EP0914888A1 - Continuous casting mould - Google Patents

Continuous casting mould Download PDF

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Publication number
EP0914888A1
EP0914888A1 EP98120153A EP98120153A EP0914888A1 EP 0914888 A1 EP0914888 A1 EP 0914888A1 EP 98120153 A EP98120153 A EP 98120153A EP 98120153 A EP98120153 A EP 98120153A EP 0914888 A1 EP0914888 A1 EP 0914888A1
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EP
European Patent Office
Prior art keywords
hydraulic cylinder
continuous casting
casting mold
narrow side
hydraulic
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.)
Granted
Application number
EP98120153A
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German (de)
French (fr)
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EP0914888B1 (en
Inventor
Heinrich Dipl.-Ing. Scholz
Klaus-Peter Dipl.-Ing. Eberwein
Axel Dipl.-Ing. Weyer
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SMS Siemag AG
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SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP0914888A1 publication Critical patent/EP0914888A1/en
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    • 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
    • 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
    • B22D11/168—Controlling or regulating processes or operations for adjusting the mould size or mould taper

Definitions

  • the present invention relates to a continuous casting mold with two opposite narrow sides and two opposite, the long sides spanning the narrow sides, wherein at least one of the narrow sides by an adjusting member on the other of the narrow sides is movable to or away from it.
  • Such a mold is e.g. known from EP 0 613 743 A1.
  • the narrow side of this mold is electromotive driven spindle and a gear adjusted, with a releasable coupling the angle of inclination of the narrow side can be adjusted can.
  • the continuous casting mold of the prior art is still not quite optimal than between the electric motor drive and several mechanical elements are arranged on the narrow side. This causes higher costs on the one hand, and increased maintenance requirements on the other.
  • the object of the present invention is therefore a Continuous casting mold to provide a higher Setting accuracy is achievable.
  • the object is achieved in that the adjusting member as two hydraulic cylinder units that can be operated independently of one another one cylinder each and one relative to the cylinder in an adjustment direction adjustable piston is formed.
  • hydraulic cylinder units and the narrow side via separable Couplings can be connected together as needed individual parts of the continuous casting mold, e.g. a single narrow side, be replaced without replacing the entire continuous casting mold to have to.
  • the couplings preferably have a coupling play of less than 0.3 mm on, e.g. only 0.1 mm.
  • Such a small clutch play can be achieved in that the couplings each have two coupling halves exist that the hydraulic cylinder units and the narrow side one coupling half each is assigned to the coupling halves are screwed together along a dome surface and that the dome surface the adjustment direction in a different from 90 ° Angle cuts.
  • the position of the narrow side can not adjust by itself. If the sprags are also spring loaded is an adjustment of the pistons - or corresponding with this the narrow side - only possible if the sprags are released by the hydraulic pressure. If the electrical fails Power supply or the hydraulic fluid becomes the narrow side therefore automatically locked in their current position.
  • a continuous casting mold has two opposite one another Narrow sides 1 and two opposite one another Long sides 2 on.
  • the long sides 2 overlap the narrow sides 1.
  • both narrow sides 1 are through Adjustment elements 3 movable towards or away from each other. In principle, however, it is also sufficient if only one of the narrow sides is adjustable.
  • the adjusting member 3 is one Narrow side 1 of two independently operable two Hydraulic cylinder units 4.
  • Each hydraulic cylinder unit 4 has a cylinder 5 and a piston 6 which in the casting direction x seen are arranged one above the other.
  • the hydraulic cylinder units 4 are over with the narrow side 1 separable couplings 7 connected.
  • Each of the clutches 7 consists of two coupling halves 8, 9, one each of the narrow side 1 and the associated hydraulic cylinder unit 4 is assigned.
  • the coupling halves can be seen along a dome surface connected to each other, which is the adjustment direction y of the hydraulic cylinder unit 4 intersects at an angle ⁇ different from 90 °.
  • the connection is Dome surfaces 10 are preferably designed as screw connections.
  • the hydraulic cylinder units 4 are also spring-loaded clamping bodies 11 assigned. By means of this clamping body 11, the Pistons 6 can be locked relative to the cylinders 5. The narrow side 1 can therefore not of when the clamp body 11 is actuated adjust yourself. Due to the spring loading of the clamping body 11 lock the clamping body 11 automatically when the electrical Power supply to the hydraulic cylinder units 4 fails or if e.g. due to a defective hose the hydraulic pressure suddenly falls off.
  • On the Hydraulic pressure can be determined, for example, as deformable is just cast strand, which is in the continuous casting mold located.
  • the pressures detected by the pressure sensors 12 are Position control loops 13 supplied as correction variables. As actual sizes these control loops 13 are the signals from linear position sensors 14 supplied, by means of which the position of the piston 6 relative to the cylinders 5 is detected. Linear position encoder for hydraulic cylinders are known per se, so that a detailed description of this Point is unnecessary.
  • the position control loops 13 is furthermore a setpoint is supplied to the higher-level controller. From the The position control loops determine the difference between the target size and the actual size 13 then taking into account the corresponding Hydraulic cylinder 4 prevailing pressure as a correction quantity Adjustment signal.
  • the adjustment signal is a hydraulic pump 15 supplied, by means of which the corresponding hydraulic cylinder unit 4 can be actuated.
  • the positions of the pistons 6 are relative by the linear displacement sensors 14 to their corresponding cylinders 5 detectable.
  • the relative The piston 6 can be adjusted directly by the linear displacement sensor 14 are detected.
  • To make this relative adjustment in an absolute To be able to convert adjustment of the narrow side 1 is still a Reference point required.
  • To calibrate the position control for the narrow side therefore becomes the narrow side 1 before continuous casting moved away from the other narrow side 1 until it stops 16 triggers. These stops 16 represent the continuous casting mold fixed reference points. Taking into account the on reaching of the stops 16 pending signals of the linear encoder 14 the signals subsequently transmitted by the linear position sensors 14 converted into an absolute adjustment path for the narrow side 1 become. The position control of the narrow side 1 can therefore on this Way be calibrated.
  • the position control loops 13 on the narrow side 1 also the detected pressures of the other position control circuit 13 of the Narrow side 1 fed. From the difference or the ratio of the Pressures to each other can then be detected whether the narrow side adjustment correct is. If, for example, the ratio of the one in Fig. 2 upper pressure sensor 12 pressure detected by the in Fig. 1 lower pressure sensor 12 detected pressure between 1: 1 and 3: 1 there is no change in the angle of attack ⁇ . However, will If the ratio exceeds 3: 1, the angle of attack ⁇ is increased, until the ratio of the pressures reaches 2: 1. Becomes conversely, the value falls below 1: 1, the angle of attack ⁇ reduced until the pressure ratio is 2: 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Actuator (AREA)
  • Led Devices (AREA)

