激光测速在冷轧带钢厚度控制中的应用

Application of Laser Velometer in Thickness Control of Cold Strip

带钢厚度控制是冷轧带钢生产中最重要的控制环节。由于采用常规控制手段无法获取精确的前滑值,不能实现精确的秒流量控制,因此,越来越多的冷连轧机配备了新型的激光测速仪参与带钢的厚度控制。通过激光测速仪,可以在原有的带钢厚度控制系统中增加秒流量预计算控制功能,并且参与速度调节控制和反馈调节控制,提高厚度控制的精度。

Strip thickness control is one of the most important control links in cold strip production. The accurate mass-flow control could not be realized, for the exact forward slip value could not be obtained in normal control way. Because of this, more and more tandem mills are equipped with new laser velometers to jointly control strip＇ s thickness. With laser velometers, a new function named pre-set mass-flow calculation can be added to the normal strip thickness control system, which can be used to participate in the speed adjustment and feedback adjustment control. It will improve the accuracy of the strip thickness control system.