EP3013499A2 - Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung - Google Patents
Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtungInfo
- Publication number
- EP3013499A2 EP3013499A2 EP14731938.8A EP14731938A EP3013499A2 EP 3013499 A2 EP3013499 A2 EP 3013499A2 EP 14731938 A EP14731938 A EP 14731938A EP 3013499 A2 EP3013499 A2 EP 3013499A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- oscillation
- frequency
- side plate
- plate
- 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
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
-
- 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
- B22D11/051—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having oscillating 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
- B22D11/053—Means for oscillating the moulds
- B22D11/0535—Means for oscillating the moulds in a horizontal plane
-
- 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
- B22D11/166—Controlling or regulating processes or operations for mould oscillation
Definitions
- the present invention relates to a method and apparatus for oscillating a mold of a
- Continuous casting machine also called continuous casting mold.
- the invention relates to a method for
- the invention relates to a device for oscillating a mold of a continuous casting machine
- the mold having a substantially rectangular mold cavity, the mold comprising two narrow side plates and two wide side plates;
- the strand exhibits so-called oscillation marks, which are the strand quality due to transverse cracks, casting powder, locally changed heat dissipation or unfavorable microstructure negatively influence. It is further known that the continuous casting process or the quality of the strand by the use of optimized casting powder or by optimized parameters of Kokillenoszillation
- Curve shape can be improved.
- the device according to the invention should be simpler than known devices for a two-dimensional oscillation.
- Vibrations in the vertical and horizontal directions are different. As a result, the length of the locus is extended at an oscillation cycle, which has a very positive effect on the lubricating effect of the casting powder.
- the strand and the broadside plate are loaded very evenly.
- a broad side plate of the mold is oscillated in the vertical direction with the first frequency f v , either an integer multiple of the second frequency of the
- horizontal oscillation f H is (for example, two, three, four times, etc.), or in which the second frequency f H is an integer multiple of the first frequency of the vertical oscillation f v .
- Oscillation cycle is achieved, if applicable - the first frequency f v is not an integer multiple of the second frequency f H , f v ⁇ nf H with n E ⁇ 2,3,4, 5 ... ⁇ , or
- the second frequency f H is not an integer
- Wide side plate preferably both wide side plates, of the mold horizontally in the width direction of the wide side plate (i.e., in the width direction of the strand, wherein the
- Width direction is normal to the casting direction and thickness direction) oscillates.
- the amount of velocity is> 0, ⁇ v ⁇ > 0, it ensures that the trajectory of the broadside plate is smooth and has no dead spots.
- the direction reversal of the mold which is particularly stressful for the lubrication of the strand, is avoided.
- the casting speed - and thus the productivity - can be increased. Since the frequency of the oscillation is cubic in the
- the energy consumption for the horizontal oscillation is particularly low when the first frequency f v is greater than the second frequency f H , ie, f v > f H.
- the amplitude of the vertical oscillation is greater than or equal to the amplitude of the horizontal oscillation. This can also reduce the energy consumption for the horizontal oscillation.
- the two broad side plates of the mold oscillate in opposite directions, ie have a phase difference of substantially 180 °. Due to the opposite movements of the mass balance of the mold is improved.
- the two broad side plates of the mold oscillate in opposite directions, ie have a phase difference of substantially 180 °. Due to the opposite movements of the mass balance of the mold is improved.
- the two broad side plates of the mold oscillate in opposite directions, ie have a phase difference of substantially 180 °. Due to the opposite movements of the mass balance of the mold is improved.
- the two broad side plates of the mold oscillate in opposite directions, ie have a phase difference of substantially 180 °. Due to the opposite movements of the mass balance of the mold is improved.
- Wide side plates of the mold oscillate in the same direction, i. have a phase difference of substantially 0 °.
- the method according to the invention is used in a straight or a curved mold.
- the method is not limited to vertically oscillating molds; Rather, it could also for horizontally oscillating molds (so-called.
- the object of the invention is also achieved by the device mentioned, wherein a second
- Oscillation device for oscillation of at least one
- Wide side plate of the mold is provided opposite the adjacent narrow side plates in the horizontal direction, and the wide side plate slidable relative to the
- Wide side plate oscillates harmoniously. It is particularly preferred if the vertical oscillation is also harmonious.