Abstract

The positional adjustment of each narrow side mold wall takes place using two independently operable hydraulic cylinder units (4) with cylinders (5) and pistons (6).

Description

Die vorliegende Erfindung betrifft eine Stranggießkokille mit zwei einander gegenüberliegenden Schmalseiten und zwei einander gegenüberliegenden, die Schmalseiten übergreifenden Längsseiten, wobei mindestens eine der Schmalseiten durch ein Verstellorgan auf die andere der Schmalseiten zu bzw. von ihr weg bewegbar ist.The present invention relates to a continuous casting mold with two opposite narrow sides and two opposite, the long sides spanning the narrow sides, wherein at least one of the narrow sides by an adjusting member on the other of the narrow sides is movable to or away from it.

Eine derartige Kokille ist z.B. aus der EP 0 613 743 A1 bekannt. Bei dieser Kokille wird die Schmalseite über eine elektromotorisch angetriebene Spindel und ein Getriebe verstellt, wobei über eine lösbare Kupplung der Neigungswinkel der Schmalseite verstellt werden kann.Such a mold is e.g. known from EP 0 613 743 A1. The narrow side of this mold is electromotive driven spindle and a gear adjusted, with a releasable coupling the angle of inclination of the narrow side can be adjusted can.

Die Stranggießkokille des Standes der Technik ist insofern noch nicht ganz optimal, als zwischen dem elektromotorischen Antrieb und der Schmalseite mehrere mechanische Elemente angeordnet sind. Dies verursacht zum einen höhere Kosten, zum anderen erhöhten Wartungsbedarf. Darüber hinaus ist die Einstellgenauigkeit der Kokillenschmalseite durch die Summe der Spiele der dazwischenliegenden Einheiten (Kupplungen, Getriebe usw.) begrenzt.In this respect, the continuous casting mold of the prior art is still not quite optimal than between the electric motor drive and several mechanical elements are arranged on the narrow side. This causes higher costs on the one hand, and increased maintenance requirements on the other. In addition, the adjustment accuracy of the mold narrow side by the sum of the games in between Units (couplings, gears, etc.) limited.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Stranggießkokille zur Verfügung zu stellen, bei der eine höhere Einstellgenauigkeit erreichbar ist.The object of the present invention is therefore a Continuous casting mold to provide a higher Setting accuracy is achievable.

