FIELD: chemistry.
SUBSTANCE: method of applying the electroerosion coating of the cuprum-chrome system, containing chromium carbides, on the cuprous electrical contacts comprises electrical explosion of electrically explodable composite conductor consisting of a two-layer flat cuprous shell with mass of 60-360 mg and a core in the form of chromium and graphite powders in the ratio of 5: 1 with mass equal to 0.5-2.0 mass of the shell, formation of impulse polyphase plasma jet from explosion products, melting of the cuprous electrical contact surface with plasma jet with the absorbed power density of 4.5-6.5 GW/m2, depostion on the explosion products surface, the formation thereon of the composite coating of the Cr-C-Cu system and subsequent impulse-periodic electron-beam coating surface treatment with the absorbed energy density of 40-60 J/cm2, pulse duration of 150-200 ms and pulse number of 10-30.
EFFECT: invention provides electroerosion-resistant coatings with high adhesion with base at the level of cohesion.
8 dwg, 2 ex
