METHOD OF APPLYING THE WEAR-PROOF COATINGS BASED ON TITANIUM CARBIDE, NICKEL AND ALUMINUM ON STAMP STEEL

摘要

FIELD: technological processes.;SUBSTANCE: invention relates to the formation, on steel surfaces, of coatings based on titanium, nickel and aluminum carbide, which can be used in stamping and other industries. Method involves electric explosion of composite electrically blasted conductor, consisting of a two-layer flat aluminum shell with a mass of 60–530 mg and a core in the form of a mixture of titanium carbide powders of a mass equal to 0.5–2.0 of the shell mass, and nickel with a mass equal to 0.5–2.0 of the shell mass, formation from the explosion products of a pulsed multiphase plasma jet, its fusion with the surface of the die steel at an absorbed power density of 4.6–4.8 GW/m², deposition of explosion products onto the surface with the formation of a composite coating of the TiC-Ni-Al system and the subsequent pulse-periodic electron-beam treatment of the coating surface at an absorbed energy density of 40–60 J/cm², the pulse duration is 150–200 microseconds and the number of pulses is 10–30.;EFFECT: invention is directed to obtaining a wear-resistant coating on the steel with high adhesion to the substrate at the level of cohesion.;1 cl, 2 dwg, 2 ex