EP1767289B1 - Device for guiding cast billets - Google Patents

Device for guiding cast billets Download PDF

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Publication number
EP1767289B1
EP1767289B1 EP06018638A EP06018638A EP1767289B1 EP 1767289 B1 EP1767289 B1 EP 1767289B1 EP 06018638 A EP06018638 A EP 06018638A EP 06018638 A EP06018638 A EP 06018638A EP 1767289 B1 EP1767289 B1 EP 1767289B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
thread
outer sub
continuously 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.)
Not-in-force
Application number
EP06018638A
Other languages
German (de)
English (en)
Other versions
EP1767289A2 (fr
EP1767289A3 (fr
EP1767289B2 (fr
Inventor
Wolfgang Schmitz
Uwe Plociennik
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 Group GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37667625&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1767289(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP1767289A2 publication Critical patent/EP1767289A2/fr
Publication of EP1767289A3 publication Critical patent/EP1767289A3/fr
Publication of EP1767289B1 publication Critical patent/EP1767289B1/fr
Application granted granted Critical
Publication of EP1767289B2 publication Critical patent/EP1767289B2/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
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling

Definitions

  • the invention relates to a device for guiding continuous casting profiles or slabs.
  • Such devices for guiding continuous casting profiles or slabs are basically known in the prior art. They typically include cooling water means for providing cooling water for cooling the continuous casting profiles or slabs and at least one strand guiding roll for guiding the slabs or continuous casting profiles through the apparatus. From the Japanese patent application JP 61033746 A It is known that such strand guide rollers may have formed a coiled groove on its surface. Furthermore, it is from the Japanese patent application JP 8047757 It is known that such strand guide rollers may have a plurality of adjacent sub-rollers, wherein the surfaces of the sub-rollers may in each case in turn be provided with a groove.
  • a strand-guiding roller has a plurality of sub-rollers, there is inevitably a left outer sub-roller, which is assigned to the left-hand edge region of the extruded profile or of the slabs, and a right-outer sub-roller assigned to the right-hand edge region of the slabs.
  • the present invention seeks to develop strand guide rollers of a device for guiding continuous casting profiles or slabs in that on the slab surface existing cooling or splash water either either remains as long as possible on the slab surface or removed as quickly as possible from the slab surface becomes.
  • a known apparatus for guiding continuous casting profiles or slabs as described in the introduction, is further developed in that a cooling water means is provided for providing cooling water for cooling the slabs, the groove on the left outer sub-roll and the groove on the right outer sub-roll is formed in the form of a thread and the sign of the pitch of the thread-shaped groove on the left outer part of the role opposite to the sign of the pitch of the thread-shaped groove on the right outer part of the roller is selected.
  • the provision of the grooves in the surfaces of the sub-rollers has the advantage that the cooling water can flow out not only in the region of a central bearing between the two outer sub-rollers, but in addition also through the grooves, in particular with a vertical guidance of the slabs.
  • This has the advantage that the water drainage channel formed by the distance of the bearing to the surface of the slabs relieves and less cooling water flows through it.
  • the thread-shaped design of the groove advantageously causes no water drainage channels to form on the slab surface, because the contact area between the groove and the slab surface transverses with a rotation of the partial rolls transversely to the direction of slab travel.
  • this contact area transverse to the slab running direction also has the consequence that the water not only removed via the grooves, but is also transported by these at least partially in the respective direction of movement of the contact area between the groove and slab surface.
  • the parts of the cooling water which do not flow through the grooves or in the area of the camp, but remain as splash water on the slab surface, either to the slab center or transported to the slab edges.
  • the claimed opposite signs of the pitches of the thread-shaped grooves on the outer part rollers advantageously allow the splash water from either outer rollers either selectively to the center of the slab out, that is held on the slab surface to continue to cool them or very quickly from the Slab surface is removed, as it may be useful, for example, at the output of the device for guiding continuous casting profiles.
  • the strand-guiding roller of the device additionally comprises, in addition to the two outer sub-rollers, an intermediate roller mounted between them.
  • an intermediate roller mounted between them.
  • On the surface of this intermediate roller is preferably also a groove, in the form of a thread, that is a coiled groove provided to avoid streaking on the slab surface, as in a Nutverlauf with a slope of zero due to the then resulting locally fixed water drainage channel the slab surface would result.
  • the signs of the pitches of the thread-shaped grooves on the two outer part rollers are selected such that the contact areas the grooves with the slab surface at the two outer part rolls mitwandem in the case of rotation of the sub-rollers in the direction of the slab center. Then, the non-flowing parts of the cooling water are fed to the slab center; that is, the majority of the cooling water is held on the slab surface and is available there for cooling purposes.
  • the cooling water be removed from the slab surface as quickly as possible.
  • This is inventively achieved in that the opposite signs of the pitches of the thread-shaped grooves on the two outer part rollers are chosen so that the contact areas of the grooves with the slabs in a rotation of the outer part rollers each outwardly in the left direction and right edge of the slab hike. More specifically, then causes the left part of the reel, a discharge of the cooling water over the left edge of the slab and the right part of the role, a discharge of the cooling water over the right edge of the slab.
  • the strand guide roll has at least one intermediate roll in the exit area of the continuous casting guide, it is advantageous to have the sign of the pitch of the thread groove on the intermediate roll in an area to the left of the slab center corresponding to the sign of the slope of the groove on the left outer part roll. and in an area to the right of the slab center according to the sign of the slope of the groove on the right outer sub-roll.
  • the sign of the pitches of the thread-shaped grooves is selected on these multiple intermediate roles depending on whether the respective intermediate rollers are located to the left or right of the slab center. It is important in this case only that the cooling water is removed as quickly as possible.
  • the one intermediate role in the region of the slab center identifies two separate thread-like grooves with different signs of their slopes on their surface.
  • strand guide rollers in the exit region of the device to form the outer part rolls and preferably also the intermediate rolls as uniformly as possible with respect to the sign of the pitches of the grooves on their surfaces in order to achieve a fast cooling water drainage to effect.
  • FIG. 1 shows a device (100) according to the invention, for guiding continuous casting profiles, in particular for slabs 200.
  • the slabs or continuous casting profiles run through the device by way of example in the direction of arrow B L.
  • the apparatus for guiding continuous casting profiles comprises a cooling water device 110, for example in the form of water nozzles 112, which are arranged between strand guide rollers 130. These nozzles 112 provide cooling water for cooling the slabs.
  • the strand guide rollers 130 serve to guide the slabs 200 through the apparatus (100) for guiding continuous casting profiles.
  • the slabs are seen in the running direction B L , an input region I, a middle region II and an output region III are distinguished.
  • FIG. 2 shows the typical structure for a strand guide roller 130 according to the invention, as used for example in the apparatus (100) for guiding continuous casting profiles.
  • strand guide roller 130 includes at least one left outer sub-roll 130-L spatially associated with the left edge of slab 200 and a right sub-roll 130-R associated with the right edge of slab 200.
  • the strand guide rollers 130 also include one or more intermediate rollers 130-M.
  • the groove 132-M is also formed thread-shaped to the formation of a fixed water drainage channel, as he would arise in a circumferential groove without pitch and to avoid a resulting banding on the slab surface.
  • the signs of the slopes of the grooves are opposed, but the outer part rollers 130-L, 130-R so assigned that they keep the remaining cooling water, ie the splash water on the slab surface or merge there.
  • the pitches of the thread-like grooves on these intermediate roles are alternating signs.
  • FIG. 3 shows a segment of a total of 4 parallel strand guide rollers 130, which are each formed from only two sub-rollers, that is, two outer sub-rollers 130-L, 130-R.
  • a movement of the slabs 200 in the slab running direction B L results due to the contact of the sub-rollers with the slab surface, a predefined direction of rotation of the sub-rollers.
  • the splash water as indicated by the horizontal arrows, out in the direction of slab center.
  • the reason for this is that the contact areas K between the groove and the slab surface also move in the direction of the slab center, that is to say in the direction of the arrow.
  • FIG. 4 shows the continuation of in FIG. 3 already indicated segment-like interconnection of strand guide rollers in the middle region II and in the end III.
  • the strand guide rollers 130 in the middle region II are similarly profiled as in the above-mentioned reason FIG. 3 shown strand guide rollers or their sub-rollers.
  • the outer sub-rollers are opposite in shape with respect to the signs of the slopes of their grooves on their surface; moreover, however, the sign of the left outer part roller 130 'is also formed opposite to the sign of the slope grooves on the left outer part roller in the middle area II.
  • the right outer part rollers in the outer area III and in the central area II is achieved.
  • FIG. 5 shows a first embodiment for the formation of a thread-shaped groove 132 on the surface of a strand guide roller 130, that is, in particular on one of the two outer part rollers or an intermediate roller.
  • FIG. 5 shows concretely the formation of a catchy groove, wherein FIG. 5a a cross-sectional view and FIG. 5b an elevation view shows.
  • FIG. 5b the contact areas K between the groove and the surface of the slabs 200 are illustrated. As mentioned, this contact area moves depending on the direction of rotation of the roller to the left or right edge of the slab.
  • FIGS. 6 and 7 show a second and third embodiment for the arrangement of grooves on the roll surface, wherein FIG. 6 a double-course groove course and FIG. 7 describe a three-course groove course. Also in these two figures, the figures a each indicate a cross-section and the figures b each show an elevational view of the multi-start grooves.
  • the number of grooves on the outer sub-rollers 130-L, 130-R or on the intermediate rollers and the size of the respective cross-sections of the grooves with respect to the amount of the discharged cooling water 120 and its uniform distribution on the slab surface is selected.
  • the number of parallel thread-like grooves per roll that is, the number of flights of the grooves, the widths of the grooves and their pitches on one of the outer part rolls or an intermediate roll 130-M relative to the roll diameter and the roll pitch are made to have a small overlap the contact areas K of two adjacent thread-like grooves on a roll with the slab surface takes place.

