EP1029616A1 - Vorrichtung zum Oszillieren einer Stranggiesskokille - Google Patents
Vorrichtung zum Oszillieren einer Stranggiesskokille Download PDFInfo
- Publication number
- EP1029616A1 EP1029616A1 EP00101546A EP00101546A EP1029616A1 EP 1029616 A1 EP1029616 A1 EP 1029616A1 EP 00101546 A EP00101546 A EP 00101546A EP 00101546 A EP00101546 A EP 00101546A EP 1029616 A1 EP1029616 A1 EP 1029616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- continuous casting
- articulated
- hydraulic
- base frame
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 20
- 230000010355 oscillation Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B22D11/053—Means for oscillating the moulds
Definitions
- the invention relates to a device for oscillating a continuous casting mold, in particular for the continuous casting of thin slabs of steel, comprising a oscillating continuous casting mold, the oscillation drive with at a fixed Base frame arranged hydraulic units is formed.
- the mold In continuous casting, the mold is set in a periodic oscillation movement, to reduce the friction through a relative movement between the strand and the mold between the mold and the strand. This will make an undesirably high Friction of the strand on the mold wall is reduced. Furthermore, on the bathroom surface Granular to powdery casting powder in the mold after melting pulled into the gap between the mold and the strand as a lubricant.
- the alternating upsetting or stretching process of the strand shell causes in particular with a sinusoidal oscillation an oscillating excitation of the whole Strand. If this is in an unfavorable, for example harmonious Frequency range, it may. a. for swinging up the casting mirror in the mold come. Such a disadvantageous operating state can be particularly avoid by a non-sinusoidal movement of the mold, whereby a periodic bath level fluctuation is successfully dampened becomes.
- Hydraulic oscillation drives for lifting tables are state of the art known from continuous casting equipment, the mold oscillation with any Allow speed curves, for example corresponding to an asymmetrical one Sinusoid.
- the positive and negative strip time can be divided into optimal areas, which is beneficial on the oscillation marks, their depth and shape affects and an improvement of the Surface quality causes.
- document DE 37 04 793 C2 describes a mold lifting device with two on a lifting table for the continuous casting mold, or directly on this articulated, rotatably drivable eccentric shaft. Between rotary drive and the eccentric shafts, at least one drive shaft is used, in which the joint head facing away from the eccentric shaft is arranged such that it can be changed in position and the rod ends are rotatable against each other.
- a non-sinusoidal motion sequence the mold is used in this device through conscious use of a gimbal error that occurs when a propeller shaft is not is used in alignment between the waves. By changing height and lateral displacement of the rotary drive are different, non-sinusoidal Movements of the mold can be realized.
- Document EP 0 121 622 B1 describes a continuous caster using a mold mounted in a frame, which is controlled by an electro-hydraulic Servo device is vibrated.
- the generation of vibrations is preselected according to one generated by a function generator Vibration ampute signal operated at a frequency higher than that Natural frequency of the vibration device is.
- the as yet unpublished patent application 198 17 701.1 discloses a device for continuous casting of steel, consisting of an oscillating in the casting direction, continuous casting mold held in a lifting table and at least one oscillating drive acting on the lifting table.
- the lift table is below his Formed table-level guide blocks, between which a stationary clamping block is arranged.
- the oscillation drive exists consisting of four hydraulic cylinders, two of which are arranged on each mold side and with one end on the guide blocks and the other End are attached to a stationary support frame.
- An oscillation device described in document EP 0 732 978 B1 uses two clamped clamps on each side of the mold Leaf spring packages.
- a hydraulic cylinder is arranged centrally under the mold on each side.
- the object of the invention based on further improving known oscillation drives, and in particular a uncomplicated and compact device for decoupling the linear Relationship between casting speed and the oscillation parameters Stroke / frequency to specify, in particular an undesirable influence avoids the speed curve by a guide with spring characteristics and any setting of the ratio of stroke and frequency in one Realized device of the lowest possible height.
- the device shown in FIGS. 1 and 2 for oscillating a continuous casting mold 1, in particular for the continuous casting of thin slabs of steel, comprising the continuous casting mold 1 which can be oscillated in the casting directions or opposite direction and is arranged on two individual lifting table units, has an oscillation drive with two in total four hydraulic units 4, 4 'arranged on a stationary base frame 3 by means of joints 7, 7'.
- Each lifting table 2 is articulated to the upper part of the hydraulic unit 4, 4 ', and its lower end is articulated to the base frame 3.
- Each lifting table 2 is from to levels xx; x'-x 'parallel planes between base frame 3 and lifting table 2 in the horizontal position articulated links 9.9' out.
- the device described enables in a particularly uncomplicated and compact construction a decoupling of the linear relationship between Casting speed and the oscillation parameter stroke / frequency.
