EP0212248B1 - Installation de coulée continue verticale ou courbe pour la coulée de l'acier - Google Patents

Installation de coulée continue verticale ou courbe pour la coulée de l'acier Download PDF

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Publication number
EP0212248B1
EP0212248B1 EP86109662A EP86109662A EP0212248B1 EP 0212248 B1 EP0212248 B1 EP 0212248B1 EP 86109662 A EP86109662 A EP 86109662A EP 86109662 A EP86109662 A EP 86109662A EP 0212248 B1 EP0212248 B1 EP 0212248B1
Authority
EP
European Patent Office
Prior art keywords
inlet part
steel
casting plant
plant according
strips
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
EP86109662A
Other languages
German (de)
English (en)
Other versions
EP0212248A3 (en
EP0212248A2 (fr
Inventor
Hans Otto Thörner
Jochen Vogels
Hans Streubel
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag 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=6278145&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0212248(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT86109662T priority Critical patent/ATE55294T1/de
Publication of EP0212248A2 publication Critical patent/EP0212248A2/fr
Publication of EP0212248A3 publication Critical patent/EP0212248A3/de
Application granted granted Critical
Publication of EP0212248B1 publication Critical patent/EP0212248B1/fr
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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0401—Moulds provided with a feed head
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0408—Moulds for casting thin slabs

Definitions

  • the invention relates to a continuous steel casting plant, tum casting of steel strips or thin slabs with a thickness of less than 100 mm in which the steel melt is introduced from a pouring funnel via an inlet part sealingly connected to a sliding mold with a through-flow cross section corresponding to the mold opening into the sliding mold.
  • a roller casting machine is already known (JP-A-6 021 170), the casting rollers being preceded by an inlet part consisting of three sections.
  • the middle section of the inlet part is heated, while a lower unheated section has a funnel-shaped opening and is adapted to the underside of the roller contour without a direct connection.
  • the multiple change of the pouring cross-section up to the roll gap determining the format is disadvantageous for the formation of the strand shell and thus for the surface quality of the rolling stock.
  • the object of the invention is to achieve a uniform supply of the molten steel into the slot-like mold space in a continuous casting plant for casting steel strips or thin slabs. Furthermore, an inlet part is to be created for such a continuous caster, which is insensitive to thermal stresses and in which an excessive heat gradient between the inlet part and the mold wall is avoided.
  • the inlet section consists of a first section A, which can be heated to the liquidus temperature of the cast steel by means of a heating device (15; 17; 19), and a subsequent, unheated and uncooled section B aligned with the mold walls, and the inlet section consists of is formed by an outer support frame high temperature resistant, wear-resistant plates.
  • section B the heat transfer takes place from the heated section A to the cooled copper mold, with excessive thermal stresses and dissipation of heating heat through the mold being avoided.
  • the plate-like design of the inlet part enables the advantageous presentation of wide pouring cross-sections with a width of up to 5 mm for steel strip casting.
  • the plates forming the inlet part can advantageously consist of zirconium oxide.
  • the heated section of the inlet part can be extended to the pouring funnel.
  • the walls in the first section have an outer constriction in which the heating device is arranged. Resistance heating can be provided as the heating device.
  • strips made of electrically conductive, high-temperature-resistant material can be arranged all around in the constriction region of the inlet part, to which induction heating is assigned.
  • strips of electrically conductive, high-temperature-resistant material are encircled in section A of the inlet part, which form part of the continuous surface and to which an induction heater is assigned on the outside.
  • the inductively heated strips can advantageously consist of metallic or metal-ceramic sintered materials.
  • the strips can be made of high-temperature, wear-resistant material, e.g. Zirconia coated.
  • a mold 1 for casting thin slabs and strips consists of two broad side walls 2, 3 and two narrow side walls 4, 5 which are provided with cooling channels 6.
  • the mold 1 is held in a frame 7, which serves to guide the cooling water.
  • the narrow side walls 4, 5 are adjustable by spindles 8 for changing the width of the casting format.
  • pouring funnel 9 which is supported on the mold frame 7 by a support frame 10.
  • each of the inlet parts 12, 13, 14 consists of a heatable section A which is connected to the pouring funnel 9 and a lower section B which is in contact with the top of the mold 1.
  • the inlet parts 12, 13, 14 are formed from plates which are held in the support frame 10.
  • the heatable section A of the inlet parts 12, 13, 14 can be designed in different ways. 1 and 2, section A of the inlet parts 12, 13 is provided with a constriction in which an electrical resistance heater 15 as shown on the left, or strips 16 made of electrically conductive, fire-resistant material, for example metal-ceramic sintered materials, as on the right Page shown, are arranged.
  • the strips 16 are assigned coils 17 as induction heating at a close distance.
  • an inlet part 14 in the first section A is provided with an inner recess in which strips 18 made of electrically conductive, fire-resistant material are inserted.
  • the strips 18 are associated with induction coils 19 for heating on the outer wall of the inlet part.
  • the strips are made with a high temperature-resistant, wear-resistant material e.g. Zirconia coated.
  • the steel melt flowing from the pouring funnel 9 into the inlet part 12, 13, 14 with a narrow flow cross-section corresponding to the casting format is prevented from forming strand shells in this section by heating section A to liquidus temperature.
  • the unheated and uncooled section B there is a decrease in heat from the liquidus temperature to the cooled copper mold 1. Therefore, the formation of the strand shell 23 only begins in section B of the inlet part 12, 13 or 14 and continues continuously within the mold 1.
  • the strand 20 is guided in a known manner through support rollers 21 and cooled by water spray nozzles 22.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Coating With Molten Metal (AREA)
  • Artificial Fish Reefs (AREA)

