PLC在平整拉矫机控制系统上的应用

Application of PLC in Control System of Temper Mill and Tension Leveller

由于钢板沿纹理方向上应力不均,产生板型缺陷,需要使用平整拉矫机沿板材长度方向施加超过材料屈服极限的应力才能得到平整的板材。拉矫机的作用就是通过一定的张力使钢板产生延伸修正板型,改变应力分布,提高产品的平整度;平整机的作用则是提高带钢机械性能、改善带钢板形、调整带钢表面粗糙度,从而获得符合要求的钢卷。在介绍平整拉轿机电气控制系统构成的基础上,对各部分的控制功能进行说明,阐述各部分控制功能实现的方法。

Because of the uneven stress along the texture direction of the steel plate,the shape defect occurs.In order to get a flat sheet,it is necessary to apply stress beyond the material yield limit in the length direction of the sheet by using the temper mil and tension leveler.The function of tension leveller is to make the steel plate elongate through a certain tension to correct the plate shape,change the stress distribution and improve the flatness of products.The function of temper mill is to improve the mechanical properties of strip steel,improve the shape of strip steel and adjust the surface roughness of strip steel to obtain the required coil.This paper introduces the composition of the electric control system for temper mill and tension leveler,the control functions of each part are described in detail,and the methods of realizing the control functions of each part are elaborated.