EP0879100B1 - Procede et dispositif pour le laminage reversible de feuillards metalliques - Google Patents

Procede et dispositif pour le laminage reversible de feuillards metalliques Download PDF

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Publication number
EP0879100B1
EP0879100B1 EP97900893A EP97900893A EP0879100B1 EP 0879100 B1 EP0879100 B1 EP 0879100B1 EP 97900893 A EP97900893 A EP 97900893A EP 97900893 A EP97900893 A EP 97900893A EP 0879100 B1 EP0879100 B1 EP 0879100B1
Authority
EP
European Patent Office
Prior art keywords
strip
rolling
several
strips
coiling
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
EP97900893A
Other languages
German (de)
English (en)
Other versions
EP0879100A1 (fr
Inventor
Friedrich Moser
Gerhard Finstermann
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
Voest Alpine Industrienlagenbau 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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0879100A1 publication Critical patent/EP0879100A1/fr
Application granted granted Critical
Publication of EP0879100B1 publication Critical patent/EP0879100B1/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
    • B21B1/46—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
    • 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
    • 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
    • C21D9/68—Furnace coilers; Hot coilers
    • 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
    • B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Definitions

  • the invention relates to methods for producing a hot reversely rolled strip, in particular a steel strip, a strip being cast either directly or by continuous casting is produced by continuous casting and subsequent roughing, then the strip in hot rolled several passes and wound into a bundle after each pass is, as well as a device for performing the method.
  • a method for reversing rolling a hot strip is, for example, also in the DE-A-29 00 648.
  • the tape is applied after each Roll pass by a winding device designed as a reel furnace.
  • a winding device designed as a reel furnace.
  • a hot rolling process of this type and the type described at the outset result temperature differences between the strip ends and strip edges during rolling and belt middle parts.
  • temperature compensation is to the extent that the strip ends or strip edges in turn are not too ideal from the ideal rolling temperature very different temperature, not possible, as this is a longer break between would require two successive roll passes, i.e. the rolling process would have to to be interrupted.
  • Inadequate use of the reversing roller device as well The result would be a decline in production.
  • the invention aims at avoiding these disadvantages and difficulties and presents itself the task, a method of the type described above and a device for To carry out the process, which make it possible, in combination with the Production of a strip in a continuous caster on the one hand the reversing roller device to make the best possible use over their entire service life, i.e. a rolling mill without Maintain interruptions and without loss of production volume and yet optimal for the strip to be rolled while saving as much energy as possible To achieve temperature conditions. Furthermore, temperature differences between the Tape ends and the tape edges and tape center pieces are kept so low that they neither for the rolling process, for the rolling devices, nor for the quality of the strip have adverse effects.
  • This object is achieved according to the invention in a method of the type described in the introduction solved in that two or more strips are alternately rolled and during the Rolling one of the strips in at least one roll pass the other strip or the others The tapes remain in a waiting position wound into a bundle.
  • the method according to the invention also enables lower final thicknesses to be achieved, e.g. without additional energy expenditure. Furthermore, there is an improvement in the geometric Product tolerances (profile, thickness, flatness) in a simple manner and without great Additional effort possible.
  • the temperature compensation also means that The increase in the rolling force when the strip ends are inserted into the roll stand is minimized and the Roller bearings less stressed.
  • the band or bands it is expedient for the band or bands to form a bundle a heat compensation carried out, e.g. including the Band end or the band ends.
  • the method according to the invention enables not only optimal temperature conditions adjust for rolling, but it can also be used for that To improve the material properties of the tape before or after a stitch acceptance, i.e. by a specific temperature effect, for example depending on the thickness and Quality of the rolled stock, physical properties of the strip or structure of the Band to improve, etc. in that for the tape or tapes in a bundle wound waiting position a heat treatment, in particular heating, is carried out, etc. including the tape end or the tape ends.
  • a heat treatment in particular heating
  • the Reversing roll stand provided two winding devices.
  • the winding devices are advantageously equipped with a heat insulation jacket. she could also be set up in a heated room.
  • the winding devices are expediently designed as reel furnaces and preferably with a heating device.
  • the winding device In order to be able to wind up the tape ends completely, it is advisable Provide the winding device with a device that winds up and unwinds the end of the tape.
  • Winding device with an insulated, possibly heatable, largely closed inlet or outlet zone is provided.
  • At least one winding device with a protective gas device is advantageous fitted.
  • Fig. 1 is a schematically illustrated arrangement of a Playing winding device in side view. 2 and 3 show in to Fig. 1 analog representation of other embodiments. 4 to 6 is the arrangement according to the invention a winding device each shown in a network with a continuous caster.
