CA2563230A1 - Device for accommodating a continuous casting mold on an elevating table for casting molten metals, in particularly molten steel materials - Google Patents
Device for accommodating a continuous casting mold on an elevating table for casting molten metals, in particularly molten steel materials Download PDFInfo
- Publication number
- CA2563230A1 CA2563230A1 CA002563230A CA2563230A CA2563230A1 CA 2563230 A1 CA2563230 A1 CA 2563230A1 CA 002563230 A CA002563230 A CA 002563230A CA 2563230 A CA2563230 A CA 2563230A CA 2563230 A1 CA2563230 A1 CA 2563230A1
- Authority
- CA
- Canada
- Prior art keywords
- elevating table
- frame
- continuous casting
- strand
- cast
- 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.)
- Abandoned
Links
- 230000003028 elevating effect Effects 0.000 title claims abstract description 37
- 238000009749 continuous casting Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 title claims abstract description 9
- 238000005266 casting Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 7
- 239000010959 steel Substances 0.000 title claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 150000002739 metals Chemical class 0.000 title claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000003534 oscillatory effect Effects 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims abstract description 3
- 230000010355 oscillation Effects 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000573 anti-seizure effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000007921 spray Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention concerns a device for accommodating a continuous casting mold (1) on an elevating table for casting molten metals, particularly molten steel materials, comprising a number of hydraulic oscillating drives (3), which set the elevating table in oscillatory motion. This device of the aforementioned type is modified by two independent elevating table sides in such a manner that the elevating table (8) is provided with a frame-like and one-piece design and forms an inner space (8a), which remains open for the passage of the casting (4) and which is correspondingly dimensioned. The oscillating drives (3) are placed in the corners (8b) inside the frame surface (8c) and, while being laterally offset in pairs, can be controlled in a fully synchronized manner with regard to an arched, or together, for a perpendicular drawing out movement (9).
Description
DEVICE FOR ACCOMODATING A CONTINUOUS CASTING MOLD ON AN
ELEVATING TABLE FOR CASTING MOLTEN METALS, IN PARTICULAR
MOLTEN STEEL MATERIALS
The present invention relates to a device for accommodating a continuous casting mold on an elevating table for casting molten metals, in particular molten steel materials, which is set in an oscillatory motion with several hydraulic oscillation drives during drawing out of a partially solidified cast strand, wherein frequency and amplitude are adapted to a respective cross-section, e.g., of slab, thin strand, bloom, beam blank or billet strand cross-section, and to a respective cast material and/or cast parameter (cast speed), and guide members are connected with stationary articulated means for an optimal oscillation curve of the elevating table.
The above-described device is disclosed in EP 1 029 616 Al. This device serves in particular for casting thin strands from steel. It includes an oscillating continuous casting mold positioned on two elevating tables arranged on opposite sides of the cast strand. The oscillation drive is formed by piston-cylinder units in form of servocylinders supported on a base frame. Each elevating table side is hingedly connected with a head of a piston-cylinder unit. The foots of the piston cylinder units are hingedly connected, respectively, with the base frame. Each elevating table side is guided with respect to the base frame with a hingedly connected guide bar. The axes of the hinges and of hinges at the heads of the piston-cylinder units and the axes of the hinges of the guide bars extend parallel to each other.
ELEVATING TABLE FOR CASTING MOLTEN METALS, IN PARTICULAR
MOLTEN STEEL MATERIALS
The present invention relates to a device for accommodating a continuous casting mold on an elevating table for casting molten metals, in particular molten steel materials, which is set in an oscillatory motion with several hydraulic oscillation drives during drawing out of a partially solidified cast strand, wherein frequency and amplitude are adapted to a respective cross-section, e.g., of slab, thin strand, bloom, beam blank or billet strand cross-section, and to a respective cast material and/or cast parameter (cast speed), and guide members are connected with stationary articulated means for an optimal oscillation curve of the elevating table.
The above-described device is disclosed in EP 1 029 616 Al. This device serves in particular for casting thin strands from steel. It includes an oscillating continuous casting mold positioned on two elevating tables arranged on opposite sides of the cast strand. The oscillation drive is formed by piston-cylinder units in form of servocylinders supported on a base frame. Each elevating table side is hingedly connected with a head of a piston-cylinder unit. The foots of the piston cylinder units are hingedly connected, respectively, with the base frame. Each elevating table side is guided with respect to the base frame with a hingedly connected guide bar. The axes of the hinges and of hinges at the heads of the piston-cylinder units and the axes of the hinges of the guide bars extend parallel to each other.
