EP0371281B1 - Apparatus for producing hot-rolled steel strip - Google Patents

Apparatus for producing hot-rolled steel strip Download PDF

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Publication number
EP0371281B1
EP0371281B1 EP89120440A EP89120440A EP0371281B1 EP 0371281 B1 EP0371281 B1 EP 0371281B1 EP 89120440 A EP89120440 A EP 89120440A EP 89120440 A EP89120440 A EP 89120440A EP 0371281 B1 EP0371281 B1 EP 0371281B1
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EP
European Patent Office
Prior art keywords
oven
temperature
equalising
steel strip
temperature equalising
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Expired - Lifetime
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EP89120440A
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German (de)
French (fr)
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EP0371281A1 (en
Inventor
Heinrich Scholz
Rudolf Guse
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SMS Siemag AG
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SMS Schloemann Siemag AG
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Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
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    • 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
    • B21B1/46—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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1213—Accessories for subsequent treating or working cast stock in situ for heating or insulating strands
    • 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
    • B21B2201/00—Special rolling modes
    • B21B2201/18—Vertical rolling pass lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/008—Rollers for roller conveyors

Definitions

  • the invention relates to a system for producing hot-rolled steel strip, consisting of a steel strip casting mold with cooled walls, a strip guide device downstream of the mold for diverting the cast strip into the horizontal, a cross-cutting device, a temperature compensation furnace and a rolling mill.
  • Plants for the production of hot-rolled steel strip are already known, the mold being followed by a press roll set to reduce the thickness of the cast steel strip.
  • the object of the invention is to create a system for producing hot-rolled steel strip, in which the investment and space requirements are lower and in which metallurgical errors are avoided and the thermal energy of the steel strip is better preserved for the subsequent rolling process.
  • an arcuate temperature compensation furnace extends over the belt guide device and a straight temperature compensation furnace horizontally adjoining the arcuate temperature compensation furnace is provided with a transverse dividing device.
  • the cast steel strip with a homogeneous structure and uniform temperature can be tapped in the downstream rolling mill with little investment in a smaller hall area while saving thermal energy.
  • At least one pair of press rolls can be arranged between the temperature compensation furnace and the mold, by means of which the cast steel strip is reduced to 6 - 25 mm in thickness.
  • the temperature compensation furnace is advantageously designed as a roller hearth furnace.
  • the guide, drive, bending and straightening rollers located in the furnace can be provided with coolant channels in their interior. It is essential that the bearings, drives and adjusting mechanisms of the rollers are arranged outside the temperature compensation furnace.
  • the first arcuate part of the furnace with its heating and conveying installation is designed as an exchangeable part.
  • a rotating shear is arranged in the temperature compensation furnace, the knife shafts of which can be inserted into the interior of the furnace for cutting through side openings.
  • the rotating shear consists of a movable bearing frame for the knife shafts arranged on the side of the temperature compensation furnace, which is opposite the drive on the other side of the temperature compensation furnace and a stationary bearing frame for counter bearing journals, with sliding doors being arranged in the temperature compensation furnace between the bearing points. Between Couplings are arranged on the counterbearing journals of the knife shafts and the output journals of the scissor drive.
  • the temperature compensation furnace is equipped with one or more lowerable roller table rollers in the entry area of the knife shafts.
  • a flame cutting device can be arranged on each side of the temperature compensation furnace and can be inserted into the furnace for cutting.
  • a carriage which can be moved transversely to the furnace is arranged on each side of the temperature compensation furnace, each of which is provided with a guide arm which can be pivoted on the vertical axis for a cutting torch. Sliding doors are located on the sides of the temperature compensation oven in the swivel range of the guide arms.
