EP0847821A1 - Beschickbehälter für die Aufnahme schmelzflüssigen Metalls, insbesondere Stahlschmelzen - Google Patents

Beschickbehälter für die Aufnahme schmelzflüssigen Metalls, insbesondere Stahlschmelzen Download PDF

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Publication number
EP0847821A1
EP0847821A1 EP97402668A EP97402668A EP0847821A1 EP 0847821 A1 EP0847821 A1 EP 0847821A1 EP 97402668 A EP97402668 A EP 97402668A EP 97402668 A EP97402668 A EP 97402668A EP 0847821 A1 EP0847821 A1 EP 0847821A1
Authority
EP
European Patent Office
Prior art keywords
tank
refractory
cavity
molten metal
jet
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Withdrawn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
EP97402668A
Other languages
English (en)
French (fr)
Inventor
Hervé Tavernier
Etienne Havette
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.)
Ugine SA
Ugitech SA
Original Assignee
Ugine Savoie SA
USINOR Sacilor SA
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 Ugine Savoie SA, USINOR Sacilor SA filed Critical Ugine Savoie SA
Publication of EP0847821A1 publication Critical patent/EP0847821A1/de
Withdrawn legal-status Critical Current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
    • B22D41/003—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with impact pads
    • 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
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • 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 supply tank for retaining a molten metal and in particular a steel, tank comprising a bottom refractory, refractory partitions, at least one formed nozzle in the refractory bottom to evacuate the molten metal from the tank, a refractory pad comprising a cavity, placed on the bottom of the tank and intended to receive a jet of molten metal from a pocket moved above said tank.
  • the supply tank constitutes the transfer reactor between the ladle and the casting mold.
  • the improvement in the operation of the supply tank is achieved by the use of cladding such as for example, an impact slab placed at the bottom of the tank, directly above a jet protective tube located under the ladle.
  • This impact slab is also called "buffer”.
  • the primary function of the tampon is generally to reduce the turbulence of the liquid metal jet coming from the ladle and entering in the tank, by the degradation of the energy of the liquid metal jet falling vertically onto said impact slab.
  • the buffer can limit short circuits, this is to say the durations at the end of which the first fluid stream of steel leaves the tank and / or increase the residence times, i.e. the durations of presence of fluid steel nets in the tank.
  • the object of the invention is to provide a specific degradation zone energy of the incoming liquid metal jet and simultaneously ensure a refractory reserve in the buffer in order to compensate for its wear under the violent impact of the flow of liquid metal entering the tank.
  • the object of the invention is a supply tank intended for retain a molten metal and in particular a steel, tank comprising a refractory pad comprising a cavity, the pad placed on the bottom of the tank and intended to receive a jet of molten metal from a pocket moved above said tank, characterized in that that the tampon cavity is formed of a tampon bottom and a wall substantially vertical, the surface of the buffer base defining a convex volume.
  • Figure 1 is a diagram showing a sequence of downstream production of steel.
  • Figure 2 is a sectional representation of an example of production of a refractory pad according to the invention.
  • Figure 3 is a sectional representation of another example for producing a refractory pad according to the invention.
  • Figure 4 is a sectional representation of another example for producing a refractory pad according to the invention.
  • Figure 5 is a sectional representation of another example for producing a refractory pad according to the invention.
  • a ladle 1 for casting supplies a reservoir supply 2, also called distributor or distributor, the supply tank 2 discharging the liquid metal 3 into a ingot mold 4 for continuous casting.
  • the metal supply tank 2 includes a bottom refractory 5, refractory partitions 6 intended to retain the metal melted in the feed tank 2, at least one nozzle 7 formed in the refractory bottom 5 which evacuates by flow, the metal molten tank 2.
  • a refractory pad 8 comprising a cavity 9, is placed on the bottom of the tank 2. It is intended to receive a jet 10 of molten metal from the pocket 1 moved above the tank 2.
  • the cavity 9 of the pad 8 is formed by a pad bottom 11 and a wall 12 substantially vertical.
  • the surface of the buffer base 11 defines a convex volume, that is to say that any segment that joins any two points on the surface delimiting the volume is contained in this volume.
  • the buffer base 11 in its convex shape, generates, with the wall 12 substantially vertical lateral of the cavity 9, an angle of strong degradation of the energy of the jet of liquid steel entering the cavity 9 of buffer 8.
  • the acute angle generated by the shape of the buffer base 11 and the wall 12 substantially vertical of the cavity 9 is a degradation zone energy of the incoming liquid metal jet and promotes its ascent along from said wall 12 to the metal surface and the slag layer contained in the supply tank, the metal escaping from the buffer essentially by the upper opening thereof.
