ELECTRIC ARC PLASMA TORCH FOR COATINGS FROM REFRACTORY DISPERSED MATERIALS APPLICATION Russian patent published in 2018 - IPC H05H1/26 C23C4/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to the coatings from refractory dispersed materials application devices, and may be used in metallurgy, plasma chemistry, and machine-building industry. Electric plasma torch contains coaxially and sequentially installed cooled cathode assembly with cathode, insulator, anode assembly with anode nozzle, plasma generating gas injection system and processed material input system with the carrier gas, which ensure focusing of the latter in the near cathode area. Near cathode area passes into the anode nozzle cylindrical channel. In the plasma torch, the cone-shaped fairing is equipped with six special channels, made at an angle of 60° to the gas-powder mixture motion direction, leveling the gas-powder mixture density and creating the vortex flow along the channel section. Conical casing, which forms channels with conical output sections for the plasma-forming gas and carrier gas with powder supply to the anode nozzle channel, is made ceramic and mounted on the cathode assembly housing.

EFFECT: technical result is the applied coatings quality improvement, increase in the material utilization rate and the plasma torch service life.

1 cl, 2 dwg