EP0394776B1 - Installation de coulée continue courbe pour barres d'acier à lingotière ouverte oscillante - Google Patents
Installation de coulée continue courbe pour barres d'acier à lingotière ouverte oscillante Download PDFInfo
- Publication number
- EP0394776B1 EP0394776B1 EP90107094A EP90107094A EP0394776B1 EP 0394776 B1 EP0394776 B1 EP 0394776B1 EP 90107094 A EP90107094 A EP 90107094A EP 90107094 A EP90107094 A EP 90107094A EP 0394776 B1 EP0394776 B1 EP 0394776B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arc
- continuous casting
- type continuous
- starting bar
- casting plant
- 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
- 238000009749 continuous casting Methods 0.000 title claims abstract description 26
- 238000005266 casting Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 230000003534 oscillatory effect Effects 0.000 title claims 2
- 230000010355 oscillation Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000003462 vein Anatomy 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
-
- 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
- B22D11/08—Accessories for starting the casting procedure
- B22D11/085—Means for storing or introducing the starter bars in 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
- B22D11/14—Plants for continuous casting
- B22D11/142—Plants for continuous casting for curved casting
Definitions
- the invention relates to a continuous sheet casting installation for steel strands according to the features of the preamble of claim 1.
- Continuous sheet caster systems with continuous molds are fed by vertical or slightly inclined steel feeds.
- the resulting strand is guided on an arcuate strand with an arc length of about 90 degrees and then straightened.
- the straightening unit is usually followed by a horizontal strand discharge.
- Continuous casting plants for steel billets have arc radii of 4 m and more. Arc radii of 8 - 12 m are used for blooms and slabs. Continuous casting machines are built as single or multi-strand casting plants with up to 8 strands.
- Such continuous casting plants are provided with two or more accessible stages or intermediate floors for machine operation and maintenance and are built up together with a steel structure in the steelworks.
- the steel structure is an integral part of the continuous casting machine, which is required, for example, for suspending the mold, supporting the strand guide, the drive leveling unit and the cold strand storage device.
- a continuous steel casting installation with a rigid, arc-shaped starting strand is known.
- This system consists of a continuous mold, a secondary cooling device, a drive unit and a cold strand guiding and moving device.
- the cold strand guide device can also be used as a parking device for the cold strand.
- the mold is supported on the steel structure for the casting platform, the drive leveling unit is placed on a foundation and the guiding, storage and movement device of the starting line is attached to further pillars of the casting platform structure.
- the curved strand guide between the mold and driver is movably arranged on the foundation on a horizontally movable carriage. Due to their bulkiness, such systems cannot be transported in assembled condition.
- the invention has for its object to provide a continuous casting machine for billet and blank strands, which can be easily transported in the workshop-mounted state and placed in the casting position on a foundation.
- This continuous casting machine should also be able to be assembled by stringing together single-strand units to form multiple-strand systems with any number of strands.
- the alignment work at the casting site between the mold, strand guide, drive leveling unit and cold strand guide as well as the parking facility is to be reduced or completely eliminated.
- each individual machine unit should ensure high availability through simplified revision options.
- the continuous sheet caster according to the invention which is suitable for billet and blank strands, can be transported in a workshop-mounted state due to the new construction concept.
- the rigid start-up line with its guiding and moving device can be inserted between the mold and driving rollers and therefore does not require any additional space during transport.
- a corresponding number of modules can be placed next to each other on a prepared foundation and screwed tight. Alignment work between the mold, strand guide, straightening machine and cold strand guide device is no longer necessary during assembly.
- the module structure can be carried out with great economy, and revision and spare part costs are also reduced.
- the module can consist of a support which can be fastened to the foundation, to which the continuous mold with its oscillation guide, the drive leveling unit and the rigid starting line are articulated or fastened with its guide and movement device.
- the support itself can be constructed according to a variety of design principles. A particularly advantageous construction is characterized in that the support is designed as a trestle with two legs on each side, which are connected to a foundation frame.
- the guide for the mold oscillation and the guide device for the rigid starting line can be pivotable about a common axis.
- the arc mold can be arranged at various points along an arc, the pouring part the mold cavity of the mold can be substantially vertical or oblique.
- the pouring conditions are particularly advantageous with a vertical pouring part. This means that the rigid, curved starting line has an arc length of 110 - 130 degrees.
- the rigid start-up line can be guided and parked along a roller cage and moved with a pair of driving rollers.
- the swivel lever for the start-up line can be designed as an angle lever with an angle between 90 degrees and 150 degrees and a leg ratio of about 1: 2, the short lever part being articulated on the swivel axis and the long lever part being articulated on the start-up line.
- the casting radius in the mold is chosen to be 3.5 m or less, the bending stress on the strand crust during the straightening becomes correspondingly large, which can lead to cracks, particularly on the edges.
- the driving judge is proposed to design the driving judge as a multi-point judging unit.
- An additional improvement and simplification of the system can be achieved if the driver judge has a straightening section for a continuous bend between the arc radius of the mold and a straight line. With such a straightening machine, strands with radii of curvature between 1.5 and 3.5 m, preferably 2.5 m, can be straightened with good strand quality.
- the assembly time for the individual machine modules can be shortened further, especially if repairs are not to be carried out in the casting position, if the trestle is provided with coupling pieces for media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc., which can be brought together with coupling pieces of the media supply lines when the machine is placed in the casting position.
- media such as mold cooling water, secondary cooling water, mold lubrication, protective gas etc.
- the figure shows a side view, partly in section, of a continuous caster.
- Liquid steel flows from an intermediate vessel 1 into an oscillatable continuous mold 2.
- An eccentric 3 is shown schematically as an oscillation drive.
- a secondary cooling device 4 a drive direction unit 5, a rigid starting line 6 and a starting line guide and movement device 7, 7 'are arranged.
- the continuous caster is constructed as a self-supporting module for a continuous vein.
- a support 9 which is connected to the foundation 8 via a base plate or a foundation frame 10, the mold 2 with its oscillation guide 11, the driving directional unit 5 and the rigid starting line 6 with its guide and movement device 7, 7 'are connected or articulated .
- the secondary cooling device consisting only of coolant supply lines and spray nozzles 4 and an additional cold strand guide 14 are arranged on the foundation frame 10.
- This unit referred to as a module, can be placed on or removed from a prepared foundation in the fully assembled state at the casting location, for example by means of a crane.
- the support 9 can be further developed by a second, same support lying in front of the cut and by further support legs 12 and crossbeams 13 to a four-legged support bracket which is fastened to the foundation frame 10.
- the oscillation guide 11 in the form of a bolt is also the guide for the guide device 7 of the starting line 6.
- a piston-cylinder unit 7 ' is provided for the movement of the starting line 6.
- the pivot lever 7 is designed as an angle lever with a leg ratio of approximately 1: 2, the short lever part being articulated on the pivot axis 11 and the long lever part being articulated on the starting line 6.
- the casting platform 15 is provided for operating personnel. It is easy to see how the size of the casting platform 15 can be influenced by the design of the angle lever.
- the transition curve 20 can by intermediate rollers, not shown, between the rollers 16 and 17 as a multi-point direction curve or, as shown, without Intermediate rolls can be designed as a continuous straightening section.
- the value of the elongation change in percent elongation per unit length of the straightening section should not exceed a certain value.
- the columns 9 etc. of the trestle can be provided with coupling pieces 22, 22 'for media, such as mold water, secondary cooling water, mold lubrication, protective gas, etc., which can be brought together with coupling pieces 23 of the media supply lines when the machine is placed in the casting position.
- media such as mold water, secondary cooling water, mold lubrication, protective gas, etc.
- the directional driver is shown in dot-dash lines in the position for decoupling the starting strand 6 from the starting head of the cast strand before the cold strand has reached the parking position, as shown in the figure.
- the straightening roller 24 is in the position shown in the solid state.
- the rigid starting strand 6 can be inserted into the mold and clamped, which significantly reduces the transport volume.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Articles (AREA)
- Lining And Supports For Tunnels (AREA)
- Ropes Or Cables (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Crushing And Grinding (AREA)
Claims (12)
- Installation de coulée continue construite en arc, pour barres d'acier, comprenant une lingotière (2) à bouts ouverts et pouvant être animée de mouvements d'oscillation, un système de refroidissement secondaire (4), une machine à extraire et à dresser (5), une fausse barre rigide (6) et un système de guidage et de transport (7, 7′) pour la fausse barre, caractérisée en ce que la lingotière (2) avec son guide-support d'oscillation (11), la machine à extraire et à dresser (5) et la fausse barre rigide (6) avec son système de guidage et de transport (7, 7′) sont réalisées, pour chaque ligne de coulée, comme un module autoportant qui peut être disposé au point de coulée comme une unité modulaire assemblée et ajustée.
