| 摘要 |
PURPOSE:To perform the resistance butt welding on both works by chucking and pressing a first linear work on which the insulating coating is performed and applying an electric current thereto to form swelling parts on both ends of the first work and abutting a second linear work on the same axis to apply the current to between both the works. CONSTITUTION:A Dumet wire 50 is sandwiched between a first electrode 52 and a second electrode 54. Then, a third electrode 60 and a forth electrode 62 are abutted on both ends of the Dumet wire 50. Next, when the prescribed current is applied to between the third electrode 60 and the forth electrode 62, the Dumet wire 50 generates the heat and is pressed in the arrow directions in the figure by actions of coil springs 64 and 66 to form the swelling parts 70a and 70b on both the ends of the Dumet wire 50. Next, a first lead wire 72 is abutted on the same axis as the Dumet wire 50. The first lead wire 72 is sandwiched between a fifth electrode 74 and a sixth electrode 76 and the first lead wire 72 is pressed in the direction of the Dumet wire 50 by a coil spring 80 and the prescribed currents are applied to between the fifth electrode 74 and the sixth electrode 76, and between the first electrode 52 and the second electrode 54 and both the wires 50 and 72 are subjected to the resistance butt welding.
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