  • the flame cutting devices can be guided on a track with a moving component in order to achieve a straight cutting line running perpendicular to the edge of the steel strip.
  • the plant shown in Fig. 1 for the production of steel strip consists of the essential parts steel strip mold 1, pair of rollers or rollers 2, an arc-shaped temperature compensation furnace 3 with guide rollers 10 and drive rollers 11 and a straight horizontal temperature compensation furnace 4 with a cross-section device 7, a rolling mill 5, a cooling section 6 and a winding device 8.
  • the steel strip 9 cast in the steel strip casting mold 1 first passes through the pair of rollers or rollers 2, the thickness being reduced, and then passes directly into an arc-shaped temperature compensation furnace 3. Inside the temperature compensation furnace 3, the steel strip 9 is bent and guide rollers 10 and straightening and driving rollers 11 out.
  • the horizontal temperature compensation furnace 4 directly adjoins the arc-shaped temperature compensation furnace 3. This is provided with an oven roller table 12.
  • the bearings 13 of the guide rollers 10, drive rollers 11 and roller table rollers 12 are arranged outside the oven chambers 14, 15.
  • the drives 16 and adjusting devices 17 of the drive are also located roll 11 outside the furnace chamber 14.
  • the arc-shaped temperature compensation furnace 3 can be extended with the guide rollers 10, drive rollers 11 and heating fittings by suitable conveying means and can be replaced by a change furnace.
  • the horizontal temperature compensation furnace 4 is assigned a rotating cross-section shear, shown in FIGS. 4 and 5, the knife shafts 18, 19 of which are mounted in two stands 20, 21 of a bearing frame 23 which can be displaced on a track 22 transversely to the furnace 4.
  • a pressure medium cylinder 24 is arranged, the piston rod 25 of which can be connected to the storage rack 23 via a head 27 guided on a roller 26 and a hook 28.
  • the knife shafts 18, 19 are located within the furnace chamber 15 only at the time of a cut. After the cut has been made, the bearing frame 23 is removed from the furnace 4 by the hydraulic cylinder 24, as a result of which the knife shafts 18, 19 are pulled laterally out of the furnace 4. Then lateral openings of the temperature compensation furnace are closed by slide 41 and a roller 42 of the furnace roller table 12 lowered to the cut is raised again.
  • the temperature compensation furnace 4 can alternatively be provided with flame cutting devices 49, 50 for dividing the cast steel strip 9.
  • two carriages 43, 44 are arranged opposite each other on both sides of the temperature compensation furnace 4 and can be moved across the furnace.
  • a guide arm 45, 46 is mounted on each carriage 43, 44 on a vertical axis, at the end of which a flame cutting device 49, 50 can be inserted into the furnace chamber 15 through a lateral opening 47, 48.
  • the flame cutting devices 49, 50 are moved to the edges of the steel strip 9. After the beginning of the cutting, the flame cutting devices 49, 50 are guided on a path 51, 52 formed from the carriage movement and a pivoting movement of the guide arm 45, 46, as a result of which a straight cutting line 53 running perpendicular to the steel strip edge is achieved within the furnace chamber 15 during the conveying movement of the steel strip 9 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

An apparatus for producing hot-rolled steel strip consists of a steel-strip-casting mould having cooled walls, a strip guide device, arranged downstream of the mould, for diverting the cast strip into the horizontal line of a transverse-dividing device, a temperature- compensation furnace and a rolling mill. <??>To reduce the capital outlay and the space requirement, to avoid metallurgical defects and to save energy, a curved temperature- compensation furnace (3) extends over the strip guide device (10), in which arrangement a straight temperature-compensation furnace (4) horizontally adjoining the curved temperature-compensation furnace (3) is provided with a transverse-dividing device (7). <IMAGE>

Description

Die Erfindung betrifft eine Anlage zur Herstellung von warmgewalztem Stahlband, bestehend aus einer Stahlbandgießkokille mit gekühlten Wänden, einer der Kokille nachgeordneten Bandführungseinrichtung zur Umleitung des gegossenen Bandes in die Horizontale, einer Querteileinrichtung, einem Temperaturausgleichofen und einem Walzwerk.The invention relates to a system for producing hot-rolled steel strip, consisting of a steel strip casting mold with cooled walls, a strip guide device downstream of the mold for diverting the cast strip into the horizontal, a cross-cutting device, a temperature compensation furnace and a rolling mill.

