EP1477252A1 - Procédé et dispositif pour osciller un moule de coulée continue et pour guider une barre en coulant du métal liquide, en particulier d'acier liquide - Google Patents

Procédé et dispositif pour osciller un moule de coulée continue et pour guider une barre en coulant du métal liquide, en particulier d'acier liquide Download PDF

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Publication number
EP1477252A1
EP1477252A1 EP04009473A EP04009473A EP1477252A1 EP 1477252 A1 EP1477252 A1 EP 1477252A1 EP 04009473 A EP04009473 A EP 04009473A EP 04009473 A EP04009473 A EP 04009473A EP 1477252 A1 EP1477252 A1 EP 1477252A1
Authority
EP
European Patent Office
Prior art keywords
oscillation
casting
oscillation drive
strokes
drive
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.)
Ceased
Application number
EP04009473A
Other languages
German (de)
English (en)
Inventor
Axel Weyer
Adolf Zajber
Ronald Wilmes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1477252A1 publication Critical patent/EP1477252A1/fr
Ceased legal-status Critical Current

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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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • 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
    • 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
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock

Definitions

  • the invention relates to a method for oscillating a continuous casting mold and for guiding a casting strand when casting liquid metals, in particular of liquid steel materials, in which the continuous casting mold with its weight supported on a lifting table and the lifting table moved oscillating in a guide and in the guideway of which the casting strand is transported in a support roller stand becomes.
  • This process is based on mechanical or hydraulic Oscillation drives carried out, settings of the strokes, the sinusoids, their modification u. Like. Relatively within a regulating and control device simply carried out with electrical-mechanical and / or electrical means alone can be.
  • the known devices look parallel to the casting direction on the casting strand sides arranged means for guiding the lifting table and next to the casting line arranged hydraulic piston-cylinder units before as an oscillation drive.
  • the means for guiding consist, for example, of packets of leaf springs which act simultaneously work as resonance springs and the supply of drive energy in operation reduce the existing vibration system.
  • the well-known swing system successful in practice for oscillating devices for casting Billet, block, bloom, pre-profile, slab and thin slab continuous casting molds been applied.
  • the continuous casting plants differ in that for the execution of the casting process following strand guides (support roller stands) in vertical, vertical bending and arches (e.g. circular arches).
  • strand guides support roller stands
  • arches e.g. circular arches.
  • the mold oscillation must be adapted for each version of the strand guide and the strand dimensions become.
  • the invention has for its object an oscillation method and an associated To propose an institution that, through standardization of funds, technically covers a wide range of motion sequences on the different Types of continuous casting plants and on a variety of formats of the casting strand can be applied.
  • the object is achieved according to the invention in that in the casting direction independent, individually controllable and controllable, arranged one behind the other Oscillation drives in one and the same continuous casting device, if necessary adjustable or at least partially interchangeable roller segments of the support roller stand on the one hand for vertical casting both oscillation drives for the same oscillation movements with the same strokes and on the other hand for an arcuate casting for uneven oscillation movements can be controlled electrically and / or hydraulically with unequal strokes, whereby the front oscillation drive in the casting direction over shorter strokes compared to the rear oscillation drive is controlled.
  • the advantages are the variable setting the oscillation curve of an infinite radius (vertical or Vertical turning system) up to smaller radii (arch system) such as one Circular arc system within a continuous caster.
  • strand format (strand thickness) can be changed later if necessary.
  • Interchangeable continuous casting molds for different types can be placed on the lifting table Formats can be assembled, creating a standardized continuous caster arises.
  • Corresponding assemblies of the support roller stand are re-enacted or exchanged.
  • One embodiment provides that on the basis of variable, shorter strokes of the front oscillation drive, the oscillation curve and / or the format thickness when casting casting strands of different thicknesses.
  • the desired standardization also occurs, with a uniform vibration system a large number of movements and the Capture strand dimensions.
  • the device is based on a prior art for the oscillation of a continuous casting mold and to guide the casting strand when casting liquid metals, especially when casting liquid steel materials, from, with one on one Continuous casting mold with lift table and at least two independent ones hydraulic oscillation drives, which act on the lifting table, as well as with Regulation and control devices for the lifting heights and oscillation movements of the oscillation drives.
  • the object is achieved in that that in the middle, neutral plane or symmetrical to the middle Level the pouring vein in the pouring direction at least two oscillation drives in a row are arranged, with a first oscillation drive behind the lifting table and a second oscillation drive is arranged in front of the lifting table. Thereby become vertical and arcuate oscillating movements in a continuous caster as well as different arches and different thicknesses of the Cast strand allows.
  • a switch to changed casting strand dimensions can be done, for example done that the front oscillation drive depending on the arcuate Oscillation movement and / or the format thickness of the casting strand to changed Strokes are adjustable.
  • the Strokes of the rear oscillation drive and / or the front oscillation drive can be changed independently of the set oscillation frequency.
  • the predominantly hydraulic oscillating drives can be further Features are advantageously controlled in that the control and Controls a hydraulic circuit for the rear oscillation drive and essentially the same hydraulic circuit for the front Have oscillation drive.
  • control and regulating means are also organized such that the hydraulic Circuit of the regulating or control device for the rear oscillation drive and the fixed side of the support roller stand and the hydraulic circuit the regulating or control device for the front oscillation drive and the loose side of the support roller stand are provided separately.
  • the piston-cylinder units the fixed side and the loose side of the support roller frame each via an electromagnetic valve are connected to their own pressure source.
  • a hydraulic pressure accumulator each on the piston-cylinder units is connected to compensate for pressure fluctuations.
  • the circuit is also for hydraulic, electrical or electronic measuring devices such that in the area of the piston-cylinder units electronics modules located using compressed air via a connected compressed air line are cooled.
  • a continuous casting mold 1 for billet, block, bloom, slab or Thin slab formats is a casting strand 2 made of liquid metal, in particular made of liquid steel material, cast and to be removed on the format surfaces imported lubricants (casting powder) oscillates.
  • the continuous casting mold 1 is supported with its weight on a lifting table 3 and the lifting table 3 is in a guide 4 (for example made of leaf springs, rollers with support surfaces and the like) oscillating moves, the guide 4 of the mold oscillation by one on the through Cool shrinking format adjusted support roller stand 5 is continued.
  • the guide 4 in the casting direction 6 is an oscillating movement 7a, 8a (through Arrows shown) of successive, independent, individually controllable and controllable oscillation drives 7 and 8 within the continuous casting device assigned, if necessary, adjustable or at least partially has interchangeable roller segments 9 of the respective supporting roller frame 5.
  • the oscillation drives 7, 8 are basically in the casting direction 6 as a rear oscillation drive 7 and arranged as a front oscillation drive 8.
  • the arched Casting direction 6 requires that the strokes of the front oscillation drive 8 are shorter than the strokes of the rear oscillation drive 7.
  • the oscillation system of the continuous casting mold 1 is articulated Oscillation drives 7 and 8 shown.
  • the oscillation takes place around a plant center 10 instead, the continuous casting mold 1 the corresponding one Has radius 11 or 12 and this results in the format thickness 13.
  • the oscillation curve 14 is thus an arc with an average radius between the radii 11 and 12.
  • the format thickness 13 forms between the support roller pairs the continuation of the pouring core 13a.
  • Fig. 4 shows the adaptation of the radii 11 and 12 depending on the different Format thicknesses 13.
  • the middle planes 15 correspond to the radii R1, R2 and R3,
  • the oscillation drives 7, 8 are each individually in the middle radius lying middle level 15 or alternatively for very heavy lifting tables heavy continuous casting molds, in pairs symmetrical to the middle level 15 arranged.
  • the respective middle levels 15 at the beginning of the level of the radii R1, R2, R3 run vertically in the room.
  • Each of the oscillation drives 7, 8 is in the oscillation movements 7b, 8b in different parameters adjustable.
  • the front oscillation drive is 8 in Dependence of the arcuate oscillation movement and / or the format thickness 13 adjustable on the one hand to changed strokes.
  • the strokes of the rear oscillation drive 7 and / or the front oscillation drive 8 independently in the form of the oscillating movement and the set oscillation frequency variable.
  • control and regulating devices 16 are hydraulic Circuit 17 shown.
  • the embodiment is for the rear oscillation drive 7 and for the front oscillation drive 8 the same hydraulic Circuit 17 selected.
  • the rear oscillation drive 7 is the fixed side 18 and the front oscillation drive 8 the loose side 19 of the support roller stand 5 assigned.
  • the oscillation drives 7, 8 each consist of piston-cylinder units 20 same design. These piston-cylinder units 20 are on the fixed side 18 and on the loose side 19 of the support roller frame 5 each via an electromagnetic valve 21 (directional valve) connected to a pressure source 22. To the piston-cylinder units 20 are measuring sensors located there (such as position sensors, Pressure transmitter u. Like.) and electronic circuits cooled by compressed air. The Compressed air is supplied via a compressed air pipe 23, which together with the hydraulic Lines is laid, and is branched to the two circuits 17.
  • compressed air is both at the piston end 24 and at the piston rod end 25 guided where the electronic assemblies are located.
  • the hydraulic pressure fluid flows through a tank line 26 to.
  • Leakage liquid flows back into the tank via a leakage line 27.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP04009473A 2003-05-12 2004-04-22 Procédé et dispositif pour osciller un moule de coulée continue et pour guider une barre en coulant du métal liquide, en particulier d'acier liquide Ceased EP1477252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003121553 DE10321553A1 (de) 2003-05-12 2003-05-12 Verfahren und Einrichtung zum Oszillieren einer Stranggießkokille und zum Führen eines Gießstrangs beim Gießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen
DE10321553 2003-05-12

