| 摘要 |
PURPOSE:To provide an inexpensive and mechanically strong superconducting coil by disposing a spacer for a cooling channel among winding layers and performing winding, and thereafter performing a high temperature heat treatment for production of a superconducting material, and further impregnating a resulting winding with epoxy resin. CONSTITUTION:A compound superconducting wire 2 is wound to yield a superconducting coil 1 by a wind-and-react method. A spacer 11 for a cooling channel to construct the coiling channel is arranged among winding layers of the superconducting coil 1. A spacer 11 structure is constructed with an insulating material 12 formed by knitting into a bag shape heat resistant fibers, e.g. ceramics aluminum fibers and with a metal piece 13 comprising stainless steel for example inserted into the interior of the insulating material 12 for resisting a high temperature heat treatment and reinforcing the spacer. The spacer 11 is disposed among the winding layers and winding is performed, and thereafter the high temperature heat treatment is performed to produce a superconducting material. Thereafter, the resulting coil is impregnated with epoxy resin 14. Hereby, the inexpensive and mechanically strong superconducting coil 1 is yielded. |
