摘要
为了改善国内某热轧厂宽度控制稳定性和精度,在对原有模型和质量问题分析基础上,针对粗轧宽度模型实施了模型架构、模型算法、模型参数、自学习方式、短行程控制以及宽展预测模型的改造和优化。对钢种层别进行细分,自适应参数考虑了不同轧制生产模式的影响,带钢的头尾短行程控制曲线采用了可变多点方式,增加了立辊孔型模型以及立辊磨损模型,在宽展计算时考虑孔型的影响磨损量的贡献,提高了宽度模型预报精度。实际应用结果表明,经过优化改良的宽度模型有效提高了宽度控制稳定性和产品精度。
In order to improve the stability and accuracy of strip width for a hot strip mill, based on the analysis of the old roughing mill width calculation models and quality control problems, some modifications and optimizations have been made to the rough rolling width control model in steel grade classification, model calculation flow, model parameters, adaptation method, SSC and width prediction. Specifically, the rolling material is classified into more specific lots, the effects of different production modes on the adaption parameters are taken into account, a multipoint SSC curve is built, and a new model for edger roll pass and edger roll wear is added. Through these measures, the width reduction prediction becomes more accurate. It turns out that the newly optimized width calculation model has truly helped the plant to achieve a better performance in the stability and accuracy of strip width control.
出处
《宝钢技术》
CAS
2012年第4期65-68,共4页
Baosteel Technology
