EP0919296B1 - Adaption des trains de laminage chauds pour laminer des bandes minces - Google Patents

Adaption des trains de laminage chauds pour laminer des bandes minces Download PDF

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Publication number
EP0919296B1
EP0919296B1 EP97120406A EP97120406A EP0919296B1 EP 0919296 B1 EP0919296 B1 EP 0919296B1 EP 97120406 A EP97120406 A EP 97120406A EP 97120406 A EP97120406 A EP 97120406A EP 0919296 B1 EP0919296 B1 EP 0919296B1
Authority
EP
European Patent Office
Prior art keywords
rolling
strip
hot strip
hot
oven
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
EP97120406A
Other languages
German (de)
English (en)
Other versions
EP0919296A1 (fr
Inventor
Dieter Rosenthal
Günter Dr. Kneppe
Dieter Ladda
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 Demag 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
Application filed by SMS Demag AG filed Critical SMS Demag AG
Priority to DE59709709T priority Critical patent/DE59709709D1/de
Priority to AT97120406T priority patent/ATE235972T1/de
Priority to EP97120406A priority patent/EP0919296B1/fr
Priority to ES97120406T priority patent/ES2196240T3/es
Priority to US09/196,379 priority patent/US6122950A/en
Publication of EP0919296A1 publication Critical patent/EP0919296A1/fr
Application granted granted Critical
Publication of EP0919296B1 publication Critical patent/EP0919296B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/142—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving along a vertical axis
    • 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
    • B21B2201/00—Special rolling modes
    • B21B2201/02—Austenitic rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B2009/3094—Means to store a part of the charge in the furnace

Definitions

  • the invention relates to a hot strip mill with a Walking beam furnace, a reversing scaffold downstream of this and if necessary. Scissors and / or descaling devices, and a following Hot strip finishing mill for manufacturing thin, austenitic rolled Hot strip.
  • Such hot strip mills are in operation in large numbers. With These hot strip mills can be used for hot strips with a thickness of Roll 1.5 mm, at best 1.2 mm. This is where these hot strip mills meet to its limits. A further reduction in the strip thickness is not possible with these roads. There are two reasons: On the one hand, the mean temperature of the strip at the exit of the last stand of the hot strip finishing mill approx. 890 ° C to 930 ° C do not fall below to guarantee an austenitic rolling. On the other hand, the speed at the exit of the last scaffolding is allowed do not exceed the hot strip finishing train approx. 11.0 to 12.5 m / s, otherwise the hot strip on the outlet roller table is not can be guided more properly and then reeled. In addition, the threading in the hot strip mill at such high speeds is problematic.
  • the slabs are cut in several in the roughing mill of a hot strip mill Roll stitches rolled out to a supporting strip. It forms over the Length of the supporting strip made of a temperature wedge, which is essentially by the decrease distribution during rolling and the rolling speeds being affected.
  • the hot strip finishing mill is regularly turned into the hot strip finishing mill introduced, which at its edges a Temperature level at the lower limit of that for the first roll stand the hot strip finishing line has the necessary temperature, the However, the mean belt temperature is correspondingly too high.
  • the strip center temperature as mentioned above, be at least approx. 890 ° C to 930 ° C.
  • JP 54 120 267 A is already a continuously operating hot strip mill known in the between a roughing mill and a finishing train a compensating furnace is provided. According to this document will not be an existing rolling mill was used. Rather, it is a completely new construction, in which the compensating furnace also for rolling Strips with thicknesses above 1.2 mm are always included in the rolling process is.
  • EP 531 755 A1 also discloses a rolling mill for producing Hot wide strip in which furnaces between a roughing train and a finishing train are provided.
  • the concept proposed here is not suitable for in an existing hot strip mill to be realized as the rolling mill builds very long due to the stoves.
  • GB 2 301 660 A and DE 704 660 C disclose stoves. The subsequent one Installation of these furnaces for the purpose of equalizing the temperature of the rolling stock and for the subsequent rolling out of the rolling stock under 1.2 mm is not suggested.
  • the invention is based, hot strip mills by means of the task which can be rolled down to thicknesses of 1.5 to 1.2 mm or to retrofit that the rolled strip thickness is reduced to less than 1 mm can, the retrofit should be as inexpensive as possible.
  • the temperature in the edge area of the Supporting tape, from the beginning or end of the tape and any existing skidmarks compensate so that a support strip is produced with a homogeneous temperature
  • the temperature of the sliver leaving the equalizing furnace to the lowest input temperature required for the hot strip finishing train can be.
  • the pre-strip temperature is constant over length and width for absolutely stationary process conditions in the finishing train to care. This creates the best possible conditions for rolling of tapes with minimal final tape thicknesses.
  • induction heaters are assigned to the compensating furnace, then specifically colder areas of the belt heated up or the temperature level be influenced overall. Will the Compensating furnace arranged parallel to each other, so this can by simple parallel horizontal or vertical shifting brought to the rolling line for loading or unloading in the rolling line become.
  • this allows the support strip to enter the rolling line in one cycle be involved, with the actual heating device in parallel is arranged to the rolling line.
  • the compensating furnace is designed as a roller hearth furnace is to make sure there are no skidmarks can.
  • the compensation furnace can be removed from the Extend the rolling line and a conventional roller table in its place retract.
  • Figure 1 shows a walking beam furnace 1, which in the rolling direction 2 Reversing frame 3 connects.
  • the feed, z. B. blocks, heated, and from the furnace 1 to the reversing frame 3 given where it was rolled to support strip in several passes becomes.
  • Figure 2 shows between the reversing stand 3 and the hot strip finishing train 6 a compensating furnace 7.
  • the compensating furnace 7 has several Recording places 8 to 8 '' ''. These are in the direction of arrow 9 displaceable, the arrangement shown for both in a essentially horizontal as well as for a substantially vertical arranged compensation furnace 7 should stand.
  • an induction heater 10 is shown in front of the equalizing furnace 7.
  • FIG. 3 shows the furnace 1, the reversing stand 3 and the hot strip finishing train 6. Furthermore, two ferries 11 and 12 can be seen, between which the consecutively arranged recording spaces 13 to 13 '' ' of the compensating furnace 7 'are arranged.
  • the support is brought back to ferry 11 and here from the Move the rolling line out into the line of the receiving positions 13 to 13 '' '.
  • the pre-strips are re-formed and after pushed into the ferry 12, by means of which they again in the Rolling line and from there to hot strip finishing line 6 become.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Metal Rolling (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Luminescent Compositions (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (8)

