EP0351414B1 - Tauchausguss für metallurgische gefässe - Google Patents

Tauchausguss für metallurgische gefässe Download PDF

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Publication number
EP0351414B1
EP0351414B1 EP88902787A EP88902787A EP0351414B1 EP 0351414 B1 EP0351414 B1 EP 0351414B1 EP 88902787 A EP88902787 A EP 88902787A EP 88902787 A EP88902787 A EP 88902787A EP 0351414 B1 EP0351414 B1 EP 0351414B1
Authority
EP
European Patent Office
Prior art keywords
immersion nozzle
section
long section
pct
nozzle 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.)
Expired - Lifetime
Application number
EP88902787A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0351414A1 (de
Inventor
Hans Butz
Gerd Diederich
Hans-Jürgen Ehrenberg
Dietmar Lohse
Lothar Parschat
Fritz-Peter Pleschiutschnigg
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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=6323590&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0351414(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT88902787T priority Critical patent/ATE69002T1/de
Publication of EP0351414A1 publication Critical patent/EP0351414A1/de
Application granted granted Critical
Publication of EP0351414B1 publication Critical patent/EP0351414B1/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
    • B22D11/10—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
    • 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
    • B22D41/58—Pouring-nozzles with gas injecting means

Definitions

  • the invention relates to an immersion nozzle for metallurgical vessels, in particular for a storage container arranged upstream of a continuous casting mold, according to the preamble of claim 1.
  • the basic body of such a pouring tube consists of alumina-graphite materials with high wear resistance against liquid steel and protection of the graphite component against burnout and solution in the steel.
  • pouring tubes in the embodiment as immersion spouts for so-called slab cross sections i.e. e.g. Cross sections of 300 mm x 2600 mm require a suitable geometric design with regard to their casting performance.
  • the internal cross section is made so large that the required casting performance is maintained that alumina deposits do not lead to restrictions in the casting speed.
  • mold cross sections become smaller, e.g. 50 mm mold width, the dimensions and therefore the flow cross-sections of an immersion nozzle must be reduced.
  • the object of the invention is therefore to design the immersion nozzle mentioned at the outset in such a way that a favorable flow distribution in the mold can be achieved with high casting performance when continuously casting flat slabs with a large width.
  • Another advantage is the interaction with a smooth-walled continuous casting mold, the manufacturing costs of which are correspondingly low.
  • a favorable flow distribution is also achieved in that the upper longitudinal section is round in cross section and the lower longitudinal section is rectangular in cross section, a conical transition being provided between the two longitudinal sections.
  • At least the wall thickness of the lower length section is a maximum of 10 mm.
  • the lower length section is at least partially made of a refractory, thermal shock-resistant and resistant to powder slag Werkstott exists, zirconium oxide being the main constituent and graphite and / or silicon carbide and / or boron nitride and / or refractory metals and / or refractory metal bonds being provided as additives.
  • the upper longitudinal section and the lower longitudinal section can be produced by means of divisible core segments.
  • the flow opening is correspondingly narrow and can be up to 10 mm and less.
  • a flow-oriented cavity is advantageously produced by means of assembled core segments.
  • the steel core should have an axially removable central core and side cores that can be pulled out through the mouth openings as well as secondary cores that can be moved into the center and then also axially pulled out from there.
  • the refractory mass is pressed isostatically around the steel core in such a way that the forces occurring during the pressing are always supported on the central core.
  • the pouring pipe 2 which is also referred to below as immersion spout 2a, is fastened to a perforated brick 1 of a storage container.
  • the type of fastening or the fastening means depend on whether a plug closure 3 or a slide closure (not shown) is used.
  • an inlet pipe 4 is embedded for the plug closure 3 in the perforated brick 1, which penetrates the sheet metal jacket 5 and is spherically shaped at its lower end 4a.
  • a first holding plate 7 is inserted laterally in a groove 6.
  • a second holding plate 8 engages, which presses the pouring pipe 2 or the flange 2b against the spherically shaped end 4a of the inlet pipe 4 by means of threaded screws 9 provided in pairs.
  • a sealing seat 10 is created by the concave inner shape 2c adapted to the spherical shape of the inlet pipe end 4a.
  • FIG. 1 forms a first longitudinal sectional plane in which the upper longitudinal section 12, apart from a conical transition 14, is narrow in the region 15 and the lower one Longitudinal section 13 has a much wider area 16 than the narrow area 15.
  • the difference in widths between areas 15 and 16 results from the length / width ratio of 20: 1 to 80: 1 in the mouth area 17 compared to the flow cross section 18 of the inlet pipe 4.
  • the lateral mouth openings 19 and 20 together have a flow cross section that is not quite as large as the flow cross-section at the stopper closure 3.
  • the orifices 19 and 20 can of course be even smaller, since the stopper closure 3 exerts a corresponding control over the liquid metal portion flowing through per unit of time.
  • the plug seat on the plug closure 3 can be approximately 4400 mm 2, the inner diameter 21 of the area 15, for example, 95 mm diameter.
  • the orifices 19 and 20 have a flow cross section of approximately 2600 mm 2.
  • the values given relate to a continuous casting mold 22 (FIG. 2) with a casting oil of 50 mm ⁇ 1600 mm.
  • the conical transition 14 is made, similar to the mouth region 17, from a material which is resistant to thermal shock and is resistant to flowing steel, as described above, while the region 16 in which the mold level 23 is located is produced from a work tunnel which is resistant to the slag 24, which by the different hatching directions should be highlighted in the drawing.
  • the wall thickness 25 on the left and right of the flow cross section 26 is approximately 10 mm for a 50 mm wide pouring opening 27 of the continuous casting mold 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP88902787A 1987-03-20 1988-03-16 Tauchausguss für metallurgische gefässe Expired - Lifetime EP0351414B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88902787T ATE69002T1 (de) 1987-03-20 1988-03-16 Tauchausguss fuer metallurgische gefaesse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3709188 1987-03-20
DE19873709188 DE3709188A1 (de) 1987-03-20 1987-03-20 Ausgiessrohr fuer metallurgische gefaesse

