Method for controlling a cooling device in a rolling train

US12226814B2 · kind B2 · utility

Assignee

• SMS group GmbH · DE

Inventors

• Thomas Heimann · Iserlohn, DE
• August Sprock · Dressendorf, DE
• Christoph HASSEL · Duisburg, DE
• Heinz-Juergen Oudehinken · Essen, DE

Key dates

• Filing date: Jun 24, 2020
• Grant date: Feb 18, 2025
• Expiry date: Aug 3, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B2038/004
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method for controlling a cooling device which is set up to control temperature of a rolling stock such as a metal strip, which runs through a cooling device along a conveying direction of a rolling train. The cooling device is arranged upstream of the rolling train. The method includes determining total enthalpy of a system formed by the rolling stock; determining a measure for the formation of scale, which includes a scale factor that depends on chemical composition and surface temperature of the rolling stock, and a heat transfer coefficient of the scale; calculating a temperature distribution and/or average temperature in the rolling stock based on a temperature calculation model, in which the determined total enthalpy and the measure for the formation of scale are included; and setting a cooling capacity of the cooling device taking into account the calculated temperature distribution and/or average temperature in the rolling stock.