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EP0102345B1 - Lingotière d'une installation de coulée continue - Google Patents

Lingotière d'une installation de coulée continue Download PDF

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Publication number
EP0102345B1
EP0102345B1 EP19830890103 EP83890103A EP0102345B1 EP 0102345 B1 EP0102345 B1 EP 0102345B1 EP 19830890103 EP19830890103 EP 19830890103 EP 83890103 A EP83890103 A EP 83890103A EP 0102345 B1 EP0102345 B1 EP 0102345B1
Authority
EP
European Patent Office
Prior art keywords
mold
side walls
supporting means
axis
fastened
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
Application number
EP19830890103
Other languages
German (de)
English (en)
Other versions
EP0102345A1 (fr
Inventor
Fritz Dipl.-Ing. Gränitz
Reinhard Hargassner
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.)
Voestalpine AG
Original Assignee
Voestalpine 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
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0102345A1 publication Critical patent/EP0102345A1/fr
Application granted granted Critical
Publication of EP0102345B1 publication Critical patent/EP0102345B1/fr
Expired 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1281—Vertical removing
    • 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
    • B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls

Definitions

  • the invention relates to a mold of a continuous casting installation, in particular a steel continuous casting installation for producing strands with a slab cross-sectional format, with mold side walls that can be adjusted to different strand dimensions and with support devices, such as casters, arranged below the mold, for supporting the strand emerging from the mold, these support devices using from above Her releasable holding means, such as tensioning screws, tie rods or the like, are attached to the mold and the holding means are inserted into the mold side walls and lead to the top of the mold side walls.
  • a mold of this type is known from AT-PS 343 838.
  • the casters of this known mold always have the correct position in relation to the mold side walls when the mold side walls are adjusted in size and, in the event of a strand break in order to remove the mold, can easily be removed from the top of the mold.
  • a brief interruption of the casting process or a brief reduction in the pulling speed leads to strand shrinkage, which causes a gap between the mold side walls and the strand shell. If normal casting operation is resumed after briefly interrupting the casting process or after reducing the pull-out speed, it can happen that steel melt escapes through this gap and runs off along the strand shell.
  • the castors' castors are particularly at risk because if the escaping steel melt has not yet solidified on the strand shell already formed up to the casters, damage to the casters, in particular welding of the casters, can occur.
  • the invention aims to avoid this difficulty and has as its object to develop a mold of the type described in such a way that damage to the support devices when steel melt escapes during a strand break or after a strand shrinkage is reliably avoided, but with the advantages of The known mold described above, namely the easy releasability of the support devices or the precise alignment of the support devices even after a format changeover, are retained.
  • This object is achieved in that the support devices on actuating devices for displacing the support devices are arranged approximately perpendicular to the axis of the mold and the actuating devices are fastened to the mold side walls by means of the holding means.
  • the support devices are articulated to the actuating devices, the axes of the articulated connections being in a plane perpendicular to the axis of the mold.
  • the positions of the support devices closest to the axis of the mold are advantageously limited by adjustable stops, inductive displacement transducers advantageously being built into the stops, which can compensate for any manufacturing inaccuracies when the support devices are aligned for the first time.
  • the installation of inductive displacement sensors makes it possible to track movements of the support device during the casting process.
  • the support devices are expediently fastened to the actuating devices with interposed interchangeable inserts. By exchanging the inserts, it is easily possible to take into account wear on the mold side walls.
  • the actuating devices are designed as pressure medium cylinders which are acted upon by springs in the direction of the axis of the mold and can be acted upon in the opposite direction by means of a pressure medium, as a result of which the support devices are always held in the foremost position supporting the strand shell even if the pressure medium fails .
  • the cavities penetrating the mold side walls are designed as slots which are open towards the outside of the mold.
  • FIG. 1 shows a plan view of a mold
  • Fig. 2 shows a section along the line 11-11 of Fig. 1.
  • FIG. 3 shows a further embodiment in a representation analogous to FIG. 2.
  • a plate mold 1 for casting steel strands with a slab cross-sectional format is formed by a frame-like water box 2, in which the mold side walls 3, 4 of the mold, etc. the narrow side walls 3 and the wide side walls 4 are used.
  • the mold side walls 3, 4 are supported on the water tank 2 and are adjustable relative to it for the purpose of format adjustment or for the purpose of changing the inclination.
  • For the narrow side walls 3 are used for adjustment Adjusting spindles 5.
  • the mold side walls 3, 4 are connected via pipes 6 to the water tank 2 for cooling purposes.
  • Each narrow side wall 3 is formed from a copper part 7 which comes into direct contact with the strand and is provided with internal cooling and which can be clamped to a support plate 8 supporting the copper part by means of lugs 9 and retaining clips 10.
