EP1372889B1 - Adjustable mould divider for fitting into a conventional ingot mould - Google Patents
Adjustable mould divider for fitting into a conventional ingot mould Download PDFInfo
- Publication number
- EP1372889B1 EP1372889B1 EP02722247A EP02722247A EP1372889B1 EP 1372889 B1 EP1372889 B1 EP 1372889B1 EP 02722247 A EP02722247 A EP 02722247A EP 02722247 A EP02722247 A EP 02722247A EP 1372889 B1 EP1372889 B1 EP 1372889B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mould
- divider
- mold
- plates
- housing
- 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
- 238000005266 casting Methods 0.000 claims abstract description 25
- 210000000056 organ Anatomy 0.000 claims abstract 8
- 230000008602 contraction Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0403—Multiple moulds
Definitions
- the invention relates to an adjustable mold divider for installation in a slab mold with narrow side parts designed for lateral adjustment optionally casting multiple strands with variable strand widths, comprising a housing that can be installed in a stationary manner for the mold on its broad side plates and on both sides in the width direction of the mold adjustable adjustment with their End existing support plates and on these 'arranged narrow-sided Heat exchanger plates.
- Continuous casting molds for steel usually have during casting or in Pouring breaks adjustable narrow sides, the adjustment ranges on the one hand mechanical conditions such as the control range of the drives or spatial limitations and forces to be absorbed, and on the other hand by procedural requirements, e.g. B. the relationship between subsequent melt times, Casting speed and casting width are limited.
- Mold dividers are usually made with a fixed geometry of the spacing Mold plates from each other, and their taper. If mold divider they have to be adapted to very different format areas either designed to be interchangeable as a whole, or by installing adapters or Fitting pieces changed. Such adjustments can only be made outside the Casting process are carried out and thus increase the costs due to downtimes the plant considerably. In addition, the interpretation of the narrow side taper on the mold divider, as well as the positioning of the immersion spout only for a medium casting width. Both settings result from an increase the strand shell stress and deterioration of the flow pattern negative metallurgical consequences in the liquid strand content.
- GB-A-1 308 592 relates to a mold divider for installation in a conventional slab mold with lateral adjustment Narrow side parts for the optional casting of several strands with changeable Strand widths, comprising a stationary mold between the broad side plates built-in housing with adjustable width on both sides of the mold Adjustment elements with support plates provided at their ends and on this arranged narrow-side heat exchanger plates.
- the task of the present document is based on the document mentioned above
- the invention consists in avoiding the disadvantages mentioned creating an adjustable mold divider.
- This measure according to the invention is an adjustment of the casting width achieved during casting by making all four drive axles independent each have their own drive trains and motors.
- This version also requires the largest installation space. Therefore can - while accepting reduced flexibility of the movement process - e.g. the two spindles arranged one above the other by a common side Motor driven and mechanical - e.g. through suitably staggered gear ratios - Coupled so that one required for the casting process Inclination, the so-called shrink taper of the heat exchanger plates depending remains unchanged from the adjustment path.
- a staggered reduction can also be achieved with different spindle pitches can be achieved.
- This arrangement has the positive consequence that the casting performance of the entire mold always remains constant, because during on one side the casting format is enlarged, on the opposite Page this is reduced accordingly. But it is also a coupling conceivable in which both sides shifted in opposite directions but to the same extent become.
- the attachment of the adjustable mold divider between the broad side plates the mold can also be made off-center. This allows the area of the same time pourable formats can be further enlarged for a given installation space, even if spare parts are to be kept ready for each individual strand.
- twin strands can also be combined in one large range with variable casting width without interruptions and with optimal sump flow with symmetrical inflow of the melt be shed.
- Figure 1 shows an adjustable mold divider for installation in a conventional Slab mold 1 with for lateral adjustment during a casting process trained narrow side parts 6.
- the mold divider comprises a relative for the mold 1, a housing that can be installed between the broad side plates 2 of the mold 3, which can be adjusted in pairs on both sides in the width direction of the mold 1
- Adjusting elements 4 has support plates arranged at their ends 5 and with narrow-side heat exchanger plates 6 arranged thereon.
- the adjusting members 4 of the mold divider are preferably spindles 9, which by means of the housing 3 integrable drive means 10 via gears and shafts 13 by external motors 11, 12 according to FIG. 4 or 5 electrically, hydraulically or can be driven pneumatically.
- the support plates 5 are for absorbing vertical loads or forces in the upper Area, as shown in Figures 3 and 6, with transverse guide bolts 7 equipped, which are guided engaging in guide grooves 8 and in the mold broadside plates 2 are embedded in the upper area.
- the reference numerals 9 indicate those that can be seen in the sectional illustration in FIG. 3 Designated spindles.
- Figure 4 shows the oil supply means provided for a hydraulic drive of the spindles 14 for hydraulic oil, the connections for the spindle drives 9 in Figure 3 are shown.