Periodic oscillation movements of the continuous casting mold cause friction between the continuous casting mold and the cast strand or its strand shell and which can be prevented with lubricating anti-seizure means. At different speeds between the continuous casting mold and the cast speed, an oscillating excitation of the entire cast strand and/or the bath level in the continuous casting mold take place, in particular at sinusoidal oscillations, which is undesirable. Such oscillation can be damped with oscillation curves that deviate from sinusoidal curves. Such deviating curves advantageously influence also oscillation marks, their depth and shape on the strand surface and improve the surface quality.
A prerequisite for generation and transmission of suitable oscillation curves is the construction and the system of the device itself that accommodates the continuous casting mold. The generation of oscillation (e.g., described in EP
622 B 1 ) is effected with a function generator which produces oscillations with a preselected oscillation amplitude signal at a frequency that is greater than the natural frequency of the device.
An object of the invention is to provide a combination of an elevating table and a continuous casting mold and which would be capable to provide for transmission of functionally correct oscillations with a high precision.
The stated object is achieved according to the invention by forming the elevating table as a one-piece frame-shaped table with an inner space for passing through the cast strand and correspondingly dimensioned, and in that the oscillation drives are arranged in corners inside a frame surface and are controlled in a fully synchronized manner with a lateral pairwise offset with regard to an arched, or together, for a perpendicular straight, draw-out motion. Thereby an increased stiffness of the device is achieved, so that the influence of the device on the oscillation behavior of the continuous casting mold has changed in such a way that critical frequencies are not reached any more, and the predetermined frequencies and amplitudes are reliably and precisely implemented. The practical experience has shown that a complete synchronization of two or more hydraulic drives can be achieved. An overall low height of the device, e.g., contributes thereto. In addition, another advantage is a possibility of subsequent modernization of the existing devices into new ones.
According to one of the embodiments, the continuous casting mold with its cooling units is directly placed on the frame-shaped elevating table. The frame-shaped elevating table provides therefore a satisfactory bearing surface.
According to a further development, the frame-shaped elevating table is provided with cooling channels connected with a cooling medium network. The advantage consists in a narrow inner space of rings about the cast strand cross-section with a small spacing. At a smaller cooling capacity, the spacing from a hot cast strand is increased. In addition, the cooling capacity is increased to a certain extent as a result of the otherwise available, spray cooling.
A further improvement consists in that the stationary articulation means of the guide members consists of leaf springs in form of an assembly hingedly supported on the elevating table and a stationary base frame.
In the drawing, an embodiment, which will be described in detail below, is shown.
The single drawing figure shows a perspective view of a combination continuous casting mold/elevating table which are supported on a base frame.
A device for accommodating a continuous casting mold 1 with a water box 1 a and a narrow side 1 b includes, according to the state of the art, two separate elevating tables 2 and 2 for casting molten metals, in particular molten steel materials. The elevating tables 2, 2 are set in an oscillatory motion by several oscillation drives 3 upon drawing out of a partially solidified cast strand 4.
The frequency and the amplitude are adapted to a strand cross-section 5 of, e.g., slab strand, thin strand, bloom strand, beam blank strand or billet strand, cross-section 5 and in accordance with a respective cast material. In addition, there are provided guide members 6 which connect the elevating tables 2, 2 with a stationary articulation joint 7 for an optimal oscillation curve.
The present invention modifies the known system by formation of one-piece, frame-shaped elevating table 8. Therefore, the elevating table 8 has an inner space 8a which is kept open for passing of the cast strand 4 and is accordingly dimensioned. The oscillation drives 3 are formed as piston-cylinder units 3a, with those formed as servo-cylinder units 3b being arranged in corners 8b inside the frame surface 8c, and are controlled with a pairwise lateral offset with regard to an arched, or together, for a perpendicular, straight, draw-out movement 9. The synchronization of two or more hydraulic drives was proved to be practical with such a construction and is, therefore, possible. The deviation of several hundredth mm between both elevating table sides can be achieved.
The so-formed elevating table 8 lifts the continuous casting mold 1 with all its cooling units 10 and, therefore, can be easily formed as a frame-shaped elevating table 8.
