轧件塑性系数的计算方法及其误差分析  

Methods for Calculating Plastic Coefficient of Rolling Stock and Their Errors

作　　者：江连运[1] 赵春江[1] 张进之 黄庆学[1] 于晓凯[1] 

机构地区：[1]太原科技大学机械电子工程学院,山西太原030024 [2]中国钢研科技集团公司,北京100081

出　　处：《机械工程与自动化》2011年第5期102-104,共3页Mechanical Engineering & Automation

摘　　要：在冷轧薄带钢和带钢平整时,轧件的塑性系数的准确性直接关系到控制系统的稳定性和带钢成品的质量。根据压力AGC控制系统的原理,得出了轧件塑性系数的计算公式,并将该公式与根据辊缝变化量和压力变化量之间的关系推导出的塑性系数的计算公式进行误差大小的比较,证明了由AGC参数方程得出的轧件塑性系数的计算精度较一般方法高,并经实验证实了理论分析的正确性。In the cold rolling process and the rubbing process,the accuracy of plasticity coefficient of rolled piece had affected the stability of control system and the product quality.Based on the principle of pressure AGC（Automatic Gauge Control）,the adjustment process of pressure AGC was studied and a formula used to calculate plastic coefficient of the rolling stock in the cold rolling process was obtained.Through analysis we find the formula is more accurate than the traditional method,which could be derived from the relation between the variance of the rolling gap and the variance of the rolling force.In the end,the paper proved that the error of the formula was much smaller than the traditional formula by an experiment.

关 键 词：压力AGC 塑性系数 误差 辊缝 

分 类 号：TG335.55[金属学及工艺—金属压力加工]