冷轧板形测量值计算模型的研究与应用  

Research and Application of the Flatness Measurement Calculation Model on Cold Rolling Mill

作　　者：王鹏飞[1] 张殿华[1] 刘佳伟[1] 王军生[2] 俞小峰[2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110004 [2]鞍钢股份有限公司,鞍山114001

出　　处：《机械工程学报》2011年第4期58-65,共8页Journal of Mechanical Engineering

基　　金：国家自然科学基金重点资助项目(50534020)

摘　　要：为了得到准确的板形测量值,通过分析板形辊的结构与板形测量原理,制定板形测量信号的标定及滤波处理方法。为了补偿带钢横向厚差对板形测量的影响,建立轧后带钢横向厚度分布模型,把各个测量段处的带钢厚度引入张应力分布计算模型中,提高了带钢张应力分布计算的精度。根据带钢与板形辊的接触状态设定带钢边部板形测量值的补偿计算模型,用于修正未被带钢边部全部覆盖的传感器所测径向力。针对轧制过程中板形辊上某些传感器会出现故障的情况,制定故障测量段的插值计算方法。给出由各测量段板形测量值向若干个特征点处板形值的转换模型,简化板形控制系统中的数据处理过程。板形测量值计算模型已用于1450冷连轧机的板形控制系统改造中,经现场应用表明,模型具有较高的精度,为冷轧板带生产实现精确的板形控制提供条件。In order to obtain accurate flatness measurement,the calibration model as well as filter calculation of measured flatness signal are set by analysis of the principle and configuration of shapemeter roll.The model of thickness distribution across strip is set,from which the calculation precision of stress distribution across strip is improved by taking into account of thickness difference across strip.For the purpose of correcting measured flatness in edge of strip,the correction model of flatness measurement in edge of strip is established by analysis of the contact situation between strip and shapemeter roll.In case of transducer failure after long time running,the interpolation model of dummy segments is set.In addition,the transformation model of measured flatness from covered segments to several characteristic points is given so as to reduce complexity of data processing in flatness control system.The practical applications on the 1450 tandem cold mill show that this model is with excellent accuracy and provides a basis for flatness control.

关 键 词：板形测量 板形辊 板形控制 冷轧 

分 类 号：TG335.5[金属学及工艺—金属压力加工]