- Installation selon la revendication 1, caractérisée en ce que le module comprend un appui (9) pouvant être fixé sur une fondation (8) et auquel sont articulées ou fixées la lingotière (2) avec son guide-support d'oscillation (11), la machine à extraire et à dresser (5) et la fausse barre rigide (6) avec son système de guidage et de transport (7, 7′).
- Installation selon la revendication 1 ou 2, caractérisée en ce que l'appui (9) est réalisé comme un chevalet (9, 12, 13) présentant, sur chacun de deux côtés, deux pieds (9, 12) reliés à un châssis de fondation (10).
- Installation selon une des revendications 1-3, caractérisée en ce que le guide-support (11) pour l'oscillation de la lingotière et le dispositif de guidage (7) pour la fausse barre rigide sont pivotants autour d'un axe (11) commun.
- Installation selon une des revendications 1-4, caractérisée en ce que la fausse barre rigide (6) possède une longueur d'arc de 110-130 degrés.
- Installation selon la revendication 4 ou 5, caractérisée en ce que le système de guidage et de transport (7, 7′) pour la fausse barre rigide (6) comprend un levier pivotant (7) qui est commandé et est articulé à la fausse barre (6) à la position de coulée et à la position de parcage.
- Installation selon une des revendications 1-6, caractérisée en ce que le levier pivotant (7) pour la fausse barre (6) est un levier coudé présentant un rapport d'environ 1:2 pour les branches, la courte branche du levier étant articulée sur l'axe de pivotement (11) et la longue branche du levier étant articulée à la fausse barre (6).
- Installation selon une des revendications 1-7, caractérisée en ce que la machine à extraire et à dresser (5) est du type à redressement multipoint.
- Installation selon une des revendications 1-7, caractérisée en ce que la machine à extraire et à dresser (5) présente une zone de redressement pour un dépliage ou redressement continu entre le rayon d'arc (18) de la lingotière et une partie droite (19) du guide-barre.
- Installation selon une des revendications 1-9, caractérisée en ce que le rayon d'arc (18) est compris entre 1,5 et 3,5 m et est de préférence de 2,5 m.
- Installation selon une des revendications 1-10, cactérisée en ce que le chevalet (9, 12, 13) est équipé de raccords d'accouplement (22) pour des fluides, qui peuvent être reliés à des raccords d'accouplement (23) des conduites d'arrivée des fluides lors de la mise en place de la machine en position de coulée.
- Installation selon une des revendications 1-11, caractérisée en ce que la juxtaposition d'unités modulaires permet de composer des machines de coulée continue de 2 à 8 lignes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90107094T ATE83411T1 (de) | 1989-04-24 | 1990-04-12 | Bogenstranggiessanlage fuer stahlstraenge mit einer oszillierbaren durchlaufkokille. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1574/89A CH679650A5 (fr) | 1989-04-24 | 1989-04-24 | |
CH1574/89 | 1989-04-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0394776A2 EP0394776A2 (fr) | 1990-10-31 |
EP0394776A3 EP0394776A3 (fr) | 1991-03-20 |
EP0394776B1 true EP0394776B1 (fr) | 1992-12-16 |
Family
ID=4213604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90107094A Expired - Lifetime EP0394776B1 (fr) | 1989-04-24 | 1990-04-12 | Installation de coulée continue courbe pour barres d'acier à lingotière ouverte oscillante |
Country Status (12)
Country | Link |
---|---|
US (1) | US5131453A (fr) |
EP (1) | EP0394776B1 (fr) |
JP (1) | JPH02299755A (fr) |
KR (1) | KR900015835A (fr) |
CN (1) | CN1022548C (fr) |
AT (1) | ATE83411T1 (fr) |
