METHOD OF PRODUCTION OF ANTIFRICTION COAT ON THIN- WALLED STEEL INSERTS OF SLIDING BASES Russian patent published in 2002 - IPC

FIELD: mechanical engineering; manufacture and reconditioning of sliding bearings. SUBSTANCE: proposed method consists in layer-by-layer plasma spraying of mixture of powder material of tin, copper, lanthanum and aluminum. Proposed method includes electric contact treatment of each layer; first, second and third components of mixture of powder materials are fed separately under nozzle exit section of plasmatron via respective pipe line whose axes spread apart by 120 deg. and plasma jet is twisted. EFFECT: enhanced corrosion resistance, cohesion strength of coat, improved antifriction properties and low cost of manufacture. 4 dwg