冷轧带钢板形检测误差及异常信号补偿模型  

Compensation Model of Abnormal Signal and Shape Detection Error of Cold Rolling Strip

作　　者：杨利坡[1,2] 于丙强[1,2] 李荣民[1,3] 刘宏民[1,2] 杜长征 

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛066004 [3]河北钢铁集团衡水薄板有限公司,衡水051000

出　　处：《机械工程学报》2014年第6期30-38,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金(51305387);国家科技支撑计划(2011BAF15B03);河北省高等学校自然科学研究青年基金(Q2012104)资助项目

摘　　要：针对冷轧带钢板形检测通道的信号误差或异常等问题,基于接触式板形检测原理、压磁传感器及其电磁特性,建立板形检测误差及异常信号补偿模型。综合理论模型和中试数据,深入分析零点残存电压、带钢边部板形误差、检测辊挠度、安装精度等因素对原始板形信号的影响,解决板形信号不稳定的问题。以1050冷轧机为例,根据轧机配置和工艺参数,在线计算带钢起始和末尾通道号、边部信号误差、检测辊挠度误差等补偿量,制定满足在线板形控制要求的板形检测辊允许安装误差,提出异常信号紧急处理措施,防止板形误调事故,实现稳定轧制,有利于提高板形检测精度和板形控制精度。Point to the unusual problems in the detection process,for example of the channel failure and not continuous transverse shape signal,the shape detection error and the abnormal signal compensation model are established based on the principle of contactless shape detection,piezomagnetic sensor and its electromagnetic characteristics.Comprehensive theoretical models and test datum,the effects of technological factors on the original shape signal,such as the zero remaining voltage signal,the strip edge error,the detection roll deflection and its installation accuracy and so on,are analyzed to solve instability problem of the original shape signal.For example of 1050 cold rolling mill,according to the mill model configuration and the rolling parameters,the start and the end channel numbers,the edge error compensation amount,the deflection change and the logical installation accuracies of the shape detection roll could be online calculated by the model to meet requirements of the online shape control,and appropriate emergency measures are advanced to prevent serious mistakenly regulation accident of mill caused by abnormal signal,and to achieve stable carefree rolling and improve the shape detection precision and the shape control precision.

关 键 词：板形检测 零点漂移 异常信号 误差补偿 冷轧带钢 

分 类 号：TP211[自动化与计算机技术—检测技术与自动化装置]