EP2089172B1 - Procédé pour l´utilisation d´un dispositif de guidage de barre - Google Patents

Procédé pour l´utilisation d´un dispositif de guidage de barre Download PDF

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Publication number
EP2089172B1
EP2089172B1 EP07818622A EP07818622A EP2089172B1 EP 2089172 B1 EP2089172 B1 EP 2089172B1 EP 07818622 A EP07818622 A EP 07818622A EP 07818622 A EP07818622 A EP 07818622A EP 2089172 B1 EP2089172 B1 EP 2089172B1
Authority
EP
European Patent Office
Prior art keywords
roller
cast strip
bridges
strand
bridge
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.)
Not-in-force
Application number
EP07818622A
Other languages
German (de)
English (en)
Other versions
EP2089172A1 (fr
Inventor
Axel Weyer
Axel Stavenow
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 Siemag 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 Siemag AG filed Critical SMS Siemag AG
Publication of EP2089172A1 publication Critical patent/EP2089172A1/fr
Application granted granted Critical
Publication of EP2089172B1 publication Critical patent/EP2089172B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1281—Vertical 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

Definitions

  • the invention relates to a method dum enterprises a strand guiding device for supporting and guiding casting strands within a continuous casting plant, in particular for slabs and thin slabs.
  • the invention applies in principle to all types of strand guiding devices, in particular to vertical, horizontal, or sheet systems. More specifically, the invention relates to the positioning of roller bridges within a strand guiding device.
  • Strand guiding devices with roller bridges for supporting and guiding casting strands are basically known in the prior art.
  • the DE 1 583 620 A1 discloses a device for treating cast strands by rolling, in which strand guide elements provided with roller bridges are, which are held articulated on one end side and are radially displaceable on the other end side, so that the roller bridges are v-shaped relative to the neutral phase or to the central axis of the cast strand.
  • the EP 0 834 364 B1 discloses an apparatus for continuous casting with a strand thickness reduction, in which opposite rollers are provided, wherein the rollers of one side are rigidly arranged and the rollers of the other opposite side are acted upon with respect to the rigid rollers.
  • the roller bridge closest to the mold is hinged at its end closest to the mold, the other end of the roller bridge being displaceable.
  • the roller bridges following this first roller bridge are connected to one another in a coupled manner and limitedly displaceable in consideration of the coupling, wherein one end of a roller bridge can always be displaced together with another end of an adjacent roller bridge.
  • EP 0 545 104 B1 discloses an apparatus for continuous casting, wherein the device has a fixed roller set and a relative to this first set of rollers can be braced another second roller set.
  • the object of the invention is therefore to provide an apparatus and a method which allow to make the strand guide and the strand more flexible.
  • the strand guide device operated according to the invention comprises in particular at least one first adjusting element for connecting the first roller bridge to a first mainland and for individually positioning the first roller bridge with respect to the neutral phase of the casting strand and at least one second adjusting element for connecting the second roller bridge to a second mainland and for individually positioning the second roller bridge with respect to the neutral phase of the casting strand.
  • the neutral phase in the interior of a cast strand that has not yet solidified describes that fictitious line which connects the hottest points in the longitudinal direction of the strand, each viewed in a cross section of the strand. It can, but does not have to coincide with the geometric mean line of the strand, especially in the case of asymmetrical cooling.
  • the claimed method of the invention advantageously enables the two roller bridges of a segment to be set on either side of the cast strand independently of each other with respect to the neutral phase of the cast strand.
  • the reference point for the adjustment and alignment of the strand guide or the roller bridges according to the invention is no longer, as in the prior art, the roller conveyor of the fixed side, but the neutral phase of the strand.
  • individual, ie independent positioning or employment of the roller bridges on both (broad) sides of the casting strand with respect to the neutral phase of the strand or alternatively to their respective venue forms the basis for a significant quality improvement in continuous casting, especially in the production of slabs.
  • the continuous casting is improved with the invention procedurally insofar as it allows individual support of the strand shell on the individually engageable roller conveyors, the support independent and flexible in terms of optimum solidification process, but also in terms of a desired Softreduction and / or with regard to liquid core reduction to be carried out.
  • the adjusting elements are mechanically formed and allow a static adjustment of the individual position of the roller bridges with respect to the neutral phase of the cast strand with the aid of spacers, so-called spacers.
