EP0761326B1 - Installation pour la production d'une bande mince laminée à chaud - Google Patents

Installation pour la production d'une bande mince laminée à chaud Download PDF

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Publication number
EP0761326B1
EP0761326B1 EP96113523A EP96113523A EP0761326B1 EP 0761326 B1 EP0761326 B1 EP 0761326B1 EP 96113523 A EP96113523 A EP 96113523A EP 96113523 A EP96113523 A EP 96113523A EP 0761326 B1 EP0761326 B1 EP 0761326B1
Authority
EP
European Patent Office
Prior art keywords
stand
reversing
production plant
plant according
stands
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.)
Expired - Lifetime
Application number
EP96113523A
Other languages
German (de)
English (en)
Other versions
EP0761326A1 (fr
Inventor
Günter Dr. Kneppe
Dieter Rosenthal
Stephan Krämer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann 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
Priority claimed from DE19538341A external-priority patent/DE19538341A1/de
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0761326A1 publication Critical patent/EP0761326A1/fr
Application granted granted Critical
Publication of EP0761326B1 publication Critical patent/EP0761326B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21B1/22—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
    • 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
    • B21B1/30—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 non-continuous process
    • B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/02—Austenitic rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic rolling

Definitions

  • the invention relates to a production plant for the production of hot-rolled flat products, consisting of a multi-stand Rolling mill on at least the first stand as a reversing stand is designed, an outlet roller table with devices for cooling of the hot strip and with downstream winding machines for winding of the tape.
  • a generic rolling mill is known from US-A-5 150 597 become.
  • Such rolling plants for the production of hot-rolled strips are generally designed and operated today so that the Forming takes place in the individual scaffolding austenitic, that is, it is ensured that the rolling temperatures in the individual Rolling stands above the GOS line of the iron carbon diagram lie. Only after the last rolling pass, which is necessary to achieve a fine-grained final structure as close as possible to the GOS line should, cooling to the reel temperature takes place with structural change in the cooling section or in the wound bundle.
  • the finish rolling temperature that is the temperature in the last roll stand of the rolling mill depending on the height the carbon content at approx. 840 to 920 ° C.
  • Compliance with the Final rolling temperature is done by changing the final rolling speed, with the natural cooling of the strip in the rolling mill and the supply of heat through the drive power of the roll stands can be controlled.
  • This method can be used without any problems for strip thicknesses above a minimum strip thickness, depending on the type of road is of the order of 1.3 mm. Will this strip thickness below the required rolling speed with values above 12 m per second at the tape head, a height that no longer in the free run on the roller table behind the rolling mill can be mastered.
  • a preferred method sees pre-rolling in austenitic Range up to an intermediate thickness of 2 to 8 mm and one finish roll in the ferritic range to the lowest final thicknesses below of 1.3 mm in front.
  • the rolling stock must be between the two process stages from the final rolling temperature in the austenitic range to the rolling temperature be cooled in the ferritic range. This means one Cooling from the temperature range of 840 to 920 ° C to the Temperature range from 600 to 780 ° C.
  • the finish rolling temperature is after the second deformation stage also in the range of 600 to 780 ° C and thus on the order of magnitude, in which recrystallization of the Structure occurs in the wound bundle.
  • a structure is created which means the use of the product without further cold forming or Allows heat treatment.
  • Compliance is essential for a good result a minimum cooling time for cooling from the austenitic Area in the ferritic area. So that the transformation of austenite sufficient cooling in ferrite, this minimum cooling time be respected. This lies depending on the selected temperature and alloy composition for entry into the first ferritic forming on the order of a few seconds to towards a few minutes.
  • the process described above is implemented in one conventionally designed hot strip mill considerable difficulties.
  • the transition from austenitic to ferritic Forming should be carried out in the thickness range from 2 to 8 mm, that is, in a thickness range in which the rolling stock is roughly in Located in the middle of a conventional finishing train. Because the lead time from scaffolding to scaffolding at this point only a few seconds is, in principle, it is possible to implement cooling, however, adherence to the time required for the conversion cannot be realized. Carrying out ferritic rolling according to the method described is conventional for that designed hot strip mill impossible.
  • At least the first framework the rolling mill is designed as a reversing stand, the at least A reel furnace is upstream and downstream, with between in front of the reel furnace and the following reversing stand controllable cooling device is provided.
  • a production plant constructed in this way can, like conventional ones Plants operated in the austenitic area.
  • This will be Rolled material supplied by a roughing mill or thin slab casting machine, which usually has a thickness of 50 - 100 mm, in one Oven tempered to approx. 1100 ° C and in which one or more Scaffolding existing reversing line (Steckel No) by queuing rolled by one or more stands and in which the Steckel tile subsequent Steckel or reel furnace.
  • the strip is removed from the Steckel furnace withdrawn and in one or more scaffolding of the Steckel tile approx. 5 to 15 mm thick rolled down and then in the input side Steckel oven wound up.
  • the temperature of the belt is in this area still above 850 ° C.
  • the tape is from on the input side of the Steckel furnace and in the Steckel stands and rolled down the rest of the rolling mill to a thickness of approximately 1 mm and wound up by the winding machine.
  • a cooling device be provided, by means of which the approx. 5 to 15 mm thick Belt is cooled to temperatures below 850 ° C.
  • the tape can be converted in the Steckelstrasse and the rest rolled down the rolling mill into a strip with a thickness of approx. 1 mm become.
  • the output side Dispense with reel furnace there is also the possibility on the output side Dispense with reel furnace.
  • the belt is opened in the reversing line rolled down about 5 to 15 mm, again here before the It is decided to wind up on the reel furnace on the input side, whether by switching the cooling device on or off in the following Rolling process in the ferritic or austenitic range should be rolled.
  • Figure 1 shows a continuous caster 1, the scissors 2, a Oven 3, a pair of scissors 4, which is only intended for emergency cuts and a descaling device 5 connects.
  • one each Controllable cooling device follows as required, by means of which the belt if necessary can be cooled in the ferritic range.
  • the strip can also have austenitic temperatures or after cooling in the cooling device 7 with its temperature are only in the ferritic range.
  • a heating device 12 preferably closes the reversing line an induction furnace, which can be used for the belt if necessary temperature required in the austenitic or ferritic range.
  • the heater 12 follows one further scissors 13, a descaling device 14, the rolling mill 15, a winding machine 16, a cooling section 17 and another Winding machine 18.
  • Figure 3 shows a similar production facility as in Figure 2. Here is shown after the emergency scissors 4, the reel furnace 6, which the Cooling and / or descaling device 19, the reversing line 20 ', the descaling device 14, the reversing line 20 ′′ and a Roller table 22 connects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (9)

