EP0269180A2 - Vorrichtung zum Giessen eines pastenartigen Metalles - Google Patents

Vorrichtung zum Giessen eines pastenartigen Metalles Download PDF

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Publication number
EP0269180A2
EP0269180A2 EP87202263A EP87202263A EP0269180A2 EP 0269180 A2 EP0269180 A2 EP 0269180A2 EP 87202263 A EP87202263 A EP 87202263A EP 87202263 A EP87202263 A EP 87202263A EP 0269180 A2 EP0269180 A2 EP 0269180A2
Authority
EP
European Patent Office
Prior art keywords
duct
metal
casting
distributor member
section
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
EP87202263A
Other languages
English (en)
French (fr)
Other versions
EP0269180A3 (en
EP0269180B1 (de
Inventor
Stéphan Wilmotte
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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
Priority claimed from LU86688A external-priority patent/LU86688A1/fr
Priority claimed from LU86739A external-priority patent/LU86739A7/fr
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Priority to AT87202263T priority Critical patent/ATE71004T1/de
Publication of EP0269180A2 publication Critical patent/EP0269180A2/de
Publication of EP0269180A3 publication Critical patent/EP0269180A3/fr
Application granted granted Critical
Publication of EP0269180B1 publication Critical patent/EP0269180B1/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
    • B22D11/11—Treating the molten metal
    • B22D11/112—Treating the molten metal by accelerated cooling
    • 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
    • B22D11/11—Treating the 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
    • B22D41/58—Pouring-nozzles with gas injecting means
    • 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
    • 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
    • B22D41/62—Pouring-nozzles with stirring or vibrating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S164/00—Metal founding
    • Y10S164/90—Rheo-casting

