METHOD OF OBTAINING COATING ON PART SURFACE FROM NONFERROUS METALS Russian patent published in 2019 - IPC C23C4/134 C23C4/02 B82Y40/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to production of coating on surface of parts from non-ferrous metals by transfer of high-temperature gas flow of nanoparticles. Method of producing coating on surface of part from nonferrous metals includes formation in combustion chamber of high-speed sprayer of high-temperature gas flow by fuel combustion in oxidizer, supplying to the combustion chamber of the high-speed spray liquid initial material, which is a source of formation of nanoparticles, formation, heating and transfer of high-temperature gas flow of nanoparticles and deposition thereof on the surface of the part, wherein said material, which is a source of nanoparticles formation, is simultaneously used as fuel for high-temperature gas flow formation, wherein said material is a true or colloidal solution of organic and / or inorganic compounds in an organic solvent or a mixture of several solvents, wherein transfer of high-temperature gas flow of nanoparticles and deposition thereof on part surface is carried out together with immediately preceding treatment of part surface by electric arc, created between two tungsten electrodes at alternating current of 35–45 A, voltage 12–16 V and passing along part surface with speed of high-speed sprayer of sputtering installation at distance between arc and gas jet with sprayed powder material of 2–4 mm.

EFFECT: high adhesion strength, high cohesion strength of the coating material, and low porosity of the coating.

1 cl, 3 ex, 2 tbl