PURPOSE: To obtain necessary strength and the excellent quality of superconduction by making the number of element wires of a primary strand more than five and the core of the strand hollow.
CONSTITUTION: By tying up in a strand more than five superconductive element wires 3 to make a strand, making a primary strand 5 with a hollow core part 10 in its center and molding this primary strand 5 with hollow core around a reinforcing tape 8, a superconductive wire 9 is made. As its core is made hollow in such a way, cooling becomes not enough because of existence of the core and its role as a heating part is not only deleted but cooling is promoted and heating thereon is prevented because a refrigerant can be supplied to this part. This process enables stable operation in pulses or alternating current and even if a reinforcing wire is omitted, it is possible to maintain necessary strength as an excellent superconductive wire in a way to use a reinforcing tape 8 or the like.
MATSUMOTO KANAME
TSUNODA YOSHIKI
| JPS4982295A | 1974-08-08 | |||
| JPS51674A | 1976-01-06 | |||
| JPS63291312A | 1988-11-29 |
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