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Enhanced Bi2212 stranded wire

A bi2212, enhanced technology, applied in the field of superconducting strands, can solve the problems of unsatisfactory mechanical properties and large AC loss, etc., and achieve the effect of facilitating the realization of large-scale projects, increasing mechanical properties, and reducing AC loss

Inactive Publication Date: 2020-02-21
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of reinforced Bi2212 stranded wire, to solve the problems that the mechanical properties of the Bi2212 round wire used for CICC armored conductors in the prior art cannot meet the requirements and the AC loss is large

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  • Enhanced Bi2212 stranded wire
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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0015] Such as figure 1 As shown, a reinforced Bi22...

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Abstract

The invention discloses an enhanced Bi2212 stranded wire, and the stranded wire comprises a Bi2212 round wire and a nickel-based alloy wrapping tape; the nickel-based alloy wrapping tape is spirally and tightly wound on the annular outer surface of the Bi2212 round wire, and the wrapping coverage rate of the nickel-based alloy wrapping tape does not exceed 80%. According to the invention, the nickel-based alloy wrapping tape is wound outside a common Bi2212 round wire, so the mechanical property of the Bi2212 stranded wire is improved while the superconductivity of the Bi2212 stranded wire isnot influenced, and the AC loss is reduced.

Description

technical field [0001] The invention relates to the field of superconducting strands in CICC armored conductors, in particular to a reinforced Bi2212 strand. Background technique [0002] CICC armored conductor (cable-in-conduit conductor) is internationally recognized as the preferred conductor for manufacturing large-scale superconducting magnet coils, because the coolant in the conductor of this structure directly contacts the cable in the form of fluid, and the wet surface area is large. The heat exchange efficiency is high, and the outer armor can provide support for the inner cable and improve the structural strength of the cable. CICC conductors have been widely used in accelerators, fusion reactors and other large scientific devices, such as the international cooperation ITER device under construction, the LHC device of CERN, and the W7-X device of Max Planck in Germany. [0003] At present, traditional Nb-based superconducting materials such as Nb3Sn and NbTi are s...

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Application Information

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IPC IPC(8): H01B12/02
CPCH01B12/02Y02E40/60
Inventor 毛哲华秦经刚杨东昇何宇翔周超戴超金环李建刚武玉陈俊凌
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI