EP2056981A1 - Dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore non durci à c ur - Google Patents

Dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore non durci à c ur

Info

Publication number
EP2056981A1
EP2056981A1 EP07801657A EP07801657A EP2056981A1 EP 2056981 A1 EP2056981 A1 EP 2056981A1 EP 07801657 A EP07801657 A EP 07801657A EP 07801657 A EP07801657 A EP 07801657A EP 2056981 A1 EP2056981 A1 EP 2056981A1
Authority
EP
European Patent Office
Prior art keywords
metal strip
rollers
strand
guiding
segment frame
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.)
Withdrawn
Application number
EP07801657A
Other languages
German (de)
English (en)
Inventor
Markus Reifferscheid
Jürgen Seidel
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 EP2056981A1 publication Critical patent/EP2056981A1/fr
Withdrawn legal-status Critical Current

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
    • B22D11/12—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
    • 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
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
    • 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

Definitions

  • the invention relates to a strand guide device and a method for guiding a not yet solidified metal strip, in particular a thin slab in a continuous casting.
  • the reason for the profile increase in the metal bands is the so-called ferrostatic pressure, which is in the interior of not yet solidified metal bands and presses from the inside against the strand shell, thus causing a curvature of the strand shell to the outside.
  • ferrostatic pressure is substantially constant inside the liquid part of the strand; but it is the greater, the longer the liquid part of the metal strip is.
  • the bulging of the strand shell caused by the ferro-static pressure leads to a stress on the guide rollers guiding the metal strip in the strand guiding device and these pass on the load via their bearings to a segment frame on which the guide rollers are supported by means of the bearings.
  • the transmitted load typically leads to a deflection or Auffed- tion of the segment frame, in particular in the range of intermediate storage for split guide rollers.
  • This unwanted springing of the segment frame Typically leads to an undesirable change in the roller gap geometry and thus in particular to an undesirably large profile increase in the guided in the strand guide metal strip. Due to the undesirable profile cant, the metal strip then often no longer meets the requirements of the downstream rolling mill.
  • the invention has the object to provide for a known strand guide device and for a known method for guiding a particular not yet solidified metal strip alternative means for performing an at least partial compensation of a Segmentauffed mecanic.
  • the invention takes the described springing of the segment frame in the field of intermediate storage under load as given out; it is not attempted to change the extent of springing by a different design, in particular a stiffening of the segment frame.
  • Load-free state of the strand guiding device means that no metal strip is passed through the roller gap.
  • load condition refers to the case where a metal strip, in particular a metal strip which has not yet solidified, is passed through the roll nip, as already described, an internal ferrostatic pressure, which pushes the strand shell of the metal strip outwards
  • the ferrostatic pressure also acts indirectly on the guide rollers of the strand guide device and on the guide rollers turn on the segment frame.
  • the pressure on the segment frame ultimately causes a springing of the segment frame, especially in the area of the intermediate storage.
  • the claimed means for (partial) compensation of the Segmentauffed mecanic advantageously allow a restriction or adjustment of the caused by the ferrostatic pressure undesirable large profile elevation of the metal strip to an allowable threshold.
  • This feature aims at a solution of the following problem:
  • the position of the sump tip and thus the length of not yet solidified area at a metal strip within a strand guide device depends largely on the casting parameters casting speed, superheating and strength of the secondary cooling.
  • the longer the casting speed and the lower the cooling the longer the still liquid part of the metal strip.
  • the longer the still liquid part of the strand the greater the ferrostatic pressure inside the metal strip.
  • the claimed increased mende stronger training of means for compensating the springing advantageously causes a necessary greater back pressure on metal bands with particularly long not solidified areas.
  • the then prevailing greater ferrostatic pressure is then counteracted by the claimed embodiment of the means, in particular in the field of Enderstarrung of the metal strip, to a sufficiently large extent.
  • the claimed in the transport direction of the metal strip tends to increase or increase compensation of Segmentauffed réelle allows the formation of a desired at least approximately constant profile over the entire length of the metal strip and indeed advantageous- regardless of the size of the currently driven casting parameters such as casting speed, superheating or strength of secondary cooling.
  • the invention is a total of four figures attached, wherein
  • Figure 1 shows a first embodiment of the inventive means for compensating for a springing of the segment frame
  • Figure 2 shows a second embodiment of the inventive agent
  • Figure 3 shows a third embodiment of the inventive agent
  • FIG. 4 shows the relationship between the position of the sump tip, dependent suspension of the segment frame and the partial compensation of the segment suspension according to the invention
  • FIGS. 1-3 shows a cross-section through a strand guiding device 100 of a continuous casting plant for guiding a metal strip, in particular not yet solidified, such as e.g. a thin slab (not shown in the figures).
  • the strand guiding device 100 comprises a segment frame 110, which is represented in FIGS. By the segment crossbars 110 illustrated.
  • At least one pair of opposing guide rollers 120 is rotatably mounted on the segment frame.
  • the two opposing guide rollers 120 span a variable roller gap S, in which the metal strip (not shown) is guided.
  • the guide rollers 120 are at least simply divided in the present invention;
  • each guide roller 120 by way of example consists of two sub-rollers 122, 124 arranged next to one another.
  • the sub-rollers are each rotatably mounted on the segment frame or on the segment traverse 110 via an outer bearing 132, 134 and at least one common intermediate bearing 133.
  • a crowning of the intermediate guide rollers is proposed according to the invention, as shown in FIG.
  • the partial rollers formed in this way are each mounted with their thicker ends on the common intermediate bearing 133. Under load (not shown in FIG. 1), the intermediate bearings 133 move more away from the middle of the roller gap S than the outer bearings due to said springing of the segment frame; the negative crowning of the roller gap shown in FIG.
  • the crowning of the partial rollers or of the guide rollers is parabolic or designed in accordance with a polynomial function.
  • FIG. 2 illustrates a second means for at least partially compensating for a springing of the segment frame.
  • This second means consists in that the outer bearings 132, 134 are made more resilient or softer sprung than the at least one intermediate bearing 133 in the region of the maximum segment sprung.
  • the intermediate bearings are advantageously sprung increasingly harder towards the middle of the metal strip, because the size of the springing of the segment frame mechanically increases towards the middle of the segment frame or the segment cross member, while it drops towards the edges.
  • the intermediate storage in the region of the center of the metal strip may also be rigid, ie not sprung formed; this variant is shown in FIG. Under load (not shown in FIG.
  • Figure 3 shows a third embodiment of the inventive means for partially compensating the Segmentauffed réelle.
  • the particularly pronounced segment suspension in the region of the intermediate bearing 133 is at least partially compensated thereby that the distance A1 between the segment frame 110 and the center axis M of the partial rollers 122, 124 is greater at the intermediate bearings 133 than at the External bearings 132, 134.
  • the negative curvature of the roller gap shown in Figure 3 for the load-free state is leveled or even overcompensated in the load, so that then a roller gap or a profile of the metal strip with straight limited parallel broadsides or a Metal strip results in a desired very low profile cant.
  • Figure 4 shows the path of a metal strip 200 after casting in a Kokil- Ie by a downstream vertically arranged strand guide device 100.
  • the diagram in Figure 4 reads as follows: In a certain position of the sump tip, ie at a certain distance of the sump tip of the casting mirror, designated by way of example SS1 in Figure 4, the size of the associated springing of the guide rollers results in the second segment Strand guiding device by the dotted line, starting from the point SS1, horizontally, ie in the X direction is followed to the right outside. The size of the respective springing results then as distance A of the line far right outside of the Y-axis. It can be seen that the springing tends to increase with increasing distance from the casting mirror, ie in the Y direction.
  • the bold lines show the degree of springing when using the inventive means for partial compensation of the Auffed-. It can be seen that the springing of the segmental frame resulting from the use of the device according to the invention is considerably less than the springing of the segmental frame represented by the lines on the right-hand side without the means according to the invention; compare distance B to distance A. Finally, it can also be seen from FIG. 4 that the distance C between the lines printed in bold and the lines on the left outside increases as the number of segments increases, ie as the distance from the pouring mirror increases. This increasing distance C symbolizes a in the transport direction of the metal strip 200 advantageously growing compensation power by respectively correspondingly more trained means.
  • This stronger training of the means for example in the form of a stronger crowning of the sub-rollers to the middle of the roller gap or in the form of an increase in the distance between the segment frame and the central axis of the partial role in the intermediate storage or by an increasingly harder suspension of the intermediate storage compared to The edge bearings with increasing distance from the casting mirror, advantageously allows an at least approximately constant keeping the desired profile increase in the metal strip in the Be
  • the said approximately constant holding of the profile cantilever can be seen in FIG.
  • the distance B between the Y axis and the bold lines remains constant at least approximately over the entire length of the strand guiding device; at least this distance B or the corresponding profile cant does not change by far to the extent that would be the case without the use of the means according to the invention, which is represented by the distance A between the line sections on the far left and the Y axis ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

L'invention concerne un dispositif de guidage de barre et un procédé de guidage d'un feuillard métallique, en particulier d'un feuillard métallique qui n'a pas encore durci à coer, dans une installation de coulée continue. Les dispositifs connus de guidage de barre comprennent un cadre segmenté et au moins deux galets de guidage mutuellement opposés entre lesquels le feuillard métallique est guidé. Au moins un des galets de guidage est configuré en forme d'au moins deux galets partiels (122, 124) disposés l'un à côté de l'autre. Les galets partiels sont montés sur le cadre segmenté (110) par deux paliers extérieurs (132, 134) et au moins un palier intermédiaire commun (133). Pour compenser au moins en partie la déformation élastique ou la flexion du cadre segmenté (110) provoquée indirectement par la pression ferrostatique qui règne à l'intérieur du feuillard métallique qui n'a pas encore durci à coer, en particulier dans la zone du palier intermédiaire (133) lors du transport du feuillard métallique entre deux galets de guidage (120), l'invention propose trois moyens différents qui peuvent également être utilisés en combinaison les uns avec les autres. Ces moyens sont un bombage du galet de guidage intermédiaire et/ou une configuration des paliers extérieurs (132, 134) plus déformable que celle du palier intermédiaire (133) et/ou une distance A1 entre le cadre segmenté (110) et l'axe central M des galets partiels (122, 124) plus grande dans le palier intermédiaire (133) que dans les paliers extérieurs (132, 134).
EP07801657A 2006-08-25 2007-08-15 Dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore non durci à c ur Withdrawn EP2056981A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006040012A DE102006040012A1 (de) 2006-08-25 2006-08-25 Strangführungseinrichtung und Verfahren zum Führen eines noch nicht durcherstarrten Metallbandes
PCT/EP2007/007193 WO2008022731A1 (fr) 2006-08-25 2007-08-15 dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore NON durci à cœur

Publications (1)

Publication Number Publication Date
EP2056981A1 true EP2056981A1 (fr) 2009-05-13

Family

ID=38754797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801657A Withdrawn EP2056981A1 (fr) 2006-08-25 2007-08-15 Dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore non durci à c ur

Country Status (8)

Country Link
US (2) US20090314455A1 (fr)
EP (1) EP2056981A1 (fr)
JP (1) JP2010501352A (fr)
KR (1) KR20090021219A (fr)
CN (1) CN101505890B (fr)
CA (2) CA2659989C (fr)
DE (1) DE102006040012A1 (fr)
WO (1) WO2008022731A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107153355A (zh) * 2017-05-31 2017-09-12 西安交通大学 一种薄板坯连铸连轧辊缝值动态自适应控制方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20052328A1 (it) * 2005-12-06 2007-06-07 Danieli Off Mecc Impianto per la produzione di nastro metallico
DE102007035283A1 (de) * 2007-07-27 2009-01-29 Siemens Ag Verfahren zur Einstellung eines Zustands eines Walzguts, insbesondere eines Vorbands
AT506549B1 (de) * 2008-03-28 2011-06-15 Siemens Vai Metals Tech Gmbh Strangführungssegment
US9021706B2 (en) * 2010-02-01 2015-05-05 The Timken Company Unified rolling and bending process for roller bearing cages
DE102011003194A1 (de) * 2010-05-19 2011-11-24 Sms Siemag Ag Rolleneinrichtung
CN102039388A (zh) * 2011-01-20 2011-05-04 中冶赛迪工程技术股份有限公司 铸流导向装置
US10226801B2 (en) 2012-01-12 2019-03-12 Nippon Steel & Sumitomo Metal Corporation Casting product reduction apparatus
AT512425A1 (de) * 2012-01-24 2013-08-15 Siemens Vai Metals Tech Gmbh Strangführungsrolle und strangführung für eine stranggiessmaschine
CN106392031B (zh) * 2015-07-31 2018-04-06 新日铁住金工程技术株式会社 铸坯压下装置
KR102441318B1 (ko) 2020-12-17 2022-09-08 주식회사 포스코 주조 설비 및 주조 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774671A (en) * 1971-10-07 1973-11-27 I Rossi Continuous casting apparatus with strand support means
AT343832B (de) * 1975-12-17 1978-06-26 Voest Ag Strangfuhrung fur stranggiessanlagen
JPS63273504A (ja) 1987-05-01 1988-11-10 Sumitomo Metal Ind Ltd クラウン調整ロ−ル
JPH0550200A (ja) 1991-08-26 1993-03-02 Sumitomo Metal Ind Ltd 連続鋳造装置
JPH0615424A (ja) * 1992-07-03 1994-01-25 Sumitomo Metal Ind Ltd 連続鋳造方法
JPH06154979A (ja) * 1992-11-20 1994-06-03 Sumitomo Metal Ind Ltd 連続鋳造装置
JPH08108208A (ja) 1994-10-05 1996-04-30 Nippon Steel Corp 薄板製造・処理ラインのピンチロール設備とその制御装置
DE19511113A1 (de) * 1995-03-25 1996-09-26 Schloemann Siemag Ag Strangführung einer Stranggießanlage für Dünnbrammen
DE19916173A1 (de) 1999-04-10 2000-10-12 Sms Demag Ag Verfahren und Vorrichtung zum Einstellen des Brammenprofils einer stranggegossenen Bramme, insbesondere einer Dünnbramme
DE10040271A1 (de) 2000-08-17 2002-02-28 Sms Demag Ag Vorrichtung zum Stranggießen von Metallen, insbesondere von Stahl
SE529184C2 (sv) * 2005-10-07 2007-05-22 Skf Ab Tryckkompenserande anordning för en rulle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008022731A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107153355A (zh) * 2017-05-31 2017-09-12 西安交通大学 一种薄板坯连铸连轧辊缝值动态自适应控制方法

