Manufacturing method for Nb3Al superconducting wire

A kind of superconducting wire, technology of making method

Active Publication Date: 2013-02-13
西部超导材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of Nb 3 The manufacturing method of Al superconducting wire rod, solves existing high-performance Nb 3 The "rapid heating and cooling" heat treatment and "frequent disconnection" problems necessary for the production of Al superconducting wires

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  • Manufacturing method for Nb3Al superconducting wire
  • Manufacturing method for Nb3Al superconducting wire

Examples

Experimental program
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Embodiment 1

[0022] Embodiment 1, a kind of Nb 3 The method for manufacturing an Al superconducting wire includes: preparing a supersaturated solid solution, powder processing, tube loading and drawing, and phase forming heat treatment. The specific steps are as follows:

[0023] a. Preparation of supersaturated solid solution: take 1.0kg Al 1-x Nb x Master alloy (x=0.251) ingot and 4.26kg Nb ingot are melted and mixed uniformly by arc melting; then, slowly cooled to 1940°C, the high-temperature Nb-Al solid solution is directly put into gallium liquid for quenching , to obtain Nb(Al)ss supersaturated solid solution;

[0024] b. Powder processing: crush the obtained Nb(Al)ss supersaturated solid solution by impact and rolling; and process the crushed Nb(Al)ss supersaturated solid solution into particle size by high-energy ball milling 100 mesh Nb(Al)ss supersaturated solid solution powder;

[0025] c. Tube drawing: put the obtained Nb(Al)ss supersaturated solid solution powder into a Cu...

Embodiment 2-5

[0028] Embodiment 2-5, a kind of Nb 3 The specific steps of the manufacturing method of the Al superconducting wire are the same as in Example 1, and the relevant parameters are shown in Table 1 below.

[0029] Table 1 Embodiment 2-5 related parameters

[0030]

[0031]

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Abstract

The invention discloses a manufacturing method for an Nb3Al superconducting wire. The manufacturing method comprises the steps of: melting and uniformly mixing Nb and Al1-x Nbx intermediate alloy; slowly cooling the mixture and quenching the mixture to generate Nb(Al)ss supersaturated sosoloid; processing the sosoloid to form powder, and filling the powder into a Cu tube, and processing the powder to form a Cu / Nb-Al wire; and finally carrying out thermal treatment on the formed Cu / Nb-Al wire. According to the manufacturing method disclosed by the invention, a normal powder in tube processes the Nb(Al)ss supersaturated sosoloid powder to be a guide wire, and phase-forming thermal treatment is conducted on the guide wire to obtain a high-performance Nb3Al superconducting wire. The manufacturing method disclosed by the invention is simple, and a complicated thermal treatment device is not needed, so that a difficulty that the wire is frequently broken in a common method is solved; and moreover, according to the manufacturing method, the cost is low, the Nb3Al is suitable for industrial production and helpful for large-scale popularization.

Description

technical field [0001] The invention relates to a method for making a low-temperature alloy superconducting wire, in particular to a Nb 3 A method for producing an Al superconducting wire. Background technique [0002] Fully superconducting controllable magnetic confinement thermonuclear fusion energy (tokamak) power generation technology is one of the strategic new energy technologies for the sustainable development of mankind in the future. Due to the abundant resources and environmental friendliness of controllable nuclear fusion energy, it is recognized as the ideal energy source that is most likely to solve the future global energy crisis and promote the sustainable development of human society. In 2010, my country's strategic plan has clearly listed "superconducting magnetic confinement nuclear fusion technology" as the development direction supported by the country in the medium and long term. The superconducting magnet wound by a large solenoid coil is the key to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B12/04
CPCY02E40/641Y02E40/60
Inventor 潘熙锋闫果崔利军王大友侯艳荣刘向宏冯勇张平祥
Owner 西部超导材料科技股份有限公司
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