- Figure 6 shows in a section perpendicular to the support plate 5 and the arranged on it Heat exchanger plate 6 that to expand the adjustment range Spindles 9, the support plate 5 is excluded up to the heat exchanger plate 6, preferably the recesses for the prevention of sealing problems to the support plate 5 are designed as deep holes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Confectionery (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Die Erfindung betrifft einen verstellbaren Kokillenteiler zum Einbau in eine Brammenkokille mit zum seitlichen Verstellen ausgebildeten Schmalseitenteilen zwecks wahlweisem Gießen mehrerer Stränge mit veränderbaren Strangbreiten, umfassend ein zur Kokille ortsfest zu deren Breitseitenplatten einbaubares Gehäuse und beidseitig in Breitenrichtung der Kokille einstellbare Verstellorgane mit an ihren Enden vorhandenen Tragplatten und an diesen 'angeordneten schmalseitigen Wärmetauscherplatten.The invention relates to an adjustable mold divider for installation in a slab mold with narrow side parts designed for lateral adjustment optionally casting multiple strands with variable strand widths, comprising a housing that can be installed in a stationary manner for the mold on its broad side plates and on both sides in the width direction of the mold adjustable adjustment with their End existing support plates and on these 'arranged narrow-sided Heat exchanger plates.
Stranggießkokillen für Stahl besitzen in der Regel während des Gießens oder in Gießpausen verstellbare Schmalseiten, deren Verstellbereiche einerseits durch mechanische Gegebenheiten wie beispielsweise der Regelbereich der Antriebe oder räumliche Begrenzungen und aufzunehmende Kräfte, und andererseits durch verfahrenstechnische Erfordernisse, z. B. der Zusammenhang zwischen Schmelzenfolgezeit, Gießgeschwindigkeit und Gießbreite begrenzt sind.Continuous casting molds for steel usually have during casting or in Pouring breaks adjustable narrow sides, the adjustment ranges on the one hand mechanical conditions such as the control range of the drives or spatial limitations and forces to be absorbed, and on the other hand by procedural requirements, e.g. B. the relationship between subsequent melt times, Casting speed and casting width are limited.
Wenn das angestrebte Gießbreitenspektrum einer solchen Anlage durch Erweiterung des Verstellbereiches eines einzelnen Brammenstranges nicht mehr wirtschaftlich abgedeckt werden kann, kommt fallweise ein Kokillenteiler, auch Twin-Divider genannt, zum Einsatz. Mit diesem wird ein einzelner Strang in zwei Teilstränge unterteilt. Somit können, ohne Reduzierung der Gießleistung, Stränge der halben Breite erzeugt werden.If the desired casting width spectrum of such a system by extension the adjustment range of a single strand of slab is no longer economical can sometimes be covered by a mold divider, also a twin divider called, to use. With this one becomes a single strand in two Sub-strands divided. Thus, strands can be produced without reducing the casting performance half the width.
Kokillenteiler werden üblicherweise mit einer festen Geometrie des Abstandes der Kokillenplatten voneinander, und deren Konizität, ausgeführt. Wenn Kokillenteiler auf stark unterschiedliche Formatbereiche angepasst werden müssen, werden sie entweder im Ganzen austauschbar ausgebildet, oder durch Einbau von Adapteroder Passstücken verändert. Derartige Anpassungen können nur außerhalb des Gießprozesses durchgeführt werden und erhöhen damit die Kosten infolge Stillstandszeiten der Anlage erheblich. Daneben kann die Auslegung der Schmalseitenkonizität am Kokillenteiler, sowie die Positionierung des Tauchausgusses nur für eine mittlere Gießbreite erfolgen. Beide Einstellungen ergeben durch Erhöhung der Strangschalenbeanspruchung sowie Verschlechterung des Strömungsbildes im flüssigen Stranginhalt negative metallurgische Folgen.Mold dividers are usually made with a fixed geometry of the spacing Mold plates from each other, and their taper. If mold divider they have to be adapted to very different format areas either designed to be interchangeable as a whole, or by installing adapters or Fitting pieces changed. Such adjustments can only be made outside the Casting process are carried out and thus increase the costs due to downtimes the plant considerably. In addition, the interpretation of the narrow side taper on the mold divider, as well as the positioning of the immersion spout only for a medium casting width. Both settings result from an increase the strand shell stress and deterioration of the flow pattern negative metallurgical consequences in the liquid strand content.
Das Dokument GB-A-1 308 592 betrifft einen Kokillenteiler zum Einbau in eine konventionelle Brammenkokille mit zum seitlichen Verstellen ausgebildeten Schmalseitenteilen zwecks wahlweisen Gießens mehrerer Stränge mit veränderbaren Strangbreiten, umfassend ein zur Kokille ortsfest zwischen deren Breitseitenplatten einbaubares Gehäuse mit beidseitig in Breitenrichtung der Kokille einstellbaren Verstellorganen mit an ihren Enden vorgesehenen Tragplatten und an diesen angeordneten schmalseitigen Wärmetauscherplatten.GB-A-1 308 592 relates to a mold divider for installation in a conventional slab mold with lateral adjustment Narrow side parts for the optional casting of several strands with changeable Strand widths, comprising a stationary mold between the broad side plates built-in housing with adjustable width on both sides of the mold Adjustment elements with support plates provided at their ends and on this arranged narrow-side heat exchanger plates.
