EP 2176010 A1 20100421 - METHOD FOR THE PRODUCTION OF A STRIP MADE OF STEEL
Title (en)
METHOD FOR THE PRODUCTION OF A STRIP MADE OF STEEL
Title (de)
VERFAHREN ZUM HERSTELLEN EINES BANDES AUS STAHL
Title (fr)
PROCÉDÉ POUR FABRIQUER UNE BANDE D'ACIER
Publication
Application
Priority
- EP 2008006316 W 20080731
- DE 102007036967 A 20070804
- DE 102007058709 A 20071206
Abstract (en)
[origin: CA2689457A1] The invention relates to a method for the production of a strip (1) made of steel, wherein a slab (3) is first cast in a casting machine (2), wherein the slab (3) exits the casting machine (2) at a casting speed (v) at a give n slab thickness (H), wherein the slab (3) is subsequently rolled into a str ip (1) in at least one rolling train (4, 5) using a number of rolling frames (6, 7), and wherein the strip (1) has a final thickness (dE) after the last rolling frame (6, 7). In order to maintain optimum processing conditions and be able to react to unexpected events, the invention provides the following process steps: a) depositing a functional correlation in a machine control (8) between the casting speed (v) or the mass flow (v x h), or as a product of the casting speed and the slab thickness (v x H), or as the product of st rip speed and strip thickness and the strip temperature (T) after the last r olling frame (7) rolling the strip (1) for a different number (n) of active rolling frames (7) and different final thicknesses; b) calculation or specif ication of the casting speed (v) or the mass flow (v x H) and supplying the determined value to the machine control (8); c) determining the optimum numb er of active rolling frames (7) and the final thicknesses and decreases in t hickness that can be rolled in the rolling train based on the functional pro cesses stored in the machine control (8) according to step a) in order to ob tain a desired strip temperature (T) after the last active rolling frame (7) at the given casting speed (v), or at the given mass flow (v x H); d) start ing up a number of rolling frames (7) of the rolling train (5) such that onl y the number of rolling frames (7) determined according to step c) is active .
IPC 8 full level
B21B 1/46 (2006.01); B21B 37/74 (2006.01)
CPC (source: EP KR US)
B21B 1/46 (2013.01 - KR); B21B 1/463 (2013.01 - EP US); B21B 37/74 (2013.01 - EP KR US); C21D 8/0226 (2013.01 - EP US); C21D 11/005 (2013.01 - EP US); B21B 13/22 (2013.01 - EP US); B21B 2261/20 (2013.01 - EP US); B21B 2275/06 (2013.01 - EP US)
Citation (search report)
See references of WO 2009018957A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007058709 A1 20090205; AR 067806 A1 20091021; AU 2008285980 A1 20090212; AU 2008285980 B2 20110310; CA 2689457 A1 20090212; CA 2689457 C 20120131; CN 102083558 A 20110601; EG 25305 A 20111207; EP 2176010 A1 20100421; EP 2176010 B1 20120912; JP 2010529907 A 20100902; KR 101152166 B1 20120615; KR 20100009649 A 20100128; MX 2009012903 A 20100114; RU 2010107862 A 20110910; RU 2434696 C1 20111127; TW 200927316 A 20090701; TW I371319 B 20120901; UA 97167 C2 20120110; US 2010163205 A1 20100701; US 8327918 B2 20121211; WO 2009018957 A1 20090212; ZA 200908074 B 20100728
DOCDB simple family (application)
DE 102007058709 A 20071206; AR P080103403 A 20080804; AU 2008285980 A 20080731; CA 2689457 A 20080731; CN 200880101882 A 20080731; EG 2009121800 A 20091209; EP 08785258 A 20080731; EP 2008006316 W 20080731; JP 2010512611 A 20080731; KR 20097026672 A 20080731; MX 2009012903 A 20080731; RU 2010107862 A 20080731; TW 97129162 A 20080801; UA A201002412 A 20080731; US 73304108 A 20080731; ZA 200908074 A 20091117