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热轧生产线在轧制带钢过程中,工作辊所承受的轧制力,通过支承辊、支承辊靠枕、上阶梯垫、AGC液压缸、下阶梯垫、换辊滑座压板、换辊滑座底部滑板、轧机底板等零部件传递,最后由轧机牌坊所承受。承受轧制力的各个零部件将产生弹性变形,工作机架的总弹性变形可达几毫米。轧机工作机架的总变形分两部分:一部分由于工作机架的弹性变形,两轧辊轴向产生相对平移,使辊缝发生变化,影响板材纵向厚度称为轧机的纵向刚度,另一部分由于轧辊的弯曲变形影响板材的横向断面厚度差称为轧机的横向刚度。轧机刚度不仅影响轧辊的开口度和辊型设计,而且也影响轧机的调整和轧制工艺规程的制定。
Hot rolling production line in the process of rolling strip, the work roll to bear the rolling force, through the support roller, bearing roller pillow, the upper ladder pad, AGC hydraulic cylinder, the next step mat, roll changer platen, The bottom of the skateboard, rolling mill floor and other components passed, and finally accepted by the mill Torii. The various components that bear the rolling force will produce elastic deformation, the total elastic deformation of the working frame up to a few millimeters. The total deformation of the working frame of the rolling mill is divided into two parts: one part due to the elastic deformation of the working frame, the relative axial displacement of the two rolls produces the change of the roll gap, the longitudinal thickness of the slab is affected by the longitudinal rigidity of the rolling mill and the other part due to the Bending deformation of the transverse section of the plate thickness difference is called the mill’s lateral stiffness. Mill stiffness not only affects the roll opening and roll design, but also affect the adjustment of the mill and the rolling process rules.