Method and system for the open-loop and/or closed-loop control of a heating of a cast or rolled metal product
AssigneeSMS group GmbH
InventorsThomas HEIMANN, Heinz-Juergen OUDEHINKEN, Christoph HASSEL
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Abstract
A method for open-loop and/or closed-loop control of a heating of a cast or rolled metal product, includes the steps of determining the total enthalpy of the metal product from a sum of the free molar enthalpies (Gibbs energy) of all phases and/or phase fractions currently present in the metal product; determining a temperature distribution within the metal product by means of a dynamic temperature calculation model using the total enthalpy determined; and open-loop and/or closed-loop controlling of the heating of the metal product as a function of at least one output variable of the temperature calculation model.
Claims6
A method for open-loop and/or closed-loop control of a heating of a cast or rolled metal product, comprising the steps of:
- inserting the metal product into a furnace or heater and heating the metal product in the furnace or heater in a heating process;
- with an open loop and/or closed loop control device operatively connected with the furnace or heater and adapted for open-loop and/or closed-loop control of the heating process, performing the following steps
- determining a total enthalpy of the metal product from a sum of the free molar enthalpies (Gibbs energy) of all phases and/or phase fractions currently present in the metal product;
- determining a temperature distribution within the metal product by means of a dynamic temperature calculation model using the total enthalpy determined;
- and
- open-loop and/or closed-loop controlling of the heating of the metal product as a function of at least one output variable of the temperature calculation model.
Dependencies are inferred from the claim text.