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EP3969194B1 - Laminage à chaud comprenant une configuration flexible des cages de laminoir - Google Patents

Laminage à chaud comprenant une configuration flexible des cages de laminoir Download PDF

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Publication number
EP3969194B1
EP3969194B1 EP20725630.6A EP20725630A EP3969194B1 EP 3969194 B1 EP3969194 B1 EP 3969194B1 EP 20725630 A EP20725630 A EP 20725630A EP 3969194 B1 EP3969194 B1 EP 3969194B1
Authority
EP
European Patent Office
Prior art keywords
stand
rolling
rolls
metal strip
last
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.)
Active
Application number
EP20725630.6A
Other languages
German (de)
English (en)
Other versions
EP3969194C0 (fr
EP3969194A1 (fr
Inventor
Sergey BRAGIN
Manfred Hackl
Konrad Krimpelstaetter
Bernd Linzer
Erich Opitz
Alois Seilinger
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria 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
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Publication of EP3969194A1 publication Critical patent/EP3969194A1/fr
Application granted granted Critical
Publication of EP3969194C0 publication Critical patent/EP3969194C0/fr
Publication of EP3969194B1 publication Critical patent/EP3969194B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • 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
    • 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
    • B21B2001/225—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 by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter

Definitions

  • finishing lines for rolling metal strips are usually operated in this way and finishing lines for rolling metal strips (particularly made of steel) are usually designed in this way.
  • the last rolling stand (and usually also the other rolling stands of the finishing line) is converted in order to replace worn work rolls and, if necessary, worn backup rolls.
  • the configuration of the The rolling stands are not changed. There is only a 1:1 exchange of roller pairs.
  • the rolling stands of hot rolling mills are usually designed as so-called four-high stands.
  • Four-high stands are rolling stands that have backup rolls in addition to the work rolls, on which the work rolls are supported. In English-speaking countries, such rolling stands are often also referred to as 4-high.
  • the problem is usually solved by using work rolls with the smallest possible diameter.
  • the smaller the diameter of the work rolls the lower the torque with which the work rolls can be driven without risking the roll neck breaking.
  • the torque is higher with harder materials. This creates the problem that on the one hand the diameter of the work rolls should be as small as possible in order to achieve the smallest possible final thickness, but on the other hand it must not be too small, otherwise the required torque cannot be transmitted.
  • rolling stands that have a large number of rolls, for example so-called 12-roll rolling stands or 20-roll rolling stands.
  • Such rolling stands cannot be used in hot rolling because they take up too much space and do not allow sufficient cooling of the rolls - especially the work rolls.
  • a rolling mill which has three sequentially successive rolling mills.
  • the first rolling mill is a roughing mill and has four-high rolling mill stands.
  • the second rolling mill is a finishing mill and also has four-high rolling mill stands.
  • the third rolling mill is connected to the finishing mill, with temperature control devices arranged between the finishing mill and the third rolling mill.
  • the third rolling mill has four-high rolling mill stands or six-high rolling mill stands.
  • the preamble of claim 1 is based on this document.
  • From the US 2 039 959 A is a rolling mill stand designed as a six-high stand that can be operated as a four-high stand after the work rolls have been removed. In this state, the intermediate rolls serve as work rolls.
  • the object of the present invention is to create possibilities to produce materials with higher strength with low final thicknesses in a hot rolling mill.
  • an operating method of the type mentioned at the outset is designed in that, as part of the conversion of the last rolling stand, the last rolling stand is converted from a four-high stand to a six-high stand or vice versa between the rolling of the first metal strip and the rolling of the second metal strip, so that the last rolling stand is configured as a four-high stand with work rolls and backup rolls during the rolling of the first metal strip and as a six-high stand with work rolls, intermediate rolls and backup rolls during the rolling of the second metal strip, and that the further rolling stands are configured as four-high stands both during the rolling of the first metal strip and during the rolling of the second metal strip.
  • This conversion makes it possible to roll a metal strip made of a softer material or to roll a metal strip to a greater final thickness, while the last rolling stand - as in the prior art - is configured as a four-high stand. However, if a metal strip made of a harder material is to be rolled to a small final thickness, the last rolling stand can be converted to a six-high stand according to the invention.
  • the rolling plan i.e. the sequence of metal strips to be rolled one after the other
  • the last rolling stand is converted at a time when the work rolls currently in the last rolling stand would have to be removed anyway due to wear.
  • This procedure leads to optimized productivity.
  • the conversion can also be carried out regardless of the state of wear of the work rolls and thus regardless of a replacement of the work rolls (in a four-high stand) or the work rolls and possibly also the intermediate rolls (in a six-high stand) due to wear.
