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Preparation process of circular cross-section conductor with superconductive strip stacked structure

A superconducting tape, circular cross-section technology, applied in superconducting/high-conducting conductors, usage of superconducting elements, superconducting devices, etc., to achieve the effect of improving mechanical and thermal stability

Pending Publication Date: 2022-08-05
合肥曦合超导科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its flat structural characteristics, it is different from the current NbTi and Nb 3 The superconducting cable technology based on Sn strands is incompatible, so how to obtain a circular cross-section superconducting conductor with high mechanical properties and strong thermal stability is the main technical bottleneck restricting its development to high-current and high-field magnets

Method used

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  • Preparation process of circular cross-section conductor with superconductive strip stacked structure
  • Preparation process of circular cross-section conductor with superconductive strip stacked structure
  • Preparation process of circular cross-section conductor with superconductive strip stacked structure

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Embodiment Construction

[0030] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the following combination figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 The specific implementation of the present invention will be further described.

[0031] like figure 1 As shown, the present invention provides a process for preparing a circular cross-section conductor with a stacked structure of high-temperature superconducting tapes, which mainly includes superconducting tapes tin plating, stacking, and forming processes such as grooves, twisting, welding, and grinding, and specifically includes the following steps :

[0032] Step 1. Tin plating on the surface of the superconducting tape: a method of immersing in a tin bath with a temperature controlled within 200°C, and using a polytetrafluoroethylene gasket to scrape the surface of the tape soaked in molten tin at a speed of 1 meter per second , to obtain a uniform tin layer on t...

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Abstract

The invention discloses a preparation process of a circular-section conductor of a superconducting tape stacked structure, which is characterized in that manufacturing operations such as tinning, stacking, groove entering, twisting, welding, polishing and shape correcting are carried out on the basis of a high-temperature superconducting tape, and transition from the high-temperature superconducting tape structure to a multipurpose circular section is realized. The mechanical and thermal stability of the superconductor is improved, the preparation of a long conductor is easy to realize, and the method has important engineering application value for the industrial preparation of the high-temperature superconductor.

Description

technical field [0001] The invention relates to the technical field of superconducting magnets, in particular to a process for preparing a circular section conductor of a superconducting tape stack structure. Background technique [0002] Because REBCO (second-generation high-temperature superconducting coated conductor) conductors have the advantages of high mechanical strength and strong upper critical magnetic field, it is the most potential superconducting material for future high-field magnets. However, due to its flat structure, it is different from the current NbTi and Nb 3 The Sn-strand-based superconducting cable technology is not compatible, so how to obtain a circular-section superconducting conductor with high mechanical properties and strong thermal stability is the main technical bottleneck restricting its development to high-current, high-field magnets. Stacked high-temperature superconducting conductors are currently the most promising superconducting conduc...

Claims

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Application Information

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IPC IPC(8): H01B12/02
CPCH01B12/02Y02E40/60
Inventor 施毅刘啸马红军张新涛任伟聪金环刘方刘华军秦经刚周超
Owner 合肥曦合超导科技有限公司