EP0914888B1 - Continuous casting mould - Google Patents
Continuous casting mould Download PDFInfo
- Publication number
- EP0914888B1 EP0914888B1 EP98120153A EP98120153A EP0914888B1 EP 0914888 B1 EP0914888 B1 EP 0914888B1 EP 98120153 A EP98120153 A EP 98120153A EP 98120153 A EP98120153 A EP 98120153A EP 0914888 B1 EP0914888 B1 EP 0914888B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic cylinder
- continuous casting
- casting mould
- 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.)
- Expired - Lifetime
Links
- 238000009749 continuous casting Methods 0.000 title claims description 20
- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 238000005266 casting Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 4
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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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
- 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 one another Narrow sides and two opposite sides, the narrow sides overlapping long sides, at least one of the narrow sides movable to or away from the other side of the Schmais by an adjusting member is and wherein the adjusting member as two independently operable Hydraulic cylinder units with one cylinder and one relative to the cylinder piston is formed in an adjustment direction.
- Such a mold is e.g. known from EP 0 613 743 A1. With this mold the narrow side is driven by an electromotive spindle and a Gear adjusted, the inclination angle of the Narrow side can be adjusted.
- the continuous casting mold of the prior art is not quite optimal in this respect, than several between the electric motor drive and the narrow side mechanical elements are arranged. On the one hand, this causes higher costs, on the other hand, increased maintenance requirements. In addition, the setting accuracy the mold narrow side by the sum of the games of the intermediate one Units (couplings, gears, etc.) limited.
- a casting device is known from JP-A-59 174 251, in which a Narrow side of the mold via hydraulic cylinder units with one cylinder each is adjustable relative to this adjustable piston.
- the object of the present invention is therefore a continuous casting mold to be available in which a higher setting accuracy can be achieved is.
- the hydraulic cylinder units have pressure sensors for detecting the hydraulic pressures prevailing in the hydraulic cylinder units are assigned to the hydraulic cylinder units linear displacement are assigned to detect the position of the pistons relative to the cylinders, that signals from linear position sensors, signals from pressure sensors and signals from a higher-level controller is fed to a position control loop, which a hydraulic pump an adjustment signal for actuating the hydraulic cylinder units supplies.
- the couplings preferably have a coupling clearance below 0.3 mm, e.g. only 0.1 mm.
- a small clutch play can be achieved that the couplings consist of two coupling halves each, that the hydraulic cylinder units and one coupling half is assigned to the narrow side, that the coupling halves are screwed together along a coupling surface are and that the dome surface of the adjusting device in a different from 90 ° Angle cuts.
- the position of the narrow side cannot change automatically. If the sprags are also spring-loaded, the adjustment is Piston - or correspondingly the narrow side - only possible if the Clamping bodies are loosened by the hydraulic pressure. If the electrical fails The narrow side is therefore automatically supplied with energy or hydraulic fluid 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 with the narrow side 1 over separable couplings 7 connected.
- Each of the clutches 7 consists of two coupling halves 8, 9, one of which is on 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 °.
- 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 are 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 clamp body 11 lock the clamp 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 are 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 Adjustment path of the piston 6 can thus directly through the linear position sensor 14 are detected.
- To make this relative adjustment in an absolute To be able to convert the adjustment of the narrow side 1 is still a Reference point required.
- To calibrate the position control for the narrow side becomes the narrow side 1 before continuous casting moved away from the other narrow side 1 until it stops at stops 16 abuts. 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 can 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. For example, if the ratio of the one in Fig. 2 upper pressure sensor 12 detected pressure 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 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
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 Schmaiseiten zu bzw. von ihr weg bewegbar ist und wobei 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 present invention relates to a continuous casting mold with two opposite one another Narrow sides and two opposite sides, the narrow sides overlapping long sides, at least one of the narrow sides movable to or away from the other side of the Schmais by an adjusting member is and wherein the adjusting member as two independently operable Hydraulic cylinder units with one cylinder and one relative to the cylinder piston is formed in an adjustment direction.
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. With this mold the narrow side is driven by an electromotive spindle and a Gear adjusted, the inclination angle of the Narrow side can be adjusted.
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. The continuous casting mold of the prior art is not quite optimal in this respect, than several between the electric motor drive and the narrow side mechanical elements are arranged. On the one hand, this causes higher costs, on the other hand, increased maintenance requirements. In addition, the setting accuracy the mold narrow side by the sum of the games of the intermediate one Units (couplings, gears, etc.) limited.