Die Aufgabe wird dadurch gelöst, daß das Verstellorgan als zwei unabhängig voneinander betätigbare Hydraulikzylindereinheiten mit je einem Zylinder und einem relativ zum Zylinder in einer Verstellrichtung verstellbaren Kolben ausgebildet ist. The object is achieved in that the adjusting member as two hydraulic cylinder units that can be operated independently of one another one cylinder each and one relative to the cylinder in an adjustment direction adjustable piston is formed.

Wenn die Hydraulikzylindereinheiten und die Schmalseite über trennbare Kupplungen miteinander verbunden sind, können nach Bedarf einzelne Teile der Stranggießkokille, z.B. eine einzelne Schmalseite, ausgewechselt werden, ohne die gesamte Stranggießkokille austauschen zu müssen.If the hydraulic cylinder units and the narrow side via separable Couplings can be connected together as needed individual parts of the continuous casting mold, e.g. a single narrow side, be replaced without replacing the entire continuous casting mold to have to.

Die Kupplungen weisen vorzugsweise ein Kupplungsspiel unter 0,3 mm auf, z.B. nur 0,1 mm. Ein derart geringes Kupplungsspiel kann dadurch erreicht werden, daß die Kupplungen aus je zwei Kupplungshälften bestehen, daß den Hydraulikzylindereinheiten und der Schmalseite je eine Kupplungshälfte zugeordnet ist, daß die Kupplungshälften entlang einer Kuppelfläche miteinander verschraubt sind und daß die Kuppelfläche die Verstellrichtung in einem von 90° verschiedenen Winkel schneidet.The couplings preferably have a coupling play of less than 0.3 mm on, e.g. only 0.1 mm. Such a small clutch play can can be achieved in that the couplings each have two coupling halves exist that the hydraulic cylinder units and the narrow side one coupling half each is assigned to the coupling halves are screwed together along a dome surface and that the dome surface the adjustment direction in a different from 90 ° Angle cuts.

Wenn den Hydraulikzylindereinheiten Klemmkörper zum Arretieren der Kolben zugeordnet sind, kann sich die Lage der Schmalseite nicht von selbst verstellen. Wenn die Klemmkörper darüber hinaus federbelastet sind, ist eine Verstellung der Kolben - bzw. hiermit korrespondierend der Schmalseite - nur möglich, wenn die Klemmkörper durch den Hydraulikdruck gelöst sind. Bei Ausfall der elektrischen Energieversorgung oder der Hydraulikflüssigkeit wird die Schmalseite daher automatisch in ihrer momentanen Position arretiert.If the hydraulic cylinder units clamp body to lock the Pistons are assigned, the position of the narrow side can not adjust by itself. If the sprags are also spring loaded is an adjustment of the pistons - or corresponding with this the narrow side - only possible if the sprags are released by the hydraulic pressure. If the electrical fails Power supply or the hydraulic fluid becomes the narrow side therefore automatically locked in their current position.

Wenn den Hydraulikzylindereinheiten Drucksensoren zum Erfassen der in den Hydraulikzylindereinheiten herrschenden Hydraulikdrücke zugeordnet sind, ist eine direkte Lastüberwachung der Stranggießkokille möglich.When the hydraulic cylinder units pressure sensors for detecting the hydraulic pressures prevailing in the hydraulic cylinder units direct load monitoring of the continuous casting mold possible.

Weitere Vorteile und Einzelheiten ergeben sich aus den weiteren Ansprüchen sowie aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Dabei zeigen

Figur 1
eine Stranggießkokille von oben und
Figur 2
eine Schmalseite mit Verstellorgan.
Further advantages and details emerge from the further claims and from the following description of an exemplary embodiment. Show
Figure 1
a continuous casting mold from above and
Figure 2
a narrow side with adjusting element.

Gemäß Fig. 1 weist eine Stranggießkokille zwei einander gegenüberliegende Schmalseiten 1 sowie zwei einander gegenüberliegende Längsseiten 2 auf. Die Längsseiten 2 übergreifen dabei die Schmalseiten 1. Gemäß Ausführungsbeispiel sind beide Schmalseiten 1 durch Verstellorgane 3 aufeinander zu bzw. voneinander weg bewegbar. Prinzipiell ist aber auch hinreichend, wenn nur eine der Schmalseiten verstellbar ist.1, a continuous casting mold has two opposite one another Narrow sides 1 and two opposite one another Long sides 2 on. The long sides 2 overlap the narrow sides 1. According to the embodiment, both narrow sides 1 are through Adjustment elements 3 movable towards or away from each other. In principle, however, it is also sufficient if only one of the narrow sides is adjustable.

