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Preparation method of high-strength cubic texture copper-based alloy base band

A cubic texture, copper-based alloy technology, applied in metal rolling, metal rolling, temperature control, etc., can solve the problems of high processing cost, limited development of nickel-tungsten alloy baseband, poor mechanical properties, etc.

Inactive Publication Date: 2020-04-28
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the process of developing coated superconducting tapes using the RABiTS technology route, a variety of metal tapes can be used as ductile textured substrate materials for coated superconducting materials, among which nickel-tungsten alloy substrates are the most widely studied alloy system, but the processing cost of high-performance nickel-tungsten alloy is relatively high, which limits the further development of nickel-tungsten alloy baseband
Studies have shown that copper-nickel alloys are easy to form a strong cubic texture, and can achieve ferromagnetism in the liquid nitrogen temperature zone by adjusting the ratio of copper and nickel, but their mechanical properties are poor, because copper-nickel alloys have obvious costs in raw material costs. Advantages, the research on copper-nickel alloys still has important industrial value, how to obtain high mechanical properties in copper-based alloys is currently a hot spot and difficulty in the research and development of the second-generation coated superconducting tape baseband

Method used

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  • Preparation method of high-strength cubic texture copper-based alloy base band
  • Preparation method of high-strength cubic texture copper-based alloy base band

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Embodiment 1

[0019] Using nickel with a purity of 99.99%, copper with a purity of 99.99%, and iron with a purity of 99.99% as raw materials, the atomic percentage of nickel is 47%, the atomic percentage of iron is 2.8%, and the balance is copper. Proportioning, the cast slab is obtained by non-vacuum melting and casting. When iron is used as the raw material, it is heated to 150°C in the air and then put into the melting furnace; 7 passes, the final hot rolling to a thickness of 13mm, the final rolling temperature is controlled above 1050°C, and the hot-rolled alloy strip is obtained by quenching after hot rolling; Roll deformation to obtain a cold-rolled alloy strip with a thickness of 120 μm, and the thickness reduction of each pass is controlled at 25%; the above-mentioned cold-rolled alloy strip is recrystallized and annealed in a protective atmosphere. The specific process: 1200 ° C for 5 minutes, Heating method: heating to the furnace, cooling method: water quenching; low temperature...

Embodiment 2

[0021] Using nickel with a purity of 99.99%, copper with a purity of 99.99%, and iron with a purity of 99.99% as raw materials, the atomic percentage of nickel is 47%, and the atomic percentage of iron is 1.5%. The balance is the proportion of copper, and the cast slab is obtained by non-vacuum melting and casting. When iron is used as the raw material, it is heated to 150°C in the air and then put into the melting furnace; Rolling, hot rolling for a total of 7 passes, the final hot rolling to a thickness of 13mm, the final rolling temperature is controlled above 1050°C, and quenching treatment after hot rolling to obtain hot-rolled alloy strips; the surface layer of the above-mentioned hot-rolled alloy strips is ground or milled off Cold-rolled and deformed after oxidation scale to obtain a cold-rolled alloy strip with a thickness of 75 μm, and the thickness reduction of each pass is controlled at 20%; the above-mentioned cold-rolled alloy strip is recrystallized and annealed ...

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Abstract

The invention discloses a preparation method of a high-strength cubic texture copper-based alloy base band. According to the preparation method, nickel, copper and iron with the purities of 99.99% aretaken as raw materials, a casting blank is obtained by a non-vacuum casting method according to the atomic percentage content of the nickel of 47%, the atomic percentage content of the iron of 1.5%-2.8% and the balance of the copper, a hot rolled plate is obtained by controlling the deformation and the finish rolling temperature through hot rolling, and then the high-strength cubic texture copper-based alloy base band is finally obtained through cold rolling, recrystallization and low-temperature annealing. Through alloy component design and a specific preparation process, the high-performance metal base band suitable for the second-generation coating superconducting tape is developed.

Description

technical field [0001] The invention relates to a method for preparing a high-strength cubic textured copper-based alloy substrate, and belongs to the technical field of preparation of textured metal substrate materials for high-temperature coated superconducting strips. Background technique [0002] In recent years, various technologically developed countries have regarded the practical research of second-generation coated superconductors as a hot spot in the research and development of superconducting materials in the 21st century, and have made a series of breakthroughs. At present, in the process of developing coated superconducting tapes using the RABiTS technology route, a variety of metal tapes can be used as ductile textured substrate materials for coated superconducting materials, among which nickel-tungsten alloy substrates are the most widely studied Alloy system, but the processing cost of high-performance nickel-tungsten alloy is relatively high, which limits th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22C1/02C22F1/08C22F1/02B21B3/00B21B37/74B21B37/58B21B37/00
CPCB21B3/00B21B37/00B21B37/58B21B37/74B21B2003/005C22C1/02C22C9/06C22F1/002C22F1/02C22F1/08
Inventor 张喜林王永永黎文峰刘志勇
Owner HENAN NORMAL UNIV