文档介绍：中厚板温度场的分步解析求解方法及应用
摘要:在板材的热轧生产过程中,准确知道板材内部温度分布随时间的变化适板材力卞性能控制的关键。以往的方法是利用柯限差分法或常系数偏微分方程的解来计算温度场,为避免有限差分法汁算步数太多和常系数偏微分方程的解不能满足参数随温度变化而变化的不足,给出了分步解析的解。经试验对比,本方法法计算结果与数值解法和实测值接近,可用于中厚板的温度场在线计算。
关键词:中厚板;力学性能控制;温度场;分步解析法;在线计算
Abstract: in the process of plate hot rolling production, accurate know the temperature distribution inside the plate sheet along with the change of time optimal force \"bian performance control key. Previous method is the use of partial differential equation with constant coefficients of ke limited difference method or the solution to calculate the temperature field, in order to avoid the finite difference method putational steps solution of partial differential equation with constant coefficients of too much and can't meet the parameters with the temperature change and change is insufficient, step-by-step analytical solution is given. Through experiment contrast. This approach method to calculate the results and the numerical solution and close to measured values, and can be used in the temperature field of medium plate online calculation.
Key words: medium plate; Mechanical properties of control; Temperature field; Step-by-step analytical method; Online calculation
在热轧板材的生产过程中,温度参数是控制产品力学性能和轧制节奏的关键参数。特别是在中厚板的控制轧制过程中,合理的温度参数设定是保证产品力学性能的根本。板材轧制温度场的计算大致有2种常用的方法:一种是解析解法;另一种则为数值解法。解析解法的优点是只用一个公式即可算出目标温度场,其缺点是偏差大;数值解法则能够根据每时刻温度的变化及时对随温度而变的热物性参数进行调整,因此精度较高,