EP0403808A1 - Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue - Google Patents

Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue Download PDF

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Publication number
EP0403808A1
EP0403808A1 EP90109626A EP90109626A EP0403808A1 EP 0403808 A1 EP0403808 A1 EP 0403808A1 EP 90109626 A EP90109626 A EP 90109626A EP 90109626 A EP90109626 A EP 90109626A EP 0403808 A1 EP0403808 A1 EP 0403808A1
Authority
EP
European Patent Office
Prior art keywords
outflow openings
pouring tube
tube according
immersion pouring
width
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
Application number
EP90109626A
Other languages
German (de)
English (en)
Other versions
EP0403808B1 (fr
Inventor
Hans Streubel
Horst Grothe
Jürgen Friedrich
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 Schloemann Siemag AG
Schloemann Siemag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6382053&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0403808(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0403808A1 publication Critical patent/EP0403808A1/fr
Application granted granted Critical
Publication of EP0403808B1 publication Critical patent/EP0403808B1/fr
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

Definitions

  • the invention relates to an immersion pouring tube for introducing molten steel into the pouring area of a mold consisting of broad side walls and narrow side walls, in particular for casting thin steel strips, consisting of a pipe part connected to a casting container and an end part, which in the direction of the narrow side walls each have an outflow opening and an end-side base piece is provided.
  • a flattened end part with slot-like outlet openings and a base piece with a raised inner contour are arranged on the cylindrical tube part.
  • the base piece has a greater extent in the direction of the outflow openings than the distance between the walls delimiting the outflow openings upwards.
  • the known pouring tube has not grown with the required operational reliability and service life, despite the complex manufacture of the high stresses in continuous steel casting.
  • the molten steel emerges from the narrow outflow openings with excessive kinetic energy, which leads to washing out of the still thin strand shell and the formation of a damming wave in front of the narrow side walls, particularly in a narrow steel strip casting mold.
  • the object of the invention is to provide an easy to manufacture, robust and reliable immersion pouring tube for pouring molten steel into a mold, in particular for casting steel strips, whereby due to better flow distribution, a damming wave in the surface of the bath surface and a washing out of the strand shell formed by the liquid steel are greatly reduced and a casting strand, in particular steel strip with a good structure and a uniformly flawless surface, is achieved.
  • the spraying and baking of molten steel on the mold walls should be avoided during the casting process.
  • the invention is based on the knowledge that the cause of an uneven, unstable melt distribution within the mold is an uneven exit velocity over the exit cross sections.
  • the object of the invention is to provide a robust and reliable immersion pouring tube for pouring molten steel into a metal strip casting mold, whereby due to better flow distribution, a ram wave on the surface of the bath surface and washouts of the strand shell being formed by the pouring jet are avoided and a casting strand, in particular steel strip with a good structure and uniformly error-free Surface is achieved.
  • the spraying and baking of steel on the mold walls should be avoided during the casting process.
  • the object is achieved in that, in the case of an immersion pouring tube of the above type, the base piece has a smaller width a in the direction of the outflow openings than the distance b between the walls delimiting the outflow openings upwards.
  • the new immersion pouring tube is easy to manufacture and has a long service life.
  • the base piece has a width a in the direction of the outflow opening between 30% and 80% of the distance b between the walls delimiting the outflow openings upwards.
  • the bottom piece can be flat, raised or trough-shaped on the inside.
  • the side surfaces of the immersion pour tube can run towards the base at an angle.
  • the side faces of the pouring jet line can extend beyond the width a of the base piece.
  • the flow distribution can finally be further improved by reducing the width of the outflow openings in the direction of the base piece.
  • FIG. 1 there is an immersion pouring tube 3 at the bottom outlet 1 of a casting container 2, the lower end of which projects into a steel strip casting mold 4 to below the casting level 5.
  • the steel strip casting mold 4 consists of two cooled broad side walls 6 and two narrow side walls 7 which are adjustably arranged between them.
  • the wide side walls 6 form an enlarged pouring area 8 for receiving the immersion pouring tube 3, which extends over part of the mold height.
  • the immersion pouring tube 3 is designed in such a way that an approximately circular inlet cross-section 9 at the end merges into an oval shape 10.
  • An outflow opening 11 is arranged in each case in the narrow sides of the oval-shaped end.
  • the Outflow openings 11 are bounded at the bottom by a base piece 12, the width a of which is smaller than the distance b of the walls above.
  • the bottom piece width a is advantageously 30-80% of the distance b.
  • the flat, wide pouring tube walls 13 run at an angle to the base piece 12.
  • the wide pouring tube walls 14 according to FIG. 5 can run in full width to the end of the pouring tube, as a result of which additional guide surfaces 15 are formed in front of the outflow openings 11.
  • the outflow openings 11 are designed as upright ovals 16. As can be seen from FIG. 4, the width of the outflow openings 11 can be reduced downwards.
  • the invention is not restricted to the exemplary embodiment shown.
  • the immersion pouring tube according to the invention is also suitable for mold shapes other than the one shown, in particular with a mold space which becomes narrower towards the mold end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Ink Jet (AREA)
EP90109626A 1989-06-03 1990-05-21 Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue Expired - Lifetime EP0403808B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918228A DE3918228C2 (de) 1989-06-03 1989-06-03 Tauchgießrohr zum Einleiten von Stahlschmelze in eine Stranggießkokille
DE3918228 1989-06-03

