EP0432073A1 - Installation de coulée continue de produits métalliques minces entre deux cylindres - Google Patents

Installation de coulée continue de produits métalliques minces entre deux cylindres Download PDF

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Publication number
EP0432073A1
EP0432073A1 EP90470063A EP90470063A EP0432073A1 EP 0432073 A1 EP0432073 A1 EP 0432073A1 EP 90470063 A EP90470063 A EP 90470063A EP 90470063 A EP90470063 A EP 90470063A EP 0432073 A1 EP0432073 A1 EP 0432073A1
Authority
EP
European Patent Office
Prior art keywords
cylinders
small faces
contact
small
ceramic
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.)
Ceased
Application number
EP90470063A
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German (de)
English (en)
French (fr)
Inventor
Jean-Bernard Veyret
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.)
USINOR SA
Original Assignee
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 USINOR Sacilor SA filed Critical USINOR Sacilor SA
Publication of EP0432073A1 publication Critical patent/EP0432073A1/fr
Ceased 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams

Definitions

  • the invention relates to the continuous casting of thin metallic products, in particular steel, on installations the ingot mold of which essentially consists of two energetically cooled cylinders, parallel and horizontal or substantially horizontal and rotating in opposite directions. More specifically, it relates to the means allowing the lateral closure of the casting space delimited by the cylinders, between them.
  • the casting rolls have a perfectly cylindrical shape, in particular with sharp edges between the lateral face and the end faces.
  • the small faces can be flat over all of their zones in contact with the end faces of the cylinders. There is then a planar contact between the cylinders and the small faces. They can also include a projecting part penetrating into the inter-cylinder space: each cylinder is then in contact not only with the planar part of the small face, but also with one of the lateral faces of its projecting part. So there is a wedge-shaped contact at right angles between the cylinders and the small faces.
  • the object of the invention is to propose a configuration of the lateral parts of the head of a casting machine between rolls, including the rolls and the small faces, which makes it possible to limit as much as possible the infiltration of liquid metal out of the casting space.
  • the subject of the invention is a device for the continuous casting of thin metallic products, of the type the ingot mold of which essentially consists of two energetically cooled substantially horizontal and parallel cylinders, rotating in opposite directions, and two lateral closing plates. , called “small faces", each maintained in contact with one end of each cylinder, and delimiting the casting space in cooperation with the cooled lateral surfaces of the cylinders, characterized in that the cylinders have ends of frustoconical shape and in that that the contact between the cylinders and the small faces is made between the lateral surfaces of these frustoconical ends and parts of the small faces matching their shape.
  • the parts of the small faces in contact with the cylinders are made of ceramic, and the major part of the surface of the small faces in contact with the liquid steel is made of refractory material.
  • the invention provides the cylinder-small face contacts with a particularly favorable shape for establishing a good seal.
  • the use of ceramic provides low wear of the corresponding areas of the small faces and guarantees satisfactory conservation of this seal throughout the duration of the casting.
  • this conical contact has the advantage of a reduced contact surface between the cylinders and the small faces. This minimizes the surfaces whose machining must be of excellent quality to maintain a good seal. On the other hand, this configuration allows easy adjustment of the play which could be created as a result of the wear of the small faces.
  • Figure 1 shows a cylinder 1 intended to be mounted on a continuous casting machine for thin metallic products according to the invention.
  • Figures 2 and 4 also show the second cylinder 1 ', identical to cylinder 1 and arranged parallel to it, their respective axes being located in the same horizontal plane. These cylinders are energetically cooled by an internal circulation of water, not shown.
  • FIGS 2, 3 and 4 schematically show an embodiment of the invention.
  • On the small face 5 are formed two curved surfaces 7, 7 ′ which, once the small face in place, match the conical surfaces 4a, 4′a of the cylinders.
  • the surfaces 4a, 4′a, 7 and 7 ′ are machined precisely, so as to ensure an excellent quality contact, that a pressure applied to the rear 8 of the small face by known means not shown contributes to creating .
  • these curved surfaces are formed on a part 9 of the small face made of ceramic and constituting its periphery.
