FIELD: equipment for deposition of coatings by cold gas-dynamic spraying. SUBSTANCE: spraying unit consists of supersonic nozzle, prechamber and gas heater and is mounted in movable hollow bars and connected by means of air duct with powder feeder and control panel installed on carriage of moving device. Gripping and turning mechanism connects the pipe to be coated with isolating chamber and suction system and forms dust isolating channel allowing collection and repeated use of excessive powder. EFFECT: extended technological capabilities, higher economic efficiency and improved ecological characteristics. 3 cl, 2 dwg
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