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道次规程的计算是自动轧制的基础。介绍了一种厚板道次规程的计算思路和与之相关的平面形状控制技术,包括轧制过程阶段划分及各阶段目标厚度计算、PVPC相关目标值的计算、道次压下量分配、道次对应各点的设定值计算等,提出了一种道次分配方法。在阶段划分的同时考虑平面形状控制的要求,通过钢板头尾目标厚度的变化,补偿钢板中部和边部延伸的不均匀,最终获得良好的矩形度。
The pass schedule calculation is the basis of automatic rolling. This paper introduces a calculation method of plan order of thick slab and its related planar shape control technology, including the division of rolling process stage, the calculation of target thickness in each stage, the calculation of PVPC related target value, the allocation of pass reduction, Times corresponding to the set point calculation, etc., proposed a method of pass allocation. Considering the requirement of plane shape control at the stage division, through the change of the thickness of the target at the head and tail of the steel plate, the unevenness of the extension of the middle and the edge of the steel plate is compensated and finally the good squareness is obtained.