Claims (8)

1. Installation de coulée continue d'acier pour la coulée de bandes en acier ou de brames minces de moins de 100 mm d'épaisseur, dans laquelle l'acier en fusion provenant d'un entonnoir de coulée (9) arrive dans la lingotière de glissement (1) en passant par une partie amont d'entrée (12, 13, 14) dont la section de passage correspond à l'ouverture de la lingotière de glissement (1), caractérisée en ce que, dans la lingotière de glissement (1), la partie amont d'entrée (12, 13, 14) est constituée par un premier tronçon A qui peut être porté, par un dispositif de chauffage (15, 17, 19), à la température du liquidus de l'acier coulé ainsi que par un deuxième tronçon B, placé à la suite, dans l'alignement des parois (2, 3, 4, 5) de la lingotière, qui n'est ni chauffé ni refroidi et en ce que la partie amont d'entrée est constituée par des plaques résistant à l'usure et aux températures élévées et maintenues par une structure d'appui (10).
2. Intallation de coulée continue d'acier selon la revendication 1, caractérisée en ce que les plaques qui constituent la partie amont d'entrée (12, 13, 14) sont en oxyde de zirconium.
3. Installation de coulée continue d'acier selon la revendication 1, caractérisée en ce que la paroi de la partie amont d'entrée (12, 13) comporte, dans la zone du dispositif de chauffage, une partie rétrécie extérieurement.
4. Installation de coulée continue d'acier selon la revendication 3, caractérisée par un dispositif (15), de chauffage par résistance placé dans la zone de la partie rétrécie de la partie amont d'entrée (12).
5. Installation de coulée continue d'acier selon la revendication 3, caractérisée en ce que, dans la zone de la partie rétrécie de la partie amont, elle comporte, disposées sur tout le pourtour, des pièces (16) de forme allongée qui sont constituées par une matériau conducteur de l'électricité et résistant aux températures élévées et auxquelles est associé un dispositif (17) de chauffage par induction.
6. Installation de coulée continue d'acier selon la revendication 1, caractérisée en ce que, dans le tronçon A de la partie amont d'entrée, elle comporte, insérées sur tout le pourtour, des pièces (18) de forme allongée qui sont constituées par un matériau conducteur de l'électricité et résistant aux températures élevées et qui constituent une partie de la surface de passage et auxquelles est associé un dispositif de chauffage par induction (19).
7. Installation de coulée continue d'acier selon l'une des revendications 5 ou 6, caractérisée en ce que les pièces (16, 18) de forme allongée sont constituées par des produits frittés métalliques ou des cermets.
8. Installation de coulée continue d'acier selon l'une des revendications 5 ou 6, caractérisée en ce que les pièces (16, 18) de forme allongée sont recouvertes d'un matériau résistant à l'usure et aux températures élevées, par exemple par de l'oxyde de zirconium.
EP86109662A 1985-08-09 1986-07-15 Installation de coulée continue verticale ou courbe pour la coulée de l'acier Expired - Lifetime EP0212248B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109662T ATE55294T1 (de) 1985-08-09 1986-07-15 Vertikal- oder bogenstranggiessanlage fuer stahl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853528649 DE3528649A1 (de) 1985-08-09 1985-08-09 Vertikal- oder bogenstranggiessanlage fuer stahl
DE3528649 1985-08-09

