宽带钢热连轧工作辊热辊形模型

Thermal Contour Model of Work Rolls in Hot Wide Strip Mills

摘要: 实现工作辊热辊形的在线预报是板形控制的难题之一.采用一维有限差分方法建立了工作辊热辊形在线计算模型,并利用该模型计算了热轧过程中和下机后任意时刻工作辊温度场及其热辊形.仿真和在线应用结果表明,此在线模型计算速度快,精度高,能满足板形在线过程控制的需要.

Abstract: The thermal contour on-line prediction of work rolls is one of the difficult problems in strip shape control. A theoretical model was built to calculate the on-line work roll's thermal contour by using the one-dimension finite difference method and used to calculate the temperature field and thermal contour at any tune in rolling and after rolling. The result indicates that the computation of this model is rapid and accurate in simulation and online application. This model suits to be used in the process of strip shape on-line control.