EP3027330A1 - Installation de laminage de coulée continue de bandes métalliques - Google Patents

Installation de laminage de coulée continue de bandes métalliques

Info

Publication number
EP3027330A1
EP3027330A1 EP14744846.8A EP14744846A EP3027330A1 EP 3027330 A1 EP3027330 A1 EP 3027330A1 EP 14744846 A EP14744846 A EP 14744846A EP 3027330 A1 EP3027330 A1 EP 3027330A1
Authority
EP
European Patent Office
Prior art keywords
casting
strand
cast
mold
rolling mill
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.)
Granted
Application number
EP14744846.8A
Other languages
German (de)
English (en)
Other versions
EP3027330B1 (fr
Inventor
Jörg BAUSCH
Olaf Norman Jepsen
Guido Kleinschmidt
Markus Reifferscheid
Dieter Rosenthal
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 Group GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51257496&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3027330(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3027330A1 publication Critical patent/EP3027330A1/fr
Application granted granted Critical
Publication of EP3027330B1 publication Critical patent/EP3027330B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • 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
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • 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
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • 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
    • B22D11/141—Plants for continuous casting for vertical casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill

Definitions

  • the invention relates to a cast roll plant for producing metal strips according to the preamble of patent claim 1. Specifically, the invention relates to small caster rolling mills, so-called micro-mill plants for the production of flat steel with an annual production between 350,000 and 700,000 t of carbon steel.
  • the plant concept according to the invention is characterized by low investment and production costs, a fast project realization with good and short-term profitability of the invested capital and a compact plant layout.
  • the plant according to the invention is particularly suitable for steel producers in regions where so far no flat steel production took place and where a specialization to regional requirements should take place.
  • Cast roll mills are generally known in the art.
  • German laid-open specification DE 41 35 214 A1 discloses a cast rolling mill with a mold with a vertical outlet for producing a cast strand and with a strand guide for deflecting the cast strand from the vertical into the horizontal.
  • the strand guide comprises a vertical part following the mold in the casting direction and a deflecting part adjoining the vertical part.
  • the vertical part in turn comprises a first parallel section following the mold, a reduction section following the parallel section in the casting direction, and a second parallel section following the reduction section in the casting direction, in which the through solidification of the cast strand takes place.
  • Subordinate to the strand guide is a dicing device for dividing the casting strand into metal strips of predetermined length, a tunnel kiln, a Steckel mill for further reducing the thickness of the metal strips, a cooling section and a reel device for winding the rolled metal strip into a bundle.
  • the strand guide consists of a A plurality of individual pairs of rollers connected in series, wherein these pairs of rollers or the individual roles of the pairs of rollers are each made individually.
  • the invention has the object of developing a known cast roll mill for the production of metal bands to the effect that they can be made more compact in particular in their height and that they also produce cheaper and easier to use. This object is solved by the subject matter of patent claim 1.
  • the cast roll mill according to the invention is characterized in that the supported length of the casting mill, which extends from the mold level in the mold to the last roll of the vertical part of the strand guide, 2 to 5 m and that the vertical part of the strand guide of a maximum of two, preferably only a single segment is formed with a fixed side and a lot side.
  • the supported length is measured in the casting direction from the casting mirror in the mold to the end of the second parallel part, but not to the end of the vertical part, that is, not to the bending driver.
  • the cast rolling mill also builds in height only briefly compared with other known in the art casting rolling plants.
  • the formation of the vertical part of the strand guide in segmental design with preferably only a single segment with a continuous one-piece fixed side and a multi-part lot side has the advantage that the number of actuators, ie the number of necessary for the roles Anstell is smaller than in a design of the strand guide with a variety of individually controllable roles.
