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High-cold-conduction low-quench niobium-tin superconducting coil and manufacturing method thereof

A technology of superconducting coil and niobium tritin, which is applied in superconducting magnet/coil, coil manufacturing, inductor/transformer/magnet manufacturing, etc., can solve the problem of poor cooling effect of niobium tritin superconducting coil, niobium tritin superconducting coil Problems such as thermal quench, reduce the risk of quench, improve the safety margin, and achieve the effect of low cost

Pending Publication Date: 2022-05-13
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

[0008] The purpose of the present invention is to overcome the problem of poor cooling effect of the niobium-three-tin superconducting coil in the prior art, and the delamination of the end coil and the skeleton after cooling and exciting the niobium-three-tin superconducting coil may cause the niobium-three-tin superconducting coil to generate heat Quenching problem, thus proposing a high-conductivity cold low-quenching niobium-three-tin superconducting coil and its manufacturing method

Method used

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  • High-cold-conduction low-quench niobium-tin superconducting coil and manufacturing method thereof
  • High-cold-conduction low-quench niobium-tin superconducting coil and manufacturing method thereof
  • High-cold-conduction low-quench niobium-tin superconducting coil and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] The skeleton core barrel 1 is passed through the two second end plates 3 , the second end plate 3 and the skeleton core barrel 1 are in a sliding fit, and the fit gap is 0.1mm. Pass the skeleton core bucket 1 through the two first end plates 2 respectively from both sides, fix the first end plate 2 and the second end plate 3 respectively from both sides, so that the first end plate 2 and the second end plate The plate 3 forms a gear fit, and the fit gap between the teeth is 1mm. When the two first end plates 2 are welded to the skeleton core barrel 1, the welding positions are the top surface and the bottom surface of the skeleton core barrel 1, the welding method is spot welding, and the number of welding points is 6. Then proceed to steps (4)-(8).

Embodiment 2

[0053] The skeleton core barrel 1 is passed through the two second end plates 3, and the 1 between the second end plate 3 and the skeleton core barrel is a sliding fit, and the fit gap is 0.02mm. Pass the skeleton core bucket 1 through the two first end plates 2 respectively from both sides, fix the first end plate 2 and the second end plate 3 respectively from both sides, so that the first end plate 2 and the second end plate The plate 3 forms a gear fit, and the fit gap between the teeth is 0.1mm. When the two first end plates 2 are welded to the skeleton core barrel 1, the welding positions are the top surface and the bottom surface of the skeleton core barrel 1, the welding method is spot welding, and the number of welding points is 3. Then proceed to steps (4)-(8).

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Abstract

The invention provides a high-cold-conduction low-quench niobium-tin superconducting coil and a manufacturing method thereof. The superconducting coil comprises a framework core barrel, a first end plate, a second end plate, an insulating layer, a Ni3Sn superconducting coil and a binding layer. The first end plate and the binding layer can achieve the purpose of conducting cold from the end face and the outer surface of the Nb3Sn superconducting coil in multiple directions, the contact area of the Nb3Sn superconducting coil is increased, the refrigerating efficiency of the Nb3Sn superconducting coil is improved, and the refrigerating capacity of the Nb3Sn superconducting coil is improved. Meanwhile, the first end plate can prevent the second end plate and the Nb3tin superconducting coil from moving towards the two sides in the axial direction and limit the second end plate and the Nb3tin superconducting coil, when the second end plate and the Nb3tin superconducting coil move towards the middle in the axial direction, the first end plate is separated from the second end plate, and the second end plate is separated from the Nb3tin superconducting coil. And friction heat generation in the Ni3Sn superconducting coil is reduced. According to the invention, the quenching probability of the Ni3Tin superconducting coil is reduced, and the safety margin of the Ni3Tin superconducting coil is improved.

Description

technical field [0001] The invention belongs to the field of superconducting magnets, and in particular relates to a high-conductivity, cold-low-distortion niobium-three-tin superconducting coil and a manufacturing method thereof. Background technique [0002] Nb3Sn superconducting material is a typical low-temperature superconducting material. The superconducting critical transition temperature of Nb3Sn superconducting material reaches above 18K, and the critical magnetic field reaches 25T in the liquid helium temperature region. At the same time, the Nb3Sn superconducting material has a high degree of engineering and has a relatively mature preparation process. Commonly used preparation processes include bronze method, inner tin method and powder casing method, and each method has its own manufacturers all over the world. Therefore, niobium-three-tin superconducting materials have broad application prospects and development prospects. [0003] The most widely used Nb3Sn ...

Claims

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Application Information

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IPC IPC(8): H01F6/06H01F6/04H01F41/04H01F41/06H01F41/12
CPCH01F6/06H01F6/04H01F41/048H01F41/06H01F41/125
Inventor 孙万硕王秋良程军胜戴银明胡新宁陈顺中王晖刘建华
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI