| 摘要 |
An electrode for welding in which a guide pin (106) inserted in a guide hole (102) of the electrode is movable forward and backward. The electrode is composed of a large-diameter portion (109) sliding in the guide hole (102) and a small-diameter portion (107) protruding from the electrode and that air blows out from the outer circumference of the guide pin (106) as the guide pin (106) is pushed in, characterized in that the guide hole (102) through which passes the small-diameter portion (107) is composed of a large-diameter hole (133) and a small-diameter hole (134) and that a discharge passage (136) communicating between the large-diameter hole (134) and the outside of the electrode is formed in the electrode. <IMAGE> <IMAGE>
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