Dual-program impulse modulation of plasmatron power in processes of plasma spraying

On the basis of analysis of plasma coating processes the influence of electrical parameters modulation of the remote arc on the temperature field in the "coating-base" system in the local scale, proportional to the diameter of the arc binding spot to the surface, and in the macro scale of sprayed surface is valued. Dual-program impulse modulation of plasmatron power, providing uniform distribution of the coating connection strength with the substrate layer based on uniform distribution of surface thermal activation and local zones of coating penetration on the sprayed surface is offered. (paper)