Publications (2)

Publication Number Publication Date
EP0403808A1 true EP0403808A1 (fr) 1990-12-27
EP0403808B1 EP0403808B1 (fr) 1992-09-30

Family

ID=6382053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109626A Expired - Lifetime EP0403808B1 (fr) 1989-06-03 1990-05-21 Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue

Country Status (16)

Country Link
EP (1) EP0403808B1 (fr)
JP (1) JPH0327852A (fr)
KR (1) KR960003716B1 (fr)
CN (1) CN1018339B (fr)
AT (1) ATE81046T1 (fr)
BR (1) BR9002581A (fr)
CA (1) CA2018079C (fr)
DD (1) DD294889A5 (fr)
DE (2) DE3918228C2 (fr)
DK (1) DK0403808T3 (fr)
ES (1) ES2035678T3 (fr)
GR (1) GR3006098T3 (fr)
RU (1) RU1833245C (fr)
TR (1) TR24409A (fr)
UA (1) UA12309A (fr)
ZA (1) ZA904020B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000191A1 (fr) * 1991-06-21 1993-01-07 Mannesmann Ag Busette de coulee par immersion pour brames minces
WO1995029025A1 (fr) * 1994-04-25 1995-11-02 Vesuvius Usa Ajutage d'etree submerge
EP0900609A1 (fr) * 1997-09-03 1999-03-10 Sms Schloemann-Siemag Aktiengesellschaft Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille
US5944261A (en) * 1994-04-25 1999-08-31 Vesuvius Crucible Company Casting nozzle with multi-stage flow division
US6027051A (en) * 1994-03-31 2000-02-22 Vesuvius Crucible Company Casting nozzle with diamond-back internal geometry and multi-part casting nozzle with varying effective discharge angles
WO2003061880A1 (fr) * 2002-01-23 2003-07-31 Sms Demag Ag Busette de coulee immergee pour conteneur metallurgique monte en amont d'un dispositif de coulee
EP4374986A1 (fr) 2022-11-25 2024-05-29 SMS Concast AG Installation de coulée continue, en particulier pour la coulée de produits longs métallurgiques, ainsi qu'une buse de coulée

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4319966A1 (de) * 1993-06-17 1994-12-22 Didier Werke Ag Eintauchausguß
DE10130354C1 (de) * 2001-06-23 2003-01-23 Thyssenkrupp Stahl Ag Tauchrohr und Verfahren zum optimierten Vergießen einer Stahlschmelze in einer Kokille
DE102007011253B4 (de) * 2007-03-08 2019-07-11 Bayerische Motoren Werke Aktiengesellschaft Herstellung von Gussteilen durch direkte Formfüllung
CN214161385U (zh) 2019-05-23 2021-09-10 维苏威集团有限公司 浇铸水口
DE102021130304A1 (de) 2021-11-19 2023-05-25 Bayerische Motoren Werke Aktiengesellschaft Vorratsbehälter für flüssiges Metall
CN114799077A (zh) * 2022-04-29 2022-07-29 哈焊所华通（常州）焊业股份有限公司 连续浇铸模

