EP0401145B1 - Vorrichtung zum Stranggiessen von flüssigem Metall zwischen zwei Zylindern - Google Patents

Vorrichtung zum Stranggiessen von flüssigem Metall zwischen zwei Zylindern Download PDF

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Publication number
EP0401145B1
EP0401145B1 EP90470030A EP90470030A EP0401145B1 EP 0401145 B1 EP0401145 B1 EP 0401145B1 EP 90470030 A EP90470030 A EP 90470030A EP 90470030 A EP90470030 A EP 90470030A EP 0401145 B1 EP0401145 B1 EP 0401145B1
Authority
EP
European Patent Office
Prior art keywords
cylinders
plates
cylinder
rolling members
plate
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
EP90470030A
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English (en)
French (fr)
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EP0401145A1 (de
Inventor
Philippe Blin
Georges Weber
Jacques Barbe
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
Priority to AT90470030T priority Critical patent/ATE91245T1/de
Publication of EP0401145A1 publication Critical patent/EP0401145A1/de
Application granted granted Critical
Publication of EP0401145B1 publication Critical patent/EP0401145B1/de
Anticipated expiration legal-status Critical
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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 subject of the present invention is a device for continuous casting of liquid metal, comprising two horizontal cylinders, parallel and separated by a predetermined distance, delimiting between them a space intended to receive liquid metal poured into a flat product under the cylinders, as well as closure plates for the ends of this space, arranged against the front faces of the cylinders, or against a front face of a cylinder and part of the cylindrical surface of the other cylinder if the two cylinders are offset axially (JP-A- 57 94456).
  • the invention therefore aims to provide a device in which these drawbacks are eliminated.
  • the casting device comprises rolling members interposed between said closure plates and said faces of the cylinders to keep the above-mentioned clearance set constant. initially, during casting.
  • said rolling members are incorporated into the plates and held in abutment against the surfaces facing the cylinders by elastic elements.
  • These rolling members can be balls or rollers whose axes are arranged along radii of the cylinders, and which are dimensioned so that the distance between the surfaces of the plates and the surfaces facing the cylinders is equal to the desired game.
  • the plates and their balls or rollers are held against the surfaces of the cylinders by springs bearing on support frames fitted to each plate.
  • This play holding device does not require any monitoring or adjustment during casting as a function of variations in the size of the cylinders due to expansion, thanks to the fact that the play is self-maintained by the support springs.
  • Figure 1 is a simplified perspective view of a continuous casting device of liquid metal of the type targeted by the invention.
  • Figure 2 is a top view with cutaway of two ends of the cylinders of the device of Fig.1, equipped with a plate with rolling members according to the invention.
  • Figure 3 is an end elevational view of the device of Fig.2.
  • Figure 4 is a simplified top view of a second embodiment of the casting device according to the invention.
  • Figure 5 is an end elevational view along arrow K of Fig.4
  • FIG. 6 is a top view of an industrial embodiment of the casting device of FIGS. 4 and 5.
  • the device shown in Figs 1 to 3 is intended for the continuous casting of a bath 1 of liquid metal, for example steel between two cylinders 2a, 2b horizontal, parallel and separated by a predetermined distance d , corresponding to l thickness of the solidified flat product 3 which is extracted under the cylinders 2 during casting.
  • This device also includes two end plates 4 for closing the ends of the casting space between the cylinders 2.
  • the plates 4 are arranged with a determined clearance against the face faces 5, 6 of the cylinders 2, which in this example are not axially offset.
  • the device is equipped with means for keeping the clearance (e) between the plates 4 and the end faces 5, 6 constant during casting, by means of rolling members incorporated in the plates 4.
  • rolling members are, at least two rollers 7 per cylinder 2a and 2b, partially housed in the plate 4 and mounted in journals on axes 8 directed along radii r of the cylinders 2a, 2b.
  • the rollers 7 are positioned in the vicinity of the periphery of the cylinders 2a, 2b, so as to bear on annular hoops 11, 12, for example made of copper.
  • These frets respectively equip the cylinders 2a, 2b and are the parts of these undergoing the main expansion.
  • the rollers 7 are dimensioned and positioned in the face of the plates 4 facing the cylinders 2a, 2b projecting from this face so that the distance e between the surfaces of the plates 4 and the respective end faces 5, 6 of the cylinders is equal to desired clearance, for example 0.1mm for a casting of liquid steel.
  • Elastic means comprising springs 10 bearing on a support frame 20 apply to the plates 4 thrusts of appropriate strength, sufficient to prevent the plates 4 from falling back under the effect of the pressure exerted on them by the metal contained in casting space. These thrusts are directed towards the front faces 5, 6 of the cylinders, in order to keep the rolling members 7 in abutment against their respective faces 5, 6.
  • rollers 7 can be replaced by balls or else each plate 4 can be provided with balls for pressing on one cylinder and rollers for pressing on the other cylinder.
  • the clearance e will be kept constant, at the value making it possible both to prevent any infiltration of liquid metal between the plates 4 and the end faces 5, 6 of the cylinders, and significant wear on the surface of the plates 4.
  • the casting device schematically shown in Figs. 4 and 5 has two cylinders 13, 14 parallel and spaced apart by a distance d as in the previous case, but these cylinders are offset here axially by a distance x , which therefore separates their respective end faces 13a, 14a.
  • each end closure plate 15 of the casting space between the two cylinders 13, 14 has a concave edge 15a matching the convex outline of the cylindrical side 13b of the corresponding cylinder 13, while its flat face partially covers the face associated frontal 14a of the cylinder 14.
  • Each plate 15 is therefore provided with rolling members placed in abutment on the end face 14a and on the cylindrical side 13b, for example as shown rollers 7 for the face 14a and balls 9 for side 13b.
  • the elastic means are additionally arranged to hold the plates 15 against the faces 14a and against the cylindrical surface 13b, namely a first spring 16 directed substantially in the plane of each plate 15 and exerting on the edge thereof opposite the bodies of bearing 9 a force tending to apply these on the cylindrical side 13b, and on the other hand a second spring 17 arranged perpendicular to the previous one and to the plate 15, the force of which keeps the rolling members 7 in abutment against the face 14a.
  • the springs 16 and 17 are carried by a support frame, not shown.
  • Each plate 15 consists of a chassis 18 with a U-section, provided with a part 19 of closing of the corresponding end of the pouring space containing the liquid metal 1.
  • the frame 18 is open opposite the lateral surface of the cylinder 14, and contains at at least two rollers 21 with an axis 22 journalling in bearings 23 carried by a casing 24 fixed to adjustment means 25, themselves fixed to the branches of the chassis 18. These adjustment means make it possible to adjust the initial clearance e1 between the part closure 19 and the hoop 14c of the cylinder 14.
  • Each closure plate 15 is additionally equipped with at least two rollers 26 journalling in yokes 27 fixed to each branch of the chassis 18 facing the corresponding end face 13a, 14a, of the respective cylinders 13 and 14.
  • the rollers 26 have their axes arranged along radii of cylinders 13 and 14 and are dimensioned, as well as the yokes 27, so as to maintain between the closing pieces 19 and the hoops 13c, 14c of the cylinders 13, 14, the desired clearance e .
  • This clearance can also be adjusted initially, for example by interposing shims of adjusted thickness between the chassis 18 and the closure part 19.
  • the cylinders 13, 14 incorporate channels 28 for cooling by fluid, for example water.
  • rollers 7 and 26 can be replaced by balls such as 9, and conversely the balls 9 can be replaced by rollers. All other rolling elements such as needles can also be used.
  • raceways of the running gear must be as much as possible directly linked to the frets of the cylinders and follow the deformations thereof.
  • these raceways may be formed either, as shown in Figure 6, by inserts, corresponding to the end faces 13a, 14a, moving with the edges of the hoop (13c, 14c), or by a coating of these edges specially provided so as to avoid wear of the raceway.
  • the choice of solution will depend on the nature, and in particular the hardness, of the alloy constituting the hoop. In all cases, an effort will be made to place the rolling members as close as possible to the outer surface of the hoops, in order to follow the deformations of these as closely as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Vehicle Body Suspensions (AREA)
  • Pinball Game Machines (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Claims (5)

