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EP0064490B1 - Dispositif pour aligner deux unités de guidage voisines dans la direction de coulée, dans une installation de coulée continue - Google Patents

Dispositif pour aligner deux unités de guidage voisines dans la direction de coulée, dans une installation de coulée continue Download PDF

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Publication number
EP0064490B1
EP0064490B1 EP19820890055 EP82890055A EP0064490B1 EP 0064490 B1 EP0064490 B1 EP 0064490B1 EP 19820890055 EP19820890055 EP 19820890055 EP 82890055 A EP82890055 A EP 82890055A EP 0064490 B1 EP0064490 B1 EP 0064490B1
Authority
EP
European Patent Office
Prior art keywords
mold
strand guide
arrangement according
strand
centering
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
EP19820890055
Other languages
German (de)
English (en)
Other versions
EP0064490A1 (fr
Inventor
Aktiengesellschaft Voest-Alpine
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 EP0064490A1 publication Critical patent/EP0064490A1/fr
Application granted granted Critical
Publication of EP0064490B1 publication Critical patent/EP0064490B1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls

Definitions

  • the invention relates to a device for aligning two strand guide sections of a continuous casting plant, which are adjacent in the strand passage direction, in particular for aligning the mold to the bending zone with at least two opposite, rigid centering plates which are adjacent to the guideways and can be pressed apart by means of spreading devices.
  • the precise guidance of a cast strand is of great importance, e.g. especially in that part of the continuous caster in which the strand still has a very thin strand shell.
  • the strand guide is composed of strand guide sections adjacent in the strand passage direction, there is a risk that if adjacent strand guide sections are not aligned, the strand will be deformed at the transition points from one strand guide section to the next section, which may result in the strand shell being overstressed. This can cause the shell to tear open and metal melt to flow out.
  • the strand guide sections had to be measured precisely using their own measuring devices, for example rulers, etc., readjusted according to the measurement result and then measured again, which is cumbersome and time-consuming.
  • a device of the type described in the opening paragraph is known from CH-A-518 758. After introduction into the mold, this known device is brought into contact with the mold walls by means of a spreading device via positioning and adjusting pieces. The rolls of the strand guide are then brought up to further adjusting pieces of the device which are arranged at the end of the device which projects into the strand guide part following the mold. This known device thus requires precise adjustment, which is cumbersome.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to provide a device for a continuous casting installation for automatically aligning two adjacent strand guide sections, which also makes it unnecessary to measure the position of the strand guide sections.
  • centering plates can be pressed against the guideways of the two adjacent strand guide sections to form a rigid support which connects the strand guide sections.
  • spreading devices are expediently provided both on the parts projecting into a strand guide section and on the parts of the centering plates reaching into the adjacent strand guide section.
  • one of the centering plates is divided into two parts, so that one part is assigned to one strand guide section and the other part to the adjacent strand guide section, both parts of the divided centering plate being able to be pressed against the guideways of the strand guide sections by means of separate spreading devices from the opposite one-part centering plate.
  • the opposing centering plates are expediently articulated to one another by means of articulated brackets.
  • the centering device In order to ensure a secure hold of the centering device, it extends over at least three adjacent rollers of each strand guide section.
  • it extends over the castors' castors and over at least three rolls of the bending zone following the mold.
  • the centering device For easy insertion and removal of the centering device, it is provided with a device which can be hung on the upper side of the mold.
  • the mold on the bending zone is guided in the direction transverse to the axis of the continuous web by means of supporting surfaces having a low coefficient of friction and can be clamped on a lifting table by means of bearing surfaces having a high coefficient of friction, as a result of which the setting of the mold relative to the bending zone is easy and safe as well as fixing the mold can be reliably carried out on the lifting table.
  • FIG. 1 shows a section through a strand guide frame of a continuous casting installation in a schematic illustration
  • FIG. 2 shows a section along the line 11-11 of FIG. 1.
  • 3 illustrates a plan view of the mold with the cover plate lifted off.
  • a mold 1 is supported on a frame-shaped lifting table 3 by means of laterally projecting support straps 2. Casters 4 form a unit with the mold 1 and oscillate with it.
  • the lifting table 3 is set in vibration during the casting by an oscillation drive, not shown.
  • the cast strand emerging from the mold 1 in a straight form is deflected into a circular path by the part 6 of the strand guide which adjoins the mold and which contains bending rollers 5.
  • This strand guide part 6, hereinafter called the bending zone is arranged in a support frame 7, the supports 8, 8 'of which extend to the upper edge 9 of the mold 1.
  • the support frame 7 is mounted on a stationary steel frame 10 via hooks 11, into which an upper cross member 12 of the support frame 7 engages.
  • Each hook 11 can be precisely adjusted with washers 13, which can be inserted under its vertical and horizontal bearing surface on the steel frame 10, so that the support frame 7 with the bending zone 6 is exactly connected to a subsequent one, shown in FIG. 1 with dashed lines Strand guide part 14 can be aligned.
  • a lower cross member 15 on the side of the hook 11 of the support frame 7 lies against the steel frame 10 without play.
  • the support frame 7 is, as can be seen from FIGS. 1 and 2, arranged on all sides with play 16, 16 ' within the frame-shaped lifting table 3 and can with a schematically illustrated lifting device 17 with hooks not shown, which in recesses 18 of the vertical supports 8, 8 'of the supporting frame can be used, can be removed vertically upwards through the lifting table 3.
  • the vertical supports 8, 8 ' have horizontal support surfaces 19, which are opposed to support surfaces 20 of the mold 1 with a play 21 which enables the mold to oscillate. As soon as the supporting frame 7 is raised, the support surfaces 20 of the mold 1 come into contact with those of the supports 8, 8 '. When the support frame is raised further, the mold 1 is also lifted.
  • Each quick release device 22 is used to clamp the mold 1 on the lifting table 3, two of which are arranged on one side of the mold.
  • Each quick release device has two bushes 24, 25 provided with a helical sliding surface 23, of which one bush 24 is vertically displaceably and non-rotatably mounted in the lifting table 3, whereas the second bush 25 can be rotated about the axis 26 of the first bush by means of a pressure medium cylinder 27 is.
  • the non-rotatable bushing 24 is rigidly connected to a tie rod 28 which projects vertically upwards through the cover plate 29 of the lifting table 3 and further through one of the laterally projecting support straps 2 of the mold 1.
  • a recess 30 is provided, into which an insert 31 can be inserted, which insert 31 engages over the carrying tab of the mold.
  • the contact surfaces 32 of all support brackets 2 on the upper side of the lifting table 3 have a high friction factor, so that the mold is reliably fixed by means of the rotatable bushes 25 after the tie rods 28 have been tightened.
  • the helical sliding surfaces 23 of the sleeves 24, 25 have an angle of inclination which is smaller than the associated friction angle, so that after the sleeves have been tightened, the pressure medium cylinders 27 which hold the sleeves no longer have to be pressurized.
  • two rotatable bushings arranged on one side of the mold are connected via levers 33 by means of a single pressure medium cylinder 27.
  • the support surfaces 19 and 20 have a low friction factor, so that it is possible to move the mold 1 relative to the bending zone 6 when the mold is seated on the support frame 7 of the bending zone 6.
  • a centering device 34 is used to align the mold 1 with respect to the bending zone 6 and can be hung on the upper side of the mold by means of guide rods 35 and a transverse plate 36 attached to them.
  • the centering device 34 itself has on one side a rigid centering plate 37 which can come into contact with the three casters 4 or the three first rollers 5 of the bending zone 6.
  • this rigid centering plate 37 there is provided a further centering plate 38 of two parts, the upper part 38 'of which can come into contact with the castors 4 of the mold and the lower part 38' 'of which can come into contact with the first three rolls 5 of the bending zone 6.
  • a pressure medium cylinder 39 formed spreading devices the centering plates 37, 38 can be pressed against the guideways, ie against the rollers 4 and 5 forming these guideways.
  • the lower part 38 ′′ of the divided centering plate 38 can be pressed against the rollers 5 by means of four pressure medium cylinders 39, two of which are arranged on one side, whereas the upper part 38 ′ of this guide plate 38 can only be pressed two pressure medium cylinders 39 can be pressed against the castors 4 of the mold 1.
  • the centering plates are articulated to one another by means of articulated brackets 40.
  • the function of the device is as follows: In order to align the mold 1 in alignment with the bending zone 6, the centering device 34 is threaded through the mold after the mold has been placed on the bending zone (here the support surfaces 19, 20 come into contact with one another), the spreading devices 39 are relaxed. By acting on the spreading devices - in this case, the spreading devices 39 of the lower part 38 "of the centering plate 38 and then the spreading devices of the upper part 38 'of the centering plate 38 are acted upon - the mold 1 is slid by sliding the support surfaces 20 transversely to the axis 41 of the continuous track and in a position aligned with the bending zone 6. The mold and the bending zone are then inserted together into the continuous casting installation and the bending zone is fastened to the steel frame 10.
  • the mold with its four support straps 2 comes into contact with the lifting table 3, after which the Quick-clamping device, after inserting the insert pieces 31 into the recesses 30 of the tie rods 28, the mold 1 is fastened to the lifting table 3.
  • the support surfaces 19 and 20 come out of contact, so that the mold 1 is opposite the bending zone 6 Can oscillate in the direction of the axis 41 of the strand path
  • the expansion devices 39 of the centering devices 34 are relaxed and the centering device is removed from the top of the system.
  • the centering device 34 can also be used to center the new mold used in the system with respect to the bending zone.
  • the invention is not limited to the exemplary embodiment shown, but can be modified in various ways, for example, it is possible to form the two-part centering plate 38 in one piece.
  • the number of spreading devices 39 between the centering plates 37, 38 can also be chosen as desired. It is only important to ensure that the centering device 34 can be securely clamped in the guideways, so that the centering device acts after tensioning as a rigid carrier connecting the strand guide sections.
  • the device according to the invention can be used not only between the mold 1 and the bending zone 6, but also between subsequent adjacent strand guide sections, provided the strand guide sections are displaceable transversely to the strand path axis and can be fixed in their correct position after being displaced.
  • the centering device can also be used for arc molds, the rigid centering plates being matched to the arc shape of the mold side walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (8)

