论文部分内容阅读
横向厚度差是电工钢产品的关键板形指标。分析了迁钢1450UCMW轧机原有边降自动控制系统在控制带钢横向厚差方面存在的问题,对原有控制系统进行优化。通过增加边降区域多点评估和控制功能,缩短了边降陡降区的宽度,提高了系统成材率;通过将原有刚性边降控制策略优化为柔性边降控制策略,将原有的两机架控制拓展为三机架控制,并合理分配各机架的边降控制负荷和分量,在大幅度提高了横向厚差质量水平的同时,有效改善了轧制稳定性。通过对边降控制的系统优化,该机组对带钢横向厚差的控制能力得以显著提升,头尾超差长度由原来的110m缩短为约50m,全长横向厚差优等率由原来的35%提高到87%。
The difference in lateral thickness is the key board shape indicator for electrical steel products. The problems existing in the control of strip thickness difference in the original side-drop automatic control system of 1450MWMW mill in Qiangyang Steel were analyzed, and the original control system was optimized. By increasing the multi-point evaluation and control function of the side-drop region, the width of the down-steep descending zone is reduced and the system yield rate is improved. By optimizing the original rigid side-down control strategy to a flexible side-drop control strategy, Rack control extended to three-rack control, and reasonable distribution of each rack side of the control load and weight reduction in a substantial increase in the quality level of horizontal thickness difference at the same time, effectively improve the rolling stability. Through the optimization of the side-drop control system, the unit’s ability to control the lateral thickness difference of the strip significantly improves. The head-to-tail excess length is shortened from 110m to 50m, and the full-width lateral thickness difference rate is increased from 35% Increase to 87%.