| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for manufacturing a hermetically sealed container, a device that can flow a stable welding current. SOLUTION: The manufacturing device has an upper electrode sheath 1 and a plurality of lower electrode sheathes 2 each equipped with a sealed electrode. When a component comprising a heremetically sealed container is thrown in the lower electrode sheath 2, the upper electrode sheath 1 descends to form an airtight space with the lower electrode sheath 2. The upper and lower welding electrodes 3A, 3B of a welding equipment 3 each come into contact with the upper and lower electrode sheaths, with a welding current flowing from the welding equipment 3 to constitute the hermetically sealed container. The upper welding electrode 3A and a first sealed electrode are electrically connected with a conductor 13 to bypass the welding current to the conductor 13. Since the welding current is shunted through the upper welding electrode 3A, the first sealed electrode and the conductor 13, heat generation is reduced on the contact face between the electrodes. Hence, the formation of an insulating film such as an oxide film can be suppressed on the surface of both electrodes, stabilizing the welding current flowing between them. A time needed for heat radiation of the electrodes is also reduced to improve work efficiency. COPYRIGHT: (C)2003,JPO |
