EP0814928B1 - Verfahren zum einfüllen metallischer schmelze in eine kokille - Google Patents

Verfahren zum einfüllen metallischer schmelze in eine kokille Download PDF

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Publication number
EP0814928B1
EP0814928B1 EP96905732A EP96905732A EP0814928B1 EP 0814928 B1 EP0814928 B1 EP 0814928B1 EP 96905732 A EP96905732 A EP 96905732A EP 96905732 A EP96905732 A EP 96905732A EP 0814928 B1 EP0814928 B1 EP 0814928B1
Authority
EP
European Patent Office
Prior art keywords
melt
mould
supplied
chamber
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
EP96905732A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0814928A1 (de
Inventor
Ulrich Urlau
Wolfgang Reichelt
Ewald Feuerstacke
Wolfgang DÖHRING
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 EP0814928A1 publication Critical patent/EP0814928A1/de
Application granted granted Critical
Publication of EP0814928B1 publication Critical patent/EP0814928B1/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
    • B22D11/10—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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • 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
    • B22D11/07—Lubricating the moulds
    • 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
    • B22D11/113—Treating the molten metal by vacuum treating

Definitions

  • the invention relates to a method for filling metallic melt, in particular Steel, vertically through a submerged nozzle attached to a casting tank oscillating mold located melt.
  • a method for filling metallic melt, in particular Steel vertically through a submerged nozzle attached to a casting tank oscillating mold located melt.
  • Such a method is known from JP 58 035 051, the device described here being a Intermediate vessel with an open first chamber has, into which molten metal is fed from a ladle, and a has a closed second chamber connected to a vacuum device, in the bottom of which is provided an immersion tube which is in a vertically oscillatable mold protrudes.
  • EP 0 410 273 discloses a container with a first one that is open to atmospheric pressure Chamber for holding molten material and one with it Opening provided wall connected second chamber for dispensing metal known, the second chamber sealed and connected to a vacuum device is connected to thereby have a higher metal level in the second chamber than in the first chamber.
  • the second chamber one is not closer described outlet provided, which can be closed by a valve.
  • DE-OS 2017469 describes a system for the continuous casting of molten metal known with a continuous casting mold, which is a gas-tight lockable and Evacuable intermediate vessel, in which a negative pressure is adjustable, which Allows metal to flow into the mold from the outlet pipe practically without pressure.
  • the immersion pouring tube known from this is designed so that the Metal jet penetrates the liquid sump, even if the speed of the flowing metal through a funnel-shaped design in the mouth area of the outlet pipe is further reduced.
  • the invention has set itself the goal of a method create a flow-free pouring of the Metal melt in the mold allows, in particular for the production of Slab thinly.
  • the hydraulic level of the melt supplied is set and the melt leaving the intermediate vessel becomes isokinetic fed liquid part of the steel strand. Adjusting the hydraulic height between 50 to 600 mm above the melt level in the mold is reached once, the on a two-chamber intermediate vessel on the Surface of the melt in the second chamber is a negative pressure is exercised on the order of magnitude that the level of the atmosphere exposed surface of the melt in the tundish slightly above that in the The mold level is set.
  • the hydraulic height is set in such a way that the inflow amount is regulated by a closure member and the flow thread in Immersion tube always has a positive pressure.
  • the inflowing amount of the liquid metal is adjusted so that it is the deducted amount of the partially solidified strand corresponds.
  • the usual pouring stream that penetrates into the liquid strand core avoided.
  • the strand shell will solidify evenly and unhindered, what not only improves the surface, but also reduces the tendency to break through.
  • casting strands with a large length / width ratio possible because there is no unwanted cross flow inside the mold.
  • the cross-sectional areas of the dip tube and mold are chosen so that regardless of the level, the ring surface exposed to the atmosphere is constant Width. Measures for influencing the Lubricants are carried out. In particular, this includes simple heating of the lubricant and a targeted dosage.