Wie aus Fig. 2 ersichtlich ist, besteht das Verstellorgan 3 einer Schmalseite 1 aus zwei unabhängig voneinander betätigbaren zwei Hydraulikzylindereinheiten 4. Jede Hydraulikzylindereinheit 4 weist einen Zylinder 5 und einen Kolben 6 auf, die in Gießrichtung x gesehen übereinander angeordnet sind.As can be seen from Fig. 2, the adjusting member 3 is one Narrow side 1 of two independently operable two Hydraulic cylinder units 4. Each hydraulic cylinder unit 4 has a cylinder 5 and a piston 6 which in the casting direction x seen are arranged one above the other.

Die Hydraulikyzlindereinheiten 4 sind mit der Schmalseite 1 über trennbare Kupplungen 7 verbunden. Jede der Kupplungen 7 besteht aus je zwei Kupplungshälften 8, 9, von denen je eine der Schmalseite 1 und der zugehörigen Hydraulikyzlindereinheit 4 zugeordnet ist. Ersichtlich sind die Kupplungshälften entlang einer Kuppelfläche miteinander verbunden, welche die Verstellrichtung y der Hydraulikzylindereinheit 4 in einem von 90° verschiedenen Winkel α schneidet. Um die Kupplungen 7 trennbar zu halten, ist die Verbindung der Kuppelflächen 10 vorzugsweise als Verschraubung ausgebildet. Mit dieser obenstehend beschriebenen Ausbildung der Kupplungen 7 kann das Kupplungsspiel auf 0,1 mm reduziert werden.The hydraulic cylinder units 4 are over with the narrow side 1 separable couplings 7 connected. Each of the clutches 7 consists of two coupling halves 8, 9, one each of the narrow side 1 and the associated hydraulic cylinder unit 4 is assigned. The coupling halves can be seen along a dome surface connected to each other, which is the adjustment direction y of the hydraulic cylinder unit 4 intersects at an angle α different from 90 °. In order to keep the couplings 7 separable, the connection is Dome surfaces 10 are preferably designed as screw connections. With this embodiment of the couplings 7 described above can the clutch play can be reduced to 0.1 mm.

Den Hydraulikzylindereinheiten 4 sind ferner federbelastete Klemmkörper 11 zugeordnet. Mittels dieser Klemmkörper 11 können die Kolben 6 relativ zu den Zylindern 5 arretiert werden. Die Schmalseite 1 kann sich daher bei betätigtem Klemmkörper 11 nicht von selbst verstellen. Aufgrund der Federbelastung der Klemmkörper 11 arretieren die Klemmkörper 11 selbsttätig, wenn die elektrische Energieversorgung der Hydraulikzylindereinheiten 4 ausfällt oder wenn z.B. aufgrund eines defekten Schlauches der Hydraulikdruck plötzlich abfällt.The hydraulic cylinder units 4 are also spring-loaded clamping bodies 11 assigned. By means of this clamping body 11, the Pistons 6 can be locked relative to the cylinders 5. The narrow side 1 can therefore not of when the clamp body 11 is actuated adjust yourself. Due to the spring loading of the clamping body 11 lock the clamping body 11 automatically when the electrical Power supply to the hydraulic cylinder units 4 fails or if e.g. due to a defective hose the hydraulic pressure suddenly falls off.

Wie ferner aus Fig. 2 ersichtlich ist, sind den Hydraulikzylindereinheiten 4 Drucksensoren 12 zum Erfassen der in den Hydraulikzylindereinheiten 4 herrschenden Hydraulikdrücke zugeordnet. Über den Hydraulikdruck kann bspw. ermittelt werden, wie verformbar ein gerade gegossener Strang ist, der sich in der Stranggießkokille befindet. Die durch die Drucksensoren 12 erfaßten Drücke werden Positionsregelkreisen 13 als Korrekturgrößen zugeführt. Als Istgrößen werden diesen Regelkreisen 13 die Signale von Linearweggebern 14 zugeführt, mittels derer die Stellung der Kolben 6 relativ zu den Zylindern 5 erfaßt wird. Linearweggeber für Hydraulikzylinder sind an sich bekannt, so daß eine eingehende Schilderung an dieser Stelle entbehrlich ist.As can also be seen from FIG. 2, the hydraulic cylinder units 4 pressure sensors 12 for detecting in the hydraulic cylinder units 4 prevailing hydraulic pressures assigned. On the Hydraulic pressure can be determined, for example, as deformable is just cast strand, which is in the continuous casting mold located. The pressures detected by the pressure sensors 12 are Position control loops 13 supplied as correction variables. As actual sizes these control loops 13 are the signals from linear position sensors 14 supplied, by means of which the position of the piston 6 relative to the cylinders 5 is detected. Linear position encoder for hydraulic cylinders are known per se, so that a detailed description of this Point is unnecessary.