Ausgehend von dem zuvor genannten Dokument besteht die Aufgabe der vorliegenden Erfindung besteht darin, zur Vermeidung der genannten Nachteile einen verstellbaren Kokillenteiler zu schaffen.The task of the present document is based on the document mentioned above The invention consists in avoiding the disadvantages mentioned creating an adjustable mold divider.
Die Lösung der Aufgabe besteht bei einem Kokillenteiler der im Oberbegriff von
Anspruch 1 genannten Bauart darin, dass die Verstellorgane mittels in das Gehäuse
integrierten Antriebsmitteln über Getriebe sowie über Antriebswellen durch
außenliegende Motoren antreibbar sind und eine Verstellung während des Gießens
oder in Gießpausen ermöglichen, und, dass alle Verstellorgane einer Tragplatte
unabhängig voneinander mit separaten Antriebsmitteln ausgerüstet sind.The problem is solved with a mold divider in the preamble of
Durch diese Maßnahme nach der Erfindung wird ein Verstellen der Gießbreite während des Gießens dadurch erreicht, dass alle vier Antriebsachsen unabhängig voneinander mit jeweils eigenen Antriebssträngen und Motoren ausgeführt sind.This measure according to the invention is an adjustment of the casting width achieved during casting by making all four drive axles independent each have their own drive trains and motors.
Diese Ausführung erfordert gleichzeitig den größten Einbauraum. Deshalb können - unter Inkaufnahme reduzierter Flexibilität des Bewegungsvorganges - bspw. die beiden übereinander angeordneten Spindeln je einer Seite durch einen gemeinsamen Motor angetrieben und mechanisch - bspw. durch geeignet gestaffelte Getriebeuntersetzungen - so gekoppelt werden, dass eine für den Gießprozess erforderliche Neigung, die sog. Schrumpfkonizität der Wärmetauscherplatten in Abhängigkeit vom Verstellweg erhalten bleibt.This version also requires the largest installation space. Therefore can - while accepting reduced flexibility of the movement process - e.g. the two spindles arranged one above the other by a common side Motor driven and mechanical - e.g. through suitably staggered gear ratios - Coupled so that one required for the casting process Inclination, the so-called shrink taper of the heat exchanger plates depending remains unchanged from the adjustment path.
Eine gestaffelte Untersetzung kann auch durch unterschiedliche Spindelsteigungen erreicht werden. Weiterhin können - unter Inkaufnahme reduzierter Flexibilität des zu vergießenden Formatspektrums - die beiden in einer Höhe liegenden Achsen der jeweils gegenüber liegenden Gießhohlräume mechanisch zusammengefasst werden. Dies kann so geschehen, dass eine durchlaufende Spindel beide Tragplatten gleichsinnig verschiebt. Diese Anordnung hat zur positiven Folge, dass die Gießleistung der gesamten Kokille stets konstant bleibt, denn während auf der einen Seite das Gießformat vergrößert wird, wird auf der gegenüberliegenden Seite dieses entsprechend verkleinert. Es ist aber auch eine Koppelung denkbar, bei welcher beide Seiten gegensinnig aber im gleichen Maße verschoben werden.A staggered reduction can also be achieved with different spindle pitches can be achieved. Furthermore, you can accept reduced flexibility of the format range to be cast - the two axes lying at a height the casting cavities opposite each other are mechanically combined become. This can be done so that a continuous spindle both Carrier plates shifted in the same direction. This arrangement has the positive consequence that the casting performance of the entire mold always remains constant, because during on one side the casting format is enlarged, on the opposite Page this is reduced accordingly. But it is also a coupling conceivable in which both sides shifted in opposite directions but to the same extent become.
Für den speziellen Betriebsfall, bei welchem in derselben Kokille sowohl eine Breitbramme, als auch zwei Zwillingsbrammen vergossen werden, wird das Gehäuse zwischen den unveränderten Breitseiten-Wärmetauscherplatten angeordnet. Dies erfordert jedoch erhöhten Bauraum und geht letztlich zu Lasten des erreichbaren Verstellweges. Darüber hinaus ist es dann erforderlich, den Antriebsstrang bzw. bei Verwendung von Linearantrieben deren Energieversorgungseinrichtung über die Breitseitenwasserkästen hinweg oder unter ihnen hindurch zu leiten.For the special operating case in which both one Broad slab, as well as two twin slabs are shed, the housing arranged between the unchanged broadside heat exchanger plates. However, this requires increased installation space and is ultimately at the expense of what can be achieved Adjustment path. In addition, it is then necessary to powertrain or when using linear drives their energy supply device over or under the broadside water tanks conduct.
