Particle injection device for thermal spraying

Details Particle injection device for thermal spraying Particle injection device for thermal spraying

B - Operations, Transporting

05

D

117/53, 32/60

B05D 1/10 (2006.01) B05B 7/20 (2006.01) B05B 7/22 (2006.01) B05D 1/08 (2006.01) H05H 1/42 (2006.01)

Patent

CA 1255974

ABSTRACT OF THE DISCLOSURE There is described a method and an apparatus wherein particles and a carrier gas are injected under pressure into a plasma flame. The particles are completely melted and are thereafter propelled onto a substrate to produce a coating thereon. According to the invention, the speed of the particles is slowed down and the flow of the gas carrier is adjusted, such as by disposing a cyclone ahead of the plasma flame, so as to provide an efficient injection of the particles in the center of the plasma flame.

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