The straightening effect of straightener can be improved along with the change of pitch. 采用改变节距的方法，提高矫直机的矫直质量。
The straigtening mathematics model and automatic control program for non-equal roller-space straightener at high temperature are advanced. 提出了非等辊距矫直机高温下矫直自动控制的数学模型和自动控制方案。