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758777A1 (de) * 1968-08-05 1971-04-22 Demag Ag Verfahren und Giessmetallzufuehrung zum Stranggiessen von Metall,insbesondere von Stahl
EP0254909A1 (fr) * 1986-07-12 1988-02-03 Thyssen Stahl Aktiengesellschaft Busette de coulée réfractaire
WO1988006932A1 (fr) * 1987-03-20 1988-09-22 Mannesmann Ag Bec de coulee par immersion pour recipients metallurgiques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2259872A1 (de) * 1972-12-07 1974-06-12 Ferrocast Fa Beim vergiessen von stahl auf dessen oberflaeche aufzubringendes und dort aufschmelzendes gemenge
JPS58107252U (ja) * 1981-12-10 1983-07-21 品川白煉瓦株式会社 連続鋳造用浸漬ノズル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758777A1 (de) * 1968-08-05 1971-04-22 Demag Ag Verfahren und Giessmetallzufuehrung zum Stranggiessen von Metall,insbesondere von Stahl
EP0254909A1 (fr) * 1986-07-12 1988-02-03 Thyssen Stahl Aktiengesellschaft Busette de coulée réfractaire
WO1988006932A1 (fr) * 1987-03-20 1988-09-22 Mannesmann Ag Bec de coulee par immersion pour recipients metallurgiques

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000191A1 (fr) * 1991-06-21 1993-01-07 Mannesmann Ag Busette de coulee par immersion pour brames minces
US5402993A (en) * 1991-06-21 1995-04-04 Mannesmann Aktiengesellschaft Immersion casting pipe for thin slabs
US5785880A (en) * 1994-03-31 1998-07-28 Vesuvius Usa Submerged entry nozzle
US6027051A (en) * 1994-03-31 2000-02-22 Vesuvius Crucible Company Casting nozzle with diamond-back internal geometry and multi-part casting nozzle with varying effective discharge angles
WO1995029025A1 (fr) * 1994-04-25 1995-11-02 Vesuvius Usa Ajutage d'etree submerge
US5944261A (en) * 1994-04-25 1999-08-31 Vesuvius Crucible Company Casting nozzle with multi-stage flow division
CN1081501C (zh) * 1994-04-25 2002-03-27 维苏威坩埚公司 浸没式喷管
US6464154B1 (en) 1994-04-25 2002-10-15 Versuvius Crucible Company Casting nozzle with diamond-back internal geometry and multi-part casting nozzle with varying effective discharge angles and method for flowing liquid metal through same
EP0900609A1 (fr) * 1997-09-03 1999-03-10 Sms Schloemann-Siemag Aktiengesellschaft Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille
WO2003061880A1 (fr) * 2002-01-23 2003-07-31 Sms Demag Ag Busette de coulee immergee pour conteneur metallurgique monte en amont d'un dispositif de coulee
US7077343B2 (en) 2002-01-23 2006-07-18 Sms Demag Ag Submerged nozzle for a metallurgic container placed upstream from a casting device
EP4374986A1 (fr) 2022-11-25 2024-05-29 SMS Concast AG Installation de coulée continue, en particulier pour la coulée de produits longs métallurgiques, ainsi qu'une buse de coulée

Also Published As

Publication number Publication date
KR960003716B1 (en) 1996-03-21
CN1018339B (zh) 1992-09-23
DE59000328D1 (de) 1992-11-05
DE3918228C2 (de) 1996-11-07
CN1047819A (zh) 1990-12-19
ZA904020B (en) 1991-02-27
UA12309A (uk) 1996-12-25
DD294889A5 (de) 1991-10-17
DE3918228A1 (de) 1990-12-06
JPH0327852A (ja) 1991-02-06
RU1833245C (en) 1993-08-07
CA2018079A1 (fr) 1990-12-03
EP0403808B1 (fr) 1992-09-30
DK0403808T3 (da) 1993-03-08
ATE81046T1 (de) 1992-10-15
BR9002581A (pt) 1991-08-20
GR3006098T3 (fr) 1993-06-21
CA2018079C (fr) 2000-04-04
TR24409A (tr) 1991-11-01
ES2035678T3 (es) 1993-04-16
KR910000269A (ko) 1991-01-29

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