EP2259886A1 - Procédé et dispositif pour une installation composite de coulée et de laminage - Google Patents

Procédé et dispositif pour une installation composite de coulée et de laminage

Info

Publication number
EP2259886A1
EP2259886A1 EP09727363A EP09727363A EP2259886A1 EP 2259886 A1 EP2259886 A1 EP 2259886A1 EP 09727363 A EP09727363 A EP 09727363A EP 09727363 A EP09727363 A EP 09727363A EP 2259886 A1 EP2259886 A1 EP 2259886A1
Authority
EP
European Patent Office
Prior art keywords
scissors
cutting
plant
strand
cast
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
EP09727363A
Other languages
German (de)
English (en)
Other versions
EP2259886B1 (fr
Inventor
Michael Jesche
Daniel Ness
Wolfgang Peitl
Alois Seilinger
Robert Andrew Shore
Gerald Hohenbichler
Heinrich Puehringer
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.)
SIEMENS VAI METALS TECHNOLOGIES GmbH
Primetals Technologies Austria GmbH
Original Assignee
SIEMENS VAI METALS TECHNOLOGIES GmbH
Siemens VAI Metals Technologies GmbH Austria
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 SIEMENS VAI METALS TECHNOLOGIES GmbH, Siemens VAI Metals Technologies GmbH Austria filed Critical SIEMENS VAI METALS TECHNOLOGIES GmbH
Publication of EP2259886A1 publication Critical patent/EP2259886A1/fr
Application granted granted Critical
Publication of EP2259886B1 publication Critical patent/EP2259886B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49989—Followed by cutting or removing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5184—Casting and working

