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Method for preparing strong-cube-texture low-magnetism compound Ni-W alloy base bands

A strong cubic texture and composite technology, applied in metal rolling, usage of superconducting elements, superconducting devices, etc., can solve problems such as difficult to realize large-scale industrial production

Active Publication Date: 2013-08-07
深创超导(深圳)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the single-layer NiW alloy base tape is difficult to meet the requirements of high cubic texture content, non-magnetism, and high strength; and the method of preparing composite base tape ingots by powder metallurgy is difficult to achieve mass industrial production

Method used

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  • Method for preparing strong-cube-texture low-magnetism compound Ni-W alloy base bands
  • Method for preparing strong-cube-texture low-magnetism compound Ni-W alloy base bands
  • Method for preparing strong-cube-texture low-magnetism compound Ni-W alloy base bands

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Experimental program
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Effect test

Embodiment 1

[0020] (1) The Ni block with a purity of 99.95% and a W block with a purity of 99.99% are proportioned according to the molar percentage of W as 5% and 12% respectively; these two raw materials with different proportions are placed in an intermediate frequency vacuum Two kinds of ingots with low W content and high W content are obtained by smelting in an induction furnace; two Ni-W alloy billets with the same size and thickness of 12mm are obtained by hot forging and wire cutting;

[0021] (2) Grind and polish the contact surfaces of the two alloy billets to ensure that the surface roughness is less than 0.005mm, and use ethanol or acetone for ultrasonic cleaning; stack the two alloy billets and clamp them with a clamp to make the polished The surfaces are tightly attached together; one end of the billet is machined into a cone shape to facilitate biting during rolling, and the end of the two billets processed into a cone shape is welded and fixed by argon arc welding to obtain th...

Embodiment 2

[0028] (1) The Ni block with a purity of 99.95% and the W block with a purity of 99.99% are proportioned according to the molar percentage of W as 7% and 9% respectively; these two raw materials with different proportions are placed in an intermediate frequency vacuum Two ingots with low W content and high W content are obtained by smelting in an induction furnace; two Ni-W alloy billets with the same size and thickness of 10mm are obtained by hot forging and wire cutting;

[0029] (2) Grind and polish the contact surfaces of the two alloy billets to ensure that the surface roughness is less than 0.005mm, and use ethanol or acetone for ultrasonic cleaning; stack the two alloy billets and clamp them with a clamp to make the polished The surfaces are tightly attached together; one end of the billet is machined into a cone shape to facilitate biting during rolling, and the end of the two billets processed into a cone shape is welded and fixed by argon arc welding to obtain the AB str...

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Abstract

The invention discloses a method for preparing strong-cube-texture low-magnetism compound Ni-W alloy base bands and belongs to the technical field of high-temperature coated superconductive base bands. Raw materials including nickel blocks and tungsten blocks with purity larger than 99.9% are utilized, billets of Ni-W alloy are prepared by vacuum induction melting, initial compound billets are obtained via hot forging and hot pack rolling, and compound tungsten alloy base bands with strong cube textures on surfaces, no magnetism in core layer and high strength are obtained finally after recrystallization annealing. Via a special method for preparing the compound billets, the compound tungsten alloy base bands with high performance are obtained, and the prepared compound tungsten alloy base bands have the advantages of high cube texture content, low magnetism, high strength and the like, and the method is easy for large-scale industrial production.

Description

Technical field [0001] The invention relates to a method for preparing a cubic texture nickel-tungsten alloy composite base tape for high-temperature coated superconductors, and belongs to the technical field of high-temperature coated superconducting base tape preparation. Background technique [0002] Coated superconducting material is one of the high temperature superconducting materials with wide application prospects and huge potential commercial value. Since the second generation of high-temperature superconductors in the 1980s (YBa 2 Cu 3 O 7-X )) Since it was discovered by scientists, the second-generation high-temperature superconducting technology has been greatly developed. In the RABiTS route, the preparation of high cubic texture content, non-magnetic, high-strength base tape is the key to obtaining high-performance coated conductors. [0003] At present, NiW alloy baseband is one of the most widely studied baseband materials in the scientific community. However, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B12/06C22C19/03B21B1/22C22F1/10
CPCY02E40/642Y02E40/60
Inventor 索红莉孟易辰马麟王毅田辉王金华李孟晓梁雅儒
Owner 深创超导(深圳)科技有限公司
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