METHOD OF PLASMA SPRAY COATING Russian patent published in 2017 - IPC C23C4/02 C23C4/12 C23C4/18 

FIELD: machine engineering.

SUBSTANCE: method for plasma coating a metal workpiece comprises heating the workpiece surface and the plasma spraying coating layer on its surface, the exercise heating portion surface to be coated, the plasma stream to a temperature at which the size of the extended heat flow surface area is equal to the size the coating on said portion at a temperature of spraying a desired coating layer after deposition is stopped and the coating surface temperature is measured and the surface temperature of the preform at the interface of the sprayed layer and to eliminate the temperature difference by controlling the supply of cooling medium on the sprayed layer and the interface of the preform to cool.

EFFECT: improving the quality of coverage by improving the adhesion of the applied layer.

2 ex, 2 dwg