EP0504655A1 - Method and plant for rolling wire or rounds into coils from carbon and/or high-grade steel - Google Patents

Method and plant for rolling wire or rounds into coils from carbon and/or high-grade steel Download PDF

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Publication number
EP0504655A1
EP0504655A1 EP92103643A EP92103643A EP0504655A1 EP 0504655 A1 EP0504655 A1 EP 0504655A1 EP 92103643 A EP92103643 A EP 92103643A EP 92103643 A EP92103643 A EP 92103643A EP 0504655 A1 EP0504655 A1 EP 0504655A1
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EP
European Patent Office
Prior art keywords
wire
production line
round steel
transport
dimensions
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Granted
Application number
EP92103643A
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German (de)
French (fr)
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EP0504655B1 (en
Inventor
Johann Grotepass
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SMS Siemag AG
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SMS Schloemann Siemag AG
Schloemann Siemag AG
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Classifications

    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B21C47/262—Treatment of a wire, while in the form of overlapping non-concentric rings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
    • 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
    • B21B2015/0057—Coiling the rolled 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars

Definitions

  • the invention relates to a method and a plant for the production of rolled wire or round steel dimensions in coils made of carbon steels or stainless steels, billets being used as the starting material and these being taken from a billet furnace at the rolling temperature and being successively worked in a multi-stand rolling mill to form wire or Round steel, hexagon or square dimensions are rolled out and subsequently wound up into coils in a sequence of post-treatment steps, cooled and transferred to a coil transport, these post-treatment steps taking place in different stations and in particular with different temperature gradients in accordance with material quality and / or predetermined end product quality .
  • the method and the system are preferably suitable for the production of wire products with dimensions of 5 - 20 mm diameter and for round steel dimensions of 10 - 60 mm.
  • the invention has for its object to provide a method and a corresponding plant for the production of rolled wire or round steel dimensions in coils, through which the costs incurred in the thermal post-treatment of the different rolled products are drastically reduced, thereby economical production even of very different To enable steel grades with strongly changing aftertreatment and with comparatively small individual batches
  • the problem is solved in terms of process engineering in that a wire production line is used for the rolling of the wire dimensions and one of these secondary steel production lines is used for the rolling of the round steel dimensions, and that for each of the different post-treatment steps of the rolled products of both production lines, a post-treatment system with different post-treatment stations assigned to them is used , wherein each rolled product of one or the other production line is fed to one or more of these different post-treatment stations in accordance with its specified specific post-treatment using transport means.
  • the system shown in the figure comprises a billet furnace (10) with a billet feed line (9). This ends in a cooling bed (8).
  • a wire production line (1) and a round steel production line (2) branch off from the billet feed line (9).
  • a multi-stand wire mill or wire finishing train (11) is arranged in the wire production line (1) and an optionally multi-stand round steel mill (12) is arranged in the round steel production line (2).
  • the wire mill (11) is, for. B. assigned a Stelmor line (4) with or without cooling air device.
  • the round steel production line (2) or the round steel mill (12) is followed by a coil forming device (3) for round steel dimensions as well as for wire dimensions that are to be slowly cooled on a coil transport (5).
  • the coil forming device (3) and the Stelmor line (4) are functionally linked to one another by a transverse transport device (13) on their inlet side and occasionally also by a transfer device for wire and round steel coils (7) at their
  • transverse transport or coil transfer devices (7, 13) have the advantage that for the different types of material or cooling or for the corresponding stations for rapid or slow cooling, only one coil forming device is available for round steel dimensions or for wire dimensions got to.
  • the coil forming station (3) for round steel dimensions can also be used for wire dimensions that need to be cooled slowly, and vice versa.
