Adjusting method for rough rolling center line

The invention discloses a rough rolling center line adjusting method, rough rolling comprises a first fixed width section, a second fixed width section, a first thinning section, a third fixed width section and a second thinning section which are sequentially arranged in the running direction of strip steel, and the method comprises the steps that a process section deviating in the plate blank rough rolling process is obtained; determining a process section needing to be adjusted according to the deviated process section; the deviation value of the target center line of the deviated process section and the center line of the slab in the deviated process section is obtained; and according to the deviation value, the target center line of the process section needing to be adjusted is adjusted. According to the method, the center line of the roughing mill can be adjusted online, so that the strip steel has a good plate shape. 本发明公开了一种粗轧轧制中心线调整方法，所述粗轧包括按带钢的运行方向依次设置的第一定宽段、第二定宽段、第一减薄段、第三定宽段和第二减薄段，所述方法包括：获取板坯粗轧过程中出现