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A Fuzzy Shape Control Method for Stainless Steel Strip on Sendzimir Rolling Mill

HUR Yone-gi , CHOI Young-kiu

钢铁研究学报(英文版)

The strip shape in the stainless steel process has made an issue of the strip quality. The objective of the shape control is to minimize the shape deviation and to maintain symmetrical shape patterns in the lateral direction. The method of the shape recognition employs the least square method. The shape deviation is controlled by the fuzzy shape controller (FSC). The experiments have been performed online for various stainless materials, thicknesses, and strip widths. The test results show very efficient performances in respect of stable target tracking and symmetrical and minimal fluctuation of the strip shape.

关键词: shape control , fuzzy control , stainless steel , Sendzimir mill

热轧宽带钢厚度及轧制力横向分布的研究

王连生 , 杨荃,何安瑞,王晓晨,刘天武

钢铁

板形是板带几何尺寸的一个重要指标,忽略横向变形的二维轧制理论已不能满足板形精度要求,掌握金属三维变形规律,建立各因素与出口带钢厚度分布之间的关系,可准确地进行板形设定。基于理论基础,应用影响函数法实现辊系变形计算,三维差分法求解轧件塑性变形,辊系变形向轧件变形提供出口厚度分布,轧件变形向辊系变形提供轧制力横向分布,两者相互迭代求得厚度分布结果。结合现场实际,验证了模型的准确性,为在线计算出口辊缝提供了思路和依据。

关键词: 板形控制 , threedimensional difference , rolling pressure distribution

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