  • the adjusting spindles 5 for adjusting the narrow side walls are each articulated on the rear side of the support plate 8.
  • the support devices which are designed as casters 11 in the illustrated embodiment and are arranged on the underside of the mold, are fastened to a holding plate 13 by means of roller holders 12, 12 '.
  • the casters 11 are designed on the one hand as rollers inserted between two brackets 12 or as rollers projecting over a central bracket 12 ', so that the strand shell is supported on its narrow sides over the entire width.
  • the holding plate 13 is horizontally displaceable by means of an adjusting device.
  • the holding plate 13 is articulated to the piston 14 of a pressure medium cylinder 15 which embodies the adjusting device, an interchangeable insert 17 of a certain thickness being provided between the joint 16 and the holding plate 13.
  • the axis 18 of the joint is aligned perpendicular to the axis 19 of the mold, so that the casters 11 can be adapted to the shape of the strand emerging from the cavity of the mold 1.
  • the piston 14 of the pressure medium cylinder 15 presses the casters 11 in the direction of the axis 19 of the mold 1 by means of disc springs 20, etc.
  • a hydraulic pressure medium entering the space 25 between the piston 14 and the cylinder part 26 is used to retract the piston 14 of the pressure medium cylinder 15.
  • the piston can be retracted until the holding plate comes into contact with a stop 27 which is also rigidly mounted on the pressure medium cylinder 15.
  • the pressure medium cylinder 15 is fastened to an angular bracket 28 which bears against the underside of the support plate 8 of the narrow side wall 3 and opposite it by means of an insert. 29 is aligned.
  • the bracket 28 is fastened to the narrow side wall 3 in each case by means of two clamping screws 30 arranged next to one another, which are inserted into cavities 32 leading up to the upper side 31 of the narrow side walls 3.
  • the lower nut 33 of each clamping screw is connected to the bracket 28 by a weld. With the upper nut 34, each of the clamping screws 30 can be tightened. In this process, twisting of the clamping screws 30 is prevented in each case by a tool acting on a square 35 provided at the upper end of each clamping screw.
  • the cavity 32 penetrates not only the support plate 8 of each narrow side wall 3, but also the copper part 7 provided on this support plate 8.
  • Each cavity 32 is designed in the region of the copper part 7 as a slot that is open towards the rear, so that the copper part 7 is removed from the support plate 8 can expand without having to remove one of the clamping screws 30 axially.
  • the space required for the actuating device 15 for moving the casters 11 is only very small, since this device is attached directly to the narrow side walls 3 of the mold 1, i.e. the space requirement is independent of the adjustment range within which the narrow side wall. 3 the mold 1 can be adjusted to change the format of the strand.
  • the mold 1 according to the invention is particularly suitable, in particular, for multiple continuous casting plants in which a closely adjacent arrangement of the molds lying next to one another is important.
  • the path 36 by which the casters 11 can be withdrawn is always the same size for each position of the narrow side wall 3.
  • the interchangeable insert 17 serves to take into account wear of the copper parts 7 of the narrow side walls 3, i.e. if the narrow side wall 3 is worn to a certain extent, the insert 17 is replaced by a correspondingly thinner insert.
  • the narrow side walls 3 are set to a new strand dimension, the casters 11 attached to them do not need to be readjusted. As a result, adjustment work is no longer necessary in the very narrow space below the mold. If, in the event of a strand break, it is no longer possible to pull the casters 11 back into a position at a distance from the extrusion shell, the mold 1 can be removed despite welding the casters 11 to the extrusion shell, etc. by loosening the clamping screws 30, whereupon the mold 1 can be lifted up out of the system.
  • the holding plate 13 carrying the casters 11 is articulated on a further plate 37, the axis 18 of the joint 16 extending parallel to the axes of the casters 11.
  • the plate 37 is pressed in the direction of the axis 19 of the mold 1 by means of two spring-loaded pistons 38 arranged one above the other.
  • Piston 38 spacer sleeves 39 used, the length of which depends on the foremost position of the casters 11.
  • the plate 37 is screwed to the pistons 38 by means of threaded bolts 40.
  • a hydraulic cylinder 41 is provided, with the aid of which the plate 37 and thus the casters 11 can be withdrawn from the position supporting the strand shell against the action of the plate springs 42, etc. are retractable until the annular surface 43 of the pistons 38 comes to rest on the opposite cover surface 44.
  • an insert 46 which can be exchanged for inserts having a different thickness.
  • a stop 48 is provided, which determines the foremost position of the spring-loaded pistons 38.
  • the holding plate 13 is adjustably fixed relative to the plate 37 by means of tension and compression screws 49, 50, as a result of which the inclination of the holding plate 13 relative to the plate 37 can be adjusted.
  • the invention is not limited to the exemplary embodiment shown, but can be modified in various ways.
  • the adjusting device 15 for the casters provided on the wide side walls 4 of the mold 1.
  • the actuating device itself can also be designed as a pressure medium cylinder which can be acted upon twice or as an adjusting spindle in addition to as a pressure medium cylinder 15 according to the exemplary embodiment.
  • the adjusting screws 22 are equipped with inductive displacement sensors, the displacement sensors being built into the adjusting screws. This makes it possible to register a movement of the holding plate 13 carrying the castors during the casting process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Claims (7)