Bei einer derartigen, durch den Prospekt W4 + 9/319 der Schloemann-Siemag AG bekannt gewordenen Anlage ist der Gießbandführungseinrichtung eine Schere, ein horizontaler Ausgleichofen und eine Warmwalzstraße nachgeordnet.In such a system, which has become known from the brochure W4 + 9/319 of Schloemann-Siemag AG, scissors, a horizontal compensating furnace and a hot rolling mill are arranged after the casting belt guiding device.

Es sind bereits Anlagen zur Herstellung von warmgewalztem Stahlband bekannt, wobei der Kokille ein Presswalzensatz zur Verringerung der Dicke des gegossenen Stahlbandes nachgeordnet ist.Plants for the production of hot-rolled steel strip are already known, the mold being followed by a press roll set to reduce the thickness of the cast steel strip.

Aufgabe der Erfindung ist die Schaffung einer Anlage zur Herstellung von warmgewalztem Stahlband, bei der Investitionsaufwand und Raumbedarf geringer sind und bei der metallurgische Fehler vermieden werden und die Wärmeenergie des Stahlbandes besser für den nachfolgenden Walzprozess erhalten bleibt.The object of the invention is to create a system for producing hot-rolled steel strip, in which the investment and space requirements are lower and in which metallurgical errors are avoided and the thermal energy of the steel strip is better preserved for the subsequent rolling process.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß ein bogenförmiger Temperaturausgleichofen sich über die Bandführungseinrichtung erstreckt und ein an den bogenförmigen Temperaturausgleichofen horizontal anschließender gerader Temperaturausgleichofen mit einer Querteileinrichtung versehen ist.This object is achieved according to the invention in that an arcuate temperature compensation furnace extends over the belt guide device and a straight temperature compensation furnace horizontally adjoining the arcuate temperature compensation furnace is provided with a transverse dividing device.

Auf diese Weise kann mit geringem Investitionsaufwand auf kleinerer Hallenfläche unter Einsparung von Wärmeenergie das gegossene Stahlband mit homogenem Gefüge und gleichmäßiger Temperatur zum Anstich im nachgeordneten Walzwerk gebracht werden.In this way, the cast steel strip with a homogeneous structure and uniform temperature can be tapped in the downstream rolling mill with little investment in a smaller hall area while saving thermal energy.

Dabei kann zwischen Temperaturausgleichofen und Kokille mindestens ein Presswalzenpaar angeordnet sein, durch das das gegossene Stahlband auf 6 - 25 mm dickenreduziert wird.At least one pair of press rolls can be arranged between the temperature compensation furnace and the mold, by means of which the cast steel strip is reduced to 6 - 25 mm in thickness.

Der Temperaturausgleichofen ist vorteilhaft als Rollenherdofen ausgebildet. Die im Ofen befindlichen Führungs-, Treib-, Biege- und Richtrollen können in ihrem Inneren mit Kühlmittelkanälen versehen sein. Wesentlich ist, daß die Lager, Antriebe und Verstellgetriebe der Rollen außerhalb des Temperaturausgleichofens angeordnet sind.The temperature compensation furnace is advantageously designed as a roller hearth furnace. The guide, drive, bending and straightening rollers located in the furnace can be provided with coolant channels in their interior. It is essential that the bearings, drives and adjusting mechanisms of the rollers are arranged outside the temperature compensation furnace.

Gemäß einem weiteren Merkmal der Erfindung ist der erste bogenförmige Teil des Ofens mit seiner Heiz- und Förderinstallation als Wechselteil ausgebildet.According to a further feature of the invention, the first arcuate part of the furnace with its heating and conveying installation is designed as an exchangeable part.

