FIELD: welding.
SUBSTANCE: invention can be used in reconditioning and hardening of parts by electrocontact welding of steel tapes with a roller electrode. On the side of the filler tape facing the facing part there are reliefs made in longitudinal and transverse directions in the form of alternating ridges and recesses. When current pulses pass through the additive metal ridges are heated to plastic state and, moving along the fusion surface, fills adjacent cavities. Maximum strength of metal coating welded joint with base is obtained when cross-sectional area of each flange is 44–46 percent more than cavity cross-section area.
EFFECT: disclosed is an additive for electrocontact welding.
1 cl, 2 dwg
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