Multi-strand superconducting metal wire joint structure

Abstract

The invention provides a multi-strand superconducting metal wire joint structure, which comprises a wiring post, a positioning knob, a superconducting wire, a fixed knob and a wiring frame, wherein the wiring post is of a stepped rod-shaped structure; one step of the wiring post is provided with a groove; the superconducting wire is arranged in the groove; the wiring post is arranged on the wiringframe in a penetrating manner; the positioning knob and the fixed knob are arranged at the two ends of the wiring post respectively; the fixed knob is used for fixing the wiring post on the wiring frame. According to the multi-strand superconducting metal wire joint structure provided by the invention, multiple strands of superconducting wires or non-superconducting wires can be connected, the joint structure can be used as a heat sink to prevent the superconducting wire from quench caused by heating of the non-superconducting wire, the joint structure has a simple structure and can adapt tovarious superconducting materials at the same time, the joint is detachable, the superconducting metal wire of the joint part is not damaged in the joint manufacturing process, and the joint structurecan be repeatedly used.

Description

technical field [0001] The invention relates to the technical field of superconducting joints, in particular to a multi-strand superconducting metal wire joint structure. Background technique [0002] A reliable, high-strength, low-resistance wire joint is a necessary structure for a superconducting circuit that needs to maintain a constant current. The quality of the superconducting wire joint is related to the critical current and magnetic field stability of the superconducting circuit. It is necessary to strictly ensure the electrical performance and mechanical properties. At the same time, superconducting wire joints often need to be fabricated on-site in the experimental device, and the operating space is limited. [0003] Common for high temperature superconductors and NbTi, NB 3 The superconducting joints of low-temperature superconductors such as Sn can be made by brazing, cold pressure welding, diffusion welding, fusion welding, sintering, etc., but for supercondu...

AI Technical Summary

Problems solved by technology

Superconducting wire-non-superconducting wire joints are also common. When the non-superconducting wire is energized, the resistance generates Joule heat, which may cause the quenching of the superconducting niobium wire, resulting in rapid dissipation of the current in the superconducting loop.

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