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

Claims (13)

  1. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion ou des brames (200), comprenant :
    au moins un rouleau de guidage (130) pour guider les brames à travers le dispositif (100), ledit rouleau de guidage (130) comprenant, de manière répartie sur la largeur des brames (200), au moins un rouleau partiel (130-L) extérieur gauche, associé à la région de bordure gauche de la brame, et un rouleau partiel extérieur droit (130-R) associé à la région de bordure droite de la brame, et dans lequel au moins une rainure respective (132) est ménagée sur les surfaces des deux rouleaux partiels extérieurs (130-L, 130-R),
    caractérisé en ce que
    il est prévu un système d'eau de refroidissement (110) pour mettre à disposition de l'eau de refroidissement (120) pour refroidir les brames (200) ;
    la rainure (132-L) sur le rouleau partiel extérieur gauche (130-L) et la rainure (132-R) sur le rouleau partiel extérieur droit (130-R) sont réalisées respectivement sous la forme de pas de vis ; et
    le signe de la pente de la rainure en forme de pas de vis (132-L) sur le rouleau partiel extérieur gauche est choisi opposé au signe de la pente de la rainure en forme de pas de vis (132-R) sur le rouleau partiel extérieur droit.
  2. Dispositif (10) pour guider des profilés réalisés par coulée-extrusion selon la revendication 1,
    caractérisé en ce que, entre le rouleau partiel extérieur gauche (130-L) et le rouleau partiel extérieur droit (130-R) est agencé au moins un rouleau intermédiaire (130-M) avec de préférence au moins une rainure (132-M) sous forme de pas de vis à sa surface.
  3. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que, quand le rouleau de guidage est agencé dans une région d'entrée (I) ou dans une région médiane (II) du dispositif (100) pour guider des profilés réalisés par coulée-extrusion, les signes opposés des pentes des rainures en forme de pas de vis (132-L, 132-R) sur le rouleau partiel extérieur gauche et le rouleau partiel extérieur droit sont ainsi choisies que les zones de contact (K) des rainures (132) avec les brames (200) se déplacent lors d'une rotation des rouleaux partiels en direction du milieu de la brame, aussi bien pour le rouleau partiel extérieur gauche que pour le rouleau partiel extérieur droit (130-L, 130-R).
  4. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon la revendication 3,
    caractérisé en ce que les pentes des rainures en forme de pas de vis de plusieurs rouleaux intermédiaires existants (130-M) sont réalisées avec des signes alternants sur un seul et même rouleau de guidage.
  5. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon la revendication 4,
    caractérisé en ce que, pour deux rouleaux de guidage voisins (130) dans la région d'entrée (I) ou dans la région médiane (II) du dispositif (100) et pour le même nombre de rouleaux intermédiaires (130-M), les signes des pentes des rainures en forme de pas de vis (132-M) de deux rouleaux intermédiaires agencés l'un derrière l'autre dans la direction de déplacement des brames (BL) sont choisis opposés.
  6. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que, quand le rouleau de guidage (130) est agencé dans une région de sortie (III) du dispositif (100), les signes opposés des pentes des rainures en forme de pas de vis sur le rouleau partiel extérieur gauche et sur le rouleau partiel extérieur droit (130-L, 130-R) sont ainsi choisies que les zones de contact (K) des rainures (132-L, 132-R) avec les brames (200) se déplacent lors d'une rotation des rouleaux partiels, vers l'extérieur en direction des bordures de la brame, aussi bien pour le rouleau partiel extérieur gauche que pour le rouleau partiel extérieur droit.
  7. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon la revendication 6,
    caractérisé en ce que le signe de la pente de la rainure en forme de pas de vis dudit au moins un rouleau intermédiaire (130-M) est choisi dans une zone à gauche du milieu de la brame en correspondance du signe de la pente de la rainure (132-L) sur le rouleau partiel extérieur gauche (130-L), et dans une zone à droite du milieu de la brame en correspondance du signe de la pente de la rainure (132-R) sur le rouleau partiel extérieur droit (130-R).
  8. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon la revendication 7,
    caractérisé en ce que, en présence d'un nombre impair de rouleaux intermédiaires, le rouleau intermédiaire (130-M) dans la zone du milieu de la brame présente deux rainures en forme de pas de vis avec des pentes de signes différents sur sa surface.
  9. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon la revendication 6, 7 ou 8,
    caractérisé en ce que deux rouleaux de guidage voisins (130', 130") dans la région de sortie (III) du dispositif (100) pour guider des profilés réalisés par coulée-extrusion, sont réalisés le plus possible du même type en particulier pour ce qui concerne le choix des signes des pentes des rainures sur leurs rouleaux partiels extérieurs ou leurs rouleaux intermédiaires agencés les uns derrière les autres en direction de circulation des brames (BL).
  10. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que les rouleaux partiels (130-L, 130-R) et/ou les rouleaux intermédiaires (130-M) sont soutenus respectivement par des paliers dans leurs zones de liaison (V).
  11. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que pour deux rouleaux de guidage voisins (130) ou deux rouleaux de guidage agencés l'un derrière l'autre en direction de circulation des brames (BL), les rouleaux partiels extérieurs agencés respectivement les uns derrière les autres et/ou les rouleaux intermédiaires sont réalisés chacun de largeur différente.
  12. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que le nombre des rainures sur les rouleaux partiels extérieurs (130-L, 130-R) ou sur les rouleaux intermédiaires, ainsi que la taille des sections respectives des rainures, sont choisis en tenant compte de la quantité d'eau de refroidissement (120) à évacuer et de sa répartition régulière sur la surface des brames.
  13. Dispositif (100) pour guider des profilés réalisés par coulée-extrusion selon l'une des revendications précédentes,
    caractérisé en ce que le nombre des rainures parallèles en forme de pas de vis pour chaque rouleau, les largeurs de leurs rainures respectives, ainsi que les pentes sur un rouleau partiel (130-L, 130-R) ou sur un rouleau intermédiaire (130-M) sont choisis, en relation au diamètre des rouleaux et à la subdivision des rouleaux, de telle manière qu'il se produit un faible chevauchement des zones de contact (K) de deux rainures en forme de pas de vis voisines avec la surface respective des brames.
EP06018638.4A 2005-09-24 2006-09-06 Device for guiding cast billets Not-in-force EP1767289B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005045838A DE102005045838A1 (de) 2005-09-24 2005-09-24 Kühlvorrichtung

