基于张力减径机转矩反馈自适应调整CEC触发时间的方法  

A Torque Feedback-based Method for Self-adaptive Adjustment of Crop End Control Triggering Time of Stretch Reducing Mill

作　　者：龚强 GONG Qiang(CISDI Information Technology Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]中冶赛迪信息技术(重庆)有限公司,重庆401122

出　　处：《钢管》2023年第4期36-40,共5页Steel Pipe

基　　金：中冶“181计划”重大研发项目智能车间关键技术(90310210)。

摘　　要：钢管头尾进入张力减径机的轧制时间的准确性对张力减径机管端壁厚控制模型的准确性至关重要,由于在张力减径机难以安装检测钢管头尾壁厚的传感器形成有效的反馈机制,从而降低了张力减径机管端壁厚控制模型的应用效果。建议引入主电机的转矩作为咬钢和抛钢的反馈判断依据,同时引入钢管的头部尾部跟踪滤掉多余的转矩波动。根据实测的咬钢、抛钢时间,送入队列计算移动平均得到CEC修正值,使得CEC可以在钢管咬钢、抛钢时准确触发,降低钢管头尾切损。该方法在实践中获得验证,切实可行。The accuracy of the rolling time when the tube head and tail enter the stretch reducing mill(SRM)is very important to the accuracy of the model for SRM crop end control(CEC).Since it is difficult to install the sensor to detect the wall thickness of the tube head and tail to get effective feedback mechanism,the application efficiency of the said model is reduced.It is suggested to introduce the torque of the roll motor as the basis for the judgment of the feedback of tube bite and casting,and meanwhile to introduce the function of tracking tube head and tail so as to filter the surplus torque fluctuation.Based on the actually-measured time for tube bite and casting,the data are sent into the queue to calculate the moving average value of the CEC correction value so as to get the CEC model accurately trigged as per the time for tube bite and casting to reduce the crop loss.The feasibility of this method is verified via relevant practice.

关 键 词：无缝钢管 张力减径机 管端切头控制 自适应调整 触发时间 转矩 

分 类 号：TG335[金属学及工艺—金属压力加工]