FIELD: devices used in ultrasonic plating. SUBSTANCE: on the side wall of a bushing, near its outlet bend there is a cross through channel, with its external extension forming a ring belt. There is a nut screwed into the belt. The powder-and-combustion products-mixing block is formed by the bushing for which purpose the powder-feeding line is connected to the channel. The unit is provided with a ring-type ribbed insert; the insert is located between a shell and nozzle engaged with ribs. The inner surface of the bushing is cylindrical. The relation between the inner diameter of bushing and that of nozzle lies in the range of 1.0 and 1.25. The bushing is spring-loaded. EFFECT: higher efficiency. 3 cl, 3 dwg
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