Zur Unterteilung des gegossenen Stahlbandes ist im Temperaturausgleichofen eine rotierende Schere angeordnet, deren Messerwellen zum Schnitt durch seitliche Öffnungen in das Ofeninnere einfahrbar sind.To divide the cast steel strip, a rotating shear is arranged in the temperature compensation furnace, the knife shafts of which can be inserted into the interior of the furnace for cutting through side openings.

Die rotierende Schere besteht aus einem auf der Seite des Temperaturausgleichofens angeordneten, verfahrbaren Lagergestell für die Messerwellen welchem gegenüberliegend auf der anderen Seite des Temperaturausgleichofens der Antrieb sowie ein ortsfestes Lagergestell für Gegenlagerzapfen angeordnet sind wobei im Temperaturausgleichofen zwischen den Lagerstellen Schiebetüren angeordnet sind. Zwischen den Gegenlagerzapfen der Messerwellen und Abtriebszapfen des Scherengetriebes sind Kupplungen angeordnet.The rotating shear consists of a movable bearing frame for the knife shafts arranged on the side of the temperature compensation furnace, which is opposite the drive on the other side of the temperature compensation furnace and a stationary bearing frame for counter bearing journals, with sliding doors being arranged in the temperature compensation furnace between the bearing points. Between Couplings are arranged on the counterbearing journals of the knife shafts and the output journals of the scissor drive.

Der Temperaturausgleichofen ist im Einfahrbereich der Messerwellen mit einer oder mehreren absenkbaren Rollgangsrollen versehen.The temperature compensation furnace is equipped with one or more lowerable roller table rollers in the entry area of the knife shafts.

Alternativ können auf jeder Seite des Temperaturausgleichofens eine Brennschneideinrichtung angeordnet sein, die zum Schnitt in den Ofen einfahrbar ist. Dazu sind auf jeder Seite des Temperaturausgleichofens je ein quer zum Ofen verfahrbarer Wagen angeordnet, die mit je einem auf vertikaler Achse schwenkbaren Führungsarm für je einen Schneidbrenner versehen sind. Im Schwenkbereich der Führungsarme befinden sich an den Seiten des Temperaturausgleichofens Schiebetüren.Alternatively, a flame cutting device can be arranged on each side of the temperature compensation furnace and can be inserted into the furnace for cutting. For this purpose, a carriage which can be moved transversely to the furnace is arranged on each side of the temperature compensation furnace, each of which is provided with a guide arm which can be pivoted on the vertical axis for a cutting torch. Sliding doors are located on the sides of the temperature compensation oven in the swivel range of the guide arms.

Die Brennschneideinrichtungen können bei durch den Temperaturausgleichofen geförderten Stahlband zur Erzielung einer geraden, senkrecht zur Stahlbandkante verlaufenden Schneidlinie auf einer Bahn mit mitlaufender Komponente geführt werden.With a steel strip conveyed through the temperature compensation furnace, the flame cutting devices can be guided on a track with a moving component in order to achieve a straight cutting line running perpendicular to the edge of the steel strip.

In der Zeichnung sind Ausführungsbeispiele mit Merkmalen der Erfindung dargestellt. Es zeigen

  • Fig. 1 schematisch eine Anlage zur Herstellung von Stahlband,
  • Fig. 2 einen Querschnitt des Temperaturausgleichofens gemäß der Linie II-II in Fig. 1,
  • Fig. 3 einen Querschnitt des Temperaturausgleichofens gemäß der Linie III-III in Fig. 1,
  • Fig. 4 einen Querschnitt des Temperaturausgleichofens gemäß der Linie IV-IV mit einer Querteilschere,
  • Fig. 5 einen Schnitt durch die Schermesserwellen,
  • Fig. 6 einen Querschnitt des Temperaturausgleichofens im Bereich der Linie IV-IV mit Brennschneideinrichtungen, und
  • Fig. 7 einen Horizontalausschnitt des Temperaturausgleichofens mit Brennschneideinrichtungen.
In the drawing, exemplary embodiments are shown with features of the invention. Show it
  • 1 schematically shows a plant for the production of steel strip,
  • 2 shows a cross section of the temperature compensation furnace along the line II-II in FIG. 1,
  • 3 shows a cross section of the temperature compensation furnace along the line III-III in FIG. 1,
  • 4 shows a cross section of the temperature compensation furnace along the line IV-IV with a cross-cut shear,
  • 5 shows a section through the shear knife shafts,
  • Fig. 6 shows a cross section of the temperature compensation furnace in the area of line IV-IV with flame cutting devices, and
  • Fig. 7 shows a horizontal section of the temperature compensation furnace with flame cutting devices.