  • Fig. 1 shows an overall arrangement of a device for performing a Reverse rolling with a reversing roll stand 1, either as a roughing stand or as Finishing stand (Steckel scaffold) can be designed.
  • a device for performing a Reverse rolling with a reversing roll stand 1 either as a roughing stand or as Finishing stand (Steckel scaffold) can be designed.
  • On one side 2 of the Reversing roll stand 1 are two winding devices designed as reel furnaces 3 and 3 ' arranged.
  • 3 to 3 " can be arranged between the coiler furnaces instead of the single one Reversing roll stand 1 also a multiple stand, in which the belt 9 or 9 'at one Passes two or more stitch approvals.
  • the reel ovens 3 to 3 " are equipped with drivable reel mandrels 5 and each with equipped with a heat-insulated jacket 6. If necessary, they have heating devices 7 to a certain temperature level in the interior 8, 8 'of each coiler 3 to 3 " hold.
  • the reel furnaces 3 to 3 " are designed in such a way that the strip ends of the rolling strip 9, 9 'completely drawn into the interior 8 of the reel furnaces 3 to 3 " can be.
  • the reel furnaces 3 to 3 " have corresponding devices on how drive rollers 10 that can grasp the tape end and from each Can pull out reel furnace 3 to 3 ", as well as so-called coil opener 11, that is Wedge-shaped, 12 adjustable devices on the wound coil - also Called collar opening swords - which allow the end of the band to be detached from collar 12 and lead out of the interior 8 of each reel furnace 3 to 3 "
  • Bundle opener 11 on the bundle surface of a bundle 12 wound on a coiler mandrel 5 serve actuators not shown.
  • a 3 to 3 "coiler can also be used with an insulated, possibly heatable Entry or exit zone may be provided, which is optionally pivotable to the Bring the belt and the entry and exit zones out of the roller table area.
  • two strips 9, 9 ' can be rolled alternately become. While one strip 9 is being rolled, the other strip 9 'in the second is both on the side 2 of the reversing roll stand 1 adjacent coiler furnaces 3, 3 'in to a bundle 12 wound waiting position. While the band 9 'remains here until it is used for rolling, i.e. the other band 9 in two or more roll passes rolled, temperature compensation or heat treatment, possibly even be carried out under a protective gas atmosphere. Then when the second strip 9 'is rolled is, the first rolled strip 9 is in a waiting position wound into a bundle and can in turn be subjected to temperature compensation for subsequent rolling passes become.
  • reel mandrels 5 arranged adjacent and surrounded by a common heat protection housing 6. 2
  • the reel mandrels 5 are in a horizontally adjacent arrangement and according to FIG. 3 arranged in a vertically adjacent arrangement.
  • a continuous caster 13 with a mold 14, a roller guide track 15 and one of these downstream separating device 16, a temperature compensation furnace 17th downstream to accommodate tapes separated from the strand.
  • Strand 18 is like him emerges from the mold 14, not thin enough to be wound in the solidified state To be able to be, is in the continuous caster not shown Roughing mill provided for rolling a windable strand 18.
  • winding devices 3 to 3 "'and a reversing roll stand 1 is arranged in between. According to that shown in Fig. 4 Exemplary embodiments are on each side 2 and 4 of the reversing roll stand 1, respectively two reel furnaces 3, 3 'and 3 ", 3"' are provided. It could also be more or just on one of the two sides 2 and 4 of the reversing roll stand 1 is a single coiler.
  • the function is as follows: First, a band 9 'separated from the strand 18 is inserted into the Temperature compensation furnace 17 directly fed, etc. with a the Continuous casting speed significantly higher take-off speed. After one The band 9 'is temperature equalized according to the method according to the invention alternately rolled with a second strip 9 previously separated from the strand 18.
  • the method according to the invention makes it possible - as shown in FIG To waive temperature compensation furnace 17, namely it can in the strand conveying direction
  • First arranged reel furnace 3 take over this function without the inventive Reverse rolling process is disrupted.
  • 2 and 4 of the Reversing roll stand each arranged at least two reel furnaces 3, 3 'and 3 ", 3"'.
  • FIG. 6 shows a special design of a reel furnace 3 arranged first in the strand outlet direction, which has its own tape inlet opening 19 and its own tape outlet opening 20, similar to shown in Fig. 3.
  • the coiler mandrel 21 (there are two coiler mandrels 21 here symmetrical provided to the axis of symmetry) of this reel furnace 3 is by means of an adjusting device in a Winding start position I at the tape inlet opening 19 for the purpose of detecting the beginning of the tape and in an unwinding position II in which a coil 12 wound on the coiler mandrel 21 against a pressure roller 22 which is fixedly arranged or to be pressed on the reel furnace 3 is pressed, movable, the pressure roller 22 in the unwinding direction Tape exit opening 20 is upstream.
  • a reel furnace of this type is in the Austrian Patent application A 647/95 described in more detail
  • the invention is not limited to the exemplary embodiments shown, but rather can be modified in several ways.
  • a facility 1 on the side 4 of the reversing roll stand 1 also two reel furnaces be arranged, which results in the possibility of a band 9 or 9 'after a odd number of passes a temperature compensation or a heat treatment to undergo. If more than two strips are to be rolled alternately, one is provide the appropriate number of reel ovens.
  • the following example of a rolling schedule shows what time for a Band 9 or 9 'for a heat treatment of two alternately rolled strips 9, 9' a device according to FIG. 1 is available.
  • Each strip 9, 9 ' is rolled in seven stitches each with a temperature equalization or a holding time, the or the extends over two key times.