Definitions

  • the present invention relates to a method and an apparatus for producing hot-rolled products in a cast-rolling composite plant.
  • the invention relates to a method of producing hot rolled products in a cast-roll compound plant wherein an endlessly-extruded precursor is uncut, i. transported as a strand, to a rolling mill, rolled there, then cooled, cut and stored.
  • Cast-rolling compound systems for implementing this method essentially comprise a casting installation, a roller table, a rolling plant suitable for direct use on cast products, a cooling section and a storage device (eg a flat product rewinder, a wire laying device or a long product outlet section) ,
  • a storage device eg a flat product rewinder, a wire laying device or a long product outlet section
  • the method known from WO 00/71272 Al is not suitable because a collision between the continuous produced starting material and the separated strand section can not be avoided.
  • the continuous casting process must continue to be interrupted in the event of an unplanned production interruption.
  • the object of the invention is to provide a method and a casting-rolling compound of the type mentioned, with which the continuous continuous casting process not only in a planned but also in an unplanned production interruption, which, for example, in a heating line, a finishing train, a cooling line or a storage device occurs, can be maintained.
  • the continuously produced by a continuous casting plant and possibly pre-rolled material is referred to as the starting material.
  • the separated part of the strand of the continuously produced starting material is referred to in this document as a strand section.
  • the pieces of primary material which are fragmented and discharged by the first pair of scissors are called scrap pieces.
  • Interruptions may preferably be unplanned interruptions, eg emergency stops, but also planned interruptions for conversion, repair or maintenance work, which occur in one of the device for cutting and discharging downstream plant part.
  • the dismembering of the primary material and discharging the scrap pieces is maintained until either no more material passes the first pair of scissors or stops production interruption, ie. the operational readiness of the cast-rolling composite plant has been restored. Before resuming normal operation of the cast-rolling composite, ensure that the cut strand section is removed and the lifting device lowered again.
  • the cutting of the strand portion of the continuously produced starting material by means of the first pair of scissors takes place simultaneously or immediately after the occurrence of production interruption. Truncation is considered to have taken place immediately after the stoppage of production, when the lifting of the lifting device was essentially initiated after a short period of time, including the signal transit times from a sensor to the controller and the controller to the lifting device, and the reaction time of the controller.
  • the lifting of the foot part of the strand section by means of the lifting device is advantageously carried out immediately after the cutting of the strand section and ensures that there can be no collision between the cut strand section and the continuously produced starting material.
  • the scrap pieces are conveyed into a lowerable roller table, which is located downstream of the first pair of scissors, and until the operational readiness of the cast-rolled composite plant. It should be noted that the retractable roller table is raised again before resuming normal operation of the cast-rolling composite system.
  • the scrap pieces can also be discharged by means of a transverse conveyor from the roller table in an external storage area.
  • the method according to the invention is carried out if, at the same time or after the cutting off of the strand section, the starting material is split by a second pair of shears upstream of the first shears onto precursor sections which are separated by a discharge device which extends between the second section and the first pair of scissors is to be discharged.
  • the thus-sized starting material sections have a certain length, for example 8 to 14 m, and are referred to as preproduct sections and may be e.g. be subjected to a later processing in an external rolling mill. The breakdown of the primary material and the discharge of the precursor sections are maintained until the operational readiness of the cast-rolling composite plant is restored.
  • the conveying out of precursor sections by means of the discharge device is advantageously carried out by lifting the precursor sections from the roller table, transporting them to a stacking device and lowering them into a stacking device.
  • the process is carried out at large total thickness changes between the endless continuously cast starting material and the end product, that the starting material after its complete fürerstar- tion in a single or multi-stand roughing without additional heating, ie with the casting heat of the continuous casting process, pre-rolled becomes.
  • the continuously cast starting material is rolled in a continuous casting line downstream Vorwalzments, which in this embodiment, even large changes in thickness in the roughing mill, especially when using a so-called High-Reduction Mill, can be achieved without additional heating of the rolling stock.
  • a reduction in the transport speed of the extruded starting material at the same time or immediately after the occurrence of a production interruption, or the cutting of the strand section with the first pair of scissors, can be advantageous for different reasons.
  • this may be the case if commercial utilization of the scrap pieces or the precursor product sections is not to be expected.
  • this may be the case when the second pair of scissors is designed as pendulum scissors, which may only work reliably at relatively low transport speeds, but would like to begin as soon as possible with the discharge of precursor sections.
  • the reduction of the transport speed of the starting material is achieved by driving up one or more stands of the roughing mill.
  • the reduction of the transport speed of the semi-finished material can also be achieved by reducing the casting speed of the continuously operating continuous casting plant.
  • This measure is particularly useful if the starting material is not pre-rolled and / or a commercial utilization of the starting material is not expected.
  • the inventive method proves to be advantageous.
  • a starter strand is introduced into the continuous casting plant, which is moved along with the cast strand.