  1. Installation de production pour la réalisation de produits plats laminés à chaud, comprenant une chaíne de laminage (8, 9, 15, 20) à plusieurs cages, dans laquelle la première cage au moins (8) est réalisée sous forme de cage réversible, comprenant une piste de sortie à rouleaux avec des moyens pour le refroidissement de la bande chaude et des machines d'embobinage (16, 18) agencées en aval pour embobiner la bande,
    caractérisée en ce que
    un four à dévidoir respectif (6, 11) est agencé en amont et en aval de la première cage (8) au moins de la chaíne de laminage (20), et en ce qu'il est prévu un dispositif de refroidissement commandé (7) entre le four à dévidoir amont (6) et la cage réversible (8) qui le suit.
  2. Installation de production selon la revendication 1,
    caractérisée en ce qu'il est prévu un dispositif de chauffage (12) entre la cage réversible (8), ou respectivement entre les cages réversibles (8, 9) et la cage suivante de la chaíne de laminage (15).
  3. Installation de production selon l'une ou l'autre des revendications 1 et 2,
    caractérisée en ce qu'il est prévu un dispositif de refroidissement entre la cage réversible (8), ou respectivement entre les cages réversibles (8, 9) et les cages suivantes de la chaíne de laminage (15).
  4. Installation de production de selon l'une des revendications 1 à 3,
    caractérisée en ce que des dispositifs de décalaminage (14) sont associés aux dispositifs de refroidissement et/ou de chauffage (7, 12).
  5. Installation de production selon l'une ou l'autre des revendications 1 et 4,
    caractérisée en ce que toutes les cages de la chaíne de laminage (20) sont réalisées sous forme de cages réversibles.
  6. Installation de production selon la revendication 5,
    caractérisée en ce que la piste de sortie à rouleaux (22) présente une longueur qui permet la réception d'un tronçon non laminé de la bande de coulée.
  7. Installation de production selon la revendication 6,
    caractérisée en ce que seule la machine d'embobinage (16, 18) est disposée en aval de la chaíne de laminage (20', 20").
  8. Installation de production selon l'une des revendications 1 à 7,
    caractérisée en ce que le four à dévidoir (6) disposé en amont de la première cage de laminoir (8) est susceptible de fonctionner avec une température prédéterminée.
  9. Installation de production selon l'une des revendications 1 à 8,
    caractérisée en ce qu'il est prévu deux fours à dévidoir en amont de la première cage de laminoir (8), maintenus de préférence à des températures différentes.
EP96113523A 1995-09-06 1996-08-23 Installation pour la production d'une bande mince laminée à chaud Expired - Lifetime EP0761326B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19532792 1995-09-06
DE19532792 1995-09-06
DE19538341 1995-10-14
DE19538341A DE19538341A1 (de) 1995-09-06 1995-10-14 Warmbandproduktionsanlage für das Walzen von dünnem Walzband

Publications (2)

Publication Number Publication Date
EP0761326A1 EP0761326A1 (fr) 1997-03-12
EP0761326B1 true EP0761326B1 (fr) 2000-02-09

Family

ID=26018324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113523A Expired - Lifetime EP0761326B1 (fr) 1995-09-06 1996-08-23 Installation pour la production d'une bande mince laminée à chaud

Country Status (7)

