EP 2718470 A1 20140416 - METHOD AND DEVICE FOR PRETREATING A ROLLED GOOD BEFORE HOT ROLLING
Title (en)
METHOD AND DEVICE FOR PRETREATING A ROLLED GOOD BEFORE HOT ROLLING
Title (de)
VERFAHREN UND VORRICHTUNG ZUR VORBEHANDLUNG EINES WALZGUTS VOR DEM WARMWALZEN
Title (fr)
PROCÉDÉ ET DISPOSITIF DE PRÉTRAITEMENT D'UN PRODUIT À LAMINER AVANT LE LAMINAGE À CHAUD
Publication
Application
Priority
- AT 8612011 A 20110610
- EP 2012060327 W 20120601
Abstract (en)
[origin: WO2012168141A1] The invention relates to a method and a device for pretreating a rolled good (3). The aim of the invention is to find a method and a device with which the rolled good (3) can be both energy-efficiently heated and thoroughly descaled before hot rolling. Said problem is solved by the following method steps: preheating the rolled good (3) in a preheating furnace (4) by a plurality of burners (11); descaling the preheated rolled good (3) in a descaling device (5); heating the descaled rolled good (3) in a heating furnace by means of a plurality of burners (11), wherein the burners substoichiometrically burn a carbon carrier so that the rolled good (3) is held in a reducing atmosphere in the heating furnace (7) by the exhaust (12, 13) created during combustion; introducing a first part of the exhaust (12) and oxygen (15) into the preheating furnace (4); post-combusting the first part of the exhaust (12) in the preheating furnace (4), wherein the volume of oxygen (15) is chosen so that the rolled good (3) is held in an oxidizing atmosphere in the preheating furnace (4).
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/00 (2006.01); F27B 17/00 (2006.01); F27B 19/04 (2006.01); F27D 7/06 (2006.01)
CPC (source: EP)
C21D 8/02 (2013.01); C21D 9/0056 (2013.01); F27B 17/0016 (2013.01); F27B 19/04 (2013.01); F27D 7/06 (2013.01); F27D 99/0033 (2013.01)
Citation (search report)
See references of WO 2012168141A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012168141 A1 20121213; AT 511429 A4 20121215; AT 511429 B1 20121215; CN 103582708 A 20140212; CN 103582708 B 20160615; EP 2718470 A1 20140416; EP 2718470 B1 20151028; RU 2013158326 A 20150720; RU 2605733 C2 20161227
DOCDB simple family (application)
EP 2012060327 W 20120601; AT 8612011 A 20110610; CN 201280028378 A 20120601; EP 12726403 A 20120601; RU 2013158326 A 20120601