BR (1) | BR9001873A (fr) |
CA (1) | CA2015120A1 (fr) |
CH (1) | CH679650A5 (fr) |
DE (1) | DE59000594D1 (fr) |
ES (1) | ES2038463T3 (fr) |
TR (1) | TR24347A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10049445A1 (de) * | 2000-10-06 | 2002-04-18 | Sms Demag Ag | Vorrichtung zum Stranggießen von Metallen, insbesondere von Stahl für das Solidified-Bending-Verfahren |
EP2335847B1 (fr) * | 2009-12-18 | 2013-04-17 | SMS Concast AG | Dispositif de démarrage de coulée d'une installation de coulée continue |
CN102896286B (zh) * | 2011-08-29 | 2015-04-01 | 河南省澳斯迪环保机械有限责任公司 | 引锭杆加工中心 |
CN105307797B (zh) | 2013-06-20 | 2017-09-08 | 钢铁普蓝特克股份有限公司 | 连续铸造机及其使用方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3344844A (en) * | 1964-08-10 | 1967-10-03 | Koppers Co Inc | Apparatus for handling a curved continuous casting starting bar |
US3358743A (en) * | 1964-10-08 | 1967-12-19 | Bunker Ramo | Continuous casting system |
US3433287A (en) * | 1965-01-11 | 1969-03-18 | United Eng Foundry Co | Dummy bar device for continuous casting machine |
US3628595A (en) * | 1969-10-22 | 1971-12-21 | Koppers Co Inc | Pivotally mounted starter bar in a continuous casting machine |
SU334758A1 (ru) * | 1970-01-15 | 1979-11-15 | Molochnikov Nv | Установка не прерывной разливки металлов |
AT338984B (de) * | 1975-11-12 | 1977-09-26 | Voest Ag | Stutz- und fuhrungsgerust, insbesondere stutz- und fuhrungsbogen fur brammengussstrange |
SU904878A1 (ru) * | 1980-02-11 | 1982-02-15 | Предприятие П/Я А-7697 | Радиальна машина непрерывного лить металла |
IT1141781B (it) * | 1980-03-04 | 1986-10-08 | Simac Spa | Dispositivo di traino della billetta negli impianti a colata continua |
IT1145911B (it) * | 1981-01-30 | 1986-11-12 | Continua Int | Macchina per la colata continua di metalli in particolare d acciaio |
US4412579A (en) * | 1982-05-07 | 1983-11-01 | Koppers Company, Inc. | Apparatus for handling a continuous casting machine starter bar |
CH658210A5 (de) * | 1982-07-16 | 1986-10-31 | Concast Service Union Ag | Bogenstranggiessanlage mit bogenfoermigem, starrem anfahrstrang und verfahren zum betrieb einer solchen anlage. |
-
1989
- 1989-04-24 CH CH1574/89A patent/CH679650A5/de not_active IP Right Cessation
-
1990
- 1990-04-09 TR TR90/0439A patent/TR24347A/xx unknown
- 1990-04-12 EP EP90107094A patent/EP0394776B1/fr not_active Expired - Lifetime
- 1990-04-12 AT AT90107094T patent/ATE83411T1/de not_active IP Right Cessation
- 1990-04-12 DE DE9090107094T patent/DE59000594D1/de not_active Expired - Fee Related
- 1990-04-12 ES ES199090107094T patent/ES2038463T3/es not_active Expired - Lifetime
- 1990-04-13 JP JP2096624A patent/JPH02299755A/ja active Pending
- 1990-04-23 CA CA002015120A patent/CA2015120A1/fr not_active Abandoned
- 1990-04-23 BR BR909001873A patent/BR9001873A/pt not_active IP Right Cessation
- 1990-04-24 KR KR1019900005749A patent/KR900015835A/ko not_active Application Discontinuation
- 1990-04-24 CN CN90102322A patent/CN1022548C/zh not_active Expired - Fee Related
-
1991
- 1991-05-13 US US07/702,148 patent/US5131453A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
TR24347A (tr) | 1991-09-01 |
ES2038463T3 (es) | 1993-07-16 |
DE59000594D1 (de) | 1993-01-28 |
CN1022548C (zh) | 1993-10-27 |
US5131453A (en) | 1992-07-21 |
ATE83411T1 (de) | 1993-01-15 |
JPH02299755A (ja) | 1990-12-12 |
CN1047234A (zh) | 1990-11-28 |
CA2015120A1 (fr) | 1990-10-24 |
EP0394776A3 (fr) | 1991-03-20 |
KR900015835A (ko) | 1990-11-10 |
EP0394776A2 (fr) | 1990-10-31 |
CH679650A5 (fr) | 1992-03-31 |
BR9001873A (pt) | 1991-06-18 |
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