  • the adjustment elements are designed as hydraulic elements. This has the advantage that then a setting or a change in the employment of the roller bridges z. B. can also be done from a remote control room during operation of the strand guiding device.
  • a particularly stable positioning or adjustment of the roller bridges to the cast strand is achieved because the roller bridges are positioned with four provided in their respective corner areas adjustment. In particular, such a positioning is made possible at a certain angle ⁇ > 0 to the neutral phase of the casting strand.
  • the respective opposite roller bridges are attached to each different mainland.
  • the mainland is the segmental frame of the segment.
  • the mainland may also be any stationary structural element the continuous casting or in the vicinity of the continuous casting, for example, a wall act.
  • the strand guiding device operated according to the invention enable an asymmetrical adjustment of the roller bridges with respect to the neutral phase of the cast strand.
  • the roller bridges become symmetrical, i. each set at the same distance to the neutral phase of the hot strand.
  • the symmetrical adjustment or employment also includes a symmetrical employment of the roller bridges on both sides of the cast strand at an angle ⁇ > 0 against the neutral phase of the cast strand explicitly with a.
  • roller bridges with respect to the neutral phase of the cast strand can be useful, in particular, during a casting operation with regard to optimum segment conicity / taper, with regard to a liquid core reduction to be performed or with regard to soft reduction.
  • FIG. 1 shows a continuous casting plant with a continuous casting mold 210 and a strand guiding device 100.
  • the strand guiding device 100 comprises two segments. 110, which are arranged downstream in the continuous casting direction (arrow direction) of the mold 210 sequentially.
  • Each of the two segments 110 comprises a first roller bridge 114-1 on one broad side of the cast strand and a second roller bridge 114-2 on the opposite broad side of the cast strand.
  • the cast strand is in the Figures 1 - 3 represented by the vertical dotted line.
  • Each of the two roller bridges 114-1, 114-2 each includes a plurality rollers 116-1, 116-2 for supporting and guiding the cast strand.
  • the first roller bridge 114-1 is preferably variably positionable with four adjustment elements 118 on a first mainland 112-1, that is to say fixed at a variable distance. Of the four first setting elements, only two are in FIG. 1 shown and designated by reference numerals 118-3 and 118-4. Analogously, the second roller bridge 114-2 is fastened variably positionable by means of preferably four adjustment elements on a second mainland 112-2; also of these adjustment elements are only two in FIG. 1 shown and designated by reference numerals 118-1 and 118-2. All adjustment elements are used for individually positioning or adjusting their respective associated roller bridges with respect to the neutral phase N of the casting strand.
  • the locking elements are mechanically formed. That is, the individual adjustment of the roller bridges with respect to the neutral phase of the casting strand by means of spacers 119 which are placed in the region of the adjusting elements between the roller bridges and the respective mainland.
  • the employment defined by the spacers settings or the roller bridges to the cast strand are not changeable due to the high temperatures during the casting operation in the vicinity of the strand guiding device during the ongoing casting operation and thus static.
  • roller bridges 114 with respect to the neutral phase N of the casting strand is symmetrical here, because the distances of each pairwise opposite roller bridges or individual roles are equal to the neutral phase everywhere the same size.
  • FIG. 2 differs on the one hand from FIG. 1 in that the adjusting elements are here according to the invention in the form of hydraulic cylinders 118'-1, ..., 118'-4, are formed.
  • this design of the adjusting elements also allows a change in the employment of Roller bridges during the ongoing casting operation. This is particularly advantageous for a preferably continuous adjustment of the employment of the bridges to a possibly caused by the cooling process Materialdickenschund the cast strand or other casting parameters such as steel quality and casting speed during the current casting operation.
  • FIG. 2 in contrast to FIG. 1 shown an asymmetrical employment of the roller bridges to the casting strand; this is coming in FIG. 2 characterized in that the left roller bridge 114-1 with their associated roles a smaller distance from the neutral phases of the cast strand than the opposite roller bridge 114-2 with their associated roles.
  • FIG. 3 the strand guiding device and in particular the adjusting elements are analogous to FIG. 2 hydraulically formed.
  • FIG. 3 a non-inventive symmetrical employment of the roller bridges to the neutral phase of the casting strand shown.
  • FIG. 1 are in FIG. 3
  • the roller bridges 114-1 and 114-2 not parallel to the neutral phase, but with a two-sided angle ⁇ > 0 made to the neutral phase. This is true in FIG. 3 for the immediate downstream of the mold segment; however, in the second segment downstream in the casting direction, the roller bridges 114-1, 114-2 are again arranged parallel to the neutral phase.

Claims (1)