  • the Anfahrstrangkopf is separated with a part of the endless continuously cast starting material of one of the scissors (the first or second scissors) and removed in the field of Aus detailvorraum.
  • a wedge piece formed on the continuously cast starting material during start-up of the pre-rolling line is separated or dismembered by the second pair of scissors and removed in the area of the discharge device.
  • a wedge piece is formed, for example, during the operation of the
  • the temperature of the uncut starting material may be calmed by means of a heating section before rolling in the finishing train. temperature is set.
  • a device for cutting and discharging a first pair of scissors and downstream includes a lowerable roller table and a lifting device.
  • a lifting device can be sunk in the lowerable roller table.
  • the means for cutting and discharging is carried out so that the first scissors upstream of a second pair of scissors and between the second and the first pair of scissors is a Aus finevorraum.
  • a heating section and, where appropriate, a descaling system is expediently located in front of a single-stand or multi-stand finishing train.
  • a foot part of a cut strand section can then be lifted from the roller table particularly quickly and advantageously when the lifting device is designed as a hydraulically driven lifting beam.
  • upstream and / or downstream of the first and / or the second pair of scissors are each motor-driven rollers or drive rollers.
  • first pair of scissors as drum shears and / or the second pair of scissors as pendulum scissors.
  • the heating section As a tunnel heating section with induction heating.
  • Fig. 1 is a schematic representation of a casting-rolling composite plant for fully continuous endless operation according to the invention
  • FIG. 2 and 3 are schematic representations of a device according to the invention for cutting and discharging
  • FIG. 4 is a schematic representation of a discharge device according to the invention
  • FIG. 1 shows a cast-rolled composite plant 1.
  • a continuous casting plant 2 generates a continuously continuously cast starting material 3, which is transported by means of a roller table 4 to a rough rolling mill 5.
  • the starting material 3 passes through uncut, ie as a strand, a means for cutting and conveying 6 before the temperature of the starting material is set in a heating section 12 to rolling temperature.
  • a descaling plant 13 which is upstream of a finishing train 14
  • the descaled starting material in the on or Rolled multi-stand finishing train 14 After the treatment of the starting material in a descaling plant 13, which is upstream of a finishing train 14, the descaled starting material in the on or Rolled multi-stand finishing train 14.
  • the finished ge ⁇ rolled material is then cooled in a cooling line 15, cut by a shear 16 to a specific product ⁇ length or a specific product weight and then wound by a reel-out as ⁇ led storage device 17th
  • FIG. 2 an inventive embodiment of the device for cutting and Ausfactn 6, comprising a first scissors 9, a lowerable roller table 18 and a lifting device 11 is shown in more detail.
  • the following process steps are carried out in the device for cutting and discharging 6: a) cutting a strand section 21 of the continuously produced semi-finished material 3 by means of Drum shear performed first pair of scissors 9. Cutting occurs simultaneously or immediately after production stoppage occurs. b) raising the foot part of the cut strand section 21 from the roller table 4 in the area after the first scissors 9 by means of the lifting device 11, which is designed as a hydraulically driven lifting beam.
  • a further embodiment according to the invention of the means for dividing and conveying 6, comprising a second scissors 7, a Aus detergentvor512 8, a first scissors 9, a lowerable roller table 18 and a lifting device 11 shown in more detail.
  • the steps b and c are carried out as already described under FIG. 2.
  • the transport speed of the preliminary material 3 is reduced simultaneously or immediately after the cutting of the strand section 21. This is done either by driving one or more stands of the roughing mill or by reducing the casting speed of the continuously operating continuous casting plant.
  • At least individual rollers of the roller table before and / or after the first pair of scissors 7 and / or the second pair of scissors 9 are designed as motor-driven rollers or as so-called drive rollers 20.
  • rollers By means of these rollers, it is possible, on the one hand, to rapidly transport a precursor section 10 from the second scissors 7 to the discharge device 8 (creating a gap between adjacent incoming material 3 and the precursor section 10, thereby On the other hand, it is also possible to quickly transport the cut from the second pair of scissors 7 material to the first scissors 9 (the dismembering of scrap pieces).
  • the scrap pieces 19 Before restarting the normal operation of the cast-rolling composite system, it must be ensured that the scrap pieces 19 are removed from the lowered roller table, for example by means of a crane or similar equipment, and that the strand section 21 is likewise removed, for example by means of a crane 22.
  • the lifting device 11 Before restarting the normal operation of the cast-rolling composite system, it must be ensured that the scrap pieces 19 are removed from the lowered roller table, for example by means of a crane or similar equipment, and that the strand section 21 is likewise removed, for example by means of a crane 22. Furthermore, the lifting device 11 must be lowered and the lowerable roller
  • the Aus finevorraum 8 is shown in more detail.
  • a lifting cylinder 24 and a displacement cylinder 25 it is possible to lift a precursor section 10 with a transport platform 26 from a roller table, not shown, to convey to a stacking device 23 and store there.
  • the lifting cylinder 24 is connected via a pivot lever 27 to the transport platform 26 and primarily responsible for the lifting operation.
  • the displacement cylinder 25 is also connected via a pivot lever 28 and a linkage with the transport platform 26 and primarily responsible for the displacement operation.
  • the cyclic movement sequence of the transport platform 26 (solid lines show the starting position, dashed lines show the end position) and the transport path of the prefabricated section 10 transported therewith is illustrated in the movement diagram with arrows.
  • the stacking device 23 comprises a storage platform, which is adjustable in height by means of a lifting element 29 (designed as a hydraulic, pneumatic cylinder or electric lifting spindle drive). This makes it possible to stack several Vor etc.abête each other and thus very compact. LIST OF REFERENCE NUMBERS

