The Study Of The Computer Control System Of A Single Stand Skin Pass Mill

Temper is the final critical process in ensuring the finished quality of cold rolling strip. As the only deformation target, elongation has utmost importance in ensuring interior structure property of strip to meet the requirements of users.(1)This thesis establishment at research item, combine Skin pass mill system craft and actual problem, combine control theories to carry on studying calculator control system;(2) Overview the development history of Skin pass mill, introduced the craft characteristics of the process in Skin pass mill detailedly, elaborated the importance of elongation control in Skin pass rolling;(3) Analyzed the factor of elongation fluctuate in Skin pass rolling, analyzed the relation between elongation fluctuate and roll force, and developed a set of practical elongation feedback control system according to this;(4) Aim at the elongation feedback control system's function is worse during the period of accelerating, developed elongation forwardback control system, used for compensating in elongation fluctuate cause of the rolling speed changes.According to above research of the elongation control,the Skin pass mill adopte the PLC of the ABB company and its elongation control system.Given the hardware configuration,network structure and software frame. The production practices show that the automation system of the single-stand Skin pass mill is advanced,the function is perfect, the performance is good. Can promise to produce normally and require of the product output and the quality, and have the characteristics of its own, can be taken into expanding in actual production.