  • the sum of the diameters of the work rolls and intermediate rolls of the last rolling stand configured as a six-high stand corresponds at least approximately - namely to within 20%, preferably to within 10% - to the diameter of the work rolls of the last rolling stand configured as a four-high stand. This allows the adjustment range of the last rolling stand to be optimally utilized both in the four-high stand configuration and in the six-high stand configuration.
  • the conversion of the last rolling stand from a four-high stand to a six-high stand is preferably carried out by removing work rolls from the last rolling stand configured as a four-high stand and installing work rolls and intermediate rolls from the last rolling stand configured as a six-high stand.
  • the conversion of the last rolling stand from a Converting a six-high stand into a four-high stand preferably by removing the work rolls and the intermediate rolls of the last rolling stand configured as a six-high stand and installing the work rolls of the last rolling stand configured as a four-high stand.
  • the work rolls and the intermediate rolls of the last rolling stand configured as a six-high stand are preferably installed or removed as a unit. This allows the conversion to be carried out particularly quickly.
  • the hot rolling mill has a number of additional rolling stands between the first and the last rolling stand, for example two additional rolling stands, three additional rolling stands or four additional rolling stands, so that - including the first rolling stand and the last rolling stand - there are a total of four, five or six rolling stands.
  • the additional rolling stands are configured as four-high stands both during the rolling of the first metal strip and during the rolling of the second metal strip. This means that only the last rolling stand is converted.
  • the work rolls of the last rolling stand configured as a six-high stand may be driven.
  • these work rolls preferably have a diameter that is at least as large as the diameter of the intermediate rolls of the last rolling stand configured as a six-high stand.
  • the intermediate rolls of the last rolling stand configured as a six-high stand it is possible for the intermediate rolls of the last rolling stand configured as a six-high stand to be driven.
  • the work rolls of the last rolling stand configured as a six-high stand preferably have a diameter that is between 50% and 70% of the diameter of the intermediate rolls of the last rolling stand configured as a six-high stand.
  • a hot rolling mill has several rolling stands 1a to 1d.
  • the hot rolling mill can be designed in particular as a finishing mill.
  • a first metal strip 2 is hot rolled in the hot rolling mill.
  • the first metal strip 2 can in particular be a steel strip.
  • the first metal strip 2 runs through the hot rolling mill without stopping and without reversing direction in a transport direction x.
  • the individual sections of the first metal strip 2 thus first pass through the first rolling stand 1a, then the second rolling stand 1b, then the third rolling stand 1c and finally the last rolling stand 1d.
  • the first metal strip 2 Before rolling in the first rolling stand 1a, the first metal strip 2 can be heated to the required rolling temperature, for example in a furnace (not shown).
  • the rolling temperature for a steel strip is usually between 900 °C and 1200 °C.
  • the first metal strip 2 can be wound up into a coil (not shown), for example.
  • all rolling stands 1a to 1d of the hot rolling mill are configured as four-high stands.
  • the rolling stands 1a to 1d each have work rolls 3 and backup rolls 4, but no further rolls. This also applies in particular to the first and last rolling stands 1a, 1d of the hot rolling mill.
  • FIG 2 shows the same hot rolling mill with the same rolling stands 1a to 1d during the rolling of a second metal strip 5.
  • the first rolling stand 1a is still configured as a four-high stand at this time, i.e. during the rolling of the second metal strip 5.
  • at least the last rolling stand 1d is configured as a six-high stand.
  • the backup rolls 4 it therefore has work rolls 6 and intermediate rolls 7.
  • the intermediate rolls 7 are arranged between the backup rolls 4 and the work rolls 6.
  • the other rolling stands 1b, 1c are as shown in FIG 2 are still configured as four-high stands even during the rolling of the second metal strip 5.
  • the working rolls 3 are usually driven.
  • the working rolls 6 are also usually driven.
  • the intermediate rolls 7 can also be driven - usually alternatively.
  • the last rolling stand 1d is converted from a four-high stand to a six-high stand between the rolling of the first metal strip 2 and the rolling of the second metal strip 5.
  • the working rolls 3 of the four-high stand are dismantled.
  • the dismantling is carried out as is generally customary and in FIG 3 indicated by an arrow A, in the axial direction of the working rolls 3 through the window of the operator-side stand. Dashed lines are in FIG 3 the removed work rolls 3 are also shown.
  • the last rolling stand 1d is used as required either as a four-high stand - see in FIG 5 left - or as a sexto frame - see in FIG 5 right - configured.
  • the backup rolls 4 are not changed when the last rolling stand 1d is converted.
  • the backup rolls 4 are therefore the same in the configuration of the last rolling stand 1d as well as Both in the four-high stand and in the configuration of the last rolling stand 1d as a six-high stand, the same support rolls 4 are used.
  • the working rolls 6 and the intermediate rolls 7 of the six-high stand are arranged in a cassette 8.
  • the working rolls 6 and the intermediate rolls 7 of the six-high stand can also be installed as a unit, ie in particular simultaneously.
