Abstract: A torch for gas-shielded arc welding in a deep narrow groove comprises a current contact torch bit (1) with an electrode (2) and a nozzle for supplying the shielding gas to the welding zone, which communicates with a gas-feeding tube (4) and is provided with at least one row of horizontally arranged holes (5). The nozzle is a closed chamber (3) made as a symmetrical wedge whose sharp edge faces the electrode (2) and is in one plane with the axis thereof. The side walls and bottom of the chamber (3) feature at least one additional row of holes (6) whose axes lie in one plane approximately perpendicular to the walls (7) of the groove.The torch is designed primarily for welding of very thick workpieces.
Type:
Grant
Filed:
July 12, 1982
Date of Patent:
January 22, 1985
Assignee:
Nauchno-Proizvodstvennoe Obiedinenie Po Tekhnologii Mashinostroenia (NPO Tsniitmash)
Inventors:
Viktor V. Sidorov, Efim Y. Tselniker, Evgeny P. Sidorov, Leonid V. Sukhov, Vyacheslav F. Gorb, Gennady M. Bairakovsky