Method for operating an annealing furnace

US11230749B2 · kind B2 · utility

Assignee

• SMS group GmbH · DE

Inventors

• Thomas Daube · Duisburg, DE
• Markus Jaenecke · Solingen, DE
• Lutz Kümmel · Jüchen, DE
• Ulrich Sommers · Düsseldorf, DE
• Alexandre Lhoest · Eupen, BE

Key dates

• Filing date: Jun 5, 2018
• Grant date: Jan 25, 2022
• Expiry date: Jan 20, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D2019/0059
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for operating an annealing furnace to anneal a metal strip provides that, initially, at least one target material property (MPTarget) is specified for a point or a section of the metal strip after passing through the annealing furnace. In addition, information (E) on the metal strip is provided before or in the annealing furnace. A calculation of a target temperature distribution (TTarget) and/or a target speed (VTarget) of the metal strip in the annealing furnace is then carried out with the assistance of a computer-aided model as a function of the target material properties and the specified information. The target temperature distribution and/or target speed calculated in this manner is/are subsequently set in the annealing furnace in order to transfer the material property of the metal strip behind the annealing furnace to the desired target material property MPTarget.