  1. Vorrichtung zum kontinuierlichen Gießen von flüssigem Metall (1), mit zwei waagrechten parallelen Rollen (2a, 2b; 13, 14), die durch einen vorgegebenen Abstand (d) voneinander getrennt sind und einen Raum zwischen sich begrenzen, der der Aufnahme von flüssigem Metall dient, das zu einem flachen Gegenstand unterhalb der Rollen gegossen wird, sowie mit seitlichen Abdichtungen für die Enden des Raumes, die an den Stirnflächen der Rollen anliegen oder an einer Stirnfläche einer Rolle (14) und an einem Teil der zylindrischen Oberfläche der anderen Rolle (13) anliegen, sofern die beiden Rollen axial verschoben sind, dadurch gekennzeichnet, daß Lageranordnungen (7, 9) zwischen den seitlichen Abdichtungen (4, 15) und den genannten Flächen der Rollen angeordnet sind, um während des Gießvorgangs ein vorgegebenes Spiel zwischen ihnen konstant zu halten.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Lageranordnungen (7, 9) in die seitlichen Abdichtungen (4, 15) eingesetzt sind und sich, beaufschlagt von elastischen Teilen (10, 16,17), auf den ihnen gegenüberliegenden Flächen der Rollen (2a, 2b; 13, 14) abstützen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Lageranordnungen Kugeln (9) und/oder Rollwalzen (7) sind, deren Achsen entlang der Radien (r) der Rollen angeordnet sind und die bezüglich der Abdichtungen (4, 15) derart gehalten werden, daß der Abstand zwischen den Flächen der Abdichtungen (4, 15) und den gegenüberliegenden Flächen der Rollen (2a, 2b; 13, 14) gleich dem gewünschten Spiel (e) ist.
  4. Vorrichtung nach Anspruch 1, bei der die Rollen (13, 14) axial zueinander verschoben sind und jede Abdichtung (15) einen konkaven Rand (15a) aufweist, der am konvexen Umfang (13b) der zylindrischen Wand einer ersten zugehörigen Rolle (13) anliegt, während ihre ebene Fläche teilweise die zugehörige Stirnfläche (14a) der zweiten Rolle (14) bedeckt, dadurch gekennzeichnet, daß jede Abdichtung (15) mit Lageranordnungen (7, 9) versehen ist, die einerseits auf der Stirnfläche (14a) der zweiten Rolle (14) und andererseits auf der zylindrischen Oberfläche (13b) der ersten Rolle (13) elastische Anordnungen (16, 17) aufweisen, welche die Abdichtung (15) in Richtung der Stirnfläche (14a) und in Richtung der zylindrischen Oberfläche beaufschlagen.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Lageranordnungen Rollwalzen (7, 26) oder Kugeln (9) sind, die im konkaven Rand (15a) der Abdichtung (15) eingesetzt sind sowie Rollwalzen (7, 26) oder Kugeln (9) sind, die in der Abdichtung (15) gegenüber der ebenen Stirnfläche (14a) der zweiten Rolle (14) eingesetzt sind.
EP90470030A 1989-05-29 1990-05-21 Vorrichtung zum Stranggiessen von flüssigem Metall zwischen zwei Zylindern Expired - Lifetime EP0401145B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90470030T ATE91245T1 (de) 1989-05-29 1990-05-21 Vorrichtung zum stranggiessen von fluessigem metall zwischen zwei zylindern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907011 1989-05-29
FR8907011A FR2647376B1 (fr) 1989-05-29 1989-05-29 Dispositif de coulee continue de metal liquide entre deux cylindres

