Rolling force and rolling temperature mutual iteration calculating method

Abstract

The present invention relates to a rolling force and rolling temperature mutual iteration calculating method. After a rolling force is primarily calculated, corresponding roll flattening radius and rolling temperature are calculated according to the rolling force; according to the rolling temperature obtained by calculation, deformation resistance and a friction coefficient are calculated so as to fulfill the aim of calculating the rolling force according to the rolling temperature; then the sequentially calculated rolling forces are compared to be determined whether to be equal; if the sequentially calculated rolling forces are different a little, i.e. the convergence condition is reached, iteration is completed; and the rolling force and the rolling temperature which are obtained by final calculation are used as calculation results. If the convergence condition is not reached, the roll flattening radius and the rolling temperature are calculated again according to the calculated rolling force, then the rolling force is calculated again according to the rolling temperature, and the convergence condition is rejudged whether to be reached. According to the present invention, the facts that the rolling force and the rolling temperature are mutually influenced in the actual production process and thermal mechanical coupling exists are considered; and by a numerical iteration method, the calculating processes of the rolling force and the rolling temperature are used as one whole body and the objective condition of mutual influence of the rolling force and the rolling temperature is reduced so as to simultaneously improve prediction accuracy of rolling force and rolling temperature models.

Description

technical field [0001] The invention relates to a calculation method for mutual iteration of rolling force and rolling temperature. Background technique [0002] In the hot rolling process of steel plate, the rolling schedule is one of the most basic contents of the hot rolling production process. The quality of the rolling procedure directly affects the difficulty of subsequent control and determines the quality of the final product, so formulating a reasonable rolling procedure is of great significance to improving the quality of steel strip production. To formulate a reasonable rolling schedule, an accurate mathematical model is the key. Among them, the rolling force prediction model and the rolling temperature prediction model are the key models in the process of formulating rolling regulations. Accurate prediction of the rolling force and rolling temperature in the steel plate rolling process is the most basic guarantee for the reasonable formulation of rolling regula...

AI Technical Summary

Problems solved by technology

However, in the prior art, when calculating rolling force and rolling temperature, the two models are calculated separately, artificially separating the mutual influence of rolling force and rolling temperature, resulting in the predicted rolling force There is a certain error between the rolling temperature and the measured value

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