| 摘要 |
FIELD: metallurgy, processes. ^ SUBSTANCE: method includes acceleration of gas powder suspension by ultrasonic gas jet in acceleration channel and further application of gas powder suspension. Ultrasonic gas jet is fed to acceleration channel from supersonic nozzle, where gas is fed from source of gas. Gas powder suspension is fed to acceleration channel from ejection chamber, where it is fed from feeder of powder material, in the form of whirl through annular gap, formed by external surface of supersonic nozzle and internal surface of ejection chamber in the place of its connection to body of acceleration channel. Facility includes acceleration channel, ejection chamber, and supersonic nozzle, source of compressed gas and feeder of powder material. Supersonic nozzle is partly located inside of ejection chamber coaxial to it with formation of annular gap in postcritical part of supersonic nozzle. Input of supersonic nozzle is connected to source of compressed gas. Feeder of powder material is formed by divided and sealed-joined body and cover, and inside is outfitted with U-shaped bended tube, which is implemeneted as articulated by U-shaped curve, and its output pert is outfitted by cutout in the area adjoined to internal surface of cover. ^ EFFECT: efficiency, portability, removal of powders sticking. ^ 21 cl, 2 dwg, 4 ex |
