Evaluation of Rolls Sizing on the Basis of the Metal Ductility and Power Consumption for Deformation
Rolling profiles section mills produced in calibers of square or rectangular pieces. From the amount of reduction depends on the caliber and shape of the stress state of the metal in the deformation and energy costs for rolling. The value of the longitudinal and transverse strain profile determines the level of tensile stresses on the surface of roll. Under the action of tensile stress may impair the continuity of the metal surface. For each steel grade has a limit of deformation, the excess of which will lead to the destruction of the surface of roll. The ratio of the current strain to the limit determines the extent to which the stock of a deformable metal plasticity. The utilization of the rolling stock of plasticity refers to the probability of formation of defects on the surface of the metal. Simulation modes rolling, estimation of plastic properties of metal and power consumption can reasonably approach the selection of an optimal system calibration.