EP0996513B1 - Verfahren und vorrichtung zum erzeugen von brammen - Google Patents

Verfahren und vorrichtung zum erzeugen von brammen Download PDF

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Publication number
EP0996513B1
EP0996513B1 EP98934867A EP98934867A EP0996513B1 EP 0996513 B1 EP0996513 B1 EP 0996513B1 EP 98934867 A EP98934867 A EP 98934867A EP 98934867 A EP98934867 A EP 98934867A EP 0996513 B1 EP0996513 B1 EP 0996513B1
Authority
EP
European Patent Office
Prior art keywords
mould
molten mass
melt
fact
crater
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
EP98934867A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0996513A1 (de
Inventor
Ulrich Urlau
Hans Jürgen SCHEMEIT
Gerhard Böcher
Peter Müller
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.)
Salzgitter AG
SMS Siemag AG
Original Assignee
Salzgitter AG
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 Salzgitter AG, SMS Demag AG filed Critical Salzgitter AG
Publication of EP0996513A1 publication Critical patent/EP0996513A1/de
Application granted granted Critical
Publication of EP0996513B1 publication Critical patent/EP0996513B1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0408—Moulds for casting thin slabs
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0406—Moulds with special profile
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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

Definitions

  • the invention relates to a method for producing slabs with a thickness D> 100 mm at casting speeds v ⁇ 3m / min, in a continuous caster at which a mold from a reservoir via a dip spout melt and from the muzzle side the strand shell encompassing a swamp Strand guiding scaffold, in particular a continuous sheet caster, is withdrawn, and a corresponding continuous caster.
  • Figure 4 is at the mouth of the immersion spout Baffle element provided that the liquid melt to two openings at the Distracts narrow sides of the spout.
  • Figure 5 shows that two substreams arise with the high energy of each individual filament to swirl the Cause melt.
  • DE 43 20 723 describes an immersion nozzle, in particular for thin slab casting, known, which has a lower portion of parallel side walls. Before entering the lower section, a crossbar is provided, which the Melt flow in the direction of the extension of the lower flow shaft deflects. The narrow sides of this especially for thin slab plants The intended diving spout are guided in parallel.
  • the diving spouts known from the cited documents produce one Pouring stream that flows into the depths at a relatively high speed Swamp penetrates.
  • the invention has the aim set, a method and a corresponding continuous caster for generating of slabs at avoiding concentrations of contaminants and in particular acid gas-resistant steel grades also on continuous sheet casting machines are pourable.
  • the invention achieves the goal through the features of Process claim 1 and device claim 5.
  • the liquid melt supplied to the mold occurs in a wide range higher speed compared to the strand withdrawal speed in the liquid sump of the slab. Based on the cross-section, the supplied Melt a rectangular profile and have a depth of no more than 2 m in the swamp the same speed as the slab.
  • the supplied liquid Melt with an entry profile in the swamp which acts as a rectangle is formed
  • the immersion spout used for this has Narrow side walls that are tapered at an angle with respect to the center axis Open ⁇ from 15 to 30 °.
  • the profile created by the proposed process in the mold has this also has a positive influence on the movement of the melt in the area of Melt level in the mold and its behavior with regard to the mold powder.
  • the proposed method will produce slabs for steel grades with high demands both on the non-metallic degree of purity and on freedom from segregation, as is the case, for example, with acid gas-resistant steel grades be required, possible.
  • the reduced Inflow speed of the steel in the ones in the strand shell Swamp reduced the solidification time.
  • this allows the specific Casting capacity of the plants are increased or, on the other hand, the specific Secondary cooling reduced with a view to improved surface quality become.
  • FIG. 1 shows a storage container 11 to which an immersion spout 12 is attached
  • the immersion spout 12 has a tubular part 13 and one on the mouth side spade-shaped part 14 with the narrow sides 16 and the broad sides 17.
  • Im A throttle 15 is provided in the transition area of both immersion pouring parts.
  • the spade-shaped part 14 extends to a depth T T into a mold 21 filled with melt S, which has narrow sides 22 and broad sides 23.
  • the current threads of the melt S are shown with the melt S z supplied and the sump S B. It can be seen that the current threads penetrate into the melt S enveloped by a strand shell K with a view of the broad sides to a depth L.
  • the supplied filaments have a speed v K.
  • the flow threads In the area of the narrow sides 16 of the immersion nozzle, the flow threads have an angle ⁇ to the central axis 1 and move relatively early towards the narrow sides 22 of the mold and strive in the area of the level P of the melt to the center of the mold 21.
  • the view AA is shown with the mold 21, which the Narrow sides 22 and the broad sides 23 which form a rectangle with the Width B and thickness D and area A.
  • the immersion nozzle 12 is arranged centrally in the cavity of the mold 21 Broad sides 17 and the narrow sides 16, which form a rectangle with the width b and the thickness d and the area a.
  • FIG. 2 schematically shows a section through the continuous casting installation, here an arc continuous casting installation, with the storage container 11 and the immersion spout 12 with the tubular part 13 and the spade-shaped part 14, here the broad sides 17.
  • a throttle 15 arranged In the transition area of the immersion pouring parts 13, 14 there is a throttle 15 arranged The mouth of the immersion pouring part 14 projects into the melt S located in the mold 21 to a depth T T.
  • the broad side walls 23 of the mold 21 are shown, at the mouth end of which a strand shell K has formed from the slab, which envelops the melt S up to the swamp tip S s .
  • the strand guide rollers 24 are arranged downstream of the mold 21.
  • the supplied melt S s penetrates into the swamp S B located in the mold at a speed v K, namely at a depth T with respect to the broad sides 23. Then the swamp has a speed v B which corresponds to the slab withdrawal speed and thus also corresponds to the strand shell K.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP98934867A 1997-06-03 1998-06-03 Verfahren und vorrichtung zum erzeugen von brammen Expired - Lifetime EP0996513B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19724232 1997-06-03
DE19724232A DE19724232C2 (de) 1997-06-03 1997-06-03 Verfahren und Vorrichtung zum Erzeugen von Brammen
PCT/DE1998/001544 WO1998055250A1 (de) 1997-06-03 1998-06-03 Verfahren und vorrichtung zum erzeugen von brammen

