Because of the collision between lap of strip steel and unit roller,too big an impact occurs during the initial coiling of previous coiler of hot rolling.

• 以往热轧卷取机在卷取开始时,由于带钢头部搭头部位与助卷辊发生冲撞,产生过大的冲击。笔者参考实际现场卷取工艺,研制了电液踏步控制系统,以实现助卷辊对台阶的自动回避。