EP 2170543 A1 20100407 - APPARATUS FOR PREVENTING NOZZLE CLOGGING, APPARATUS FOR CONTINUOUS CASTING HAVING THE SAME, METHOD FOR PREVENTING NOZZLE CLOGGING AND METHOD FOR CONTINUOUS CASTING USING THE SAME
Title (en)
APPARATUS FOR PREVENTING NOZZLE CLOGGING, APPARATUS FOR CONTINUOUS CASTING HAVING THE SAME, METHOD FOR PREVENTING NOZZLE CLOGGING AND METHOD FOR CONTINUOUS CASTING USING THE SAME
Title (de)
VORRICHTUNG ZUR VERHINDERUNG DES VERSTOPFENS EINER DÜSE, STRANGGIESSVORRICHTUNG DAMIT, VERFAHREN ZUR VERHINDERUNG DES VERSTOPFENS EINER DÜSE UND DIESES VERWENDENDE STRANGGIESSVERFAHREN
Title (fr)
PROCÉDÉ ET APPAREIL POUR EMPÊCHER L'OBTURATION DE BUSETTE, PROCÉDÉ ET APPAREIL POUR LA COULÉE CONTINUE LE COMPRENANT
Publication
Application
Priority
- KR 2008003672 W 20080626
- KR 20070062651 A 20070626
Abstract (en)
[origin: WO2009002105A1] The present invention relates to an apparatus for preventing nozzle clogging, which rapidly estimates the degree of nozzle clogging when molten steel is supplied from a tundish to a mold and then controls a casting state according to the estimation result, an apparatus for continuous casting having the same, a method for preventing nozzle clogging and a method for continuous casting using the same. The present invention includes measuring backpressure of inert gas supplied to a casting nozzle in real time; and calculating a nozzle status index from the measured actual backpressure. There are effects in that it is possible to rapidly and accurately estimate the location and degree of nozzle clogging based on a backpressure change of inert gas supplied to a casting nozzle, to detect leakage of the inert gas, and to improve a casting yield and quality of strands by suitably controlling inert gas supplied to a casting nozzle.
IPC 8 full level
B22D 11/117 (2006.01); B22D 41/42 (2006.01); B22D 41/58 (2006.01)
CPC (source: EP KR)
B22D 11/00 (2013.01 - KR); B22D 11/10 (2013.01 - KR); B22D 11/117 (2013.01 - EP); B22D 41/00 (2013.01 - KR); B22D 41/42 (2013.01 - EP); B22D 41/50 (2013.01 - KR); B22D 41/58 (2013.01 - EP)
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)
WO 2009002105 A1 20081231; WO 2009002105 A9 20090219; EP 2170543 A1 20100407; EP 2170543 A4 20120725; KR 20080113771 A 20081231
DOCDB simple family (application)
KR 2008003672 W 20080626; EP 08778377 A 20080626; KR 20070062651 A 20070626