METHOD OF BI-METAL COATINGS APPLICATION OUT OF METAL SHEETS ON PART SURFACES Russian patent published in 2015 - IPC C23C26/00 

FIELD: machine building.

SUBSTANCE: method of bi-metal coatings application on steel part surface includes transfer of the metal sheets from the consumable part of rub to the treated part surface during friction between them under pressure due to radial feed of rubs made with possibility of progressive and rotational motion in the tool assembly. Initial roughness of the treated part surface is brought to level of the true surface by microroughnesses cut off by the cutting edges on the work surfaces of the bronze rubs. Then process liquid is supplied to the treatment zone, and forces are applied for radial movement of the bronze rubs till their contact with the part, at that the bottom bronze monolayer is applied with simultaneous part strengthening using friction of the bronze rubs in the process liquid. The top brass monolayer is applied on surface of the bottom bronze monolayer of the treated part surface, at that the top monolayer is applied by friction of the brass rubs in the process liquid.

EFFECT: assurance of qualitative wear-preventive and antifriction coatings out of plastic metals applied by the selective transfer during precision friction, and assurance of improved energy saving parameters, operation service life and fault-free operation.

8 cl, 5 dwg