DEVICE FOR THE ELECTRIC-ARC SEMIAUTOMATIC WELDING OF METAL IN THE SHIELDING GAS

摘要

FIELD: welding. SUBSTANCE: enhanced quality of forming the welded joint at the expense of excluding the sluggishness of the electrode escape is ensured by the fact that the mechanism for feeding the electrode including the conducting roller with electric drive and the contracting roller with electromagnet is connected with the circuit of the constant- current source having the flat characteristic and with a hoseholder. The mechanism is included into the circuit of the constant-current source. EFFECT: simpler design of the device for the electric-arc semiautomatic welding of metal with the simultaneous enhancement of quality of forming the welded joint at the expense of ensuring the absence of sluggishness of the electrode escape, enhanced efficiency of the welding work of metallic compounds at the free formation of the weld in any spatial positions. 1 dwg