Method for increasing the process stability, particularly the absolute thickness accuracy and safety of the installation, in case of hot rolling of steel materials or ferrous.

摘要

Method of increasing the process stability, particularly the absolute accuracy of the thickness and the safety of the installation, during the hot rolling of steel materials or non-ferrous, with small degrees of deformation (f) or small reductions considering yield hot (Re) in the computation of the set rolling force (Fw) and the respective adjustment position (s), wherein the elastic limit hot (Re) is determined depending on the processing temperature ( T) and / or the processing rate (PhIP) and is integrated into the function of the flow stress (kf, R) for determining the set rolling force (Fw) through the equation where a multiplicative model flow curve around the yield strength hot (Re) is determined transformation temperature (T) and processing speed (PhIP) according to Formula meaning: Re: Hot T yield: transformation temperature PhIP: speed transformation; bi; c: coefficients