| 摘要 |
PCT No. PCT/JP89/00246 Sec. 371 Date Sep. 6, 1990 Sec. 102(e) Date Sep. 6, 1960 PCT Filed Mar. 8, 1989 PCT Pub. No. WO89/08931 PCT Pub. Date Sep. 21, 1989.A resistance welding method wherein a resistance welding between cells of others used in the manufacturing of a lead acid battery, is carried out by means of a constant power control system. There are provided a method and a circuit device (A) therefore to carry out at intervals of a predetermined cycle that a resistance value between the members (e), (e) to be welded is, while applied with a current, measured by a resistance measuring device (11). The measured value is then inputted to a constant power controller (13), and a current having a current value corresponding thereto is supplied to both the members (e), (e) for current application for welding, thereby performing a stable and good weld. In addition, an up slope controller (15) is incorporated in the weld resistance circuit device (A) so that the resistance welding is performed through a current application which is increased gradually from a small welding current amount for application to both the members (e), (e), thereby preventing the occurrence of sparks during the resistance welding. |