Publications (2)

Publication Number Publication Date
EP0351414A1 EP0351414A1 (de) 1990-01-24
EP0351414B1 true EP0351414B1 (de) 1991-10-30

Family

ID=6323590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88902787A Expired - Lifetime EP0351414B1 (de) 1987-03-20 1988-03-16 Tauchausguss für metallurgische gefässe

Country Status (9)

Country Link
US (1) US5314099A (enrdf_load_stackoverflow)
EP (1) EP0351414B1 (enrdf_load_stackoverflow)
JP (1) JP2646022B2 (enrdf_load_stackoverflow)
KR (1) KR960015336B1 (enrdf_load_stackoverflow)
AT (1) ATE69002T1 (enrdf_load_stackoverflow)
CA (1) CA1318105C (enrdf_load_stackoverflow)
DE (2) DE3709188A1 (enrdf_load_stackoverflow)
WO (1) WO1988006932A1 (enrdf_load_stackoverflow)
ZA (1) ZA881887B (enrdf_load_stackoverflow)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918228C2 (de) * 1989-06-03 1996-11-07 Schloemann Siemag Ag Tauchgießrohr zum Einleiten von Stahlschmelze in eine Stranggießkokille
DE4032624A1 (de) * 1990-10-15 1992-04-16 Schloemann Siemag Ag Tauchgiessrohr zum einleiten von stahlschmelze in eine stranggiesskokille
JPH04300050A (ja) * 1991-03-28 1992-10-23 Nippon Steel Corp 双ロール式薄板鋳造方法
DE4116723C2 (de) * 1991-05-17 1999-01-21 Mannesmann Ag Tauchausguß
DE4142447C3 (de) * 1991-06-21 1999-09-09 Mannesmann Ag Tauchgießrohr - Dünnbramme
KR100221695B1 (ko) * 1991-08-12 1999-09-15 그린 마틴, 브라이언 쥐 테슬리 약학적 구상 제형
JPH07503905A (ja) * 1992-02-20 1995-04-27 ブリティッシュ、スティール、リミテッド 溶融金属を注入するための方法および装置
DE4300505C2 (de) * 1993-01-06 1995-08-24 Mannesmann Ag Tauchgießrohr für metallurgische Gefäße
DE4320723A1 (de) * 1993-06-23 1995-01-05 Didier Werke Ag Eintauchausguß
DE4403049C1 (de) * 1994-01-28 1995-09-07 Mannesmann Ag Stranggießanlage und Verfahren zur Erzeugung von Dünnbrammen
DE4403048C1 (de) * 1994-01-28 1995-07-13 Mannesmann Ag Stranggießanlage und Verfahren zur Erzeugung von Rechteck-Dünnbrammen
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
DE19512208C1 (de) * 1995-03-21 1996-07-18 Mannesmann Ag Tauchausguß zum Gießen von Metall
FR2741555B1 (fr) * 1995-11-23 1997-12-26 Usinor Sacilor Busette pour l'introduction d'un metal liquide dans une lingotiere de coulee continue de produits metalliques, et installation de coulee continue de produits metalliques equipees d'une telle busette
JP3096635B2 (ja) * 1996-03-29 2000-10-10 住友金属工業株式会社 偏平状の連続鋳造用ノズル
DE19623787C2 (de) * 1996-06-04 1998-07-02 Mannesmann Ag Verfahren und Vorrichtung zum Ausgießen von Stahl aus einem Tauchausguß
AU727845B2 (en) * 1996-07-29 2001-01-04 Mannesmann Aktiengesellschaft Immersion nozzle for pouring molten metal (joint point)
UA51734C2 (uk) * 1996-10-03 2002-12-16 Візувіус Крусібл Компані Занурений стакан для пропускання рідкого металу і спосіб пропускання рідкого металу через нього
DE19722890A1 (de) * 1997-05-28 1998-12-03 Mannesmann Ag Tauchausguß
JP2001300699A (ja) * 2000-04-25 2001-10-30 Toshiba Ceramics Co Ltd 扁平型浸漬ノズル
AT408962B (de) * 2000-05-31 2002-04-25 Voest Alpine Ind Anlagen Verfahren zum herstellen eines stranggegossenen vorproduktes