  • the multi-part designed Losseite is therefore required to the first parallel section, the subsequent Reduction section and the second parallel section with their respective roles to hire individually.
  • the first parallel section has a supported length less than 500 mm and comprises one to three pairs of rollers, which are arranged one behind the other in the casting direction or it is designed in the form of a grid for initially bending-free guidance of the cast strand.
  • the reduction section advantageously comprises three to eight roller pairs, which are arranged one after the other in the casting direction over a length of less than 1.5 m and form a liquid core reduction LCR reduction section.
  • the second parallel section preferably has a length of less than 1.5 m.
  • the two last-mentioned features that is, the number of pairs of rollers in the reduction section and the length of the second parallel section advantageously serve to limit the height of the casting mill.
  • the diameter of preferably all strand guide rollers, but in particular the strand guide rollers in the reduction section, is less than 180 mm, preferably less than 140 mm. This roller size is sufficient, in particular if it is reduced within the reduction section not only with one, but with a plurality of roller pairs.
  • the cast last in the last pair of rollers of the second parallel part of the strand guide is advantageously adjustable to a size of the roll gap of 20 to 40 mm.
  • the narrow sides of the mold lead to a casting thickness ex Kokilles from 40 to 60 mm.
  • the overall height H2 of the casting rolling mill is less than 7.5 m.
  • Figure 1 the casting and rolling system according to the invention
  • Figure 2 is a detailed view of the strand guide of the invention
  • FIG. 1 shows the casting-rolling plant according to the invention in an overall view.
  • the casting roll mill 100 as seen in the casting direction R comprises the following components: a casting platform 105, a mold 1 10, a strand guide 120, a dicing device 130, a tunnel kiln 140, a Steckel mill 160, a cooling section 170 and a coiler 180.
  • an inductive heating 150 may be arranged between the tunnel kiln and the Steckel rolling mill.
  • the individual components are described in more detail below.
  • Casting platform 105 includes a turret or pan for handling pans.
  • a distributor is used for sequence casting, wherein the cast rolling mill and in particular the strand guide are designed for single-strand operation.
  • the casting operation enables concealed casting with ceramic components between pan and distributor (shadow tube) or between distributor and mold (dip tube).
  • the distributor is typically covered with cover powder while the mold is covered with casting powder.
  • the mold 1 10 is typically a compact strip production CSP mold. It can consist of four individual side walls, typically two broad sides and two narrow sides, or be formed as a frame mold. In training with narrow sides a narrow-side adjustment is advantageously provided for adjusting the G manformates before and during the casting operation; Preferably, the setting is done online.
  • the mold is equipped with an integrated level measurement, which works, for example, radiometrically or based on an eddy current measurement.
  • the mold can be designed as a funnel mold with a crown of 20 to 60 mm on the upper Kokillenkopf.
  • the output can be formed in parallel or also have a Restbomb réelle of less than 10 mm.
  • the mold plate, d. H. the side walls of the mold are made of copper or a copper alloy with or without full or partial wear-reducing coating.
  • the mold is preferably equipped with an oscillation drive for up to 660 oscillation strokes per minute and for amplitudes of up to +/- 5 mm.
  • the mold is typically water cooled with water levels of 1, 000 to 4,000 liters per minute per meter of casting width.
  • the length or height of the funnel cane is 0.9 to 1.3 m.
  • the outlet thickness is 40 to 60 mm.
  • the casting speed is between 2.5 and 7.5 m / min.
  • the strand guide 120 following the mold 1 10 in the casting direction comprises a vertical part 125 and a deflection part 128 adjoining it in the casting direction R. Both parts will be described in more detail below with reference to FIG.
  • the vertical part 125 comprises a first parallel section 125-1 following the mold, a reduction section 125-2 following the parallel section in the casting direction, and a reduction section 125-2 following in the casting direction Gellonchtung subsequent second parallel section 125-3, in which the solidification of the cast strand.
  • the first parallel part 125-1 comprises a maximum of three roller pairs, which are arranged below the mold and with respect to the casting direction in alignment with the exit of the mold. Alternatively, it may be formed as a guide grid. Regardless of its training, its length in the casting direction is a maximum of 500 mm.
