EP2809459A1 - Steckel mill - Google Patents

Steckel mill

Info

Publication number
EP2809459A1
EP2809459A1 EP13703356.9A EP13703356A EP2809459A1 EP 2809459 A1 EP2809459 A1 EP 2809459A1 EP 13703356 A EP13703356 A EP 13703356A EP 2809459 A1 EP2809459 A1 EP 2809459A1
Authority
EP
European Patent Office
Prior art keywords
rolling mill
steckel
reversing
driver
mill according
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.)
Granted
Application number
EP13703356.9A
Other languages
German (de)
French (fr)
Other versions
EP2809459B1 (en
Inventor
Andreas Löhr
Moritz Schilling
Wolfgang Fuchs
David A. Nold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2809459A1 publication Critical patent/EP2809459A1/en
Application granted granted Critical
Publication of EP2809459B1 publication Critical patent/EP2809459B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • 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
    • 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
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B21B39/084—Looper devices

Definitions

  • the invention relates to a Steckel rolling mill, comprising at least one reversing rolling stand and each one on the inlet side and outlet side to the reversing rolling mill arranged winding furnace.
  • Steckel rolling mills of the type mentioned are known. Attention is drawn to US 3 613 426, to EP 0 593 398 A1, to EP 0 088 745 B1 and to JP 1 1207403 A, where Steckel rolling mills are disclosed and described.
  • the pre-rolled strip is introduced into the reversing stand under the feed side of the winding furnace and through an inlet-side driver. After the first pass, the rolling stock is threaded into the exit-side winding furnace. After the tape has been wound in the outlet-side winding furnace, a predetermined strip tension is set up between the winding furnace and the reversing stand and the strip is rolled at the appropriate speed.
  • the system is braked so that the end of the strip comes to a stop behind the nip of the reversing stand, but before an outlet-side driver.
  • the outgoing driver introduces the tape to the reversing stand.
  • the tape is threaded into the winding furnace on the inlet side.
  • the beginning of the strip comes to a standstill at the end of the second stitch between the input side driver and the reversing stand.
  • the invention has the object of providing a Steckel rolling mill of the generic type in such a way that a significant reduction of Length and the manufacturing cost is possible, the functionality of the rolling mill should be maintained at least largely.
  • the solution of this problem by the invention is characterized in that between the inlet side arranged winding furnace and the at least one reversing rolling mill and between the at least one reversing mill stand and the outlet side arranged winding furnace each an integral unit is arranged, a driver, a pair of scissors and a looper.
  • a driver a pair of scissors and a looper.
  • two adjacent reversing rolling stands are arranged between the winding furnaces; This concept is also referred to as the use of twin rolling stands.
  • the Steckel rolling mill is preferably free of rolling stands outside the at least one reversing roll stand between the winding furnaces; In particular, preferably no roughing stand is provided in the Steckel rolling mill.
  • the scissors is preferably designed as a toggle shears. It is preferably provided with a hydraulic drive.
  • the driver is preferably designed in swing construction. At least one role of the driver is preferably provided with a hydraulic adjusting element or is moved by this.
  • the integral unit preferably has a common machine frame for the driver, scissors and looper.
  • the common machine frame may further support at least one roller of a roller table.
  • a roller table for the material to be rolled can be arranged between the two winding furnaces and through the at least one reversing rolling stand.
  • the invention is based on an integral unit which unites a driver, a pair of scissors and a looper.
  • This combination of said elements in an integral unit brings technological advantages, especially when smaller Steckel mills are to be realized.
  • Another advantage is the much better maintenance of such a system.
  • the components driver, scissors and Looper mentioned are well known as such in the art, so they need not be described in detail here.
  • the scaffoldings are usually adapted only to the task of a finishing scaffold.
  • a preliminary band is first produced in reversing flat stitches from the slab, ie, the roughing task is initially done here. Only from a defined strip thickness, preferably from about 25 mm, is further reversibly rolled in Steckel mode using the ovens until the final dimension of the tape is reached.
  • the integral unit is thus arranged according to the invention at the point where otherwise the conventional driver is located, namely between the ovens and the reversing stands. There are two such units per Steckel mill provided.
  • the integral unit By the integral unit, an optimally short design for the individual functions can be realized, which are shorter than the juxtaposition of the individual components, as is the case in previously known Steckel rolling mills.
  • the number of interfaces is lower due to the integral concept, which also offers advantages. Therefore, the integral unit can be treated as a module within the Steckel mill.
  • the driver is mechanically easy to control in swing construction, in contrast to prior art Steckel drivers in door construction.
  • the swingarm design is low friction; A mathematical simulation is precisely possible, whereby the control is easier due to the always same behavior of the mechanics and leads to better control results.
  • the looper speeds up the process, allowing higher output with better quality.
  • the integral design allows a short plant length and a process-favorable temperature profile of the rolling stock. Advantages are also achieved in terms of operational safety:
  • the scissors can be designed with a very simple and at the same time robust construction. With regard to the driver, the swingarm construction is also advantageous in this respect compared to the door construction method.
  • the simple design and easy accessibility are a significant step forward here.
  • the scissors are operated by a simple scissors cylinder on the operating side (not by two drives as in previously known solutions). Additional drive cylinders may be mounted on the operator side, not on the less accessible drive side, so it is easy for the operator to replace or service them. This results in a clear concept with good accessibility also from a maintenance point of view. In Steckel rolling mills otherwise very close conditions are given in a variety of attachments, so that the drive side is hardly accessible.
  • the proposed concept comes out in total with a smaller number of components, which offers corresponding economic benefits.
  • the resulting larger integral unit - compared to the individual components - is still easy to handle and not too big.
  • the integral unit only has to be aligned once.
  • the components contained in the unit are already optimally aligned with the accuracy of the processing machines.
  • all components must be aligned separately.
  • the alignment errors are reduced while simultaneously reducing the alignment effort.
  • the installation of the larger unit with the various functions also saves time.
  • the integral units can be preassembled and piped to the site and installed in a short time.
  • FIG. 5 is a perspective view of the integral unit, shown from two different viewing directions, wherein the components of the unit are particularly well represented, and
  • Fig. 7 is a perspective view of the integral unit, shown from two different viewing directions, wherein the actuators
  • a Steckel rolling mill 1 which has two reversing rolling stands 2, which are arranged as twin stands next to each other.
  • a first winding furnace 3 To the left of the rolling stands 2, a first winding furnace 3, to the right of the rolling stands 2, a second winding furnace 4 is arranged.
  • a roller table 12 leads to be rolled Good.
  • a first integral unit 5 is arranged between the winding furnace 3 and the rolling stands 2; between the rolling stands 2 and the winding furnace 4, a second integral unit 6 is positioned.
  • each integral unit has a driver 7, a pair of scissors 8 and a looper 9.
  • the driver 7 has an upper driver roller 7 'and a lower driver roller 7 ".
  • the scissors 8 is designed as a toggle shears and has an upper knife 8' and a lower knife 8" which can cooperatively separate the slab and the band, respectively.
  • the driver 7 fulfills the transport and drive task, as they also occur in conventional Steckel rolling mills.
  • the use of the swing construction has proven particularly useful.
  • the scissors 8 allow the foot and head incision at the appropriate time of the process, without the tape leaves the Steckel Brown.
  • the defined band head or band foot thus produced allows safe transport and an optimal rolling process up to no finished thicknesses.
  • the Steckel-Looper 9 enables an acceleration of the winding process. This significantly increases the productivity of the system.
  • the components mentioned are illustrated once more in FIGS. 4 and 5, the drive side AS and the operating side BS being marked.
  • driver cylinder 15 with which the upper drive roller can be moved via a rocker.
  • Looper cylinders 16 can be seen (but only one of which can be seen), with which a looper roller can be moved.
  • the scissors 8 is operated by scissors-cylinder 17.
  • a hold-down cylinder 18 for the hold-down 14 Also shown is a hold-down cylinder 18 for the hold-down 14 and a roller table cylinder 19th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

The invention relates to a Steckel mill (1), comprising at least one reversing roll stand (2), a coiling furnace (3) arranged on the inlet side of the reversing roll stand (2), and a coiling furnace (4) arranged on the outlet side of the reversing roll stand. According to the invention, in order to achieve an economical implementation of a Steckel mill while maintaining high functionality, respective integral units (5, 6) having a driver (7), a shear (8), and a looper (8) are arranged between the coiling furnace (3) arranged on the inlet side and the at least one reversing roll stand (2) and between the at least one reversing roll stand (2) and the coiling furnace (4) arranged on the outlet side.

Description

Steckel-Walzwerk  Steckel mill
Die Erfindung betrifft ein Steckel-Walzwerk, umfassend mindestens ein Reversier- Walzgerüst und jeweils einen einlaufseitig und auslaufseitig zum Reversier- Walzgerüst angeordneten Wickelofen. The invention relates to a Steckel rolling mill, comprising at least one reversing rolling stand and each one on the inlet side and outlet side to the reversing rolling mill arranged winding furnace.
Steckel-Walzwerke der genannten Art sind bekannt. Es wird auf die US 3 613 426, auf die EP 0 593 398 A1 , auf die EP 0 088 745 B1 und auf die JP 1 1207403 A hingewiesen, wo Steckel-Walzwerke offenbart und beschrieben werden. Steckel rolling mills of the type mentioned are known. Attention is drawn to US 3 613 426, to EP 0 593 398 A1, to EP 0 088 745 B1 and to JP 1 1207403 A, where Steckel rolling mills are disclosed and described.
In einem Steckel-Walzwerk wird das vorgewalzte Band unter dem einlaufseitigen Wickelofen und durch einen einlaufseitigen Treiber ins Reversiergerüst zum Anstich eingeführt. Nach dem ersten Stich wird das Walzgut in den auslaufseitigen Wickelofen eingefädelt. Nachdem das Band im auslaufseitigen Wickelofen angewickelt worden ist, wird zwischen dem Wickelofen und dem Reversiergerüst ein vorgegebener Bandzug aufgebaut und das Band mit entsprechender Geschwindigkeit gewalzt. Wenn das Bandende in das Steckel-Walzwerk einläuft, wird die Anlage so abgebremst, dass das Bandende zwar hinter dem Walzspalt des Reversiergerüstes, jedoch vor einem auslaufseitigen Treiber zum Stillstand kommt. In a Steckel rolling mill, the pre-rolled strip is introduced into the reversing stand under the feed side of the winding furnace and through an inlet-side driver. After the first pass, the rolling stock is threaded into the exit-side winding furnace. After the tape has been wound in the outlet-side winding furnace, a predetermined strip tension is set up between the winding furnace and the reversing stand and the strip is rolled at the appropriate speed. When the end of the strip enters the Steckel rolling mill, the system is braked so that the end of the strip comes to a stop behind the nip of the reversing stand, but before an outlet-side driver.
Während des Reversierens wird der Walzspalt für den nächsten Stich angestellt. Der auslaufseitige Treiber führt das Band zum Anstich ins Reversiergerüst ein. Nach dem Anstich zum zweiten Stich wird das Band in den einlaufseitigen Wickelofen einfädelt. Der Bandanfang kommt am Ende des zweiten Stichs zwischen dem einlaufseitigen Treiber und dem Reversiergerüst zum Stillstand. Der Erfindung liegt die Aufgabe zugrunde, ein Steckel-Walzwerk der gattungsgemäßen Art so fortzubilden, dass eine wesentliche Verminderung der Baulänge und der Herstell kosten möglich wird, wobei die Funktionalität des Walzwerks zumindest weitgehend aufrecht erhalten werden soll. During reversing, the nip is set for the next pass. The outgoing driver introduces the tape to the reversing stand. After the first stitch to the second stitch, the tape is threaded into the winding furnace on the inlet side. The beginning of the strip comes to a standstill at the end of the second stitch between the input side driver and the reversing stand. The invention has the object of providing a Steckel rolling mill of the generic type in such a way that a significant reduction of Length and the manufacturing cost is possible, the functionality of the rolling mill should be maintained at least largely.
Die Lösung dieser Aufgabe durch die Erfindung ist dadurch gekennzeichnet, dass zwischen dem einlaufseitig angeordneten Wickelofen und dem mindestens einen Reversier-Walzgerüst und zwischen dem mindestens einen Reversier-Walzgerüst und dem auslaufseitig angeordneten Wickelofen je eine integrale Einheit angeordnet ist, die einen Treiber, eine Schere und einen Looper aufweist. Bevorzugt sind zwei benachbarte Reversier-Walzgerüste zwischen den Wickelöfen angeordnet; dieses Konzept wird auch als Einsatz von Twin- Walzgerüsten bezeichnet. The solution of this problem by the invention is characterized in that between the inlet side arranged winding furnace and the at least one reversing rolling mill and between the at least one reversing mill stand and the outlet side arranged winding furnace each an integral unit is arranged, a driver, a pair of scissors and a looper. Preferably, two adjacent reversing rolling stands are arranged between the winding furnaces; This concept is also referred to as the use of twin rolling stands.
Bevorzugt ist das Steckel-Walzwerk frei von Walzgerüsten außerhalb des mindestens einen Reversier-Walzgerüsts zwischen den Wickelöfen; insbesondere ist bevorzugt kein Vorgerüst im Steckel-Walzwerk vorgesehen. The Steckel rolling mill is preferably free of rolling stands outside the at least one reversing roll stand between the winding furnaces; In particular, preferably no roughing stand is provided in the Steckel rolling mill.
Die Schere ist bevorzugt als Kniehebelschere ausgebildet. Sie ist bevorzugt mit einem hydraulischen Antrieb versehen. The scissors is preferably designed as a toggle shears. It is preferably provided with a hydraulic drive.
Der Treiber ist bevorzugt in Schwingenbauweise ausgeführt. Mindestens eine Rolle des Treibers ist dabei vorzugsweise mit einem hydraulischen Verstellelement versehen bzw. wird durch dieses bewegt. Die integrale Einheit weist bevorzugt ein gemeinsames Maschinengestell für den Treiber, die Schere und den Looper auf. The driver is preferably designed in swing construction. At least one role of the driver is preferably provided with a hydraulic adjusting element or is moved by this. The integral unit preferably has a common machine frame for the driver, scissors and looper.
Das gemeinsame Maschinengestell kann weiterhin mindestens eine Rolle eines Rollgangtisches lagern. Zwischen den beiden Wickelöfen und durch das mindestens eine Reversier- Walzgerüst hindurch kann ein Rollgang für das zu walzende Gut angeordnet sein. The common machine frame may further support at least one roller of a roller table. A roller table for the material to be rolled can be arranged between the two winding furnaces and through the at least one reversing rolling stand.
Die Erfindung stellt also auf eine integrale Einheit ab, die einen Treiber, eine Schere und einen Looper in sich vereinigt. Diese Kombination der genannten Elemente in einer integralen Einheit bringt technologische Vorteile hervor, insbesondere wenn kleinere Steckel-Walzwerke zu realisieren sind. Vorteilhaft ist auch die wesentlich bessere Wartungsmöglichkeit einer solchen Anlage. Die genannten Komponenten Treiber, Schere und Looper sind als solche im Stand der Technik hinlänglich bekannt, so dass sie hier nicht näher beschrieben werden müssen. Thus, the invention is based on an integral unit which unites a driver, a pair of scissors and a looper. This combination of said elements in an integral unit brings technological advantages, especially when smaller Steckel mills are to be realized. Another advantage is the much better maintenance of such a system. The components driver, scissors and Looper mentioned are well known as such in the art, so they need not be described in detail here.
Auf ein Vorgerüst - also auf ein Walzgerüst neben dem mindestens einen Reversier-Walzgerüst - kann verzichtet werden. Ferner ist auch keine Schere mehr zum Schnitt des Vorbandes zwischen Vorgerüst und Steckelbereich vorgesehen. Dennoch kann mit dem vorgeschlagenen Konzept eine Bramme mit einer Ausgangsdicke von ca. 250 mm auf Enddicken von ca. 1 ,5 mm verarbeitet werden. On a roughing stand - ie on a rolling mill next to the at least one reversing mill - can be dispensed with. Furthermore, no more scissors is provided for cutting the Vorbandes between roughing and Steckelbereich. Nevertheless, with the proposed concept, a slab having an initial thickness of about 250 mm can be processed to final thicknesses of about 1.5 mm.
Hierzu sind die bevorzugt als Twin-Steckelgerüste ausgelegte Reversier- Walzgerüste so beschaffen, dass sie hohe Aufgänge realisieren können, um wie ein Vorgerüst arbeiten zu können. Gleichzeitig haben die Gerüste aber auch konstruktive Merkmale, um die dünnen Endabmessungen zu ermöglichen. Beim klassischen Konzept sind die Steckelgerüste zumeist lediglich auf die Aufgabe eines Fertiggerüsts abgestimmt. For this purpose, preferably designed as a twin Steckelgerüste reversing stands are designed so that they can realize high rises in order to work like a roughing stand. At the same time, however, the frameworks also have constructive features to enable the thin final dimensions. In the classical concept, the scaffoldings are usually adapted only to the task of a finishing scaffold.
Das insofern nicht benötigte Vorgerüst stellt eine Möglichkeit zu einer erheblichen Kosteneinsparung dar. Ohne Vorgerüst, das erfindungsgemäß bevorzugt fehlt, ist auch eine Schere zwischen Vorgerüst und Steckelgerüst nicht erforderlich, da man zum Schnitt von Kopf und Fuß das komplette Band aus dem Steckelbereich wieder herausfahren muss, was Zeit benötigt und einen Temperaturverlust im Walzgut bedingt. The scaffolding that is not required in this way represents a possibility for considerable cost savings. Without Vorgerüst, which preferably inventively lacking, a pair of scissors between scaffold and Steckelgerüst is not required because you have to drive out to cut the head and foot, the entire band from the Steckelbereich again, which requires time and caused a temperature loss in the rolling stock.
Da insoweit aber auf Fuß- und Kopfschnitte nicht verzichtet werden kann, wird die Scherenfunktion in den Steckelbereich verlagert. Hier werden dann zwei Scheren benötigt, die Teil der genannten integralen Einheit sind. Ein Vergleich der Anforderungen an die Schere zwischen Vorgerüst und Steckelbereich zu den erfindungsgemäß vorgesehenen Scheren innerhalb des Steckelbereichs ergibt, dass die Schere im klassischen Prozess viel stärker ausgelegt sein muss, da sie Vorbänder schneiden muss (ca. 35 mm). Es wird daher hier zumeist eine Trommelschere eingesetzt. However, as far as can not be waived foot and head cuts, the scissors function is shifted to the Steckelbereich. Here then two scissors are needed, which are part of the said integral unit. A comparison of the requirements for the scissors between the roughing stand and the plugging area to the scissors provided according to the invention within the Steckel area shows that the scissors must be designed much stronger in the classical process, since they have to cut pre-strips (about 35 mm). It is therefore used here mostly a drum shears.
Im Vergleich hierzu werden in der vorgeschlagenen integralen Einheit zumeist einfache Kniehebelscheren verwendet, die mit einem einfachen hydraulischen Antrieb versehen sind (hydraulische Kolben-Zylinder-Systeme). Die einfachere Bauweise ist möglich, da auch die Belastungen kleiner gehalten werden können, denn die Scheren werden prozessbedingt erfindungsgemäß erst ab Banddicken kleiner oder gleich 18 mm eingesetzt. In comparison, in the proposed integral unit usually simple toggle shears are used, which are provided with a simple hydraulic drive (hydraulic piston-cylinder systems). The simpler design is possible, since the loads can be kept smaller, because the scissors are used according to the process according to the invention only from strip thicknesses less than or equal to 18 mm.
Die Arbeitsweise des vorgeschlagenen Steckel-Walzwerks ohne Vorgerüst ist wie folgt: The operation of the proposed Steckel rolling mill without roughing stand is as follows:
Im Steckelbereich wird zunächst in reversierenden Flachstichen aus der Bramme ein Vorband erzeugt, d. h. es wird hier zunächst die Vorgerüstaufgabe erledigt. Erst ab einer definierten Banddicke, vorzugsweise ab ca. 25 mm, wird im Steckelmodus unter Verwendung der Öfen weiter reversierend gewalzt, bis die Endabmessung des Bandes erreicht ist. Die integrale Einheit wird erfindungsgemäß also an der Stelle angeordnet, an der sich sonst der herkömmliche Treiber befindet, nämlich zwischen den Öfen und den Reversier-Gerüsten. Es sind zwei derartige Einheiten pro Steckel-Walzwerk vorgesehen. In the Steckel area, a preliminary band is first produced in reversing flat stitches from the slab, ie, the roughing task is initially done here. Only from a defined strip thickness, preferably from about 25 mm, is further reversibly rolled in Steckel mode using the ovens until the final dimension of the tape is reached. The integral unit is thus arranged according to the invention at the point where otherwise the conventional driver is located, namely between the ovens and the reversing stands. There are two such units per Steckel mill provided.
Durch die integrale Einheit kann eine optimal kurze Bauweise für die einzelnen Funktionen realisiert werden, die kürzer sind als die Aneinanderreihung der einzelnen Komponenten, wie es in vorbekannten Steckel-Walzwerken der Fall ist. Die Anzahl der Schnittstellen ist infolge des integralen Konzepts geringer, was auch insofern Vorteile bietet. Daher kann die integrale Einheit wie ein Modul innerhalb des Steckel-Walzwerks behandelt werden. By the integral unit, an optimally short design for the individual functions can be realized, which are shorter than the juxtaposition of the individual components, as is the case in previously known Steckel rolling mills. The number of interfaces is lower due to the integral concept, which also offers advantages. Therefore, the integral unit can be treated as a module within the Steckel mill.
Die einzelnen Komponenten der integralen Einheit haben sich als solche bereits als vorteilhaft erwiesen. The individual components of the integral unit have already proved to be advantageous as such.
Durch das vorgeschlagene integrale Vereinigen der genannten Funktionen ergeben sich technologische Vorteile: The proposed integral merging of said functions yields technological advantages:
Der Treiber ist in Schwingenbauweise mechanisch leicht zu beherrschen, im Gegensatz zu vorbekannten Steckel-Treibern in Torbauweise. Die Schwingen- Bauart ist reibungsarm; eine mathematische Simulation ist präzise möglich, wodurch die Regelung infolge des stets gleichen Verhaltens der Mechanik leichter möglich ist und zu besseren Regelergebnissen führt. Der Looper beschleunigt den Prozess, so dass eine höhere Ausbringung bei besserer Qualität möglich ist. Die integrale Bauweise erlaubt eine kurze Anlagenlänge und einen prozessbegünstigenden Temperaturverlauf des Walzguts. Vorteile werden auch hinsichtlich der Betriebssicherheit erzielt: Die Schere kann mit einer sehr einfachen und gleichzeitig robusten Bauweise ausgeführt werden. Hinsichtlich des Treibers ist auch insoweit die Schwingenbauweise vorteilhaft gegenüber der Torbauweise. The driver is mechanically easy to control in swing construction, in contrast to prior art Steckel drivers in door construction. The swingarm design is low friction; A mathematical simulation is precisely possible, whereby the control is easier due to the always same behavior of the mechanics and leads to better control results. The looper speeds up the process, allowing higher output with better quality. The integral design allows a short plant length and a process-favorable temperature profile of the rolling stock. Advantages are also achieved in terms of operational safety: The scissors can be designed with a very simple and at the same time robust construction. With regard to the driver, the swingarm construction is also advantageous in this respect compared to the door construction method.
Der integrale Einbau der genannten Elemente in ein robustes gemeinsames Maschinengestell sorgt für einen größeren Widerstand gegenüber starken dynamischen Belastungen der Einheit. Die Gestelle der einzelnen Elemente bieten dem gegenüber keine vergleichbar robuste Fundamentverankerungsmöglichkeit. Es ist von herkömmlichen Lösungen bekannt, dass allein stehende Treiber Probleme durch Lösen vom Fundament bekommen. The integral installation of these elements in a robust common machine frame provides greater resistance to strong dynamic loads of the unit. The racks of the individual elements offer no comparable robust foundation anchoring option. It is known from conventional solutions that stand alone drivers get problems by solving the fundament.
Hinsichtlich der Wartung ergeben sich gleichermaßen Vorteile: Die einfache Gestaltung und gute Zugänglichkeit ist hier ein wesentlicher Fortschritt. Die Schere wird durch einen einfachen Scherenzylinder an der Bedienseite betätigt (nicht durch zwei Antriebe wie bei vorbekannten Lösungen). Weitere Antriebszylinder können auf der Bedienseite angebracht sein, nicht auf der schwerer zugänglichen Antriebsseite, so dass es für den Bediener leicht ist, diese zu tauschen oder zu warten. Es ergibt sich somit auch unter Wartungsgesichtspunkten ein übersichtliches Konzept mit guten Zugangsmöglichkeiten. Bei Steckel-Walzwerken sind sonst sehr enge Verhältnisse bei einer Vielzahl von Anbauten gegeben, so dass die Antriebsseite kaum zugänglich ist. With regard to maintenance, there are equally advantages: The simple design and easy accessibility are a significant step forward here. The scissors are operated by a simple scissors cylinder on the operating side (not by two drives as in previously known solutions). Additional drive cylinders may be mounted on the operator side, not on the less accessible drive side, so it is easy for the operator to replace or service them. This results in a clear concept with good accessibility also from a maintenance point of view. In Steckel rolling mills otherwise very close conditions are given in a variety of attachments, so that the drive side is hardly accessible.
Es ist auch möglich, die beschriebenen integralen Einheiten für den Einsatz des Loopers vorzubereiten, diesen aber noch nicht auszuführen, sondern ihn erst im Rahmen einer Nachrüstung zu realisieren. It is also possible to prepare the described integral units for the use of the looper, but not to execute this, but to realize him only as part of a retrofit.
Das vorgeschlagene Konzept kommt in Summe mit einer geringeren Anzahl an Bauteilen aus, was entsprechende wirtschaftliche Vorteile bietet. Die so entstehende größere integrale Einheit - verglichen mit den Einzelkomponenten - ist dennoch gut handhabbar und nicht zu groß. Die integrale Einheit muss nur einmal ausgerichtet werden. Die in der Einheit enthaltenen Komponenten sind mit der Genauigkeit der Bearbeitungsmaschinen bereits optimal aufeinander ausgerichtet. Im Vergleich dazu müssen bei vorgekannten Lösungen alle Komponenten separat ausgerichtet werden. Somit werden bei der erfindungsgemäßen Lösung die Ausrichtfehler bei gleichzeitigem Rückgang des Ausrichtaufwands geringer. The proposed concept comes out in total with a smaller number of components, which offers corresponding economic benefits. The resulting larger integral unit - compared to the individual components - is still easy to handle and not too big. The integral unit only has to be aligned once. The components contained in the unit are already optimally aligned with the accuracy of the processing machines. In comparison, in the case of previously known solutions, all components must be aligned separately. Thus, in the solution according to the invention, the alignment errors are reduced while simultaneously reducing the alignment effort.
Der Einbau der größeren Einheit mit den verschiedenen Funktionen spart auch Zeit. Die integralen Einheiten können vormontiert und verrohrt an den Einsatzort verbracht und in kurzer Zeit eingebaut werden. The installation of the larger unit with the various functions also saves time. The integral units can be preassembled and piped to the site and installed in a short time.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen: die Seitenansicht eines Steckel-Walzwerks, schematisch in einer seitlichen Schnittansicht eine integrale Einheit mit Treiber, Schere und Looper, wobei ein Band durch die Einheit geführt ist, Fig. 3 in perspektivischer Ansicht und teilweise geschnitten die integrale In the drawing, an embodiment of the invention is shown. Shown are: the side view of a Steckel rolling mill, schematically in a side sectional view an integral unit with driver, scissors and looper, with a band passed through the unit, Fig. 3 in perspective view and partially in section the integral
Einheit mit durch die Einheit geführtem Band,  Unit with band guided by the unit,
Fig. 4 und 4 and
Fig. 5 in perspektivischer Ansicht die integrale Einheit, dargestellt aus zwei verschiedenen Blickrichtungen, wobei die Komponenten der Einheit besonders gut dargestellt sind, und  5 is a perspective view of the integral unit, shown from two different viewing directions, wherein the components of the unit are particularly well represented, and
Fig. 6 und Fig. 6 and
Fig. 7 in perspektivischer Ansicht die integrale Einheit, dargestellt aus zwei verschiedenen Blickrichtungen, wobei die Betätigungsorgane Fig. 7 is a perspective view of the integral unit, shown from two different viewing directions, wherein the actuators
(Hydraulikzylinder) besonders gut dargestellt sind. In Fig. 1 ist ein Steckel-Walzwerk 1 dargestellt, das zwei Reversier-Walzgerüste 2 aufweist, die als Twin-Gerüste nebeneinander angeordnet sind. Links neben den Walzgerüsten 2 ist ein erster Wickelofen 3, rechts neben den Walzgerüsten 2 ein zweiter Wickelofen 4 angeordnet. Ein Rollgang 12 führt das zu walzende Gut. (Hydraulic cylinders) are particularly well represented. In Fig. 1, a Steckel rolling mill 1 is shown, which has two reversing rolling stands 2, which are arranged as twin stands next to each other. To the left of the rolling stands 2, a first winding furnace 3, to the right of the rolling stands 2, a second winding furnace 4 is arranged. A roller table 12 leads to be rolled Good.
Zwischen dem Wickelofen 3 und den Walzgerüsten 2 ist eine erste integrale Einheit 5 angeordnet; zwischen den Walzgerüsten 2 und dem Wickelofen 4 ist eine zweite integrale Einheit 6 positioniert. Between the winding furnace 3 and the rolling stands 2, a first integral unit 5 is arranged; between the rolling stands 2 and the winding furnace 4, a second integral unit 6 is positioned.
Einzelheiten zu den erfindungswesentlichen integralen Einheiten 5, 6 finden sich in den weiteren Figuren. In Fig. 2 und Fig. 3 ist zu sehen, dass jede integrale Einheit einen Treiber 7, eine Schere 8 und einen Looper 9 aufweist. Details of the integral units 5, 6 according to the invention can be found in the further figures. It can be seen in FIGS. 2 and 3 that each integral unit has a driver 7, a pair of scissors 8 and a looper 9.
Der Treiber 7 hat eine obere Treiberrolle 7' und eine untere Treiberrolle 7". Die Schere 8 ist als Kniehebelschere ausgebildet und hat ein oberes Messer 8' und ein unteres Messer 8", die zusammenwirkend die Bramme bzw. das Band trennen können. The driver 7 has an upper driver roller 7 'and a lower driver roller 7 ". The scissors 8 is designed as a toggle shears and has an upper knife 8' and a lower knife 8" which can cooperatively separate the slab and the band, respectively.
Aller genannten Komponenten 7, 8, 9 sind in einem gemeinsamen Maschinengestell angeordnet. In Fig. 2 ist die Führung des Walzguts 13 durch die Einheit 5, 6 zu erkennen. Zur Führung des Walzguts dient auch ein Niederhalter 14. Im Maschinengestell 10 ist auch eine Rolle 1 1 eines Rollgangs 12 gelagert. All mentioned components 7, 8, 9 are arranged in a common machine frame. In Fig. 2, the leadership of the rolling stock 13 through the unit 5, 6 can be seen. In the machine frame 10, a roller 1 1 of a roller table 12 is also stored for guiding the rolling stock.
Der Treiber 7 erfüllt die Transport- und Antriebsaufgabe, wie sie auch bei konventionellen Steckel-Walzwerken auftreten. Dabei hat sich der Einsatz der Schwingenbauweise besonders bewährt. Die Schere 8 erlaubt den Fuß- und Kopfschnitt zum entsprechenden Zeitpunkt des Prozesses, ohne dass das Band den Steckelbereich verlässt. Der so erzeugte definierte Bandkopf bzw. Bandfuß erlaubt einen sicheren Transport und einen optimalen Walzprozess bis zu keinen Fertigdicken. The driver 7 fulfills the transport and drive task, as they also occur in conventional Steckel rolling mills. Here, the use of the swing construction has proven particularly useful. The scissors 8 allow the foot and head incision at the appropriate time of the process, without the tape leaves the Steckelbereich. The defined band head or band foot thus produced allows safe transport and an optimal rolling process up to no finished thicknesses.
Der Steckel-Looper 9 ermöglicht eine Beschleunigung des Wickelprozesses. Dadurch wird die Produktivität der Anlage deutlich erhöht. Die genannten Komponenten sind noch einmal in den Figuren 4 und 5 illustriert, wobei die Antriebsseite AS und die Bedienseite BS markiert sind. The Steckel-Looper 9 enables an acceleration of the winding process. This significantly increases the productivity of the system. The components mentioned are illustrated once more in FIGS. 4 and 5, the drive side AS and the operating side BS being marked.
In den Figuren 6 und 7 sind die wichtigsten Antriebselemente angedeutet. Zu erwähnen sind Treiber-Zylinder 15, mit denen die obere Treiberrolle über eine Schwinge bewegt werden kann. In Figures 6 and 7, the main drive elements are indicated. To mention are driver cylinder 15, with which the upper drive roller can be moved via a rocker.
Ferner sind Looper-Zylinder 16 zu erkennen (von denen aber nur einer gesehen werden kann), mit denen eine Looper-Rolle bewegt werden kann. Furthermore, Looper cylinders 16 can be seen (but only one of which can be seen), with which a looper roller can be moved.
Die Schere 8 wird mittels Scheren-Zylinder 17 betätigt. The scissors 8 is operated by scissors-cylinder 17.
Dargestellt ist noch ein Niederhalter-Zylinder 18 für den Niederhalter 14 und ein Rollgangs-Zylinder 19. Also shown is a hold-down cylinder 18 for the hold-down 14 and a roller table cylinder 19th
Bezuqszeichenliste: LIST OF REFERENCES:
I Steckel-Walzwerk I Steckel rolling mill
5 2 Reversier-Walzgerüst  5 2 Reversing rolling stand
3 Wickelofen  3 winding furnace
4 Wickelofen  4 winding furnace
5 integrale Einheit  5 integral unit
6 integrale Einheit  6 integral unit
10 7 Treiber 10 7 drivers
7' obere Treiberrolle  7 'upper driver role
7" untere Treiberrolle  7 "lower driver role
8 Schere  8 scissors
8' oberes Messer der Kniehebelschere 8 'upper knife of toggle shears
15 8" unteres Messer der Kniehebelschere15 8 "lower knife of the toggle shears
9 Looper 9 Looper
10 Maschinengestell  10 machine frame
I I Rolle des Rollgangtisches  I I role of the roller table
12 Rollgang  12 roller table
20 13 Walzgut  20 13 rolling stock
14 Niederhalter  14 hold downs
15 Treiber-Zylinder  15 driver cylinders
16 Looper-Zylinder  16 Looper cylinders
17 Scheren-Zylinder  17 scissors cylinders
25 18 Niederhalter-Zylinder  25 18 hold-down cylinder
19 Rollgangs-Zylinder  19 roller table cylinder
BS Bedienseite BS operating side
AS Antriebsseite  AS drive side
30  30

Claims

Patentansprüche: claims:
1 . Steckel-Walzwerk (1 ), umfassend mindestens ein Reversier-Walzgerüst (2) und jeweils einen einlaufseitig und auslaufseitig zum Reversier-Walzgerüst (2) angeordneten Wickelofen (3, 4), dadurch gekennzeichnet, dass zwischen dem einlaufseitig angeordneten Wickelofen (3) und dem mindestens einen Reversier-Walzgerüst (2) und zwischen dem mindestens einen Reversier-Walzgerüst (2) und dem auslaufseitig angeordneten Wickelofen (4) je eine integrale Einheit (5, 6) angeordnet ist, die einen Treiber (7), eine Schere (8) und einen Looper (9) aufweist. 1 . Steckel rolling mill (1), comprising at least one reversing roll stand (2) and each one inlet side and outlet side to the reversing stand (2) arranged winding furnace (3, 4), characterized in that between the inlet side arranged winding furnace (3) and the at least one reversing roll stand (2) and between the at least one reversing roll stand (2) and the coiling furnace (4) arranged on the outlet side each an integral unit (5, 6) is arranged which a driver (7), a pair of scissors ( 8) and a looper (9).
2. Steckel-Walzwerk nach Anspruch 1 , dadurch gekennzeichnet, dass zwei benachbarte Reversier-Walzgerüste (2) zwischen den Wickelöfen (3, 4) angeordnet sind. 2. Steckel rolling mill according to claim 1, characterized in that two adjacent reversing rolling stands (2) between the winding ovens (3, 4) are arranged.
3. Steckel-Walzwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass es frei ist von Walzgerüsten außerhalb des mindestens einen Reversier- Walzgerüsts (2) zwischen den Wickelöfen (3, 4), insbesondere frei von einem Vorgerüst. 3. Steckel rolling mill according to claim 1 or 2, characterized in that it is free of rolling stands outside the at least one reversing roll stand (2) between the winding furnaces (3, 4), in particular free of a roughing stand.
4. Steckel-Walzwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schere (8) als Kniehebelschere ausgebildet ist. 4. Steckel rolling mill according to one of claims 1 to 3, characterized in that the scissors (8) is designed as a toggle shears.
5. Steckel-Walzwerk nach Anspruch 4, dadurch gekennzeichnet, dass die Kniehebelschere (8) mit einem hydraulischen Antrieb versehen ist. 5. Steckel rolling mill according to claim 4, characterized in that the toggle shears (8) is provided with a hydraulic drive.
6. Steckel-Walzwerk nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Treiber (7) in Schwingenbauweise ausgeführt ist. 6. Steckel rolling mill according to one of claims 1 to 5, characterized in that the driver (7) is designed in swinging construction.
7. Steckel-Walzwerk nach Anspruch 6, dadurch gekennzeichnet, dass mindestens eine Rolle des Treibers (7) mit einem hydraulischen Verstellelement versehen ist. 7. Steckel rolling mill according to claim 6, characterized in that at least one roller of the driver (7) is provided with a hydraulic adjusting element.
8. Steckel-Walzwerk nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die integrale Einheit (5, 6) ein gemeinsames Maschinengestell (10) für den Treiber (7), die Schere (8) und den Looper (9) aufweist. 8. Steckel rolling mill according to one of claims 1 to 7, characterized in that the integral unit (5, 6) has a common machine frame (10) for the driver (7), the scissors (8) and the looper (9) ,
9. Steckel-Walzwerk nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das gemeinsames Maschinengestell (10) weiterhin mindestens eine Rolle (1 1 ) eines Rollgangtisches lagert. 9. Steckel rolling mill according to one of claims 1 to 8, characterized in that the common machine frame (10) further supports at least one roller (1 1) of a roller table.
10. Steckel-Walzwerk nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass zwischen den beiden Wickelöfen (3, 4) und durch das mindestens eine Reversier-Walzgerüst (2) hindurch ein Rollgang (12) für das zu walzende Gut (13) angeordnet ist. 10. Steckel rolling mill according to one of claims 1 to 9, characterized in that between the two winding ovens (3, 4) and through the at least one reversing rolling stand (2) through a roller table (12) for the material to be rolled (13 ) is arranged.
EP13703356.9A 2012-02-01 2013-01-31 Steckel mill Active EP2809459B1 (en)

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DE102012201418A DE102012201418A1 (en) 2012-02-01 2012-02-01 Steckel mill
PCT/EP2013/051888 WO2013113809A1 (en) 2012-02-01 2013-01-31 Steckel mill

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JPS5677006A (en) * 1979-11-30 1981-06-25 Mitsubishi Heavy Ind Ltd Strip mill
AT370346B (en) * 1981-03-25 1983-03-25 Voest Alpine Ag PLANT FOR THE HOT ROLLING OF TAPE OR TABLED ROLLED GOODS
AT380188B (en) 1982-03-05 1986-04-25 Voest Alpine Ag PLANT FOR THE HOT ROLLING OF TAPE OR TABLED ROLLED GOODS
US5285670A (en) 1992-10-15 1994-02-15 Tippins Incorporated Pinch roll and shear combination
ES2112440T3 (en) * 1993-05-17 1998-04-01 Danieli Off Mecc LINE TO PRODUCE BAND AND / OR IRON.
US5647236A (en) * 1995-01-11 1997-07-15 Tippins Incorporated Method of rolling light gauge hot mill band on a hot reversing mill
RU2104105C1 (en) * 1996-03-12 1998-02-10 Александр Арсентьевич Чижиков Continuous stand group of mill for making thick strips
JPH11207403A (en) 1998-01-22 1999-08-03 Hitachi Ltd Hot steel plate rolling apparatus and rolling method
UA79184C2 (en) * 2002-12-14 2007-05-25 Sms Demag Ag Method and installation for hot-rolling strips using reversible steckel rolling frame
DE102004025984A1 (en) * 2004-05-26 2005-12-15 Sms Demag Ag Method and device for assembly and functional testing of rolling fittings in rolling mills or in rolling mills, such as tandem rolling mills

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See references of WO2013113809A1 *

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RU2578335C1 (en) 2016-03-27
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WO2013113809A1 (en) 2013-08-08
CN104159677A (en) 2014-11-19
DE102012201418A1 (en) 2013-08-01

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