| 摘要 |
PURPOSE:To prevent the damage of a piston part and packing on an account of an arch by constitute the direct electric flow through resistance weld cables between a mounting block and a edge of an electrode stick and contacting the specified position of the edge side of an electrode stick with a mounting block. CONSTITUTION:The specified position of the edge side of an electrode stick 14... is connected with a mounting block 15 as an electrode by a resistance weld cable 53. The electric current flows directly from the mounting block 15... to the edge of an electrode stick 14.... Therefore an occurrence of an arch is prevented at the part of a V packing 56 of a piston part 31 and a piston part 31 and the V packing 56 is not damaged on an account of an arch. |
