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Manufacturing method for skeleton-free niobium-tri-tin superconducting coil

A technology for superconducting coils and manufacturing methods, applied in coil manufacturing, inductance/transformer/magnet manufacturing, electrical components, etc., capable of solving problems such as deformation of niobium-three-tin superconducting coils and reduction of total current density of niobium-three-tin superconducting coils , to achieve superior electrical insulation performance, excellent thermal stability, and reduce cooling capacity

Active Publication Date: 2019-03-29
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem of deformation of the niobium-three-tin superconducting coil wound by stainless steel framework in the prior art during long-term high-temperature heat treatment, and the problem that the framework itself will reduce the total current density of the niobium-three-tin superconducting coil, and The existing niobium-three-tin superconducting magnet skeleton has the problem of short-circuit hidden dangers, and a method for manufacturing a skeleton-free niobium-three-tin superconducting coil is proposed

Method used

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  • Manufacturing method for skeleton-free niobium-tri-tin superconducting coil
  • Manufacturing method for skeleton-free niobium-tri-tin superconducting coil
  • Manufacturing method for skeleton-free niobium-tri-tin superconducting coil

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Connect the cylindrical quartz tube 1 to the two-end plate flange 2, open a circular groove at the junction of the two-end plate flange 2 and the cylindrical quartz tube 1, and insert the cylindrical quartz tube 1 into the circular groove 10 . There is a through hole in the center of the flange 2 of the two end plates, and an M6 screw rod 6 is installed in the through hole. The flanges 2 of the two end plates are tangent to the inner surface of the cylindrical quartz tube 1 and each has a circle of through holes in the circumferential direction, and the number of through holes is three. Three through holes are installed with three M4 screw rods 7 for positioning and clamping, so that the center of the cylindrical quartz tube 1 and the flanges 2 of the end plates are aligned and tightly connected. Install the assembled quartz skeleton on the winding machine. Two layers of glass cloth 3 are wound around the outer surface of the cylindrical quartz tube in half. The wire...

Embodiment 2

[0038] The cylindrical quartz tube 4 is connected with the flanges 2 of the two ends through the annular grooves 10 on the flanges 2 of the two ends. Install a screw rod 6 at the flange center of the two end plates, and fix it with nuts at both ends. There is a through hole in the flange center of the two end plates, and an M20 screw rod 7 is installed in the through hole. The two end plates 2 and the inner surface of the cylindrical quartz tube 1 are respectively provided with a circle of through holes in the circumferential direction, and the number of the through holes is 6. Six M4 screw rods 7 are installed in the through holes for positioning and clamping, so that the center of the cylindrical quartz tube 1 and the flanges 2 of the end plates are aligned and tightly connected. Install the assembled quartz skeleton on the winding machine. Two layers of glass cloth 3 are wound around the outer surface of the cylindrical quartz tube in half. The wires are fed into the wir...

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Abstract

A manufacturing method for a skeleton-free niobium-tri-tin superconducting coil is disclosed. According to the method, a cylindrical quartz tube (1) and two end plate flanges (2) are assembled by nutfixation to be a skeleton for wrapping wires; a quartz skeleton is mounted on a winding machine to wind a niobium-tri-tin wire superconducting wire; when the wire is changed between layers, a layer ofglass wool cloth is laid on the surface of the upper layer of the niobium-tri-tin wire superconducting wire; after winding of a niobium-tri-tin superconducting coil (4) is completed, a wire is discharged at a wire outlet hole (9) of an end plate; the glass wool cloth is wrapped around the outermost layer of the niobium-tri-tin superconducting coil (4) in a half-lapping manner; then a binding layer (5) is wound around the outermost side; after the winding of the binding layer (5) is completed, the niobium-tri-tin superconducting coil equipped with tooling is placed in a vacuum heat treatment furnace for performing vacuum heat treatment and vacuum pressure impregnation, and finally an epoxy resin curing process is performed; and after the curing, the quartz tube (1) is removed to obtain theniobium-tri-tin superconducting coil (4) containing no skeleton.

Description

technical field [0001] The invention relates to a manufacturing method of a superconducting coil. Background technique [0002] The resistance of the superconducting wire is zero at a certain critical temperature. After the superconducting wire is wound into a superconducting coil, it can withstand a large current at the critical temperature, thereby generating a strong magnetic field. Based on this characteristic of superconducting coils, superconducting magnets can be designed and manufactured, and the number of layers and turns of superconducting coils can be designed according to the required magnetic field size and uniformity. A superconducting magnet is composed of superconducting coils of various shapes. The most common superconducting coil is a solenoid-shaped superconducting coil, in which a superconducting wire is wound on a cylindrical skeleton. Generally, superconducting magnets that generate strong magnetic fields are nested and combined with superconducting co...

Claims

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Application Information

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IPC IPC(8): H01F41/04H01F41/098H01F41/12
CPCH01F41/048H01F41/098H01F41/127
Inventor 孙万硕王秋良程军胜刘建华王磊孙金水刘辉王晖
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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