Die in Fig. 1 dargestellte Anlage zur Herstellung von Stahlband besteht aus den wesentlichen Teilen Stahlbandkokille 1, Walzen- oder Rollenpaar 2, einen bogenförmigen Temperaturausgleichofen 3 mit Führungsrollen 10 und Treibrollen 11 und einen geraden horizontalen Temperaturausgleichofen 4 mit einer Querteileinrichtung 7, einem Walzwerk 5, einer Kühlstrecke 6 und einer Aufwickelvorrichtung 8.The plant shown in Fig. 1 for the production of steel strip consists of the essential parts steel strip mold 1, pair of rollers or rollers 2, an arc-shaped temperature compensation furnace 3 with guide rollers 10 and drive rollers 11 and a straight horizontal temperature compensation furnace 4 with a cross-section device 7, a rolling mill 5, a cooling section 6 and a winding device 8.

Das in der Stahlbandgießkokille 1 gegossene Stahlband 9 durchläuft zunächst das Rollen- oder Walzenpaar 2 wobei die Dicke verringert wird und gelangt danach direkt in einen bogenförmigen Temperaturausgleichofen 3. Innerhalb des Temperaturausgleichofens 3 wird das Stahlband 9 durch Biege- und Führungsrollen 10 und Richt- und Treibrollen 11 geführt. An den bogenförmigen Temperaturausgleichofen 3 schließt unmittelbar der horizontale Temperaturausgleichofen 4 an. Dieser ist mit einem Ofenrollgang 12 versehen. Die Lager 13 der Führungsrollen 10, Treibrollen 11 und Rollgangsrollen 12 sind außerhalb der Ofenkammern 14, 15 angeordnet. Ebenso befinden sich die Antriebe 16 und Verstellvorrichtungen 17 der Treib rollen 11 außerhalb der Ofenkammer 14. Der bogenförmige Temperaturausgleichofen 3 ist mit den Führungsrollen 10, Treibrollen 11 und Heizarmaturen durch geeignete Fördermittel ausfahrbar und durch einen Wechselofen ersetzbar.The steel strip 9 cast in the steel strip casting mold 1 first passes through the pair of rollers or rollers 2, the thickness being reduced, and then passes directly into an arc-shaped temperature compensation furnace 3. Inside the temperature compensation furnace 3, the steel strip 9 is bent and guide rollers 10 and straightening and driving rollers 11 out. The horizontal temperature compensation furnace 4 directly adjoins the arc-shaped temperature compensation furnace 3. This is provided with an oven roller table 12. The bearings 13 of the guide rollers 10, drive rollers 11 and roller table rollers 12 are arranged outside the oven chambers 14, 15. The drives 16 and adjusting devices 17 of the drive are also located roll 11 outside the furnace chamber 14. The arc-shaped temperature compensation furnace 3 can be extended with the guide rollers 10, drive rollers 11 and heating fittings by suitable conveying means and can be replaced by a change furnace.

