Title:
COMPOUND SUPERCONDUCTING TWISTED WIRE AND REWINDING METHOD FOR COMPOUND SUPERCONDUCTING TWISTED WIRE
Document Type and Number:
WIPO Patent Application WO/2020/066908
Kind Code:
A1
Abstract:
The present invention provides a compound superconducting twisted wire that has the same or greater strength with respect to pulling as a conventional compound superconducting twisted wire, and for which there is non-adhesion or improved ease of separation after adhesion between compound superconducting element wires, and a rewinding method for said compound superconducting twisted wire. This compound superconducting twisted wire 1 of the present invention is configured as a twisted structure in which a plurality of compound superconducting element wires 10 have been twisted, said compound superconducting twisted wire 1 comprising: a compound superconducting body 11 that is configured of a plurality of compound superconducting filaments 15 that include a compound superconducting phase and a first matrix 16, a reinforcement member 12 that is placed on the outer circumference side of the compound superconducting body and is configured of a plurality of reinforcement filaments 18 and a second matrix 19, and a stabilizing member 13 that is placed at least at one of the inner circumference side and the outer circumference side of the reinforcement member, the volume ratio of the reinforcement member to the compound superconducting element wire being greater than the volume ratio of the compound superconducting body, and the surface of the compound superconducting element wire being provided with a metal layer 20 for preventing thermal fusion between compound superconducting element wires, said metal layer measuring 2 µm or less in thickness.
Inventors:
SUGIMOTO MASAHIRO (JP)
TSUBOUCHI HIROKAZU (JP)
ASAMI DAISUKE (JP)
II HIDEKI (JP)
AWAJI SATOSHI (JP)
OGURO HIDETOSHI (JP)
TSUBOUCHI HIROKAZU (JP)
ASAMI DAISUKE (JP)
II HIDEKI (JP)
AWAJI SATOSHI (JP)
OGURO HIDETOSHI (JP)
Application Number:
PCT/JP2019/037012
Publication Date:
April 02, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
UNIV TOHOKU (JP)
TOKAI UNIV EDUCATIONAL SYSTEM (JP)
UNIV TOHOKU (JP)
TOKAI UNIV EDUCATIONAL SYSTEM (JP)
International Classes:
H01B12/08; H01B13/00; H01F6/06
Domestic Patent References:
| WO2013154187A1 | 2013-10-17 |
Foreign References:
| JP2017517899A | 2017-06-29 | |||
| JPS5718171B2 | 1982-04-15 |
Other References:
M. SUGIMOTO: "IEEE Trans. Appl. Super.", vol. 25, 2015, IEEE, article "Development of Nb-Rod-Method Cu-Nb Reinforced Nb Sn Rutherford Cables for React-and-Wind Processed Wide-Bore High Magnetic Field Coils", pages: 6000605
Attorney, Agent or Firm:
SAITO Takuya et al. (JP)
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