EP0964760B1 - Verfahren und vorrichtung zum giessen von dünnen strängen - Google Patents

Verfahren und vorrichtung zum giessen von dünnen strängen Download PDF

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Publication number
EP0964760B1
EP0964760B1 EP98910629A EP98910629A EP0964760B1 EP 0964760 B1 EP0964760 B1 EP 0964760B1 EP 98910629 A EP98910629 A EP 98910629A EP 98910629 A EP98910629 A EP 98910629A EP 0964760 B1 EP0964760 B1 EP 0964760B1
Authority
EP
European Patent Office
Prior art keywords
liquid metal
channel
speed
metallurgical vessel
casting
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.)
Expired - Lifetime
Application number
EP98910629A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0964760A1 (de
Inventor
Joachim Kroos
Hans-Jürgen SCHEMEIT
Karl-Heinz Spitzer
Ulrich Urlau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP0964760A1 publication Critical patent/EP0964760A1/de
Application granted granted Critical
Publication of EP0964760B1 publication Critical patent/EP0964760B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt

Definitions

  • the invention relates to a method for casting thin strands, in particular made of steel, with a band casting device, in which from a metallurgical vessel liquid metal is fed via a feed device to an endless belt and a appropriate tape pouring device.
  • DE 40 39 959 C1 describes a method and a device for producing a Known near-dimensional metal strip, the liquid metal of the metallurgical vessel is placed in a receptacle on which one in two length sections divided feeder is connected.
  • the feeding device is the liquid thread before hitting the endless belt a resistance opposed to its flow rate as far reduces the speed of the tape Speed occurs on the endless belt.
  • the invention has set itself the goal of a method with a corresponding device to create thin strands with simple constructive Medium and safe process control an endless belt closely tolerated in the desired Belt thickness can be produced.
  • the invention achieves this goal by the characterizing features of Process claim 1 and device claim 6.
  • the supply quantity of the liquid metal is kept constant in relation to the discharge quantity of the finished product, that is to say the cast strip drawn off from the endless belt system.
  • the flow rate of the liquid thread is reduced to such an extent that it occurs on the endless belt at a speed corresponding to the belt take-off speed and the melt in the area of impact has a thickness adapted to the desired strand thickness.
  • Measuring elements for recording the level are used to ensure exact compliance with the level provided, e.g. Float or a pearl device, and to comply with the Strip thickness e.g. Distance sensors, which are connected to a measuring and control device Act actuator that controls shut-off elements to regulate the inflow amount.
  • This Shut-off elements can be sliders or a stopper.
  • the pouring channel in the Designed in such a way that the first pouring channel part forms a resistance channel part.
  • the second pouring channel part is formed in its mouth so that it is the same Cross-sectional area, like the later finished product.
  • the pouring channel has a shape in which the first as a resistance channel trained channel part is longer than the second channel part.
  • Resistor element is provided, which is designed as a filter and a Free space from 0.6 to 0.8 times the cross-sectional area of the pouring channel.
  • the free The surface of this filter can be placed outside in a refractory plate Hole exist.
  • the melt is heated in the area of the feed device.
  • This will proposed the wall of the pouring channel made of electrically conductive refractory material to build and use an induction coil as a heating device.
  • the static magnetic field slows down the speed of the melt.
  • a linear motor is provided, which by generating a counter the flow direction of the melt migrating field the speed of the Slows down the melt.
  • the first pouring channel part is designed as a tube.
  • This tube can point in the bottom of the receptacle in a vertical direction be arranged.
  • the mouth of this pouring pipe is at this Embodiment connected to a second part of the pouring channel, which as an opening Funnel is designed, wherein its mouth has dimensions that the Finished product.
  • the second part of the channel can be used to achieve a uniform outflow speed across the strand width of cross-sectional areas have, which are smaller in the flow direction of the melt in the pouring channel part.
  • FIGS. 1 and 3 have a metallurgical vessel 21 filled with liquid metal M. which have a bottom opening 22 in the bottom. At this bottom opening 22 is a diving spout 23 is arranged, which is immersed in a melt M, which is in a receptacle 12 is located.
  • the bottom opening 22 of the metallurgical vessel 21 is shown in FIG Slider 25 and in Figure 3 can be closed by a stopper (movement arrow).
  • Activation via an actuator 73 is from the metallurgical vessel 21 outflowing amount of liquid metal M continuously adjustable.
  • the level of the liquid metal M located in the receptacle 12 becomes detected by a level measuring element 71, in Figure 1 by a float 74 and in Figure 3 by a bead device 75.
  • the actuator 73 and the Level measuring device 71 are connected to a measuring and control device 72.
  • an endless belt 31 is provided below the receptacle 12, which one driven deflection 32 and a loose deflection 33.
  • the liquid metal is given up where it is solidifies and is transported away as finished product S.
  • the feed device 11 is designed as a pouring channel, the first Pouring channel part 14, which is designed as a resistance channel part. At this The first pouring channel part 14 is followed by a second pouring channel part 15, which one Has outlet opening 16.
  • the thickness d w of the resistance channel part is smaller than the strand thickness d s .
  • the resistance channel part has a length L 14 that is greater than the length of the second channel part L 15 .
  • a resistance element can be provided in the first pouring channel part, as shown in FIG. 2. It can be constructed as a separate resistance element with a rectangular opening (upper part of the picture) or also as a filter 42 which has bores 43 (lower half of the picture).
  • the free area A F is composed of the sum of the bores 43 and has a size of 0.6 to 0.8 x A K (cross-sectional area of the pouring channel).
  • the first pouring channel part 14 is tubular, which one second pouring channel part 15 of the feed device 11 connects.
  • the second part of the pouring channel is equipped as an opening funnel that leads to the upper run 34 of the Endless belt 31 is inclined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Forging (AREA)
EP98910629A 1997-03-05 1998-02-24 Verfahren und vorrichtung zum giessen von dünnen strängen Expired - Lifetime EP0964760B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711116 1997-03-05
DE19711116A DE19711116C2 (de) 1997-03-05 1997-03-05 Verfahren und Vorrichtung zum Gießen von dünnen Strängen
PCT/DE1998/000579 WO1998039121A1 (de) 1997-03-05 1998-02-24 Verfahren und vorrichtung zum giessen von dünnen strängen