1 - Lingotière (1) pour installation de coulée continue, notamment pour une installation de coulée continue d'acier destinée à la production de barres possédant un format de section de brames, comprenant des parois latérales de lingotière (3, 4) qui peuvent être réglées sur différentes dimensions de barres et des dispositifs de soutien, tels que des rouleaux de pied (11), disposés au-dessous de la lingotière (1) et servant à soutenir la barre qui sort de la lingotière (1), ces dispositifs de soutien (11) étant fixés à la lingotière (1) à l'aide de moyens de fixation tels que des vis de serrage (30), des tirants ou équivalents, que l'on peut ouvrir ou dévisser d'en haut, et les moyens de fixation (30) étant enfilés dans des cavités (32) qui traversent les parois latérales (3, 4) de la lingotière et se prolongent jusqu'au bord supérieur (31) des parois latérales de la lingotière, caractérisée en ce que les dispositifs de soutien (11) sont montés sur des dispositifs de réglage (16; 41) servant à déplacer les dispositifs de soutien (11) à peu près perpendiculairement à l'axe (18) de la lingotière (1) et en ce que les dispositifs de réglage (16; 41) sont fixés aux parois latérales (3,4) de la lingotière à l'aide des moyens de fixation (30).
2 - Lingotière selon la revendication 1, caractérisée en ce que les dispositifs de soutien (11) sont fixés aux dispositifs de réglage (15) par des liaisons articulées, les axes (18) des liaisons articulées (16) se trouvant dans un plan perpendiculaire à l'axe (18) de la lingotière (1) (figures 1 et 2).
3 - Lingotière selon l'une des revendications 1 et 2, caractérisée en ce que les positions des dispositifs de soutien (11) qui sont les plus rapprochées de l'axe (19) de la lingotière (1) sont limitées par des butées réglables (22, 23), des capteurs de course inductifs étant avantageusement incorporés dans les butées (22, 23).
4 - Lingotière selon les revendications 1 à 3, caractérisée en ce que les dispositifs de soutien (11) sont fixés aux dispositifs de réglage (15) avec interposition de cales interchangeables (17; 46).
5 - Lingotière selon les revendications 1 à 4, caractérisée en ce que les dispositifs de réglage (15) sont constitués par des cylindres à fluide sous pression qui sont sollicités par des ressorts (20) dans le sens allant vers l'axe (19) de la lingotière (1) et qui peuvent être sollicités dans le sens inverse au moyen d'un fluide sous pression.
6 - Lingotière selon les revendications 1 à 6, caractérisée en ce que les cavités (32) qui traversent les parois latérales (3, 4) de la lingotière sont constituées par des fentes qui débouchent sur la face externe de la lingotière.
7 - Lingotière selon l'une des revendications 1 et 6, caractérisée en ce qu'une plaque (13) qui porte les dispositifs de réglage (11) est montée par une liaison articulée sur une autre plaque (37), laquelle autre plaque (37) peut être, d'une part, poussée jusqu'à la position des dispositifs de réglage (11) qui est la plus rapprochée de l'axe (19) de la lingotière (1) à l'aide d'au moins un piston (38) sollicité par ressorts et, d'autre part, rétractée à partir de cette position à l'aide d'au moins un cylindre à fluide sous pression (41) (figure 3).
EP19830890103 1982-07-22 1983-06-23 Lingotière d'une installation de coulée continue Expired EP0102345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2849/82 1982-07-22
AT0284982A AT373801B (de) 1982-07-22 1982-07-22 Kokille einer stranggiessanlage

