APPARATUS FOR APPLYING POWDER COATS Russian patent published in 1997 - IPC

FIELD: equipment for applying coats to inner walls of dead and through openings of elongate objects, may be used in metallurgical industry, mechanical engineering, metal cutting branches of industry. SUBSTANCE: apparatus has housing, supersonic nozzle 1, intermediate nozzle 2, profiled central body 3, two-phase mixture collector 4, perforated sleeve 5 with gas supply channel 6 and two-phase mixture supply channel 7, gas supply branch pip 8, branch pipe 9 for supplying particle-gas suspension and part 10 to be treated. Apparatus provides supersonic flow of two-phase mixture in predetermined direction with required thermal and gas-dynamic parameters to form coats of required thickness on inner surfaces of elongate objects of different configuration without rotating the objects, as well as on surfaces of dead and through openings. EFFECT: wider operational capabilities and enhanced reliability in operation. 1 dwg