1. Dispositif pour aligner deux segments (1, 6) du couloir de barre d'une installation de coulée continue qui sont adjacents dans la direction du défilement de la barre, en particulier pour l'alignement de la lingotière (1) par rapport à la zone de cintrage (6), comprenant au moins deux plaques de centrage rigides (37, 38), qui se font face mutuellement, et qui entrent en contact avec les voies de guidage de segments adjacents (1, 6) du couloir de barre, et qui peuvent être écartées au moyen de dispositifs d'écartement (39), caractérisé en ce que les plaques de centrage (38, 39) peuvent être pressées contre les voies de guidage de deux segments adjacents (1, 6) du couloir de barre, en formant un support rigide qui relie les segments du couloir de barre.
2. Dispositif selon la revendication 1, caractérisé en ce que des dispositifs d'écartement (39) sont prévus aussi bien sur les parties (37, 38") des plaques de centrage qui sont engagées dans un segment (6) du couloir de barre que sur les parties (37, 38') de ces plaques de centrage qui sont engagées dans le segment adjacent (1) du couloir de barre.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'une (38) des plaques de centrage est divisée en deux parties, de manière qu'une partie (38") soit associée à l'un (6) des segments du couloir de barre et que l'autre partie (38') soit associée au segment adjacent (1) du couloir de barre, les deux parties (38', 38") de la plaque de centrage divisée (38) pouvant être pressées contre les voies de guidage des segments (1, 6) du couloir de barre au moyen de leurs propres dispositifs d'écartement (39) en prenant appui sur la plaque de centrage opposée en une seule pièce (37).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les plaques de centrage (37, 38) qui sont opposées l'une à l'autre sont articulées l'une sur l'autre au moyen de biellettes d'articulation (40).
5. Dispositif selon les revendications 1 à 4, caractérisé en ce qu'il s'étend sur au moins trois rouleaux (4, 5) adjacents de chaque segment (1, 6) du couloir de barre.
6. Dispositif selon les revendications 1 à 5, caractérisé en ce qu'il s'étend sur les rouleaux de pied (4) de la lingotière (1) et sur au moins trois rouleaux (5) de la zone de cintrage (6) qui fait suite à la lingotière.
7. Dispositif selon la revendication 6, caractérisé en ce qu'il est muni d'un dispositif (35, 36) pouvant être accroché à la face supérieure de la lingotière.
8. Dispositif selon les revendications 1 à 7, caractérisé en ce que la lingotière (1) est guidée sur la zone de cintrage (6) dans la direction transversale à l'axe (41) du passage de la barre au moyen de surfaces d'appui (19, 20) présentant de faibles coefficients de frottement et peut être bloquée sur une plate-forme mobile (3) au moyen de surfaces de portée (32) présentant un grand coefficient de frottement.
EP19820890055 1981-04-30 1982-04-19 Dispositif pour aligner deux unités de guidage voisines dans la direction de coulée, dans une installation de coulée continue Expired EP0064490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT193381A AT370018B (de) 1981-04-30 1981-04-30 Einrichtung zum fluchtenden einstellen zweier in strangdurchlaufrichtung benachbarter strangfuehrungsabschnitte einer stranggiessanlage
AT1933/81 1981-04-30

