlet nozzle can be substantially avoided and the quality of the coating applied with such a plasma spraying apparatus is improved.

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