| 摘要 |
PROBLEM TO BE SOLVED: To provide a resistance welder for coated conductor which is suitable for a work having a large number of contacts without generating useless consumables. SOLUTION: This resistance welder for coated conductor is provided with a thermal electrode part 12 which has a heating mechanism 11 for stripping a coating 1a by fusion, an electrode part 13 arranged at a naked conductor 2, a welding circuit 14 arranged so as to apply a welding current Iw between both electrodes 12, 13, a heating circuit 15 arranged so as to apply a heating current Ih to the heating mechanism 11, a current detecting means (toroidal coil 16) which detects that the coating 1a is stripped by fusion and the welding current Iw starts to flow, a switch 17 which switches the heating circuit 15 and a control means 18 which controls the switch 17 so as to intercept a current which branches from the welding circuit 14 to the heating circuit 15. |
