Processing

Please wait...

Settings

Settings

Goto Application

1. WO2000015362 - METHOD AND DEVICE FOR PRODUCING HOT-ROLLED STRIPS AND PLATES

Publication Number WO/2000/015362
Publication Date 23.03.2000
International Application No. PCT/DE1999/002866
International Filing Date 08.09.1999
Chapter 2 Demand Filed 07.03.2000
IPC
B21B 1/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
22for rolling bands or sheets of indefinite length
30in a non-continuous process
32in reversing mills, e.g. with intermediate storage reels for accumulating work
34by hot-rolling
B21B 1/46 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
46for rolling metal immediately subsequent to continuous casting
B21B 45/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
45Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
02for lubricating, cooling, or cleaning
CPC
B21B 1/34
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section
22for rolling ; plates, strips,; bands or sheets of indefinite length
30in a non-continuous process
32in reversing ; single stand; mills, e.g. with intermediate storage reels for accumulating work
34by hot-rolling
B21B 1/46
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
1Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section
46for rolling metal immediately subsequent to continuous casting
B21B 45/0218
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
BROLLING OF METAL
45Devices for surface ; or other; treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
02for lubricating, cooling, or cleaning
0203Cooling
0209Cooling devices, e.g. using gaseous coolants
0215using liquid coolants, e.g. for sections, for tubes
0218for strips, sheets, or plates
Applicants
  • SMS DEMAG AG [DE]/[DE] (AllExceptUS)
  • FALKENRECK, Udo [DE]/[DE] (UsOnly)
  • QUITMANN, Uwe [DE]/[DE] (UsOnly)
  • WEHAGE, Harald [DE]/[DE] (UsOnly)
Inventors
  • FALKENRECK, Udo
  • QUITMANN, Uwe
  • WEHAGE, Harald
Agents
  • MEISSNER, Peter, E.
Priority Data
198 43 200.314.09.1998DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR ERZEUGUNG VON WARMBAND UND BLECHEN
(EN) METHOD AND DEVICE FOR PRODUCING HOT-ROLLED STRIPS AND PLATES
(FR) PROCEDE DE PRODUCTION DE FEUILLARD A CHAUD ET DE TOLES
Abstract
(DE)
Die Erfindung betrifft ein Verfahren für die Erzeugung von Warmband und Blechen in einer Produktionsanlage, bestehend aus einer Stranggießanlage für Brammen zwischen 100 und 180 mm Dicke, einem Zunderwäscher, einer ein- oder mehrgerüstigen Walzeinheit mit oder ohne integriertem Staucher, einer Kühlstrecke, einem Anwärmofen und einem Steckelwalzwerk. Dabei wird zwischen Stranggießanlage und Anwärmofen nur die oberflächennahe Randschicht der zuvor entzunderten Bramme in-line umgeformt, während und nach der Umformung rekristallisiert und anschließend mehrstufig auf eine Temperatur unterhalb des Ar3-Umwandlungspunktes abgekühlt und zeitweise gehalten, bis die Gefügeumwandlung des rekristallisierten feinkörnigen Austenits im Ferrit/Perlit abgeschlossen ist.
(EN)
The invention relates to a method for producing hot-rolled strips and plates in a production plant consisting of a continuous casting installation for slabs between 100 and 180 mm thick, descaling sprays, a single- or multiple-stand rolling unit with or without integrated upsetting unit, a cooling section, a heating furnace and a Steckel mill. Between the continuous casting installation and the heating furnace only the marginal surface layer of the previously descaled slab is deformed in-line, recrystallised during and after deformation and then cooled in several stages to a temperature below the Ar3 transformation point and temporarily maintained at said temperature until the microstructural transformation of the recrystallised close-grained austenite in the ferrite/perlite has been completed.
(FR)
L'invention concerne un procédé de production de feuillard à chaud et de tôles dans une installation de production comprenant une installation de coulée continue pour des brames d'une épaisseur comprise entre 100 et 180 mm, des jets de décalaminage, une unité de laminage à une ou plusieurs cages, avec ou sans refouleur intégré, un parcours de refroidissement, un four de réchauffage et un laminoir Steckel. Selon le procédé de l'invention, seule la couche marginale de la brame décalaminée au préalable, proche de la surface, subit un formage en ligne entre l'installation de coulée continue et le four de réchauffage. Cette couche est recristallisée pendant et après le formage, puis refroidie en plusieurs étapes à une température inférieure au point critique Ar3 et maintenue de façon temporaire à cette température, jusqu'à ce que la transformation de structure de l'austénite à grains fins recristallisée, dans la ferrite/perlite, soit terminée.
Latest bibliographic data on file with the International Bureau