  • the reduction section 125-2 comprises three to eight roller pairs and extends over a length of less than 1.5 m, preferably less than 1 m. Within the reduction section, the cast strand is reduced in thickness between 33% and 66% according to the Liquid Core Reduction LCR method. By way of example, there is a reduction in thickness starting from 40 to 60 mm to 20 to 40 mm. Accordingly, a short strand guide, in particular a short reduction part, is at the same time typical for the plant concept according to the invention, with at the same time great reduction or thickness reduction in the conically set one
  • Reduction section 125-2; Reduction rates> 13- are adjustable.
  • the reduction section 125-2 is followed in the casting direction by the said second parallel section 125-3 with a length of less than 1.5 m, preferably less than 1.0 m.
  • the second parallel section comprises four to ten pairs of rollers.
  • the second parallel section may also be slightly tapered to accommodate the thermal taper, i. H. shrinkage of the material due to cooling.
  • the vertical strand guide region 125 is preferably formed of only one segment with a fixed side and a loose side.
  • the fixed side, to the left of the cast strand 210 in FIG. 2, of the segment is formed integrally, while the loose side, to the right of the cast strand 210 in FIG. 2, is divided into three by way of example.
  • the employment of the pairs of rollers or the frame of the segments is carried out, as usual, via position-controlled hydraulic cylinder with force monitoring. Within the segment area can be dispensed with a roller drive.
  • the strand guide rollers are at least simply divided rollers with diameters of less than 180 mm, preferably in axle roller design with internal cooling.
  • the secondary cooling in the region of the vertical part via single-fluid or two-fluid nozzles with specific Wasserbeetzschlagungsêtn of 0.5 to 4 l / kg of cooling medium, z. B. liters of water per kilogram of steel. Secondary cooling is controlled via spray plans or preferably via a process model.
  • the strand drive at the end of the vertical part 125 comprises a bending driver 190, which is designed in the form of one or at most two roller pairs, in which both rollers are driven.
  • the distance between the end of the second parallel part 125-3, seen in the casting direction, and the bending driver 190, in particular the axes of rotation of the pair of rollers, is less than 1 m.
  • the strand drive comprises a straightening driver 195 with up to 4 driven rollers in the straightening range, i. H. at the end of the deflection area 128.
  • the bending and straightening drivers are individually controllable pairs of rollers, preferably with position and force monitoring. Bending and guide rollers in the deflecting 128 provide sufficient guidance of the metal strip between the bending driver 190 and the straightening driver 195 at the end of the deflection.
  • the total height H2 of the plant which is measured from the casting level to the strand after its deflection into the horizontal, is between 5 and 7.5 m.
  • said inductive heating 150 is arranged to heat the slab or the metal strip and / or to equalize the temperature of the metal strip over its length.
  • the metal strip is rolled in, for example, three, five or seven passes to a predetermined final thickness. Behind the Steckel mill follow the said cooling section 170 and the reel 180th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention concerne une installation de laminage de coulée continue servant à fabriquer des bandes métalliques. Ladite installation comprend une coquille (110), au moins un système de guidage de brin (120) servant à renvoyer le brin de coulée de la verticale dans l'horizontale, un dispositif de découpage (130) servant à découper le brin de coulée (120) en bandes métalliques de longueurs prédéfinies, un four tunnel (140), un laminoir Steckel (162), un tronçon de refroidissement (170) et un dispositif d'enroulement (180). L'invention vise à proposer une installation de laminage de coulée continue connue de ce type présentant une structure compacte en hauteur, à la fabriquer de manière avantageuse en termes de prix et plus simple d'utilisation. A cet effet, selon l'invention, la longueur d'appui de l'installation de laminage de coulée continue, qui s'étend du niveau de coulée dans la coquille jusqu'au dernier rouleau de la deuxième partie parallèle du système de guidage de brin est comprise entre 2 et 5 m, et la partie verticale du système de guidage de brin est formée à partir de deux segments au maximum comprenant un côté immobile et un côté lâche.
EP14744846.8A 2013-07-30 2014-07-29 Installation de laminage de coulée continue de bandes métalliques Active EP3027330B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310214939 DE102013214939A1 (de) 2013-07-30 2013-07-30 Gießwalzanlage zum Herstellen von Metallbändern
PCT/EP2014/066319 WO2015014865A1 (fr) 2013-07-30 2014-07-29 Installation de laminage de coulée continue de bandes métalliques

