1.轧机刚度的概念轧机刚度是轧机最主要的性能参数之一,它与轧制的钢板质量有密切的关系,在轧机的调整操作、辊缝设定、厚度控制及新轧机的设计中都要用到轧机刚度的概念。为了摸清某厂φ170/φ100×350mm三机架冷连轧机的机械特性,提高连轧辊缝的调整精度及产品质量(厚差及板形的控制水平),以及进一步完善轧制工艺制度和挖掘设备潜力,进行了测定研究。在轧钢时,轧制力通过轧辊、轴承、压下螺丝等传至机架,轧机上这些受力部件在轧制力的作用下产生了弹性变形。因此,轧机受力时轧辊之间的实际间隙比空载时大,轧机的辊缝增大量称为弹跳值。反映弹跳值随轧制力变化的曲线称为轧辊的弹性曲线,它并不是一条直线,在小压力范围内,为一弯曲段,然后近似成为一直线。这个非线性区并不稳定,每次换辊都会 1. The concept of mill stiffness Rolling mill stiffness is one of the most important performance parameters of the mill, which is closely related to the quality of the rolled steel plate, in the rolling mill adjustment operation, the roll gap setting, the thickness control and the new mill design To use the concept of mill stiffness. In order to find out a factory φ170 / φ100 × 350mm three-stand tandem cold mill mechanical properties, improve even the roll gap adjustment precision and product quality (thickness and shape of the control level), and to further improve the rolling process and mining system Equipment potential, conducted a measurement study. During rolling, the rolling force is transmitted to the frame through rolls, bearings, press screws, etc. The stressed parts of the rolling mill are elastically deformed under the action of the rolling force. Therefore, the mill when the actual force between the gap when the load is larger than the no-load, mill roll gap increases the amount known as the bouncing value. The curve that reflects the change of the bouncing value with the rolling force is called the elastic curve of the roll. It is not a straight line. It is a curved section in a small pressure range and then approximates a straight line. This non-linear zone is not stable, each roll change will be