EP0482423B1 - Tube plongeur de coulée pour l'introduction d'acier liquide dans une lingotière de coulée continue - Google Patents

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

Info

Publication number
EP0482423B1
EP0482423B1 EP91117179A EP91117179A EP0482423B1 EP 0482423 B1 EP0482423 B1 EP 0482423B1 EP 91117179 A EP91117179 A EP 91117179A EP 91117179 A EP91117179 A EP 91117179A EP 0482423 B1 EP0482423 B1 EP 0482423B1
Authority
EP
European Patent Office
Prior art keywords
outflow
pouring tube
immersion
web
tube according
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.)
Revoked
Application number
EP91117179A
Other languages
German (de)
English (en)
Other versions
EP0482423A1 (fr
Inventor
Hans Streubel
Jürgen Friedrich
Horst Grothe
Günter Dr. Flemming
Erk Boysen
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=6416275&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0482423(B1) "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 EP0482423A1 publication Critical patent/EP0482423A1/fr
Application granted granted Critical
Publication of EP0482423B1 publication Critical patent/EP0482423B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • 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 metal, in particular liquid steel, into the pouring region of a continuous casting installation, consisting of an inflow part connected to a casting container and a flattened outflow part with surfaces located on a web for dividing the inflow flow into at least two partial flows and with surfaces for combining Partial flows in front of the outflow opening.
  • 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.
  • This well-known pouring tube has not grown with the required operational reliability and service life despite the complex production 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.
  • an irregular surface structure is formed due to the uneven flow distribution within the mold.
  • the object of the invention is to provide a reliable immersion pouring tube for pouring molten steel into a mold, in particular for casting steel strips, whereby due to better flow distribution, a build-up wave in the surface of the bath surface and a washing out of the strand shell that is formed by the liquid steel are greatly reduced and a casting strand, in particular steel strip, is provided 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 too high and uneven exit velocity over the exit cross-sections.
  • the object is achieved in that the outflow part has surfaces for diverting the partial flows up to opposite directions in front of the outflow opening.
  • the outflow part has lateral guide surfaces, bottom surfaces and and the underside of the web above the outflow opening at a distance from the web.
  • the width w of the outflow opening corresponds to at least twice the distance a of the web sliding surface from the floor.
  • the width of the outflow part parallel to the wide walls is between 350 and 550 mm.
  • FIG. 1 there is an immersion pouring tube 3 at the bottom outlet 1 of a casting container 2, the lower end of which extends 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 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 consists of a connecting piece 9, a flat outflow part 10 and a transition part 11.
  • the outflow part 10 is formed by two wide walls 12, two guide walls 13 and a bottom 14.
  • the web 16 has two partial surfaces 17 on the upper side, which in the exemplary embodiment are inclined toward one another in a roof-like manner. Through the partial surfaces 17 or, for example, a curved upper side, the upstream flow 18 is separated into two partial flows 19.
  • the partial flows 19 are deflected twice on the guide walls 13 and the bottom 14, so that they meet below the guide surface 20 of the web 16, with considerable flow energy being consumed. As a result, a stream of liquid steel of low speed emerges from the outflow opening 15, so that a ram wave and washing out of the strand shell are avoided.
  • the lower guide surface 20 of the web 16 determines the height of the lateral flow cross sections, i.e. the distance a of the guide surface 20 from the floor 14. This can advantageously be 50 to 150 mm.
  • the wide walls 12 are shorter in the area of the outflow openings 15 than in the area of the bottom 14.
  • the width b of the outflow part 10 can be between 350-550 mm.
  • the width w of the outflow opening 15 should be at least twice the distance a between the guide surface 20 and the floor 14.
  • the invention is not restricted to the exemplary embodiment shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Claims (6)

  1. Busette de coulée immergée pour l'introduction d'un bain métallique fondu, notamment d'acier liquide, dans la zone de coulée d'une installation de coulée continue, constituée par une partie d'alimentation (9,11) raccordée à un panier de coulée (2) et par une partie d'évacuation aplatie (10) munie de surfaces (17) agencées sur une nervure (16) pour la division du courant d'alimentation en au moins deux courants partiels (19) et de surfaces (13,14) pour la réunion des courants partiels en aval de l'ouverture d'évacuation (15),
    caractérisée en ce que la partie d'évacuation (10) comporte des surfaces (13,14,20) pour la déviation des courants partiels (19) selon des directions opposées en aval de l'ouverture d'évacuation (15).
  2. Busette de coulée immergée selon la revendication 1 caractérisée en ce que la partie d'évacuation (10) présente des surfaces de guidage latérales (13) agencées à distance de la nervure (16), des surfaces de fond (14) et une surface de guidage (20) à la face inférieure de la nervure, au-dessus de l'ouverture d'évacuation (15).
  3. Busette de coulée immergée selon les revendications 1 et 2 caractérisée en ce que la surface de guidage (20) est agencée à distance (a=50-150mm) d'un fond (14) muni de l'ouverture d'évacuation (15).
  4. Busette de coulée immergée selon les revendications 1 à 3 caractérisée en ce que la largeur W de l'ouverture d'évacuation (15) correspond au moins au double de la distance a entre la surface de guidage de la nervure (20) et le fond (14).
  5. Busette de coulée immergée selon les revendications 1 à 4 caractérisée en ce que les parois larges (12) sont de tout au plus 0,5a plus courte dans la zone des ouvertures d'évacuation (15) que dans la zone du fond (14).
  6. Busette de coulée immergée selon les revendications 1 à 5 caractérisée en ce que la largeur b de la partie d'évacuation (10) parallèlement aux parois larges (12) est comprise entre 350 et 550 mm.
EP91117179A 1990-10-15 1991-10-09 Tube plongeur de coulée pour l'introduction d'acier liquide dans une lingotière de coulée continue Revoked EP0482423B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4032624 1990-10-15
DE4032624A DE4032624A1 (de) 1990-10-15 1990-10-15 Tauchgiessrohr zum einleiten von stahlschmelze in eine stranggiesskokille

Publications (2)

Publication Number Publication Date
EP0482423A1 EP0482423A1 (fr) 1992-04-29
EP0482423B1 true EP0482423B1 (fr) 1994-08-03

Family

ID=6416275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117179A Revoked EP0482423B1 (fr) 1990-10-15 1991-10-09 Tube plongeur de coulée pour l'introduction d'acier liquide dans une lingotière de coulée continue

Country Status (3)

Country Link
EP (1) EP0482423B1 (fr)
AT (1) ATE109386T1 (fr)
DE (2) DE4032624A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2250461B (en) * 1990-11-14 1994-06-29 Ishikawajima Harima Heavy Ind Strip casting
DE4142447C3 (de) * 1991-06-21 1999-09-09 Mannesmann Ag Tauchgießrohr - Dünnbramme
DE4300505C2 (de) * 1993-01-06 1995-08-24 Mannesmann Ag Tauchgießrohr für metallurgische Gefäße
DE4319966A1 (de) * 1993-06-17 1994-12-22 Didier Werke Ag Eintauchausguß
US5944261A (en) * 1994-04-25 1999-08-31 Vesuvius Crucible Company Casting nozzle with multi-stage flow division
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
DE4436990C1 (de) * 1994-10-07 1995-12-07 Mannesmann Ag Tauchgießrohr
UA51734C2 (uk) * 1996-10-03 2002-12-16 Візувіус Крусібл Компані Занурений стакан для пропускання рідкого металу і спосіб пропускання рідкого металу через нього
EP1002600B1 (fr) * 1998-11-20 2004-01-21 SMS Demag AG Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines
DE10203594C1 (de) 2002-01-23 2003-05-15 Sms Demag Ag Tauchausguss für ein einer Gießeinrichtung vorgeschaltetes metallurgisches Gefäß
DE10240491A1 (de) * 2002-09-03 2004-01-15 Refractory Intellectual Property Gmbh & Co.Kg Feuerfestes keramisches Tauchrohr
KR100551997B1 (ko) * 2003-08-27 2006-02-20 조선내화 주식회사 연속주조용 침지노즐
WO2005021187A1 (fr) * 2003-08-27 2005-03-10 Chosun Refractories Co., Ltd. Busette immergee pour la coulee continue
CA2837888C (fr) * 2011-07-06 2019-02-26 Refractory Intellectual Property Gmbh & Co. Kg Buse pour guider un metal en fusion
BR112016028870B1 (pt) * 2014-06-11 2021-05-18 Arvedi Steel Engineering S.P.A. bocal de placa delgada para distribuir altas taxas de fluxo de massa e instalação para fundição de metal para fundir placas delgadas
CN112548086B (zh) * 2020-12-03 2022-05-17 一重集团大连工程技术有限公司 一种抑制液面波动的板坯浸入式水口

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623660A1 (de) * 1986-07-12 1988-01-14 Thyssen Stahl Ag Feuerfestes giessrohr
DE3709188A1 (de) * 1987-03-20 1988-09-29 Mannesmann Ag Ausgiessrohr fuer metallurgische gefaesse
DE3811751A1 (de) * 1988-04-08 1989-10-19 Schloemann Siemag Ag Tauchgiessrohr zum einleiten von metallschmelze in eine metallbandgiesskokille
GB8814331D0 (en) * 1988-06-16 1988-07-20 Davy Distington Ltd Continuous casting of steel

Also Published As

Publication number Publication date
DE4032624A1 (de) 1992-04-16
ATE109386T1 (de) 1994-08-15
DE59102423D1 (de) 1994-09-08
EP0482423A1 (fr) 1992-04-29

Similar Documents

Publication Publication Date Title
EP0482423B1 (fr) Tube plongeur de coulée pour l'introduction d'acier liquide dans une lingotière de coulée continue
EP0254909B1 (fr) Busette de coulée réfractaire
DE69702984T2 (de) Tauchgiessrohr zum stranggiessen von dünnbrammen
WO1993000191A1 (fr) Busette de coulee par immersion pour brames minces
DE69819931T2 (de) Tauchdüse
EP0403808B1 (fr) Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue
DE2527585A1 (de) Giessrohr mit einer bodenoeffnung zum kontinuierlichen stahlstranggiessen
DE2417512A1 (de) Verfahren zum einbringen von stahl in eine stranggiesskokille und vorrichtung dazu
DE2442915A1 (de) Giessrohr mit geschlossenem boden und einander gegenueberliegenden seitlichen oeffnungen
AT400935B (de) Tauchgiessrohr
DE3524372C2 (fr)
EP0784523B1 (fr) Buse de coulee immergee
EP0904873B1 (fr) Moule en forme d'entonnoir pour coulée continue de metal
DE2548585B2 (de) Vorrichtung zum stranggiessen von stahl
EP0900609B1 (fr) Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille
DE4006842A1 (de) Bandgiessanlage mit oszillierender durchlaufkokille
DE19753537A1 (de) Trichtergeometrie einer Kokille zum Stranggießen von Metall
EP1002600B1 (fr) Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines
EP0934786A1 (fr) Procédé pour la coulée continue de metal et installation de coulée continue appropriée
DE2412053C2 (de) Vorrichtung zum Zuführen und Verteilen von Stahlschmelzen
EP0151802B1 (fr) Dispositif pour l'introduction de métal liquide, en particulier d'acier liquide dans une coquille de coulée continue
DE19505390C2 (de) Tauchgießrohr
DE3929767A1 (de) Eingiesssystem fuer eine stahlbandgiessanlage
DE1583568C (de) Vertikale isolierende Trenn wand zwischen einem Schmelzenbe halter und einer horizontalen ge kühlten Stranggießkokille fur Leichtmetallbarren
WO1989002801A1 (fr) Procede et dispositif pour regler l'admission d'un liquide dans un recipient

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19911104

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17Q First examination report despatched

Effective date: 19920813

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940803

Ref country code: GB

Effective date: 19940803

Ref country code: FR

Effective date: 19940803

Ref country code: DK

Effective date: 19940803

Ref country code: BE

Effective date: 19940803

REF Corresponds to:

Ref document number: 109386

Country of ref document: AT

Date of ref document: 19940815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59102423

Country of ref document: DE

Date of ref document: 19940908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19941031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19941031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19941031

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19941103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19941104

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19941104

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940803

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26 Opposition filed

Opponent name: MANNESMANN AG

Effective date: 19950503

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19951025

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19951219

Year of fee payment: 5

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19960811