  • the diameters D, D' and D" of the work rolls 3, the work rolls 6 and the intermediate rolls 7 should preferably be coordinated with one another in such a way that the sum of the diameters D', D" of the work rolls 6 and the intermediate rolls 7 of the six-high stand at least approximately corresponds to the diameter of the work rolls 3 of the four-high stand. Smaller deviations of a maximum of 20%, preferably a maximum of 10%, can, however, be tolerated.
  • the diameters D', D" of the work rolls 6 and the intermediate rolls 7 in the configuration of the last rolling stand 1d as a six-high stand should also be determined taking into account whether the work rolls 6 or the intermediate rolls 7 are driven.
  • the diameter D' of the work rolls 6 can be as large as the diameter D" of the intermediate rolls 7, possibly even larger than the diameter D" of the intermediate rolls 7.
  • the diameter D' of the work rolls 6 is preferably significantly smaller than the diameter D" of the intermediate rolls 7.
  • the diameter D' of the work rolls 6 can be between 50% and 70% of the diameter D" of the intermediate rolls 7.
  • the hot rolling mill can have a continuous casting plant 9.
  • the continuous casting plant 9 is arranged upstream of the first rolling stand 1a.
  • the metal strips 2, 5 are cast in the hot rolling mill before rolling. It is therefore possible to feed the metal strips 2, 5 to the first rolling stand 1a from the casting heat.
  • the hot rolling mill is thus expanded in this case to a combined casting and rolling plant. Due to the presence of the continuous casting plant 9, it is particularly possible to operate the hot rolling mill in continuous operation. Alternatively, however, batch operation is also possible.
  • the hot rolling mill - alternatively or in addition to the continuous casting plant 9 - to have a furnace (not shown in the FIGS).
  • the furnace if present, is arranged upstream of the first rolling stand 1a.
  • upstream rolling stands 10 can also be arranged upstream of the first rolling stand 1a, in particular roughing stands of a roughing train.
  • the upstream rolling stands 10, if present, are arranged downstream of the continuous casting plant 9 and/or the furnace.
  • FIG 6 shows a state in which the rolling stands 1a to 1d are all configured as four-high stands.
  • the continuous casting plant 9 and possibly also the upstream rolling stands 10 are also present when the last rolling stand 1d is configured as a six-high stand.
  • the working rolls 3, 6 can be axially displaceable - both in the configuration as a four-high stand and in the configuration as a six-high stand.
  • the intermediate rolls 7 can also be displaceable relative to the work rolls 6.
  • the bending of the work rolls 3, 6 and optionally also of the intermediate rolls 7 can also be as in the prior art.
  • the work rolls 3 can be arranged slightly offset relative to the support rolls 4, as seen in the transport direction x of the metal strips 2, 5.
  • the last rolling stand 1d When the last rolling stand 1d is configured as a six-high stand, when the work rolls 6 are arranged slightly offset relative to the intermediate rolls 7, as seen in the transport direction x of the metal strips 2, 5. Likewise, when the last rolling stand 1d is configured as a six-high stand, the intermediate rolls 7 can be arranged slightly offset relative to the support rolls 4, as seen in the transport direction x of the metal strips 2, 5. The offset of the work rolls 6 relative to the intermediate rolls 7 and the offset of the intermediate rolls 7 relative to the support rolls 4 are preferably in the same direction. If necessary, any thrust forces can be absorbed by support rollers.
  • the support rollers if present, are arranged on the inlet side and/or outlet side of the work rolls 6. However, such support rollers should be dispensed with if possible.
  • the work rolls 3, 6 are generally cooled both in the four-high stand configuration and in the six-high stand configuration.
  • Appropriate cooling beams are provided for cooling.
  • the cooling beams can be arranged on the inlet side and/or outlet side of the cassette 8 if necessary.
  • the cooling beams can be a component of the last rolling stand 1d as such, so that they are not installed or removed when the configuration of the last rolling stand 1d is changed.
  • the present invention has many advantages. For example, due to the smaller diameter D' of the work rolls 6 compared to the diameter D of the work rolls 3, not only metal strips 2, 5 made of softer materials, but also metal strips 2, 5 made of harder materials can be rolled to low final thicknesses. Subsequent cold rolling can be omitted or can begin with a thinner input product, which in turn means that the output product of the cold rolling can have a lower thickness. Nevertheless, the range of products that can be produced is not impaired, and is often even expanded. In particular, for larger final thicknesses, the required bending stiffness during rolling can be achieved by configuring the last rolling stand 1d as a four-high stand.
  • the pass reduction in the last rolling stand 1d can be maximized in the configuration as a six-high stand, although the rolling forces and rolling moments required for this can still be reduced.
  • This also makes it possible to achieve improved material properties of the second metal strip 5.
  • the microstructure of the second metal strip 5 can be homogenized and so-called shear bands can be prevented.
  • ferritic rolling is possible in the hot rolling mill. This can have a positive effect on the so-called r-value, which characterizes the planar anisotropy and is important for the deep-drawability of the rolled metal strips 2, 5. In the prior art, this requires cold rolling followed by annealing.
  • the present invention eliminates the need for cold rolling and annealing.

