Process method for controlling cross creases at head and tail of strip steel

The invention provides a process method for controlling cross creases at the head and the tail of strip steel, which is characterized in that the diameter of an anti-bending roller of an uncoiler of a unit is designed to be 154mm, and the pressure, the angle and the wrap angle mode of the anti-bending roller of the uncoiler are optimized and debugged; and meanwhile, in the uncoiling, threading and drifting processes, the unit is provided with a pinch straightener capable of providing tension. According to the process method, the technical problem that a pickling and flattening product of the endless rolled ultra-thin hot-rolled strip steel is seriously cut off due to head and tail cross crease defects is solved, the yield of the product is increased, and the market competitiveness of the product is improved. 本发明提供了一种控制带钢头尾横折纹的工艺方法，该所述工艺方法中将机组开卷机反弯辊直径设计为154mm，且对开卷机反弯辊压力、角度、包角模式进行优化和调试；同时开卷穿带和甩尾过程中，机组布置可提供张力的夹送矫直机。该工艺方法解决了无头轧制的极薄热轧带钢的酸洗平整产品因头尾横折纹缺陷切除严重的技术问题，提高了产品成材率，提升了产品市场竞争力。