Country Link
US (2) US5743125A (fr)
EP (1) EP0761326B1 (fr)
JP (1) JP4024329B2 (fr)
CN (1) CN1106233C (fr)
AT (1) ATE189627T1 (fr)
CA (1) CA2184798C (fr)
ES (1) ES2142528T3 (fr)

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NL1003293C2 (nl) * 1996-06-07 1997-12-10 Hoogovens Staal Bv Werkwijze en inrichting voor het vervaardigen van een stalen band.
CA2275873C (fr) 1996-12-19 2005-02-08 Hoogovens Staal B.V. Procede et dispositif de production d'un ruban ou d'une tole d'acier
GB2322320A (en) * 1997-02-21 1998-08-26 Kvaerner Metals Cont Casting Continuous casting with rolling stages separated by a temperature controlling stage
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
EP0893168B1 (fr) * 1997-07-23 2002-05-22 SMS Demag AG Méthode pour produire des bandes à chaud de 0.5 mm d'épaisseur dans un train
DE19758108C1 (de) * 1997-12-17 1999-01-14 Mannesmann Ag Produktionsverfahren und -anlage zur endlosen Erzeugung von warmgewalzten dünnen Flachprodukten
GB9802443D0 (en) * 1998-02-05 1998-04-01 Kvaerner Metals Cont Casting Method and apparatus for the manufacture of light gauge steel strip
GB9803409D0 (en) * 1998-02-19 1998-04-15 Kvaerner Metals Davy Ltd Method and apparatus for the manufacture of light gauge steel strip
DE19815032A1 (de) * 1998-04-03 1999-10-07 Schloemann Siemag Ag Walzverfahren für ein Metallband
US6182490B1 (en) * 1999-03-19 2001-02-06 Danieli Technology Inc. Super thin strip hot rolling
DE10137944A1 (de) * 2001-08-07 2003-02-20 Sms Demag Ag Warmwalzanlage
DE10203711A1 (de) * 2002-01-31 2003-08-14 Sms Demag Ag Verfahren und Anlage zur Herstellung von Warmband aus austenitischen nichtrostenden Stählen
DE102008010062A1 (de) * 2007-06-22 2008-12-24 Sms Demag Ag Verfahren zum Warmwalzen und zur Wärmebehandlung eines Bandes aus Stahl
CN101590488B (zh) * 2008-05-27 2011-06-15 中冶赛迪工程技术股份有限公司 一种热轧带钢粗轧工序的轧制工艺技术
EP2301685A1 (fr) * 2009-09-23 2011-03-30 Siemens Aktiengesellschaft Procédé de commande pour une installation de traitement d'un produit de laminage étendu en longueur
BR112012022221A2 (pt) * 2010-03-11 2016-07-05 Sumito Metal Ind Ltd processo para a fabricação e aparelho para a fabricação de folha de aço laminado a quente
CN101882796B (zh) * 2010-06-02 2013-03-27 马鞍山钢铁股份有限公司 一种高速线材轧机抛尾速升机械动能回馈速率的控制方法
IT1405453B1 (it) * 2010-06-14 2014-01-10 Danieli Off Mecc Procedimento di laminazione per prodotti piani e relativa linea di laminazione
DE102013214939A1 (de) 2013-07-30 2015-02-05 Sms Siemag Ag Gießwalzanlage zum Herstellen von Metallbändern
CN104785521A (zh) * 2015-04-21 2015-07-22 山东泰山钢铁集团有限公司 410s铁素体不锈钢轧制方法及其系统
JP6233614B2 (ja) * 2016-01-27 2017-11-22 Ｊｆｅスチール株式会社 熱延鋼帯の製造設備列および熱延鋼帯の製造方法
IT201700028768A1 (it) * 2017-03-15 2018-09-15 Danieli Off Mecc Impianto combinato di colata continua e laminazione di nastri metallici a caldo
CN108787745A (zh) * 2017-04-26 2018-11-13 中国宝武钢铁集团有限公司 一种控温连续轧制生产镁合金产品的生产线
CN107876564A (zh) * 2017-12-15 2018-04-06 唐山全丰薄板有限公司 一种铁素体轧制控制装置及其控制工艺
CN109482646B (zh) * 2018-10-31 2020-03-13 燕山大学 基于无头轧制动态变规程铁素体轧制方法

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JP3152241B2 (ja) * 1990-06-12 2001-04-03 株式会社日立製作所 熱間薄板製造設備及び製造方法
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US5540074A (en) * 1994-12-07 1996-07-30 Ipsco Enterprises Inc. Unitary assembly of peripheral devices for use with steckel mill

Also Published As

Publication number Publication date
US5743125A (en) 1998-04-28
CA2184798A1 (fr) 1997-03-07
ATE189627T1 (de) 2000-02-15
JPH09122709A (ja) 1997-05-13
US5910184A (en) 1999-06-08
CN1150554A (zh) 1997-05-28
CN1106233C (zh) 2003-04-23
CA2184798C (fr) 2008-04-08
ES2142528T3 (es) 2000-04-16
JP4024329B2 (ja) 2007-12-19
EP0761326A1 (fr) 1997-03-12

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