Den Positionsregelkreisen 13 wird ferner von einer nicht dargestellten, übergeordneten Steuerung eine Sollgröße zugeführt. Aus der Differenz von Sollgröße und Istgröße ermitteln die Positionsregelkreise 13 dann unter Berücksichtigung des in dem entsprechenden Hydraulikzylinder 4 herrschenden Druckes als Korrekturgröße ein Verstellsignal. Das Verstellsignal wird einer Hydraulikpumpe 15 zugeführt, mittels derer die korrespondierende Hydraulikzylindereinheit 4 betätigbar ist.The position control loops 13 is furthermore a setpoint is supplied to the higher-level controller. From the The position control loops determine the difference between the target size and the actual size 13 then taking into account the corresponding Hydraulic cylinder 4 prevailing pressure as a correction quantity Adjustment signal. The adjustment signal is a hydraulic pump 15 supplied, by means of which the corresponding hydraulic cylinder unit 4 can be actuated.

Durch die Linearweggeber 14 sind die Positionen der Kolben 6 relativ zu ihren korrespondierenden Zylindern 5 erfaßbar. Der relative Verstellweg der Kolben 6 kann also direkt durch die Linearweggeber 14 erfaßt werden. Um diese relative Verstellung in eine absolute Verstellung der Schmalseite 1 umrechnen zu können, ist noch ein Bezugspunkt erforderlich. Zum Kalibrieren der Positionsregelung für die Schmalseite wird die Schmalseite 1 daher vor einem Stranggießen von der anderen Schmalseite 1 weg bewegt, bis sie an Anschlägen 16 anstößt. Diese Anschläge 16 stellen bezüglich der Stranggießkokille feste Bezugspunkte dar. Unter Berücksichtigung des bei Erreichen der Anschläge 16 anstehenden Signale der Linearweggeber 14 können die danach von den Linearweggebern 14 übermittelten Signale daher in einen absoluten Verstellweg für die Schmalseite 1 umgerechnet werden. Die Lageregelung der Schmalseite 1 kann daher auf diese Weise kalibriert werden.The positions of the pistons 6 are relative by the linear displacement sensors 14 to their corresponding cylinders 5 detectable. The relative The piston 6 can be adjusted directly by the linear displacement sensor 14 are detected. To make this relative adjustment in an absolute To be able to convert adjustment of the narrow side 1 is still a Reference point required. To calibrate the position control for the narrow side therefore becomes the narrow side 1 before continuous casting moved away from the other narrow side 1 until it stops 16 triggers. These stops 16 represent the continuous casting mold fixed reference points. Taking into account the on reaching of the stops 16 pending signals of the linear encoder 14 the signals subsequently transmitted by the linear position sensors 14 converted into an absolute adjustment path for the narrow side 1 become. The position control of the narrow side 1 can therefore on this Way be calibrated.

Mit der nunmehr bestehenden Möglichkeit, aufgrund des erfaßbaren Hydraulikdruckes die Verstellkräfte berechnen zu können, kann nunmehr auch die Schmalseitenanstellung im Gießbetrieb optimiert werden. Hierzu werden den Positionsregelkreisen 13 der Schmalseite 1 auch die erfaßten Drücke des anderen Positionsregelkreises 13 der Schmalseite 1 zugeführt. Aus der Differenz oder dem Verhältnis der Drücke zueinander kann dann erfaßt werden, ob die Schmalseitenanstellung korrekt ist. Wenn bspw. das Verhältnis des von dem in Fig. 2 oberen Drucksensor 12 erfaßten Druckes zu dem durch den in Fig. 1 unteren Drucksensor 12 erfaßten Druck zwischen 1:1 und 3:1 liegt, erfolgt keine Änderung des Anstellwinkels β. Wird hingegen das Verhältnis 3:1 überschritten, wird der Anstellwinkel β vergrößert, bis das Verhältnis der Drücke den Wert 2:1 erreicht. Wird umgekehrt der Wert 1:1 unterschritten, wird der Anstellwinkel β verkleinert, bis das Druckverhältnis 2:1 beträgt. With the now existing possibility, due to the detectable Hydraulic pressure to be able to calculate the adjustment forces now the narrow side adjustment in the casting operation has also been optimized become. For this purpose, the position control loops 13 on the narrow side 1 also the detected pressures of the other position control circuit 13 of the Narrow side 1 fed. From the difference or the ratio of the Pressures to each other can then be detected whether the narrow side adjustment correct is. If, for example, the ratio of the one in Fig. 2 upper pressure sensor 12 pressure detected by the in Fig. 1 lower pressure sensor 12 detected pressure between 1: 1 and 3: 1 there is no change in the angle of attack β. However, will If the ratio exceeds 3: 1, the angle of attack β is increased, until the ratio of the pressures reaches 2: 1. Becomes conversely, the value falls below 1: 1, the angle of attack β reduced until the pressure ratio is 2: 1.