  • round steel and wire that can be cooled quickly can be post-treated in a coil forming device equipped with a Garrett reel and water bath.
  • the system only requires a coil transport for wire or round steel for slow cooling z. B. in a Garrett reel with subsequent transport through an isolation chamber or with slip-on insulation hoods to one or more common parking spaces.
  • the system for the production of rolled wire or round steel dimensions in coils can be expanded with simple means beyond the basic equipment shown according to partial illustration (A), e.g. B. by later expansion of a Stelmor line (4) for delayed cooling with an isolation chamber or for slow cooling with insulating hoods, which can also be heated.
  • a Stelmor line (4) for delayed cooling with an isolation chamber or for slow cooling with insulating hoods, which can also be heated.
  • a Garrett reel for example with a water spray device, and for shock-like quenching a water bath or a water Garrett reel be provided.
  • each of these different post-treatment devices is advantageously only available once for both production lines and can be controlled or reached for each different rolled product by means of intermediate transport (7, 13). In this way, with the most economical use of production and post-treatment agents, the plant achieves a high degree of flexibility for a particularly economical production of different rolling stock dimensions or steel qualities.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Method and plant, in particular for the economical production of wire and/or rounds, especially in small lots, comprising the following method steps and plant parts or stations: a) a wire production line (1) having a multi-stand wire rolling train (11) and a rounds production line (2) with, for example, a multi-stand, round steel rolling train (12), which trains branch off from a common billet feed line (9) having a billet furnace (10) and a cooling bed (8) and are arranged next to one another, b) an aftertreatment plant arranged after the said production lines (1, 2) and comprising: - a coil-forming station (3) assigned to production line (1) or (2) and intended both for rounds and wire, - a transfer device (13) for transferring wire coils to the coil transport (5) assigned to the round-steel production line (2), - a coil-forming device (6) arranged at the end of the Stelmor line (4) and intended for wire, having an adjoining transfer device (7) for wire or round steel coils, - a coil transport and cooling device assigned to production line (1) or (2). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren sowie eine Anlage zur Herstellung von gewalzten Draht- oder Rundstahlabmessungen in Coils aus C-Stählen oder Edelstählen, wobei als Vormaterial Knüppel verwendet und diese mit Walztemperatur einem Knüppelofen entnommen und in aufeinanderfolgenden Arbeitsschritten in einer mehrgerüstigen Walzstraße zu Draht- bzw. Rundstahl-, Sechskant- oder Quadrat- Abmessungen ausgewalzt und diese anschließend in einer Folge von Nachbehandlungsschritten zu Coils aufgewickelt, gekühlt und einem Bundtransport übergeben werden, wobei diese Nachbehandlungsschritte nach Maßgabe von Materialqualität und/oder vorgegebener Endproduktqualität in unterschiedlichen Stationen und insbesondere mit unterschiedlichen Temperaturgradienten erfolgen.The invention relates to a method and a plant for the production of rolled wire or round steel dimensions in coils made of carbon steels or stainless steels, billets being used as the starting material and these being taken from a billet furnace at the rolling temperature and being successively worked in a multi-stand rolling mill to form wire or Round steel, hexagon or square dimensions are rolled out and subsequently wound up into coils in a sequence of post-treatment steps, cooled and transferred to a coil transport, these post-treatment steps taking place in different stations and in particular with different temperature gradients in accordance with material quality and / or predetermined end product quality .

Es handelt sich hierbei um ein Verfahren und eine Anlage, welche insbesondere für die Erzeugung von unterschiedlichen Stahlqualitäten, vorzugsweise von legierten Güten, beispielsweise Edelstählen, zur Anwendung kommen, wobei diese je nach Anforderung langsam, mit Verzögerung oder schnell abgekühlt werden müssen. Das Verfahren und die Anlage eignen sich vorzugsweise zur Produktion von Drahtprodukten mit Abmessungen von 5 - 20 mm Durchmesser sowie für Rundstahlabmessungen von 10 - 60 mm.This is a method and a system which is used in particular for the production of different steel qualities, preferably of alloyed grades, such as stainless steels, are used, which must be cooled slowly, with delay or quickly, depending on the requirements. The method and the system are preferably suitable for the production of wire products with dimensions of 5 - 20 mm diameter and for round steel dimensions of 10 - 60 mm.