Die Anbringung des verstellbaren Kokillenteilers zwischen den Breitseitenplatten der Kokille kann auch außermittig erfolgen. Damit kann der Bereich der gleichzeitig vergießbaren Formate bei gegebenem Bauraum weiter vergrößert werden, auch wenn für jeden einzelnen Strang Reserveteile bereit zu halten sind.The attachment of the adjustable mold divider between the broad side plates the mold can also be made off-center. This allows the area of the same time pourable formats can be further enlarged for a given installation space, even if spare parts are to be kept ready for each individual strand.
Eine weitere zweckmäßige Maßnahme zur Erweiterung des Verstellweges sieht vor, dass die Trägerplatte zur Verlängerung der Verstellspindeln bis zu der Wärmetauscherplatte ausgenommen wird. In diesem Fall ist es vorteilhaft, die Ausnehmung als Tieflochbohrungen auszuführen, um Abdichtungsproblemen zur Trägerplatte hin vorzubeugen.Another expedient measure for expanding the adjustment path sees before that the support plate to extend the adjustment spindles up to the heat exchanger plate is excluded. In this case, it is advantageous to use the recess to be carried out as deep hole bores to avoid sealing problems with the carrier plate to prevent.
Schließlich muß sorgfältig beachtet werden, dass die Position und - in besonderem Maße - die Neigung der Schmalseiten der Kokille im Hinblick auf die Sicherheit des Gießprozesses in sehr engen Grenzen eingestellt werden muss. Vielfach reicht zur Einhaltung der geforderten Toleranzen selbst die Verwendung spielretriebselemente wie beispielsweise Hydraulik- oder Pneumatikzylinder angeordnet werden. Diese Zugmittel müssen dann so ausgelegt sein, daß sie entweder während der gesamten Betriebszeit oder nur während der Verstellvorgänge, mit einer Zugkraft auf die Schmalseitenträger wirken, die so groß bemessen ist, daß sie alle Spiele im Verstell-Antriebsstrang stets auf der Druckseite zur Anlage bringen. Anstelle von Linearantrieben können auch von außen betätigte Seiltriebe zum Einsatz gelangen.Finally, care must be taken to ensure that the position and - in particular Dimensions - the inclination of the narrow sides of the mold in terms of safety of the casting process must be set within very narrow limits. frequently even the use of game gear elements is sufficient to comply with the required tolerances such as hydraulic or pneumatic cylinders become. These traction devices must then be designed so that they either during the entire operating time or only during the adjustment processes, with a tensile force acting on the narrow side girder, which is dimensioned so large, that all games in the adjustment drive train are always on the pressure side of the system bring. Instead of linear drives, externally actuated ones can also be used Rope drives are used.
Damit ist es möglich, den für die Spielkompensation erforderlichen Bauraum im Bereich der Verstellgetriebe zu minimieren. Wenn der verfügbare Bauraum auch für diese Form der Spielkompensation nicht ausreicht, wird vorgeschlagen, die Spiele im Antriebsstrang dadurch zu kompensieren, daß unabhängig von der betrieblich erforderlichen Verstellrichtung in einem letzten Verstellschritt immer entgegen den im Betrieb zu erwartenden Kräften verfahren wird. Der Betrag des dabei zurückgelegten Weges muß nur größer sein, als das größte zulässige Gesamtspiel im Antriebsstrang. Diese Lösung ist zugleich diejenige mit dem geringsten gerätetechnischen Aufwand.This makes it possible to use the space required for the game compensation in the To minimize the range of the variable speed gear. If the available space it is also not sufficient for this form of game compensation, it is proposed to compensate for the games in the drive train in that independently of the operationally required adjustment direction in a last adjustment step is always moved against the forces to be expected in the company. The The amount of travel must only be greater than the largest permissible total play in the drive train. This solution is also the one with the least technical effort.
Mit dem beschriebenen Kokillenteiler können auch Zwillingsstränge in einem großen Spektrum mit variabler Gießbreite ohne Betriebsunterbrechungen und mit optimaler Sumpfströmung bei symmetrischer Einströmung der Schmelze vergossen werden.With the mold divider described, twin strands can also be combined in one large range with variable casting width without interruptions and with optimal sump flow with symmetrical inflow of the melt be shed.
Damit ist die ökonomisch vorteilhafte, mit der Erfindung erschließbare Erweiterung von Brammenanlagen auch metallurgisch sensibleren Stahlqualitäten zugänglich.This is the economically advantageous extension that can be developed with the invention of slab systems also accessible to metallurgically sensitive steel grades.
