FIELD: technological processes.
SUBSTANCE: invention can be used for welding with flux core of steel plates, including plates with high tensile strength and thick plates. In welding torch between contact tip and protective gas supply nozzle there installed is suction nozzle. Steel shell of wire with flux core has a seam produced by docking or overlapping of steel walls metal edges along length of wire. Wire has diameter of 1.2–2.0 mm and content of flux is 8–30 % of its total weight. Specifically, width of metal wire steel wire metal edges superimposition is limited.
EFFECT: method of welding using inexpensive seam wire with flux core ensures good weldability due to effective removal of hydrogen capable to diffusion when using suction nozzle and optimum design of welding wire.
8 cl, 4 dwg, 6 tbl
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