EP1569767A1 - Kokillenoszillation für hohe giessgeschwindigkeit - Google Patents
Kokillenoszillation für hohe giessgeschwindigkeitInfo
- Publication number
- EP1569767A1 EP1569767A1 EP03782357A EP03782357A EP1569767A1 EP 1569767 A1 EP1569767 A1 EP 1569767A1 EP 03782357 A EP03782357 A EP 03782357A EP 03782357 A EP03782357 A EP 03782357A EP 1569767 A1 EP1569767 A1 EP 1569767A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- force
- spreading
- oscillation
- spring
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 14
- 230000010355 oscillation Effects 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000002730 additional effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 9
- 238000009749 continuous casting Methods 0.000 description 6
- 230000003534 oscillatory effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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 method for driving a mold in oscillation, in particular with the frequency and lifting height required for a relatively high casting speed, the mold being supported in an oscillating manner from below with a support element and the support element (10) being set in vertical oscillation motion.
- the invention also relates to an apparatus for performing the method.
- the vertical oscillation movement of continuous casting molds prevents the cast strand from sticking to the surface of the mold and thus tearing open the sensitive strand shell after leaving the mold.
- the speed of the mold during the downward movement must be greater than the speed at which the strand is drawn off, which is referred to as a negative strip.
- BESTATIGUNGSKOPIE Oscillation arithmetically reached the value for g of 9.81 m / s 2 .
- the complete or partial compensation of the mold weight, for example by spring elements, also leads to a reversal of the direction of force application far below g.
- a block mold with an oscillation device is known from DE-OS 22 48 066.
- the springs carrying the molds and the drive units for the oscillation must be dimensioned very large because the entire mold, that is to say the actual shaping walls including the cooling system, must be carried and moved.
- the continuous casting mold is mounted on springs which extend at right angles to the casting direction and are clamped on both sides and is connected to an oscillation drive which is arranged on a support frame and is designed as a servo-hydraulic cylinder.
- the servo hydraulic cylinders are arranged laterally next to the continuous casting mold in a longitudinal sectional plane through the continuous casting mold and are connected to the supporting frame without play such that the Continuous casting mold is attached to the springs at one point and the free ends of the springs are firmly connected to the support frame.
- EP 0 953 391 A1 describes a lifting table with an oscillation drive for a continuous caster.
- the lifting table is formed with guide blocks running below its table level, between which a stationary clamping block is arranged.
- at least two individual, resiliently soft leaf springs are clamped below each other below or below the table level on both sides of the clamping block between or in this and the guide block adjacent to it.
- the object of the present invention is to use constructive measures to ensure that the direction of the resulting total force of weight, acceleration and friction does not reverse during an oscillation movement.
- the support element provided for generating the oscillation is supplemented by components which can be cooperated therewith and which exert an additional force on the mold from the outside.
- One embodiment of the invention provides that spreading springs are used as additional components, which press the mold from above with elastic reactive force to form a force-fitting contact against the support element and, together with it, set it into oscillatory movements required for high casting speeds.
- the design of the mold drive according to the invention has the great advantage that the direction of the resulting total force changes Weight force, acceleration force, and friction force are not reversed during the oscillation movement. This ensures the desired casting reliability for comparatively high casting speeds.
- the additional force can act constantly, but it can also change in time or depending on the position and direction of movement of the mold oscillation.
- the force can be applied mechanically, hydraulically, pneumatically, magnetically or electromagnetically.
- the force can act continuously or be controlled or regulated discontinuously, for example by means of an intermediate layer which can be changed in thickness and which is preferably changed hydraulically during operation.
- a device for driving a mold in oscillation with a support element for the mold that can be oscillated from below to carry out the method according to the invention provides means according to the invention for applying an additional force to the mold in cooperation with oscillating movements of the support element.
- the means are spreading spring elements which, on the one hand, are clamped downwards against the mold table or the mold, and upwards against elements of the steel structure or the base plate, which are clamped between them with an adjustable spreading force and are therefore an additional one from outside and above Apply force to the mold.
- the means is a steel spring, or that the means is a rubber spring with an inner air cushion, the progression of which can be adjusted with the aid of the air pressure.
- the internal air pressure of the rubber spring can be adjusted to regulate the spring progression during operation with great advantage.
- the figure shows:
- the aim of constructive measures is to ensure that the direction of the resulting total force of weight, acceleration force and frictional force does not reverse during the oscillation movement.