- the device is free from resonance frequencies and has good guiding properties in all levels.
- the links 9, 9 ' are arranged on the narrow sides 10, 10' of the mold 1.
- the guidance of the lifting tables 2 is designed with a double-link arrangement.
- An essential feature of the claimed device is that the Hydraulic units 4,4 'in parallel to the narrow sides 10,10' of the mold 1 Levels are arranged laterally at a distance from the lifting table 2 and that the Hydraulic units 4,4 'are double-acting servo cylinders.
- the perspective front view of the device in Figure 3 shows the arrangement two individual lifting tables on the right and left under the mold 1, which are comparatively train small and compact units. In the resulting In between there is an optimal accessibility to the individual Construction elements 3 to 9. This advantageously allows quick access to these elements for installation and / or removal z. B. for maintenance work or check the water connections of the mold cooling or at Place the device on the base frame 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Bei annähernd gleicher Geschwindigkeit zwischen Kokille und Strang, im Bereich der Richtungsumkehr von Negativstrip zum Positivstrip, liegt Haftreibung vor, bei der sich die resultierenden Zug- und Druckspannungen annähernd ausgleichen. Bei Erhöhung oder Erniedrigung der relativen Kokillengeschwindigkeit reißt sich die Kokille vom Strang los. Dies führt zum Stauchen und damit zu einer Geschwindigkeitserhöhung der Strangschale, wenn sich die Kokille auf ihrem Weg nach unten befindet, und umgekehrt zu einer Dehnung und damit zu einer Geschwindigkeitsreduzierung der Strangschale, wenn sich die Kokille auf ihrem Weg nach oben befindet.
- Figur 1
- eine Vorrichtung zum Oszillieren einer Stranggießkokille in Seitenansicht,
- Figur 2
- die Vorrichtung gemäß Fig. 1 in Draufsicht,
- Figur 3
- die Vorrichtung in Frontansicht.
Jeder Hubtisch 2 ist gelenkig mit dem oberen Teil des Hydraulikaggregates 4,4', und dessen unteres Ende ist mit dem Grundrahmen 3 gelenkig verbunden. Jeder Hubtisch 2 ist von zu den Ebenen x-x; x'-x' parallelen Ebenen zwischen Grundrahmen 3 und Hubtisch 2 in horizontaler Lage gelenkig verbundenen Lenkern 9.9' geführt. Die Achsen sowohl der Gelenke 6,6' sowie 7,7' an den Hydraulikaggregaten 4,4', als auch der Gelenke 8,8' an den Lenkern 9,9' sind zu den Ebenen x-x; x'-x' senkrecht ausgerichtet.
In alternativer Ausgestaltung der Vorrichtung kann beispielsweise vorgesehen sein, daß die Führung der Hubtische 2 mit je einer Doppel-Lenker-Anordnung ausgebildet ist.
- 1.
- Stranggießkokille
- 2.
- Hubtisch
- 3.
- Grundrahmen
- 4.
- Hydraulikaggregat
- 5.
- Ausleger
- 6.
- Gelenk oben
- 7.
- Gelenk unten
- 8.
- Gelenk
- 9.
- Lenker
- 10.
- Schmalseite
Claims (6)
- Vorrichtung zum Oszillieren einer Stranggießkokille (1), insbesondere für das Stranggießen von Dünnbrammen aus Stahl, umfassend eine oszillierbare Stranggießkokille (1), deren Oszillationsantrieb mit an einem ortsfesten Grundrahmen (3) angeordneten Hydraulikaggregaten (4,4') ausgebildet ist,
dadurch gekennzeichnet,daß die Stranggießkokille (1) auf zwei einzelnen Hubtischen angeordnet ist,daß der Hubtisch (2) mit dem oberen Teil (6) jedes Hydraulikaggregates (4,4') gelenkig, und dessen unteres Teil mit dem Grundrahmen (3) gelenkig verbunden ist,daß der Hubtisch (2) mit dem Grundrahmen (3) mittels gelenkig verbundenen Lenkern (9,9') geführt ist, unddaß die Achsen der Gelenke (6,6') sowie der Gelenke (7,7') an den Hydraulikaggregaten (4,4'), und die Achsen der Gelenke (8,8') an den Lenkern (9,9') parallel zueinander ausgerichtet sind. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Lenker (9, 9') verwindungssteife und mit hoher Quersteifigkeit ausgebildete Stahlprofile besitzen. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Lenker (9, 9') unter den Schmalseiten (10, 10') der Kokille (1) angeordnet sind. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Führung der Hubtische (2) mit je einer Doppel-Lenker-Anordnung ausgebildet ist. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß vier Hydraulikaggregate (4, 4') in zu den Schmalseiten (10, 10') der Kokille (1) parallelen Ebenen (x - x; x' - x') unter dem Hubtisch (2) angeordnet sind. - Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die Hydraulikaggregate (4,4') doppelt wirkende Servozylinder sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19906886 | 1999-02-19 | ||