BezugszeichenlisteReference list

11
SchmalseitenNarrow sides
22nd
LängsseitenLong sides
33rd
VerstellorganeAdjusting elements
44th
HydraulikzylindereinheitenHydraulic cylinder units
55
Zylindercylinder
66
Kolbenpiston
77
KupplungenCouplings
8, 98, 9
KupplungshälftenCoupling halves
1010th
KuppelflächeDome surface
1111
KlemmkörperSprags
1212th
DrucksensorenPressure sensors
1313
PositionsregelkreisePosition control loops
1414
LinearweggeberLinear position encoder
1515
HydraulikpumpenHydraulic pumps
1616
Anschlägeattacks
xx
GießrichtungPouring direction
yy
VerstellrichtungDirection of adjustment
α, βα, β
Winkelangle

Claims (13)

Stranggießkokille mit zwei einander gegenüberliegenden Schmalseiten (1) und zwei einander gegenüberliegenden, die Schmalseiten (1) übergreifenden Längsseiten (2), wobei mindestens eine der Schmalseiten (1) durch ein Verstellorgan (3) auf die andere der Schmalseiten (1) zu bzw. von ihr weg bewegbar ist,
dadurch gekennzeichnet, daß das Verstellorgan (3) als zwei unabhängig voneinander betätigbare Hydraulikzylindereinheiten (4) mit je einem Zylinder (5) und einem relativ zum Zylinder (5) in einer Verstellrichtung (y) verstellbaren Kolben (6) ausgebildet ist. Continuous casting mold with two opposing narrow sides (1) and two opposing longitudinal sides (2) overlapping the narrow sides (1), at least one of the narrow sides (1) being moved to the other of the narrow sides (1) by an adjusting member (3). can be moved away from it,
characterized, that the adjusting member (3) is designed as two independently operable hydraulic cylinder units (4), each with a cylinder (5) and a piston (6) adjustable relative to the cylinder (5) in an adjusting direction (y). Stranggießkokille nach Anspruch 1,
dadurch gekennzeichnet, daß die Hydraulikzylindereinheiten (4) in Gießrichtung (x) gesehen übereinander angeordnet sind. Continuous casting mold according to claim 1,
characterized, that the hydraulic cylinder units (4) are arranged one above the other in the casting direction (x). Stranggießkokille nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Hydraulikzylindereinheiten (4) und die Schmalseite (1) über trennbare Kupplungen (7) miteinander verbunden sind. Continuous casting mold according to claim 1 or 2,
characterized, that the hydraulic cylinder units (4) and the narrow side (1) are connected to one another via separable couplings (7). Stranggießkokille nach Anspruch 3,
dadurch gekennzeichnet, daß die Kupplungen (7) ein Kupplungsspiel unter 0,3 mm aufweisen. Continuous casting mold according to claim 3,
characterized, that the couplings (7) have a coupling play less than 0.3 mm. Stranggießkokille nach Anspruch 3 oder 4,
dadurch gekennzeichnet, daß die Kupplungen (7) aus je zwei Kupplungshälften (8, 9) bestehen, daß den Hydraulikzylindereinheiten (4) und der Schmalseite (1) je eine Kupplungshälfte (8, 9) zugeordnet ist, daß die Kupplungshälften (8, 9) jeder Kupplung (7) entlang einer Kuppelfläche (10) miteinander verschraubt sind und daß die Kuppelfläche (10) die Verstellrichtung (y) in einem von 90° verschiedenen Winkel (α) schneidet. Continuous casting mold according to claim 3 or 4,
characterized, that the couplings (7) each consist of two coupling halves (8, 9), that the hydraulic cylinder units (4) and the narrow side (1) are each assigned a coupling half (8, 9), that the coupling halves (8, 9) of each coupling (7) are screwed together along a coupling surface (10) and that the coupling surface (10) intersects the adjustment direction (y) at an angle (α) different from 90 °. Stranggießkokille nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß den Hydraulikzylindereinheiten (4) Klemmkörper (11) zum Arretieren der Kolben (6) zugeordnet sind. Continuous casting mold according to one of claims 1 to 5,
characterized, that the hydraulic cylinder units (4) are associated with clamping bodies (11) for locking the pistons (6). Stranggießkokille nach Anspruch 6,
dadurch gekennzeichnet, daß die Klemmkörper (11) federbelastet sind. Continuous casting mold according to claim 6,
characterized, that the clamping body (11) are spring-loaded. Stranggießkokille nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß den Hydraulikzylindereinheiten (4) Drucksensoren (12) zum Erfassen der in den Hydraulikzylindereinheiten (4) herrschenden Hydraulikdrücke zugeordnet sind. Continuous casting mold according to one of claims 1 to 7,