Aus der JP - A - 59 174 251 ist eine Gießeinrichtung bekannt, bei der eine Schmalseite der Kokille über Hydraulikzylindereinheiten mit je einem Zylinder und einem relativ zu diesem verstellbaren Kolben verstellbar ist.A casting device is known from JP-A-59 174 251, in which a Narrow side of the mold via hydraulic cylinder units with one cylinder each is adjustable relative to this adjustable piston.
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 be available in which a higher setting accuracy can be achieved is.
Die Aufgabe wird dadurch gelöst, dass den Hydraulikzylindereinheiten Drucksensoren zum Erfassen der in den Hydraulikzylindereinheiten herrschenden Hydraulikdrücke zugeordnet sind, dass den Hydraulikzylindereinheiten Linearweggeber zur Erfassung der Stellung der Kolben relativ zu den Zylindern zugeordnet sind, dass Signale von Linearweggeber, Signale von Drucksensoren und Signale von einer übergeordneten Steuerung einem Positionsregelkreis zugeführt werden, welcher einer Hydraulikpumpe ein Verstellsignal zur Betätigung der Hydraulikzylindereinheiten zuführt.The object is achieved in that the hydraulic cylinder units have pressure sensors for detecting the hydraulic pressures prevailing in the hydraulic cylinder units are assigned to the hydraulic cylinder units linear displacement are assigned to detect the position of the pistons relative to the cylinders, that signals from linear position sensors, signals from pressure sensors and signals from a higher-level controller is fed to a position control loop, which a hydraulic pump an adjustment signal for actuating the hydraulic cylinder units supplies.
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 are interconnected, individual parts of the Continuous casting mold, e.g. a single narrow side, can be replaced without having to replace the entire continuous casting mold.
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 Verstelleinrichtung in einem von 90° verschiedenen Winkel schneidet. The couplings preferably have a coupling clearance below 0.3 mm, e.g. only 0.1 mm. Such a small clutch play can be achieved that the couplings consist of two coupling halves each, that the hydraulic cylinder units and one coupling half is assigned to the narrow side, that the coupling halves are screwed together along a coupling surface are and that the dome surface of the adjusting device 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 for locking the pistons are assigned, the position of the narrow side cannot change automatically. If the sprags are also spring-loaded, the adjustment is Piston - or correspondingly the narrow side - only possible if the Clamping bodies are loosened by the hydraulic pressure. If the electrical fails The narrow side is therefore automatically supplied with energy or hydraulic fluid locked in their current position.
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.
- 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
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
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
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
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
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
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
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, based on 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
- 11
- Schmalseitennarrow sides
- 22
- Längsseitenlong sides
- 33
- Verstellorganeadjusting members
- 44
- HydraulikzylindereinheitenHydraulic cylinder units
- 55
- Zylindercylinder
- 66
- Kolbenpiston
- 77
- Kupplungenclutches
- 8, 98, 9
- Kupplungshälftencoupling halves
- 1010
- Kuppelflächedome surface
- 1111
- Klemmkörperclamping bodies
- 1212
- Drucksensorenpressure sensors
- 1313
- PositionsregelkreisePosition loops
- 1414
- Linearweggeberlinear travel
- 1515
- Hydraulikpumpenhydraulic pumps
- 1616
- Anschlägeattacks
- xx
- Gießrichtungcasting
- yy
- Verstellrichtungadjustment
- α, βα, β
- Winkelangle
Claims (11)
- Continuous casting mould with two mutually opposite narrow sides (1) and two mutually opposite long sides (2) engaging over the narrow sides (1), wherein at least one of the narrow sides (1) is movable by an adjusting element (3) towards and away from the other of the narrow sides (1) and wherein the adjusting element (3) is constructed as two mutually independently actuable hydraulic cylinder units (4) each with a respective cylinder (5) and a piston (6) adjustable relative to the cylinder (5) in an adjusting direction (y), characterised in that pressure sensors (12) for detecting the hydraulic pressures prevailing in the hydraulic cylinder units (4) are associated with the hydraulic cylinder units (4), linear travel transmitters (14) for detecting the setting of the pistons (6) relative to the cylinders (5) are associated with the hydraulic cylinder units (4) and signals from linear travel transmitters (14), signals from pressure sensors (12) and signals from a superordinate control are fed to a position regulating circuit (13) which feeds to a hydraulic pump (15) an adjustment signal for actuation of the hydraulic cylinder units (4).
