基于ANSYS的45^#钢结晶器内温度场模拟  

Simulation of Temperature Field of Crystallizer for 45^# Steel Based on ANSYS

作　　者：王志春[1] 张楼成 袁小健[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古包头014010

出　　处：《铸造》2016年第9期879-882,共4页Foundry

基　　金：国家自然科学基金(61463041);包头市科技计划项目(2014Z1010-4)

摘　　要：以包钢薄板坯连铸结晶器内的45^#钢为研究对象，利用ANSYS有限元软件建立二维非稳态传热模型。研究了在不同拉速和过热度条件下，铸坯在结晶器出口处温度和坯壳厚度变化的情况。结果表明：拉速增大时，结晶器出口处的温度升高、坯壳厚度变薄，且坯壳厚度的变化曲线Hanno提出的定律相一致；同样，过热度增大时，结晶器在出口处的温度也升高，过热度对角部坯壳厚度影响作用明显。通过有限元计算，给出了结晶器出口处铸坯温度分布和坯壳的厚度范围，分析了其影响因素，这为其他凝固坯壳厚度在线无损检测提供参考数据。With Baogang＇s 45^# Steel sheet bar in the continuous casting crystallizer as the research object, the two-dimensional unsteady state heat transfer model was established based on ANSYS finite element software. Temperature of casting blank in the outlet and the thickness of solidified shell were researched under different casting speed and superheat degree. The results show that with casting speed increasing, the exit temperature of the crystallizer increases and the shell thickness thins, and the change curve of the shell thickness of bar is roughly the same as the raw established by Hanno. Similarly, with superheat degree increasing, the exit temperature of the crystallizer also increases, and superheat has obvious effect on the corner shell thickness. Through the finite element calculation, exit temperature distribution of casting crystallizer and the shell thickness of the sheet bar were given, and influencing factors were analyzed, which can provide reference data for online non-destructive testing of other solidification shell thickness.

关 键 词：薄板坯 拉速 过热度 

分 类 号：TF777[冶金工程—钢铁冶金]