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  • 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)
  • Winding, Rewinding, Material Storage Devices (AREA)

Claims (11)

  1. Procédé pour fabriquer un feuillard (9,9') laminé à chaud selon un laminage réversible, notamment un feuillard d'acier, selon lequel on forme un feuillard soit directement par coulée continue, soit par coulée continue et prélaminage ultérieur, puis on applique un laminage à chaud au feuillard (9,9') dans plusieurs passes de laminage et après chaque passe de laminage, on l'enroule pour former une bobine (12), caractérisé en ce qu'on lamine alternativement deux ou plusieurs feuillards (9,9') et que pendant le laminage de l'un des feuillards (9), dans au moins une passe de laminage l'autre feuillard (9') ou les autres feuillards sont retenus dans une position d'attente en étant enroulés sous la forme d'un collet (12).
  2. Procédé selon la revendication 1, caractérisé en ce que pour le feuillard (9') ou pour les feuillards dans une position d'attente à l'état enroulé sous la forme d'une bobine (12), on exécute un équilibrage thermique, et ce y compris pour l'extrémité du feuillard et les extrémités des feuillards.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que pour le feuillard (9') ou les feuillards dans la position d'attente dans laquelle ils sont enroulés pour former une bobine (12), on exécute un traitement thermique, notamment un chauffage, et ce y compris pour l'extrémité du feuillard ou pour les extrémités des feuillards.
  4. Dispositif pour la mise en oeuvre du procédé selon une ou plusieurs des revendications 1 à 3, comportant une installation de coulée continue (13), éventuellement une cage de prélaminage et une installation aval de laminage de feuillard comportant au moins une cage de laminage réversible (1) et des dispositifs d'enroulement (3), caractérisé par au moins trois dispositifs d'enroulement (3), dont deux au moins deux sont prévus sur le côté arrivée (2) de la cage de laminage réversible (1) et au moins un est prévu sur l'autre côté d'arrivée (4) de la cage de laminage réversible (1).
  5. Dispositif selon la revendication 4, caractérisé en ce que respectivement deux dispositifs d'enroulement (3) sont prévus sur chaque côté d'arrivée (2,4) de la cage de laminage réversible.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que les dispositifs d'enroulement (3) sont équipés d'une gaine d'isolation thermique (6).
  7. Dispositif selon la revendication 6, caractérisé en ce que les dispositifs d'enroulement sont agencés sous la forme d'ouvertures de dévidoir (3) et sont équipés de préférence d'un dispositif de chauffage (11).
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que les dispositifs d'enroulement (3) sont entourés en commun par une enveloppe isolante (6) (figures 2, 3).
  9. Dispositif selon une ou plusieurs des revendications 4 à 8, caractérisé en ce que le dispositif d'enroulement (3) comporte un dispositif (10, 11) qui enroule et déroule l'extrémité du feuillard.
  10. Dispositif selon une ou plusieurs des revendications 4 à 8, caractérisé en ce que le dispositif d'enroulement (3) est équipé d'une zone isolée d'entrée ou de sortie éventuellement chauffable et fermée dans une large mesure.
  11. Dispositif selon une ou plusieurs des revendications 4 à 10, caractérisé en ce qu'au moins un dispositif d'enroulement (3) est équipé d'un dispositif à gaz protecteur.
EP97900893A 1996-01-31 1997-01-28 Procede et dispositif pour le laminage reversible de feuillards metalliques Expired - Lifetime EP0879100B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT17996 1996-01-31
AT0017996A AT405028B (de) 1996-01-31 1996-01-31 Verfahren zum reversierwalzen von band sowie einrichtung zur durchführung des verfahrens
AT179/96 1996-01-31
PCT/AT1997/000014 WO1997027952A1 (fr) 1996-01-31 1997-01-28 Procede et dispositif pour le laminage reversible de feuillards metalliques

