ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (5): 10-12.

• 试验研究 • 上一篇    下一篇

B2O3对低氟结晶器保护渣理化性能的影响

王艺慈1,郭俊玉2,董 方1, 赵文广1   

  1. 1. 内蒙古科技大学材料与冶金学院,包头 014010;
    2. 邯郸职业技术学院,邯郸 056001;
  • 收稿日期:2008-03-28 出版日期:2008-10-01 发布日期:2022-12-28
  • 作者简介:王艺慈(1975-),女,讲师,2001年包头钢铁学院毕业,钢铁冶金与金属材料研究。
  • 基金资助:
    内蒙古自然科学基金资助项目(编号:200208020206)

Influence of B2O3 on Physico-Chemical Properties of Low Fluorine Mold Powder

Wang Yici1 , Guo Junyu2 , Dong Fang1 , Zhao Wenguang1   

  1. 1. College of Material and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010;
    2. Handan College of Profession and Technology,Handan 056001;
  • Received:2008-03-28 Published:2008-10-01 Online:2022-12-28

摘要: 研究了氟含量1.9%的保护渣系(%:27~30CaO、30~33SiO2、2~3Al2O3、2~3MgO、10~12R2O、1~2Fe2O3、4~5C粉、2Li2O、4CaF2、0~8B2O3)的理化性能。结果表明:随着渣中B2O3含量的增加,保护渣熔点、析晶温度、粘度均降低,但B2O3含量超过6%以后,对保护渣牯度几乎没有影响;B2O3含量为2%~4%时,表面张力较低,有利于结晶器内钢液中夹杂物的上浮排除,得到洁净铸坯。

关键词: B2O3 , 低氟结晶器保护渣, 理化特性

Abstract: The physico-chemical properties of the mold powder series containing 1.9% fluorine(27~30CaO,30~33SiO2,2~3Al2O3,2~3MgO,10~12R2O,1~2Fe2O3,4~5 C powder,2Li2O,4CaF2,0~8B2O3) have studied. Results showed that with increasing B2O3 content in powder,the melting point,crystallizing temperature and viscosity of mold powder decreased, but as B2O3 content was more than 6%,the viscosity of mold powder was not further decreased; and as B2O3 content was 2%~4%,the surface tensile force of mold powder was lower, it was available to float and remove inclusion from liquid steel in mold and get cleanliness casting slab.

Key words: B2O3, Low Fluorine Mold Powder, Physico-Chemical Properties