Für den Einsatz im Bereich des konventionellen Zwillingsgießen ist die mit der Erfindung deutlich reduzierte Rüstzeit herauszustellen. Darüber hinaus erübrigt sich das Vorhalten verschieden breiter Kokillenteiler zur Anpassung an ein wechselndes Formatspektrum, und damit auch der Umfang der erforderlichen Reserveteilhaltung. For use in conventional twin casting, the one with the Invention to significantly reduce set-up time. Furthermore, superfluous the provision of differently wide mold dividers to adapt to changing format range, and thus the scope of the required Reserve parts inventories.
Darüber hinaus besteht auch in Kokillen mit Kokillenteiler die Möglichkeit der Reduzierung der Länge von Übergangskeilen durch Einsatz von Verstellstrategien mit stufenlos veränderter Schmalseitenneigung während des Verstellvorganges. Insgesamt wird bei gleichzeitiger Reduzierung des Schrottanfalles die Systemverfügbarkeit erhöht und damit die Rentabilität der Stranggießanlagen gesteigert.In addition, there is also the possibility of in molds with mold dividers Reduction of the length of transition wedges by using adjustment strategies with continuously changing narrow side inclination during the adjustment process. Overall, while reducing the amount of scrap, the System availability increases and thus the profitability of the continuous caster increased.
Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Erläuterung eines in den Zeichnungen schematisch dargestellten Ausführungsbeispieles. Es zeigen:
Figur 1- den verstellbaren Kokillenteiler (Conti-Twin-Divider) in Seitenansicht
mit mechanischen Verstellantrieben in einer Ansicht der
Ebene A-A in
Figur 2; Figur 2- den Kokillenteiler gemäß
Figur 1 in Draufsicht; Figur 3- den Kokillenteiler mit hydraulischen oder pneumatischen Antrieben in Seitenansicht der Kokille;
Figur 4- den Kokilllenteiler gemäß
Figur 3 in Draufsicht; Figur 5- eine perspektivische Ansicht einer Stranggießkokille mit in ihrem mittleren Bereich eingebauten Gehäuse eines verstellbaren Kokillenteilers;
Figur 6- im Schnitt die endseitigen Spindelantriebe zur Verstellung des Kokillenteilers.
- Figure 1
- the adjustable mold divider (Conti-Twin-Divider) in side view with mechanical adjustment drives in a view of the plane AA in Figure 2;
- Figure 2
- the mold divider according to Figure 1 in plan view;
- Figure 3
- the mold divider with hydraulic or pneumatic drives in side view of the mold;
- Figure 4
- the mold divider according to Figure 3 in plan view;
- Figure 5
- a perspective view of a continuous casting mold with the housing of an adjustable mold divider installed in its central region;
- Figure 6
- on average the end spindle drives for adjusting the mold divider.
Figur 1 zeigt einen verstellbaren Kokillenteiler zum Einbau in eine konventionelle
Brammenkokille 1 mit zum seitlicher Verstellen während eines Gießprozesses
ausgebildeten Schmalseitenteilen 6. Der Kokillenteiler umfaßt ein relativ
zur Kokille 1 ortsfest zwischen deren Breitseitenplatten 2 einbaubares Gehäuse
3, das paarweise übereinander beidseitig in Breitenrichtung der Kokille 1 einstellbare
Verstellorgane 4 aufweist mit an ihren Enden angeordneten Tragplatten
5 und mit an diesen angeordneten schmalseitigen Wärmetauscherplatten 6.Figure 1 shows an adjustable mold divider for installation in a
Die Verstellorgane 4 des Kokillenteilers sind bevorzugt Spindeln 9, die mittels in
das Gehäuse 3 integrierbaren Antriebsmitteln 10 über Getriebe und Wellen 13
durch außen liegende Motoren 11, 12 gemäß Figur 4 oder 5 elektrisch, hydraulisch
oder pneumatisch antreibbar sind.The adjusting
Die Tragplatten 5 sind zur Aufnahme vertikaler Lasten bzw. Kräfte im oberen
Bereich, wie dies die Figuren 3 und 6 zeigen, mit querstehenden Führungsbolzen
7 ausgerüstet, die in Führungsnuten 8 eingreifbar geführt sind und die in
den Kokillen-Breitseitenplatten 2 in deren oberen Bereich eingelassen sind.The
Mit den Bezugszeichen 9 sind die aus der Schnittdarstellung der Figur 3 erkennbaren
Spindeln bezeichnet.The
Figur 4 zeigt die für einen hydraulischen Antrieb der Spindeln vorgesehene Ölzufuhrmittel
14 für Hydrauliköl, deren Anschlüsse für die Spindelantriebe 9 in
Figur 3 gezeigt sind.Figure 4 shows the oil supply means provided for a hydraulic drive of the
In der perspektivischen Darstellung gemäß Figur 5 ist mit den gestrichelten Linien
17 eine Antriebsverbindung zwischen den außen liegenden Motoren 11, 12
und der Durchführung eines Antriebsstranges 15 sowohl durch den Kokillenrahmen
16, als auch durch die Wasserkästen 18 für einen Antriebsstrang angedeutet.5 is with the dashed lines
17 a drive connection between the
Figur 6 zeigt in einem Schnitt senkrecht zur Tragplatte 5 und der an ihr angeordneten
Wärmetauscherplatte 6, daß zur Erweiterung des Verstellweges der
Spindeln 9 die Tragplatte 5 bis zur Wärmetauscherplatte 6 ausgenommen ist,
wobei vorzugsweise die Ausnehmungen zur Vorbeugung von Abdichtungsproblemen
zur Tragplatte 5 hin als Tieflochbohrungen ausgeführt sind. Figure 6 shows in a section perpendicular to the
- 1.1.
