| 摘要 |
PURPOSE:To facilitate highly-precise fabrication of a superconductive coil by splitting its bobbin to a linear part and a circular part. CONSTITUTION:A linear part 161 and a circular part 162, which form a bobbin, are separately fabricated and then got together with clamping bolts 165, so coil's fabrication coil is easy. Particularly, the circular part 162 can be easily fabricated by a method wherein a full circle for the part 162 is produced with a lathe and then cut into the two, saving time for mechanical work and providing high precision of dimensions as well. Further, since build-up can be done with bolt tightening, no distortion as seen in welding arises and dimensional precision can be highly obtained. |
