The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 17, 2002

Filed:

Nov. 14, 2001
Applicant:
Inventors:

Udo Falkenreck, Bochum, DE;

Uwe Quitmann, Willich, DE;

Harald Wehage, Ilsenburg, DE;

Assignee:

SMS Demag AG, Düsseldorf, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/02 ;
U.S. Cl.
CPC ...
C21D 8/02 ;
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 Ar transformation point and temporarily maintained there until the microstructural transformation of the recrystallized, fine-grained austenite to ferrite/pearlite has been completed.


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