Brief Introduction of Pressure Model for Packaging Steel Strip Rolling

Brief introduction of pressure model for packaging steel strip rolling
　　 On a manually operated rolling mill, the calculation accuracy of the rolling force directly affects the accuracy of the rolling mill adjustment, which has a significant impact on the thickness accuracy, strip shape quality, operation and various consumption of the product. On computer-controlled rolling mills, one of the main uses of the pressure model is to set the roll gap, which is the basis for computer control and requires higher forecast accuracy.
　　Using the usual engineering calculation method, that is, according to the cold rolling pressure theory and practical experience, select a pressure formula and the empirical value of material deformation resistance and friction coefficient to calculate the rolling force. It is difficult to ensure the calculation accuracy of the rolling force. , More difficult to use for computer control. In order to improve the calculation accuracy of rolling force and carry out computer control, it is essential to establish an accurate pressure model.
　　 The most commonly used method to establish a cold rolling pressure model is to select an appropriate pressure formula as the basis, and match it with two sub-models-the material deformation resistance model and the friction coefficient model through the test-statistical method. The mathematical model established in this way is called a theoretical-statistical model. The Hill formula has a clear physical concept, reasonable structure, simple calculation process, and can ensure its forecast accuracy by establishing a high-precision sub-model, so it is the most widely used.