  • these materials are distinguished by wear resistance and significantly improved mechanical properties.
  • these characteristics have decisive advantages if a lasting tight contact must be made between the cylinders and the small face.
  • This ceramic part which is made of a material such as Syalon® boron nitride, silicon nitride, aluminum nitride, zirconia, chromium carbide does not constitute in the example described, as l said, that the periphery of the small face. It is generally not desirable to make the entire small ceramic face, because its cost would be too high, and above all its insulating properties would be insufficient, which would cause excessive solidification of the steel on their surface.
  • the ceramic part 9 constitutes only the framework of the active part of the small face, the heart 10 of the latter, which represents the major part of its surface in contact with the liquid steel, being produced in a refractory material of the type conventionally used for composing small faces, based on silica or alumina.
  • Figure 2 is only a schematic representation, on which the ratio of the dimensions of the various parts is not respected, in order to make the figure clearer.
  • the cylinders 1, 1 ′ have a diameter of at least several tens of cm, while the minimum distance between their lateral surfaces 2, 2 ′, at the neck 11 defining the thickness of the product , is of the order of a few mm (for example 5 to 10 mm).
  • the refractory core 10 therefore represents a proportion of the total surface of the small face substantially larger than that shown in FIG. 2.
  • machines for casting metal products between cylinders sometimes incorporate on each of the small faces a part called a "pad" which closes the casting space in the area located just above and just below the neck.
  • the pad has the particularity of being made of a material substantially more resistant to mechanical stresses and abrasion than the rest of the small face, for example a metallic material, because it is in contact with metal mainly or completely solidified which can exert a rolling effort on it.
  • mount the pad on an elastic support allowing a some withdrawal from him.
  • the small face according to the invention may also include a shoe 12 made of ceramic, visible in FIGS. 2 and 4. If it is mounted in an elastic manner by means of a device symbolized by the spring 14, it is advantageous that the part of the small face on which it must rub is also ceramic: there is thus a ceramic-ceramic contact 13 having good resistance to wear and the sealing of which can remain satisfactory throughout the use of the small face . If you do not want the pad to have elasticity, the simplest solution is of course to incorporate it into the construction on the small side.
  • the small faces can be enclosed in a support 15 (not shown in FIG. 2) comprising members (not shown) enabling the small faces to be placed against the cylinders.
  • the ceramic and refractory parts can be deposits made on a plate, for example metallic.
  • zirconia is particularly suitable for this use for ceramic parts, because of the ease with which it can be adhered to a metal support.
  • the small faces may comprise, in a known manner in their central part, an element penetrating inside the casting space, called an "insert", which may be in conventional refractory, in ceramic, or in any other material, and making it possible to improve the solidification conditions of the product.
  • the cylinders may have, on their lateral surface, at each of the ends of their cylindrical part, a hollow etching intended to promote the attachment of the solidified skin of the product to the cylinder.
  • this engraving is placed at the extreme limit of the cylindrical part and is flush with the contact zone between the cylinder and the small face, it is to be feared that it favors the infiltration of liquid metal. For this, it is preferable to place these engravings a few millimeters back from said contact area.
  • the cylinders can, on the contrary, have external faces of larger section than the middle section.
  • the geometry of the periphery of the small faces must then be modified accordingly compared to the configuration described above: its front part has a flared shape instead of narrowed.
  • the contact between the cylinders and the small faces is this time made by means of a traction exerted on the supports of the small faces, and no longer by a pressure.
  • FIG. 5 represents such a configuration, the various elements of the installation being designated by the same symbols as above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP90470063A 1989-12-07 1990-11-21 Installation de coulée continue de produits métalliques minces entre deux cylindres Ceased EP0432073A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916320 1989-12-07
FR8916320A FR2655577B1 (fr) 1989-12-07 1989-12-07 Installation de coulee continue de produits metalliques minces entre deux cylindres.

