A kind of manufacturing method of bi-2212 superconducting wire sealing head
A technology of bi-2212 and production method, which is applied in the usage of superconducting elements, superconducting devices, superconducting/high-conducting conductors, etc., and can solve the problem that the terminal is in a low temperature area, etc.
Active Publication Date: 2021-04-20
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to provide a method for making a Bi-2212 superconducting wire head, so as to form a head at the end of the Bi-2212 superconducting wire, so as to solve the problem that the end of the Bi-2212 superconducting wire needs to be in a low temperature zone when heat treatment is performed in the prior art. question
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0031] Such as figure 1 Shown, a kind of Bi-2212 superconducting wire sealing head manufacturing method comprises the following steps:
[0032] (1), such as figure 1 As shown, a rectangular silver-based alloy sheet 1 is prepared to keep the silver-based alloy sheet 1 flat, and the aspect ratio of the rectangular silver-based alloy sheet is greater than 3, specifically: length>15mm; width>5mm, thickness>0.2mm Wipe the surface of the silver-based alloy sheet 1 to remove stains; the sheet can be silver No. 1 of national standard.
[0033] (2), such as figure 1 As shown, assume that the two long sides of the silver-based alloy sheet 1 are long side A and long side B respectively, and starting from the middle position of one long side A of the silver-based alloy sheet 1, a gap 2 is opened in the silver-based alloy sheet 1 , the gap 2 is parallel to the w...
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
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for manufacturing a Bi‑2212 superconducting wire head, comprising the following steps: (1), preparing a rectangular silver-based alloy sheet; (2), opening a gap in the silver-based alloy sheet; (3), placing The end of the Bi-2212 superconducting wire is placed on the silver-based alloy sheet; (4), the silver-based alloy sheet is rolled up along the width direction, so that the silver-based alloy sheet completely wraps the end of the Bi-2212 superconducting wire; (5), Compressing the Bi-2212 superconducting wire ends wrapped with silver-based alloy flakes; (6), heating the silver-based alloy flakes that are not wrapped with Bi-2212 superconducting wire ends on the other side of the heating gap, forming a sealing head after melting; (7) ), heating the silver-based alloy sheet and the Bi-2212 superconducting wire terminal joint position. The invention solves the problem that the end of the Bi-2212 superconducting wire cannot be sealed.
Description
technical field [0001] The invention relates to the field of superconducting wire processing methods, in particular to a method for manufacturing a Bi-2212 superconducting wire head. Background technique [0002] At present, among the existing and under construction superconducting tokamaks in the world, the ITER device has the highest plasma central field intensity. The highest transient field in the operation of the tube has reached 13T, which is close to the performance limit of Nb3Sn, which has the highest critical field among low-temperature superconducting materials. [0003] In the future, DEMO and commercial reactors will put forward higher requirements for the magnetic field strength and maintenance time of superconducting magnets. In order to meet such a high magnetic field strength, it is necessary to produce a magnetic field > 15T, a current > 45kA, and stable performance requirements after 10,000 electromagnetic cycles. of superconducting magnets. Howeve...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01B12/00
CPCH01B12/00Y02E40/60
Inventor 杨东昇秦经刚李建刚刘方金环毛哲华周超武玉陈俊凌
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI