| 摘要 |
PURPOSE:To prevent failure of electronic parts and electrodes owing to projection of a lead wire from an insertion port in the stage of joining the base and cap of the electronic parts by resistance welding by supplying an inert gas to the insertion port for the lead wire and welding the electronic parts after confirming that a high pressure is attained in the insertion port. CONSTITUTION:A cap 5 is inserted into the cap insertion port 6 of an electrode 1 while the welding points of electronic parts 5, 6 are brought into contact with each other. Then an electrode 2 moves toward the electrode 1 or the electrode 1 toward the electrode 2 and a lead wire 8 is inserted into an insertion port 7 for the lead wire of the electrode 2 by which the electrodes 1, 2 are brought into contact with each other via the parts 4, 5. A pad 9 contacts with the other end of the port 7 and an inert gas is supplied into the port 7 to maintain a high pressure in the port 7. Pressure is exerted to the parts 4, 5 by the electrfodes 1, 2 and said parts are resistance-welded after the presence of the high pressure in the inlet 7 is confirmed by a pressure switch 13. |
