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公开(公告)号：US12211642B2
公开(公告)日：2025-01-28
申请号：US17777563
申请日：2020-11-18
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yonghoon Kim , Hideki Ii , Takumi Sato , Daisuke Asami , Masahiro Sugimoto , Hirokazu Tsubouchi
Abstract: The superconducting coil includes: a winding frame; and at least two superconducting rectangular wire layers provided in such a manner that a superconducting rectangular wire is spirally wound on an outer surface of the frame such that wires adjacent to each other in an axial direction of the frame are arranged side by side and separated, the wire including an NbTi-based or Nb3Sn-based wire having a surface coated with copper or copper alloy, in which at least a thermoplastic fusible resin is provided in a separated section between the adjacent wires, and when viewed in a cross section including an axis of the frame, at least one of voids that are partitionable on outer surfaces of a total of three wires and a total of four wires located on the two adjacent layers and adjacent to each other are 4% or less in terms of a void ratio (V1).
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