Beim Stand der Technik sind für eine Drahtproduktionslinie folgende Verfahren zur Nachbehandlung bekannt:

  • a) Abkühlen mit Luft, z. B. Stelmorverfahren,
  • b) verzögertes Abkühlen ohne Luft, z. B. Stelmorverfahren mit Isolationskammern,
  • c) langsames Abkühlen z. B. in Isolierhauben bzw. Isolierkammern (auch beheizbar),
  • d) schnelles Abkühlen, z. B. in einem Wasserbad.
In the prior art, the following post-treatment methods are known for a wire production line:
  • a) cooling with air, e.g. B. Stelmor procedure,
  • b) delayed cooling without air, e.g. B. Stelmorverfahren with isolation chambers,
  • c) slow cooling z. B. in insulating hoods or insulating chambers (also heatable),
  • d) rapid cooling, e.g. B. in a water bath.

Rundstahlproduktionslinien in Coils umfassen üblicherweise folgende Nachbehandlungs-Verfahren:

  • e) schnelles Abkühlen, z. B. in einem Wasser-Garrett-Haspel,
  • f) verzögertes Abkühlen, z. B. in einem Garrett-Haspel mit anschließendem Transport durch eine Isolierkammer,
  • g) langsames Abkühlen, z. B. in einem Garrett-Haspel mit anschließendem Transport durch eine Isolierkammer (auch beheizbar) oder mit überstülpten Isolierhauben zu Abstellplätzen.
Round steel production lines in coils usually include the following post-treatment processes:
  • e) rapid cooling, e.g. B. in a water Garrett reel,
  • f) delayed cooling, e.g. B. in a Garrett reel with subsequent transport through an isolation chamber,
  • g) slow cooling, e.g. B. in a Garrett reel with subsequent transport through an insulation chamber (also heatable) or with slipped insulation hoods to parking spaces.

Beim Stand der Technik war es bisher üblich, jeder Produktionslinie für Draht oder für Rundstahl eine eigene Nachbehandlungsanlage nachzuordnen. Für die Herstellung von Draht- und Rundstahlabmessungen mit häufig wechselnden Stahlqualitäten, beispielsweise Kohlenstoffstählen und/oder Edelstählen mit sehr unterschiedlichen Qualitätsmerkmalen und entsprechend unterschiedlichen thermischen Nach- bzw. Endbehandlungen, insbesondere bei vergleichsweise kleinen Chargen, führt eine derartige Ausstattung der Produktionslinien mit umfangreichen separaten Nachbehandlungseinrichtungen zu vergleichsweise hohen Investitions- und Betriebskosten. Dadurch werden die Produkte unwirtschaftlich verteuert.In the prior art, it was previously customary to assign a separate post-treatment system to each production line for wire or round steel. For the production of wire and round steel dimensions with frequently changing steel qualities, for example carbon steels and / or stainless steels with very different quality characteristics and correspondingly different thermal aftertreatments or final treatments, especially in the case of comparatively small batches, such production lines are equipped with extensive separate aftertreatment facilities comparatively high investment and operating costs. This makes the products uneconomically expensive.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine entsprechende Anlage zur Herstellung von gewalzten Draht- oder Rundstahlabmessungen in Coils anzugeben, durch welche die bei der thermischen Nachbehandlung der unterschiedlichen Walzprodukte anfallenden Kosten drastisch gesenkt werden, um dadurch eine wirtschaftliche Produktion auch von sehr unterschiedlichen Stahlqualitäten mit stark wechselnder Nachbehandlung sowie bei vergleichsweise geringen Einzelchargen zu ermöglichen.The invention has for its object to provide a method and a corresponding plant for the production of rolled wire or round steel dimensions in coils, through which the costs incurred in the thermal post-treatment of the different rolled products are drastically reduced, thereby economical production even of very different To enable steel grades with strongly changing aftertreatment and with comparatively small individual batches