  1. Procédé pour le fonctionnement d'un dispositif de guidage de barre (100) destiné au soutien et au guidage d'une barre de coulée continue après avoir quitté une lingotière de coulée continue (210) dans une installation de coulée continue, avec au moins un segment, dans lequel le segment comprend :
    un premier pontet à rouleaux (114-1) associé à l'un des grands côtés de la barre ;
    un second pontet à rouleaux (114-2) associé au grand côté opposé de la barre, dans lequel au moins un rouleau est monté rotatif sur le premier et sur le second pontet à rouleaux (114) pour soutenir et pour guider la barre ;
    au moins un premier élément de réglage (118-3, 118-4) pour relier le premier pontet à rouleaux (114-1) avec un premier lieu stationnaire (112-1) et pour positionner individuellement le premier pontet à rouleaux (114-1) par référence à la phase neutre (N) de la barre de coulée ; et
    au moins un second élément de réglage (118-1, 118-2) pour relier le second pontet à rouleaux (114-2) avec un second lieu stationnaire (112-2) et pour positionner individuellement le second pontet à rouleaux (114-2) par référence à la phase neutre (N) de la barre de coulée,
    les pontets à rouleaux (114-1, 114-2) étant agencés de façon réglable respectivement asymétriquement par rapport à la phase neutre (N) de la barre de coulée,
    des éléments hydrauliques à titre d'élément de réglage (118), au moyen desquels les pontets à rouleaux (114-1, 114-2) peuvent être positionnés individuellement pendant le processus de coulée en cours, et les pontets à rouleaux (114-1, 114-2) comprennent respectivement quatre éléments de réglage (118) hydrauliques agencés dans leurs zones de coins respectives, au moyen desquels les pontets à rouleaux (114-1, 114-2) sont réglables individuellement sous un angle déterminé α > 0 par rapport à la phase neutre (N) de la barre de coulée ;
    dans lequel le procédé comprend les étapes suivantes :
    soutenir et guider de la barre de coulée par positionnement individuel du premier pontet à rouleaux (114-1) à l'aide du premier élément de réglage (118-3, 118-4) par rapport à la phase neutre (N) de la barre de coulée ; et
    positionner individuellement du second pontet à rouleaux (114-2) à l'aide du second élément de réglage (118-1, 118-2) par rapport à la phase neutre (N) de la barre de coulée, de sorte que les pontets à rouleaux sont réglés pendant le fonctionnement de coulée de manière asymétrique par rapport à la phase neutre de la barre de coulée en fonction de paramètres de réglage dépendant de la qualité de l'acier et dépendant de la vitesse de coulée.
EP07818622A 2006-10-13 2007-10-02 Procédé pour l´utilisation d´un dispositif de guidage de barre Not-in-force EP2089172B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006048511A DE102006048511A1 (de) 2006-10-13 2006-10-13 Strangführungsvorrichtung und Verfahren für deren Betrieb
PCT/EP2007/008542 WO2008046507A1 (fr) 2006-10-13 2007-10-02 dispositif de guidage de barre et procédé pour son utilisation

Publications (2)

Publication Number Publication Date
EP2089172A1 EP2089172A1 (fr) 2009-08-19
EP2089172B1 true EP2089172B1 (fr) 2011-09-28

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ID=38812142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07818622A Not-in-force EP2089172B1 (fr) 2006-10-13 2007-10-02 Procédé pour l´utilisation d´un dispositif de guidage de barre

Country Status (11)

Country Link
US (1) US8162033B2 (fr)
EP (1) EP2089172B1 (fr)
JP (1) JP2010505632A (fr)
KR (1) KR20090051764A (fr)
CN (1) CN101522340B (fr)
AT (1) ATE526099T1 (fr)
CA (1) CA2665072C (fr)
DE (1) DE102006048511A1 (fr)
RU (1) RU2412781C2 (fr)
UA (1) UA96461C2 (fr)
WO (1) WO2008046507A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115502352B (zh) * 2022-11-17 2023-02-03 德阳宏广智能装备有限责任公司 铸坯输送装置及连铸连轧生产线

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DE1583620A1 (de) 1967-12-15 1970-08-27 Demag Ag Verfahren und Vorrichtung zum Behandeln von Giessstraengen durch Walzen
US4255345A (en) 1980-02-19 1981-03-10 Henkel Corporation Steroid production
JPS56111555A (en) 1980-02-05 1981-09-03 Nippon Steel Corp Method for setting roll gap in continuous casting
DE3169810D1 (en) 1980-07-28 1985-05-15 Bbc Brown Boveri & Cie Homeotropic nematic display with an internal reflector
JPS62127147A (ja) 1985-11-27 1987-06-09 Hitachi Zosen Corp 連続鋳造設備におけるロ−ルセグメント
DE4138740A1 (de) * 1991-11-26 1993-05-27 Schloemann Siemag Ag Verfahren und vorrichtung zum stranggiessen von brammen oder bloecken
JPH06292959A (ja) * 1993-04-12 1994-10-21 Sumitomo Metal Ind Ltd 鋳片支持装置
DE4338805C2 (de) * 1993-11-12 1995-10-26 Schloemann Siemag Ag Verfahren und Vorrichtung zum Betreiben einer Stranggießanlage
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Also Published As

Publication number Publication date
CA2665072A1 (fr) 2008-04-24
RU2009117862A (ru) 2010-11-20
CA2665072C (fr) 2011-12-13
WO2008046507A1 (fr) 2008-04-24
US20100032125A1 (en) 2010-02-11
KR20090051764A (ko) 2009-05-22
RU2412781C2 (ru) 2011-02-27
CN101522340A (zh) 2009-09-02
US8162033B2 (en) 2012-04-24
UA96461C2 (ru) 2011-11-10
DE102006048511A1 (de) 2008-04-17
ATE526099T1 (de) 2011-10-15
JP2010505632A (ja) 2010-02-25
CN101522340B (zh) 2012-07-18
EP2089172A1 (fr) 2009-08-19

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