  • the mouth of the immersion pouring tube should have a cross-sectional area have not less than 0.3 times to 0.9 times the inner cross section of the passage area of the Mold is. To reduce the thermal stresses of the jacket of the Dip tube, it is beneficial to round the corners of the dip tube in a radius that is larger than a quarter of the immersion tube width.
  • lubricant can under pressure in the required amount in the Bath is introduced at the desired separation point between the mold and the melt become.
  • the lubricant can External energy to be heated. So it is suggested to use a laser whose laser beam is guided on the surface in a controllable manner and thus exactly emits the required thermal energy.
  • the casting method according to the invention can be used for any formats such as round, Billets or slabs. It is also particularly suitable for thin slabs with dimensions, for example, 60 mm x 1,500 mm.
  • melt S flows from a ladle 11 into a first chamber 13 of an intermediate vessel 12.
  • the first chamber 13 is separated from a second chamber 14 by a partition 15.
  • the second chamber 14 can be closed in a gas-tight manner and is connected to a pump 31 of a vacuum device via a connecting pipe 32.
  • a negative pressure By generating a negative pressure, the melt in the chamber 14 is raised so high that a level P 13 is established in the first chamber 13 which is only slightly above the level P 41 of the melt in the mold 41.
  • An immersion pouring tube 21 is fastened to the second chamber 14, the mouth 27 of which immerses in the melt S located in the mold 41.
  • a lubricant G On the atmospheric ring surface of the melt S in the Mold 41 is a lubricant G from feed lines 53 provided with nozzles 52 a lubricant container 55 a lubricant supply 51 can be supplied.
  • heat energy can be introduced, for example by a laser 62.
  • the at least partially solidified strand E is made from the continuous casting rollers 43 oscillating mold 41 promoted.
  • FIG. 2 shows a pouring device with a melt feeder identical to FIG. 1 and Strand discharge, but with a casting vessel 12 that has only one chamber is open at the top.
  • An immersion pouring tube 21 is attached to the bottom of the casting vessel 12.
  • the Inflow opening to the immersion pouring tube 21 is through a closing element 16, here through a plug rod 17 lockable. By adjusting the stopper rod vertically Influenced on the amount of melt leaving the casting vessel 12.
  • a suction pipe 18 is connected to the immersion pouring tube 21, which is connected to a Trigger device 19 is connected. With the trigger device 19 is influence taken on the inner pressure of the immersion pouring tube 21 in such a way that the flow thread of the supplied melt always has positive pressure.
  • FIG 3 shows in the upper part a section of the dip tube 21, the Mouth 27 dips into the melt S located in the mold 41. Farther the gradually forming strand shell of the solidifying strand E is shown. The arrows show the direction and size of the flow rate of the liquid metal.
  • a lubricant G is applied via nozzles 52
  • Feed lines 53 are arranged, fed.
  • a mold powder used.
  • thermo energy is applied between the dip tube 21 and the mold 41 forming the ring surface of the melt S applied, which is covered with mold powder.
  • a top view of the mold 41 is shown in section AA.
  • it is a slab that is formed by the broad sides 44, 46 and the long sides 45, 47 of the mold 41.
  • the sides 44 to 47 enclose a cross-sectional area A K of the mold 41.
  • a dip tube 21 immersed with the broad sides 22, 24 and the longitudinal sides 23, 25 with a free inner surface of A T.
  • the corners 26 of the dip tube 21 are rounded, in a radius r that is greater than a quarter of the width of the immersion pouring tube B.
  • Nozzles lead into the annular space formed by the dip tube 21 and the mold 41 52, which via metering devices 54 to casting agent containers 55, which are not shown in any more detail are connected.
  • the metering devices 54 can be of different numbers be connected by leads 53. The options are shown with one, two, three and a larger number of feed lines 53.
EP96905732A 1995-03-21 1996-03-11 Verfahren zum einfüllen metallischer schmelze in eine kokille Expired - Lifetime EP0814928B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19512209 1995-03-21
DE19512209A DE19512209C1 (de) 1995-03-21 1995-03-21 Verfahren und Vorrichtung zum Einfüllen metallischer Schmelze in eine Kokille
PCT/DE1996/000460 WO1996029164A1 (de) 1995-03-21 1996-03-11 Verfahren und vorrichtung zum einfüllen metallischer schmelze in eine kokille