- Continuous casting mould according to claim 1, characterised in that the hydraulic cylinder units (4) are arranged one above the other as seen in casting direction (x).
- Continuous casting mould according to claim 1 or 2, characterised in that the hydraulic cylinder units (4) and the narrow side (1) are connected together by way of separable couplings (7).
- Continuous casting mould according to claim 3, characterised in that the couplings (7) have a coupling play below 0.3 millimetres.
- Continuous casting mould according to claim 3 or 4, characterised in that the couplings (7) each consist of two coupling halves (8, 9), that a respective coupling half (8, 9) is associated with each of the hydraulic cylinder units (4) and the narrow side (1), 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 adjusting direction (y) at an angle (α) differing from 90°.
- Continuous casting mould according to one of claims 1 to 5, characterised in that clamping bodies (11) for locking the pistons (6) are associated with the hydraulic cylinder units (4).
- Continuous casting mould according to claim 6, characterised in that the clamping bodies (11) are spring-loaded.
- Operating method for a continuous casting mould with narrow sides (1), wherein at least one narrow side (1) is adjusted by at least one hydraulic cylinder unit (4) with a cylinder (5) and a piston, characterised in that the pressure prevailing in the hydraulic fluid and the position of the piston (6) relative to the cylinder (5) are detected by a linear travel transmitter (14) associated with the hydraulic cylinder unit (4) and fed to a position regulating circuit (13) for actuating a hydraulic pump (15) for the hydraulic cylinder unit (4).
- Operating method according to claim 8, characterised in that the at least one narrow side (1) is also adjusted by a second hydraulic cylinder unit (4) and that the hydraulic pressure prevailing in the second hydraulic cylinder unit (4) is detected and is fed to the position regulating circuit (13) of the first hydraulic cylinder unit (4) as a correction magnitude.
- Operating method according to claim 8, characterised in that for position regulation the adjusting travel of the adjusting element (3, 6) is detected by a linear travel transmitter (14) and that for calibration of the position regulation the narrow side (1) is initially moved to a point (16), for example an abutment (16), fixed with respect to the continuous casting mould and then the signals transmitted by the linear travel transmitter (14) are converted, with consideration of the signal arising on attainment of the fixed point (16), into an absolute adjustment travel for the narrow side (1).
- Operating method according to claim 10, characterised in that the narrow side (1) is adjusted by at least one hydraulic cylinder unit (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19748305 | 1997-10-31 | ||
| DE19748305A DE19748305A1 (en) | 1997-10-31 | 1997-10-31 | Continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0914888A1 EP0914888A1 (en) | 1999-05-12 |
| EP0914888B1 true EP0914888B1 (en) | 2004-08-25 |
Family
ID=7847310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98120153A Expired - Lifetime EP0914888B1 (en) | 1997-10-31 | 1998-10-27 | Continuous casting mould |
Country Status (7)
| Country | Link |
|---|---|
| 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007039882A1 (en) | 2007-04-26 | 2008-11-06 | Sms Demag Ag | continuous casting |
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|---|---|---|---|---|
| AT408322B (en) * | 1999-01-15 | 2001-10-25 | Voest Alpine Ind Anlagen | CONTINUOUS CHOCOLATE |
| FR2825038B1 (en) * | 2001-05-28 | 2003-08-15 | Usinor | SLAB CONTINUOUSLY CASTING LINGOTIERE WITH ADJUSTABLE WIDTH, AND CASTING METHOD USING THE SAME |
| KR100526861B1 (en) * | 2001-10-17 | 2005-11-08 | 주식회사 포스코 | Apparatus for correcting the installing angle of the mold in the continuous casting |
| DE10326903A1 (en) * | 2003-06-14 | 2004-12-30 | Sms Demag Ag | Hydraulic narrow side adjustment for slabs and thin slab caster |
