| 摘要 |
PURPOSE:To eliminate axial nonalignment and tilt between an insulation cylinder and a seal-stop end plate by soldering them together under the condition that the-stop end plate is in contact with the cylinder at wavy portions. CONSTITUTION:A soldering means is provided in the circumferential direction of a seal-stop end plate 2 between an insulation cylinder 1 and the plate 2. At least three waviness portions 11 are provided for the contact between the cylinder 1 and the plate 2. The plate 2 and the cylinder 1 are assembled with contacts at the waviness portions 11 and with gaps G. A metallic solder 12 formed in a ring shape is placed inside the seal-stop end plate 2, they are placed in a vacuum oven and air is discharged to bring the oven to a high vacuum, and to a high temperature to melt the metallic solder 12, and the gaps are filled with the solder utilizing capillary action and surface tension. This prevents axial nonalignment and tilt at the time of seal-stopping. |
