Mathematical Model of the Accelerated Cooling of Metal in Thick-Plate Hot Rolling

The paper describes the issues in predicting the consumer properties of thick-plate pipe products manufactured at the hot rolling mill 5000 of the Magnitogorsk Iron and Steel Works. The modeling of the thermal state of the billet on the mill train during the controlled rolling with subsequent accelerated cooling is also discussed. The work is mainly focused on the construction of a layer-by-layer cooling trajectory of the billet during accelerated cooling. Some results obtained by this model are compared with those of experimental rolling under the current conditions of the production facility.