Publications (4)

Publication Number Publication Date
EP1767289A2 EP1767289A2 (fr) 2007-03-28
EP1767289A3 EP1767289A3 (fr) 2007-12-26
EP1767289B1 true EP1767289B1 (fr) 2009-12-16
EP1767289B2 EP1767289B2 (fr) 2016-12-14

Family

ID=37667625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06018638.4A Not-in-force EP1767289B2 (fr) 2005-09-24 2006-09-06 Device for guiding cast billets

Country Status (3)

Country Link
EP (1) EP1767289B2 (fr)
AT (1) ATE451986T1 (fr)
DE (2) DE102005045838A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2481512A1 (fr) 2011-01-26 2012-08-01 Voestalpine Stahl GmbH Procédé de fabrication d'un rouleau ayant une couche réalisée par soudage par rechargement ; Rouleau de guidage et/ou d'appui d'un tronçon d'une installation de coulée continue avec une telle couche
JP2013094828A (ja) * 2011-11-02 2013-05-20 Jfe Steel Corp 連続鋳造における二次冷却方法
AT512425A1 (de) * 2012-01-24 2013-08-15 Siemens Vai Metals Tech Gmbh Strangführungsrolle und strangführung für eine stranggiessmaschine
JP6135616B2 (ja) * 2014-07-31 2017-05-31 Ｊｆｅスチール株式会社 連続鋳造鋳片の幅方向均一冷却鋳造方法及び連続鋳造設備
AT517252B1 (de) * 2015-05-27 2019-03-15 Primetals Technologies Austria GmbH Vermeidung von Wassergassen bei einer Strangführung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550676A (en) † 1968-02-23 1970-12-29 United States Steel Corp Pinch roll assembly for a continuous-casting machine
JPS6133746A (ja) * 1984-07-27 1986-02-17 Kawasaki Steel Corp 連鋳機用ロ−ル
JPH0847757A (ja) * 1994-08-03 1996-02-20 Nippon Steel Corp 溝付き分割ロール並びに鋳片案内設備及び鋳片案内方法

Also Published As

Publication number Publication date
ATE451986T1 (de) 2010-01-15
DE102005045838A1 (de) 2007-03-29
EP1767289A2 (fr) 2007-03-28
EP1767289A3 (fr) 2007-12-26
EP1767289B2 (fr) 2016-12-14
DE502006005648D1 (fr) 2010-01-28

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