For protection from the radiating heat of the cast strand 4, the frame-shaped elevating table 8 is provided with cooling channels connected with a cooling medium network.
From many possible embodiments of guide means of the elevating table 8, an advantageous construction was selected according to which the articulated join of the guide members 6 is formed of leaf springs 7a in form of spring assemblies 7b hingedly supported on the elevating table 8 and a stationary base frame 11.
List of Reference Numerals 1. Continuous Casting Mold 1 a. Water box 1 b. Narrow side (2, 2. Known elevating tables) 3. Oscillation drive 3a: piston-cylinder unit _ _ _ _ . ._ _ 3b. Servo-cylinder unit 4. (partially solidified) cast strand 5. Strand cross-section 6. Guide member 7. Stationary articulated joint 7a. Leaf spring 7b. Assembly 8. Frame-shaped one-piece elevating table 8a. Inner space 8b. Corners 8c. Frame surface 9. Draw-out movement 10.Cooling units 11.Base frame
A prerequisite for generation and transmission of suitable oscillation curves is the construction and the system of the device itself that accommodates the continuous casting mold. The generation of oscillation (e.g., described in EP
622 B 1 ) is effected with a function generator which produces oscillations with a preselected oscillation amplitude signal at a frequency that is greater than the natural frequency of the device.
An object of the invention is to provide a combination of an elevating table and a continuous casting mold and which would be capable to provide for transmission of functionally correct oscillations with a high precision.
The stated object is achieved according to the invention by forming the elevating table as a one-piece frame-shaped table with an inner space for passing through the cast strand and correspondingly dimensioned, and in that the oscillation drives are arranged in corners inside a frame surface and are controlled in a fully synchronized manner with a lateral pairwise offset with regard to an arched, or together, for a perpendicular straight, draw-out motion. Thereby an increased stiffness of the device is achieved, so that the influence of the device on the oscillation behavior of the continuous casting mold has changed in such a way that critical frequencies are not reached any more, and the predetermined frequencies and amplitudes are reliably and precisely implemented. The practical experience has shown that a complete synchronization of two or more hydraulic drives can be achieved. An overall low height of the device, e.g., contributes thereto. In addition, another advantage is a possibility of subsequent modernization of the existing devices into new ones.
According to one of the embodiments, the continuous casting mold with its cooling units is directly placed on the frame-shaped elevating table. The frame-shaped elevating table provides therefore a satisfactory bearing surface.
According to a further development, the frame-shaped elevating table is provided with cooling channels connected with a cooling medium network. The advantage consists in a narrow inner space of rings about the cast strand cross-section with a small spacing. At a smaller cooling capacity, the spacing from a hot cast strand is increased. In addition, the cooling capacity is increased to a certain extent as a result of the otherwise available, spray cooling.
A further improvement consists in that the stationary articulation means of the guide members consists of leaf springs in form of an assembly hingedly supported on the elevating table and a stationary base frame.
In the drawing, an embodiment, which will be described in detail below, is shown.
The single drawing figure shows a perspective view of a combination continuous casting mold/elevating table which are supported on a base frame.
A device for accommodating a continuous casting mold 1 with a water box 1 a and a narrow side 1 b includes, according to the state of the art, two separate elevating tables 2 and 2 for casting molten metals, in particular molten steel materials. The elevating tables 2, 2 are set in an oscillatory motion by several oscillation drives 3 upon drawing out of a partially solidified cast strand 4.
The frequency and the amplitude are adapted to a strand cross-section 5 of, e.g., slab strand, thin strand, bloom strand, beam blank strand or billet strand, cross-section 5 and in accordance with a respective cast material. In addition, there are provided guide members 6 which connect the elevating tables 2, 2 with a stationary articulation joint 7 for an optimal oscillation curve.
The present invention modifies the known system by formation of one-piece, frame-shaped elevating table 8. Therefore, the elevating table 8 has an inner space 8a which is kept open for passing of the cast strand 4 and is accordingly dimensioned. The oscillation drives 3 are formed as piston-cylinder units 3a, with those formed as servo-cylinder units 3b being arranged in corners 8b inside the frame surface 8c, and are controlled with a pairwise lateral offset with regard to an arched, or together, for a perpendicular, straight, draw-out movement 9. The synchronization of two or more hydraulic drives was proved to be practical with such a construction and is, therefore, possible. The deviation of several hundredth mm between both elevating table sides can be achieved.