  • the wall 12 has a function of blocking the metal which, associated with the closing effect of the buffer base 11, calms efficiently the energy of the jet.
  • the energy attenuation effect is shown in the figures by a spiral arrow.
  • Another advantage of the invention is linked to the fact that the bottom constitutes a relatively large reserve of refractory, a reserve which alleviates wear following the violent impact of the jet of molten steel entering, especially when opening pocket 1.
  • the pad 8 is a refractory concrete piece, which can be monobloc, fixed on the bottom 5 of the tank and placed directly above the tube for protecting the jet 10 from the ladle 1.
  • the stamp can have any geometric shape. He's from preferably parallelepiped or cylindrical.
  • the stamp is made of preferably by molding.
  • the substantially vertical walls include a skin which ensures easy release of the tampon.
  • the wall 12 is relatively high compared to the dimensions of the melts to allow the accumulation of metal from the pocket, the degradation of its energy, and the rise of said metal along from wall 12 to the slag.
  • the wall 12 prevents metal nets liquids go directly towards the tap holes. In addition, the wall makes it possible to extend the residence time of the metal in the tank feed.
  • the bottom 11 of the cavity 9a of preferably, when the buffer is rectangular, the shape of a pyramid, associated with four substantially flat side walls and vertical.
  • the buffer generates between the bottom and the walls, four zones of strong energy degradation of the liquid steel jet entering.
  • the bottom 11 of the cavity 9 preferably has when the pad is cylindrical, the shape of a cone, associated with a side wall substantially cylindrical and vertical.
  • the stamp generates between the bottom and the wall, a strong crown of degradation energy of the incoming liquid steel jet.
  • the bottom surface defines a vertex which can be placed either in the vertical axis of the jet, or slightly moved relative to the axis of the jet. Moving the tampon can generate a rotary movement of the steel flow, the rotary movement participating in the degradation of the energy of the incoming steel jet.
  • the bottom surface defines a vertex whose height remains much less than the height of wall 12.
  • the pad 8 comprises, drilled in the wall 12, at least one hole drain 16 ensuring on the one hand, a flow of steel in the bottom 5 of the tank, in particular, before the filling steel overflows the tampon, and on the other hand, emptying of the cavity 9 of said tampon in end of casting.
  • the internal wall 12 of the cavity 9 comprises at least one peripheral bead 13 located in a substantially horizontal plane and closing all or part of the cavity.
  • the bead 13 can be arranged on the surface of wall 12 at a any height relative to the buffer base 11, for example at mid height of the wall 12, thus separating the cavity into two parts.
  • the space of the cavity locally reduced, for example, at the outlet of the cavity brings back, after the impact of the jet, the steel flow towards the axis of the jet steel which accentuates the energy degradation effect.
  • the peripheral bead 13 comprises at least one part folded back 14 towards the buffer base 11.
  • the flow is folded down towards the bottom of the cavity to accentuate the degradation of energy.
  • the internal wall of the cavity comprises a series of peripheral beads 15 located in a substantially horizontal plane, defining a corrugated inner wall. Ripples reduce, with the inclination of the convex bottom, the sharp degradation angle of the energy of the liquid steel flow as well when the metal builds up in the bottom of the pad only when it rises on the wall, after the impact of the molten steel jet on the bottom 11.
  • said beads can be produced in the form of independent pieces, as for example crowns fitting on the wall 12. Indeed molding into a block of parts comprising a closed space generating for example undercuts is difficult to achieve.
  • the proposed reservoir provided with the buffer according to the invention optimizes the reduction of the turbulence of the liquid steel in the impact zone of the reservoir through the creation of areas of high energy degradation. he also optimizes short circuit times and residence times, which which improves the cleanliness of the steel produced.
  • the tampon according to the invention promotes flow. piston and reduces the transition time, i.e. the time required to switch from casting a shade A to casting a shade B, or again, the time during which the tank contains the end of the pouring of grade A and the start of casting of grade B.
  • Such a pad easy to make, can be inserted alone in the tank, which eliminates the use of skins annexes such as dams, weirs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP97402668A 1996-12-11 1997-11-07 Beschickbehälter für die Aufnahme schmelzflüssigen Metalls, insbesondere Stahlschmelzen Withdrawn EP0847821A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9615194A FR2756762B1 (fr) 1996-12-11 1996-12-11 Reservoir d'alimentation destine a retenir un metal fondu et notamment un acier
FR9615194 1996-12-11