Publications (2)

Publication Number Publication Date
EP0996513A1 EP0996513A1 (de) 2000-05-03
EP0996513B1 true EP0996513B1 (de) 2001-10-17

Family

ID=7831904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98934867A Expired - Lifetime EP0996513B1 (de) 1997-06-03 1998-06-03 Verfahren und vorrichtung zum erzeugen von brammen

Country Status (19)

Country Link
US (1) US6626229B2 (cs)
EP (1) EP0996513B1 (cs)
JP (1) JP4542631B2 (cs)
KR (1) KR100585413B1 (cs)
AT (1) ATE206971T1 (cs)
AU (1) AU8433298A (cs)
BR (1) BR9810422A (cs)
CA (1) CA2292473A1 (cs)
CZ (1) CZ9904328A3 (cs)
DE (2) DE19724232C2 (cs)
DK (1) DK0996513T3 (cs)
ES (1) ES2162461T3 (cs)
HU (1) HU221712B1 (cs)
PL (1) PL337129A1 (cs)
SK (1) SK166399A3 (cs)
TR (1) TR199903016T2 (cs)
TW (1) TW404867B (cs)
UA (1) UA51790C2 (cs)
WO (1) WO1998055250A1 (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408962B (de) 2000-05-31 2002-04-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines stranggegossenen vorproduktes
AT507590A1 (de) † 2008-11-20 2010-06-15 Siemens Vai Metals Tech Gmbh Verfahren und stranggiessanlage zum herstellen von dicken brammen
EP2100676B1 (en) * 2008-12-17 2012-06-06 Peter Kovác Continuous cast method
PL3154726T3 (pl) * 2014-06-11 2019-04-30 Arvedi Steel Eng S P A Dysza do cienkich kęsisk płaskich do dystrybucji bardzo szybkich przepływów masowych
CN110695349B (zh) * 2019-11-21 2024-03-12 辽宁科技大学 一种csp薄板坯连铸高拉速浸入式水口及其制造方法
CN110666148B (zh) * 2019-11-21 2025-05-09 唐山钢铁集团有限责任公司 一种ftsc薄板坯连铸高通量浸入式水口
EP4374986A1 (de) * 2022-11-25 2024-05-29 SMS Concast AG Stranggiessanlage, insbesondere zum giessen metallurgischer langprodukte, sowie ein giessrohr