- Kokillemold
- 2.Second
- LängsseitenplatteLongitudinal side plate
- 3.Third
- Gehäusecasing
- 4.4th
- Verstellorganadjusting
- 5.5th
- Tragplattesupport plate
- 6.6th
- Wärmetauscherplatteheat exchanger plate
- 7.7th
- Führungsbolzenguide pins
- 8.8th.
- Führungsnutguide
- 9.9th
- Spindelnspindles
- 10.10th
- Antriebsmitteldrive means
- 11.11th
- aussenliegender Motorexternal motor
- 12.12th
- aussenliegender Motorexternal motor
- 13.13th
- Antriebswelledrive shaft
- 14.14th
- Ölzufuhr HydraulikOil supply hydraulic
- 15.15th
- Durchführung AntriebsstrangCarrying out powertrain
- 16.16th
- Kokillenrahmenmold frame
- 17.17th
- Antriebsübertragungdrive transmission
- 18.18th
- Wasserkastencistern
- 19.19th
- TieflochbohrungDeep hole drilling
Claims (10)
- A mould divider for fitting into an ingot mould (1) with narrow-side sections (5) configured to be adjusted laterally for the purpose of selectively casting several strands with adjustable strand widths, comprising a housing (3) which can be fitted in a fixed manner to the mould (1) between its broad-side plates (2) and adjusting organs (4) which can be adjusted bilaterally in the broad-side direction of the mould, with supporting plates (5) provided at their ends and narrow-sided heat-exchanger plates (6) arranged on the latter, characterised in that the adjusting organs (4) can be driven by means of drive means (10) integrated into the housing (3) by way of gears and via drive shafts (13) through external motors and enable adjustment during casting or pauses in casting, and in that all adjusting organs (4) are equipped with a supporting plate (5) independently of one another with separate drive means.
- The mould divider as claimed in Claim 1, characterised in that the supporting plates have transverse guide bolts (7) for taking up vertical loads or forces in the upper region, and the latter are guided engageably in guide grooves (8) let into the upper region of the mould broad-side plates (2).
- The mould divider as claimed in Claim 1 or 2, characterised in that paired superjacent adjusting organs (4) of one side of the housing (3) can be driven by common drive means (10) and are coupled for example by differently graded gear stages, such that appropriate contraction conicity of the narrow-side heat-exchanger plates (6) is achieved in accordance with their setting range.
- The mould divider as claimed in any one or more of Claims 1 to 3, characterised in that with eccentric fitting of the housing (3) between the broad-side plates (2) the region of the simultaneously castable strand formats is enlarged with the given structural space and asymmetrical design of the mould (1).
- The mould divider as claimed in any one or more of Claims 1 to 4, characterised in that the supporting plate (5) of one or both housing sides is recessed to lengthen the adjusting organs as far as the heat-exchanger plate (6), whereby its recesses are preferably designed as deep hole bores (19).
- The mould divider as claimed in any one or more of Claims 1 to 5, characterised in that the housing (3) with the adjusting organs (4) is arranged centrally or eccentrically between the broad-side plates (2) of the mould (1).
- The mould divider as claimed in any one or more of Claims 1 to 6, characterised in that the adjusting organs (4) are assigned counter-acting force elements for compensating the mechanical play of the adjustment movement, or the spindle (9) is fitted with a retrofitted spindle nut.
- The mould divider as claimed in any one or more of Claims 1 to 7, characterised by a telescopic configuration of the spindles (9).
- The mould divider as claimed in any one or more of Claims 1 to 7, characterised by the configuration of the spindles (9) at various inclinations.
