EP0264809A1 - Busette de coulée réfractaire - Google Patents

Busette de coulée réfractaire Download PDF

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Publication number
EP0264809A1
EP0264809A1 EP87115007A EP87115007A EP0264809A1 EP 0264809 A1 EP0264809 A1 EP 0264809A1 EP 87115007 A EP87115007 A EP 87115007A EP 87115007 A EP87115007 A EP 87115007A EP 0264809 A1 EP0264809 A1 EP 0264809A1
Authority
EP
European Patent Office
Prior art keywords
tube
channels
molten metal
tube according
refractory
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.)
Withdrawn
Application number
EP87115007A
Other languages
German (de)
English (en)
Inventor
Thomas Robertson
Kevin John Thompson
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.)
British Steel PLC
Original Assignee
British Steel Corp
British Steel PLC
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 British Steel Corp, British Steel PLC filed Critical British Steel Corp
Publication of EP0264809A1 publication Critical patent/EP0264809A1/fr
Withdrawn legal-status Critical Current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
    • B22D41/507—Pouring-nozzles giving a rotating motion to the issuing molten metal

Definitions

  • This invention relates to refractory tubes, commonly called pouring tubes or submerged entry nozzles, through which molten metal, e.g. steel, is poured into a continuous casting mould from a tundish or other melt-containing vessel.
  • refractory tubes commonly called pouring tubes or submerged entry nozzles
  • the submerged entry nozzles employed are often simple plain vertical tubes but, at least in cases where argon injection is not employed, these suffer from the disadvantage of creating a flow pattern which, whilst quiescent near the mould surface, allow inclusions to be carried deep into the molten metal 'sump' where entrapment is likely with the consequent impairment of strand quality.
  • the present invention provides a refractory tube through which molten metal is poured into a continuous casting mould, the tube having its lower end sealed and a plurality of channels extending laterally through the tube adjacent said end, the channels defining arcuate paths whereby to introduce a swirling motion to the metal issuing therefrom.
  • the flow pattern promoted is tangential to the mould walls.
  • the tube comprises an elongated body section 1 having a high integrity insert 2 at its upper end and a nozzle section 3 at its lower end.
  • This nozzle which in this example is made as a separate part, has a closed bottom but incorporates three channels 4 which extend laterally through the wall of this nozzle and define arcuate paths. This is seen more clearly in Figure 2 which is a section through the nozzle.
  • the nozzle may have an external diameter of 140mm, the channel walls being say 18mm thick, the 'port' or channel height being 35mm and width 15mm.
  • Figures 4 (a) and 4 (b) show the tangential flow pattern produced.
  • the angular velocity of the molten steel within the mould is of the order of 0.70 rads/sec giving a mean velocity at the wall of about 13 cms/sec. This compares favourably with say, 15 to 30 cms/sec obtained with electromagnetic stirring bearing in mind the potential for increasing the tangential velocity with this development by reducing the port apertures.
  • arcuate channels may be provided and they may be at the same or different levels with all or some directed upwardly or downwardly; the shape and dimensions of same may also be modified to secure the most efficient flow patterns.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP87115007A 1986-10-15 1987-10-14 Busette de coulée réfractaire Withdrawn EP0264809A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868624738A GB8624738D0 (en) 1986-10-15 1986-10-15 Refractory pouring tube
GB8624738 1986-10-15

Publications (1)

Publication Number Publication Date
EP0264809A1 true EP0264809A1 (fr) 1988-04-27

Family

ID=10605800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115007A Withdrawn EP0264809A1 (fr) 1986-10-15 1987-10-14 Busette de coulée réfractaire

Country Status (2)

Country Link
EP (1) EP0264809A1 (fr)
GB (2) GB8624738D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473499A1 (fr) * 1990-08-30 1992-03-04 Sollac Tube protecteur de jet d'une installation de coulée continue et procédé en comportant application
EP2769786A1 (fr) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Buse d'entrée submergée
CN106392053A (zh) * 2016-10-28 2017-02-15 马鞍山钢铁股份有限公司 一种炼钢连铸浸入式旋流水口

