PROCEDURE FOR APPLICATION OF COATING Russian patent published in 2011 - IPC C23C14/38 

FIELD: machine building.

SUBSTANCE: procedure consists in preparing surface of item, in arranging item and current conducting material in treatment zone, in creation of vacuum, in supply of negative potential separately onto item and current conducting material, in excitation of vacuum arc on current conducting material and in generation of plasma, in bombardment, in cleaning and in heating item with ions of current conducting material, in accumulation and diffusion of ions on surface of item in medium of reaction gas and in forming coating. Also, before placement of item in the treatment zone a layer of alloy is applied on its surface; this layer of alloy is based on nickel and has thickness 4-10 mcm. As current conducting material there is used chromium or its alloy. Simultaneously with accumulation and diffusion of ions of current conducting material surface is bombarded with ions of inert gas of 10-40 keV power.

EFFECT: raised resistance of metal item to salt corrosion, increased heat resistance at maintaining erosion resistance.

3 cl, 1 tbl, 3 ex