The Techniques to Reduce Variations within One Plate  

减小同板差的控制技术

作　　者：梁启宏[1] 张迪生[1] 耿庆波[1] 陈锦娣[1] 

机构地区：[1]北京理工大学自动控制系

出　　处：《Journal of Beijing Institute of Technology》1996年第2期154+148-154,共8页北京理工大学学报（英文版）

摘　　要：Conventional techniques to control variations within one plate have been based on preset models and constant automatic position control (APC or pressure feedback automatic gauge control(PAGC).However.because of the rolling force prediction error in the preset models and of the inadequate response speed of dynamic system and of the eccentricity, etc.,the conventional method has not given satisfactory results, the statistics'variations within one plate are in range of 0.25-0.60 mm The authors have developed the techniques to control the variations, which are dynamic intelligent control of hydraulic screwdown system. synchronism control of hydraulic screwdown, eccentricity control method by rotary encoder and the curve of modulus of mill measured automatically, etc., The techniques were fully and successfully industrialized in The Plate Mill of Maanshan Iron and Steel Company and good results that variations are in range of 0.08-0.15min hare been obtained in that mill.惯用控制同板差的方法是以预设定模型为基础的恒辊缝自动位置控制（APC）或压力反馈自动厚度控制（AGC）．由于存在压力模型的预报误差、压下系统的动态响应时间及轧辊偏心等不利因素，上述控制方法不能获得满意的控制效果，同板差的统计结果一般在0．25～0．60mm范围内．在控制同极差方面开发了液压压下系统的动态智能控制与同步控制算法、由光电编码器构成的偏心控制方法、轧机刚度曲线在线自动测量等控制技术，并在马鞍山钢铁股份有限公司中板厂的中板轧机上获得工业应用，取得了同板差在0．08～0．15mm的控制效果．

关 键 词：automatic gauge control (AGC) rolling mills thickness control computer control 

分 类 号：TG334.9[金属学及工艺—金属压力加工]