FIELD: technological processes.
SUBSTANCE: invention relates to application of coatings on metal contacts. Method includes electric explosion of composite electrically exploding conductor consisting of two-layer flat silver shell with weight of 60–360 mg and core in form of powder of zinc oxide with mass equal to 0.5–2.0 of shell weight, formation from explosion products of a pulsed multiphase plasma jet, its melting surface of copper electric contact at absorbed power density of 4.5–6.5 GW/m2, deposition on surface of explosion products and formation on it of composite coating of ZnO-Ag system and subsequent pulse-periodic electron-beam treatment of coating surface at absorbed energy density of 40–60 J/cm2, pulse duration 150–200 mcs and pulse number 10–30.
EFFECT: invention is aimed at formation on copper electric contacts coatings based on zinc oxide and silver with high electrical conductivity, erosion resistance and adhesion with substrate at the level of cohesion.
1 cl, 2 ex, 2 dwg