Publications (2)

Publication Number Publication Date
EP3027330A1 true EP3027330A1 (fr) 2016-06-08
EP3027330B1 EP3027330B1 (fr) 2018-09-26

Family

ID=51257496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14744846.8A Active EP3027330B1 (fr) 2013-07-30 2014-07-29 Installation de laminage de coulée continue de bandes métalliques

Country Status (4)

Country Link
EP (1) EP3027330B1 (fr)
CN (1) CN105492132B (fr)
DE (1) DE102013214939A1 (fr)
WO (1) WO2015014865A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020001005A1 (fr) * 2018-06-29 2020-01-02 宝山钢铁股份有限公司 Équipement et procédé de production en continu de bandes de plaques composites métalliques

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210863A1 (de) 2015-04-15 2016-10-20 Sms Group Gmbh Gieß-Walz-Anlage und Verfahren zu deren Betrieb
DE102018207137A1 (de) * 2018-05-08 2019-11-14 Sms Group Gmbh Gieß-Walz-Anlage, und Verfahren zu deren Betrieb
IT201800006563A1 (it) * 2018-06-21 2019-12-21 Impianto e procedimento per la produzione di un nastro metallico laminato a caldo

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DE4135214C2 (de) 1991-09-19 2000-12-14 Sms Demag Ag Verfahren und Anlage zur Herstellung von Stahlband
EP0535368B1 (fr) * 1991-09-19 1996-06-05 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif de coulée continue d'un lingot métallique
JP3008821B2 (ja) * 1994-07-29 2000-02-14 住友金属工業株式会社 薄鋳片の連続鋳造方法および装置
IT1280171B1 (it) * 1995-05-18 1998-01-05 Danieli Off Mecc Linea di colata verticale per bramme
EP0761326B1 (fr) 1995-09-06 2000-02-09 Sms Schloemann-Siemag Aktiengesellschaft Installation pour la production d'une bande mince laminée à chaud
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IT1405453B1 (it) 2010-06-14 2014-01-10 Danieli Off Mecc Procedimento di laminazione per prodotti piani e relativa linea di laminazione
IT1405344B1 (it) 2010-06-14 2014-01-03 Danieli Off Mecc Linea di laminazione e relativo procedimento
EP2441540A1 (fr) 2010-10-12 2012-04-18 Siemens VAI Metals Technologies GmbH Procédé et installation de production à efficience énergétique d'une bande chaude en acier

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020001005A1 (fr) * 2018-06-29 2020-01-02 宝山钢铁股份有限公司 Équipement et procédé de production en continu de bandes de plaques composites métalliques
EP3804874A4 (fr) * 2018-06-29 2021-07-14 Baoshan Iron & Steel Co., Ltd. Équipement et procédé de production en continu de bandes de plaques composites métalliques
US11788167B2 (en) 2018-06-29 2023-10-17 Baoshan Iron & Steel Co., Ltd. Device and method for manufacturing metal clad strips continuously

Also Published As

Publication number Publication date
CN105492132A (zh) 2016-04-13
EP3027330B1 (fr) 2018-09-26
DE102013214939A1 (de) 2015-02-05
WO2015014865A1 (fr) 2015-02-05
CN105492132B (zh) 2018-11-13

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