Publications (1)

Publication Number Publication Date
EP1477252A1 true EP1477252A1 (fr) 2004-11-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009473A Ceased EP1477252A1 (fr) 2003-05-12 2004-04-22 Procédé et dispositif pour osciller un moule de coulée continue et pour guider une barre en coulant du métal liquide, en particulier d'acier liquide

Country Status (2)

Country Link
EP (1) EP1477252A1 (fr)
DE (1) DE10321553A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151574A1 (fr) * 2007-06-12 2008-12-18 Hong Jiang Appareil oscillant pour moule

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638714A (en) * 1970-08-14 1972-02-01 Koppers Co Inc Method and apparatus for oscillating a continuous casting mold
DE19817701A1 (de) * 1998-04-21 1999-10-28 Schloemann Siemag Ag Hubtisch mit Oszillationsantrieb für eine Stranggießeinrichtung
JP2000079448A (ja) * 1998-09-02 2000-03-21 Nkk Corp 連続鋳造機の鋳型振動装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638714A (en) * 1970-08-14 1972-02-01 Koppers Co Inc Method and apparatus for oscillating a continuous casting mold
DE19817701A1 (de) * 1998-04-21 1999-10-28 Schloemann Siemag Ag Hubtisch mit Oszillationsantrieb für eine Stranggießeinrichtung
JP2000079448A (ja) * 1998-09-02 2000-03-21 Nkk Corp 連続鋳造機の鋳型振動装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151574A1 (fr) * 2007-06-12 2008-12-18 Hong Jiang Appareil oscillant pour moule

Also Published As

Publication number Publication date
DE10321553A1 (de) 2004-12-02

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