Particle injection device for thermal spraying

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

1989-02-21

1990-02-20

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Processes

Of discharge modification of flow varying

239 85, 219 7616, 21912147, B05B 124

Patent

active

049019210

ABSTRACT:
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 theraefter 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.

REFERENCES:
patent: 3151913 (1964-10-01), Forsyth
patent: 3573090 (1971-03-01), Peterson
patent: 4199104 (1980-04-01), Houben

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