Publications (1)

Publication Number Publication Date
EP0432073A1 true EP0432073A1 (fr) 1991-06-12

Family

ID=9388340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90470063A Ceased EP0432073A1 (fr) 1989-12-07 1990-11-21 Installation de coulée continue de produits métalliques minces entre deux cylindres

Country Status (18)

Country Link
US (1) US5058658A (cs)
EP (1) EP0432073A1 (cs)
JP (1) JPH04111950A (cs)
KR (1) KR910011362A (cs)
CN (1) CN1052268A (cs)
AU (1) AU633660B2 (cs)
BR (1) BR9006195A (cs)
CA (1) CA2031709A1 (cs)
CS (1) CS599590A2 (cs)
FI (1) FI905942L (cs)
FR (1) FR2655577B1 (cs)
HU (1) HU206286B (cs)
IE (1) IE904213A1 (cs)
NO (1) NO905237L (cs)
PL (1) PL288144A1 (cs)
PT (1) PT96112A (cs)
YU (1) YU230290A (cs)
ZA (1) ZA909802B (cs)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552125A1 (fr) * 1992-01-17 1993-07-21 USINOR SACILOR Société Anonyme Dispositif de coulée continue entre cylindres comportant des parois latérales en matériaux réfractaires
FR2695580A1 (fr) * 1992-09-14 1994-03-18 Usinor Sacilor Dispositif de coulée continue entre cylindres de produits métalliques minces.
FR2699436A1 (fr) * 1992-12-17 1994-06-24 Usinor Sacilor Dispositif de coulée continue entre cylindres de produits métalliques minces.
WO1996000626A1 (fr) * 1994-06-30 1996-01-11 Vesuvius France S.A. Face laterale pour une machine de coulee en continu de tole mince
FR2723013A1 (fr) * 1994-08-01 1996-02-02 Vesuvius France Sa Face laterale pour une machine de coulee en continu de tole mince
FR2749785A1 (fr) * 1996-06-13 1997-12-19 Usinor Sacilor Face laterale d'obturation pour installation de coulee continue de bandes metalliques entre deux cylindres
FR2765504A1 (fr) * 1997-07-04 1999-01-08 Usinor Face laterale d'obturation de l'espace de coulee d'une installation de coulee continue entre cylindres de bandes minces metalliques
EP0901851A1 (fr) * 1997-09-12 1999-03-17 Usinor Face laterale pour l'obturation de l'espace de coulee d'une installation de coulee continue de bandes metalliques entre cylindres, et installation de coulee ainsi equipee
EP1213273B2 (de) † 2000-11-09 2009-10-07 ESK Ceramics GmbH & Co.KG Verfahren zum Recycling von Seitenplatten für das Dünnbandgiessen von Stahl

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666256B1 (fr) * 1990-09-03 1992-10-16 Usinor Sacilor Installation de coulee continue entre cylindres.
CN1077819C (zh) * 1997-12-20 2002-01-16 浦项综合制铁株式会社 用来润滑双辊式带材连铸机中的边部挡板的装置及其方法
KR100431832B1 (ko) * 1999-08-26 2004-05-20 주식회사 포스코 쌍롤식 박판주조장치용 에지댐
FR2842130B1 (fr) * 2002-07-12 2004-10-15 Usinor Face laterale pour installation de coulee continue de bandes metalliques entre deux cylindres
KR20170074301A (ko) * 2015-12-21 2017-06-30 주식회사 포스코 쌍롤식 박판주조기의 에지댐

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212423A2 (en) * 1985-08-05 1987-03-04 Hitachi, Ltd. Continuous casting apparatus of twin-drum type

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533601B2 (ja) * 1988-02-22 1996-09-11 株式会社日立製作所 双ロ―ル式連続鋳造機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212423A2 (en) * 1985-08-05 1987-03-04 Hitachi, Ltd. Continuous casting apparatus of twin-drum type

