PROCESS OF LASER-THERMAL VACUUM CONDENSATION DEPOSITION OF COAT Russian patent published in 2001 - IPC

FIELD: vacuum condensation deposition of coats on metal and metal- containing surfaces of backing by thermal evaporation of multicomponent materials. SUBSTANCE: process includes laser action with scanning luminous flux on melting pots with components of materials to be evaporated heated by resistive source by turns with the aid of multi-element focusing matrix and on surface of backing with value of specific volume energy contribution of laser radiation equal to W₂= (0,15...0,20)W₁, where is specific volume energy contribution of laser radiation to evaporation of components of materials of coat; C_i is specific hear capacity; m_i = Sδ_iγ_i is specific mass; S is thickness of coat; δ_i is volume content of component in coat; γ_i is specific weight of component; T_i is evaporation temperature of component; T_нi is temperature of heating of component by resistive source; n is number of components in deposited coat. EFFECT: diminished porosity of coat, increased adhesive and cohesive strength of material of coats, corrosion resistance and wear-out of article, improved control over residual intensity in coat. 1 dwg