矩形坯连铸凝固传热的数学模型  

MATHEMATICAL MODEL OF SOLIDIFICATION AND HEAT TRANSFER OF RECTANGULAR BILLET IN CONTINUOUS CASTING

作　　者：刘青[1] 田乃媛[1] 王英群[1] 徐明昕 

机构地区：[1]北京科技大学,上海浦东钢铁有限公司

出　　处：《钢铁》1997年第2期28-32,共5页Iron and Steel

摘　　要：根据连铸矩形坯凝固传热特点，在上海浦东钢铁有限公司１号连铸机二冷系统改造中，运用直接差分法建立了二维非稳态矩形坯凝固传热数学模型，已应用于连铸凝固过程的模拟计算。在分析拉速、浇注温度等工艺参数对钢水凝固过程的影响后，为提高拉速找到了理论依据。According to the solidification and heat transfer characteristics of strand, direct dif- ference method has been developed to establish a two dimensional unsteady mathematical model for rectangular billet solidification and heat transfer. The model is used in computer simulation of the solidification process for No. 1 caster with modified secondary cooling system at Shanghai Pudong Iron & Steel Co. Ltd. and the influence of operating parameters including casting speed and temper- ature upon the solidification process is analyzed as theoretical basis of increasing casting speed.

关 键 词：连铸 矩形坯 数学模型 凝固 传热 

分 类 号：TF777[冶金工程—钢铁冶金]