Abstract：The main process parameters of tandem cold rolling are rolling force and forward slip, and the rolling force and the forward slip settings depends on the accuracy of the calculation of rolling deformation resistance and friction coefficient. The degree of deformation is an important factor of affecting the deformation resistance. The selected regression model of Deformation resistance after logarithmic transformation in to a linear function, Take the St14 steel produced by Anshan Iron and Steel as an example, use the actual data through least squares successive fitting of the coefficient of deformation resistance regression model, In the same rolled conditions, the friction coefficient obtained using three different methods, so that model can be identical well with the actual production data. Show that use of the three different deformation resistance regression model, respectively, into the iterative calculation formula of rolling force, The results show that obtained rolling force in line with the measured rolling force basically. Among them, The calculated rolling force of deformation resistance regression model which from Stone formula can make the average error small, Therefore, we can elect the best model of deformation resistance to be used in the actual production pre-set of rolling force and forward slip.
2010, Vol. 45 
