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 (7): 1000-1003.DOI: -

• 论著 • 上一篇    下一篇

Na_2O对CaO-Al_2O_3基渣系性能的影响

史冠勇;张廷安;牛丽萍;豆志河;   

  1. 东北大学材料与冶金学院;
  • 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:
    国家自然科学基金资助项目(50704011,50644016,50874027,50704044,51074044,51002025);;

Influence of Na2O on properties of CaO-Al2O3 slag

Shi, Guan-Yong (1); Zhang, Ting-An (1); Niu, Li-Ping (1); Dou, Zhi-He (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Zhang, T.-A.
  • About author:-
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摘要： 分析了向CaO-Al2O3基熔渣中添加Na2O对熔渣性能的影响,并比较了几种不同的添加剂对渣系黏度的影响.研究表明:w(CaO)/w(Al2O3)=1.1时,渣系中随着Na2O含量的增加,CaO-Al2O3渣系的黏度先降低后升高,在Na2O质量分数为4%处出现极小值;Na2O的添加还会导致CaO-Al2O3渣系的熔化温度升高;Na2O,Li2O和MgO都可以降低CaO-Al2O3渣系的黏度,其降低渣系黏度的能力由大到小依次为Li2O>Na2O>MgO.综合考虑Na2O对渣系黏度和熔化温度的影响,Na2O在CaO-Al2O3渣系中的加入量以不超过4%为宜.

关键词: 铜铬合金, Na2O, CaO-Al2O3, 黏度, 熔化温度

Abstract: The effect of adding Na2O into the CaO-Al2O3 slag on the viscosities and melting points of the slags when w(CaO):w(Al2O3)=1.1 was investigated, and the influence of several different additives on the viscosities of the slags was compared. The results showed that with the increase of the Na2O content, the viscosities of the CaO-Al2O3 slags decrease at first and then increase, and reach the minimum value when mass fraction of Na2O is 4%. The melting points of the slags increase with increasing additive content of Na2O. The addition of Na2O, Li2O and MgO decreases the viscosities of the CaO-Al2O3 slags. The ability to reduce the viscosities of the slags in descending order is Li2O>Na2O>MgO. Considering the influence of Na2O on viscosities and melting points of CaO-Al2O3 slags, the dosage of Na2O in CaO-Al2O3 slags should not exceed 4%.

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