Die Lösung der Aufgabe gelingt verfahrenstechnisch dadurch, daß für das Walzen der Drahtabmessungen eine Drahtproduktionslinie und für das Walzen der Rundstahlabmessungen eine dieser nebengeordnete Rundstahlproduktionslinie verwendet wird, und daß für jeden der unterschiedlichen Nachbehandlungsschritte der Walzerzeugnisse beider Produktionslinien eine diesen gemeinsam zugeordnete Nachbehandlungsanlage mit unterschiedlichen Nachbehandlungsstationen eingesetzt wird, wobei jedes Walzerzeugnis der einen oder der anderen Produktionslinie nach Maßgabe seiner vorgegebenen spezifischen Nachbehandlung einer oder nacheinander mehreren dieser unterschiedlichen Nachbehandungsstationen unter Verwendung von Transportmitteln zugeleitet wird.The problem is solved in terms of process engineering in that a wire production line is used for the rolling of the wire dimensions and one of these secondary steel production lines is used for the rolling of the round steel dimensions, and that for each of the different post-treatment steps of the rolled products of both production lines, a post-treatment system with different post-treatment stations assigned to them is used , wherein each rolled product of one or the other production line is fed to one or more of these different post-treatment stations in accordance with its specified specific post-treatment using transport means.

Mit Vorteil wird dadurch, daß das Walzen sowohl der Draht- als auch der Rundstahlabmessungen in einander nebengeordneten Produktionslinien durchgeführt wird und beiden Produktionslinien eine gemeinsame Nachbehandlungsanlage mit unterschiedlichen Stationen zugeordnet ist, und jedes Walzerzeugnis einer der beiden Produktionslinien nach Maßgabe seiner vorgesehenen speziellen Nachbehandlung eine oder nacheinander mehrere dieser unterschiedlichen Nachbehandlungsstation durchläuft, eine vorteilhafte Kombination der entsprechenden Nachbehandlungsschritte bei unterschiedlichen Walzerzeugnissen in einer besonders flexiblen und wirtschaftlichen Art erreicht. Die hierdurch erreichbare Verbesserung der Wirtschaftlichkeit sowie Flexibilität gestattet es auch, kleinere Losgrößen einzelner Chargen mit unterschiedlichen Stahlqualitäten ökonomisch zu produzieren.It is advantageous that the rolling of both the wire and the round steel dimensions is carried out in production lines that are adjacent to one another and that both production lines are assigned a common aftertreatment system with different stations, and each rolled product is one or successively one of the two production lines in accordance with its intended special aftertreatment passes through several of these different post-treatment stations, an advantageous combination of the corresponding post-treatment steps for different rolled products is achieved in a particularly flexible and economical manner. The improvement in efficiency and flexibility that can be achieved in this way also allows smaller batch sizes of individual batches to produce different steel qualities economically.

Weitere Ausgestaltungen des Verfahrens sind entsprechend den Merkmalen der Unteransprüche vorgesehen.Further refinements of the method are provided in accordance with the features of the subclaims.

Eine Anlage zur Durchführung des Verfahrens umfaßt erfindungsgemäß

  • a) eine Drahtproduktionslinie mit einer mehrgerüstigen Drahtstraße und eine Rundstahlproduktionslinie mit einer z. B. mehrgerüstigen Rundstahlstraße, die von einer gemeinsamen, einen Knüppelofen und ein Kühlbett aufweisenden Knüppelzufuhrlinie abgezweigt und nebeneinander angeordnet sind,
  • b) eine den Produktionslinien nachgeordnete Nachbehandlungsanlage, umfassend:
    • eine der einen oder anderen Produktionslinie zugeordnete Coilbildestation sowohl für Rundstahlabmessungen als auch für Drahtabmessungen,
    • eine übergabevorrichtung für Drahtcoils zu der Rundstahl- Produktionslinie,
    • eine am Ende der Stelmorlinie angeordnete Coilbildevorrichtung für Drahtabmessungen mit einer daran anschließenden übergabevorrichtung für Draht- oder Rundstahlcoils,
    • eine der einen oder der anderen Produktionslinie zugeordnete Coiltransport- und Kühleinrichtung.
A plant for carrying out the method comprises according to the invention
  • a) a wire production line with a multi-stand wire mill and a round steel production line with a z. B. multi-stand round steel mill branched from a common billet feed line having a billet furnace and a cooling bed and arranged side by side,
  • b) a post-treatment system downstream of the production lines, comprising:
    • a coil forming station assigned to one or the other production line both for round steel dimensions and for wire dimensions,
    • a transfer device for wire coils to the round steel production line,
    • a coil forming device for wire dimensions arranged at the end of the Stelmor line, with a subsequent transfer device for wire or round steel coils,
    • a coil transport and cooling device assigned to one or the other production line.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus den nachfolgenden Erläuterungen eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles.Further details, features and advantages of the invention result from the following explanations of an exemplary embodiment shown schematically in the drawing.

