交叉轧制模式下热轧板厚度的控制

Control of the thickness of hot rolled plate under intersecting rolling mode

某热轧生产线因采用交叉轧制造成特殊钢种全长超厚而判废,针对此问题,分析了温度偏差对厚度的影响、轧制压力偏差对辊缝的影响、自学习对轧制压力和辊缝的影响,采用拟合温度模型系数、回归轧制压力系数、根据钢种标志位进行单独设定与自学习等改进措施,有效解决了全长超厚的问题。

In the condition of adopting intersecting rolling in a hot rolling line a special steel was discarded due to full-length of plate was over-thick.Aiming at this problem,the influences of temperature deviation on thickness,rolling pressure on roll gap and self-learning on rolling pressure and roll gap were analyzed.Improvement measures such as simulating the temperature model coefficient,regressing the rolling pressure coefficient,setting solely according to the flag bits of steel grades and self-learning were adopted.The problem of the over-thick full-length of plate was solved efficiently.