Dem horizontalen Temperaturausgleichofen 4 ist eine in den Figuren 4 und 5 dargestellte rotierende Querteilschere zugeordnet, deren Messerwellen 18, 19 in zwei Ständern 20, 21 eines quer zum Ofen 4 auf einer Bahn 22 verschiebbaren Lagergestells 23 gelagert sind. Zur Verschiebung des Lagergestells 23 ist ein Druckmittelzylinder 24 angeordnet, dessen Kolbenstange 25 über einen auf einer Rolle 26 geführten Kopf 27 und einen Haken 28 mit dem Lagergestell 23 verbindbar ist.The horizontal temperature compensation furnace 4 is assigned a rotating cross-section shear, shown in FIGS. 4 and 5, the knife shafts 18, 19 of which are mounted in two stands 20, 21 of a bearing frame 23 which can be displaced on a track 22 transversely to the furnace 4. To move the storage rack 23, a pressure medium cylinder 24 is arranged, the piston rod 25 of which can be connected to the storage rack 23 via a head 27 guided on a roller 26 and a hook 28.

Auf der gegenüberliegenden Seite des Temperaturausgleichofens 4 befindet sich ein Lagerständer 29 für die Lagerzapfen 30, 31 der Messerwellen 18, 19. Aus dem Lagerständer 29 ragen Kupplungszapfen 32, 33 der Messerwellen hervor, die in je einer Kupplungshülse 34, 35 aufgenommen sind. Die Kupplungshülsen 34, 35 sind auf Abtriebszapfen 36, 37 eines Kammwalzengetriebes 38 angeordnet, das von einem Motor 39 über ein Untersetzungsgetriebe 40 angetrieben ist.On the opposite side of the temperature compensation furnace 4 there is a bearing stand 29 for the bearing journals 30, 31 of the knife shafts 18, 19. Coupling journals 32, 33 of the knife shafts protrude from the bearing stand 29, which are each received in a coupling sleeve 34, 35. The coupling sleeves 34, 35 are arranged on output journals 36, 37 of a comb roller gear 38, which is driven by a motor 39 via a reduction gear 40.

Die Messerwellen 18, 19 befinden sich nur zum Zeitpunkt eines Schnitts innerhalb der Ofenkammer 15. Nach Durchführung des Schnittes wird das Lagergestell 23 durch den Hydraulikzylinder 24 vom Ofen 4 entfernt, wodurch die Messerwellen 18, 19 seitlich aus dem Ofen 4 herausgezogen werden. Danach werden seitliche Öffnungen des Temperaturausgleichofens durch Schieber 41 verschlossen und eine zum Schnitt abgesenkte Rolle 42 des Ofenrollgangs 12 wieder angehoben.The knife shafts 18, 19 are located within the furnace chamber 15 only at the time of a cut. After the cut has been made, the bearing frame 23 is removed from the furnace 4 by the hydraulic cylinder 24, as a result of which the knife shafts 18, 19 are pulled laterally out of the furnace 4. Then lateral openings of the temperature compensation furnace are closed by slide 41 and a roller 42 of the furnace roller table 12 lowered to the cut is raised again.

Der Temperaturausgleichofen 4 kann zur Unterteilung des gegossenen Stahlbandes 9 alternativ mit Brennschneideinrichtungen 49, 50 versehen werden. In den Figuren 6 und 7 sind beidseits des Temperaturausgleichofens 4 gegenüberliegend zwei Wagen 43, 44 quer zum Ofen verfahrbar angeordnet. Auf jedem Wagen 43, 44 ist ein Führungsarm 45, 46 auf vertikaler Achse gelagert an dessen durch eine seitliche Öffnung 47, 48 in die Ofenkammer 15 einfahrbaren Ende eine Brennschneideinrichtung 49, 50 angeordnet ist.The temperature compensation furnace 4 can alternatively be provided with flame cutting devices 49, 50 for dividing the cast steel strip 9. In FIGS. 6 and 7, two carriages 43, 44 are arranged opposite each other on both sides of the temperature compensation furnace 4 and can be moved across the furnace. A guide arm 45, 46 is mounted on each carriage 43, 44 on a vertical axis, at the end of which a flame cutting device 49, 50 can be inserted into the furnace chamber 15 through a lateral opening 47, 48.

