EP0900609A1 - Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille - Google Patents

Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille Download PDF

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Publication number
EP0900609A1
EP0900609A1 EP98116587A EP98116587A EP0900609A1 EP 0900609 A1 EP0900609 A1 EP 0900609A1 EP 98116587 A EP98116587 A EP 98116587A EP 98116587 A EP98116587 A EP 98116587A EP 0900609 A1 EP0900609 A1 EP 0900609A1
Authority
EP
European Patent Office
Prior art keywords
pouring tube
flow guide
immersion pouring
tube according
flow
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
EP98116587A
Other languages
German (de)
English (en)
Other versions
EP0900609B1 (fr
Inventor
Markus Dr. Reifferscheid
Ingo Dipl.-Ing. Schuster
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
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0900609A1 publication Critical patent/EP0900609A1/fr
Application granted granted Critical
Publication of EP0900609B1 publication Critical patent/EP0900609B1/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 an immersion pouring tube for introducing melt, in particular of molten steel from a casting or intermediate container in a mold with broad and narrow side walls, in particular for the continuous casting of flat products, comprising a connected to a casting or intermediate container, as a flow channel formed pipe section with at least two relative to it Central axis or to the focus of its cross-sectional area above of a floor element lying openings.
  • Immersion pouring tube usually takes place in the area of the inflow opening a regulation of the steel flow either centered over one and in the casting direction movably arranged plugs or over Slider plates movable perpendicular to the pouring direction in the outlet area the pouring or intermediate container.
  • Immersion pipes are intended for an even and constant in the mold ensure low-turbulence distribution of the melt.
  • Immersion pipes for example.
  • Floor and inner contour elements that for the shock-free degradation of the kinetic contained in the molten steel stream Should provide energy. Nevertheless, training often occurs a ram wave in front of the narrow side walls, connected with an irregular and unstable mold level.
  • the uneven melt distribution within the mold becomes caused by unstable flow processes, for example from asymmetrical Melt flows as they enter the inflow opening of the immersion pouring tube through the dynamic interaction of Plug or slide system and immersion tube inlet result.
  • turbulent flow fluctuations which with strong Pressure fluctuations go hand in hand and in the immersion pouring tube, for example cause which pass through the immersion nozzle and due to of its radially oriented part of the speed component for one-sided preference for one of the outlet openings to lead.
  • a change in preferred is also observed Exit opening, which causes recurring mold level fluctuations be brought about.
  • DE 41 42 447 C2 discloses an immersion pouring tube for introducing Melting steel from a casting tank into a mold consisting of a piece of pipe connected to the casting tank, which in the direction expanded to the narrow side walls of the mold in cross section and at the bottom with a centrally located bottom section below Leaving outlet openings for the melt is provided.
  • This document proposes that the inner wall of the Cross section expanding part of the immersion pouring tube together with the opposite wall parts of the base piece flow channels form, whose axes with the immersion nozzle axis between Include 10 and 22 °, the smaller angle one Distance between the narrow side walls of the mold of approx. 600 mm and the larger angles a distance from the narrow side walls of the mold 2000 mm and more is assigned and the distance of the broad side walls the mold is 50 to 100 mm apart.
  • This dip tube training is not suitable for unstable flow processes in the Connect mold.
  • Belgian patent application No. 792.540 discloses a dip tube for special use in the continuous casting of an aluminum-iron alloy. This leads to the deposition of aluminum oxide on the walls, in extreme cases until complete blockage of the Channels.
  • the special immersion pouring tube starting from an approximately circular cross section horseshoe-shaped Channels provided on its periphery, which are against the center Form directed wall parts, in which channels for passage a coolant are provided.
  • the invention lies Task based on specifying a dip tube, which one as possible results in even melt distribution in the mold those with flow control by plug or slide control generated non-uniform flow conditions and turbulence balances out, build-up of waves at the outlet into the mold, leaching on the still thin strand shell and thereby overall loss of quality in the surface of the cast product prevents as well as avoiding a complicated, costly and wear and tear design with a production economic resources and the longest possible availability enables.
