FIELD: devices used in plating. SUBSTANCE: a through channel is made behind the nozzle on the side wall of a branch pipe; powder-and-combustion products-mixing unit is located in the branch pipe, with the powder feeding pipeline being connected with the channel. The inner diameter ratio of the branch pipe and that of the nozzle is in the range of 1.0 and 1.25. There is a bulge on the inner surface of the branch pipe with cross ducts made around the passage system. Behind the buldge, the flow section gradually increases toward the exit. EFFECT: higher efficiency. 4 cl, 8 dwg
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