Publications (1)

Publication Number Publication Date
EP0847821A1 true EP0847821A1 (de) 1998-06-17

Family

ID=9498535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402668A Withdrawn EP0847821A1 (de) 1996-12-11 1997-11-07 Beschickbehälter für die Aufnahme schmelzflüssigen Metalls, insbesondere Stahlschmelzen

Country Status (11)

Country Link
EP (1) EP0847821A1 (de)
JP (1) JPH10175046A (de)
KR (1) KR19980064013A (de)
CN (1) CN1067610C (de)
AU (1) AU4541197A (de)
BR (1) BR9705611A (de)
CA (1) CA2217434A1 (de)
FR (1) FR2756762B1 (de)
ID (1) ID18867A (de)
TW (1) TW429179B (de)
ZA (1) ZA9710810B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000074879A1 (en) * 1999-06-08 2000-12-14 Foseco International Limited Impact pad for a tundish
EP1232814A1 (de) * 2001-02-14 2002-08-21 Refractaria, S.A. Prallplatte zum Stranggiessen
WO2002094480A1 (en) * 2001-05-22 2002-11-28 Vesuvius Crucible Company Impact pad for dividing and distributing liquid metal flow
EP1591177A1 (de) * 1999-08-05 2005-11-02 Pyrotek Engineering Materials Limited Verteiler
EP2769785A1 (de) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Refraktärer Aufpralldämpfer
CZ305325B6 (cs) * 2001-05-22 2015-08-05 Vesuvius Crucible Company Nárazová vložka mezipánve pro kontinuální lití
US20150273579A1 (en) * 2014-03-28 2015-10-01 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
CN107073574A (zh) * 2014-08-15 2017-08-18 安赛乐米塔尔研究与发展有限责任公司 冲击垫、包括冲击垫的浇注盘和设备、及其使用方法
WO2018031549A1 (en) * 2016-08-08 2018-02-15 Vesuvius Crucible Company Impact pad
CN114288921A (zh) * 2022-01-11 2022-04-08 北京科技大学 一种高温合金铸造用搅拌装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000040975A (ko) * 1998-12-21 2000-07-15 이구택 연속주조기의 턴디쉬 용강유동 제어장치
KR100949681B1 (ko) 2002-12-23 2010-03-30 주식회사 포스코 턴디쉬용 완충패드
KR101340569B1 (ko) * 2012-02-27 2013-12-11 (주)에스엔엔씨 스프레이 헤드 및 이를 이용한 샷 메이킹 주조탱크
EP3338913B1 (de) * 2015-08-17 2020-10-28 Nippon Steel Corporation Ringförmiges wehr
CA3046587A1 (en) 2016-12-16 2018-06-21 Nippon Steel Corporation Electric furnace
EP3557171A4 (de) 2016-12-16 2020-05-06 Nippon Steel Corporation Elektrischer ofen
CN112122602A (zh) * 2020-06-13 2020-12-25 泰州市旺鑫耐火材料有限公司 一种长寿命中间包稳流器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126922A (en) * 1964-07-01 1968-09-11 Henri Jean Daussan Improvements in or relating to a method and a device intended for the improvement of the contexture of cast metals
DE2224482A1 (de) * 1972-05-19 1973-12-06 Kloeckner Werke Ag Vorrichtung zum abgiessen aluminiumberuhigter staehle im strang
EP0184634A1 (de) * 1984-11-28 1986-06-18 Lichtenberg Feuerfest Gmbh Pfanne zum Aufnehmen und ggf. Nachbehandeln und/oder Transportieren von heissen, flüssigen Metallen
EP0186852A2 (de) * 1984-12-18 1986-07-09 Nippon Steel Corporation Zwischengefäss für das Stranggiessen von Automatenstahl
US4715586A (en) * 1987-02-18 1987-12-29 Bethlehem Steel Corporation Continuous caster tundish having wall dams
US4776570A (en) * 1987-07-08 1988-10-11 Sidbec Dosco Inc. Ladle stream breaker
EP0463257A1 (de) * 1990-05-29 1992-01-02 Magneco/Metrel, Inc. Prallplatte für Zwischengefäss

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126922A (en) * 1964-07-01 1968-09-11 Henri Jean Daussan Improvements in or relating to a method and a device intended for the improvement of the contexture of cast metals
DE2224482A1 (de) * 1972-05-19 1973-12-06 Kloeckner Werke Ag Vorrichtung zum abgiessen aluminiumberuhigter staehle im strang
EP0184634A1 (de) * 1984-11-28 1986-06-18 Lichtenberg Feuerfest Gmbh Pfanne zum Aufnehmen und ggf. Nachbehandeln und/oder Transportieren von heissen, flüssigen Metallen
EP0186852A2 (de) * 1984-12-18 1986-07-09 Nippon Steel Corporation Zwischengefäss für das Stranggiessen von Automatenstahl
US4715586A (en) * 1987-02-18 1987-12-29 Bethlehem Steel Corporation Continuous caster tundish having wall dams
US4776570A (en) * 1987-07-08 1988-10-11 Sidbec Dosco Inc. Ladle stream breaker
EP0463257A1 (de) * 1990-05-29 1992-01-02 Magneco/Metrel, Inc. Prallplatte für Zwischengefäss