DE10051957A1 (de) * 2000-10-20 2002-05-02 Sms Demag Ag Vorrichtung zum Führen der Strömung einer metallurgischen Schmelze, insbesondere einer Stahlschmelze
JP4079415B2 (ja) * 2002-04-26 2008-04-23 黒崎播磨株式会社 薄スラブ連続鋳造用浸漬ノズル
CH704928B1 (de) * 2011-05-06 2023-10-13 Stopinc Ag Vorrichtung zum Befestigen eines Lochsteins sowie Lochstein.
DE102013002897A1 (de) 2013-02-20 2014-08-21 Techcom Gmbh Tauchrohr zur Herstellung von metallischen Stranggussteilen
CN111644608B (zh) * 2019-11-22 2022-01-18 首钢京唐钢铁联合有限责任公司 一种中间包上水口结构及其安装方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887990C (de) * 1951-05-07 1953-08-27 Irving Rossi Wassergekuehlte Stranggiessform
DE1959097C2 (de) * 1969-11-20 1973-10-04 Mannesmann Ag, 4000 Duesseldorf Vorrichtung beim Stranggießen zum Ver teilen eiern Stahlschmelze
DE2105881B2 (de) 1971-02-01 1974-04-04 Mannesmann Ag, 4000 Duesseldorf Vorrichtung und Verfahren zum Einleiten einer Schmelze in eine Stranggießkokille
JPS537893B2 (enrdf_load_stackoverflow) * 1972-08-22 1978-03-23
SE7409971L (enrdf_load_stackoverflow) * 1973-09-11 1975-03-12 Voest Ag
AT332579B (de) * 1974-06-25 1976-10-11 Voest Ag Giessrohr mit einer bodenoffnung zum kontinuierlichen stahlstranggiessen
DE2442187A1 (de) * 1974-09-02 1976-03-11 Mannesmann Ag Tauchausguss zur verwendung in stranggiessanlagen
JPS537893A (en) * 1976-07-12 1978-01-24 Fuji Electric Co Ltd Apparatus for switching automatically and manually
JPS591229B2 (ja) * 1978-04-26 1984-01-11 明知耐火煉瓦株式会社 溶鋼の連続鋳造用浸漬ノズル
US4220618A (en) * 1978-07-26 1980-09-02 M & T Manufacturing Company Method of making a mold with a core supporting bushing
FR2525937A1 (fr) * 1982-05-03 1983-11-04 Fives Cail Babcock Dispositif d'introduction d'un metal liquide dans une lingotiere de coulee continue de brames
JPS591229A (ja) * 1982-06-28 1984-01-06 Matsushita Electric Ind Co Ltd パツキング材の成形装置
JPS6012264A (ja) * 1983-07-04 1985-01-22 Nippon Steel Corp 薄肉鋳片高速連続鋳造用浸漬ノズル
DE3528649A1 (de) * 1985-08-09 1987-02-19 Schloemann Siemag Ag Vertikal- oder bogenstranggiessanlage fuer stahl
DE3640525C2 (de) * 1986-11-27 1996-02-15 Schloemann Siemag Ag Kokille zum Stranggießen von Stahlband
JPH0767602B2 (ja) * 1987-06-01 1995-07-26 日本鋼管株式会社 連続鋳造浸漬ノズル
DE3721266A1 (de) * 1987-06-27 1989-01-12 Schloemann Siemag Ag Verstellbare stranggiesskokille zur erzeugung von vorprofilen fuer die traegerwalzung
US4904626A (en) * 1989-01-24 1990-02-27 Union Carbide Corporation Zirconia mullite/boron nitride composites

Also Published As

Publication number Publication date
KR890700413A (ko) 1989-04-24
DE3709188C2 (enrdf_load_stackoverflow) 1990-07-26
KR960015336B1 (ko) 1996-11-09
EP0351414A1 (de) 1990-01-24
US5314099A (en) 1994-05-24
WO1988006932A1 (en) 1988-09-22
JP2646022B2 (ja) 1997-08-25
CA1318105C (en) 1993-05-25
DE3709188A1 (de) 1988-09-29
ZA881887B (en) 1989-03-29
ATE69002T1 (de) 1991-11-15
JPH02502706A (ja) 1990-08-30
DE3865964D1 (de) 1991-12-05

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