EP1332813B1 - Feuerfester Ausguss für ein metallurgisches Gefäss - Google Patents

Feuerfester Ausguss für ein metallurgisches Gefäss Download PDF

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Publication number
EP1332813B1
EP1332813B1 EP02027793A EP02027793A EP1332813B1 EP 1332813 B1 EP1332813 B1 EP 1332813B1 EP 02027793 A EP02027793 A EP 02027793A EP 02027793 A EP02027793 A EP 02027793A EP 1332813 B1 EP1332813 B1 EP 1332813B1
Authority
EP
European Patent Office
Prior art keywords
steel
heater
refractory nozzle
thermally insulating
opening
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
EP02027793A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1332813A2 (de
EP1332813A3 (de
Inventor
Martin Kendall
Jean-Paul Verhoeven
Marc Timmermanns
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.)
Heraeus Electro Nite International NV
Original Assignee
Heraeus Electro Nite International NV
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 Heraeus Electro Nite International NV filed Critical Heraeus Electro Nite International NV
Publication of EP1332813A2 publication Critical patent/EP1332813A2/de
Publication of EP1332813A3 publication Critical patent/EP1332813A3/de
Application granted granted Critical
Publication of EP1332813B1 publication Critical patent/EP1332813B1/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
    • 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
    • B22D41/60—Pouring-nozzles with heating or cooling means

Definitions

  • the invention relates to a refractory spout for a metallurgical vessel for molten steel having a top opening and a bottom end having a through hole and a side wall enclosing the passage opening inner wall.
  • Such spouts are widely known in metallurgy ( DE 195 26 970 A1 . DE 196 18 605 A1 . DE 196 51 533 A1 . DE 196 51 534 A1 . EP 379 647 A2 ).
  • a problem with these spouts is that they can be destroyed by the resulting thermal stresses when the hot molten metal comes in, or that metal is deposited on the inner wall of the spouts.
  • the spouts are usually preheated.
  • gas burners or induction heaters are used.
  • it is necessary that the preheating is completed before the melt flows into the spout in order to remove the burner in time from the flow area can. During this interval, however, the spout cools down, so that the problems mentioned can not be completely eliminated.
  • the invention has for its object to improve the known spouts and to make the preheating so that destructions due to thermal stresses or the freezing of molten metal to the inner wall of the spout are largely avoided.
  • the thermally insulating Material is cardboard or a material with a melting point below the melting point of steel. Such a material causes any metal melt which may freeze on it to be rinsed out of the spout after dissolution or melting of the material with the melt flow and does not clog it up.
  • the thermally insulating material is fibrous or formed by spraying.
  • the heater is suitably made of a steel. Also metals with a lower melting point than steel may be suitable. When the spout is used for molten steel, the heater dissolves as it passes through the melt so that it can flow freely through the spout. Any material which initially freezes on the heater is dissolved again and flushed out of the spout.
  • the heating and / or the thermally insulating material is formed by at least two extending in the longitudinal direction of the passage opening, circumferentially juxtaposed parts, since an arrangement formed in this way can be easier to manufacture. It makes sense that the two parts are uniform in order to simplify the production. The parts should touch each other or have mechanical (or electrical) contact with each other.
  • a heater 2 is arranged in the passage opening 1 of the spout.
  • the heater has a two-part (see Fig. 2) meandering structure. He is hung in the spout by means of retaining elements 3. These holding elements 3 rest on the upper edge of the spout.
  • the heater 2 is made of steel. The preheating phase can be extended by its arrangement in time until the molten metal passes through the spout. When using the spout for molten steel, the heater 2 can be and is flushed out of the spout.
  • the heater 2 has electrical contacts 4, of which only one is shown in the drawing for the sake of simplicity.
  • the second contact is usefully arranged at the corresponding end of the second part of the heater 2.
  • the division of the heater 2 can be seen in Fig. 2.
  • the two parts of the heater 2 are mechanically and electrically connected to each other at the contact point 5.
  • the inner wall 6 of the spout is formed of zirconia.
  • On its outer surface electrodes 7 are arranged, wherein between the electrodes 7 and the inner wall 6 of the spout a layer 8 of chromium dioxide powder is arranged, by means of which the contact between the electrodes 7 and the inner wall 6 is made.
  • the electrodes 7 are guided as electrical contacts 9 to the outside.
  • the spout has an outer housing 10 made of steel, which is bounded at its upper end by a sintered ring 11 made of ceramic material.
  • This insulating material 12 and the sintered ring 11 are formed of zirconia-mullite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP02027793A 2002-02-01 2002-12-12 Feuerfester Ausguss für ein metallurgisches Gefäss Expired - Lifetime EP1332813B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10204305 2002-02-01
DE10204305A DE10204305B4 (de) 2002-02-01 2002-02-01 Feuerfester Ausguss für ein metallurgisches Gefäß

