半无头热连轧动态变规格过程轧制规程优化

Optimization of pass schedule during FGC process in hot strip semi-endless rolling

为了在短时间内顺利实现带钢规格的变换,提高变规格过程的稳定性,提出了一种等压下系数的动态变规格规程设计策略和原理,给出了设计计算实例,与常规规程设计策略计算结果进行了对比,并对过渡过程各机架轧制力和出口厚度的波动进行了仿真计算。结果表明,新策略对提高变规格过程的稳定性,减少变规格机架对逆流机架的影响和干扰有着显著的作用。

A strategy and principle of the optimization of pass schedule named equal reduction were first proposed in order to reduce the time of Flying Gauge Control （FGC） and improve the stability of FGC process. An actual example was given, and the changes in rolling force and gauge during FGC were simulated. The results showed that the stability of FGC process can be improved and the influence of the FGC stand on the other upriver stands can be reduced by the proposed pass-schedule strategy.