Publications (2)

Publication Number Publication Date
EP0401145A1 EP0401145A1 (de) 1990-12-05
EP0401145B1 true EP0401145B1 (de) 1993-07-07

Family

ID=9382098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90470030A Expired - Lifetime EP0401145B1 (de) 1989-05-29 1990-05-21 Vorrichtung zum Stranggiessen von flüssigem Metall zwischen zwei Zylindern

Country Status (13)

Country Link
US (1) US5010948A (de)
EP (1) EP0401145B1 (de)
JP (1) JP2992055B2 (de)
KR (1) KR0181735B1 (de)
AT (1) ATE91245T1 (de)
AU (1) AU625185B2 (de)
BR (1) BR9002492A (de)
CA (1) CA2017637A1 (de)
DD (1) DD294644A5 (de)
DE (1) DE69002129T2 (de)
FR (1) FR2647376B1 (de)
RU (1) RU2013183C1 (de)
ZA (1) ZA904063B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652022B1 (fr) * 1989-06-26 1994-04-08 Irsid Cassette destinee a former une face de fermeture frontale d'un dispositif de coulee continue de metal liquide.
FR2727337B1 (fr) * 1994-11-30 1996-12-27 Usinor Sacilor Dispositif de support d'une face laterale d'une installation de coulee continue de bandes metalliques entre cylindres
AUPN743296A0 (en) * 1996-01-05 1996-02-01 Bhp Steel (Jla) Pty Limited Twin roll continuous caster
JP5837758B2 (ja) 2011-04-27 2015-12-24 キャストリップ・リミテッド・ライアビリティ・カンパニー 双ロール鋳造装置及びその制御方法
US10046384B2 (en) 2015-09-30 2018-08-14 Nucor Corporation Side dam with pocket
CN112676542A (zh) * 2020-12-14 2021-04-20 浙江英洛华磁业有限公司 一种自动调节间距的中间包装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH426115A (de) * 1965-02-02 1966-12-15 Alusuisse Verfahren zum Giessen von endlosen Metallsträngen auf einer Rotarymaschine und Rotarymaschine hierfür
JPS5950955A (ja) * 1982-09-14 1984-03-24 Mitsubishi Heavy Ind Ltd ドラム式連続鋳造装置
JPS60166149A (ja) * 1984-02-09 1985-08-29 Hitachi Ltd 連続鋳造機
JPS6233047A (ja) * 1985-08-05 1987-02-13 Nisshin Steel Co Ltd 双ドラム式連続鋳造機
FR2613646B1 (fr) * 1987-04-09 1991-02-01 Siderurgie Fse Inst Rech Dispositif d'obturation laterale pour lingotiere de coulee continue entre cylindres

Also Published As

Publication number Publication date
FR2647376A1 (fr) 1990-11-30
DE69002129D1 (de) 1993-08-12
ZA904063B (en) 1992-01-29
US5010948A (en) 1991-04-30
FR2647376B1 (fr) 1991-09-13
DD294644A5 (de) 1991-10-10
KR900017689A (ko) 1990-12-19
CA2017637A1 (fr) 1990-11-29
ATE91245T1 (de) 1993-07-15
JPH0313253A (ja) 1991-01-22
RU2013183C1 (ru) 1994-05-30
AU5605190A (en) 1990-11-29
JP2992055B2 (ja) 1999-12-20
KR0181735B1 (ko) 1999-04-01
BR9002492A (pt) 1991-11-12
AU625185B2 (en) 1992-07-02
DE69002129T2 (de) 1993-12-02
EP0401145A1 (de) 1990-12-05

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