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    PRECURSOR WIRE FOR COMPOUND SUPERCONDUCTING WIRE, COMPOUND SUPERCONDUCTING WIRE, AND REWINDING METHOD FOR COMPOUND SUPERCONDUCTING WIRE
    1.
    发明公开
    PRECURSOR WIRE FOR COMPOUND SUPERCONDUCTING WIRE, COMPOUND SUPERCONDUCTING WIRE, AND REWINDING METHOD FOR COMPOUND SUPERCONDUCTING WIRE 审中-实审

    公开(公告)号：EP4383281A1

    公开(公告)日：2024-06-12

    申请号：EP22853144.8

    申请日：2022-08-04

    申请人： FURUKAWA ELECTRIC CO., LTD.

    发明人： SUGIMOTO, Masahiro ,  FUKUSHIMA, Hiroyuki ,  HIROSE, Kiyoshige ,  ASAMI, Daisuke

    IPC分类号： H01B12/10 ,  H01B13/00

    CPC分类号： Y02E40/60 ,  H01B12/10 ,  H01B13/00

    摘要： A precursor wire for compound superconducting wire includes: a compound superconducting precursor member configured by compound superconducting precursor filaments, and a first matrix precursor embedding the compound superconducting precursor filaments and including a first stabilizing material; a reinforcing member arranged at the outer circumferential side of the compound superconducting precursor member, and configured by reinforcing filaments, and a second matrix embedding the reinforcing filaments and including a second stabilizing material; and a cylindrical stabilizing member arranged to at least one of the inner circumferential side or outer circumferential side of the reinforcing member, and consisting of a third stabilizing material, in which an aspect ratio Ab1 (Wb1/Tb1) of a width dimension Wb1 relative to a thickness dimension Tb1 of the compound superconducting precursor member in a cross section perpendicular to a longitudinal direction of the compound superconducting precursor member is 1.80 or more.

    PRECURSOR USED FOR MANUFACTURING SUPERCONDUCTIVE WIRE ROD, METHOD FOR MANUFACTURING PRECURSOR, AND SUPERCONDUCTIVE WIRE ROD
    4.
    发明公开
    PRECURSOR USED FOR MANUFACTURING SUPERCONDUCTIVE WIRE ROD, METHOD FOR MANUFACTURING PRECURSOR, AND SUPERCONDUCTIVE WIRE ROD 审中-公开

    公开(公告)号：EP3879541A1

    公开(公告)日：2021-09-15

    申请号：EP19882072.2

    申请日：2019-10-25

    申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)

    发明人： KAWASHIMA, Shinya ,  KAWARADA, Takao

    IPC分类号： H01B13/00 ,  H01B12/10 ,  H01F6/06 ,  C22C13/00

    摘要： A precursor of an aspect of the present invention is a drawn wire product of a composite pipe, the composite pipe having: a composite wire group; a barrier layer; and a protective layer, wherein the composite wire group has: a plurality of tin wires each having at least one tin core being made of tin or a tin alloy, and a copper matrix which surrounds the at least one tin core; and a plurality of niobium wires each having a plurality of niobium cores being made of niobium or a niobium alloy, and a copper matrix which surrounds the plurality of niobium cores, the plurality of niobium wires being disposed such that each of the tin wires is surrounded by the niobium wires, the composite wire group contains titanium, and a content of titanium is greater than or equal to 0.38% by mass and less than or equal to 0.55% by mass, and in a cross-sectional view, centers of gravity of cross-sectional regions of respective tin linear bodies resulting from the plurality of tin wires are positioned to form a substantially planar lattice, and an average distance from a center of gravity of a unit cell forming the substantially planar lattice to each center of gravity of the cross-sectional region of each of the tin linear bodies on lattice points of the unit cell is greater than or equal to 30 µm and less than or equal to 50 µm.

    INSULATION COATING COMPOUND SUPERCONDUCTING WIRE AND REWINDING METHOD THEREOF
    5.
    发明公开
    INSULATION COATING COMPOUND SUPERCONDUCTING WIRE AND REWINDING METHOD THEREOF 审中-公开

    公开(公告)号：EP3859755A1

    公开(公告)日：2021-08-04

    申请号：EP19867242.0

    申请日：2019-09-20

    申请人： FURUKAWA ELECTRIC CO., LTD.

    发明人： SUGIMOTO, Masahiro ,  TSUBOUCHI, Hirokazu ,  KATAYAMA, Kota ,  II, Hideki

    IPC分类号： H01B12/10 ,  H01F6/06

    摘要： The present invention provides: an insulation-coated compound superconducting wire which has excellent superconducting characteristics, exhibits a tensile strength equal to or larger than that of the conventional compound superconducting wire at both room temperature and extremely low temperature, also has excellent winding property, and enables a superconducting coil to be commercially produced; and a rewinding method thereof. The insulation-coated compound superconducting wire 1 according to the present invention includes: a compound superconducting wire 10 having a compound superconducting part 11 which includes a first matrix 16 and a plurality of compound superconducting filaments 15 containing compound superconducting phases, a reinforcing part 12 which is disposed on the outer circumferential side of the compound superconducting part 11 and includes a plurality of reinforced filaments 18, a second matrix 19 and a second stabilizing material 20, and a stabilizing part 13 which is disposed on at least one side among the inner circumferential side and the outer circumferential side of the reinforcing part 12; and an electrical insulation part 30 which covers the outer circumferential surface of the compound superconducting wire 10, in which the insulation-coated compound superconducting wire 1 has a critical current value (Ic) larger than that of the compound superconducting wire 10 before being covered with the electrical insulation part 30.