| AT500814B1 (en) * | 2004-10-13 | 2006-11-15 | Voest Alpine Ind Anlagen | METHOD FOR INCREASING THE LIFE OF THE WIDE-SIDED WALLS OF AN ADJUSTING COCKILLE |
| 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 |
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| DE102007016045A1 (en) * | 2007-03-30 | 2008-10-02 | Sms Demag Ag | Device for the hydraulic adjustment of components |
| 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 |
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| 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 |
| 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 |
| CN105127384A (en) * | 2015-09-08 | 2015-12-09 | 安徽天大铜业有限公司 | Casting crystallizer stop block |
| AT519154B1 (en) * | 2016-09-26 | 2019-12-15 | Primetals Technologies Austria GmbH | Regulation of the narrow side taper of a continuous casting mold |
| DE102018215424A1 (en) | 2018-09-11 | 2020-03-12 | Sms Group Gmbh | Adjustment device for the narrow side of a continuous casting mold, and method for adjusting a narrow side of a continuous casting mold |
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| JPS5847937B2 (en) * | 1978-03-31 | 1983-10-25 | 新日本製鐵株式会社 | Variable radius mold for continuous casting |
| FR2442091A1 (en) * | 1978-11-22 | 1980-06-20 | Fives Cail Babcock | Mould for continuous casting of slabs - where narrow mould walls are mounted on work cylinders so they can be moved inwards or outwards to vary the width of the slab |
| JPS5813439A (en) * | 1981-07-13 | 1983-01-25 | Nippon Steel Corp | Continuous casting method |
| EP0101521B1 (en) * | 1982-02-24 | 1986-11-05 | Kawasaki Steel Corporation | Method of controlling continuous casting facility |
| JPS5973161A (en) * | 1982-10-20 | 1984-04-25 | Nippon Steel Corp | Continuous casting method of steel |
| JPS5985350A (en) * | 1982-11-05 | 1984-05-17 | Nippon Steel Corp | Continuous casting installation |
| DE3247207A1 (en) * | 1982-12-21 | 1984-07-05 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | METHOD AND DEVICE FOR ADJUSTING THE CONICITY OF NARROW-SIDED WALLS OF CONTINUOUS CASTING CHILLERS |
| JPS59174251A (en) * | 1983-03-18 | 1984-10-02 | Sumitomo Heavy Ind Ltd | Driving device for short side of mold for continuous casting installation |
| JPS6033855A (en) * | 1983-08-05 | 1985-02-21 | Nippon Steel Corp | Continuous casting method with variable width |
| AU551521B2 (en) * | 1983-08-11 | 1986-05-01 | Nippon Steel Corporation | Method for reducing or widening mould width during continuous casting |
| JPH03138060A (en) * | 1989-10-23 | 1991-06-12 | Yaskawa Electric Mfg Co Ltd | Apparatus for controlling variable mold width |
| JP3072115B2 (en) * | 1990-06-07 | 2000-07-31 | 日新製鋼株式会社 | Method of changing slab width in continuous casting of steel |
| DE4304934A1 (en) * | 1993-02-18 | 1994-08-25 | Schloemann Siemag Ag | Device for adjusting mold narrow side walls |
| JP4041061B2 (en) * | 2003-12-18 | 2008-01-30 | 松下電器産業株式会社 | Remote copy processing method and remote copy processing control program |
-
1997
- 1997-10-31 DE DE19748305A patent/DE19748305A1/en not_active Withdrawn
-
1998
- 1998-10-22 US US09/177,296 patent/US6142212A/en not_active Expired - Lifetime
- 1998-10-27 EP EP98120153A patent/EP0914888B1/en not_active Expired - Lifetime
- 1998-10-27 DE DE59811862T patent/DE59811862D1/en not_active Expired - Lifetime
- 1998-10-27 AT AT98120153T patent/ATE274387T1/en active
- 1998-10-27 ES ES98120153T patent/ES2226052T3/en not_active Expired - Lifetime
- 1998-10-28 JP JP30736098A patent/JP4745473B2/en not_active Expired - Fee Related
- 1998-10-31 CN CN98124569A patent/CN1083306C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007039882A1 (en) | 2007-04-26 | 2008-11-06 | Sms Demag Ag | continuous casting |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11207443A (en) | 1999-08-03 |
| ES2226052T3 (en) | 2005-03-16 |
| EP0914888A1 (en) | 1999-05-12 |
| ATE274387T1 (en) | 2004-09-15 |
| DE59811862D1 (en) | 2004-09-30 |
| US6142212A (en) | 2000-11-07 |
| JP4745473B2 (en) | 2011-08-10 |
| CN1083306C (en) | 2002-04-24 |
| CN1219448A (en) | 1999-06-16 |
| DE19748305A1 (en) | 1999-05-06 |
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