| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a welding torch with which accumulation of dust such as chips and oil on the inside of a wire insertion hole is prevented, welding work is stably performed and which are excellent in maintenance property and cost performance, and to provide a ceramic guide used for the same. <P>SOLUTION: The welding torch 10 includes: a contact tip 11 for feeding welding power, composed of a conductive member on the cylindrical part of which the wire insertion hole 12 for a welding wire W to be fed is arranged; the ceramic guide 22 which is arranged on the front end side of the contact tip for feeding the welding power and has a ceramic guide hole 22a through which the welding wire is inserted; and a tip cover 13 which covers the contact tip for feeding welding power and the ceramic guide. The cross-sectional shape of the ceramic guide hole of the ceramic guide when cutting it at a plane perpendicular to the axial line 22j, is formed into a non-circular shape through which the welding wire is inserted. <P>COPYRIGHT: (C)2012,JPO&INPIT |
