EP3504013A1 - Procédé de fabrication d'une bande métallique dans une installation de laminage direct - Google Patents

Procédé de fabrication d'une bande métallique dans une installation de laminage direct

Info

Publication number
EP3504013A1
EP3504013A1 EP17701097.2A EP17701097A EP3504013A1 EP 3504013 A1 EP3504013 A1 EP 3504013A1 EP 17701097 A EP17701097 A EP 17701097A EP 3504013 A1 EP3504013 A1 EP 3504013A1
Authority
EP
European Patent Office
Prior art keywords
rolling
train
furnace
scissors
finishing
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
EP17701097.2A
Other languages
German (de)
English (en)
Other versions
EP3504013B1 (fr
Inventor
Jürgen Seidel
Christoph Klein
Matthias Peters
Cosimo Andreas CECERE
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=57868242&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3504013(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 EP3504013A1 publication Critical patent/EP3504013A1/fr
Application granted granted Critical
Publication of EP3504013B1 publication Critical patent/EP3504013B1/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • 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
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Definitions

  • the invention relates to a method for producing a metallic strip in a cast roll plant, wherein the cast roll plant comprises: a casting machine for casting a slab, - in the conveying direction of the metallic strip of the casting machine
  • first furnace or / and a first Rollgangsdämmrange a first pair of scissors, which is arranged between the casting machine and the first furnace and / or the first Rollgangsdämmrange, a roughing mill with a number of rolling stands, following in the conveying direction of the metallic strip of the roughing second oven or / and a second Rollgangsdämmrange, a second pair of scissors, which is arranged between the roughing and the second furnace and / or the second Rollgangsdämmrange, a finishing mill with a number of rolling stands, a cooling line, at least two reel or a reel and - a third scissors, the is arranged between the cooling section and the coiler.
  • CSP plants thin slab casting rolling mills
  • Thin slab casting rolling mills for rolling single bands or for continuous rolling are already well mentioned in the prior art.
  • the invention is therefore based on the invention of further developing a method of the type mentioned above in such a way that an increased degree of flexibility is possible; In doing so, it is intended to be able to react flexibly, in particular to different operating conditions.
  • the proposed system concept and mode of operation should therefore be characterized by a high degree of flexibility.
  • the solution to this problem by the invention is characterized in that at least one of the following operating modes is selected for the production of the strip: a) continuous rolling, in which the casting machine, the roughing train and the
  • Finishing line are operatively connected to each other and the rolling of the material is carried out with pourer mass flow, the finished tapes are separated at the coiler by means of the third pair of scissors; an endless rolling in the roughing train in which the casting machine and the roughing train are operatively connected to each other and rolling the material with pouring mass flow, as well as a single belt rolling (batch operation) in the finishing train, wherein the pre-belts rolled in the roughing train for the single strip rolling in the finishing train are separated by means of the second pair of scissors; c) a single belt rolling (batch mode) in the roughing and a
  • Single belt rolling (batch operation) in the finishing train wherein the slabs produced in the casting machine for the single strip rolling in the roughing train and in the finishing train are separated by means of the first pair of scissors; a semi-endless rolling in the roughing train and / or a semi-endless rolling in the finishing train, wherein the slabs produced in the casting machine for semi-endless rolling in the roughing are separated by means of the first scissors and / or wherein the pre-straightened in the roughing mill for the semi-endless rolls are separated in the finishing line by means of the second pair of scissors, wherein the finished strips are separated at the coiler by means of the third pair of scissors.
  • At least one slab is preferably placed in the first furnace and / or in the first roll-partitioning section.
  • At least one slab or a sliver is placed in the second furnace and / or in the second Rollgangsdämmrange.
  • the abovementioned operating modes a), b), c) and / or d) can be selected as a function of the final thickness of the strip.
  • the operating modes a), b), c) and / or d) may be selected as a function of the starting process of the cast rolling mill. Furthermore, it is possible for the operating modes a), b), c) and / or d) to be selected as a function of a roll change taking place in the roughing train and / or in the finishing train.
  • one of the above operating modes is selected and the production is then carried out with this mode; Accordingly, only one of the named options a), b), c) or d) is realized at a given time.
  • a change between the different ones may also be mentioned
  • the mean slab temperature at the outlet of the first furnace is preferably at least 1000 ° C., more preferably at least 1100 ° C.
  • the mean pre-strip temperature at the outlet of the second furnace is preferably at least 1100 ° C., more preferably at least 1150 ° C.
  • the mean pre-strip temperature at the outlet of the second furnace is at least 1150 ° C., the product of the thickness of the strip (h B ) and the speed of the strip (v B ) being at least 350 mm / min, preferably at least 500 mm m / min.
  • n number of stands in the finishing train
  • the temperature in the last active stand of the finishing train is preferably above the ⁇ - ⁇ -phase conversion, in particular above 820 ° C.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure shows schematically the side view of a 1-strand casting and rolling plant for the production of a strip.
  • the proposed thin slab casting rolling mill concept consists of the following main components, which result from the figure:
  • the cast roll plant 2 for the production of the strip 1 initially has a
  • a first furnace 4 is arranged, on the first furnace 4 follows in the conveying direction F a roughing train 5, which has a number of rolling stands R1 and R2. Behind the roughing 5 is followed by a second oven 6, in turn, a finishing train 7 with several
  • Cooling section 8 is arranged, followed by a reel 9.
  • a first scissors S1 is arranged between the caster 3 and the first furnace 4.
  • a second pair of scissors S2 is located behind the roughing train 5 and in front of the second furnace 6.
  • a third pair of scissors S3 is finally located just before the reel 9.
  • the first furnace 4 and / or in the first Rollgangsdämmrange finds at least a single slab space; the at least one individual slab is also provided in FIG the area between the first scissors S1 and the first rolling mill R1 of the roughing road 5 fits.
