APPARATUS FOR GASODYNAMIC APPLYING OF COATINGS OF POWDER MATERIALS Russian patent published in 2004 - IPC

FIELD: apparatuses for gasodynamic sputtering or applying of coatings of powder materials, possibly in machine engineering, missile making and other branches of industry. SUBSTANCE: apparatus for gas-dynamic applying of coatings of powder materials includes compressed gas source connected through gas pipeline with unit for heating gas which is connected wit directly to inlet of supersonic nozzle whose Supercritical portion is communicated with meter for feeding powder material. Ducts for supplying powder material into supercritical portion of nozzle are provided in wall of supercritical portion of nozzle. Said ducts are arranged in pairs mutually opposite, in the same cross section of nozzle, and they are turned one to another by inclination angle 30 ÷ 90 degrees relative to axis of nozzle and direction of gas flow. EFFECT: increased useful life period, enhanced efficiency of apparatus. 7 dwg