Publications (2)

Publication Number Publication Date
EP0064490A1 EP0064490A1 (fr) 1982-11-10
EP0064490B1 true EP0064490B1 (fr) 1984-07-11

Family

ID=3524157

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82890056A Withdrawn EP0064491A1 (fr) 1981-04-30 1982-04-19 Dispositif pour fixer une coquille sur une table élévatrice
EP19820890055 Expired EP0064490B1 (fr) 1981-04-30 1982-04-19 Dispositif pour aligner deux unités de guidage voisines dans la direction de coulée, dans une installation de coulée continue

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP82890056A Withdrawn EP0064491A1 (fr) 1981-04-30 1982-04-19 Dispositif pour fixer une coquille sur une table élévatrice

Country Status (4)

Country Link
EP (2) EP0064491A1 (fr)
JP (2) JPS57184556A (fr)
AT (1) AT370018B (fr)
DE (1) DE3260357D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651802A (en) * 1985-04-04 1987-03-24 United States Steel Corporation Attachment for connecting endwall mold face to continuous caster mold support
AT404808B (de) * 1996-05-20 1999-03-25 Voest Alpine Ind Anlagen Stranggiessanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381743A (en) * 1964-10-15 1968-05-07 United States Steel Corp Quick-change mounting for water-cooled mold
FR1584235A (fr) * 1968-01-11 1969-12-19
CH518758A (de) * 1970-12-08 1972-02-15 Concast Ag Verfahren und Vorrichtung zum Justieren einer Strangführung auf die unmittelbar vorgeordnete Stranggiesskokille
US3823761A (en) * 1973-05-07 1974-07-16 United States Steel Corp Quick release mechanism for continuous casting mold support frame
JPS5311224Y2 (fr) * 1973-10-24 1978-03-27
AT340623B (de) * 1976-01-16 1977-12-27 Voest Alpine Montan Ag Stranggiessanlage mit einer durchlaufkokille
US4090304A (en) * 1977-03-11 1978-05-23 United States Steel Corporation Gauge for aligning the mold of a continuous-casting machine with a guide roll-rack

Also Published As

Publication number Publication date
EP0064491A1 (fr) 1982-11-10
AT370018B (de) 1983-02-25
DE3260357D1 (en) 1984-08-16
ATA193381A (de) 1982-07-15
JPS57184566A (en) 1982-11-13
EP0064490A1 (fr) 1982-11-10
JPS57184556A (en) 1982-11-13

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