FIELD: technological processes.
SUBSTANCE: invention can be used in within multiplate welding under flux using as the front electrode thin wire with flux core. Between contact tip welding torch and connector for power supply cable is located tubular conductor. Distance between the front end of the contact tip and connector for power supply cable is 100-200 mm. Welding torch comprises an insulation tubular conductor of electrode wire. Method of multiplate hidden-arc welding is specified using as the front electrode wire with diameter of 3.2 mm and less.
EFFECT: invention provides stable welding thin wire with flux core with high speed of its supply at high crimp wire.
4 cl, 3 dwg, 1 tbl, 1 ex
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