A cross-layer connection structure between adjacent cakes of a high-temperature superconducting magnet double-cake coil

Abstract

A cross-layer connection structure between adjacent cakes of a high-temperature superconducting magnet double-cake coil includes a high-temperature superconducting magnet double-cake coil, a left high-purity copper joint and a right high-purity copper joint are fixedly welded to the outer side surface of each cake coil in the high-temperature superconducting magnet double-cake coil, and a connection superconducting tape material which is the same as the material of the high-temperature superconducting magnet double-cake coil is connected between the left high-purity copper joint of the upper layer cake coil and the right high-purity copper joint of the lower layer cake coil through resistance welding. The invention is applicable to the cross-layer connection between the cakes of the high-temperature superconducting magnet double-cake coils, and can ensure the joint resistance of 10<-7>-10<-8> omega range (77K). The structure has the advantages of simple structure design of the joint, easy machining, arbitrary placement of connecting blocks along the outer side of the coil, easy fixation of the cake connection and the like, and is applied to the high-temperature superconducting magnet, and the minimum resistance of the joint is 2*10<-8> omega.

Description

Technical field: [0001] The invention relates to the technical field of high-temperature superconductivity, in particular to a cross-layer connection structure between adjacent cakes of a double-cake coil of a high-temperature superconducting magnet, and the designed connection joint resistance can be controlled at 10 -7 ~10 -8 In the Ω range (77K), it can ensure the stable operation of the superconducting device. Background technique: [0002] With the development of high-temperature superconducting strip production technology, superconducting magnets made of high-temperature superconducting strips are widely used in electric power transportation, magnetic separation and other industries due to their advantages such as high magnetic field strength, low operating costs, safety and reliability. However, with the deepening of applications, some new requirements have been put forward for high-temperature superconducting strips, especially the length of a single strip. [0003...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a cross-layer connection structure between adjacent cakes of a high-temperature superconducting magnet double cake coil, which ensures that the joint resistance is 10 -7 ~10 -8 Within the range of Ω (77K), it solves the problem of cross-layer coils between adjacent cakes, so as to ensure that the length of the strip meets the requirements of the superconducting device.

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