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

Claims (5)

  1. Procédé d'exploitation d'un train de laminage à chaud, qui présente au moins une première et une dernière cage de laminoir (1a, 1d),
    - dans lequel dans le train de laminage à chaud sont laminées l'une après l'autre une première et une deuxième bande métallique (2, 5),
    - dans lequel des sections des bandes métalliques (2, 5) traversent à chaque fois d'abord la première et seulement ensuite la dernière cage de laminoir (1a, 1d) du train de laminage à chaud,
    - dans lequel la première cage de laminoir (1a) est configurée comme une cage quarto non seulement pendant le laminage de la première bande métallique (2) mais aussi pendant le laminage de la deuxième bande métallique (5),
    - dans lequel le train de laminage à chaud présente, entre la première et la dernière cage de laminoir (1a, 1d), un certain nombre d'autres cages de laminoir (1b, 1c),
    caractérisé en ce que la dernière cage de laminoir (1d) est convertie entre le laminage de la première bande métallique (2) et le laminage de la deuxième bande métallique (5) d'une cage quarto en une cage sexto ou inversement, de sorte que la dernière cage de laminoir (1d) pendant le laminage de la première bande métallique (2) est configurée comme cage quarto avec des cylindres de travail (3) et des cylindres de support (4) et pendant le laminage de la deuxième bande métallique (5) comme cage sexto avec des cylindres de travail (6), des cylindres intermédiaires (7) et des cylindres de support (4), et en ce que les autres cages de laminoir (1b, 1c) sont configurés non seulement pendant le laminage de la première bande métallique (2) mais aussi pendant le laminage de la deuxième bande métallique (5) comme des cages quarto.
  2. Procédé d'exploitation selon la revendication 1, caractérisé en ce que la somme des diamètres (D', D") des cylindres de travail (6) et des cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto correspond à 20 % exactement, de préférence, à 10 % exactement, du diamètre (D) des cylindres de travail (3) de la dernière cage de laminoir (1d) configurée comme cage quarto.
  3. Procédé d'exploitation selon la revendication 1 ou 2, caractérisé en ce que la conversion de la dernière cage de laminoir (1d) d'une cage quarto en une cage sexto se fait par démontage des cylindres de travail (3) de la dernière cage de laminoir (1d) configurée comme cage quarto et montage des cylindres de travail (6) et des cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto resp. inversement la conversion de la dernière cage de laminoir (1d) d'une cage sexto en une cage quarto se fait par démontage des cylindres de travail (6) et des cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto et montage des cylindres de travail (3) de la dernière cage de laminoir (1d) configurée comme cage quarto.
  4. Procédé d'exploitation selon la revendication 3, caractérisé en ce que lors de la conversion de la dernière cage de laminoir (1d) d'une cage quarto en une cage sexto ou inversement, les cylindres de travail (6) et les cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto sont montés ou démontés en tant qu'unité.
  5. Procédé d'exploitation selon l'une des revendications précédentes, caractérisé en ce que les cylindres de travail (6) de la dernière cage de laminoir (1d) configurée comme cage sexto sont actionnés et présentent un diamètre (D') qui est au moins égal au diamètre (D") des cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto, ou en ce que les cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto sont actionnés et les cylindres de travail (6) de la dernière cage de laminoir (1d) configurée comme cage sexto présentent un diamètre (D') qui se situe entre 50 % et 70 % du diamètre des cylindres intermédiaires (7) de la dernière cage de laminoir (1d) configurée comme cage sexto.
EP20725630.6A 2019-05-16 2020-04-28 Laminage à chaud comprenant une configuration flexible des cages de laminoir Active EP3969194B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50442/2019A AT522073B1 (de) 2019-05-16 2019-05-16 Warmwalzen mit flexibler Konfiguration der Walzgerüste
PCT/EP2020/061706 WO2020229159A1 (fr) 2019-05-16 2020-04-28 Laminage à chaud comprenant une configuration flexible des cages de laminoir

