Patent · US Expired

Method for producing hot-rolled strips and plates

US6451136B1 · kind B1 · utility

1Cited by

0References

5Claims

0Family size

Assignee

SMS DEMAG LLC · DE

Inventors

Udo Falkenreck · Bochum, DE
Uwe Quitmann · Willich, DE
Harald Wehage · Ilsenburg, DE

Key dates

Filing date	Nov 14, 2001
Grant date	Sep 17, 2002
Priority date	—
Expiry date	Nov 14, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B1/46
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for producing hot-rolled strip and plates in a production plant having a continuous casting installation for slabs 100-180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without edging, a cooling interval, a heating furnace, and a Steckel mill. Between the continuous casting installation and the heating furnace, only the skin layer of the previously descaled slab is deformed in-line, recrystallized during and after deformation, and then cooled in several stages to a temperature below the Ar3 transformation point and temporarily maintained there until the microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.

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