DE19906886A DE19906886A1 (de) | 1999-02-19 | 1999-02-19 | Vorrichtung zu Oszillieren einer Stranggießkokille |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1029616A1 true EP1029616A1 (de) | 2000-08-23 |
EP1029616B1 EP1029616B1 (de) | 2004-07-07 |
Family
ID=7897952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00101546A Expired - Lifetime EP1029616B1 (de) | 1999-02-19 | 2000-01-27 | Vorrichtung zum Oszillieren einer Stranggiesskokille |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1029616B1 (de) |
AT (1) | ATE270596T1 (de) |
DE (2) | DE19906886A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1086762A1 (de) * | 1999-09-25 | 2001-03-28 | SMS Demag AG | Führung von Kokillen-Hubtischen einer Stranggiessanlage |
US7086449B2 (en) * | 2000-12-14 | 2006-08-08 | Sms Demag Aktiengesellschaft | Device for continuously casting metals, especially steel |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131715B4 (de) * | 2001-06-29 | 2010-03-18 | Sms Siemag Aktiengesellschaft | Vorrichtung zum Stranggießen von flüssigen Metallen, insbesondere von Stahl, mit auf einem Schwingrahmen angeordneter Stranggießkokille |
DE102006002929B4 (de) * | 2006-01-21 | 2012-10-04 | Sms Siemag Aktiengesellschaft | Bauteil für eine Stranggießvorrichtung |
DE102017201496A1 (de) | 2017-01-31 | 2018-08-02 | Sms Group Gmbh | Oszillationssystem für eine Stranggießkokille, und Verfahren zum Erzeugen einer Oszillationsbewegung einer Stranggießkokille |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010728A1 (de) * | 1978-10-27 | 1980-05-14 | Concast Holding Ag | Stranggiessanlage mit oszillierender Durchlaufkokille |
DE19541164A1 (de) * | 1995-11-04 | 1997-05-07 | Schloemann Siemag Ag | Oszillationseinrichtung für eine Stranggießkokille |
EP0732978B1 (de) * | 1993-12-03 | 1997-05-21 | MANNESMANN Aktiengesellschaft | Einrichtung zum stranggiessen von stahl |
EP0881015A1 (de) * | 1997-05-30 | 1998-12-02 | Sms Schloemann-Siemag Aktiengesellschaft | Vorrichtung zum Stranggiessen von Stahl |
DE19817701A1 (de) * | 1998-04-21 | 1999-10-28 | Schloemann Siemag Ag | Hubtisch mit Oszillationsantrieb für eine Stranggießeinrichtung |
-
1999
- 1999-02-19 DE DE19906886A patent/DE19906886A1/de not_active Withdrawn
-
2000
- 2000-01-27 AT AT00101546T patent/ATE270596T1/de active
- 2000-01-27 EP EP00101546A patent/EP1029616B1/de not_active Expired - Lifetime
- 2000-01-27 DE DE50006989T patent/DE50006989D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010728A1 (de) * | 1978-10-27 | 1980-05-14 | Concast Holding Ag | Stranggiessanlage mit oszillierender Durchlaufkokille |
EP0732978B1 (de) * | 1993-12-03 | 1997-05-21 | MANNESMANN Aktiengesellschaft | Einrichtung zum stranggiessen von stahl |
DE19541164A1 (de) * | 1995-11-04 | 1997-05-07 | Schloemann Siemag Ag | Oszillationseinrichtung für eine Stranggießkokille |
EP0881015A1 (de) * | 1997-05-30 | 1998-12-02 | Sms Schloemann-Siemag Aktiengesellschaft | Vorrichtung zum Stranggiessen von Stahl |
DE19817701A1 (de) * | 1998-04-21 | 1999-10-28 | Schloemann Siemag Ag | Hubtisch mit Oszillationsantrieb für eine Stranggießeinrichtung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1086762A1 (de) * | 1999-09-25 | 2001-03-28 | SMS Demag AG | Führung von Kokillen-Hubtischen einer Stranggiessanlage |
US7086449B2 (en) * | 2000-12-14 | 2006-08-08 | Sms Demag Aktiengesellschaft | Device for continuously casting metals, especially steel |
Also Published As
Publication number | Publication date |
---|---|
EP1029616B1 (de) | 2004-07-07 |
DE19906886A1 (de) | 2000-08-24 |
ATE270596T1 (de) | 2004-07-15 |
DE50006989D1 (de) | 2004-08-12 |
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