碱度和TiO_2对连铸保护渣辐射传热特性的影响  

Effect of Basicity and TiO_2 on Radiation Heat Transfer of Mold Flux in Continuous Casting

作　　者：肖建平[1] 谢兵[1] 刁江[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030

出　　处：《连铸》2009年第5期42-46,共5页Continuous Casting

基　　金：国家自然科学基金项目(50474024)

摘　　要：在连铸过程中,保护渣对控制铸坯与结晶器之间的传热和润滑起着至关重要的作用,针对过渡族金属氧化物对远红外波段光的吸收特性,对不同碱度和不同TiO2含量的保护渣的辐射传热进行了研究。实验结果表明,随着碱度的增加保护渣的辐射传热减小;随着TiO2含量的增加,保护渣的辐射传热也减小。Mold fluxes play an important role in heat transfer and lubrication between strand and mold in continuous casting. Because of the absorbability on infrared light of transition metal oxide, the infrared radiation transfer of mold fluxes with different basicity and content of TiO2 were investigated. The experimental results indicate that radiation heat transfer of high basicity is lower that of low basicity, radiative transfer is decreased with the content increasing of TiO2 in mold flux.

关 键 词：连铸 保护渣 透过率 辐射传热 

分 类 号：TF777[冶金工程—钢铁冶金]