Elastic superconducting magnet skeleton and manufacturing method thereof

Abstract

The invention relates to an elastic superconducting magnet skeleton and a manufacturing method thereof. The elastic superconducting magnet skeleton is composed of multiple sets of mutually superposed annular sectioning combined type double-cake skeletons clamped by upper and lower pressing plates, wherein each set of the annular sectioning combined type double-cake skeletons comprises more than three sections of monomer double-cake skeletons; each of the monomer double-cake skeletons is fan-shaped, has a symmetric structure and is provided with a central separating plate at the center; winding slotted plate and lateral separating plate layers are arranged from the central separating plates to upper and lower two sides in turn; the layers are staggered and spliced; the inner diameters of the central separating plates, winding slotted plates and lateral separating plates are the same; the outer diameters of the central separating plates and the lateral separating plates are more than the outer diameters of the winding slotted plates, thereby forming wire stock winding slots; fixing holes, through which a nonmagnetic pull rod passes, are formed on the upper and lower pressing plates and each set of the annular sectioning combined type double-cake skeletons; and in the structure of each of the monomer double-cake skeletons, saw teeth are arranged on outer circles of the central separating plate and the lateral separating plate and an elastic pad layer is paved in the formed wire stock winding slot. The elastic superconducting magnet skeleton has the advantages of excellent low-temperature mechanical property and strong low-temperature protection capability.

Description

technical field [0001] The invention relates to the structure and process technology for making a superconducting magnet and its skeleton, in particular to an elastic superconducting magnet skeleton and a manufacturing method, and a superconducting magnet made with the same. Background technique [0002] Superconducting materials have zero electrical resistance when they reach a certain low temperature environment. Using this characteristic of superconducting materials, the application research of a series of superconducting power devices such as superconducting fault current limiter, superconducting transformer and superconducting energy storage has been greatly developed, and superconducting magnet is an important part of it. A key to the application. Compared with magnets made of conventional materials, superconducting coils wound with superconducting wires, as excitation magnets, have the advantages of extremely small power consumption, compact size, and high stability....

AI Technical Summary

Problems solved by technology

When a superconducting magnet transitions from normal temperature to liquid nitrogen ambient temperature or vice versa, the superconducting tape will be stretched too tight or too loose due to the difference in thermal expansion coefficient between the skeleton and the superconducting coil, and even the superconducting tape will be broken. , The serious consequences of magnet deformation and damage

[0005] The invention patent with the authorized notification number CN101499350B discloses a structure form of a high-temperature superconducting magnet skeleton, which solves the problem of prestress in the winding process of superconducting coils, and improves the mechanical strength of superconducting magnets to a certain extent, reduces the However, the superconducting magnet frame of this structure still cannot effectively relieve the internal stress generated by the difference in thermal expansion coefficient between the superconducting coil and the frame, which may cause The current lead of the superconducting magnet coil breaks due to internal stress, causing the entire magnet to fail to work normally

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