Abstract:
For the purposes of reducing power consumption and rolling time in rolling processa new method of devising the schedules for a twenty-high reversing coiler tensionstrip rolling mill of ROHW type by dynamic programming is discussed in this paper.In this method the effects of the drafts,the roll velocities,the coiler tensions andthe number of passes set in the rolling process on the power consumption and therolling time of the mill are considered simultaneovsly,taking account of the constraints from equipment limitation and process requirements.In comparision with empirical schedules used on the mill in the past,our theoretical results by computationshow that the optimum shedules hare reduced the power consumption by 6%~11% and saved the rolling time by a large quantity,while strip shape and other measureshave still improved significantly.Furthermore,the correctness of our the oreticalresults has been shown by the samples from real plant experiments.