The so-formed elevating table 8 lifts the continuous casting mold 1 with all its cooling units 10 and, therefore, can be easily formed as a frame-shaped elevating table 8.
For protection from the radiating heat of the cast strand 4, the frame-shaped elevating table 8 is provided with cooling channels connected with a cooling medium network.
From many possible embodiments of guide means of the elevating table 8, an advantageous construction was selected according to which the articulated join of the guide members 6 is formed of leaf springs 7a in form of spring assemblies 7b hingedly supported on the elevating table 8 and a stationary base frame 11.
List of Reference Numerals 1. Continuous Casting Mold 1 a. Water box 1 b. Narrow side (2, 2. Known elevating tables) 3. Oscillation drive 3a: piston-cylinder unit _ _ _ _ . ._ _ 3b. Servo-cylinder unit 4. (partially solidified) cast strand 5. Strand cross-section 6. Guide member 7. Stationary articulated joint 7a. Leaf spring 7b. Assembly 8. Frame-shaped one-piece elevating table 8a. Inner space 8b. Corners 8c. Frame surface 9. Draw-out movement 10.Cooling units 11.Base frame
Claims (4)
1. A device for accommodating a continuous casting mold (1) on an elevating table (2) for casting molten metals, in particular molten steel materials, which is set in an oscillatory motion with several hydraulic oscillation drives (3) during drawing out of a partially solidified cast strand (4), wherein frequency and amplitude are adapted to a respective cross-section (5), e.g., of slab, thin strand, bloom; beam blank or billet strand cross-section (5), and to a respective cast material and/or cast parameter such as, e.g., cast speed, guide member (6) are connected with stationary articulated means (7) for an optimal oscillation curve of the elevating table, characterized in that the elevating table (8) is formed as one-piece frame-shaped table with an inner space (8a) for passing through the cast strand (4) and correspondingly dimensioned, and in that the oscillation drives (3) are arranged in corners (8b) inside a frame surface (8c) and are controlled in a fully synchronized manner with a lateral pairwise offset with regard to an arched, or together, for a perpendicular straight draw-out movement.
2. A device according to claim 1, characterized in that the continuous casting mold (1) with its cooling units (1a) is directly placed on the frame-shaped elevating table (8).
3. A device according to claims 1 and 2, characterized in that the frame-shaped elevating table (8) is provided with cooling channels connected with a-cooling-medium-network.
4. A device according to one of claims 1 through 3, characterized in that the stationary articulation means (7) of the guide members (6) consists of leaf springs (7a) in form of an assembly (7b) hingedly supported on the elevating table (8) and a stationary base frame (11).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004020130.7 | 2004-04-24 | ||
| DE102004020130A DE102004020130A1 (en) | 2004-04-24 | 2004-04-24 | Apparatus for receiving a continuous casting mold on a lifting table for casting liquid metals, in particular liquid steel materials |
| PCT/EP2005/003726 WO2005105342A1 (en) | 2004-04-24 | 2005-04-08 | Device for accommodating a continuous casting mold on an elevating table for casting molten metals, particularly molten steel materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2563230A1 true CA2563230A1 (en) | 2005-11-10 |
Family
ID=34963802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002563230A Abandoned CA2563230A1 (en) | 2004-04-24 | 2005-04-08 | Device for accommodating a continuous casting mold on an elevating table for casting molten metals, in particularly molten steel materials |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20070289716A1 (en) |
| EP (1) | EP1750871A1 (en) |
| JP (1) | JP2007534497A (en) |
| KR (1) | KR20070001192A (en) |
| CN (1) | CN1946498A (en) |
| CA (1) | CA2563230A1 (en) |
| DE (1) | DE102004020130A1 (en) |
