温度及组成变化对中间包覆盖剂黏度的影响  

Effect of Temperature and Composition on Viscosities of Tundish Fluxes

作　　者：孙璐艳[1] 任耘[1] 孟炳辰[1] 赵福才[1] 

机构地区：[1]西安建筑科技大学材料科学与工程学院,西安710055

出　　处：《硅酸盐通报》2012年第3期688-692,共5页Bulletin of the Chinese Ceramic Society

基　　金：陕西省教育厅产业化资助项目(2011JG13)

摘　　要：对由高炉渣演化而成的CaO-Al2O3-SiO2-MgO-CaF2五元系中间包覆盖剂的黏度进行了测试研究,得到覆盖剂中各主要组成和温度对黏度的影响规律及程度,并经回归分析,得到了回归方程。研究结果表明:高炉渣的利用率可达74.32%,随着渣中CaF2、CaO和MgO含量的增大,覆盖剂的黏度显著降低;随着Al2O3、SiO2含量的增大,覆盖剂的黏度不断升高,而且覆盖剂中各组成对熔渣黏度影响的程度为:CaF2>CaO>SiO2>Al2O3>MgO。The viscosity of CaO-A1203-SiO2-MgO-CaF2 tundish fluxes originated from blast furnace slag was investigated. The effect of compositions and temperature on the viscosity of tundish fluxes was studied based on experimental results. Furthermore, the regression equation was suggested. The results showed that the utilization rate of blast furnace slag is up to 74.32%. The viscosity of CaO-A1203-SiO2-MgO- CaF2 tundish fluxes decreases notably with increasing mass fractions of CaF2, CaO and MgO, and increases gradually with increasing mass fractions of Al2O3 and SiO2. The effects of CaO, Al2O3, SiO2, MgO, CaF2 on the viscosity of tundish fluxes are as follows：CaF2 〉 CaO 〉 SiO2 〉 Al2O3 〉 MgO.

关 键 词：高炉渣 中间包覆盖剂 温度 组成 黏度 

分 类 号：TQ175[化学工程—硅酸盐工业]