Q345D大方坯连铸过程数值模拟  

Numerical simulation of continuous casting process of Q345D bloom

作　　者：甄成国 麻永林[1] 许建飞[1] 陈重毅[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院

出　　处：《内蒙古科技大学学报》2015年第2期193-198,共6页Journal of Inner Mongolia University of Science and Technology

基　　金：国家自然科学基金资助项目(51044002);科技部国际合作项目资助(2010DFB70630)

摘　　要：以Q345D大方坯为研究对象,采用二维传热模型对铸坯进行温度场计算.计算了不同拉速、过热度和二冷水量下铸坯温度分布和坯壳生长情况,分析了拉速、过热度和水量对铸坯的温度分布和坯壳生长的影响.得到了不同工艺下,铸坯温度分布规律和凝固坯壳生长规律,为实际生产提供一定的指导.Choosing the Q345D bloom as the research object, a two-dimensional heat flow model was applied to calculate temperature distribution and shell growth of the bloom at different casting speed, different degree of superheat and different amount of second cooling water. The influence of these factors on the temperature distribution and shell growth was obtained. The temperature distribution law and shell growth at different process were found, which would provide some guidance for the actual production.

关 键 词：大方坯 拉速 过热度 二冷水量 

分 类 号：TG777.2[金属学及工艺—刀具与模具]