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Optimization of Short Stroke control Preset for automatic width control of Hot Rolling Mill

Journal of Iron and Steel Research International 2010年第6期17卷 16-20页

作者： DU Xiao-zhong YANG Quan LU Cheng WANG Ai-li Tieu A Kiet National Engineering Research Center for Advanced Rolling Technology University of Science and Technology Beijing Beijing 100083 China School of Materials Science and Engineering Taiyuan University of Science and Technology Taiyuan 030024 Shanxi China School of Mechanical Materials and Meehatronic Engineering University of Wollongong Wollongong NSW 2522 Australia

automatic width control is a key issue in hot strip rolling process. The edge rolling has been widely used in the roughing stand of hot strip mill to control the width of the slab. However, the edge rolling and consequent hori- zontal rolling will cause a significant width change in the head part and tail part of the slab, which have to be trimmed before the finishing stands. Based on the width reduction deformation curve of the head and tail along the longitudinal direction of slab, the short stroke control （SSC） technology has been developed to overcome this problem. The finite element method has been used to simulate the unsteady edge rolling process. Three short stroke control curves have been compared in order to obtain the best width control result. The optimized short stroke control curve has been ap- plied to the automatic width control system of industrial hot rolling mill, and good performance is obtained.

关键词： unsteady rolling edge rolling short stroke control automatic width control LS-DYNA

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Research on the Gap Setting Model of Short Stroke control System in Hot Edge Rolling

Research on the Gap Setting Model of Short Stroke Control Sy...

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2011 Chinese control and Decision Conference（CCDC）

作者： Tan Shubin1,2,Li Long2,Liu Jianchang2 1) Key Laboratory of Integrated Automation of Process Industry,Ministry of Education,Northeastern University,Shenyang 110819,China 2) College of Information Science and Engineering,Northeastern University,Shenyang 110819,China

According to the phenomenon of width losing in slab end,the spread of slab end including edger pressing,dog bone spread and nature spread,short stroke control was used in 2300 hot strip roughing *** parabola model has been proposed in this article,because of the disadvantage of broken line used by 2300 hot strip mill,and the online implementation plan of parabola model has been *** broken line model and the parabola model have been contrasted by simulation,which indicates that the control effect of parabola model is better than the broken line model.

关键词： short stroke control hot strip rolling automatic width control

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