characterized, that the hydraulic cylinder units (4) are assigned pressure sensors (12) for detecting the hydraulic pressures prevailing in the hydraulic cylinder units (4). Stranggießkokille nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß den Hydraulikzylindereinheiten (4) Linearweggeber (14) zur Erfassung der Stellung der Kolben (6) relativ zu den Zylindern (5) zugeordnet sind. Continuous casting mold according to one of claims 1 to 8,
characterized, that the hydraulic cylinder units (4) are assigned to linear position sensors (14) for detecting the position of the pistons (6) relative to the cylinders (5). Betriebsverfahren für eine Stranggießkokille mit Schmalseiten (1), wobei mindestens eine Schmalseite (1) durch mindestens eine Hydraulikzylindereinheit (4) mit einem Zylinder (5) und einem Kolben (6) verstellt wird, wobei die Position des Kolbens (6) relativ zum Zylinder (5) durch einen der Hydraulikzylindereinheit (4) zugeordneten Linearweggeber (14) erfaßt wird und einem Positionsregelkreis (13) zum Betätigen einer Hydraulikpumpe (15) für die Hydraulikzylindereinheit (4) zugeführt wird.Operating method for a continuous casting mold with narrow sides (1), whereby at least one narrow side (1) by at least a hydraulic cylinder unit (4) with a cylinder (5) and a piston (6) is adjusted, the position of the piston (6) relative to the cylinder (5) by one of the hydraulic cylinder unit (4) associated linear displacement sensor (14) is detected and a position control loop (13) for actuating a hydraulic pump (15) for the hydraulic cylinder unit (4) is supplied. Betriebsverfahren nach Anspruch 10,
dadurch gekennzeichnet, daß der in der Hydraulikflüssigkeit herrschende Druck erfaßt und dem Positionsregelkreis (13) als Korrekturgröße zugeführt wird. Operating method according to claim 10,
characterized, that the pressure prevailing in the hydraulic fluid is detected and fed to the position control loop (13) as a correction variable. Betriebsverfahren nach Anspruch 10 oder 11,
dadurch gekennzeichnet, daß die mindestens eine Schmalseite (1) auch durch eine zweite Hydraulikzylindereinheit (4) verstellt wird, daß der in der zweiten Hydraulikzylindereinheit (4) herrschende Hydraulikdruck erfaßt wird und dem Positionsregelkreis (13) der ersten Hydraulikzylindereinheit (4) als Korrekturgröße zugeführt wird. Operating method according to claim 10 or 11,
characterized, that the at least one narrow side (1) is also adjusted by a second hydraulic cylinder unit (4), that the hydraulic pressure prevailing in the second hydraulic cylinder unit (4) is detected and fed to the position control circuit (13) of the first hydraulic cylinder unit (4) as a correction variable. Betriebsverfahren für eine Stranggießkokille mit mindestens einer durch ein Verstellorgan (3) - vorzugsweise durch mindestens eine Hydraulikzylindereinheit (4) - verstellbaren Schmalseite (1),
dadurch gekennzeichnet, daß zur Lageregelung der Verstellweg des Verstellorgans (3, 6) durch einen Linearweggeber (14) erfaßt wird und daß zum Kalibrieren der Lageregelung die Schmalseite (1) zunächst zu einem bezüglich der Stranggießkokille festen Punkt, (16), z. B. einem Anschlag (16), verfahren und dann die vom Linearweggeber (14) übermittelten Signale unter Berücksichtigung des bei Erreichen des festen Punktes (16) anstehenden Signals in einen absoluten Verstellweg für die Schmalseite (1) umgerechnet werden. Operating method for a continuous casting mold with at least one narrow side (1) adjustable by an adjusting member (3) - preferably by at least one hydraulic cylinder unit (4),
characterized, that for adjusting the position of the adjusting member (3, 6) is detected by a linear encoder (14) and that for calibrating the position control, the narrow side (1) first to a fixed point with respect to the continuous casting mold, (16), z. B. a stop (16), move and then the signals transmitted by the linear position sensor (14) are converted into an absolute adjustment path for the narrow side (1) taking into account the signal present when the fixed point (16) is reached.
EP98120153A 1997-10-31 1998-10-27 Continuous casting mould Expired - Lifetime EP0914888B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748305A DE19748305A1 (en) 1997-10-31 1997-10-31 Continuous casting mold
DE19748305 1997-10-31

