Effect of VIM+ESR+VAR Triplex Melting Process on Purity of Ni-Cr Precision Resistance Alloys

Ma Ding; Huang Guoping; Liu Haiding; Yang Xianjun; Cai Xinnan

doi:10.15980/j.tzzz.2020.10.028

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Effect of VIM+ESR+VAR Triplex Melting Process on Purity of Ni-Cr Precision Resistance Alloys
Vol. 40, Issue 10, Pages: 1168-1171(2020)
Published： 2020 ，
DOI： 10.15980/j.tzzz.2020.10.028

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[1]马丁,黄国平,刘海定,杨贤军,蔡欣男.三联工艺对Ni-Cr精密电阻合金纯净度的影响[J].特种铸造及有色合金,2020,40(10):1168-1171.

Ma Ding, Huang Guoping, Liu Haiding, et al. Effect of VIM+ESR+VAR Triplex Melting Process on Purity of Ni-Cr Precision Resistance Alloys. [J]. Special Casting & Nonferrous Alloys 40(10):1168-1171(2020)
[1]马丁,黄国平,刘海定,杨贤军,蔡欣男.三联工艺对Ni-Cr精密电阻合金纯净度的影响[J].特种铸造及有色合金,2020,40(10):1168-1171. DOI： 10.15980/j.tzzz.2020.10.028.

Ma Ding, Huang Guoping, Liu Haiding, et al. Effect of VIM+ESR+VAR Triplex Melting Process on Purity of Ni-Cr Precision Resistance Alloys. [J]. Special Casting & Nonferrous Alloys 40(10):1168-1171(2020) DOI： 10.15980/j.tzzz.2020.10.028.

摘要

采用真空感应熔炼（VIM）+电渣重熔（ESR）+真空自耗重熔（VAR）三联工艺试制Ni-Cr精密合金

并与VIM+ESR双联工艺生产的产品进行对比

分析了合金纯净度的变化。结果表明

三联工艺试制产品中有害元素和非金属夹杂物含量等均降低了50%以上

试制合金具有更好的加工性能

满足了Ni-Cr精密电阻合金箔材的加工要求。

Abstract

The VIM+ESR+VAR triplex melting process was adopted to produce the Ni-Cr resistance alloys and the purity variation was analyzed comparing with VIM+ESR double process products.The results reveal that the reduction of harmful elements and nonmetallic inclusion in triplex melting process products reach up to 50%.Meanwhile

the trial-produced alloy has a better machining performance

which meets the requirements for processing Ni-Cr precision resistance alloy foil.

关键词

三联工艺精密电阻合金纯净度

Keywords

Triplex Melting ProcessPrecision Resistance AlloyPurity

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