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A kind of superconductor cold-compression joining method

A joining method and superconductor technology, applied in conductors, welding equipment, non-electric welding equipment, etc., can solve the problems of loss of superconducting performance and low joint strength of high-temperature superconducting materials, etc.

Inactive Publication Date: 2016-03-02
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of low joint strength and loss of superconducting performance of high-temperature superconducting materials obtained by existing welding methods, and provides a superconductor cold-press bonding method

Method used

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  • A kind of superconductor cold-compression joining method

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specific Embodiment approach 1

[0012] Specific implementation mode one: as figure 1 As shown, a superconductor cold-compression bonding method in this embodiment is carried out according to the following steps:

[0013] 1. Pretreatment: grinding the end surfaces of two rod-shaped superconductors flat, and then polishing them to obtain the processed first rod-shaped superconductor 2, the second rod-shaped superconductor 12 and superconductor powder;

[0014] 2. The superconductor powder obtained in step 1 is made into a cake shape to obtain a cake-shaped superconductor 7;

[0015] 3. The first round bar-shaped superconductor 2 and the second round bar-shaped superconductor 12 processed in step 1 are horizontally arranged on the support 4 with the end faces facing each other, and the two end faces of the first round bar-shaped superconductor 2 and the second round bar-shaped superconductor 12 are opposite to each other. The disc-shaped superconductor 7 that step 2 obtains is arranged in parallel between them...

specific Embodiment approach 2

[0017] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the copper oxide high temperature superconductor is Bi 2 Sr 2 Ca 2 Cu 3 o 8 + X superconductor. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the iron-based high-temperature superconductor is SmFeAsO 1-x f x superconductor. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a superconductor cold pressing connecting method, relates to a superconductor connecting method, and belongs to the technical field of superconductor connecting. The superconductor cold pressing connecting method solves the problems that a high-temperature superconducting material obtained according to an existing welding method is low in strength and the superconducting performance is reduced. The superconductor cold pressing connecting method comprises the first step of rubbing down and polishing the end faces of two circular-bar-shaped superconductors, the second step of processing superconductor powder into a cake shape, and the third step of carrying out welding in an ice pressure welding mode. The superconductor cold pressing connecting method is used for connecting the superconductors.

Description

technical field [0001] The invention relates to a superconductor joining method, which belongs to the technical field of superconductor connection. Background technique [0002] Copper oxide, MgB 2 High-temperature ceramic superconducting materials such as high-temperature ceramic compounds and iron-based compounds have good application prospects in the national economy and defense industry. Current fabrication techniques cannot produce iron-based superconductors that are sufficiently large or long. One of the most effective solutions to the above-mentioned problems is to prepare the required large or long superconducting components by connecting ceramic parts with simple shapes and small sizes. [0003] In addition to obtaining sufficient joint strength and integrity for the connection of high-temperature ceramic superconducting materials, it is also necessary to ensure that the superconductivity of the joint is similar or the same as that of the base material, and it mus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/00
CPCB23K20/002B23K20/22B23K20/24B23K2101/38
Inventor 牛济泰徐斌宋丹路蔡勇
Owner SOUTHWEAT UNIV OF SCI & TECH
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