EP2480356A1 - Method and device for casting metal melt in a continuous casting machine - Google Patents
Method and device for casting metal melt in a continuous casting machineInfo
- Publication number
- EP2480356A1 EP2480356A1 EP10757185A EP10757185A EP2480356A1 EP 2480356 A1 EP2480356 A1 EP 2480356A1 EP 10757185 A EP10757185 A EP 10757185A EP 10757185 A EP10757185 A EP 10757185A EP 2480356 A1 EP2480356 A1 EP 2480356A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- melt
- rod
- casting
- strand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/118—Refining the metal by circulating the metal under, over or around weirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
Definitions
- the present invention relates to a method and apparatus for casting metallic melt into continuously cast precursors in a continuous casting machine.
- the invention relates to a method for casting metallic melt into continuously cast precursors with the following steps
- Apparatus for casting metallic melt into continuously cast precursors in a continuous casting machine essentially comprise
- a strand support means for guiding, supporting and cooling the strand, wherein the at least partially solidified strand is pulled out of the mold
- the melt in which in the first case, the melt is introduced without guidance through a pouring tube in free fall and in the second case, the melt, starting from one or more outlet openings in the SEN in the mold.
- the melt Regardless of the way in which the melt is introduced into the mold, at least one flow in the form of a single or double vortex is formed in the mold.
- the melt flows below the casting mirror in the direction of the casting mirror, wherein this flow is deflected either in the region of the casting level or below the casting level in the direction of the strand movement (downwards); in the case of
- Plant productivity can be increased.
- the manner in which the flow of the melt in the mold can be stabilized is not shown in the document.
- the object of the invention is to provide a method and a
- Another object is to reduce the settling time of the flow of the melt in the mold in the form of a single or double vortex, whereby the time of
- Conditions of a continuous casting plant can be reduced.
- Transient flow leads, so that the resulting, stabilized flow can be considered as stationary. This stabilization leads to a calming of the
- the melt is introduced into the mold either by free jet casting or by means of a pouring tube introduced, wherein in the latter form, the melt exits below the pouring mirror from the pouring tube through one or more outlet openings.
- a controller e.g.
- the measured value is a strand extraction speed, a temperature of a side wall of the mold or a mass flow of the in the
- the measured value is preferably determined by permanent measuring in real time and based on the control.
- Immersion depth or the position of at least one rod-shaped installation part adjusted by means of a control that by a change in the immersion depth or the position
- the measured value is a temperature of a side wall of the mold or a
- the measured value is preferably determined by permanent measuring in real time and based on the control.
- a further preferred embodiment is that the melt is cooled by at least one rod-shaped internals, wherein the rod-shaped internals is in communication with a cooling circuit.
- Cooling circuit preferably designed as a thermosiphon or heat pipe, which on the one hand a large amount of
- rod-shaped insert relative to the casting mirror or an actuator for changing a position of the rod-shaped
- the device additionally comprises at least one transducer for measuring a state variable of the continuous casting machine and a controller connected thereto, wherein the actuator can be connected to the controller and the rod-shaped internals.
- the device additionally has at least one transducer for measuring a state variable of the continuous casting machine and an associated control device, wherein the actuator in each case with the control device and the rod-shaped
- the automatic i. automatic, adaptation of the immersion depth and / or the position of a rod-shaped component to various operating conditions possible.
- the rod-shaped ones cover
- a rod-shaped internals has a round, oval, lenticular or polygonal
- a rod-shaped internals to a cooling circuit This makes it possible to improve the quality of the precursors.
- the actuator is a
- Pressure medium cylinder or formed as an electric actuator. Both the pressure cylinder and the electric actuator are well suited as actuators for a control or regulation.
- Fig. 1 is a sectional view of a mold for continuous casting of slabs with a plurality of rod-shaped mounting parts
- Fig. 2 is a to Fig. 1 associated plan view
- Fig. 3 is a sectional view of a mold for continuous casting of slabs with a different immersion depth of the rod-shaped mounting parts in Fig. 1 is a sectional view of a mold for
- Distributor vessel which is mounted above the mold 1, by a pouring tube 6 in which, formed by two narrow side walls 2 and two broad side walls 3 (see Fig. 2), mold 1, where the melt cools and a solid
- Strand shell forms.
- the so-forming, at least partially solidified strand is pulled out of the mold 1 and guided in a strand support device, not shown, supported and further cooled.
- the melt flows below the casting level 5 through a plurality of, mutually opposite, outlet openings 7 from the pouring tube, wherein in each case forms a flow of the melt in the form of a double vortex.
- a free jet 8 flows in the direction of a narrow side wall 2 of the mold 1, wherein the free jet in the stagnation points 9 in a flow in the direction of strand extraction direction (in the picture down) and in a flow in the direction of the casting mirror. 5
- the circular flows in the form of a double vortex are stabilized by 30 rod-shaped built-in parts 10 (viewed from the casting distributor each 3 rows of 5 columns per left and right half-plane of the mold level of the mold 1, see Fig. 2), wherein the flow rates of
- Flows in the form of a double vortex are reduced specifically in the region of the casting mirror 5.
