PLASMA COATING TORCH Russian patent published in 2022 - IPC H05H1/26 B23K10/00 C23C4/134 

FIELD: plasma technology.

SUBSTANCE: invention relates to the field of plasma technology. Plasma torch for coating application contains a housing, cathode and anode units, an insulator, a cooling system, a cuff in the housing, a gas distribution bushing with channels. The burner is equipped with a gas mixture preparation chamber in the form of an additional and free volume along the internal contour of the gas distribution sleeve. The bushing feed channels are implemented with a tangential arrangement of holes tangentially relative to the inner cylindrical surface of the preparation chamber. The cathode is made in the form of a cone with a vertex rounded to a spherical surface with a smooth transition to the generatrix of the cone. The cooling system is made single-circuit. In the anode unit, the washing zone of the replaceable nozzle is made with an increased cross section.

EFFECT: exclusion of zones of high pressure and rarefaction of the gas mixture, ensuring the uniformity of the plasma flow, reducing erosion on the electrode and on the nozzle, improving the resource characteristics of the plasma torch in the form of reliability and wear resistance.

1 cl, 4 dwg