- The mould divider as claimed in any one or more of Claims 1 to 8, characterised by a continuous spindle (9) for both supporting plates (5).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10116087 | 2001-03-30 | ||
DE10116087A DE10116087A1 (en) | 2001-03-30 | 2001-03-30 | Adjustable mold divider for installation in a conventional slab mold |
PCT/EP2002/003052 WO2002078879A1 (en) | 2001-03-30 | 2002-03-20 | Adjustable mould divider for fitting into a conventional ingot mould |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1372889A1 EP1372889A1 (en) | 2004-01-02 |
EP1372889B1 true EP1372889B1 (en) | 2004-10-27 |
Family
ID=7679889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02722247A Expired - Lifetime EP1372889B1 (en) | 2001-03-30 | 2002-03-20 | Adjustable mould divider for fitting into a conventional ingot mould |
Country Status (11)
Country | Link |
---|---|
US (1) | US6942011B2 (en) |
EP (1) | EP1372889B1 (en) |
JP (1) | JP4559027B2 (en) |
KR (1) | KR100851897B1 (en) |
CN (1) | CN1264624C (en) |
AT (1) | ATE280646T1 (en) |
DE (2) | DE10116087A1 (en) |
ES (1) | ES2229127T3 (en) |
RU (1) | RU2289494C2 (en) |
TW (1) | TW544352B (en) |
WO (1) | WO2002078879A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT414221B (en) * | 2004-06-09 | 2006-10-15 | Voest Alpine Ind Anlagen | CONTINUITY CASTING SYSTEM AND METHOD FOR OPTIONALLY CASTING A WIDE METAL STRIP OR MAXIMUM TWO MORE THAN MERRY METAL STRINGS |
JP2006247741A (en) * | 2005-03-14 | 2006-09-21 | Nippon Steel Corp | Casting mold for continuous casting equipment and joining structure of intermediate member in casting mold |
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 |
AT514576B1 (en) * | 2013-09-20 | 2015-02-15 | Wopfner Kurt | Drive arrangement for a cable transport system |
DE202016105609U1 (en) * | 2016-10-07 | 2017-02-20 | Primetals Technologies Austria GmbH | Mold divider for installation in a mold |
CN109865805B (en) * | 2019-03-22 | 2020-11-03 | 广西南南铝加工有限公司 | Method for casting hard aluminum alloy slab ingot by using adjustable crystallizer |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1059626B (en) * | 1957-04-06 | 1959-06-18 | Aluminium Walzwerke Singen | Continuous casting mold |
US3292216A (en) | 1963-06-25 | 1966-12-20 | Concast Ag | Adjustable mold for continuous casting installation |
AT308303B (en) | 1970-01-20 | 1973-06-25 | Mannesmann Ag | Continuous casting mold for rectangular strands |
US3717197A (en) * | 1971-01-15 | 1973-02-20 | Mannesmann Ag | Mold for continuous casting of slab ingots |
JPS5360325A (en) * | 1976-11-11 | 1978-05-30 | Kawasaki Steel Co | Device for driving short side of mold in continuous casting machine |
JPS6121144Y2 (en) * | 1979-01-10 | 1986-06-25 | ||
JPS566550U (en) * | 1979-06-27 | 1981-01-21 | ||
JPS6121146Y2 (en) * | 1981-02-13 | 1986-06-25 | ||
JPS5843852U (en) * | 1981-09-17 | 1983-03-24 | 日立造船株式会社 | Mold short side adjustment device for twin/triple continuous casting equipment |
JPS5897466A (en) * | 1981-12-04 | 1983-06-09 | Nippon Steel Corp | Small arced mold for continuous casting |
DE3224065C2 (en) * | 1982-06-28 | 1984-05-30 | Benteler-Werke Ag Werk Neuhaus, 4790 Paderborn | Adjustable continuous casting mold for multiple continuous casting plants |
JPH0117403Y2 (en) * | 1984-10-31 | 1989-05-19 | ||
JPS6254553A (en) | 1985-09-02 | 1987-03-10 | Sumitomo Heavy Ind Ltd | Twin mold for continuous casting installation |
GB8522270D0 (en) * | 1985-09-09 | 1985-10-16 | Wajnikonis K J | Velocity hydrofoils |
US4942919A (en) * | 1988-02-17 | 1990-07-24 | Sms Concast, Inc. | Mold and support zone for continuous casting |
JPH0530840Y2 (en) * | 1988-08-18 | 1993-08-06 | ||
US4942929A (en) | 1989-03-13 | 1990-07-24 | Atlantic Richfield Company | Disposal and reclamation of drilling wastes |
DE19842110C1 (en) * | 1998-09-08 | 1999-08-26 | Mannesmann Ag | Adjustable plate mold for continuous casting of metal |
-
2001
- 2001-03-30 DE DE10116087A patent/DE10116087A1/en not_active Withdrawn
-
2002
- 2002-03-15 TW TW091104964A patent/TW544352B/en not_active IP Right Cessation
- 2002-03-20 RU RU2003131892/02A patent/RU2289494C2/en not_active IP Right Cessation
- 2002-03-20 KR KR1020037012811A patent/KR100851897B1/en active IP Right Grant
- 2002-03-20 DE DE50201405T patent/DE50201405D1/en not_active Expired - Lifetime
- 2002-03-20 EP EP02722247A patent/EP1372889B1/en not_active Expired - Lifetime
- 2002-03-20 CN CNB028075951A patent/CN1264624C/en not_active Expired - Fee Related
- 2002-03-20 AT AT02722247T patent/ATE280646T1/en active
- 2002-03-20 WO PCT/EP2002/003052 patent/WO2002078879A1/en active IP Right Grant
- 2002-03-20 JP JP2002577132A patent/JP4559027B2/en not_active Expired - Fee Related
- 2002-03-20 US US10/473,437 patent/US6942011B2/en not_active Expired - Lifetime
- 2002-03-20 ES ES02722247T patent/ES2229127T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2229127T3 (en) | 2005-04-16 |
ATE280646T1 (en) | 2004-11-15 |
KR20030081536A (en) | 2003-10-17 |
WO2002078879A1 (en) | 2002-10-10 |
JP2004521749A (en) | 2004-07-22 |
US6942011B2 (en) | 2005-09-13 |
DE10116087A1 (en) | 2002-10-10 |
TW544352B (en) | 2003-08-01 |