Publications (3)

Publication Number Publication Date
EP1332813A2 EP1332813A2 (de) 2003-08-06
EP1332813A3 EP1332813A3 (de) 2003-11-26
EP1332813B1 true EP1332813B1 (de) 2008-01-30

Family

ID=7713610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027793A Expired - Lifetime EP1332813B1 (de) 2002-02-01 2002-12-12 Feuerfester Ausguss für ein metallurgisches Gefäss

Country Status (10)

Country Link
US (1) US6832707B2 (zh)
EP (1) EP1332813B1 (zh)
JP (1) JP4316897B2 (zh)
KR (1) KR100870162B1 (zh)
CN (1) CN1286601C (zh)
AT (1) ATE385208T1 (zh)
BR (1) BR0300169B1 (zh)
CA (1) CA2413492C (zh)
DE (2) DE10204305B4 (zh)
ES (1) ES2296871T3 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034426B3 (de) * 2007-07-20 2008-12-04 HAGENBURGER Feuerfeste Produkte für Gießereien und Stahlwerke KG Von einer Metallschmelze durchströmbares Bauteil eines Gießsystems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275452A3 (de) * 2001-07-13 2003-12-10 Heraeus Electro-Nite International N.V. Feuerfester Ausguss
US10232435B2 (en) * 2014-05-05 2019-03-19 Refractory Intellectual Property Gmbh & Co. Kg Refractory ceramic casting nozzle
KR101951805B1 (ko) * 2017-05-12 2019-02-25 손인철 용탕배출 장치

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435992A (en) * 1966-03-11 1969-04-01 Tisdale Co Inc Pouring nozzle for continuous casting liquid metal or ordinary steel
BE830039A (fr) * 1975-06-09 1975-10-01 Perfectionnements aux busettes de coulee
JPS546816A (en) * 1977-06-20 1979-01-19 Kobe Steel Ltd Prevention of pouriggnozzle blockade
DE3903210C1 (zh) * 1989-01-31 1990-06-28 Mannesmann Ag, 4000 Duesseldorf, De
US4946082A (en) * 1989-07-10 1990-08-07 General Electric Company Transfer tube with in situ heater
JPH05337635A (ja) * 1992-06-05 1993-12-21 Aichi Steel Works Ltd 金属溶湯保持容器
JPH05337645A (ja) * 1992-06-08 1993-12-21 Ishikawajima Harima Heavy Ind Co Ltd 溶接アークオシレート方法
DE19526970C2 (de) * 1995-07-25 2000-11-16 Didier Werke Ag Verfahren zum induktiven Aufheizen eines feuerfesten Formteils
US5902509A (en) * 1995-07-25 1999-05-11 Dider-Werke Ag Method and apparatus for inductively heating a refractory shaped member
DE19603317A1 (de) * 1995-08-28 1997-03-06 Didier Werke Ag Verfahren zum Betreiben eines Induktors und Induktor zur Durchführung des Verfahrens
DE19603607A1 (de) * 1995-10-05 1997-04-10 Didier Werke Ag Mehrbereichsinduktoreinrichtung
DE10132575C1 (de) * 2001-07-10 2002-07-04 Heraeus Electro Nite Int Feuerfester Ausguss
DE10160070A1 (de) * 2001-12-06 2003-06-18 Sms Demag Ag Ausguss für Metallschmelzen, insbesondere für Stahlschmelzen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034426B3 (de) * 2007-07-20 2008-12-04 HAGENBURGER Feuerfeste Produkte für Gießereien und Stahlwerke KG Von einer Metallschmelze durchströmbares Bauteil eines Gießsystems

Also Published As

Publication number Publication date
EP1332813A2 (de) 2003-08-06
CN1286601C (zh) 2006-11-29
DE10204305B4 (de) 2004-04-29
KR20030066342A (ko) 2003-08-09
BR0300169B1 (pt) 2011-11-16
US20030146553A1 (en) 2003-08-07
US6832707B2 (en) 2004-12-21
EP1332813A3 (de) 2003-11-26
CA2413492C (en) 2009-09-29
DE10204305A1 (de) 2003-08-21
ATE385208T1 (de) 2008-02-15
CN1435288A (zh) 2003-08-13
KR100870162B1 (ko) 2008-11-25
ES2296871T3 (es) 2008-05-01
BR0300169A (pt) 2003-09-09
DE50211632D1 (de) 2008-03-20
JP2003245772A (ja) 2003-09-02
JP4316897B2 (ja) 2009-08-19
CA2413492A1 (en) 2003-08-01

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