Definitions

  • the present invention relates to a device for casting a metal, particularly steel, in the pasty phase in a continuous casting ingot mold.
  • the objective of the present invention is to propose a particular device making it possible to create the conditions leading to the appearance of a pasty phase in the metal during its path between the ladle or the tundish on the one hand and the continuous casting ingot mold on the other hand.
  • the casting device according to the invention can therefore be used with a ladle or a casting basket fitted with a conventional nozzle.
  • the device for casting a metal in the pasty phase into a continuous casting ingot mold which is the subject of the present invention, is essentially characterized in that it comprises a vertical duct, arranged upstream of said ingot mold compared to direction of circulation of the metal, in that this duct is externally provided with cooling means, and in that a distributor member is disposed substantially at the inlet of said conduit, said distributor member being intended to deflect the metal flowing from the nozzle towards the interior surface of said vertical duct.
  • the outlet end of this vertical duct is connected to the inlet end of said mold.
  • said vertical duct is extended by a tubular element penetrating into the mold.
  • the passage section of this tubular element is at least double the outlet section of the nozzle fitted to the ladle or the tundish. This increased section is intended to avoid clogging by the metal which, at this point, is in the pasty phase.
  • this duct comprises at least one frustoconical section, converging in the direction of circulation of the metal, the angle ⁇ of inclination of the wall of said section not being greater than 45 ° relative to the axis longitudinal of the duct and preferably being between 3 ° and 20 °.
  • the distributor member is constituted by a substantially horizontal plate; the thickness of said plate decreases from the center towards the edges; it has an external contour such that it provides at least one passage between the edge of the plate and the internal wall of the duct.
  • the casting device further comprises a cap mounted on the inlet end of said conduit and pierced with an opening intended to allow passage to the casting nozzle.
  • This cap delimits a chamber situated essentially above said distributor member and into which a protective gas can be introduced by appropriate means.
  • the device of the invention is part of an installation also comprising a ladle or a tundish fitted with a nozzle and a mold for continuous casting. It is mounted between on the one hand the ladle or the tundish and on the other hand the ingot mold, in such a way that said nozzle opens into the inlet end of the vertical duct, above the distributor member, and that the outlet end of the vertical conduit, respectively of the tubular element which extends it, opens into said ingot mold for continuous casting.
  • said vertical duct comprises an inlet section of which at least the interior surface is made of a refractory material, and said distributor member is disposed in this inlet section.
  • the metal flowing from the nozzle is deflected by the distributor member towards the refractory inner wall of said inlet section.
  • This wall does not suffer damage due to the heat flow applied by the metal.
  • it can undergo mechanical degradation by erosion in the impact area of the metal.
  • this erosion phenomenon can be delayed by using a refractory material which has a high resistance to erosion by liquid metal.
  • Another means according to the invention for delaying the erosion of said refractory section consists in making the distributor member vertically displaceable in translation. It is thus possible to modify the vertical position of the distributor member with respect to the refractory inlet section, either between two successive casting operations, or possibly during a casting operation. This characteristic makes it possible to distribute the erosion over at least part of the axial length of said refractory inlet section and thus to prolong its service life.
  • the liquid metal deflected by the distributor member flows, without appreciable cooling, along the lower part of the refractory inlet section, then along the copper section where it undergoes the desired cooling.
  • the device of the invention comprises means for blowing a gaseous agent inside said vertical duct, below the distributor member.
  • These means are advantageously constituted by at least one injector mounted on the underside of said distributor member and connected to an appropriate source of a gaseous agent, the latter preferably being an inert gas such as argon.
  • the gas agent thus blown allows the pressure to be restored under the distributor member and therefore ensures correct application of the thin layer of metal against the interior wall of the vertical duct.
  • an element of the vertical duct for example the inlet section made of refractory material or else the frustoconical element is provided with means intended to impart a rotational movement to the metal passing through said section.
  • FIG. 1 shows, in elevation, a pouring device according to the invention, mounted between a continuous casting ingot mold 1 and a ladle or a casting basket symbolized by the nozzle 2.
  • a tapered copper pipe 3 is mounted on the ingot mold 1; this duct is provided with water cooling shown diagrammatically by the arrows 4 and 5.
  • a distributor member in the form of a plate 6 whose thickness decreases from the center towards edges. The shape of this plate is adapted to that of the section of the conduit 3.
  • FIG. 2 shows a plate whose edge carries four projections ensuring the centering of the plate in the conduit, while peripheral passages are provided between the projections.
  • the conduit 3 is lined with a cap 7 delimiting a chamber 8 above the distributor plate 6.
  • This cap 7 is provided with an opening in which the nozzle 2 engages; the cap 7 is also provided with a system 9 for introducing a gas under pressure into the chamber 8.
  • a gas introduction system is well known per se and is not described in detail here.
  • FIG. 3 illustrates the variant of the device of the invention, in which the vertical duct 3 is extended by a tubular element 10 penetrating inside the ingot mold 1. If necessary, the lower end of this tubular element 10 can be immersed in the pasty metal that is in the mold. For the rest, this variant corresponds entirely to the representation of FIG. 1.
  • FIG. 4 represents a casting device comprising a vertical duct 3 externally provided with a cooling circuit 4, 5, and a distributor member 6 disposed in this vertical duct.
  • the vertical duct 3 is extended by a tubular element 10 which enters a continuous casting mold 1, while the distributor member 6 is located below a nozzle 2 fitted to a casting container, not shown.
  • the vertical duct 3 comprises an inlet section 11 made of refractory material, inside of which is located the distributor member 6.
  • This is further provided with an injector 12 connected by a pipe 13 to a source of gaseous agent not shown.
  • the gaseous agent injected by the injector 12 forms inside the vertical pipe 3 a gas pocket which applies the thin layer of metal 14 against the interior surface of this vertical pipe.
  • the device shown in Figure 5 is basically similar to that of Figure 4. It differs only in that the inlet section 11 of refractory material has a greater axial length and that it is surrounded by inductors 15. These inductors generate a rotating electromagnetic field which puts the metal in rotation in the inlet section 11, which ensures good distribution of the liquid metal at the periphery of the inlet section. In addition, the resulting centrifugation effect is added to the action of the gaseous agent injected by the injector 12 to ensure the application of the thin layer of metal 14 against the interior wall of the inlet section. 11. The metal 14 is therefore rotated before entering the copper cooling section of the vertical pipe 3.
  • the mode of operation of this device is as follows.
  • the conduit 3 is mounted on the mold 1, then the distributor plate 6 and the cap 7 are in turn put in place.
  • the ladle or the tundish, not shown, is then brought into position so as to engage the nozzle 2 in the opening made in the cap 7.
  • the liquid steel thus flows in a thin layer spreading over the interior wall of the conduit 3.
  • the cooling of the conduit ensures the elimination of the overheating of the steel and causes the appearance of a solid fraction which makes the pasty steel at its entry into the ingot mold 1.
  • a pressurized protective gas for example argon
  • the pipe was cooled by water circulating at high speed ensuring an average density of cooling flow of 3 MW / m2.
  • the evacuated heat flow amounted to 72 MW and led to a solid fraction of 38% by volume in the steel entering the ingot mold.
  • the device of the invention has a large heat exchange surface between the cooled pipe and the liquid steel; the high flow speed of the latter along the wall of the duct makes it possible to achieve a high density of heat flow. He would not go out moreover, it is not within the scope of the invention to increase this density of flux by imparting to the conduit a rotational movement around its axis.
  • the device of the invention is simple, compact and robust. It has great operational safety, in particular due to a very low risk of blockage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Die Bonding (AREA)
EP87202263A 1986-11-26 1987-11-19 Vorrichtung zum Giessen eines pastenartigen Metalles Expired - Lifetime EP0269180B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87202263T ATE71004T1 (de) 1986-11-26 1987-11-19 Vorrichtung zum giessen eines pastenartigen metalles.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
LU86688A LU86688A1 (fr) 1986-11-26 1986-11-26 Dispositif de coulee d'un metal en phase pateuse
LU86688 1986-11-26
LU86739 1987-01-16
LU86739A LU86739A7 (fr) 1987-01-16 1987-01-16 Dispositif de coulee d'un metal en phase pateuse