CN1264624C (en) | 2006-07-19 |
US20040154782A1 (en) | 2004-08-12 |
RU2003131892A (en) | 2005-02-10 |
JP4559027B2 (en) | 2010-10-06 |
DE50201405D1 (en) | 2004-12-02 |
EP1372889A1 (en) | 2004-01-02 |
CN1500020A (en) | 2004-05-26 |
RU2289494C2 (en) | 2006-12-20 |
KR100851897B1 (en) | 2008-08-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0545104B1 (en) | Method and apparatus for continuous casting of ingots or blooms | |
EP2257397B1 (en) | Strand guide segment | |
EP2161236B1 (en) | Stacker crane with running gear | |
EP1372889B1 (en) | Adjustable mould divider for fitting into a conventional ingot mould | |
AT3953U2 (en) | STRING GUIDING ELEMENT AND STRING GUIDING SEGMENT WITH INTEGRATED STRING GUIDING ELEMENT | |
DE2416625B2 (en) | Device for locking the exchangeable traverses of a guide roll stand of a continuous caster | |
EP0037549A1 (en) | Coaxial adjacent supported strand guiding rollers in a continuous casting plant for steel | |
DE4444941C3 (en) | continuous casting | |
DE102010007660B4 (en) | continuous casting machine | |
DE2021780A1 (en) | Support and guide arch for cast iron | |
DE2721856C3 (en) | Strand guides for a multi-strand billet or bloom line with more than two strands for continuous casting of steel | |
DE2731748B2 (en) | Roller guide frame for a steel continuous caster | |
EP0073184A1 (en) | Plate mould of a continuous casting plant | |
EP1732715B1 (en) | Method for the insertion of machine units into a production line | |
DE2018490A1 (en) | ||
DE102004057427A1 (en) | Apparatus and method for continuous casting | |
EP0394776B1 (en) | Arc-type plant for continuously casting steel strands, with an oscillatory continuous casting mould | |
EP1991379B1 (en) | Continuous casting plant and method of operating a continuous casting plant | |
EP0064238B1 (en) | Process and device for bending a strand in a continuous steel casting machine | |
EP0875316B1 (en) | Strand withdrawing apparatus | |
DE4435218C2 (en) | Mold for the continuous casting of thin slabs or steel strips | |
DE2018383A1 (en) | Roll stand, in particular for the deformation of a cast strand exiting directly from a continuous casting plant, and rolling mill plant | |
EP0941787A1 (en) | Supporting element for continuous casting plant | |
AT372633B (en) | PLATE CHOCOLATE OF A CONTINUOUS CASTING SYSTEM | |
DE2754405A1 (en) | STRAND GUIDE FOR A STEEL STRAND CASTING PLANT |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030716 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20031223 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BECKER, EDMUND Inventor name: KRAUSA, ALFONS Inventor name: DREIS, MICHAEL Inventor name: ANTON, OTTMAR Inventor name: KAISER, HEINZ-PETER Inventor name: LIEBISCH, KARL, OTTO Inventor name: VON WYL, HORST |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20041027 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50201405 Country of ref document: DE Date of ref document: 20041202 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050127 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050127 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050127 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050320 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050320 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050331 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050331 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2229127 Country of ref document: ES Kind code of ref document: T3 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20041027 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20041027 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
BERE | Be: lapsed |
Owner name: SMS DEMAG A.G. Effective date: 20050331 |
|
26N | No opposition filed |
Effective date: 20050728 |
|
EN | Fr: translation not filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060331 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
BERE | Be: lapsed |
Owner name: *SMS DEMAG A.G. Effective date: 20050331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050327 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50201405 Country of ref document: DE Representative=s name: HEMMERICH & KOLLEGEN, DE Ref country code: DE Ref legal event code: R081 Ref document number: 50201405 Country of ref document: DE Owner name: SMS GROUP GMBH, DE Free format text: FORMER OWNER: SMS SIEMAG AKTIENGESELLSCHAFT, 40237 DUESSELDORF, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20190418 Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20200320 Year of fee payment: 19 Ref country code: DE Payment date: 20200320 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20200318 Year of fee payment: 19 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20210802 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50201405 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 280646 Country of ref document: AT Kind code of ref document: T Effective date: 20210320 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200321 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210320 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210320 |