FIELD: processes and equipment for gas-shield welding and surfacing of metallic parts.
SUBSTANCE: activated wire for welding and surfacing includes metallic rod with composition coating with activating flux applied onto it. Said coating represents plated micro-composite having metallic matrix where dispersed phase is uniformly distributed. Dispersed phase contains powder of activating flux at next relation of metal volume and activating flux volume, vol. %: metal, 60 - 95; activating flux, 5 - 40. Wire may include in addition metallic coating applied onto surface of metallic rod and(or) metallic coating applied onto surface of composition coating. Composition coating provides good electric contact of wire with electric current supply mouthpiece of torch and active action of activating ingredients upon electric arc for improving its fusion-through capability.
EFFECT: enhanced transition of electrode metal drops to welding bath, elimination of corrosion of welding wire.
3 cl, 1 dwg, 2 tbl, 1 ex
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