High temperature superconductive tape welding pressure control and performance testing device

Abstract

The invention provides a high temperature superconductive tape welding pressure control and performance testing device. The high temperature superconductive tape welding pressure control and performance testing device comprises a welding pressure main bracket, wherein a through groove is formed in the front side of the welding pressure main bracket, and a position adjusting block is arranged in the through groove; a sample pressure applying block is arranged below the position adjusting block; a super hysteresis telescopic driver is arranged on the sample pressure applying block; a heater is arranged in the lower side frame of the through groove; a force sensor is arranged in an adjusting bolt; solder paste materials are smeared on the surfaces of high temperature superconductive samples,and the surfaces, coated with the soldering tin materials, of the two samples are in butt joint and then are arranged in a clamp; the adjusting bolt is adjusted to enable the position adjusting blockto drive the sample pressure applying block to move downward, and the excitation current in a drive coil is set, and a PID takes the welding pressure as a target value to control the current intensityof the excitation power source to control the expansion and contraction quantity of a super magnetic induced shrinkage or elongation bar so as to enable the magnitude of the welding pressure to be constant; and the heater is used to heat and weld the high temperature superconductive samples. The high temperature superconductive tape welding pressure control and performance testing device has theadvantages of simple structure, economical and practical performance, high integrated level and simple operation.

Description

technical field [0001] The invention belongs to the technical field of high-temperature superconducting strip welding, in particular to a high-temperature superconducting strip welding pressure control and performance testing device. Background technique [0002] In recent decades, the joint problem of high-temperature superconducting strips has been a hot and difficult problem in the research and application of high-temperature superconductivity. In practical applications, due to the influence of special physical properties such as grain boundary angle and material anisotropy on the critical current of high-temperature strips, its preparation is very difficult. The YBCO that can be prepared by the best preparation process in the world at present The length of the coated conductor is only on the order of kilometers. However, the high-temperature superconducting tape required for the actual preparation of high-temperature superconducting magnets often superconducts tens of ki...

AI Technical Summary

Problems solved by technology

The hydraulic control system is aimed at large-scale welded parts, and cannot accurately control parameters such as displacement. Therefore, it is necessary to propose a welding device that can better meet the actual needs of high-temperature superconducting joints in the actual situation.

Images