东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (5): 689-693.DOI: -

• 论著 • 上一篇    下一篇

V-Ti-Fe中间合金的精炼工艺

王斌;刘奎仁;高腾跃;何季麟;   

  1. 东北大学材料与冶金学院;西北稀有金属材料研究院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2011AA03A409)

Study on refining process of V-Ti-Fe master alloy

Wang, Bin (1); Liu, Kui-Ren (1); Gao, Teng-Yue (1); He, Ji-Lin (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Northwest Rare Metal Materials Research Institute, Shizuishan 753000, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Liu, K.-R.
  • About author:-
  • Supported by:
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摘要： 以金属热还原法制备的V-Ti-Fe中间合金为原料,采用喷吹造渣的方式对其进行精炼研究,实验考察了渣系组成和精炼温度对精炼效果的影响.结果表明:渣体中m(CaF2)/m(CaO)值为3.0,TiO2用量为总渣量的10%,用渣量为合金用量的35%,精炼温度为1 600℃时,精炼效果较好;精炼后合金中的Al质量分数由7.11%降到了2.61%,合金中的Si质量分数变化较小,仅由1.25%降到了0.97%.XRD和SEM分析表明,精炼后合金中没有出现氧化物相,精炼有效地去除了合金中的氧化物夹杂,降低了合金的成分偏析.

关键词: V-Ti-Fe中间合金, 精炼, CaO-CaF2渣系, 吹氩, 氧化物夹杂

Abstract: The spray refining process was carried out to reduce the impurities of V-Ti-Fe master alloy. The influences of slag compositions and temperature on refining effect were investigated. The results showed that when the ratio of m(CaF2)/m(CaO) is 3.0, the slag amount is 35% of the alloy amount, the TiO2 amount is 10% of the slag amount and the refining temperature is 1600°C, a good refining effect is obtained. The content of Al decreases to 2.61% from 7.11% after the refining process. However the content of Si just decreases to 0.97% from 1.25%, the change range is smaller. XRD and SEM results showed that the refining process can remove oxide inclusions effectively. In addition, the componential segregation of the alloy is reduced after the refining process.

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