Also Published As

Publication number Publication date
CA2659989A1 (fr) 2008-02-28
WO2008022731A1 (fr) 2008-02-28
CN101505890A (zh) 2009-08-12
CA2717857A1 (fr) 2008-02-28
DE102006040012A1 (de) 2008-02-28
CN101505890B (zh) 2012-06-06
US20090314455A1 (en) 2009-12-24
US20120043048A1 (en) 2012-02-23
KR20090021219A (ko) 2009-02-27
CA2659989C (fr) 2011-11-15
JP2010501352A (ja) 2010-01-21
US8256494B2 (en) 2012-09-04

Similar Documents

Publication Publication Date Title
EP2056981A1 (fr) Dispositif de guidage de barre et procédé de guidage d'un feuillard métallique encore non durci à c ur
EP2257397B1 (fr) Segment de guidage de barre coulée
DE3624241C2 (de) Verfahren zum Betrieb eines Walzwerkes zur Herstellung eines Walzbandes
DE60124064T2 (de) Walzwerk und Walzverfahren unter Verwendung derselben
EP0112969A2 (fr) Procédé pour laminer des rubans métalliques
EP2509723B1 (fr) Cage de laminoir pour fabriquer du ruban de laminage
EP3419778B1 (fr) Ensemble de rangées de buses et champ de buses destinés à être montés dans des fentes situées entre deux rouleaux de corset de guidage
DE102004031354A1 (de) Verfahren zum Walzen von Bändern in einem Walzgerüst
WO2002013994A1 (fr) Dispositif de coulee continue de metaux, notamment d'acier
EP2271444B1 (fr) Cage de laminoir
DE102004020131A1 (de) Kombinierte Fahrweisen und Gerüsttypen in Kalttandemstraßen
EP4077957B1 (fr) Agencement de rouleaux
DE1294317B (de) Walzgeruest fuer Baender, Straenge od. dgl. mit engen Dickentoleranzen
DE102008035738B4 (de) Walzvorrichtung
DE60120439T2 (de) Verfahren zur regelung der zwischen den walzwerkswalzen erzeugten axialkräfte
DE10027865C1 (de) Vielwalzen-Walzwerk für Bandmaterial
DE2825896A1 (de) Walzwerk mit gestuetztem walzenaggregat
EP3235579B2 (fr) Dispositif de guidage de barre et procédé destiné à supporter une barre de coulée
DE4106056C2 (de) Walzbiegeeinrichtung für ein Walzgerüst
DE102005043256A1 (de) Konvexwalze zur Beeinflussung von Profil und Planheit eines Walzbandes
DE1950904A1 (de) Automatische Dickenregelung von Band mit einem Walzgeruest mit Stuetzwalzenbiegung
AT390574B (de) Walzwerk, insbesondere kaltwalzwerk
DE2907247A1 (de) Gruppenkaltwalzwerk
DE102022202362A1 (de) Bogensegment einer Strangführungseinrichtung
DE3737454A1 (de) Walzwerk, insbesondere kaltwalzwerk

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090325

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SMS SIEMAG AG

17Q First examination report despatched

Effective date: 20100415

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20130417