二十辊轧机轧制极薄带的板形控制

发布时间：2018-06-25 05:45

本文选题：二十辊轧机 + 辊间压扁　；参考：《中南大学学报(自然科学版)》2017年04期

【摘要】：针对二十辊轧机辊间压扁计算误差较大的问题,将轧辊视为有限长度的半无限体,基于边界积分方程法建立1个精确的辊间压扁模型;基于该辊间压扁模型、耦合轧辊弯曲模型,轧件塑性变形模型、建立更精确的二十辊轧机板形控制耦合模型。基于该二十辊轧机板形控制耦合模型,针对极薄带轧制工况,分析二十辊轧机第一中间辊锥度、轴向移动、不同压下量等因素对带钢出口厚度、轧制力分布、辊间压力分布等的影响规律,并通过实验方法验证该理论模型的正确性。研究结果表明:第一中间辊的锥度和轴向移动对板形控制具有较大的影响,而且辊缝形状的微小改变会引起板形产生较大变化。
[Abstract]:In order to solve the problem that the calculation error of flattening between rollers in 20-high mill is large, the roller is regarded as a semi-infinite body with finite length, a precise model of flattening between rollers is established based on the boundary integral equation method, and the flattening model between rollers is established based on the model. Coupling roll bending model and plastic deformation model, a more accurate coupling model for shape control of 20-high rolling mill is established. Based on the coupling model of strip shape control for the twenty high rolling mill, this paper analyzes the distribution of rolling force and taper of the first intermediate roll of the twenty high mill on the thickness and rolling force of the outlet of the strip, such as the taper of the first intermediate roll, the axial movement, the different reduction of the strip, and so on. The influence law of the pressure distribution between rollers, and the correctness of the theoretical model is verified by the experimental method. The results show that the taper and axial movement of the first intermediate roll have a great influence on the shape control of the plate, and the small change of the shape of the roll gap will lead to the great change of the shape of the plate.
【作者单位】：燕山大学国家冷轧板带装备及工艺工程技术研究中心;徐工集团江苏徐州工程机械研究院;
【基金】：国家自然科学基金资助项目(51474190) 河北省自然科学基金资助项目(E2015203311)~~
【分类号】：TG333

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