| 摘要 |
PROBLEM TO BE SOLVED: To prolong the continuous operating time of a welding machine by performing cooling of a welding torch and a nozzle with spouting gas cooled at≤0°C, and preventing the sticking of spattering easily stuck caused by rising of the temperature. SOLUTION: In the torch for gas shielded welding machine performing arc welding under shielded gas atmosphere with a welding wire continuously supplied, a welding chip for supporting the welding wire, the nozzle for supplying the shielded gas to the welding part, a low temperature air generator for generating the cooling air by cooling the compressed air having 0.4-0.6 MPa and≥70 l/min and a cooling air supplying passage for supplying the cooling air generated with the low temperature air generator into the distal end part of the welding tip, are peculiarly provided. COPYRIGHT: (C)2004,JPO&NCIPI
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