- the immersion depth of a rod-shaped built-in part 10 is adjusted by means of an actuator 11, which is designed as a pressure medium cylinder only for a rod-shaped installation for reasons of clarity, so that the exiting
- Free jet 8 of the flow of the melt is recessed, i. that the melt is essentially unaffected by the melt
- the positions of the rod-shaped built-in parts 10 are dependent on a strand extraction speed adjusted measured value, wherein the measured value (a speed of a not shown, not driven
- a transducer a speed sensor
- a control not shown
- the controller ascertains a plurality of actuating signals, which are supplied to the actuators 11 by means of a characteristic map, so that the immersion depths of the rod-shaped built-in components 10 are changed relative to the casting mirror 5.
- Fig. 3 is a schematic representation with
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1495/2009A AT508790B1 (en) | 2009-09-23 | 2009-09-23 | METHOD AND DEVICE FOR FORGING METALLIC MELTING FOR CURRENT CAST PRODUCTS IN A CONTINUOUS CASTING MACHINE |
PCT/EP2010/063201 WO2011036060A1 (en) | 2009-09-23 | 2010-09-09 | Method and device for casting metal melt in a continuous casting machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2480356A1 true EP2480356A1 (en) | 2012-08-01 |
EP2480356B1 EP2480356B1 (en) | 2016-06-01 |
Family
ID=42983848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10757185.3A Not-in-force EP2480356B1 (en) | 2009-09-23 | 2010-09-09 | Process and device for casting liquid metal in a continuous casting machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2480356B1 (en) |
KR (1) | KR20120079469A (en) |
CN (1) | CN102497944A (en) |
AT (1) | AT508790B1 (en) |
WO (1) | WO2011036060A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014127800A1 (en) * | 2013-02-19 | 2014-08-28 | Abb Technology Ltd | Method, controller and tundish control system for a continuous casting process |
CN104801685B (en) * | 2015-05-12 | 2017-03-01 | 马鞍山尚元冶金科技有限公司 | A kind of device of effective suppression liquid level fluctuation of crystallizer |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3833050A (en) | 1968-06-17 | 1974-09-03 | V Kashuba | Installation for the continuous casting of non-ferrous metals in a protective gas atmosphere |
US3840062A (en) | 1968-07-18 | 1974-10-08 | M Kenney | Continuous steel casting method |
DE2657406C3 (en) * | 1976-12-17 | 1982-01-07 | Naučno-proizvodstvennoe ob"edinenie Tulačermet, Tula | Device for cleaning the melt during horizontal continuous casting |
JPS5443832A (en) * | 1977-09-14 | 1979-04-06 | Hitachi Ltd | Continuous steel casting |
JPS5794457A (en) * | 1980-12-02 | 1982-06-11 | Nippon Steel Corp | Immersion nozzle for continuous casting |
AU1420183A (en) * | 1983-05-03 | 1984-11-08 | Aikoh Co. Ltd. | Tundish for steel casting |
JPS62212045A (en) * | 1986-03-10 | 1987-09-18 | Nippon Steel Corp | Preventing method for wrapping powder in continuous casting method |
JPH0215852A (en) | 1988-07-04 | 1990-01-19 | Nkk Corp | Method for continuously casting steel |
JPH0377758A (en) * | 1989-08-16 | 1991-04-03 | Kawasaki Steel Corp | Method for starting pouring in continuous casting |
FR2671102A1 (en) * | 1990-12-27 | 1992-07-03 | Siderurgie Fse Inst Rech | Process and device for fluidising liquid slag at the surface of a bath of molten metal |
EP0832704A1 (en) * | 1996-09-19 | 1998-04-01 | Hoogovens Staal B.V. | Continuous casting machine |
JPH11104789A (en) * | 1997-09-29 | 1999-04-20 | Sumitomo Metal Ind Ltd | Continuous casting |
AT409227B (en) | 1998-08-17 | 2002-06-25 | Voest Alpine Ind Anlagen | METHOD AND SYSTEM FOR THE PRODUCTION OF HOT-ROLLED STEEL STRIP FROM A STEEL MELT |
AT408962B (en) * | 2000-05-31 | 2002-04-25 | Voest Alpine Ind Anlagen | METHOD FOR PRODUCING A CONTINUOUS PRE-PRODUCT |
CN2873365Y (en) * | 2006-02-27 | 2007-02-28 | 沈阳东北大学冶金技术研究所 | Turbulence controller |
-
2009
- 2009-09-23 AT ATA1495/2009A patent/AT508790B1/en not_active IP Right Cessation
-
2010
- 2010-09-09 CN CN2010800426339A patent/CN102497944A/en active Pending
- 2010-09-09 WO PCT/EP2010/063201 patent/WO2011036060A1/en active Application Filing
- 2010-09-09 KR KR1020127010466A patent/KR20120079469A/en not_active Application Discontinuation
- 2010-09-09 EP EP10757185.3A patent/EP2480356B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2011036060A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102497944A (en) | 2012-06-13 |
AT508790B1 (en) | 2013-11-15 |
KR20120079469A (en) | 2012-07-12 |
WO2011036060A1 (en) | 2011-03-31 |
AT508790A1 (en) | 2011-04-15 |
EP2480356B1 (en) | 2016-06-01 |
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