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105881B2 (de) * 1971-02-01 1974-04-04 Mannesmann Ag, 4000 Duesseldorf Vorrichtung und Verfahren zum Einleiten einer Schmelze in eine Stranggießkokille
AT331437B (de) * 1973-06-14 1976-08-25 Voest Ag Kontinuierliches stahlstranggiessverfahren und vorrichtung zu dessen durchfuhrung
US5205343A (en) * 1989-06-03 1993-04-27 Sms Schloemann-Siemag Aktiengesellschaft Pouring tube for feeding molten steel into a continuous casting mold
DE4142447C3 (de) * 1991-06-21 1999-09-09 Mannesmann Ag Tauchgießrohr - Dünnbramme
DE4320723A1 (de) * 1993-06-23 1995-01-05 Didier Werke Ag Eintauchausguß
US5785880A (en) * 1994-03-31 1998-07-28 Vesuvius Usa Submerged entry nozzle
IT1267284B1 (it) * 1994-08-08 1997-01-28 Danieli Off Mecc Scaricatore per colata continua
IT1267299B1 (it) * 1994-09-30 1997-01-28 Danieli Off Mecc Scaricatore per cristallizzatore per colata continua di bramme sottili
DE19512208C1 (de) * 1995-03-21 1996-07-18 Mannesmann Ag Tauchausguß zum Gießen von Metall
EP0798061A4 (en) * 1995-10-18 1999-06-30 Sumitomo Metal Ind Method for controlling the level of molten metal for a continuous casting machine
DE19623787C2 (de) * 1996-06-04 1998-07-02 Mannesmann Ag Verfahren und Vorrichtung zum Ausgießen von Stahl aus einem Tauchausguß
IT1284035B1 (it) * 1996-06-19 1998-05-08 Giovanni Arvedi Tuffante per la colata continua di bramme sottili

Also Published As

Publication number Publication date
JP2002501438A (ja) 2002-01-15
JP4542631B2 (ja) 2010-09-15
BR9810422A (pt) 2000-07-25
PL337129A1 (en) 2000-07-31
CA2292473A1 (en) 1998-12-10
SK166399A3 (en) 2000-07-11
ES2162461T3 (es) 2001-12-16
KR20010013247A (ko) 2001-02-26
HU221712B1 (hu) 2002-12-28
DE19724232C2 (de) 1999-04-15
HUP0004067A1 (en) 2001-03-28
UA51790C2 (uk) 2002-12-16
CZ9904328A3 (cs) 2002-03-13
TR199903016T2 (xx) 2000-07-21
DE59801802D1 (de) 2001-11-22
ATE206971T1 (de) 2001-11-15
HUP0004067A3 (en) 2001-05-28
WO1998055250A1 (de) 1998-12-10
DE19724232A1 (de) 1998-12-24
DK0996513T3 (da) 2001-11-19
US6626229B2 (en) 2003-09-30
KR100585413B1 (ko) 2006-06-02
AU8433298A (en) 1998-12-21
EP0996513A1 (de) 2000-05-03
TW404867B (en) 2000-09-11
US20030150588A1 (en) 2003-08-14

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