连铸保护渣基料挥发率的测定  

Volatility Measurement of Continuous Casting Mould Powder Base

作　　者：张晨[1] 刘世洲[1] 王文忠 

机构地区：[1]东北大学

出　　处：《钢铁研究学报》1998年第2期14-18,共5页Journal of Iron and Steel Research

摘　　要：通过回归正交设计确定了连铸保护渣基料（ＣａＦ２－ＣａＯ－ＳｉＯ２－Ｎａ２Ｏ）挥发率与碱度、Ｎａ２ＣＯ３、ＣａＦ２含量、温度及时间的二次函数关系式。分析结果表明，在碱度较低或时间较短时，Ｎａ２ＣＯ３、ＣａＦ２含量对挥发率影响不大；在上述５个因素中，温度对挥发率影响最大，而Ｎａ２ＣＯ３对挥发率的影响超过ＣａＦ２。The secondorder function of volatility of mould powder base (CaF_2CaOSiO_2Na_2O) with basicity, Na_2CO_3, CaF_2, temperature and time has been established through orthogonal design. The results show that the effect of Na_2CO_3 and CaF_2 on volatility isn′t strong when time is short or basicity is low, temperature is the strongest factor affecting volatility, and the effect of Na_2CO_3 on volatility is stronger than that of CaF_2.

关 键 词：连铸 保护渣 挥发率 正交设计 

分 类 号：TF777[冶金工程—钢铁冶金]