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文章采用数值模拟和物理模拟相结合的方法,研究了SP(Sizing Press)侧压调宽过程中板坯的变形规律、SP侧压变形后板坯形状的特征、不对称变形条件和侧压量对板坯尾部翘曲的影响规律以及板坯形状对后续水平轧制后轧件板形的影响。研究结果表明,SP侧压变形过程中,板坯的变形是不均匀的。侧压后板坯的形状具有板坯头尾呈鱼尾形;横截面呈狗骨状;板坯宽度呈周期性变化,侧面形成压痕,板坯侧面厚度也相应呈周期性变化;垂直方向的不对称变形条件容易造成板坯尾部翘曲;产生尾部翘曲的板坯经过水平道次轧制后,会造成尾部宽度增加;SP侧压后板坯的宽度波动会引起水平轧制后轧件的宽度波动等特征。
In this paper, the numerical simulation and physical simulation are combined to study the deformation law of the slab during SP (Sizing Press) side widening, the characteristics of slab shape after SP lateral deformation, asymmetric deformation conditions and lateral pressure The influence law of the tail warpage of the slab and the influence of the slab shape on the shape of the rolled plate after the subsequent horizontal rolling. The results show that the deformation of slab is not uniform during the lateral compression deformation of SP. The shape of the slab after the lateral pressure has the shape of a fishtail at the head and the tail of the slab, the dog bone shape in the cross section, the width of the slab changes periodically, the indentation is formed on the side, and the thickness of the slab also changes cyclically correspondingly; Asymmetric deformation conditions easily lead to the warping of the tail of the slab. The tail warpage of the slab after tail warping will increase the width of the tail tail. The width fluctuation of the slab after the lateral pressure of SP will cause the rolling of the horizontally rolled strip The width of the fluctuations and other characteristics.