Publications (3)

Publication Number Publication Date
EP0269180A2 true EP0269180A2 (de) 1988-06-01
EP0269180A3 EP0269180A3 (en) 1988-08-10
EP0269180B1 EP0269180B1 (de) 1992-01-02

Family

ID=26640324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202263A Expired - Lifetime EP0269180B1 (de) 1986-11-26 1987-11-19 Vorrichtung zum Giessen eines pastenartigen Metalles

Country Status (6)

Country Link
US (1) US4874471A (de)
EP (1) EP0269180B1 (de)
JP (1) JPH0815638B2 (de)
AT (1) ATE71004T1 (de)
DE (1) DE3775722D1 (de)
ES (1) ES2029268T3 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452294A3 (de) * 1990-04-11 1994-01-19 Centre Rech Metallurgique
EP0605379A1 (de) * 1992-12-28 1994-07-06 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Verfahren zum Giessen eines pastenartigen Metalles
BE1012037A3 (fr) * 1998-06-11 2000-04-04 Centre Rech Metallurgique Busette pour couler en continu de l'acier.
BE1014063A3 (fr) * 2001-03-22 2003-03-04 Ct De Rech S Metallurg Ass San Procede et dispositif pour couler en continu de l'acier presentant des oxydes fins.
WO2008070935A1 (fr) * 2006-12-12 2008-06-19 Centre De Recherches Metallurgiques Asbl - Centrum Voor Research In De Metallurgie Vzw Busette a jet creux pour coulee continue d'acier
WO2009074736A1 (fr) 2007-10-10 2009-06-18 Arcelormittal-Stainless France Procede de fabrication d'aciers inoxydables comportant de fins carbonitrures, et produit obtenu a partir de ce procede
WO2013144667A1 (en) * 2012-03-28 2013-10-03 Arcelormittal Investigacion Y Desarrollo Sl Continuous casting equipment
US9004150B2 (en) 2005-03-16 2015-04-14 Centre de Recherches Metallurgiques ASBL—Centrum Voor Research in de Metallurgie VZW Method for continuous casting of a metal with improved mechanical strength and product obtained by said method
RU2574149C1 (ru) * 2012-03-28 2016-02-10 Арселормитталь Инвестигасьон И Десарролло Сл Оборудование для непрерывного литья

