Research on the shape of the slab after Sizing Press

Adopting FEM and experimental method,the deformation of the slab during Sizing Press(SP) is analyzed.The characteristics of the slab shape after SP,and the influence of the un-symmetry factor and the width reduction on the warp at the end of the slab are investigated.The influence of the slab shape after SP on the slab shape after rough rolling is discussed.The results show that,the deformation of the slab is un-symmetry during SP;the characteristics of the slab shape after SP are as follows:the head and the end of the slab appear fish-tail;the cross section of the slab shows dog bone;the width of the slab is periodical variation,and press marks appear at the side faces of the slab,the thickness of the slab's side is also periodical variation corresponding to the press marks;the end of the slab warps easily for the un-symmetry conditions along the vertical direction;the warp after SP causes the width of the slab end increasing after following rough rolling;and the width fluctuation of the slab after SP causes the width fluctuation of the slab after rough rolling.