热镀铝锌机组产品力学性能预报技术  

Prediction technology for mechanical properties of hot-dip aluminum zinc plating unit products

作　　者：魏宝民 王孝建 白振华 WEI Baomin;WANG Xiaojian;BAI Zhenhua(Meisteel Technology Center,Academia Sinica,Baosteel,Nanjing 210039,Jiangsu,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,Hebei,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,Hebei,China)

机构地区：[1]宝钢股份中央研究院梅钢技术中心,江苏南京210039 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [3]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《中国冶金》2024年第1期116-123,共8页China Metallurgy

基　　金：河北省高等学校科学技术研究项目(CXY2023012);河北省重大科技成果转化专项(22281001Z);河北省科学技术研究与发展计划-科技支撑计划项目(23280101Z);辽宁省教育厅高等学校基本项目(LJKZZ20220040);中央引导地方科技发展资金项目(236Z1024G)。

摘　　要：针对热镀铝锌机组产品力学性能超差的问题,在对产品力学性能影响参数进行重要度分析和数据样本聚类分析的基础上,建立热镀铝锌机组产品力学性能BP神经网络预报模型,实现带钢屈服强度、抗拉强度与断后伸长率等力学性能参数在统计学意义上的计算。基于平整轧制机理模型,以变形抗力为桥梁,根据平整轧制过程中实时轧制力数据模型,反算出带钢出口处变形抗力的波动情况,以此对由BP神经网络模型预报得到的屈服强度、抗拉强度和断后伸长率进行修正,进一步形成了一套神经网络模型与物理冶金模型相结合的热镀产品力学性能预报技术。将此技术应用到了某钢厂热镀铝锌机组生产现场,为该机组生产工艺的制定提供了理论依据。Aiming at the issue of poor mechanical properties of hot-dip aluminum zinc plating unit products,based on the importance analysis and data sample clustering analysis of influencing parameters for product mechanical properties,a BP neural network prediction model for mechanical properties of the hot-dip aluminum zinc plating unit product was established.The calculation of mechanical properties parameters such as yield strength,tensile strength,and elongation after fracture of the strip steel was achieved in statistical sense.Based on the flat rolling mechanism model and using deformation resistance as a bridge,the fluctuation of deformation resistance at the exit of the strip steel was calculated based on the real-time rolling force data model during the flat rolling process.Thus the yield strength,tensile strength,and elongation after fracture predicted by the BP neural network model were modified,and a set of mechanical properties prediction technology of hot-dip products combining neural network model and physical metallurgy model was further formed.The application of this technology to the on-site production of hot-dip aluminum zinc plating unit in a steel plant provides theoretical basis for the formulation of the production process of the unit.

关 键 词：热镀铝锌机组 力学性能 神经网络 变形抗力 预报 

分 类 号：TG174.4[金属学及工艺—金属表面处理]