EP 2739416 B1 20180829 - CASTING WHEEL PROCESS WITH CRYOGENIC COOLING OF THE CASTING WHEELS
Title (en)
CASTING WHEEL PROCESS WITH CRYOGENIC COOLING OF THE CASTING WHEELS
Title (de)
GIESSWALZVERFAHREN MIT KRYOGENER KÜHLUNG DER GIESSWALZEN
Title (fr)
PROCÉDÉ DE LAMINAGE PAR COULÉE AVEC REFROIDISSEMENT CRYOGÈNE DES LAMINOIRS PAR COULÉE
Publication
Application
Priority
- EP 11184849 A 20111012
- EP 2012063451 W 20120710
- EP 12740923 A 20120710
Abstract (en)
[origin: EP2581150A1] The cast rolling device comprises a mold region that is bounded on a side of a casting roll (2, 2') rotating about a rotational axis (3, 3'), and a cooling device (5, 5'), by which a liquid cooling medium (7) on a surface of the casting roll is applied by a number of coolant creation facilities, where: a metal melt is molded into the mold region; a metal strand produced by solidifying the metal melt is exhausted from the mold region; and the cooling medium is supplied to the coolant creation facilities through coolant lines (8, 8'). The cooling medium is inserted with the metal melt. The cast rolling device comprises a mold region that is bounded on a side of a casting roll (2, 2') rotating about a rotational axis (3, 3'), and a cooling device (5, 5'), by which a liquid cooling medium (7) on a surface of the casting roll is applied by a number of coolant creation facilities, where: a metal melt is molded into the mold region; a metal strand produced by solidifying the metal melt is exhausted from the mold region; and the cooling medium is supplied to the coolant creation facilities through coolant lines (8, 8'). The cooling medium is inserted with respect to the metal melt, and has a standard boiling point of 20[deg] C based on normal air pressure and an operation temperature, which lies below an operation boiling point based on an operating pressure and is pressurized with the cooling medium. The rotational axis is oriented horizontally. The metal strand is exhausted downward from the mold region. An angle of a casting gap of the mold region is 90-180[deg] . The liquid cooling medium is applied on the surface of the casting roll. The coolant creation facilities are arranged below the casting roll. A screening device for thermal shielding of the metal strand against the coolant and/or thermal shielding of the coolant creation facilities against the metal strand is arranged between the metal strand and the coolant creation facilities. The coolant lines are covered with a thermal isolation. Gas separators are arranged in the coolant lines. Controllable valves are arranged in the coolant lines and designed as switching valves. The coolant creation facilities are evenly distributed/arranged over a breadth of the casting roll and controlled individually or in groups. A spacing of the coolant creation facilities of the casting roll and/or an orientation of the coolant creation facilities is more adjustable relative to the casting roll. The spacing and/or the orientation of the coolant creation facilities is more adjustable by a control device during operation of the cast rolling device. The cast rolling device further comprises a sensor, by which an actual characteristic of the casting roll or an actual characteristic of the metal strand is detected. The control device automatically determines a driving state of the cooling device.
IPC 8 full level
B22D 11/06 (2006.01); B22D 11/22 (2006.01)
CPC (source: EP US)
B22D 11/06 (2013.01 - US); B22D 11/0622 (2013.01 - EP US); B22D 11/0682 (2013.01 - EP US); B22D 11/22 (2013.01 - EP US)
Citation (examination)
JP S6117344 A 19860125 - HITACHI LTD
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)
EP 2581150 A1 20130417; CN 103874553 A 20140618; CN 103874553 B 20160120; EP 2739416 A1 20140611; EP 2739416 B1 20180829; KR 101945074 B1 20190208; KR 20140073524 A 20140616; US 2014290898 A1 20141002; US 9457397 B2 20161004; WO 2013053506 A1 20130418
DOCDB simple family (application)
EP 11184849 A 20111012; CN 201280050281 A 20120710; EP 12740923 A 20120710; EP 2012063451 W 20120710; KR 20147009473 A 20120710; US 201214351347 A 20120710