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Konstantan alloy baseband for high-temperature superconduction coating conductor

A technology of coated conductors and constantan alloys, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as limiting AC transmission applications, and achieve the effect of superior electrical conductivity

Inactive Publication Date: 2008-11-12
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it still has ferromagnetism in the application temperature range of high-temperature superconductivity, and there is a certain AC loss, which limits its application in AC transmission.

Method used

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  • Konstantan alloy baseband for high-temperature superconduction coating conductor
  • Konstantan alloy baseband for high-temperature superconduction coating conductor
  • Konstantan alloy baseband for high-temperature superconduction coating conductor

Examples

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Embodiment 1

[0020] In this embodiment, high-purity copper, nickel, and manganese-gold powders are used as raw materials.

[0021] The used copper, nickel and manganese metal powders are in the following proportions by weight: 60% of Cu, 38% of Ni and 2% of Mn.

[0022] In this embodiment, the preparation process and steps of the constantan alloy baseband are as follows:

[0023] (1) carry out batching according to above-mentioned chemical composition formula, take by weighing 600g of copper powder, 380g of nickel powder and 20g of manganese powder, be made into mixture; Melt by traditional conventional smelting process, form ingot through smelting and casting; Then cast ingot After forging and rolling to form billets.

[0024] (2) annealing the above-mentioned ingot at a temperature of 500° C. for 50 minutes under a mixed atmosphere of Ar+4% Hz;

[0025] (3) Rolling is carried out then, and the rolling deformation of pass is 5%, and total deformation is 98%; Obtain the alloy base strip ...

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Abstract

The invention relates to a konstantan alloy baseband used for a high-temperature superconducting coated conductor without magnetism and with high conductance and a method for preparing the same, belonging to the high conducting metal alloy material preparation process technical field. The compositions by weight percentage of the konstantan alloy baseband used for the high-temperature superconducting coated conductor are: 50 to 60 percent of Cu, 38 to 48 percent of Ni, and 1 to 5 percent of Mn. The alloy baseband can form a biaxially texture through each step in the technical process via annealing under a mixed atmosphere of Ar plus 4 percent Hz with an annealing temperature controlled to be between 700 and 1000 DEG C and the annealing time controlled for 30 to 90 minutes. The structure is advantageous to the coating of a YBCO superconducting thin film layer of the konstantan alloy baseband.

Description

technical field [0001] The invention relates to a non-magnetic, high-conductivity constantan alloy base tape for a high-temperature superconducting coated conductor and a preparation method thereof, belonging to the technical field of high-conductivity metal alloy material preparation technology. Background technique [0002] The high-temperature superconducting coating conductor technology is to grow a biaxially textured YBa on a metal substrate supplemented with a buffer layer. 2 Cu 3 o 7-x (YBCO) superconducting thin film to obtain high and lossless superconducting current-carrying capacity in the liquid nitrogen temperature range. Achieving biaxial texture is the most critical technology for high-temperature superconducting coated conductors. People have developed a number of methods, in which a buffer layer is epitaxially grown on biaxially textured polycrystalline metal strips, and then epitaxially grown to obtain biaxially textured Structured YBCO superconducting l...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/02C22F1/08B21B37/16
Inventor 范峰鲁玉明蔡传兵刘志勇高波应利良
Owner SHANGHAI UNIV
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