Die in der Figur gezeigte Anlage umfaßt einen Knüppelofen (10) mit einer Knüppelzufuhrlinie (9). Diese endet in einem Kühlbett (8). Von der Knüppelzufuhrlinie (9) zweigt je eine Drahtproduktionslinie (1) und eine Rundstahlproduktionslinie (2) ab. In der Drahtproduktionslinie (1) ist eine mehrgerüstige Drahtstraße bzw. Drahtfertigstraße (11) und in der Rundstahlproduktionslinie (2) eine gegebenenfalls mehrgerüstige Rundstahlstraße (12) angeordnet. Der Drahtstraße (11) ist z. B. eine Stelmorlinie (4) mit oder ohne Kühllufteinrichtung zugeordnet. An ihrem Ende befindet sich eine Coilbildevorrichtung (6) für Drahtabmessungen. Der Rundstahlproduktionslinie (2) bzw. der Rundstahlstraße (12) ist eine Coil-Bildevorrichtung (3) sowohl für Rundstahlabmessungen als auch für Drahtabmessungen nachgeordnet, die auf einem Coiltransport (5) langsam abgekühlt werden sollen. Die Coilbildevorrichtung (3) und die Stelmorlinie (4) sind durch eine Quertransporteinrichtung (13) an ihrer Einlaufseite und fallweise auch durch eine übergabevorrichtung für Draht- und Rundstahlcoils (7) an ihrem Ende funktionell miteinander verknüpft.The system shown in the figure comprises a billet furnace (10) with a billet feed line (9). This ends in a cooling bed (8). A wire production line (1) and a round steel production line (2) branch off from the billet feed line (9). A multi-stand wire mill or wire finishing train (11) is arranged in the wire production line (1) and an optionally multi-stand round steel mill (12) is arranged in the round steel production line (2). The wire mill (11) is, for. B. assigned a Stelmor line (4) with or without cooling air device. At its end there is a coil forming device (6) for wire dimensions. The round steel production line (2) or the round steel mill (12) is followed by a coil forming device (3) for round steel dimensions as well as for wire dimensions that are to be slowly cooled on a coil transport (5). The coil forming device (3) and the Stelmor line (4) are functionally linked to one another by a transverse transport device (13) on their inlet side and occasionally also by a transfer device for wire and round steel coils (7) at their end.

Durch diese Quertransport- bzw. Bundübergabeeinrichtungen (7, 13) ergibt sich der Vorteil, daß für die unterschiedlichen Material- bzw. Abkühlungsarten bzw. für die entsprechenden Stationen für schnelle oder langsame Abkühlung jeweils nur eine Bundbildevorrichtung fallweise für Rundstahlabmessungen bzw. für Drahtabmessungen vorhanden sein muß. Die Bundbildestation (3) für Rundstahlabmessungen kann auch für Drahtabmessungen, die langsam abgekühlt werden müssen, verwendet werden, und umgekehrt. Andererseits kann schnell abzukühlender Rundstahl und Draht in einer mit Garrett-Haspel und Wasserbad ausgerüsteten Bundbildevorrichtung nachbehandelt werden. Weiterhin erfordert die Anlage nur einen Bundtransport für Draht oder Rundstahl für langsames Abkühlen z. B. in einem Garrett-Haspel mit anschließendem Transport durch eine Isolierkammer oder mit überstülpbaren Isolierhauben zu einem oder mehreren gemeinsamen Abstellplätzen.These transverse transport or coil transfer devices (7, 13) have the advantage that for the different types of material or cooling or for the corresponding stations for rapid or slow cooling, only one coil forming device is available for round steel dimensions or for wire dimensions got to. The coil forming station (3) for round steel dimensions can also be used for wire dimensions that need to be cooled slowly, and vice versa. On the other hand, round steel and wire that can be cooled quickly can be post-treated in a coil forming device equipped with a Garrett reel and water bath. Furthermore, the system only requires a coil transport for wire or round steel for slow cooling z. B. in a Garrett reel with subsequent transport through an isolation chamber or with slip-on insulation hoods to one or more common parking spaces.

Die Anlage zur Herstellung von gewalzten Draht- oder Rundstahlabmessungen in Coils ist über die gezeigte Grundausstattung gemäß Teildarstellung (A) hinaus mit einfachen Mitteln ausbaufähig, z. B. durch späteren Ausbau einer Stelmorlinie (4) für verzögerte Abkühlung mit Isolationskammer oder für langsames Abkühlen mit Isolierhauben, die auch beheizbar sein können. Für schnelle Abkühlung kann z. B. zusätzlich ein Garrett-Haspel, beispielsweise mit einer Wassersprüheinrichtung, und für schockartiges Abschrecken ein Wasserbad oder auch ein Wasser-Garrett-Haspel vorgesehen sein. Jede dieser unterschiedlichen Nachbehandlungs- Einrichtungen ist erfindungsgemäß für beide Produktionslinien vorteilhaft nur einmal vorhanden und für jedes unterschiedliche Walzprodukt durch Mittel zum Zwischentransport (7, 13) ansteuerbar bzw. erreichbar. Auf diese Weise erreicht die Anlage mit sparsamstem Einsatz von Produktions- und Nachbehandlungsmitteln ein hohes Maß an Flexibilität für eine besonders wirtschaftliche Produktion unterschiedlicher Walzgut-Abmessungen bzw. Stahlqualitäten.The system for the production of rolled wire or round steel dimensions in coils can be expanded with simple means beyond the basic equipment shown according to partial illustration (A), e.g. B. by later expansion of a Stelmor line (4) for delayed cooling with an isolation chamber or for slow cooling with insulating hoods, which can also be heated. For quick cooling, e.g. B. additionally a Garrett reel, for example with a water spray device, and for shock-like quenching a water bath or a water Garrett reel be provided. According to the invention, each of these different post-treatment devices is advantageously only available once for both production lines and can be controlled or reached for each different rolled product by means of intermediate transport (7, 13). In this way, with the most economical use of production and post-treatment agents, the plant achieves a high degree of flexibility for a particularly economical production of different rolling stock dimensions or steel qualities.

Claims (9)

Verfahren zur Herstellung von gewalzten Draht- oder Rundstahlabmessungen aus C-Stählen und/oder Edelstählen in Coils, wobei als Vormaterial Knüppel verwendet und diese mit Walztemperatur einem Knüppelofen entnommen und in aufeinanderfolgenden Arbeitsschritten mehrgerüstiger Walzstraßen zu Draht- bzw. Rundstahlabmessungen ausgewalzt und diese anschließend in einer Folge von Nachbehandlungsschritten zu Coils aufgewickelt, gekühlt und einem Bundtransport übergeben werden, wobei diese Nachbehandlungsschritte nach Maßgabe von Materialqualität und vorgegebener Endproduktqualität in unterschiedlichen Stationen und insbesondere mit unterschiedlichen Temperaturgradienten erfolgen, dadurch gekennzeichnet, daß für das Walzen der Drahtabmessungen eine Drahtproduktionslinie und für das Walzen der Rundstahlabmessungen eine dieser nebengeordnete Rundstahlproduktionslinie verwendet wird, und daß für jeden der unterschiedlichen Nachbehandlungsschritte der Walzerzeugnisse beider Produktionslinien eine diesen gemeinsam zugeordnete Nachbehandlungsanlage mit unterschiedlichen Nachbehandlungsstationen eingesetzt wird, wobei jedes Walzerzeugnis der einen oder der anderen Produktionslinie nach Maßgabe seiner vorgegebenen spezifischen Nachbehandlung einer oder nacheinander mehreren dieser unterschiedlichen Nachbehandungsstationen unter Verwendung von Transportmitteln zugeleitet wird.Process for the production of rolled wire or round steel dimensions from carbon steels and / or stainless steels in coils, using billets as the raw material and removing them from a billet furnace at the rolling temperature and rolling them out in successive steps of multi-stand rolling mills to wire or round steel dimensions and then these in one Sequence of post-treatment steps are wound into coils, cooled and transferred to a coil transport, these post-treatment steps taking place in different stations and in particular with different temperature gradients in accordance with material quality and specified end product quality, characterized in that a wire production line for rolling the wire dimensions and for rolling the Round steel dimensions one of this secondary round steel production line is used, and that for each of the different post-treatment steps of the rolled products of both products ion lines a jointly assigned aftertreatment system with different aftertreatment stations is used, each rolled product of one or the other production line being fed to one or more of these different aftertreatment stations in accordance with its specified specific aftertreatment using transport means. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Walzerzeugnis der einen Produktionslinie einer der anderen Produktionslinie zugeordneten Nachbehandlungsstation zugeleitet wird.A method according to claim 1, characterized in that a rolled product of one production line is fed to an aftertreatment station assigned to the other production line. Verfahren nach Anspruch 1 oder 2, zur kombinierten Anwendung bei Erzeugissen der Draht- und Rundstahl-Produktionslinie, dadurch gekennzeichnet, daß für langsames Abkühlen das walzwarme Erzeugnis unter Verwendung eines Windungslegers in sich teilweise überdeckenden Windungen auf ein Transportmittel aufgefächert, anschließend die Windungen fallweise auf einen Quertransport geleitet und von diesem in einem Garrett-Haspel bzw. einer Bundbildekammer zu einem Bund gebildet und während des Transportes auf einer Bundtransporteinrichtung langsam abgekühlt und dabei die Bunde entweder durch eine Isolierkammer oder unter einer überstülpten Isolierhaube transportiert werden und die Isolierkammer oder -haube fallweise auch beheizt wird.A method according to claim 1 or 2, for combined use in products of the wire and round steel production line, characterized in that for slow cooling, the hot rolled product is fanned out onto a means of transport in partially overlapping turns using a winding layer, and then the turns occasionally onto one Transverse transport directed and formed by this in a Garrett reel or a bundle chamber to form a bundle and slowly cooled during transport on a bundle transport device and the bundles are transported either through an insulation chamber or under a slipped insulation hood and the insulation chamber or hood also occasionally is heated. Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zum schnelleren Abkühlen während des Bundtransportes z. B. eine Stelmorlinie mit Kühlluft verwendet wird.Method according to one or more of claims 1 to 3, characterized in that for faster cooling during the bundle transport z. B. a Stelmor line with cooling air is used. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zum schnellen Abkühlen und/oder Abschrecken ein Garrett-Haspel bzw. eine Bundbildekammer, die mit Wasser gefüllt sind, verwendet und darin das Walzerzeugnis zu einem Bund gebildet und zugleich schnell abgekühlt wird, worauf die so abgekühlten Bunde einem Bundtransport übergeben werden.Method according to one or more of claims 1 to 4, characterized in that for rapid cooling and / or quenching, a Garrett reel or a bundle forming chamber, which are filled with water, is used and the rolled product therein into a bundle is formed and at the same time cooled rapidly, whereupon the bundles thus cooled are transferred to a bundle transport. Anlage zur Herstellung von gewalzten Draht- oder Rundstahlabmessungen in Coils aus C-Stählen und/oder Edelstählen, zur Durchführung des Verfahrens nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß diese die folgenden Anlagenteile bzw. Stationen umfaßt: a) eine Drahtproduktionslinie (1) mit einer mehrgerüstigen Drahtstraße (11) und eine Rundstahlproduktionslinie (2) mit einer z. B. mehrgerüstigen Rundstahlstraße (12), die von einer gemeinsamen, einen Knüppelofen (10) und ein Kühlbett (8) aufweisenden Knüppelzufuhrlinie (9) abgezweigt und nebeneinander angeordnet sind, b) eine den Produktionslinien (1, 2) nachgeordnete Nachbehandlungsanlage, umfassend: - eine der Produktionslinie (1) oder (2) zugeordnete Coilbildestation (3) sowohl für Rundstahlabmessungen als auch für Drahtabmessungen, - eine Übergabevorrichtung (13) für Drahtcoils zu der Rundstahl- Produktionslinie (2), - eine am Ende der Stelmorlinie (4) angeordnete Coilbildevorrichtung (6) für Drahtabmessungen mit einer daran anschließenden übergabevorrichtung (7) für Draht- oder Rundstahlcoils, - eine der Produktionslinie (1) oder (2) zugeordnete Coiltransport- und Kühleinrichtung (5). Plant for the production of rolled wire or round steel dimensions in coils made of carbon steels and / or stainless steels, for carrying out the method according to one or more of the preceding claims, characterized in that it comprises the following plant parts or stations: a) a wire production line (1) with a multi-stand wire mill (11) and a round steel production line (2) with a z. B. multi-stand round steel mill (12) which are branched from a common billet furnace line (9) and have a billet furnace (10) and a cooling bed (8) and are arranged side by side, b) an aftertreatment system downstream of the production lines (1, 2), comprising: - a coil forming station (3) assigned to the production line (1) or (2) both for round steel dimensions and for wire dimensions, - A transfer device (13) for wire coils to the round steel production line (2), - A coil forming device (6) arranged at the end of the Stelmor line (4) for wire dimensions an adjoining transfer device (7) for wire or round steel coils, - One of the production line (1) or (2) associated coil transport and cooling device (5). Anlage nach Anspruch 6, dadurch gekennzeichnet, daß die Nachbehandlungsanlage zum verzögerten Abkühlen Isolationskammern und für langsames Abkühlen Isolierhauben, fallweise mit Beheizungseinrichtung, aufweist.System according to claim 6, characterized in that the after-treatment system has isolation chambers for delayed cooling and insulating hoods for slow cooling, sometimes with a heating device. Anlage nach Anspruch 6, dadurch gekennzeichnet, daß die Nachbehandlungsanlage für schnelles Abkühlen einen Garrett-Haspel mit Wasserbad aufweist.Plant according to claim 6, characterized in that the post-treatment plant for rapid cooling has a Garrett reel with a water bath. Anlage nach Anspruch 6, dadurch gekennzeichnet, daß die Nachbehandlungsanlage eine Transporteinrichtung zu Abstellplätzen aufweist.System according to claim 6, characterized in that the aftertreatment system has a transport device to parking spaces.
EP92103643A 1991-03-19 1992-03-03 Method and plant for rolling wire or rounds into coils from carbon and/or high-grade steel Expired - Lifetime EP0504655B1 (en)

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DE4108941 1991-03-19
DE4108941A DE4108941A1 (en) 1991-03-19 1991-03-19 METHOD AND SYSTEM FOR THE PRODUCTION OF ROLLED WIRE OR ROUND STEEL DIMENSIONS IN COILS FROM C-STEELS AND / OR STAINLESS STEELS

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JP3023030B2 (en) 2000-03-21
DE4108941A1 (en) 1992-09-24
JPH07164007A (en) 1995-06-27
EP0504655B1 (en) 1997-07-16
US5568744A (en) 1996-10-29
DE59208699D1 (en) 1997-08-21

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