- the device according to the invention has at least one second oscillation device for horizontal oscillation of at least one
- Narrow side plates in the width direction of the wide side plate By the oscillation of the mold in vertical and horizontal direction is improved at the same casting speed, the lubricating effect of the casting powder on the strand.
- each of the two wide side plates is assigned its own second oscillation device for horizontal oscillation in the width direction. As a result, the mass balance of the mold can be improved.
- the first oscillating device at least a first
- Oscillating means results when the mold comprises a mold frame and the second oscillating means comprises a second oscillating drive, wherein the second
- Wide side plates can be reduced if a second elastic element between the mold frame and the
- Wide side plate is arranged, and the wide side plate can be offset by the second oscillating drive relative to the vertically oscillating mold frame in a horizontal oscillation in the width direction.
- the second elastic element is a spring band or a helical spring.
- Vorblockformate it is advantageous if a first and / or a second oscillation drive is a linear electric motor. Due to the high power density, it is advantageous if the electric linear motor is a piezoelectric actuator. For larger formats, it is expedient if a first and / or a second oscillation drive is a hydraulic linear motor, such as a hydraulic cylinder.
- Narrow side plates sliding surfaces preferably made
- Sintered metal which allow a relative movement.
- Oscillation can also be kept low, when the first wide side plate with the fixed side and the second wide side plate are connected to the loose side of the Kokillenrahmens, the Losseite is connected via a hydraulic clamping unit with the fixed side, and
- the clamping force of the clamping unit is preferably hydraulically adjustable.
- the clamping force can be e.g. hydraulically by means of the loading of the clamping unit by different high hydraulic pressures, easily adjusted.
- one-dimensional (1 D) oscillation 2a, 2b each show a representation of a non-inventive trajectory of a broadside plate at a
- Fig. 3-4 is a representation of a variant of the
- FIG. 5 shows various perspective views (FIG. 5 obliquely from above, FIG. 6 obliquely from below, FIG
- FIG. 8 with a
- FIG. 1 shows a locus curve (also called movement path) for a broad side of a vertically oscillating mold according to the prior art in a one-dimensional oscillation. From the locus, it is immediately apparent that the direction of movement of the mold - and thus also of the broad side plate - reverses at top dead center OT and bottom dead center UT, respectively; further applies to the
- Strand shell or the casting powder which is to ensure adequate lubrication of the strand in the mold, particularly high loads in these points.
- FIGS. 2a, 2b show a noninventive embodiment
- FIG. 2 a shows the time sequence of
- FIG. 2b shows the locus of the movement path. For the trajectory in
- the locus in Figure 2b has two distinct dead centers OT, UT, so that the strand is heavily loaded at these points.
- 3a, 3b show the trajectory and the locus of a broad side of a mold for slab cross sections, which oscillates two-dimensionally (ie, vertically and horizontally in the width direction of the broad side plate) according to the invention.
- FIGS. 4a, 4b show a further invention
- Nyquist plot shows that the trajectory does not have dead points and is significantly longer in comparison to FIGS. 3a, 3b (neither f H / fv nor f v / f H is an integer multiple). It is therefore extremely cheap.
- G thinkpulvers improved or reduces the friction between the mold and the strand.
- FIG. 5 schematically shows a mold 1 of a continuous casting machine for slab formats.
- the oscillation device for the vertical oscillation of the mold including the stationary support structure, the spring strips between the
- MSTS The Making, Shaping and Treating of Steel
- FIG. 8 shows the second oscillation device 5 in greater detail.
- a rectangular, the two Breitrate- 3, 3a, 3b and narrow side plates 2 of the mold 1 enclosing mold frame 6 is brought by the not-shown first oscillating means in a vertical oscillation V.
- the two narrow side plates 2 and the two wide side plates 3 form the rectangular mold cavity 4 (for the invention, it does not matter if the
- Mold cavity 4 is square or not; in particular, a wide-side plate does not have to be longer than one
- Oscillating 5a, 5b is a broad side 3a, 3b relative to the vibrating in the vertical direction V.
- the second is based
- the broad side plate 3 is formed on the mold frame 6 and acts as a spring band pronounced second elastic element 8.
