Patent · US Active

Method for setting different cooling curves of rolling material over the strip width of a cooling stretch in a hot-strip mill or heavy-plate mill

US11779977B2 · kind B2 · utility

0Cited by

0References

7Claims

0Family size

Assignee

SMS group GmbH · DE

Inventors

August Sprock · Dressendorf, DE
Christoph HASSEL · Duisburg, DE
Carsten Andreas Klein · Düsseldorf, DE

Key dates

Filing date	Feb 19, 2020
Grant date	Oct 10, 2023
Priority date	—
Expiry date	Oct 1, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D2221/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for setting different cooling rates of metal strips or metal plates (rolling material) over the strip width of a cooling stretch in a hot-strip mill or heavy-plate mill is presented. According to the method, for the calculation of the cooling rate, the initial enthalpy distribution over the material width of the rolling material before the cooling is determined. Proceeding therefrom, a target enthalpy distribution is determined in the width direction and length direction of the rolling material while taking into account a calculation of the flatness and the mechanical properties by means of a microstructure model. Subsequently, the coolant amount and the coolant curve of the cooling stretch are set.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.