  • the roughing 5 preferably consists of 1 to 4 stands, with two scaffolds being particularly preferably provided.
  • the second furnace 6 or / and the second roll-passage insulation section behind the roughing train 5 is designed such that at least one individual preliminary strip fits into its horizontal position or extent or at least one single preliminary strip fits into the area between the second shear S2 and the first rolling stand F1 of the
  • Finishing mill 7 fits.
  • the finishing train 7 consists mostly of 1 to 7 stands, preferably 4 to 6 stands are provided.
  • the first scissors S1 is a slitter scissors for separating the slabs leaving the casting machine 3.
  • the second scissors S2 is a Vorbandschere to
  • the third pair of scissors S3 is a band shears for separating the bands in front of the reel 9.
  • the three shears S1, S2 and S3 are provided to realize the above-mentioned different operation modes.
  • the cast rolling mill 1 preferably no rapid heating (eg in the form of an induction heating) is provided, which is advantageous when using less expensive gas and from an energy point of view.
  • the first furnace 4 and / or the second furnace 6 for example, and preferably in the form of a roller hearth furnace
  • an induction heater can also be optionally arranged behind said roller-track insulation sections.
  • An arrangement of furnace parts and Rollgangsdämmrown in any order and combination before and / or behind the roughing is possible.
  • the length of the first furnace (4) or the first roll insulation or an array of first furnace parts (4) and Rollgangsdämmrown in any order and combination behind the first scissors (S1) is preferably shorter than the length of the second furnace (6) or the second Rollgangsdämmrange or an arrangement of second oven parts (6) and Rollgangsdämmrown in any order and combination behind the second pair of scissors (S2).
  • a single slab or a single sliver is so long that it can be rolled or produced from a coil with typical produced ring weight.
  • the cast rolling mill (CSP plant) can be operated very flexibly by optimized operation of the main components mentioned.
  • an endless rolling in the roughing train 5 and a continuous rolling in the finishing train 7 are first possible, ie. H.
  • the casting machine 3 and the roughing and finishing line 5, 7 are interconnected. It is rolled with the caster mass flow and separated the bands on the reel 9 with the third scissors S3.
  • the temperature control can by an individual
  • first furnace 4 and the second furnace 6 are the distances between the first scissors S1 and the rolling stand R1 of the roughing train 5 or / and second scissors S2 and rolling mill stand F1 of FIG Mill 7 dimensioned so that they can accommodate more than one slab (for example, 2 or 3 slabs), then a semi-endless band rolling of the first furnace 4 and / or the second furnace 6 and the corresponding plant lines is possible. Then a first separation of the semi-endless slabs on the first scissors S1 or semi-endless slivers on the second scissors S2 and a final division into individual bands with the third scissors S3 in front of the reel 9.
  • the various operating modes can be selected and adjusted.
  • a warming of the rolling plants can, for. B. done in batch mode on roughing and finishing line.
  • a switch to the endless mode in the roughing street can be performed.
  • thinner tapes preferably at thicknesses of less than or equal to 1, 2 mm
  • the roughing and / or the finishing train are operated with temperature-speed-up or it is alternatively the amount of water at least one inter-frame cooling changed accordingly.
  • CSP plant continuous casting plant
  • slab cleaning or descaling
  • the slab is cleaned (descaled) between the last two pairs of string rolls.
  • V spec in m 3 / h / m ⁇ 600 xv preferably V spec in m 3 / h / m ⁇ 450 xv with v as the transport speed of the rolling or cast product in the range of the scale washer in m / s ("x" is the multiplication sign).
  • the active finishing stand number n is preferably adapted to the finished strip thickness h F. The following approximation equation is used for this: n> 5 xh F "0 6
  • Rolling areas with insulation can be divided into different areas (in the longitudinal direction), so that slabs or slab parts or / and Vorbs.
  • Vorbandmaschine can be carried out. As a result, z. B. created buffer times, simply disposed of the cold string or the elimination of disturbances are simplified. In addition, flame cutting machines can be provided in front of and / or behind the furnace parts.
  • the average slab temperature (defined as averaged over the thickness in the middle) at the outlet of the first oven 4 is> 1,000 ° C, preferably> 1,100 ° C.
  • the mean pre-strip temperature at the exit from the second furnace 6 is>
  • inductive heating within the finishing train between finishing stands for continuous or semi-continuous rolling operation is intended to set higher final rolling temperatures (e.g.,> 850 ° C) and / or to selectively influence the mechanical finish tape properties and / or at low casting speeds.
  • finishing train (definition see above) with effective nip lubrication preferably on all stands (optional except last active finishing stand), which achieve a rolling force reduction due to lubrication of> 10% per scaffold.
  • the transition from continuous rolling in batch rolling can be done by cutting on the first shear S1 without a transition wedge.
  • the first shear S1 cuts and the finish rolling of the endless slab is carried out without changing the setup in the rolling stands R1 / R2 of the roughing mill 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention concerne un procédé pour la fabrication d'une bande métallique (1) dans une installation (2) de laminage direct, l'installation (2) de laminage direct comprenant : une machine de coulée (3), un premier four (4), une première cisaille (S1), un train dégrossisseur (5), un deuxième four (6), une deuxième cisaille (S2), un train finisseur (7), une zone de refroidissement (8), une installation de bobinage (9) et une troisième cisaille (S3). Pour pouvoir réagir en souplesse aux différentes conditions de fonctionnement, selon l'invention, pour la fabrication de la bande (1), au moins un des modes de fonctionnement suivants est choisi : a) un laminage continu, dans lequel la machine de coulée (3), le train dégrossisseur (5) et le train finisseur (7) sont reliés fonctionnellement l'un à l'autre ; b) un laminage continu dans le train dégrossisseur (5) ainsi qu'un laminage de bandes individuelles dans le train finisseur (7) ; c) un laminage de bandes individuelles dans le train dégrossisseur (5) et un laminage de bandes individuelles dans le train finisseur (7) ; d) un laminage semi-continu dans le train dégrossisseur (5) et/ou un laminage semi-continu dans le train finisseur (7).
EP17701097.2A 2016-11-10 2017-01-18 Procédé de fabrication d'une bande métallique dans une installation de laminage direct Active EP3504013B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016222122 2016-11-10
DE102016015414 2016-12-23
PCT/EP2017/050950 WO2018086762A1 (fr) 2016-11-10 2017-01-18 Procédé de fabrication d'une bande métallique dans une installation de laminage direct