Publications (3)

Publication Number Publication Date
EP3969194A1 EP3969194A1 (fr) 2022-03-23
EP3969194C0 EP3969194C0 (fr) 2024-07-24
EP3969194B1 true EP3969194B1 (fr) 2024-07-24

Family

ID=70682810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20725630.6A Active EP3969194B1 (fr) 2019-05-16 2020-04-28 Laminage à chaud comprenant une configuration flexible des cages de laminoir

Country Status (4)

Country Link
EP (1) EP3969194B1 (fr)
CN (1) CN113811402B (fr)
AT (1) AT522073B1 (fr)
WO (1) WO2020229159A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039959A (en) * 1933-12-28 1936-05-05 Mesta Machine Co Rolling mill
GB665186A (en) * 1949-06-09 1952-01-16 Samuel Fox And Company Ltd Improvements in rolling mills
BR8300010A (pt) * 1982-01-06 1983-08-30 Hitachi Ltd Laminador
JPS6313603A (ja) * 1986-07-04 1988-01-20 Hitachi Ltd 圧延機
DE3707560A1 (de) * 1987-03-10 1988-09-22 Schloemann Siemag Ag Walzgeruest
DE10046426A1 (de) * 2000-09-20 2002-03-28 Sms Demag Ag Kombinierter Antrieb für ein Vierwalzen- bzw. Sechswalzengerüst sowie Betriebsverfahren hierfür
JP4118681B2 (ja) * 2000-12-13 2008-07-16 株式会社日立製作所 ロール組み替え設備及びロール組み替え方法
FR2846579B1 (fr) 2002-11-05 2006-05-05 Vai Clecim Procede pour elargir la gamme de production d'une installation de laminage de produits metalliques et installation pour la mise en oeuvre du procede
FR2851942B1 (fr) * 2003-03-05 2006-04-28 Procede de changement de configuration d'un laminoir et laminoir perfectionne pour la mise en oeuvre du procede
DE102009037278A1 (de) * 2009-08-12 2011-02-17 Sms Siemag Ag Vorrichtung und Verfahren zum Herstellen eines dünnen Warmbandes
DE102010014346A1 (de) * 2010-04-09 2011-10-13 Sms Siemag Ag Verfahren zum fliegenden Arbeitswalzenwechsel in Gießwalzanlagen und Warmbandstraßen
CN102303045B (zh) * 2011-09-22 2013-05-29 燕山大学 四六辊互换轧机
CN202290723U (zh) * 2011-09-22 2012-07-04 燕山大学 四六辊互换轧机
IT201700028768A1 (it) * 2017-03-15 2018-09-15 Danieli Off Mecc Impianto combinato di colata continua e laminazione di nastri metallici a caldo

Also Published As

Publication number Publication date
EP3969194C0 (fr) 2024-07-24
AT522073A4 (de) 2020-08-15
CN113811402B (zh) 2024-03-12
CN113811402A (zh) 2021-12-17
EP3969194A1 (fr) 2022-03-23
WO2020229159A1 (fr) 2020-11-19
AT522073B1 (de) 2020-08-15

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