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ299614B6 (cs) * 1999-06-08 2008-09-24 Foseco International Limited Nárazová podložka pro mezipánev, a mezipánev
WO2000074879A1 (en) * 1999-06-08 2000-12-14 Foseco International Limited Impact pad for a tundish
US7131482B2 (en) 1999-08-05 2006-11-07 Pyrotek Engineering Materials Limited Distributor device for use in metal casting
EP1591177A1 (de) * 1999-08-05 2005-11-02 Pyrotek Engineering Materials Limited Verteiler
EP1232814A1 (de) * 2001-02-14 2002-08-21 Refractaria, S.A. Prallplatte zum Stranggiessen
US7004227B2 (en) 2001-05-22 2006-02-28 Vesuvius Crucible Company Impact pad for dividing and distributing liquid metal flow
AU2002310036B2 (en) * 2001-05-22 2006-08-10 Vesuvius Usa Corporation Impact pad for dividing and distributing liquid metal flow
KR100858684B1 (ko) * 2001-05-22 2008-09-17 비수비우스 크루서블 컴패니 용금류의 분할 및 분포를 위한 충돌 패드
WO2002094480A1 (en) * 2001-05-22 2002-11-28 Vesuvius Crucible Company Impact pad for dividing and distributing liquid metal flow
CZ305325B6 (cs) * 2001-05-22 2015-08-05 Vesuvius Crucible Company Nárazová vložka mezipánve pro kontinuální lití
US9815112B2 (en) 2013-02-25 2017-11-14 Refractory Intellectual Property Gmbh & Co. Kg Refractory impact pad
EP2769785A1 (de) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Refraktärer Aufpralldämpfer
WO2014128013A1 (en) * 2013-02-25 2014-08-28 Refractory Intellectual Property Gmbh & Co. Kg Refractory impact pad
EA028440B1 (ru) * 2013-02-25 2017-11-30 Рифрэктори Интеллектчуал Проперти Гмбх Унд Ко. Кг Футеровочный отбойный предохранительный стакан
AU2014220873B2 (en) * 2013-02-25 2016-01-21 Refractory Intellectual Property Gmbh & Co. Kg Refractory impact pad
US9308581B2 (en) * 2014-03-28 2016-04-12 ArceloMittal Investigacion y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
US9643248B2 (en) 2014-03-28 2017-05-09 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
US20150273579A1 (en) * 2014-03-28 2015-10-01 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
CN107073574A (zh) * 2014-08-15 2017-08-18 安赛乐米塔尔研究与发展有限责任公司 冲击垫、包括冲击垫的浇注盘和设备、及其使用方法
CN107073574B (zh) * 2014-08-15 2020-06-26 安赛乐米塔尔研究与发展有限责任公司 冲击垫、包括冲击垫的浇注盘和设备、及其使用方法
WO2018031549A1 (en) * 2016-08-08 2018-02-15 Vesuvius Crucible Company Impact pad
US20190275584A1 (en) * 2016-08-08 2019-09-12 Vesuvius Usa Corporation Impact pad
EP3496882A4 (de) * 2016-08-08 2020-04-01 Vesuvius USA Corporation Prallplatte
US10882107B2 (en) 2016-08-08 2021-01-05 Vesuvius Usa Corporation Impact pad
EA037619B1 (ru) * 2016-08-08 2021-04-22 ВЕЗУВИУС ЮЭсЭй КОРПОРЕЙШН Ударная подушка
TWI739877B (zh) * 2016-08-08 2021-09-21 美商維蘇威美國公司 衝擊墊及減少進入耐火容器的熔融鋼衝擊流之不對準的影響之方法
AU2017308821B2 (en) * 2016-08-08 2022-05-12 Vesuvius Usa Corporation Impact pad
CN114288921A (zh) * 2022-01-11 2022-04-08 北京科技大学 一种高温合金铸造用搅拌装置

Also Published As

Publication number Publication date
CN1067610C (zh) 2001-06-27
CA2217434A1 (fr) 1998-06-11
BR9705611A (pt) 1999-03-09
KR19980064013A (ko) 1998-10-07
AU4541197A (en) 1998-06-18
CN1190039A (zh) 1998-08-12
ZA9710810B (en) 1998-06-12
FR2756762B1 (fr) 1998-12-31
JPH10175046A (ja) 1998-06-30
TW429179B (en) 2001-04-11
MX9709533A (es) 1998-12-31
ID18867A (id) 1998-05-14
FR2756762A1 (fr) 1998-06-12

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