Tension Control On Cold Continuing Roll Mill In Accelerate And Decelerate Process

Tension control is the most important control of cold-rolled strip product quality control, as the strip of User and continuous improvement in the quality requirements, the strip rolling process and Tension control become increasingly important to improve. The high-precision cold rolling thickness of the automatic control technology abroad has reached a higher level of our country in this regard also yielded results, but with the developed countries there are still gaps.This issue to a 1220mm cold rolling steel mill equipment in the background in order to rack 5, four-high cold rolling mill unit production line for the study, the use of kinematics and mechanics in order to speed - as the central ideological and optimization of tension, starting from the spring equation , An analysis of cold rolling tension in the theoretical model, given the tension in a controlled manner, and to build the aircraft in the strip mill rolling on the model.By studying the speed of rolling bearings on the film thickness and deformation zone friction coefficient impact has been bearing oil film thickness and deformation zone coefficient of friction caused by changes in the thickness of the thickness of the poor compensation; changes in the study of tension caused by changes in the rolling force, rolling with the changes in the calculation of tension Adjust the thickness of pieces of the relationship between the establishment of tension-control system model as a control on the basis of theoretical models. By studying the rolling speed and tension with the changes in the relationship between the thickness of the rolled piece to discuss with tension control approach to offset the speed of change on the thickness of the impact of the establishment of the equation. Based on the above mathematical model, designed based on a fundamental thinking of the AGC control over the pace - Tension Controller. Finally, in the Matlab simulation environment, that quantitative increase in the speed - tension controller, to add to the slowdown in the process of tension to achieve good control, finally satisfied with the accuracy of the thickness.