Publications (3)

Publication Number Publication Date
EP0212248A2 EP0212248A2 (fr) 1987-03-04
EP0212248A3 EP0212248A3 (en) 1988-02-24
EP0212248B1 true EP0212248B1 (fr) 1990-08-08

Family

ID=6278145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109662A Expired - Lifetime EP0212248B1 (fr) 1985-08-09 1986-07-15 Installation de coulée continue verticale ou courbe pour la coulée de l'acier

Country Status (7)

Country Link
US (1) US4719961A (fr)
EP (1) EP0212248B1 (fr)
JP (1) JPS6234651A (fr)
AT (1) ATE55294T1 (fr)
CA (1) CA1277120C (fr)
DE (2) DE3528649A1 (fr)
ES (1) ES8706495A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709188A1 (de) * 1987-03-20 1988-09-29 Mannesmann Ag Ausgiessrohr fuer metallurgische gefaesse
IT1228473B (it) * 1989-01-17 1991-06-19 Innocenti Santeustacchio Spa Metodo di alimentazione di una lingottiera in un impianto di colata continua e complesso di lingottiera per l'attuazione del metodo.
DE58902716D1 (de) * 1989-06-28 1992-12-17 Wieland Werke Ag Stranggiesskokille zum senkrechten bandgiessen von metallen.
IT1252990B (it) * 1991-10-31 1995-07-10 Danieli Off Mecc Cristallizzatore per lingottiera con curvatura longitudinale per colata continua curva per bramme sottili
US5725046A (en) * 1994-09-20 1998-03-10 Aluminum Company Of America Vertical bar caster
FR2747059B1 (fr) * 1996-04-05 1998-06-12 Ugine Savoie Sa Procede de coulee continue des metaux et lingotiere pour sa mise en oeuvre
AUPN935696A0 (en) * 1996-04-18 1996-05-16 Bhp Steel (Jla) Pty Limited Strip casting
FR2765818B1 (fr) * 1997-07-09 1999-09-17 Electrothermie Ind Comp Franc Dispositif de coulee continue
DE102010007812B4 (de) 2010-02-11 2017-04-20 Ksm Castings Group Gmbh Verfahren und Vorrichtung zur Herstellung von Kraftfahrzeug-Fahrwerksteilen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE532569A (fr) *
US443536A (en) * 1890-12-30 Art and means for covering and insulating wire
US2136394A (en) * 1935-06-29 1938-11-15 Frank F Poland Casting metal
NL289045A (fr) * 1956-05-04
US2962277A (en) * 1958-05-15 1960-11-29 Gen Electric Apparatus for continuous process of steel making
US3073441A (en) * 1960-05-11 1963-01-15 Pirelli Apparatus for hot-sheathing electric cables with tubular metal sheaths
FR1354818A (fr) * 1962-10-16 1964-03-13 Loire Atel Forges Perfectionnements à l'alimentation directe des lingotières pour la coulée continue des métaux
LU60743A1 (fr) * 1970-04-16 1972-03-02
US3941182A (en) * 1971-10-29 1976-03-02 Johan Bjorksten Continuous process for preparing unidirectionally reinforced metal foam
JPS5441987A (en) * 1977-09-09 1979-04-03 Nippon Oil & Fats Co Ltd Curing of vinyl ester resin
US4135030A (en) * 1977-12-23 1979-01-16 United Technologies Corporation Tungsten impregnated casting mold
JPS6021170A (ja) * 1983-07-15 1985-02-02 Nisshin Steel Co Ltd 連続鋳造用ノズル

Also Published As

Publication number Publication date
CA1277120C (fr) 1990-12-04
EP0212248A3 (en) 1988-02-24
EP0212248A2 (fr) 1987-03-04
DE3673283D1 (de) 1990-09-13
ATE55294T1 (de) 1990-08-15
JPS6234651A (ja) 1987-02-14
ES8706495A1 (es) 1987-07-16
US4719961A (en) 1988-01-19
ES556520A0 (es) 1987-07-16
DE3528649A1 (de) 1987-02-19

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