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Publication Number Publication Date
EP0914888A1 true EP0914888A1 (en) 1999-05-12
EP0914888B1 EP0914888B1 (en) 2004-08-25

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EP98120153A Expired - Lifetime EP0914888B1 (en) 1997-10-31 1998-10-27 Continuous casting mould

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US (1) US6142212A (en)
EP (1) EP0914888B1 (en)
JP (1) JP4745473B2 (en)
CN (1) CN1083306C (en)
AT (1) ATE274387T1 (en)
DE (2) DE19748305A1 (en)
ES (1) ES2226052T3 (en)

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EP1486273A1 (en) * 2003-06-14 2004-12-15 SMS Demag Aktiengesellschaft Continuous casting mould with adjusting device for the copper plates enclosing the casting cavity
WO2006042603A1 (en) * 2004-10-13 2006-04-27 Siemens Vai Metals Technologies Gmbh & Co Method for prolonging the serviceable life of the broad side walls of a mold
CN102601328A (en) * 2012-03-23 2012-07-25 中冶南方工程技术有限公司 Multistep method for online adjusting width decrease of crystallizer rapidly
WO2018055038A1 (en) * 2016-09-26 2018-03-29 Primetals Technologies Austria GmbH Controlling the narrow-side conicity of a continuous casting mould: method and device
EP3623075A3 (en) * 2018-09-11 2020-05-13 SMS Group GmbH Adjusting device for the narrow side of a continuous casting mould and method for adjusting the narrow side of a continuous casting mould

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DE102004058355A1 (en) * 2004-12-03 2006-06-14 Sms Demag Ag Continuous casting machine with a continuous casting mold for the casting of liquid metals, in particular of steel materials
KR101152678B1 (en) * 2005-03-10 2012-06-15 에스엠에스 지마크 악티엔게젤샤프트 Method for producing a continuous casting mold and corresponding continuous casting mold
CN100344395C (en) * 2005-07-28 2007-10-24 西安重型机械研究所 Hydraulic system of crystallizer full hydraulic clamping
US8020605B2 (en) * 2007-01-26 2011-09-20 Nucor Corporation Continuous steel slab caster and methods using same
US8770014B2 (en) * 2007-03-13 2014-07-08 GM Global Technology Operations LLC System for detecting hydraulic fluid leaks
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CN102266921B (en) * 2011-08-15 2013-06-19 中冶南方工程技术有限公司 Method for regulating conicity change under resistance to widening of continuous casting crystallizer on line
CN102266920B (en) * 2011-08-15 2013-06-19 中冶南方工程技术有限公司 Method for changing conical degree at moment of obstructing process of on-line width reduction of continuous casting crystallizer
CN104785743A (en) * 2014-01-22 2015-07-22 宝钢不锈钢有限公司 Method for controlling ferritic stainless steel tail billet width
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Publication number Priority date Publication date Assignee Title
EP1486273A1 (en) * 2003-06-14 2004-12-15 SMS Demag Aktiengesellschaft Continuous casting mould with adjusting device for the copper plates enclosing the casting cavity
WO2006042603A1 (en) * 2004-10-13 2006-04-27 Siemens Vai Metals Technologies Gmbh & Co Method for prolonging the serviceable life of the broad side walls of a mold
CN102601328A (en) * 2012-03-23 2012-07-25 中冶南方工程技术有限公司 Multistep method for online adjusting width decrease of crystallizer rapidly
CN102601328B (en) * 2012-03-23 2013-11-20 中冶南方工程技术有限公司 Multistep method for online adjusting width decrease of crystallizer rapidly
WO2018055038A1 (en) * 2016-09-26 2018-03-29 Primetals Technologies Austria GmbH Controlling the narrow-side conicity of a continuous casting mould: method and device
AT519154A1 (en) * 2016-09-26 2018-04-15 Primetals Technologies Austria GmbH Regulation of the narrow-side conicity of a continuous casting mold
AT519154B1 (en) * 2016-09-26 2019-12-15 Primetals Technologies Austria GmbH Regulation of the narrow side taper of a continuous casting mold
EP3623075A3 (en) * 2018-09-11 2020-05-13 SMS Group GmbH Adjusting device for the narrow side of a continuous casting mould and method for adjusting the narrow side of a continuous casting mould

Also Published As

Publication number Publication date
CN1083306C (en) 2002-04-24
DE19748305A1 (en) 1999-05-06
ATE274387T1 (en) 2004-09-15
JPH11207443A (en) 1999-08-03
EP0914888B1 (en) 2004-08-25
JP4745473B2 (en) 2011-08-10
DE59811862D1 (en) 2004-09-30
CN1219448A (en) 1999-06-16
US6142212A (en) 2000-11-07
ES2226052T3 (en) 2005-03-16

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