稀土氧化物对连铸保护渣理化性能的影响  

Effects of Rare Earth Oxides on Physical and Chemical Properties of Casting Powder for Continuous Casting

作　　者：王爱兰[1,2] 智建国 张怀军 陈建新[1] 张晓峰[1] Wang Ai-lan;Zhi Jian-guo;Zhang Huai-jun;Chen Jian-xin;Zhang Xiao-feng(Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research&Development,Baotou 014010,Inner Mongolia Autonomous Region,China;Office of Chief Engineer of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [2]内蒙古自治区稀土钢产品研发企业重点实验室,内蒙古包头014010 [3]内蒙古包钢钢联股份有限公司总工室,内蒙古包头014010

出　　处：《包钢科技》2019年第6期75-78,共4页Science & Technology of Baotou Steel

摘　　要：稀土钢浇铸过程中,稀土氧化物进入到保护渣熔融层中,影响和限制了保护渣冶金性能的正常发挥,针对这一问题,文章系统分析了稀土氧化物对结晶器保护渣不同碱度熔化温度、粘度和结晶温度的影响。结果表明,少量的稀土氧化物对保护渣有助熔作用,随稀土氧化物含量的增加,不同碱度保护渣的熔化温度、粘度和结晶温度变化显著。In the process of casting rare earth steel,the rare earth oxides enter the melting layer of casting powder,which affects and limits the normal play for metallurgical properties of casting powder.In the paper,the effects of rare earth oxides on melting temperature,viscosity and crystallization temperature of mould flux with different basicities are systematically analyzed aiming at the problem.The results showed that a small amount of rare earth oxides could facilitate the melting of casting powder as well as the melting temperature,viscosity and crystallization temperature of casting powder with different basicities were changed significantly with the increase of rare earth oxides content.

关 键 词：稀土氧化物 结晶器保护渣 理化性能 

分 类 号：TF777[冶金工程—钢铁冶金]