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68901655T2 (de) * 1988-02-03 1993-04-29 Centre Rech Metallurgique Vorrichtung zum kuehlen eines metalls waehrend des giessens.
BE1004121A6 (fr) * 1990-05-04 1992-09-29 Lahaut Hugues Dispositif pour la coulee d'un metal et procede d'utilisation de ce dispositif.
US5135564A (en) * 1990-12-28 1992-08-04 Rheo-Technology, Ltd. Method and apparatus for the production of semi-solidified metal composition
BE1005165A3 (fr) * 1991-08-12 1993-05-11 Centre Rech Metallurgique Procede et dispositif pour la coulee continue d'un metal en fusion.
US5555926A (en) * 1993-12-08 1996-09-17 Rheo-Technology, Ltd. Process for the production of semi-solidified metal composition
US5963336A (en) 1995-10-10 1999-10-05 American Air Liquide Inc. Chamber effluent monitoring system and semiconductor processing system comprising absorption spectroscopy measurement system, and methods of use
US5887640A (en) * 1996-10-04 1999-03-30 Semi-Solid Technologies Inc. Apparatus and method for semi-solid material production
US5881796A (en) * 1996-10-04 1999-03-16 Semi-Solid Technologies Inc. Apparatus and method for integrated semi-solid material production and casting
BR9912315A (pt) 1998-07-24 2001-10-16 Gibbs Die Casting Aluminum Aparelho e método de fundição semi-sólida
GB2347886A (en) * 1999-03-17 2000-09-20 British Steel Plc Apparatus for removing superheat from liquid metal using a distributor
BE1013745A3 (fr) * 2000-10-10 2002-07-02 Ct De Rech S Metallurg Ass San Procede et dispositif pour couler en continu de l'acier a composition chimique mixte.
BE1014278A3 (fr) * 2001-07-05 2003-07-01 Ct Rech Metallurgiques Asbl Procede de coulee d'un lingot metallique de qualite amelioree et dispositif pour sa mise en oeuvre.
US6964199B2 (en) * 2001-11-02 2005-11-15 Cantocor, Inc. Methods and compositions for enhanced protein expression and/or growth of cultured cells using co-transcription of a Bcl2 encoding nucleic acid
US20050126737A1 (en) * 2003-12-04 2005-06-16 Yurko James A. Process for casting a semi-solid metal alloy
CN101462154B (zh) * 2008-11-28 2011-05-18 苏州明志科技有限公司 插入式热芯盒用水冷射嘴结构
MX361679B (es) * 2012-03-28 2018-12-13 Arcelormittal Investigacion Y Desarrollo Sl Procedimiento de colada continua de metal.
EP2656945A1 (de) * 2012-04-26 2013-10-30 SMS Concast AG Feuerfestes Giessrohr für eine Kokille zum Stranggiessen von Metallschmelze
US9616494B2 (en) * 2014-03-28 2017-04-11 Scott Vader Conductive liquid three dimensional printer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016924A (en) * 1975-09-17 1977-04-12 Aluminum Company Of America Method of continuous casting with weighted float-distributor
DE2707774A1 (de) * 1976-02-24 1977-09-01 Alusuisse Verfahren und vorrichtung zum kontinuierlichen giessen einer metallschmelze in giessformen

