EP 1508388 B1 20081022 - METHOD FOR COOLING STEEL SHEET AND METHOD OF MANUFACTURING STEEL SHEET
Title (en)
METHOD FOR COOLING STEEL SHEET AND METHOD OF MANUFACTURING STEEL SHEET
Title (de)
VERFAHREN ZUM KÜHLEN VON STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG VON STAHLBLECH
Title (fr)
PROCEDE DE REFROIDISSEMENT D'UNE FEUILLE D'ACIER, ET PROCEDE DE FABRICATION D'UNE FEUILLE D'ACIER
Publication
Application
Priority
- JP 0305933 W 20030513
- JP 2002142482 A 20020517
Abstract (en)
[origin: EP1508388A1] The present invention provides a cooling method of steel plate comprising the steps of; transferring a steel plate horizontally with the steel plate surface being constrained by plural sets of upper and lower rollers; and water-cooling the steel plate being transferred from upside and downside of the steel plate surface, wherein a constraint force (t: ton) on the steel plate per one set of upper and lower rollers is not lower than P1 (=6.85x10<-7>S<3>L<0.65>) and lower then P2 (=1.2x10<-6>S<3>L<0.65>). Here, L (mm) is a distance between the sets of upper and lower rollers adjacent with each other, and S (mm) is a thickness of the steel plate. According to the invention, a hot-rolled steel plate can be cooled uniformly without camber due to inhomogeneous cooling or buckling due to constraint force. <IMAGE>
IPC 8 full level
B21B 45/02 (2006.01); C21D 1/00 (2006.01); C21D 9/46 (2006.01); C21D 9/573 (2006.01); B21B 15/00 (2006.01); B21B 39/00 (2006.01); C21D 1/667 (2006.01); C21D 1/673 (2006.01)
CPC (source: EP KR)
B21B 45/02 (2013.01 - KR); B21B 45/0218 (2013.01 - EP); C21D 9/46 (2013.01 - EP); C21D 9/573 (2013.01 - EP); B21B 39/006 (2013.01 - EP); B21B 45/0281 (2013.01 - EP); B21B 2015/0071 (2013.01 - EP); C21D 1/667 (2013.01 - EP); C21D 1/673 (2013.01 - EP)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1508388 A1 20050223; EP 1508388 A4 20050817; EP 1508388 B1 20081022; CN 1290634 C 20061220; CN 1610584 A 20050427; DE 60324272 D1 20081204; JP 2003334605 A 20031125; JP 3925789 B2 20070606; KR 100598006 B1 20060713; KR 20040062691 A 20040707; TW 200307580 A 20031216; TW I222903 B 20041101; WO 03097263 A1 20031127
DOCDB simple family (application)
EP 03728060 A 20030513; CN 03801812 A 20030513; DE 60324272 T 20030513; JP 0305933 W 20030513; JP 2002142482 A 20020517; KR 20047009443 A 20030513; TW 92113312 A 20030516