  1. Train à bandes laminées à chaud présentant un four à longerons mobiles (1), au moins une cage réversible (3) disposée après ledit four et le cas échant une cisaille (4) et/ou des dispositifs de décalaminage (5) ainsi qu'un train finisseur de bandes à chaud (6) consécutif dans le même train pour la fabrication de bandes laminées à chaud dans la forme austénitique, minces, caractérisé en ce qu'on prévoit pour diminuer la vitesse maximale et/ou pour diminuer davantage l'épaisseur de la bande laminée, entre la cage réversible (3) et le train finisseur de bandes laminées à chaud (6), un four de compensation (7, 7') pouvant être transporté hors de la ligne de laminage, qui garantit par un certain nombre d'emplacements (8-8"" ; 13-13"') pour des ébauches de bandes pouvant être chauffées en compensation, un temps de chauffage total pour chaque ébauche de bande, qui représente un multiple du temps de laminage dans le train finisseur de bandes laminées à chaud (6).
  2. Train à bandes laminées à chaud selon la revendication 1, caractérisé en ce qu'un chauffage par induction (10) au moins actif dans des zones de largeur pouvant être sélectionnées au préalable de l'ébauche de bande est associé au four de compensation (7, 7').
  3. Train à bandes laminées à chaud selon la revendication 2, caractérisé en ce que le chauffage par induction (10) est disposé en amont du four de compensation (7, 7') ou est intégré dans son entrée.
  4. Train à bandes laminées à chaud selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les emplacements (8-8"") du four de compensation (7) sont disposés parallèlement les uns par rapport aux autres et en ce que les emplacements (8-8"") peuvent être déplacés horizontalement, transversalement au sens de laminage (2).
  5. Train à bandes laminées à chaud selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les emplacements (8-8"") du four de compensation (7) sont disposés parallèlement les uns par rapport aux autres et en ce que les emplacements (8-8"") peuvent être déplacés verticalement, transversalement au sens de laminage (2).
  6. Train à bandes laminées à chaud selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'au moins un bac (11, 12) pouvant être déplacé transversalement par rapport au sens de laminage (2), destiné à recevoir au moins une ébauche de bande est associé au four de compensation (7').
  7. Train à bandes laminées à chaud selon la revendication 6, caractérisé en ce que les emplacements (13-13"') du four de compensation (7') sont disposés l'une derrière l'autre et en ce que des bacs (11, 12) sont prévus au niveau des deux extrémités du four de compensation (7').
  8. Train à bandes laminées à chaud selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il s'agit d'un four à rouleaux pour le four de compensation (7, 7').
EP97120406A 1997-11-21 1997-11-21 Adaption des trains de laminage chauds pour laminer des bandes minces Expired - Lifetime EP0919296B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59709709T DE59709709D1 (de) 1997-11-21 1997-11-21 Nachrüstung von Warmwalzstrassen zum Walzen von dünnen Bändern
AT97120406T ATE235972T1 (de) 1997-11-21 1997-11-21 Nachrüstung von warmwalzstrassen zum walzen von dünnen bändern
EP97120406A EP0919296B1 (fr) 1997-11-21 1997-11-21 Adaption des trains de laminage chauds pour laminer des bandes minces
ES97120406T ES2196240T3 (es) 1997-11-21 1997-11-21 Reequipamiento de trenes laminadores en caliente para laminar bandas delgadas.
US09/196,379 US6122950A (en) 1997-11-21 1998-11-19 Hot rolling train for rolling thin strips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97120406A EP0919296B1 (fr) 1997-11-21 1997-11-21 Adaption des trains de laminage chauds pour laminer des bandes minces