| RU (1) | RU2006134288A (en) |
| WO (1) | WO2005105342A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328888B (en) * | 2011-09-15 | 2013-12-25 | 莱芜钢铁集团有限公司 | Hydraulic servo synchronous lifting device and control method thereof |
| ITMI20112292A1 (en) * | 2011-12-16 | 2013-06-17 | Arvedi Steel Engineering S P A | SUPPORT AND OSCILLATION DEVICE FOR LINGOTTER IN CONTINUOUS CASTING SYSTEMS |
| CN103331424B (en) * | 2013-05-08 | 2015-02-25 | 中国重型机械研究院股份公司 | Double-vibrating unit arc slab continuous casting machine crystallizer hydraulic vibrating mechanism |
| AT514495B1 (en) * | 2013-06-27 | 2016-05-15 | Primetals Technologies Austria GmbH | Two-dimensional oscillation of a continuous casting mold |
| KR101594654B1 (en) * | 2013-12-20 | 2016-02-16 | 주식회사 포스코 | Mold vibrated apparatus for continuous caster |
| DE102014202404A1 (en) | 2014-02-11 | 2015-08-13 | Sms Siemag Ag | Oscillation device for a continuous casting mold and various test methods |
| DE102017201496A1 (en) * | 2017-01-31 | 2018-08-02 | Sms Group Gmbh | An oscillating system for a continuous casting mold, and a method for generating an oscillatory movement of a continuous casting mold |
| CN108145102A (en) * | 2017-12-18 | 2018-06-12 | 中冶连铸技术工程有限责任公司 | A kind of hydraulic vibration device applied to multislab conticaster |
| CN113680981B (en) * | 2021-07-30 | 2023-10-27 | 上海二十冶建设有限公司 | Positioning tool for crystallizer vibration device of continuous casting machine and use method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703923A (en) * | 1970-11-12 | 1972-11-28 | United States Steel Corp | Balancing mechanism and method for continuous casting molds |
| US4532975A (en) * | 1983-04-28 | 1985-08-06 | United States Steel Corporation | Continuous casting mold oscillator load indication system |
| AT382540B (en) * | 1985-06-27 | 1987-03-10 | Voest Alpine Ag | CONTINUOUS CASTING MACHINE WITH A CHOCOLATE STORED ON AN OSCILLATING LIFTING TABLE |
| AT383521B (en) * | 1985-12-23 | 1987-07-10 | Voest Alpine Ag | Guide arrangement for an oscillating mould of a continuous casting plant |
| AT400416B (en) * | 1993-12-20 | 1995-12-27 | Voest Alpine Ind Anlagen | CONTINUOUS PLATE CHOCOLATE |
| DE19817701C2 (en) * | 1998-04-21 | 2000-09-28 | Sms Demag Ag | Lifting table with oscillation drive for a continuous caster |
| DE19845357A1 (en) * | 1998-10-02 | 2000-04-06 | Schloemann Siemag Ag | Method and device for the continuous control of the basic setting and oscillation parameters of a continuous casting mold |
| DE19946069A1 (en) * | 1999-09-25 | 2001-03-29 | Sms Demag Ag | Management of mold lifting tables in a continuous caster |
| DE10022598A1 (en) * | 2000-05-10 | 2001-11-15 | Sms Demag Ag | Continuous metal casting mold with a profiled casting cross section is mounted in a swing frame on leaf springs with an adjustable oscillating drive for profiled continuous casting |
-
2004
- 2004-04-24 DE DE102004020130A patent/DE102004020130A1/en not_active Withdrawn
-
2005
- 2005-04-08 EP EP05730438A patent/EP1750871A1/en not_active Withdrawn
- 2005-04-08 CA CA002563230A patent/CA2563230A1/en not_active Abandoned
- 2005-04-08 KR KR1020067019310A patent/KR20070001192A/en not_active Application Discontinuation
- 2005-04-08 RU RU2006134288/02A patent/RU2006134288A/en not_active Application Discontinuation
- 2005-04-08 CN CNA2005800128983A patent/CN1946498A/en active Pending
- 2005-04-08 JP JP2007508759A patent/JP2007534497A/en not_active Withdrawn
- 2005-04-08 WO PCT/EP2005/003726 patent/WO2005105342A1/en not_active Application Discontinuation
- 2005-04-08 US US11/587,221 patent/US20070289716A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070001192A (en) | 2007-01-03 |
| DE102004020130A1 (en) | 2005-11-17 |
| JP2007534497A (en) | 2007-11-29 |
| RU2006134288A (en) | 2008-04-10 |
| WO2005105342A1 (en) | 2005-11-10 |
| US20070289716A1 (en) | 2007-12-20 |
| CN1946498A (en) | 2007-04-11 |
| EP1750871A1 (en) | 2007-02-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |