LATS refining ladle slag modifying with CaO-CaF_2

作     者：Hongming Wang Guirong Li Zhongming Ren Bo Li Xuejun Zhang Guomin Shi 

作者机构：School of Materials Science and Engineering Jiangsu University Zhenjiang 212013 China Shanghai Enhanced Laboratory of Ferro-Metallurgy Shanghai University Shanghai 200072 China Stainless Steel Branch Baosteel Group Shanghai 200431 China 

出 版 物：《Journal of University of Science and Technology Beijing》 (北京科技大学学报（英文版）)

年 卷 期：2007年第14卷第2期

页      面：125-129页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0802[工学-机械工程] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This study was financially supported by Baosteel, College Natural Science Research Project of Jiangsu Province (No. 04KJB430022,05KJD450043) the National Natural Science Foundation of China (No.50474037) 

主　　题：LATS ladle refining slag melting point viscosity desulfurization 

摘      要：To reduce the slag sticking onto the snorkel of the ladle during the ladle alloying treatment station （LATS） process, CaO- CaF2 （the mass ratio of CaO/CaF2 is 1：1） was employed as the modifier of the LATS refining ladle slag. The effect of CaO-CaF2 on the melting point, viscosity, and desulfurizing capability of the ladle slag was investigated. The melting point of the unmodified ladle slag is 1439℃. When adding 20wt% CaO-CaF2, the melting point is decreased to 1327℃. At 1500℃. the viscosity of the unmodified ladle slag is 6.5 Pa.s, which can be decreased lower than 2 Pa.s by adding more than 10wt% CaO-CaF2. The experimental results of desulfu- rization of the melts show that the desulfurizing power of the ladle slag can be enhanced by adding CaO-CaF2.