Publications (2)

Publication Number Publication Date
EP3504013A1 true EP3504013A1 (fr) 2019-07-03
EP3504013B1 EP3504013B1 (fr) 2021-08-11

Family

ID=57868242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17701097.2A Active EP3504013B1 (fr) 2016-11-10 2017-01-18 Procédé de fabrication d'une bande métallique dans une installation de laminage direct

Country Status (6)

Country Link
US (1) US11000888B2 (fr)
EP (1) EP3504013B1 (fr)
JP (1) JP6684968B2 (fr)
CN (1) CN109890524B (fr)
DE (1) DE102017200731A1 (fr)
WO (1) WO2018086762A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017200731A1 (de) 2016-11-10 2018-05-17 Sms Group Gmbh Verfahren zum Herstellen eines metallischen Bandes in einer Gießwalzanlage
CN110616306A (zh) * 2018-06-19 2019-12-27 宝钢湛江钢铁有限公司 一种热轧在线移动保温热处理工艺
DE102019207459A1 (de) * 2018-05-23 2019-11-28 Sms Group Gmbh Gieß-Walzanlage für den Batch- und Endlosbetrieb
ES2953325T3 (es) * 2020-09-24 2023-11-10 Primetals Technologies Austria GmbH Instalación de laminación de compuestos de fundición y procedimiento para operar la instalación de laminación de compuestos de fundición
JP7310772B2 (ja) * 2020-09-29 2023-07-19 Ｊｆｅスチール株式会社 ミルペーシング制御方法
DE102021203262A1 (de) 2021-03-31 2022-10-06 Sms Group Gmbh Anlage und Verfahren zur Herstellung eines metallischen Bands
DE102021207943A1 (de) * 2021-07-23 2023-01-26 Sms Group Gmbh Verfahren zum Herstellen eines metallischen Bandes

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DE19613718C1 (de) 1996-03-28 1997-10-23 Mannesmann Ag Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband
NL1003293C2 (nl) 1996-06-07 1997-12-10 Hoogovens Staal Bv Werkwijze en inrichting voor het vervaardigen van een stalen band.
IT1290743B1 (it) 1997-04-10 1998-12-10 Danieli Off Mecc Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione
AT409227B (de) 1998-08-17 2002-06-25 Voest Alpine Ind Anlagen Verfahren und anlage zur herstellung von warmgewalztem stahlband aus einer stahlschmelze
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DE102017200731A1 (de) 2016-11-10 2018-05-17 Sms Group Gmbh Verfahren zum Herstellen eines metallischen Bandes in einer Gießwalzanlage

Also Published As

Publication number Publication date
JP6684968B2 (ja) 2020-04-22
WO2018086762A1 (fr) 2018-05-17
US20200061685A1 (en) 2020-02-27
DE102017200731A1 (de) 2018-05-17
US11000888B2 (en) 2021-05-11
CN109890524A (zh) 2019-06-14
CN109890524B (zh) 2020-08-28
JP2019535525A (ja) 2019-12-12
EP3504013B1 (fr) 2021-08-11

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