It put forward 5 kinds improved forming components of longitudinal edge forming unit,i.e.a pair of bottom crossbeam of row rollers shall be longitudinally moved along rolling line direction.

• 提出了5种改进直缘成型部件结构的设想,即:排辊装置的一对下横梁应该能沿轧制线方向做纵向移动;排辊的角度可以调整;