Research On Shape Control And Technological Parameters Of UCM Temper Mill

For temper rolling strip in the working site, the real timely control of shape is very meaningful and important. And this control is usually based on the preset model of strip. This paper is in the background of a UCM temper mill. And develop the calculation module of rolls in elasticity deformation by influence function. Mainly do some research on the shape of strip, distribution of unit rolling force along the width of the strip, distribution of pressure and flattening about rolls, and the influence of different technological parameter to the shape of strip.The main job in this paper is as follow:(1)According to the working site and the collected data, establish proper deformation resistance model and rolling force model.(2)According to the influence function method, discrete the rolls and strip, then calculate the elasticity deformation of rolls, get results of pressure and flattening about the rolls.(3)Take use of the relationship of force and deformation between work roll and the strip, calculate unit rolling force distribution along the width of strip and the shape distribution of strip after temper rolling.(4)Calculate the elasticity deformation of rolls in the condition of changing technological parameters, which are including different bending force on work roll and intermediate roll, strip in different width, strip in different thickness, and different axial movement of intermediate roll. Then analyze the influence to strip shape by the change.(5)By using ANSYS to do static analysis of the rolls, get the results of stress distribution in the contact length of rolls, then compare the simulation results with the results calculated by the developed calculation module of rolls.Using CQ2strip as an example, calculate the elasticity deformation of rolls. Get the relevant results, the shape of strip fits the actual situation. The Percentage of error between rolling force calculated by calculation module of rolls and real rolling force in the working site is9.6%, which is on request of less than10%in the working site, by calculating the elasticity deformation of rolls in the condition of changing technological parameters, get the results of shape of strip distribution, unit rolling force distribution along the width of the strip, pressure and flattening distribution about the rolls, which can guide the on-site setup. The distribution of stress calculated by ANSYS and the calculation module of rolls is accordant; it can prove the correctness of calculation module of rolls.