Abstract

La présente invention concerne un procédé et un dispositif de fabrication de produits laminés à chaud dans une installation composite de coulée et de laminage. L’objet de l’invention est de créer un procédé et une installation composite de coulée et de laminage permettant de conserver le processus de coulée continue ininterrompu, que l’interruption de la production, qui se produit par exemple dans un parcours de chauffage, un train de finisseur, un parcours de refroidissement ou un dispositif de stockage, soit prévue ou non. Ce problème est résolu par un procédé selon lequel, pour surmonter une interruption de la production dans une partie de l’installation située en aval du dispositif de découpage et d’évacuation (6), les étapes de procédé suivantes sont réalisées : a) découper une section barre (21) du matériau précurseur (3) produit en continu au moyen d’une première machine à cisailler (9) ; b) lever la partie pied de la section barre (21) du convoyeur à rouleaux (4) au moyen d’un dispositif de levage (11) ; c) réduire le matériau précurseur (3) passant par la première machine à cisailler (9) en morceaux de ferraille (19) au moyen de la première machine à cisailler (9), évacuer les morceaux de ferraille (19), retirer la section barre (21) jusqu’à la restauration de l’état de marche de l’installation composite de coulée et de laminage.
EP09727363A 2008-04-04 2009-03-04 Procédé et dispositif pour une installation composite de coulée et de laminage Active EP2259886B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0053308A AT506603B8 (de) 2008-04-04 2008-04-04 Verfahren und vorrichtung für eine giess-walz-verbundanlage
PCT/EP2009/052532 WO2009121678A1 (fr) 2008-04-04 2009-03-04 Procédé et dispositif pour une installation composite de coulée et de laminage

Publications (2)

Publication Number Publication Date
EP2259886A1 true EP2259886A1 (fr) 2010-12-15
EP2259886B1 EP2259886B1 (fr) 2012-05-09

Family

ID=40577774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09727363A Active EP2259886B1 (fr) 2008-04-04 2009-03-04 Procédé et dispositif pour une installation composite de coulée et de laminage

Country Status (11)

Country Link
US (2) US8276647B2 (fr)
EP (1) EP2259886B1 (fr)
JP (1) JP5266380B2 (fr)
KR (1) KR101495515B1 (fr)
CN (1) CN102056690B (fr)
AT (2) AT506603B8 (fr)
BR (1) BRPI0910696B1 (fr)
ES (1) ES2384678T3 (fr)
RU (1) RU2489227C2 (fr)
UA (1) UA101970C2 (fr)
WO (1) WO2009121678A1 (fr)

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CN110814021A (zh) * 2019-12-02 2020-02-21 三门前庭机械科技有限公司 一种可调节轧制厚度的金属轧制设备
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AT506603A1 (de) 2009-10-15
EP2259886B1 (fr) 2012-05-09
ES2384678T3 (es) 2012-07-10
BRPI0910696A8 (pt) 2017-12-05
US20110056649A1 (en) 2011-03-10
RU2489227C2 (ru) 2013-08-10
BRPI0910696A2 (pt) 2017-10-10
US20120291248A1 (en) 2012-11-22
AT506603B8 (de) 2010-03-15
UA101970C2 (uk) 2013-05-27
US8453711B2 (en) 2013-06-04
WO2009121678A1 (fr) 2009-10-08
JP2011516268A (ja) 2011-05-26
KR20100131005A (ko) 2010-12-14
ATE556794T1 (de) 2012-05-15
CN102056690A (zh) 2011-05-11
JP5266380B2 (ja) 2013-08-21
RU2010144966A (ru) 2012-05-20
US8276647B2 (en) 2012-10-02
BRPI0910696B1 (pt) 2018-07-24
AT506603B1 (de) 2009-12-15
KR101495515B1 (ko) 2015-03-04
CN102056690B (zh) 2014-04-23

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