  • the object is achieved with the invention in an immersion pouring tube of the type mentioned in the preamble of claim 1 in that the tube piece has flow guide bodies which extend from the inner wall of the flow channel against the central axis.
  • the design of the immersion pouring tube according to the invention is based on the knowledge that the cause of an uneven melt distribution within the mold is the result of unstable flow processes, which largely result from the pouring area of the immersion tube. These are caused by the dynamic interplay of the plug or slide system and the dip tube inlet. The turbulent flow fluctuations that occur there and are accompanied by strong pressure fluctuations pass through the dip tube and lead to the aforementioned negative phenomena. These are, in particular, vortex formations associated with an uneven, locally preferred application of the flow to the inner walls of the immersion pouring tube.
  • the immersion pouring tube 1 shown in FIG. 1 with its inflow opening 2 connects the casting or intermediate container 3, which up to Bathroom mirror 4 is filled with molten steel, with the mold 5, the is filled with molten steel up to the bathroom mirror 6.
  • any control element prlug or Slide lock
  • At 17 is the usual gain of the refractory material through high quality oxide components in the Area of the bath level 6 designated.
  • the exit end dips the pouring tube 1 with its opposite outlet openings 8, 8 'into the liquid melt 9 in the mold 5.
  • the lower end of the immersion pouring tube is provided with a base element 10, the two lateral outlet openings above it 8, 8 'are present.
  • the immersion pouring tube 1 forms one Pipe section 11, with several on the inner walls of the pipe section 11 Flow guide body 12, 13, seen in longitudinal section on the right and a flow guide body 12, 13 are present on the left.
  • the mold 5 has broad side walls 14 and narrow side walls 15, in particular in an embodiment for the continuous casting of flat products, being on the broad side walls 14, as well as on the Narrow side walls 15 a nascent formation of a Strand shell 16 is indicated.
  • Figures 2 a to 2 d show that the cross-sectional shape a flow guide body 12, 13 preferably a rectangular or Trapezoidal shape follows. Furthermore, it can be provided that the floor element 10 the shape of a wedge tapered on both sides has an even distribution of the melt flow favored in the two exit directions of the openings 8, 8 '.
  • FIG. 3 a A further beveling of the base element 10 can be seen from FIG. 3 a.
  • the edges of a flow guide body 12, 13 can also have fillets.
  • FIGS. 3a and 3c A further embodiment of the immersion pouring tube 1 is shown in FIGS. 3a and 3c.
  • a flow channel can have a circular, elliptical or elliptical, convex or polygonal flow cross section, and this can be variable over the length L of the immersion pouring tube.
  • the immersion pouring tube 1 shows in longitudinal section, first in the upper region l 1, a rotationally symmetrical cross section indicated by dash-dotted lines, which transitions into a lower region l 2 with a continuous transition to a flattened cross section.
  • outlet openings 8, 8 ' which maintain the cross-sectional area.
  • individual flow guide bodies 12 and 13 are assigned to these areas l 1 and l 2 , respectively, which hinder the spread of disturbed radially oriented flow forms.
  • the cross-sectional shape of the immersion pouring tube in the area of the sectional plane AA is shown in FIG. 3b. It corresponds approximately to a flat elliptoid E with trapezoidal flow guide bodies 13 with the height h and the width b.
  • Fig. 3 c shows in longitudinal section a by 90 ° with respect to the Fig. 3 a pivoted position of the cross-sectional shape of the immersion and the course of one of walls parallel with flow guide 12 in the upper area l 1 wedge-shaped after the tapered bottom wall portion with Strömungleit stressesn 13 in the section l 2nd
  • additional but continuous lateral flow guide 19 can also within the outlet openings 8, 8 ' can be provided, as shown in FIGS. 4a to 4b.
  • the flow guide can over the entire length L of the immersion tube 1 be guided into the outlet openings 8, 8 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Food-Manufacturing Devices (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP98116587A 1997-09-03 1998-09-02 Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille Expired - Lifetime EP0900609B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19738385A DE19738385C2 (de) 1997-09-03 1997-09-03 Tauchgießrohr zum Einleiten von Schmelze aus einem Gieß- oder Zwischenbehälter in eine Kokille
DE19738385 1997-09-03

