Multilayer sleeve type superconducting magnet and manufacturing method thereof

Abstract

The invention discloses a multilayer sleeve type superconducting magnet and a manufacturing method thereof, and belongs to the technical field of a superconducting magnet application. The multilayer sleeve type superconducting magnet is formed by combining a plurality of cylindrical superconducting sheets with the same height and the radiuses from small to large one by one, and a layer of insulating sheet is arranged between every two cylindrical superconducting sheets. A coil formed by double-layer winding of copper wires can be placed in the center of the superconducting sheet with the minimum radius, and is externally connected with a pulse power supply to form a magnetic flux pump which is powered by the principle of the magnetic flux pump. Due to the fact that the angle deviation between a film layer and a tangent plane is required to be not larger than 5 degrees in the coating process of the superconducting sheet, the arc length and the radius of the cylindrical superconducting sheet have certain manufacturing requirements. According to the invention, operation loss can be reduced in practical application, a stable large-space magnetic field is generated step by step, excitation efficiency is improved, and closed-loop operation of the superconducting magnet is realized.

Description

technical field [0001] The invention belongs to the technical field of application of superconducting magnets, and in particular relates to a multilayer sleeve-type superconducting magnet and a manufacturing method thereof. Background technique [0002] The high-field electromagnetic environment plays an extremely important role in the development of science and technology, and it breeds many important scientific discoveries and new technologies. The generation and application research of ultra-high magnetic field is of great significance to scientific facilities under extreme conditions, biomedical engineering, special defense equipment, high-precision scientific instruments and agricultural applications. Although the high-field electromagnetic environment has some applications in the industrial and national defense fields, at present it mainly plays a role in the fields of physics, chemistry, materials, and life sciences. In particular, some large scientific and engineeri...

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Problems solved by technology

[0003]The general excitation power supply is in a normal temperature environment. If a current lead is used to connect the power supply and a superconductor, the requirements for the power supply are relatively high, and the two ends of the current lead are respectively at low temperature and At room temperature, a large amount of heat will be transferred to the superconducting cryogenic container. At the same time, the current lead resistance and the welding resistance between the current lead and the superconducting wire will generate Joule heat when energized, which will cause power loss and increase cooling costs.

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