FIELD: protective coatings.
SUBSTANCE: invention can be used to form alloying coating by means of plasma treatment of materials. Formation of alloying coating comprises employment of arc discharge whose column is displaced in contact with surface being treated in interaction with alloying component-containing powder placed thereon. Cross-section area of arc column in contact zone is now increased by blowing column along all its length with highly turbulent gas flow. In this case, powder containing alloying component is fixed by a layer on the surface being treated, for which purpose powder is preliminarily mixed with a viscous material to form homogenous paste. Such viscous binder is selected from substances having adhesion to the surface in question and which are either inert for material of this surface or bear alloying component.
EFFECT: increased area of working zone of arc discharge on surface being treated and reduced intensity of energetic action resulting in increased uniformity and improved quality of the surface.
3 cl, 2 cl
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