FIELD: spraying powdered materials on surfaces. SUBSTANCE: spraying gun has case carrying hook and ground strip. Case also mounts power lead-in and has through hole and inlet duct to provide communication between this hole and top surface of case; they accommodate parts feeding powder to sprayer and producing uniform powder-gas stream, as well as channels separating gas stream from gas inlet and dividing it into several streams. Gas flow-rate, power-supply, and gas supply controls are mounted on top surface of case. Barrel is built up of bushing- and-flange assembly whose axis is located along barrel axis and which is locked in position inside case hole by means of locking screw, powder charging device, and flexible tube potted in insulating compound. Spraying nozzle is mounted on threaded bushing. Novelty is that spraying gun has, in addition, one more gas duct that functions to convey one of compressed gas streams passed through case duct to part of powder-gas stream that flows along barrel axis. EFFECT: enlarged functional capabilities and facilitated operation and maintenance. 5 cl, 12 dwg
