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A method for preparing a high-strength cubic texture metal base tape for coated superconducting tape

A technology of superconducting tape and cubic texture is applied in the field of preparation of textured metal base materials, which can solve the problems of high production cost and difficult preparation, and achieve the effects of low cost and simple process.

Active Publication Date: 2021-09-14
甚磁科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on nickel-tungsten alloy baseband is relatively mature, and it has been produced industrially, but the preparation of high-strength, non-ferromagnetic nickel-tungsten alloy baseband is difficult and the production cost is high

Method used

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  • A method for preparing a high-strength cubic texture metal base tape for coated superconducting tape
  • A method for preparing a high-strength cubic texture metal base tape for coated superconducting tape

Examples

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Effect test

Embodiment 1

[0018] The Ni-Cu-Co-V alloy ingot was obtained by continuous casting and rolling technology. The composition is: 0.5wt% Co, 42wt% Cu, 2wt% V, the balance is Ni, and the thickness of the alloy ingot is 8mm. Among them, the Co element is The form of Cu-5at.% Co master alloy is added, the V element is added in the form of Ni-5at.% V master alloy, the initial casting temperature is 1280 ℃, and the casting and rolling speed is 0.5m / min. The above-mentioned alloy ingot is heated to 700°C for 30 minutes and then warm rolled. The total deformation is 30%. The warm rolling process is completed in only three passes. The above-mentioned warm-rolled strips were cold-rolled to a thickness of 2 mm, and then kept at 500° C. for 15 minutes, and then continued to be cold-rolled to a thickness of 80 μm. The above-mentioned cold-rolled strip is subjected to recrystallization annealing, and the recrystallization annealing process is as follows: the temperature is put into the furnace, and the tem...

Embodiment 2

[0020] The Ni-Cu-Co-V alloy billet was obtained by continuous casting and rolling technology. The composition is: 1.5wt% Co, 42wt% Cu, 3wt% V, the balance is Ni, and the thickness of the alloy billet is 8mm. Among them, the Co element is The form of Cu-5at.% Co master alloy is added, the V element is added in the form of Ni-5at.% V master alloy, the initial casting temperature is 1300 ℃, and the casting and rolling speed is 1m / min. The above alloy ingot is heated to 900°C for 30 minutes and then warm rolled. The total deformation is 50%. The warm rolling process is completed in only three passes. The above-mentioned warm-rolled strips were cold-rolled to a thickness of 2 mm, and then kept at 500° C. for 15 minutes, and then continued to be cold-rolled to a thickness of 100 μm. The above-mentioned cold-rolled strip is subjected to recrystallization annealing, and the recrystallization annealing process is as follows: the temperature is put into the furnace, and the temperature ...

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Abstract

The invention discloses a method for preparing a high-strength cubic-textured metal base belt for coated superconducting strips. The components of the base belt are: 0.5wt%-1.5wt% Co, 42wt%-55wt% Cu, 2wt%-3wt% % V, the balance is Ni, Co and V are respectively added to the melting furnace in the form of intermediate alloys, and alloy ingots are obtained through continuous casting technology, after warm rolling with 30%~50% deformation, followed by cold rolling, intermediate annealing and The final recrystallization annealing finally obtains a high-strength cubic texture metal substrate, which has no ferromagnetism in the liquid nitrogen temperature range and has a strong cubic texture.

Description

technical field [0001] The invention relates to a method for preparing a high-strength cubic textured metal substrate for a coated superconducting strip, and belongs to the technical field of preparation of textured metal substrates for the second-generation coated superconducting strip. Background technique [0002] Since the discovery of high-temperature superconductivity, superconducting devices operating in the liquid nitrogen temperature region have good prospects for development. The preparation of YBCO superconducting tape has attracted widespread attention in the industry. The preparation method is mainly to grow a buffer layer and a YBCO superconducting layer on a tough metal substrate. A common method is to grow a base tape with a strong cubic texture. The buffer layer and superconducting layer are epitaxially grown, and the practical coated superconducting tape is required to have a base tape with high strength, strong cubic texture and no ferromagnetism in the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/10C22F1/08C21D8/02
CPCC21D8/0231C21D8/0236C21D8/0273C22F1/08C22F1/10
Inventor 刘志勇刘天啸刘宇瑄杨海刚宋桂林
Owner 甚磁科技(上海)有限公司
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