Zum Trennschnitt werden die Brennschneideinrichtungen 49, 50 zu den Kanten des Stahlbandes 9 bewegt. Nach dem Schnittbeginn werden die Brennschneideinrichtungen 49, 50 auf einer aus der Wagenbewegung und einer Schwenkbewegung des Führungsarmes 45, 46 gebildeten Bahn 51, 52 geführt, wodurch während der Förderbewegung des Stahlbandes 9 innerhalb der Ofenkammer 15 eine senkrecht zur Stahlbandkante verlaufende gerade Schnittlinie 53 erzielt wird.For the separating cut, the flame cutting devices 49, 50 are moved to the edges of the steel strip 9. After the beginning of the cutting, the flame cutting devices 49, 50 are guided on a path 51, 52 formed from the carriage movement and a pivoting movement of the guide arm 45, 46, as a result of which a straight cutting line 53 running perpendicular to the steel strip edge is achieved within the furnace chamber 15 during the conveying movement of the steel strip 9 .

Claims (11)

1. Apparatus for producing a hot-rolled steel strip (9), consisting of a steel strip chill mould (1) with cooled walls, a strip guidance equipment (10) arranged after the chill mould (1) and for deflection of the cast strip (9) into the horizontal line of a transverse severing equipment (7), a temperating equalising oven (3, 4) and a rolling mill (5),
characterised thereby
curved temperature equalising oven (3) extends over the strip guidance equipment (10) and a straight temperature equalising oven (4) with a transverse severing equipment horizontally adjoins the curved temperature equalising oven (3).
2. Apparatus according to claim 1,
characterised thereby
that at least one press roll pair (2) is arranged between temperature equalising oven (3) and chill mould (1).
3. Apparatus according to claim 1,
characterised thereby
that rolls (10, 11) disposed in the temperature equalising oven (3) are provided with an internal cooling.
4. Apparatus according to claim 1 and 3,
characterised thereby
that adjusting drive (17), rotary drive (16) and bearings (13) of the rolls (10, 11) are arranged externally of the temperature equalising oven (3).
5. Apparatus according to claim 1,
characterised thereby
that the curved temperature equalising oven (3) is exchangeable with the strip guidance equipment and the heating fittings.
6. Apparatus according to claim 1,
characterised thereby
that the roll path rolls (12) of the temperature equalising oven (4) are mounted externally of the oven chamber (15) and provided with an internal cooling.
7. Apparatus according to claim 1,
characterised thereby
that a rotary cutter, the knife shafts (18, 19) of which are movable through lateral openings into the oven chamber (15) for cutting, is arranged in the temperature equalising oven (4) as transverse equipment (7).
8. Rotary cutter according to claim 7,
characterised thereby
that the cutter knife shafts (18, 19) are mounted on a frame (20, 21, 23) movable transversely to the temperature equalising oven (4) and a bearing pedestal (29) and a drive unit (38, 39, 40) are arranged on the opposite side of the oven to be stationary.
9. Apparatus according to claim 1,
characterised thereby
a respective flame cutting equipment (49, 50), which is movable through lateral openings (47, 48) into the oven chamber (15) for cutting, is arranged on each side of a temperature equalising oven (4).
10. Apparatus according to claims 1 and 9,
characterised thereby
that arranged on each side of the temperature equalising oven (4) is a carriage (43, 44), which is movable transversely to the oven and on which is mounted a guide arm (45, 46) with a vertical pivot axis, a flame cutting equipment (49, 50) being arranged at the end of the arm-movable into the temperature equalising oven (4).
11. Method for the operation of flame cutting equipments according to claims 9 and 10,
characterised thereby
that when steel strip (9) is conveyed through the temperature equalising oven (4) the flame cutting equipments (49, 50) are guided on a path (51, 52) with travelling components in order to achieve a straight cutting line running perpendicularly to the steel strip edge.
EP89120440A 1988-11-26 1989-11-04 Apparatus for producing hot-rolled steel strip Expired - Lifetime EP0371281B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120440T ATE78726T1 (en) 1988-11-26 1989-11-04 PLANT FOR THE MANUFACTURE OF HOT ROLLED STEEL STRIP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3839954 1988-11-26
DE3839954A DE3839954A1 (en) 1988-11-26 1988-11-26 PLANT FOR PRODUCING HOT-ROLLED STEEL STRIP

