Method for locating roll-gap-opening no-load channeling roll of UCM rolling mill

Abstract

The invention discloses a method for locating a roll-gap-opening no-load channeling roll of a UCM rolling mill. The method comprises the following steps that 1, a rolling mill HGC control system is started, so that a roll gap between an upper work roll and a lower work roll is maintained to allow a belt to penetrate through, the roll bending force of the work rolls is set to be maximum, and the roll bending force of an intermediate roll is set to be balance force; 2, after the speed Vw of the rolling mill is increased to a preset speed and is stabilized, the intermediate roll is played according to the channeling roll value, the channeling roll speed of the intermediate roll is Vs until the axial position of a mill roll reaches the preset channeling roll value; 3, the channeling roll of the intermediate roll reaches the channeling roll value, after the channeling roll speed is reduced to 0, the speed of the rolling mill starts to slow until reaching 0, and the channeling roll locating is completed. The channeling roll of the UCM rolling mill is located safely and efficiently, the mill roll is prevented from be scratched, a poor plate shape is avoided, the workload of workers is lightened, and work efficiency is improved.

Description

technical field [0001] The invention relates to a rolling mill roll shift positioning method, in particular to a UCM rolling mill open roll gap no-load roll shift positioning method. Background technique [0002] The UCM rolling mill utilizes the roll shifting of the intermediate roll to increase the lateral stiffness of the rolling mill and enhance the shape control ability of the rolling mill. At present, there are generally two ways to realize the roll shifting positioning of the intermediate roll: 1) In the stop state, the roll surface is completely separated, and the intermediate roll or the work roll is manually operated to move to the set value; 2) During the rolling process, the load state Next, online automatic roll shifting. The first method is cumbersome to operate and takes a long time; the second method is easy to adjust, but it can only be adjusted during the rolling process. During the adjustment process, the plate shape is not easy to control, and the rolls ...

AI Technical Summary

Problems solved by technology

Therefore, the problems of complex roll shifting operation, extra production time, difficulty in adjusting the plate shape and easy scratching of the rolls during the roll shifting process are solved.

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