Publications (2)

Publication Number Publication Date
EP0102345A1 EP0102345A1 (fr) 1984-03-07
EP0102345B1 true EP0102345B1 (fr) 1986-01-15

Family

ID=3541270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830890103 Expired EP0102345B1 (fr) 1982-07-22 1983-06-23 Lingotière d'une installation de coulée continue

Country Status (4)

Country Link
EP (1) EP0102345B1 (fr)
JP (1) JPS5924553A (fr)
AT (1) AT373801B (fr)
DE (1) DE3361845D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021209262A1 (de) 2021-08-24 2023-03-02 Sms Group Gmbh Stranggießanlage zum Herstellen von metallischen Strängen

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226153A (ja) * 1985-03-29 1986-10-08 Sumitomo Heavy Ind Ltd 連続鋳造機における鋳片短辺側支持装置
US4669526A (en) * 1985-06-20 1987-06-02 Sms Concast Inc. Remotely adjustable continuous casting mold
JPH0197827A (ja) * 1987-07-08 1989-04-17 Ricoh Co Ltd 半導体拡散型力覚センサ
IT1248137B (it) * 1991-03-05 1995-01-05 Danieli Off Mecc Lingottiera con funzioni multiple
US5850871A (en) * 1996-04-04 1998-12-22 Ag Industries, Inc. Foot guide and control system for continuous casting machine
DE19958489A1 (de) * 1999-12-04 2001-06-21 Dupont Performance Coatings Verfahren und Vorrichtung zur Scherbelastung flüssiger Medien, insbesondere Überzugsmittel
AT3953U3 (de) * 2000-06-02 2001-04-25 Voest Alpine Ind Anlagen Strangführungselement und strangführungssegment mit integriertem strangführungselement
AT508791A1 (de) 2009-09-29 2011-04-15 Siemens Vai Metals Tech Gmbh Stützanordnung einer stranggiessanlage
CN103433445A (zh) * 2013-08-30 2013-12-11 鞍钢股份有限公司 一种板坯连铸机结晶器窄面足辊的快速接弧方法
CN120421471B (zh) * 2025-07-09 2025-09-19 江苏华杰不锈钢制品有限公司 一种不锈钢制品连续铸造成型装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU419372B1 (en) * 1966-03-07 1971-12-01 Guiding device for ingots in secondary cooling zone in continuous casting plants
DE1288758B (de) * 1966-10-26 1969-02-06 Mannesmann Ag Anordnung einer oszillierenden Stranggiesskokille
CH461713A (de) * 1967-03-22 1968-08-31 Concast Ag Vorrichtung zum Stützen eines Stranges in Stranggiessanlagen
BE754771A (fr) * 1969-08-19 1971-01-18 Mannesmann Ag Appareil pour la coulee continue de barres d'acier rectangulaires
US3967362A (en) * 1975-07-14 1976-07-06 United States Steel Corporation Continuous caster alignment method
AT343838B (de) * 1976-08-05 1978-06-26 Voest Ag Kokille in einer stranggiessanlage
AT358213B (de) * 1978-08-04 1980-08-25 Voest Alpine Ag Strangfuehrung fuer stranggiessanlagen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021209262A1 (de) 2021-08-24 2023-03-02 Sms Group Gmbh Stranggießanlage zum Herstellen von metallischen Strängen

Also Published As

Publication number Publication date
ATA284982A (de) 1983-07-15
AT373801B (de) 1984-02-27
EP0102345A1 (fr) 1984-03-07
JPS5924553A (ja) 1984-02-08
DE3361845D1 (en) 1986-02-27

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