Publications (2)

Publication Number Publication Date
EP0879100A1 EP0879100A1 (fr) 1998-11-25
EP0879100B1 true EP0879100B1 (fr) 2001-10-17

Family

ID=3483619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97900893A Expired - Lifetime EP0879100B1 (fr) 1996-01-31 1997-01-28 Procede et dispositif pour le laminage reversible de feuillards metalliques

Country Status (7)

Country Link
US (1) US6134934A (fr)
EP (1) EP0879100B1 (fr)
JP (1) JP2000504276A (fr)
KR (1) KR19990082153A (fr)
AT (1) AT405028B (fr)
DE (1) DE59704961D1 (fr)
WO (1) WO1997027952A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10357622A1 (de) * 2003-12-10 2005-07-07 Sms Demag Ag Verfahren und Anlage zum Walzen von Walzgut
DE102008003222A1 (de) * 2007-09-13 2009-03-19 Sms Demag Ag Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE177747C (fr) *
US2658741A (en) * 1949-04-11 1953-11-10 Westfalenhutte Dortmund Ag Rolling mill for rolling strips or bands and sheets of steel and nonferrous metals
AT177747B (de) * 1949-05-20 1954-02-25 Westfalenhuette Dortmund Ag Walzwerk mit eingeschalteten Wickelöfen
DE1158024B (de) * 1960-03-24 1963-11-28 Verwaltungsgesellschaft Moelle Warmblech-Walzwerk
SU537718A1 (ru) * 1975-06-13 1976-12-05 Устройство дл гор чей прокатки металлической полосы
DE2600784C3 (de) * 1976-01-10 1978-11-09 Hoesch Werke Ag, 4600 Dortmund Verfahren zum Walzen von Warmband und Warmbandwalzwerk zur Durchführung des Verfahrens
CA1095751A (fr) * 1978-10-03 1981-02-17 George W. Tippins Methode et machine de laminage de toles fortes
JPS5659507A (en) * 1979-10-22 1981-05-23 Nippon Steel Corp Cold rolling method for one-way electrical sheet
AT370777B (de) * 1981-08-24 1983-05-10 Voest Alpine Ag Haspelofen
US4522050A (en) * 1983-01-14 1985-06-11 Tippins Machinery Company, Inc. Three stand mini mill method and apparatus
JPS6289502A (ja) * 1985-10-12 1987-04-24 Sumitomo Metal Ind Ltd 薄鋳片連続鋳造による鋼板の製造法
JPS62248503A (ja) * 1986-04-23 1987-10-29 Hitachi Ltd 重ね板圧延方法
JP2502630B2 (ja) * 1987-11-02 1996-05-29 株式会社日立製作所 ステッルミル圧延設備
JPH01127105A (ja) * 1987-11-12 1989-05-19 Sumitomo Heavy Ind Ltd 熱間連続仕上用可逆式圧延設備
DE3743057C1 (de) * 1987-12-18 1988-09-01 Krupp Gmbh Verfahren und Anlage zum Herstellen von warmgewalztem Band aus stranggegossenem Vormaterial
DE3816469A1 (de) * 1988-05-13 1989-11-23 Schloemann Siemag Ag Mehrstranggiessanlage mit nachgeordnetem kontiwalzwerk
JP2602291B2 (ja) * 1988-07-29 1997-04-23 株式会社日立製作所 熱間圧延設備、及び圧延方法
AT407123B (de) * 1993-03-05 2000-12-27 Voest Alpine Ind Anlagen Haspelofen für ein warmband
AT403169B (de) * 1995-04-13 1997-11-25 Voest Alpine Ind Anlagen Haspelofen für ein warmband

Also Published As

Publication number Publication date
KR19990082153A (ko) 1999-11-15
ATA17996A (de) 1998-09-15
WO1997027952A1 (fr) 1997-08-07
US6134934A (en) 2000-10-24
AT405028B (de) 1999-04-26
DE59704961D1 (de) 2001-11-22
EP0879100A1 (fr) 1998-11-25
JP2000504276A (ja) 2000-04-11

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