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2167031C1 (ru) * 2000-11-03 2001-05-20 ОАО "Нижнетагильский металлургический комбинат" Глуходонный погружной стакан
RU2204461C1 (ru) * 2002-08-15 2003-05-20 Открытое акционерное общество Московский опытный завод "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения им. акад. Целикова" Глуходонный погружной стакан
RU2236326C2 (ru) * 2002-11-04 2004-09-20 Хлопонин Виктор Николаевич Способ непрерывной разливки стали из промежуточного ковша в кристаллизатор и погружной стакан для его реализации

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055186B (de) * 1957-03-12 1959-04-16 Ver Deutsche Metallwerke Ag Vorrichtung zum Bewegen der Schmelze im Giesskopf von Stranggiessformen
DE1809934A1 (de) * 1968-11-20 1970-06-04 Demag Ag Giessmetallzufuehrung fuer Metall-,insbesondere Stahlstranggiessanlagen
FR2099705A1 (fr) * 1970-07-31 1972-03-17 Mannesmann Ag
FR2420385A1 (fr) * 1978-03-22 1979-10-19 Fives Cail Babcock Dispositif pour l'introduction d'un metal liquide dans une lingotiere de coulee continue

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794855A (fr) * 1972-02-03 1973-05-29 Voest Ag Tuyau refractaire pour couler des metaux en fusion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055186B (de) * 1957-03-12 1959-04-16 Ver Deutsche Metallwerke Ag Vorrichtung zum Bewegen der Schmelze im Giesskopf von Stranggiessformen
DE1809934A1 (de) * 1968-11-20 1970-06-04 Demag Ag Giessmetallzufuehrung fuer Metall-,insbesondere Stahlstranggiessanlagen
FR2099705A1 (fr) * 1970-07-31 1972-03-17 Mannesmann Ag
FR2420385A1 (fr) * 1978-03-22 1979-10-19 Fives Cail Babcock Dispositif pour l'introduction d'un metal liquide dans une lingotiere de coulee continue

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473499A1 (fr) * 1990-08-30 1992-03-04 Sollac Tube protecteur de jet d'une installation de coulée continue et procédé en comportant application
FR2666257A1 (fr) * 1990-08-30 1992-03-06 Lorraine Laminage Tube protecteur de jet d'une installation de coulee continue et procede en comportant application.
EP2769786A1 (fr) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Buse d'entrée submergée
WO2014127921A3 (fr) * 2013-02-25 2014-12-04 Refractory Intellectual Property Gmbh & Co. Kg Buse à entrée submergée
CN104884192A (zh) * 2013-02-25 2015-09-02 里弗雷克特里知识产权两合公司 浸入式水口
US20150352636A1 (en) * 2013-02-25 2015-12-10 Refractory Intellectual Property Gmbh & Co. Kg Submerged Entry Nozzle
US9757799B2 (en) * 2013-02-25 2017-09-12 Refractory Intellectual Property Gmbh & Co. Kg Submerged entry nozzle
RU2634813C2 (ru) * 2013-02-25 2017-11-03 Рифрэктори Интеллектчуал Проперти Гмбх Унд Ко. Кг Погружной разливочный стакан
CN104884192B (zh) * 2013-02-25 2018-03-27 里弗雷克特里知识产权两合公司 浸入式水口
CN106392053A (zh) * 2016-10-28 2017-02-15 马鞍山钢铁股份有限公司 一种炼钢连铸浸入式旋流水口

Also Published As

Publication number Publication date
GB8624738D0 (en) 1986-11-19
GB2198376A (en) 1988-06-15
GB8724134D0 (en) 1987-11-18

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Effective date: 19881027

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Inventor name: ROBERTSON, THOMAS

Inventor name: THOMPSON, KEVIN JOHN