- the support element 10 provided as a means for generating the oscillation is supplemented by components which can be cooperated with it and which exert an additional force 12 on the mold 1 from outside and above.
- spreading springs 3 are used, which can be clamped with predeterminable spreading force on both sides of the mold 1, preferably to the narrow sides, between the mold table 5 and steel components 2 of the steel frame of the mold or the base plate 8 and thus an additional restoring force 12 from the outside and apply on top of the mold 1.
- the additional force 12 of the spreading springs 3 on the mold table 5 is constant.
- the measure can also be used, that the spreading force of the spreading springs 3 is changed laterally or in accordance with the position and / or direction of movement of the mold oscillation.
- the mold table 5 is guided by means of the vertical guide 6 in the bearing block 7 so that it can oscillate in the vertical direction.
- the spreading spring element 3 can optionally be a steel spiral spring. However, it can also comprise a rubber spring with an inner air cushion, the progression of which can be adjusted with the aid of the air pressure.
- the internal air pressure of the rubber expansion spring 3 can be adjustable during operation to adjust the spring progression.
- the spreading force 12 can be applied mechanically or hydraulically or pneumatically or magnetically or electromagnetically by correspondingly designed components or components.
- the spreading force of the spreading springs 3 can be varied, for example hydraulically adjustable, by a thickness-adjustable or height-variable intermediate layer or base 4, for example, during operation.
- the corresponding operating state can thus be optimized without difficulty on the basis of the operating result.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10258538 | 2002-12-14 | ||
DE10258538 | 2002-12-14 | ||
DE10302510A DE10302510A1 (de) | 2002-12-14 | 2003-01-23 | Kokillenoszillation für hohe Gießgeschwindigkeit |
DE10302510 | 2003-01-23 | ||
PCT/EP2003/014003 WO2004054741A1 (de) | 2002-12-14 | 2003-12-10 | Kokillenoszillation für hohe giessgeschwindigkeit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1569767A1 true EP1569767A1 (de) | 2005-09-07 |
EP1569767B1 EP1569767B1 (de) | 2007-11-21 |
Family
ID=32598068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03782357A Expired - Lifetime EP1569767B1 (de) | 2002-12-14 | 2003-12-10 | Kokillenoszillation für hohe giessgeschwindigkeit stranggiessen, verfahren und vorrichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1569767B1 (de) |
AU (1) | AU2003290004A1 (de) |
DE (1) | DE50308664D1 (de) |
WO (1) | WO2004054741A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0041196A3 (de) * | 1980-05-30 | 1982-01-13 | Concast Holding Ag | Verfahren und Vorrichtung zum Oszillieren einer Stranggiesskokille |
GB2108878A (en) * | 1981-11-06 | 1983-05-25 | British Steel Corp | Vibration of a continuous casting machine mould |
FR2606305B3 (fr) * | 1986-11-10 | 1988-12-02 | Siderurgie Fse Inst Rech | Procede et dispositif pour l'equilibrage de lingotiere de coulee continue |
JPH01224143A (ja) * | 1988-03-02 | 1989-09-07 | Kobe Steel Ltd | 鋳型振動装置 |
JPH0292437A (ja) * | 1988-09-29 | 1990-04-03 | Aichi Steel Works Ltd | 連続鋳造用モールドの振動装置 |
US5488986A (en) * | 1994-07-20 | 1996-02-06 | Sms Concast Inc. | Mold oscillator for continuous casting apparatus |
AT406456B (de) * | 1997-09-08 | 2000-05-25 | Voest Alpine Ind Anlagen | Stranggiesseinrichtung |
JP2000135548A (ja) * | 1998-10-30 | 2000-05-16 | Hitachi Zosen Corp | 連続鋳造設備のモールド振動装置 |
-
2003
- 2003-12-10 WO PCT/EP2003/014003 patent/WO2004054741A1/de active IP Right Grant
- 2003-12-10 DE DE50308664T patent/DE50308664D1/de not_active Expired - Lifetime
- 2003-12-10 EP EP03782357A patent/EP1569767B1/de not_active Expired - Lifetime
- 2003-12-10 AU AU2003290004A patent/AU2003290004A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004054741A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2003290004A1 (en) | 2004-07-09 |
WO2004054741A1 (de) | 2004-07-01 |
EP1569767B1 (de) | 2007-11-21 |
DE50308664D1 (de) | 2008-01-03 |
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