| 摘要 |
PURPOSE:To realize compactness by manufacturing a coil while restraining bending strain at a specified value or less when manufacturing a superconducting coil by React & Wind method by using Nb3Al or Nb3(Al-Y) superconductive wire which is manufactured by a jelly roll method. CONSTITUTION:Nb3Al or NB3(Al-Y) compound wire (Y is an element constituting Nb alloy or Al alloy.) is manufactured by lap-winding a first sheet of pure Nb and Nb alloy sheets and a second sheet of pure Al and Al alloy sheets. Then, the wire is heat treated to generate Nb3Al or Nb3(Al-Y) compound and to manufacture Nb3Al or Nb3(Al-Y) superconductive wire. Then, the superconductive wire manufactured by heat treatment is wound at bending strain of 1% [bending strain (%) = (line diameter divided by bending diameter) X100] or less. Thereby, it is possible to manufacture a superconducting coil which enables high magnetic field generation. |