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE1458031B1 (de) * 1964-09-22 1971-10-14 Hoesch Ag Verfahren und Vorrichtung zum Stranggiessen von Metall
US3705672A (en) * 1970-07-29 1972-12-12 Robert A Saxer Splash arrester having pact member supported in housing
SU445511A1 (ru) * 1973-02-02 1974-10-05 Донецкий научно-исследовательский институт черной металлургии Устройство дл охлаждени разливаемого металла
SU850282A1 (ru) * 1978-09-20 1981-08-10 Донецкий Научно-Исследовательскийинститут Черной Металлургии Устройство дл охлаждени расплавлен-НОгО МЕТАллА пРи НЕпРЕРыВНОй РАзлиВКЕ
SU1079347A1 (ru) * 1983-02-04 1984-03-15 Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Черной Металлургии Им.И.П.Бардина Устройство дл разливки металлов
GB8510120D0 (en) * 1985-04-19 1985-05-30 Singer A R E Metal forming process
JP2943955B2 (ja) * 1991-11-22 1999-08-30 宇部興産株式会社 押出プレスにおけるシャー装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016924A (en) * 1975-09-17 1977-04-12 Aluminum Company Of America Method of continuous casting with weighted float-distributor
DE2707774A1 (de) * 1976-02-24 1977-09-01 Alusuisse Verfahren und vorrichtung zum kontinuierlichen giessen einer metallschmelze in giessformen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0452294A3 (de) * 1990-04-11 1994-01-19 Centre Rech Metallurgique
EP0605379A1 (de) * 1992-12-28 1994-07-06 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Verfahren zum Giessen eines pastenartigen Metalles
BE1012037A3 (fr) * 1998-06-11 2000-04-04 Centre Rech Metallurgique Busette pour couler en continu de l'acier.
BE1014063A3 (fr) * 2001-03-22 2003-03-04 Ct De Rech S Metallurg Ass San Procede et dispositif pour couler en continu de l'acier presentant des oxydes fins.
US9004150B2 (en) 2005-03-16 2015-04-14 Centre de Recherches Metallurgiques ASBL—Centrum Voor Research in de Metallurgie VZW Method for continuous casting of a metal with improved mechanical strength and product obtained by said method
WO2008070935A1 (fr) * 2006-12-12 2008-06-19 Centre De Recherches Metallurgiques Asbl - Centrum Voor Research In De Metallurgie Vzw Busette a jet creux pour coulee continue d'acier
BE1017392A3 (fr) * 2006-12-12 2008-08-05 Ct Rech Metallurgiques Asbl Busette a jet creux pour coulee continue d'acier.
WO2009074736A1 (fr) 2007-10-10 2009-06-18 Arcelormittal-Stainless France Procede de fabrication d'aciers inoxydables comportant de fins carbonitrures, et produit obtenu a partir de ce procede
WO2013144667A1 (en) * 2012-03-28 2013-10-03 Arcelormittal Investigacion Y Desarrollo Sl Continuous casting equipment
KR20140125456A (ko) * 2012-03-28 2014-10-28 아르셀러미탈 인베스티가시온 와이 데살롤로 에스엘 연속 주조 장비
RU2574149C1 (ru) * 2012-03-28 2016-02-10 Арселормитталь Инвестигасьон И Десарролло Сл Оборудование для непрерывного литья
US9498822B2 (en) 2012-03-28 2016-11-22 Arcelormittal Investigacion Y Desarrollo, S.L. Continuous casting equipment

Also Published As

Publication number Publication date
DE3775722D1 (de) 1992-02-13
ES2029268T3 (es) 1992-08-01
US4874471A (en) 1989-10-17
JPH0815638B2 (ja) 1996-02-21
EP0269180A3 (en) 1988-08-10
JPS63199056A (ja) 1988-08-17
ATE71004T1 (de) 1992-01-15
EP0269180B1 (de) 1992-01-02

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