method for controlled cooling of hot rolled strip modellgestütztes or plate in a rechnergeführten rolling and kühlprozeß

摘要

the invention concerns a method for controlled cooling modellgestu00fctztes in controlled rolling and ku00fchlprozessen of hot strip or plate which, after controlled rolling temperature ranges in which no recrystallization takes place and in which the fabric of stabilised austenite is controlled according to a set ku00fchlkurve chilled.by providing with a defined speed through the cooling unit is being transported.$a erfindungsgemu00e4u00df is a metallphysikalisches process model, which is a werkstoffmodul for calculation of time temperature transformation diagram (ztu diagrams) in dependence on the chemical composition and the forming and ku00fchlparameter contains and that both the setup calculation to identify ttlung the necessary water quantity and distribution within the cooling stage to carry outas the dynamic fu00fchrungsgru00f6u00dfenverlauf identified, and the cooling is controlled so that the ku00fchlkurve in calculated time temperature transformation diagram of the cooling material between the nasenpunkten of ferrite orperlitumwandlungskurve is that as ku00fchlergebnis a ferritic - bainitisches fabric with each pre calculated relationship between these two structural components in steel is formed.