摘要:本论文利用Deform有限元模拟软件对中厚板轧后冷却过程的温度场进行模拟求解，分别得到了钢板在空冷、油冷和水冷三种不同冷却条件下的瞬态温度场分布云图和沿钢板宽度方向上的温降曲线。并通过固定冷却时间来比较三种不同冷却条件下钢板的温降情况。模拟结果表明：三种冷却条件均符合沿钢板的宽度方向，温度从边部到心部逐渐升高。但是相同的冷却时间内，在水冷的条件下，温降最为明显，钢板的温度基本已达到室温；空冷的温降最慢，钢板的温度仍然高达700℃左右；油冷的温降介于水冷和空冷之间，钢板的温度在200℃左右。最后，本文对模拟得到的冷却后钢板边部的温度值及较佳冷却条件进行了实验验证，模拟结果与实验结果基本吻合。关键词：有限元；中厚板；温度场；轧后冷却；数值模拟8587
The Finite Element Simulation for the Temperature Field of Medium Plate during Cooling Process
Abstract: In this paper, the temperature field of a wiled medium plate during controlled cooling is simulated and calculated by Deform finite element software, and thus the distributions of transient temperature fields of the steel plate at various cooling stages during air cooling, oil cooling, water cooling and the curves of temperature drop along the width direction. Through a fixed cooling time, analysis on temperature drop to compare with three different cooling conditions. The results show that: the three kinds of cooling conditions are all following rules that temperature gets rising from surface to the heart along the width direction of plate. But in the same cooling time, the temperature drop of water cooling is the most obvious and the temperature of plate has reached room temperature. The temperature drop of air cooling is the slowest and the temperature of plate is about 700℃. The temperature drop of oil cooling is between water cooling and air cooling and the temperature of plate is about 200℃. According to the Deform finite element, we can get a best cooling solution. Finally, the simulated results are identical with the actual results by comparison, both are basically consistent.
Keywords：Finite Element Method; Plate; Temperature field; Controlled cooling process; numerical simulation
目  录
1  绪论    1
1.1  中厚板轧后冷却系统组成    1
1.2  轧后控制冷却工艺    2
1.2.1  控制冷却    2
1.2.2  典型控制冷却设置及方式    2
1.3  有限元模拟技术在板带钢轧制中的应用    3
1.4  选题的目的和意义    5
1.5  课题的研究内容    6
2  DEFORM有限元分析软件    7
2.1  引言    7
2.2  DEFORM软件简介    7
2.3  DEFORM系统结构    7
2.4  DEFORM的功能概览    7
2.4.1  成形分析    8
2.4.2 热处理    8
2.4.3 型材挤压分析    8
2.4.4 热微观组织分析    8
2.4.5 切削过程模拟    9
2.5  DEFORM软件特点    9
2.5.1  友好的图形界面    9
2.5.2  高度模块化、集成化的有限元模拟系统    9
2.5.3  有限元网格自动生成器以及网格重划分自动触发系统    9
2.5.4  集成金属合金材料    9
2.5.5  集成多种成形设备模型    10
2.5.6  用户自定义子程序    10
2.5.7  辅助成形工具    10
2.6  本章小结    10
3  中厚板轧后冷却过程温度场的有限元模拟    11 Deform中厚板轧后冷却过程温度场的有限元模拟:http://www.751com.cn/zidonghua/lunwen_6985.html