Unlock instant, AI-driven research and patent intelligence for your innovation.

A low-resistance niobium-three-tin superconducting wire joint and its manufacturing method

A superconducting wire, niobium-three-tin technology, applied in the field of superconducting wires, can solve the problems of harsh processing environment requirements, difficulty in ensuring production yield, high risk of magnet production, etc.

Active Publication Date: 2021-08-20
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two production processes are relatively complicated, and the requirements for the processing environment are relatively strict. At the same time, the production risk of the magnet is high, it is not suitable for ordinary workers to operate, and it is difficult to guarantee the production yield. It is difficult to use in actual engineering. Therefore, the superconducting magnet niobium The complexity of making tin joints directly affects the development and application of high-field superconducting magnets

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A low-resistance niobium-three-tin superconducting wire joint and its manufacturing method
  • A low-resistance niobium-three-tin superconducting wire joint and its manufacturing method
  • A low-resistance niobium-three-tin superconducting wire joint and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Follow the steps below to make a low-resistance niobium-three-tin superconducting wire joint:

[0079] Step 1, the positioning block 1 is connected and fixed on the coil bobbin end plate 13 through at least two fixing screws 2, and the stainless steel groove 15 is horizontally connected to the support frame 7 through the threaded connector 14;

[0080] Step 2, extract the niobium-three-tin superconducting wire 10 from the skeleton, pass its taps through the second lead-out hole, the first lead-out hole and each insulating ceramic column 6 in turn, and then each insulating ceramic column 6 is sequentially supported by the magnetic support tube 5 The front port is fed into the magnetic support tube 5, and the tapped end of the niobium-three-tin superconducting wire 10 is drawn out from the end port of the magnetic support tube 5 and fixed in the stainless steel tank 15;

[0081] Step 3, in the stainless steel tank 15, according to the wire composition ratio and production...

Embodiment 2

[0088] Follow the steps below to make a low-resistance niobium-three-tin superconducting wire joint:

[0089] Step 1, the positioning block 1 is connected and fixed on the coil bobbin end plate 13 through at least two fixing screws 2, and the stainless steel groove 15 is horizontally connected to the support frame 7 through the threaded connector 14;

[0090] Step 2, extract the niobium-three-tin superconducting wire 10 from the skeleton, pass its taps through the second lead-out hole, the first lead-out hole and each insulating ceramic column 6 in turn, and then each insulating ceramic column 6 is sequentially supported by the magnetic support tube 5 The front port is fed into the magnetic support tube 5, and the tapped end of the niobium-three-tin superconducting wire 10 is drawn out from the end port of the magnetic support tube 5 and fixed in the stainless steel tank 15;

[0091] Step 3, in the stainless steel tank 15, according to the wire composition ratio and production...

Embodiment 3

[0098] Follow the steps below to make a low-resistance niobium-three-tin superconducting wire joint:

[0099] Step 1, the positioning block 1 is connected and fixed on the coil bobbin end plate 13 through at least two fixing screws 2, and the stainless steel groove 15 is horizontally connected to the support frame 7 through the threaded connector 14;

[0100] Step 2, extract the niobium-three-tin superconducting wire 10 from the skeleton, pass its taps through the second lead-out hole, the first lead-out hole and each insulating ceramic column 6 in turn, and then each insulating ceramic column 6 is sequentially supported by the magnetic support tube 5 The front port is fed into the magnetic support tube 5, and the tapped end of the niobium-three-tin superconducting wire 10 is drawn out from the end port of the magnetic support tube 5 and fixed in the stainless steel tank 15;

[0101] Step 3, in the stainless steel tank 15, according to the wire composition ratio and production...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
critical temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-resistance niobium-three-tin superconducting wire joint and a manufacturing method thereof, and relates to the technical field of superconducting wires. For the overall structure, lead-bismuth alloy layer is arranged on the outer surface of the niobium-sn-tin superconducting wire tap and the niobium-titanium superconducting wire end, and the superconducting joint is made of Wood alloy potting and welding. In the present invention, the tap of the niobium-three-tin superconducting wire and the end of the niobium-titanium superconducting wire are potted and welded with solder in the oxygen-free copper tank, thereby increasing the volume of the stable matrix, enabling the connection to have a sufficiently large contact area, and reducing the resistance of the joint. The working stability of the superconducting wire joint is guaranteed. The structure of the coil frame end plate, positioning block, magnetic support tube, insulating ceramic column, support frame and oxygen-free copper tank is fixed and integrated, so that the superconducting wire joint has the maximum stability in terms of structural force and movement. At the same time, the structure protects and fixes the niobium-three-tin superconducting wire, effectively preventing damage to the niobium-three-tin superconducting wire.

Description

technical field [0001] The invention relates to the technical field of superconducting wires, in particular to a joint structure for a low-resistance niobium-three-tin superconducting wire and a manufacturing method thereof. Background technique [0002] Nb3Sn is a typical intermetallic compound with high critical temperature and critical magnetic field due to its unique vigilant structure of A15 phase. The critical temperature of niobium tritin is 18.2K, and its critical magnetic field can reach 24.5T at a temperature of 4.2K. It is a superconductor especially suitable for generating high magnetic fields. At present, Nb3Sn superconducting wire is widely used in the magnetic field of 10T to 20T, Nb3Sn is also widely used in high magnetic field superconducting magnets at home and abroad. [0003] The joint quality of niobium-three-tin superconducting wire directly affects the working stability and reliability of superconducting magnets. Superconducting magnets have relative...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01F6/06H01F41/10
CPCH01F6/06H01F6/065H01F41/10
Inventor 朱思华郭永超朱徐来谭运飞丁杭伟陈文革陈治友
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI