EP1002600B1 - Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines - Google Patents

Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines Download PDF

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Publication number
EP1002600B1
EP1002600B1 EP99122176A EP99122176A EP1002600B1 EP 1002600 B1 EP1002600 B1 EP 1002600B1 EP 99122176 A EP99122176 A EP 99122176A EP 99122176 A EP99122176 A EP 99122176A EP 1002600 B1 EP1002600 B1 EP 1002600B1
Authority
EP
European Patent Office
Prior art keywords
flow
height
contour element
pouring pipe
immersion pouring
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
EP99122176A
Other languages
German (de)
English (en)
Other versions
EP1002600A2 (fr
EP1002600A3 (fr
Inventor
Markus Dr. Reifferscheid
Holger Dr. Beyer-Steinhauer
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
Priority claimed from DE19908346A external-priority patent/DE19908346A1/de
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1002600A2 publication Critical patent/EP1002600A2/fr
Publication of EP1002600A3 publication Critical patent/EP1002600A3/fr
Application granted granted Critical
Publication of EP1002600B1 publication Critical patent/EP1002600B1/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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the invention relates to a submersible pouring tube for introducing melt, in particular Molten steel, from a casting or intermediate container in one with Breittimeund Narrow-side walls formed mold for continuous casting of particular Flat products, wherein the Tauchg screenrohr designed as a flow channel Pipe having, which with a wedge-shaped contour element and at least a flow divider with two opposite to the narrow side walls Outlet openings is formed.
  • Immersion tubes ensure a uniform and low-turbulence in the mold Distribution of the melt.
  • a submersible pouring tube must be designed to be a restless one G manaptier in the form of a pulsating up and down movement or a Wave motion within the mold is avoided.
  • These specifications must in particular dipping pipes for so-called thin slab formats, with a thickness between 30 and 100 mm, meet.
  • a Tauchg tellrohr for a thin slab which consists of a lower tube piece, which in the direction of the Narrow sidewalls of the mold are extended in cross-section and at the lower end with a centrally located bottom piece leaving outlet openings is provided for the melt.
  • the inner wall of the cross-section widening Part of the submersible pouring tube forms together with the opposite Wall portions of the bottom piece flow channels whose axes with the Tauchg phonerohrachachse include a certain angle between 10 and 22 Degree is.
  • This Tauchg phonerohr has a much greater width than thickness on.
  • the outlet openings from the Tauchg screenrohr are narrowed like a nozzle.
  • the present invention is based on the recognition that it is in the flow transition from the outlet openings of the Tauchg cordrohres in the mold not a free flow, but rather a Umströmvorgang is. This is the effective flow around the length of the central Contour element of the pouring tube of decisive importance, d. H. the longer the effective length of the soil element, the more stable the flow division and leadership.
  • the object of the invention is the above-mentioned finding in a Tauchg tellrohr the genus mentioned above constructively realize so that a stable flow division is ensured by the dip tube and a largely low-turbulence inflow of the melt from the immersion nozzle in the Melting sump of the mold can be done.
  • the object is achieved with a submersible pouring tube of the type mentioned with the invention in that the contour element with a merging into one another merging a massive, opposite wall portions connecting part with the height (H 1 ) and a pair above the same outgoing from this Strömungsmaschinem with in Direction of the X-axis provided height (H 2 ) is formed projecting projecting from the wall portions in the pipe section of the flow channel without firm connection with the opposite wall areas and the height H 1 of the contour element is greater together with the height H 2 of the flow divider as the height L 1 of an outlet opening.
  • the contour element is an opposite wall portions of the pipe section connecting solid molding with the height H 1 , resulting from the fact that it preferably has in the direction of the outlet openings the spatial shape of a tapered to opposite sides of the wedge.
  • a particularly preferred embodiment of the dip tube is achieved in that the contour element in the direction of its outlet openings has the spatial shape of a concave, in particular a polynomial function at least second order defining curve.
  • the further advantageous embodiment of the invention further provides that the flow dividers are designed as flow guide with rectangular or trapezoidal cross section whose width b and / or height h over the length L of the pipe section is variable, and that the flow guide the height L 1 of the outlet openings overtop.
  • FIG. 1 shows the immersion casting tube 1 for introducing molten steel from a Casting or intermediate container 3 in a mold 5, in particular for casting Thin slabs spatially through broad side walls 14 and narrow side walls 15 is limited.
  • the reaching into the melt pool of the mold 5 Tauchgitrohr 1 shows a lower tube piece with two outlet openings 8, 8 ', which are in Direction of the narrow side walls 15 of the mold 5 show.
  • Figure 2a shows the inventive design of the Tauchg screenrohres 1, after which the lower tube piece a solid contour element 10 and flow divider 12th and the height H1 + H2, which is the flow distribution in the flow channel 2 of the pipe section, is greater than the height L1 of the outlet opening 8, 8 '.
  • the contour element 10 consists of a solid, opposite wall areas connecting part with the height H1.
  • flow guide 12 are shown, starting from opposite wall portions in the flow channel 2 of the pipe section. 1 protrude and stabilize the flow jet.
  • the widths b and / or the height h the flow guide 12 can vary over the length of the dip tube L. be.
  • Figures 4a to 4c is a particularly favorable form of massive Contour element 10 shown, with the shape of a tapered to both sides Wedge, preferably with a concave, via a polynomial function at least second order waveform to be defined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (8)

  1. Tube plongeur (1) pour introduire un métal fondu, en particulier de l'acier, à partir d'un réservoir de coulée ou d'un réservoir intermédiaire (3) dans une coquille ou lingotière (5), constituée de parois larges (14) et de parois étroites (15) pour la coulée continue de produits plats en particulier, du type dans lequel le tube plongeur (1) présente une partie tubulaire (11), sous la forme d'un canal d'écoulement ou de flux et également conformée avec un élément à profil formant contour (10), en forme de coin, coopérant avec au moins un diviseur de flux (12) avec deux ouvertures de sortie (8,8') opposées en direction des parois étroites (15),
    caractérisé en ce que l'élément à profil formant contour (10) est conformé par la combinaison, selon un profil de recouvrement mutuel, d'une partie (10), de hauteur (H1) et reliant des zones de parois opposées, et d'une paire de diviseurs de flux (12), disposés sur une hauteur (H2), dans le sens de l'axe X- X, au- dessus de ladite partie (10) et s'élevant en saillie à partir desdites zones de paroi à l'intérieur de la partie tubulaire (11) dudit canal d'écoulement, sans liaison solide avec les zones opposées de paroi, et en ce que la somme de la hauteur (H1) de l'élément à profil formant contour (10) et de la hauteur (H2) des diviseurs de flux (12) est supérieure à la hauteur (L1) d'une ouverture de sortie (8,8').
  2. Tube plongeur selon la revendication 1, caractérisé en ce que les diviseurs de flux (12) se dressent dans la partie tubulaire (11), sans formation d'une liaison solide des zones de paroi antagonistes.
  3. Tube plongeur selon la revendication 1 ou 2, caractérisé en ce que l'élément à profil formant contour (10) est en forme de coin, dont le profil va en diminuant ou en se resserrant sur les côtés opposés.
  4. Tube plongeur selon l'une des revendications 1 à 3, caractérisé en ce que l'élément à profil formant contour (10) présente, en direction des ouvertures de sortie (8,8'), un profil en forme de courbe concave définie, de préférence une fonction polynomiale de puissance au moins égale à deux.
  5. Tube plongeur selon l'une au moins des revendications 1 à 4, caractérisé en ce que les diviseurs de flux (12) sont conformés comme des dispositifs de guidage de flux, de section transversale rectangulaire ou trapézoïdale, dont la largeur (b) et/ ou la hauteur (h) est variable sur la longueur (L) de la partie tubulaire (11).
  6. Tube plongeur selon l'une au moins des revendications 1 à 5, caractérisé en ce que les dispositifs de guidage de flux (12) dépassent, en hauteur, la hauteur (L1) des ouvertures de sortie (8,8').
  7. Tube plongeur selon l'une au moins des revendications 1 à 6, caractérisé en ce que l'élément à profil formant contour (10), associé aux dispositifs de guidage de flux (12), présente des zones arrondies sur ses arêtes et/ou portions de surface de transition.
  8. Tube plongeur selon l'une au moins des revendications 1 à 7, caractérisé en ce que les dispositifs de guidage de flux (12), associés à l'élément à profil formant contour (10), constituent soit un élément unique interchangeable, soit un élément encastré ou noyé dans la matrice dudit élément à profil formant contour (10).
EP99122176A 1998-11-20 1999-11-05 Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines Expired - Lifetime EP1002600B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19853723 1998-11-20
DE19853723 1998-11-20
DE19908346A DE19908346A1 (de) 1998-11-20 1999-02-26 Tauchgießrohr zum Einleiten von Schmelze in eine Kokille zum Stranggießen insbesondere von Flachprodukten
DE19908346 1999-02-26

Publications (3)

Publication Number Publication Date
EP1002600A2 EP1002600A2 (fr) 2000-05-24
EP1002600A3 EP1002600A3 (fr) 2001-04-04
EP1002600B1 true EP1002600B1 (fr) 2004-01-21

Family

ID=26050298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122176A Expired - Lifetime EP1002600B1 (fr) 1998-11-20 1999-11-05 Tube plongeur pour introduire un métal fondu, dans une coquille pour la coulée en continue de plaques fines

Country Status (3)

Country Link
EP (1) EP1002600B1 (fr)
AT (1) ATE258088T1 (fr)
ES (1) ES2214796T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2679664C2 (ru) * 2014-06-11 2019-02-12 Арведи Стил Энджиниринг С.П.А. Стакан для литья тонких слябов для распределения расплавленного металла с высоким расходом
CN118682117A (zh) * 2023-03-21 2024-09-24 宝山钢铁股份有限公司 一种防卷渣的浸入式水口及应用方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032624A1 (de) * 1990-10-15 1992-04-16 Schloemann Siemag Ag Tauchgiessrohr zum einleiten von stahlschmelze in eine stranggiesskokille
DE4142447C3 (de) * 1991-06-21 1999-09-09 Mannesmann Ag Tauchgießrohr - Dünnbramme
US5785880A (en) * 1994-03-31 1998-07-28 Vesuvius Usa Submerged entry nozzle
IT1267299B1 (it) * 1994-09-30 1997-01-28 Danieli Off Mecc Scaricatore per cristallizzatore per colata continua di bramme sottili
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
ATE258088T1 (de) 2004-02-15
EP1002600A2 (fr) 2000-05-24
ES2214796T3 (es) 2004-09-16
EP1002600A3 (fr) 2001-04-04

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