| 摘要 |
PURPOSE:To prevent the deformation and wire disconnection of the title superconducting coil and to obtain the coil having excellent high critical current density by a method wherein a superconducting-oxide-powder-filled Ag composite wire is used for the coil, the coil is inserted into a cylindrical container together with a pressure medium, and the coil is explosion-compressed using an explosive. CONSTITUTION:Even number of large diameter cylinders 1 and small diameter cylinders 2, having different diameters respectively, are provided on the manufacturing device of a superconducting coil, said even number of cylinders 1 and 2 are vertically erected concentrically, and as a result, a plurality of gaps are formed between the inner surface and the outer surface of the cylinders 1 and 2. An explosive 6, a superconducting-oxide- filled coil 3, on which a superconducting-oxide-powder-filled Ag composite wire is wound, and a pressure medium 4 are filled up alternately into the above-mentioned plurality of gaps, and the explosive 6 is arranged on the inside of the cylinder having the smallest diameter and on the outside of the cylinder having the largest diameter among the even number of cylinders 1 and 2. By exploding said explosive 6 using a triggering device 7, the coil 3 is explosion-compressed and it is brought into the state of high density, and the high density coil is heat-treated in the atmospheric air or in an oxygen atmosphere. |