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 495 (M-780)(3342), 23 décembre 1988; & JP - A - 63215343 (NISSHIN STEEL) 07.09.1988 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 264 (M-423)(1987), 22 octobre 1985; & JP - A - 60111743 (MITSUBISHI) 18.06.1985 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552125A1 (fr) * 1992-01-17 1993-07-21 USINOR SACILOR Société Anonyme Dispositif de coulée continue entre cylindres comportant des parois latérales en matériaux réfractaires
FR2695580A1 (fr) * 1992-09-14 1994-03-18 Usinor Sacilor Dispositif de coulée continue entre cylindres de produits métalliques minces.
EP0588743A1 (fr) * 1992-09-14 1994-03-23 USINOR SACILOR Société Anonyme Dispositif de coulée continue entre cylindres de produits métalliques minces
FR2699436A1 (fr) * 1992-12-17 1994-06-24 Usinor Sacilor Dispositif de coulée continue entre cylindres de produits métalliques minces.
WO1996000626A1 (fr) * 1994-06-30 1996-01-11 Vesuvius France S.A. Face laterale pour une machine de coulee en continu de tole mince
FR2723013A1 (fr) * 1994-08-01 1996-02-02 Vesuvius France Sa Face laterale pour une machine de coulee en continu de tole mince
FR2749785A1 (fr) * 1996-06-13 1997-12-19 Usinor Sacilor Face laterale d'obturation pour installation de coulee continue de bandes metalliques entre deux cylindres
FR2765504A1 (fr) * 1997-07-04 1999-01-08 Usinor Face laterale d'obturation de l'espace de coulee d'une installation de coulee continue entre cylindres de bandes minces metalliques
EP0894556A1 (fr) * 1997-07-04 1999-02-03 Usinor Face latérale d'obturation de l'espace de coulée d'une installation de coulée continue entre cylindres de bandes minces métalliques
US6082437A (en) * 1997-07-04 2000-07-04 Usinor Side wall for closing off the casting space of a plant for the twin-roll continuous casting of thin metal strip
CN1074694C (zh) * 1997-07-04 2001-11-14 于西纳公司 用于封闭薄金属带材双辊连铸设备中的铸造腔的侧板
EP0901851A1 (fr) * 1997-09-12 1999-03-17 Usinor Face laterale pour l'obturation de l'espace de coulee d'une installation de coulee continue de bandes metalliques entre cylindres, et installation de coulee ainsi equipee
FR2768354A1 (fr) * 1997-09-12 1999-03-19 Usinor Face laterale pour l'obturation de l'espace de coulee d'une installation de coulee continue de bandes metalliques entre cylindres, et installation de coulee ainsi equipee
CN1074328C (zh) * 1997-09-12 2001-11-07 于西纳公司 封闭金属带材双辊连铸机铸腔的侧壁和配有该侧壁的连铸机
EP1213273B2 (de) † 2000-11-09 2009-10-07 ESK Ceramics GmbH & Co.KG Verfahren zum Recycling von Seitenplatten für das Dünnbandgiessen von Stahl

Also Published As

Publication number Publication date
KR910011362A (ko) 1991-08-07
FR2655577B1 (fr) 1992-01-24
HU206286B (en) 1992-10-28
AU633660B2 (en) 1993-02-04
NO905237L (no) 1991-06-10
JPH04111950A (ja) 1992-04-13
PL288144A1 (en) 1991-12-02
NO905237D0 (no) 1990-12-04
ZA909802B (en) 1992-07-29
HU908052D0 (en) 1991-06-28
CS599590A2 (en) 1991-09-15
BR9006195A (pt) 1991-09-24
PT96112A (pt) 1991-09-30
FI905942A7 (fi) 1991-06-08
CA2031709A1 (fr) 1991-06-08
US5058658A (en) 1991-10-22
CN1052268A (zh) 1991-06-19
AU6763090A (en) 1991-06-13
HUT56014A (en) 1991-07-29
IE904213A1 (en) 1991-06-19
FR2655577A1 (fr) 1991-06-14
FI905942L (fi) 1991-06-08
FI905942A0 (fi) 1990-12-03
YU230290A (sh) 1993-11-16

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