- the broad side plate 3 is brought together with the support plate 10 and the water tank 11 of the mold 1 in a horizontal oscillation H transverse to the thickness direction of the strand.
- the adjoining the broad side plate 3 narrow side plates 2 are not oscillated in the horizontal direction, but oscillate together with the mold frame 6 in the vertical direction V.
- the plates each have sliding surfaces 12 made of sintered metal.
- the clamping unit 15 incl.
- the non-illustrated hydraulic clamping cylinder ensures that the
- Mold cavity 4 is sealed fluid-tight, but without causing excessive friction between the plates.
- each broadside plate 3a, 3b associated with a separate second oscillation device 5 and thus the two wide side plates in opposite directions
- the water box 11 either does not rest on the support structure 6 (e.g., there can be a gap between the water box 11 and the water tank 11)
- Support structure 6 may be provided), or it is
- FIG. 6 the mold 1 is shown obliquely from below, wherein the forming in the mold 1, not
- strand is supported by a plurality of castors 16.
- Los side 14 (see FIG. 6) of the mold frame 6.
- the loose side 14 of the mold 1 is braced by the two clamping units 15 with the fixed side 13.
- the clamping force is hydraulically adjustable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50425/2013A AT514495B1 (de) | 2013-06-27 | 2013-06-27 | Zweidimensionale Oszillation einer Stranggießkokille |
| PCT/EP2014/062303 WO2014206761A2 (de) | 2013-06-27 | 2014-06-13 | Zweidimensionale oszillation einer stranggiesskokille |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3013499A2 true EP3013499A2 (de) | 2016-05-04 |
| EP3013499B1 EP3013499B1 (de) | 2017-08-09 |
Family
ID=50980283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14731938.8A Active EP3013499B1 (de) | 2013-06-27 | 2014-06-13 | Zweidimensionale oszillation einer stranggiesskokille, verfahren sowie vorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3013499B1 (de) |
| KR (1) | KR102195755B1 (de) |
| AT (1) | AT514495B1 (de) |
| WO (1) | WO2014206761A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250058374A1 (en) * | 2021-12-22 | 2025-02-20 | Primetals Technologies Austria GmbH | Die for a continuous casting installation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2585434B2 (ja) * | 1989-07-25 | 1997-02-26 | 住友重機械工業株式会社 | 連続鋳造設備の鋳型振動装置 |
| US5579824A (en) * | 1993-11-29 | 1996-12-03 | Kawasaki Steel Corporation | Continuous casting process with vertical mold oscillation |
| JP2857050B2 (ja) * | 1993-12-29 | 1999-02-10 | 川崎製鉄株式会社 | 連続鋳造設備における水平振動鋳型 |
| DE19718235A1 (de) * | 1997-04-30 | 1998-11-05 | Schloemann Siemag Ag | Stranggießkokille zum Gießen von Brammen insbesondere Dünnbrammen |
| JP2000042691A (ja) | 1998-07-31 | 2000-02-15 | Kawasaki Steel Corp | 連続鋳造用鋳型の振動方法 |
| WO2005009638A1 (ja) * | 2003-07-24 | 2005-02-03 | Sumitomo Metal Industries, Ltd. | マグネシウム合金薄板の製造方法およびその製造装置 |
| DE102004020130A1 (de) * | 2004-04-24 | 2005-11-17 | Sms Demag Ag | Vorrichtung für die Aufnahme einer Stranggießkokille auf einem Hubtisch zum Gießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen |
-
2013
- 2013-06-27 AT ATA50425/2013A patent/AT514495B1/de active
-
2014
- 2014-06-13 KR KR1020167002252A patent/KR102195755B1/ko active Active
- 2014-06-13 EP EP14731938.8A patent/EP3013499B1/de active Active
- 2014-06-13 WO PCT/EP2014/062303 patent/WO2014206761A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014206761A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105517729A (zh) | 2016-04-20 |
| WO2014206761A2 (de) | 2014-12-31 |
| KR102195755B1 (ko) | 2020-12-29 |
| EP3013499B1 (de) | 2017-08-09 |
| WO2014206761A3 (de) | 2015-04-23 |
| KR20160027047A (ko) | 2016-03-09 |
| AT514495A1 (de) | 2015-01-15 |
| AT514495B1 (de) | 2016-05-15 |
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