Publications (2)

Publication Number Publication Date
EP0900609A1 true EP0900609A1 (fr) 1999-03-10
EP0900609B1 EP0900609B1 (fr) 2002-07-10

Family

ID=7840998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116587A Expired - Lifetime EP0900609B1 (fr) 1997-09-03 1998-09-02 Tube plongeur pour introduire un métal fondu, à partir d'un récipient de coulée ou un récipient intermédiaire, dans une coquille

Country Status (4)

Country Link
EP (1) EP0900609B1 (fr)
AT (1) ATE220357T1 (fr)
DE (2) DE19738385C2 (fr)
ES (1) ES2180104T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080972A1 (fr) * 2015-11-10 2017-05-18 Vesuvius Group, Sa Busette de coulée comprenant des déflecteurs de flux
CN111922328A (zh) * 2020-09-04 2020-11-13 江苏隆达超合金航材有限公司 一种新型的高温合金母合金浇注用浇嘴

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10113026C2 (de) * 2001-03-17 2003-03-27 Thyssenkrupp Stahl Ag Tauchrohr für das Vergießen von Metallschmelze, insbesondere von Stahlschmelze
DE10240491A1 (de) * 2002-09-03 2004-01-15 Refractory Intellectual Property Gmbh & Co.Kg Feuerfestes keramisches Tauchrohr
DE50301315D1 (de) 2003-08-01 2006-02-16 Hof Te Fiennes N V Giesssystem und Verfahren zum Vergiessen von NE-Metallschmelzen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631753C (de) * 1934-03-03 1938-02-25 Heinrich Brinkmann Dipl Ing Bodenausguss mit Leitflaechen an Giesspfannen fuer Metall
DE1201013B (de) * 1961-03-18 1965-09-16 Stoecker & Kunz Ges Mit Beschr Ausguss am Boden einer Giesspfanne fuer fluessige Metalle
DE1235524B (de) * 1965-08-04 1967-03-02 Stoecker & Kunz G M B H Ausguss an Giesspfannen mit Stopfenverschluss
JPS63295056A (ja) * 1987-05-27 1988-12-01 Nkk Corp 溶湯注入ノズル
WO1989012519A1 (fr) * 1988-06-16 1989-12-28 Davy (Distington) Limited Tube d'amenee refractaire
EP0403808A1 (fr) * 1989-06-03 1990-12-27 Sms Schloemann-Siemag Aktiengesellschaft Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444228C2 (de) * 1984-11-30 1986-12-18 Mannesmann AG, 4000 Düsseldorf Verfahren und Vorrichtung zur Erzeugung einer gerichteten Strömung
DE4320723A1 (de) * 1993-06-23 1995-01-05 Didier Werke Ag Eintauchausguß

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631753C (de) * 1934-03-03 1938-02-25 Heinrich Brinkmann Dipl Ing Bodenausguss mit Leitflaechen an Giesspfannen fuer Metall
DE1201013B (de) * 1961-03-18 1965-09-16 Stoecker & Kunz Ges Mit Beschr Ausguss am Boden einer Giesspfanne fuer fluessige Metalle
DE1235524B (de) * 1965-08-04 1967-03-02 Stoecker & Kunz G M B H Ausguss an Giesspfannen mit Stopfenverschluss
JPS63295056A (ja) * 1987-05-27 1988-12-01 Nkk Corp 溶湯注入ノズル
WO1989012519A1 (fr) * 1988-06-16 1989-12-28 Davy (Distington) Limited Tube d'amenee refractaire
EP0403808A1 (fr) * 1989-06-03 1990-12-27 Sms Schloemann-Siemag Aktiengesellschaft Tube plongeur pour l'introduction d'acier liquide dans une lingotière de coulée continue

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 118 (M - 806) 23 March 1989 (1989-03-23) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017080972A1 (fr) * 2015-11-10 2017-05-18 Vesuvius Group, Sa Busette de coulée comprenant des déflecteurs de flux
CN108495727A (zh) * 2015-11-10 2018-09-04 维苏威美国公司 带有导流块的连铸水口
US20180318921A1 (en) * 2015-11-10 2018-11-08 Vesuvius Usa Corporation Casting nozzle comprising flow deflectors
US10500636B2 (en) 2015-11-10 2019-12-10 Vesuvius Usa Corporation Casting nozzle comprising flow deflectors
EP3374108B1 (fr) 2015-11-10 2020-01-08 Vesuvius Group S.A Busette de coulée comprenant des déflecteurs d'écoulement
TWI726000B (zh) * 2015-11-10 2021-05-01 美商維蘇威美國公司 包含導流器的鑄口
CN111922328A (zh) * 2020-09-04 2020-11-13 江苏隆达超合金航材有限公司 一种新型的高温合金母合金浇注用浇嘴

Also Published As

Publication number Publication date
ATE220357T1 (de) 2002-07-15
DE19738385C2 (de) 2000-02-24
DE19738385A1 (de) 1999-03-04
DE59804710D1 (de) 2002-08-14
EP0900609B1 (fr) 2002-07-10
ES2180104T3 (es) 2003-02-01

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