Thermal deformation of HVC work roll in hot strip rolling

A temperature field model of work rolls is established with an HVC work roll as the object of study by a method of two-dimensional alternating direction finite difference. The model can be used to simulate the temperature field and thermal contour of work rolls at any time, and its computing time meets the online requirement, with absolute stability. The calculated values are in good agreement with online measured data, indicating the accuracy of the model.