Publications (2)

Publication Number Publication Date
EP0814928A1 EP0814928A1 (de) 1998-01-07
EP0814928B1 true EP0814928B1 (de) 2001-07-25

Family

ID=7758506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905732A Expired - Lifetime EP0814928B1 (de) 1995-03-21 1996-03-11 Verfahren zum einfüllen metallischer schmelze in eine kokille

Country Status (14)

Country Link
US (1) US6070649A (pt)
EP (1) EP0814928B1 (pt)
JP (1) JP3061641B2 (pt)
KR (1) KR100265206B1 (pt)
CN (1) CN1084233C (pt)
AT (1) ATE203438T1 (pt)
AU (1) AU4938296A (pt)
BR (1) BR9607672A (pt)
CZ (1) CZ295697A3 (pt)
DE (3) DE19512209C1 (pt)
RU (1) RU2146576C1 (pt)
TR (1) TR199600174A2 (pt)
WO (1) WO1996029164A1 (pt)
ZA (1) ZA962279B (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763524A1 (fr) * 1997-05-23 1998-11-27 Vesuvius France Sa Installation pour la coulee continue d'un metal liquide, et organe pour cette installation
DE19823361A1 (de) * 1998-05-15 1999-11-25 Mannesmann Ag Verfahren und Vorrichtung zum Abziehen eines Metallstranges
KR20020051088A (ko) * 2000-12-22 2002-06-28 이구택 연속주조용 용융금속 공급장치 및 그 방법
KR100807681B1 (ko) * 2001-08-23 2008-02-28 주식회사 포스코 연속주조시 용강 공급장치 및 그 방법
AT412149B (de) * 2002-04-22 2004-10-25 Arc Leichtmetallkompetenzzentrum Ranshofen Gmbh Giesseinrichtung für leichtmetall
NO320254B1 (no) * 2003-06-30 2005-11-14 Norsk Hydro As Metode og utstyr for kontinuerlig eller semikontinuerlig stoping av metall
US20050045303A1 (en) * 2003-08-29 2005-03-03 Jfe Steel Corporation, A Corporation Of Japan Method for producing ultra low carbon steel slab
KR101203757B1 (ko) * 2004-05-28 2012-11-21 고쿠리츠다이가쿠호진 도호쿠다이가쿠 금속 유리의 성형 방법
NO333512B1 (no) * 2007-12-03 2013-06-24 Norsk Hydro As Anordning ved utstyr for kontinuerlig eller semi-kontinuerlig stoping av metall
WO2011102748A1 (ru) * 2010-02-19 2011-08-25 Kobzar-Dernovskiy Vladimir Evgenjevich Способ и устройство производства стали и ее непрерывной разливки
RU2012126008A (ru) * 2012-06-22 2013-12-27 Владимир Евгеньевич Кобзарь-Дерновский Сталькомбайн "комкоб" кобзарь-дерновского для непрерывной ковшевой металлургии без зависомости от металлолома
CN102806329A (zh) * 2012-07-17 2012-12-05 南昌大学 一种可进行半固态加工的有色合金连续铸胚系统
NO341337B1 (en) * 2015-07-03 2017-10-16 Norsk Hydro As Equipment for continuous or semi-continuous casting of metal with improved metal filling arrangement
CN105458239B (zh) * 2016-01-07 2017-12-08 山东亨圆铜业有限公司 一种浇包应急装置及应急方法
US10478890B1 (en) 2016-06-21 2019-11-19 Nucor Corporation Methods of billet casting
CN106111934A (zh) * 2016-08-30 2016-11-16 中国重型机械研究院股份公司 一种轻金属合金高速浇铸凝固成形装置及方法
EP4192636B1 (de) 2020-08-06 2024-02-14 SMS Group GmbH Anlage zum chargieren, schmelzen und giessen von metall und metalllegierungen unter vakuum und/oder schutzgasatmosphäre und verfahren zum quasi kontinuierlichen schmelzen und giessen von metall unter vakuum und/oder schutzgasatmosphäre

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140675B (de) * 1957-10-14 1962-12-06 Rheinstahl Eisenwerke Gelsenki Zufuehrungsgefaess zum selbsttaetigen Zufuehren des Giesswerkstoffes beim Stranggiessen
FR1290962A (fr) * 1961-03-08 1962-04-20 Loire Atel Forges Perfectionnements à l'alimentation des lingotières en coulée continue
SE356914B (pt) * 1969-04-15 1973-06-12 Voest Ag
DE2105881B2 (de) * 1971-02-01 1974-04-04 Mannesmann Ag, 4000 Duesseldorf Vorrichtung und Verfahren zum Einleiten einer Schmelze in eine Stranggießkokille
JPS5835051A (ja) * 1981-08-26 1983-03-01 Kawasaki Steel Corp 連続鋳造機におけるタンデイツシユ
GB2234261B (en) * 1989-07-26 1993-09-22 British Steel Plc Liquid metal processing
DE4006842A1 (de) * 1990-03-05 1991-09-12 Schloemann Siemag Ag Bandgiessanlage mit oszillierender durchlaufkokille
DE4319966A1 (de) * 1993-06-17 1994-12-22 Didier Werke Ag Eintauchausguß
US5622218A (en) * 1995-05-15 1997-04-22 Hylsa S.A. De C.V. Method and apparatus for continuous casting of steel materials

Also Published As

Publication number Publication date
BR9607672A (pt) 1998-06-16
DE59607366D1 (de) 2001-08-30
TR199600174A2 (tr) 1996-10-21
DE19680154D2 (de) 1998-05-07
US6070649A (en) 2000-06-06
AU4938296A (en) 1996-10-08
DE19512209C1 (de) 1996-07-18
CN1084233C (zh) 2002-05-08
KR19980702328A (ko) 1998-07-15
RU2146576C1 (ru) 2000-03-20
ZA962279B (en) 1996-10-07
WO1996029164A1 (de) 1996-09-26
JP3061641B2 (ja) 2000-07-10
CN1179121A (zh) 1998-04-15
EP0814928A1 (de) 1998-01-07
CZ295697A3 (cs) 1998-01-14
KR100265206B1 (ko) 2000-09-15
ATE203438T1 (de) 2001-08-15
JPH10510476A (ja) 1998-10-13

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