Publications (2)

Publication Number Publication Date
EP0919296A1 EP0919296A1 (fr) 1999-06-02
EP0919296B1 true EP0919296B1 (fr) 2003-04-02

Family

ID=8227654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120406A Expired - Lifetime EP0919296B1 (fr) 1997-11-21 1997-11-21 Adaption des trains de laminage chauds pour laminer des bandes minces

Country Status (5)

Country Link
US (1) US6122950A (fr)
EP (1) EP0919296B1 (fr)
AT (1) ATE235972T1 (fr)
DE (1) DE59709709D1 (fr)
ES (1) ES2196240T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016105622B4 (de) 2016-03-24 2022-01-13 Ludwig Hettich Holding Gmbh & Co. Kg Verfahren zur Herstellung eines Schraubankers mit einem metrischen Anschlussgewinde

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407348B (de) * 1997-10-10 2001-02-26 Voest Alpine Ind Anlagen Verfahren zum herstellen eines warmgewalzten produktes und anlage zur durchführung des verfahrens
GB2340759B (en) * 1998-08-26 2003-05-07 Bespak Plc Improvements in drug delivery devices
IT1400913B1 (it) * 2010-06-24 2013-07-02 Danieli Off Mecc Procedimento e impianto di colata e laminazione per realizzare prodotti laminati metallici lunghi
EP3714999B1 (fr) * 2019-03-28 2022-09-28 Primetals Technologies Germany GmbH Détermination de la nomination d'un rouleau
CN118023287A (zh) * 2022-11-11 2024-05-14 达涅利机械设备股份公司 生产平轧产品的设施和方法
CN118023294A (zh) * 2022-11-11 2024-05-14 达涅利机械设备股份公司 用于改造生产扁平轧制产品的设备的方法

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US1839789A (en) * 1927-11-10 1932-01-05 United Eng Foundry Co Rolling sheets
DE704660C (de) * 1938-07-12 1941-04-03 Mannesmann Ag In die Foerdervorrichtung zweier hintereinanderliegenden Warmbearbeitungsvorrichtungen (Walzwerke) eingebauter Ofen
JPS54120267A (en) * 1978-03-13 1979-09-18 Toshiba Corp Continuous hot rolling mill
ATE46463T1 (de) * 1986-10-13 1989-10-15 Schloemann Siemag Ag Herstellung von warmgewalztem stahlband aus stranggegossenen brammen.
JPS63252604A (ja) * 1987-04-08 1988-10-19 Hitachi Ltd 連鋳直結圧延方法及び装置
CA2004548C (fr) * 1988-12-05 1996-12-31 Kenji Aihara Matiere metallique a grain ultra-fin et methode de fabrication
DE4017928A1 (de) * 1990-06-05 1991-12-12 Schloemann Siemag Ag Verfahren und anlage zur herstellung von warmgewalzten baendern oder profilen aus stranggegossenem vormaterial
ATE147442T1 (de) * 1991-02-19 1997-01-15 Danieli Off Mecc Tunnelsystem zum verbinden eines warmbandwalzwerkes mit einer stranggussanlage für dünne platten
DE4129749A1 (de) * 1991-09-09 1993-03-11 Schloemann Siemag Ag Walzstrasse zur erzeugung von warmbreitband
US5511303A (en) * 1992-05-12 1996-04-30 Tippins Incorporated Intermediate thickness and multiple furnace process line
IT1259487B (it) * 1992-08-26 1996-03-20 Danieli Off Mecc Procedimento per la produzione di lamiere sottili ed impianto di laminazione compatto adottante tale procedimento
TW245661B (fr) * 1993-01-29 1995-04-21 Hitachi Seisakusyo Kk
DE19512953A1 (de) * 1995-03-28 1996-10-02 Mannesmann Ag Verfahren und Vorrichtung zur Herstellung von warmgewalztem Stahlband
GB2301660B (en) * 1995-06-01 1998-11-04 Ralph Gladwin Haynes Improvements in furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016105622B4 (de) 2016-03-24 2022-01-13 Ludwig Hettich Holding Gmbh & Co. Kg Verfahren zur Herstellung eines Schraubankers mit einem metrischen Anschlussgewinde

Also Published As

Publication number Publication date
EP0919296A1 (fr) 1999-06-02
ATE235972T1 (de) 2003-04-15
ES2196240T3 (es) 2003-12-16
US6122950A (en) 2000-09-26
DE59709709D1 (de) 2003-05-08

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