Welding device for nanoohm-level high-temperature superconducting joint

Abstract

The invention discloses a welding device for a nanoohm-level high-temperature superconducting connector. The welding device comprises a supporting module, a pressure applying module and a connector welding module. The supporting module is connected with the pressure applying module and the connector welding module and used for providing supporting. The pressure applying module is used for providing a pressure source and regulating and controlling the pressure in the welding process, so that the joint welding success rate is increased; the connector welding module is embedded into a supporting table of the supporting module and can be flexibly replaced according to the connector requirement. As the welding device provided by the invention adopts the welding head matched with the joint in shape, the welding device has the advantages that the temperature gradient change in each direction in the welding head with smaller volume is smaller, the temperature distribution is more balanced, the superconducting performance of strips in other areas is not influenced by a heat source, and the welding pressure can be uniformly applied to the blocky welding head, so that the welding efficiency is improved. Therefore, the quality and the efficiency of connector manufacturing are improved.

Description

technical field [0001] The invention belongs to the technical field of superconducting material connection and superconducting engineering, and more particularly relates to a high-temperature superconducting joint welding device with nano-ohm level. Background technique [0002] The zero-resistance property of superconducting materials allows current to flow continuously in a closed loop in the superconducting coil without Joule heat loss. Compared with low-temperature superconducting materials, high-temperature superconducting materials have higher critical current density and upper critical magnetic field, and can use liquid nitrogen as a refrigerant to get rid of the resource limitation of using scarce resource liquid helium as a refrigerant, so it is widely used. It is used in superconducting cables, superconducting current limiters, superconducting maglev trains, superconducting wind turbines, and nuclear resonance imaging magnets, and has a wider range of applications ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the object of the present invention is to provide a welding device for nano-level high-temperature superconducting joints, aiming to solve the problem that the quality of the joints is affected by uneven temperature or pressure distribution in the existing devices

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