摘要
基于GM-AGC的控制方程,分析了轧机刚度、轧件塑性系数偏差对厚度控制调整量的影响,讨论了咬钢冲击、油膜厚度、偏心、轧制力偏差等造成钢板同板差的原因。采用轧机刚度非线性回归、轧件塑性系数实时计算和头部沉入、轧辊偏心、油膜厚度的补偿等措施,在国内某3 500 mm轧机上,实现了厚度10～30 mm的钢板同板差控制在40μm之内。
Based on the control function of GM-AGC, deviation of mill stiffness and fluctuation of plasticity coefficient on adjustment of AGC were analyzed, and other factors influencing on thickness distribution were discussed, including impact of biting, thickness of oil film, roll eccentricity, deviation of rolling force and so on. After non-linearity regression of mill stiffness, real-time calculation of plasticity coefficient and other compensation of impact and roll eccentricity and oil film thickness were adopted, thickness deviation on plate in range from 10 mm to 30 mm was controlled below 40 μm in some 3 500 mm mill line.
出处
《山东冶金》
CAS
2010年第4期20-22,共3页
Shandong Metallurgy
基金
国家自然科学基金资助项目(50604006)
关键词
中厚板
GM-AGC
同板差
厚度控制
plate
GM-AGC
thickness deviation on plate
thickness control