Publications (2)

Publication Number Publication Date
EP0371281A1 EP0371281A1 (en) 1990-06-06
EP0371281B1 true EP0371281B1 (en) 1992-07-29

Family

ID=6367945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120440A Expired - Lifetime EP0371281B1 (en) 1988-11-26 1989-11-04 Apparatus for producing hot-rolled steel strip

Country Status (6)

Country Link
US (1) US5065811A (en)
EP (1) EP0371281B1 (en)
JP (1) JPH02197358A (en)
AT (1) ATE78726T1 (en)
DE (2) DE3839954A1 (en)
ES (1) ES2034561T3 (en)

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US10610927B2 (en) 2014-11-28 2020-04-07 Sms Group Gmbh Continuous casting installation for thin slabs

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BR9505866A (en) * 1994-03-25 1996-02-21 Nippon Steel Corp Process for production of thin cast strip
JP3276151B2 (en) * 1994-04-04 2002-04-22 新日本製鐵株式会社 Twin roll continuous casting method
WO1996001710A1 (en) * 1994-07-08 1996-01-25 Ipsco Inc. Method of casting and rolling steel using twin-roll caster
AU2783795A (en) * 1994-07-08 1996-02-09 Ipsco Inc. Twin-roll caster and rolling mill for use therewith
DE19529046A1 (en) * 1995-07-31 1997-02-06 Mannesmann Ag Method and device for operating a continuous caster
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DE60139179D1 (en) * 2000-03-01 2009-08-20 Jfe Steel Corp DEVICE AND METHOD FOR COOLING HOT-ROLLED STEEL STRIP AND METHOD FOR PRODUCING THEREOF
FR2833871B1 (en) * 2001-12-20 2004-07-09 Usinor METHOD AND PLANT FOR MANUFACTURING METAL STRIPS FROM STRIPS CAST DIRECTLY FROM LIQUID METAL
DE102005010243A1 (en) * 2005-03-05 2006-09-07 Sms Demag Ag Method and plant for producing a lightweight steel with a high manganese content
US7618028B2 (en) * 2005-09-08 2009-11-17 Advanced Tooling Systems, Inc. Method and fixture for handling and processing die components
EP2263816A1 (en) * 2009-06-03 2010-12-22 Concast Ag Method and apparatus for guiding and straightening a strand in a continuous acsting machine for round billets of large cross-section
IT1400002B1 (en) † 2010-05-10 2013-05-09 Danieli Off Mecc PROCEDURE AND PLANT FOR THE PRODUCTION OF FLAT LAMINATED PRODUCTS
DE102013224557A1 (en) * 2013-11-29 2015-06-03 Sms Siemag Ag Continuous casting plant and method for continuous casting of a metal strand
DE102015202608A1 (en) * 2015-02-13 2016-08-18 Sms Group Gmbh casting plant
CN106583674B (en) * 2016-11-15 2019-07-16 绍兴创举汽车同步器齿环有限公司 A kind of continuous casting excision forming equipment of copper profile
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US10610927B2 (en) 2014-11-28 2020-04-07 Sms Group Gmbh Continuous casting installation for thin slabs

Also Published As

Publication number Publication date
EP0371281A1 (en) 1990-06-06
JPH02197358A (en) 1990-08-03
ES2034561T3 (en) 1993-04-01
ATE78726T1 (en) 1992-08-15
US5065811A (en) 1991-11-19
DE3839954A1 (en) 1990-05-31
DE58901951D1 (en) 1992-09-03

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