Publications (2)

Publication Number Publication Date
EP0964760A1 EP0964760A1 (de) 1999-12-22
EP0964760B1 true EP0964760B1 (de) 2003-01-22

Family

ID=7823693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98910629A Expired - Lifetime EP0964760B1 (de) 1997-03-05 1998-02-24 Verfahren und vorrichtung zum giessen von dünnen strängen

Country Status (7)

Country Link
US (1) US6450242B1 (xx)
EP (1) EP0964760B1 (xx)
AT (1) ATE231425T1 (xx)
AU (1) AU6494998A (xx)
DE (2) DE19711116C2 (xx)
WO (1) WO1998039121A1 (xx)
ZA (1) ZA981795B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060191664A1 (en) * 2005-02-25 2006-08-31 John Sulzer Method of and molten metal feeder for continuous casting
US20130112364A1 (en) * 2007-11-19 2013-05-09 Sms Siemag Aktiengesellschaft Casting system with a device for applying fluid on a cast strip
DE102007055346A1 (de) * 2007-11-19 2009-05-20 Sms Demag Ag Gießanlage mit einer Vorrichtung zum Aufbringen auf ein Gießband
DE102015114725B3 (de) * 2015-09-03 2016-12-08 Salzgitter Flachstahl Gmbh Schmelzenaufgabesystem für eine horizontale Bandgießanlage

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163349A (ja) * 1984-09-05 1986-04-01 Nippon Kokan Kk <Nkk> 水平連続鋳造設備における鋳片押戻量制御方法
DE3521778A1 (de) * 1985-06-19 1987-01-02 Sundwiger Eisen Maschinen Verfahren zum herstellen eines metallstranges, insbesondere in form eines bandes oder profils durch giessen und vorrichtung zur durchfuehrung dieses verfahrens
CA1296505C (en) * 1987-05-06 1992-03-03 R. Guthrie Research Associates Inc. Continuous casting of thin metal strip
DE3850464T2 (de) * 1987-09-07 1995-01-26 Danieli Off Mecc Giessverfahren für eine Stranggiessvorrichtung mit reduzierter Bauhöhe und entsprechender Tauchausguss.
AU608445B2 (en) * 1988-05-16 1991-03-28 Nippon Steel Corporation Injector for high speed thin continuous casting machine and pouring control method
FR2656995B1 (fr) * 1990-01-17 1993-09-10 Somogyi Stephens Flacon de parfum.
DE4039959C1 (xx) * 1990-12-14 1992-01-23 Wieland-Werke Ag, 7900 Ulm, De
US5148885A (en) * 1991-03-29 1992-09-22 Weyer Paul P Steerable utility vehicle
SE9102022L (sv) * 1991-07-01 1993-01-02 Stiftelsen Metallurg Forsk Saett och gjutmaskin foer kontinuerlig gjutning av metallband
DE4218587C1 (de) * 1991-09-27 1993-11-04 Wieland Werke Ag Verfahren und vorrichtung zur herstellung eines endabmessungsnahen metallbandes
US5238049A (en) * 1992-10-06 1993-08-24 Reynolds Metals Company Adjustable flow control device for continuous casting of metal strip
CA2088401A1 (en) * 1993-01-29 1994-07-30 Her Majesty The Queen, In Right Of Canada As Represented By The Minister Of Natural Resources Canada Pneumatic flow control of liquid metals
DE4344953C2 (de) * 1993-12-27 1996-10-02 Mannesmann Ag Verfahren und Vorrichtung zum Angießen eines endabmessungsnahen Metallbandes
US5439047A (en) * 1994-02-07 1995-08-08 Eckert; C. Edward Heated nozzle for continuous caster
US5709260A (en) * 1995-08-22 1998-01-20 Wagstaff, Inc. Molten metal admission control in casting
EP0798061A4 (en) * 1995-10-18 1999-06-30 Sumitomo Metal Ind METHOD FOR MONITORING THE MELT LEVEL IN A CONTINUOUS CASTING PLANT
AU714976B2 (en) * 1996-04-29 2000-01-13 Bhp Steel (Jla) Pty Limited Magnetic braking

Also Published As

Publication number Publication date
EP0964760A1 (de) 1999-12-22
WO1998039121A1 (de) 1998-09-11
AU6494998A (en) 1998-09-22
DE19711116C2 (de) 1999-05-12
DE59807007D1 (de) 2003-02-27
ZA981795B (en) 1998-09-02
DE19711116A1 (de) 1998-09-17
ATE231425T1 (de) 2003-02-15
US6450242B1 (en) 2002-09-17

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