EP4240544A1 - Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir - Google Patents

Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir

Info

Publication number
EP4240544A1
EP4240544A1 EP21786887.6A EP21786887A EP4240544A1 EP 4240544 A1 EP4240544 A1 EP 4240544A1 EP 21786887 A EP21786887 A EP 21786887A EP 4240544 A1 EP4240544 A1 EP 4240544A1
Authority
EP
European Patent Office
Prior art keywords
roll
rolled product
roll stand
conveying direction
stand
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
EP21786887.6A
Other languages
German (de)
English (en)
Other versions
EP4240544B1 (fr
EP4240544C0 (fr
Inventor
Olaf Norman Jepsen
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 Group GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP4240544A1 publication Critical patent/EP4240544A1/fr
Application granted granted Critical
Publication of EP4240544B1 publication Critical patent/EP4240544B1/fr
Publication of EP4240544C0 publication Critical patent/EP4240544C0/fr
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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
    • 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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
    • B21B2001/225—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 by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/04—Lateral deviation, meandering, camber of product

Definitions

  • the invention relates to a method for opening and/or closing a roll stand during rolling, in particular hot rolling, of a rolled product.
  • the invention also relates to a roll stand and a device for rolling a rolled product.
  • a roll stand has at least two work rolls aligned in parallel, which form a roll gap through which the rolled product usually passes for the purpose of thickness reduction.
  • the relative position of the work rolls for setting the roll gap can be varied, for example, by hydraulic adjustment of one or both work rolls.
  • the rolled product is conveyed through an open roll stand without the work rolls exerting a forming force on the rolled product. Only after a certain time or a certain strip length is the roll stand closed in order to start or continue the actual rolling process.
  • the nip of the roll stand is opened first, as a result of which the reduction in thickness on this roll stand is reduced to zero in order to enable a roll change. After the roll change, the roll gap is closed.
  • One object of the invention is to specify an improved concept for opening and closing a roll stand, in particular to improve the reliability of the rolling process.
  • the method, the roll stand and the device are used in particular in a rolling mill for rolling a rolled product made of metal, preferably steel or a non-ferrous metal.
  • the rolled product is preferably a metal strip, in particular a hot strip.
  • the method according to the invention relates to the opening and/or closing of a roll stand with at least two work rolls forming a roll gap.
  • the rolled product is transported through the roll gap along a conveying direction.
  • At least one of the two work rolls is in the
  • the "employment” refers to the degree of inclination of the work roll in said plane relative to the other work roll or to the plane of the strip, provided that the rolled product is in the form of a strip.
  • the rolled product is transported through the roll gap along the conveying direction, and meanwhile the roll stand is opened or closed by the roll gap being enlarged or reduced accordingly.
  • the work rolls exert—in contrast to the closed state—preferably no rolling force, at most a small rolling force, on the rolled product.
  • a position of the rolled product in front of and/or behind the roll gap in a direction transverse to the conveying direction, i.e. in the axial direction of the work rolls, is detected during the opening and closing of the roll stand.
  • the terms “before” and “after” are defined relative to the conveying direction of the rolled product.
  • the adjustment of the corresponding work roll is changed in such a way that the rolled product is held or stabilized at a desired position during the opening or closing of the roll stand.
  • the adjustment of both work rolls can also be changed for this purpose.
  • the roll gap or its geometric shape is accordingly regulated during the opening or closing of the roll stand in such a way that the rolled product does not run away to the side, but is held close to a desired position.
  • the process of opening and closing the roll stand is stabilized while the rolled product is being conveyed at the same time, which improves the quality of production and minimizes any rejects.
  • particularly efficient production is possible because, for example, a flying
  • position and “location” are used interchangeably in relation to the transverse placement of the rolled product in the nip.
  • the position of the rolled product is preferably detected without contact, so that no unnecessary forces act on the rolled product to carry out the method and the reliability of the corresponding detectors is also increased, since they are subject to little or no wear.
  • the position of the rolled product is detected, for example, optically, preferably by means of one or more cameras, by means of radar or laser scanning.
  • existing systems can be retrofitted in a mechanically simple and reliable manner.
  • a physical parameter can be used that indirectly maps the position of the rolled product, such as a strip tension distribution.
  • the strip tension distribution can be measured across the width of the rolled product, i.e. in the axial direction of the work rolls, before and/or after the rolling stand and then used for control to keep the position of the rolled product stable.
  • the adjustment of the work roll is preferably changed hydraulically, as a result of which the adjustability is implemented in a mechanically simple and reliable manner.
  • two hydraulic cylinders are installed that act as actuators.
  • the hydraulic cylinders can act directly on the right and left of the work roll in question, or they can move a unit made up of a work roll and an associated back-up roll.
  • the adjustment of the work roll can also be varied in other ways, for example by means of one or more electric motors or linear motors.
  • the method presented above in the various variants can also be used in a rolling mill, in particular a hot rolling mill, with a plurality of roll stands which together form a rolling train, in particular a tandem train.
  • the rolled product is transported through the nip of each of the roll stands along the conveying direction, while one or more of the roll stands are opened or closed.
  • a position of the rolled product in front of and/or behind the associated roll gap is detected in a direction transverse to the conveying direction, and the adjustment of the corresponding work roll is changed depending on the detected position in such a way that the rolled product during of the opening or closing of the corresponding roll stand is stabilized or held at a target position.
  • one or more roll stands can be opened and closed at the same time without having to stop the production process or fear a loss of quality.
  • a roll stand for rolling a rolled product preferably a metal strip
  • the roll stand comprising: at least two work rolls which form a roll gap in which the rolled product that can be transported in a conveying direction can be deformed; one
  • Adjustment device that is set up to vary the adjustment of at least one of the work rolls in a plane perpendicular to the conveying direction and to open or close the roll stand accordingly by increasing or reducing the roll gap; and a position controller that is set up to detect a position of the rolled product in front of and/or behind the roll gap in a direction transverse to the conveying direction while the roll stand is being opened or closed and to change the adjustment of the corresponding work roll depending on the detected position that the rolled product is stabilized or held at a desired position during the opening and closing of the roll stand.
  • the position control preferably comprises at least one position detector, set up to detect the position of the rolled product in front of and/or behind the roll gap without contact.
  • the position detector preferably comprises one or more cameras.
  • the position controller also includes a position evaluation in communication with the position detector and a position controller in communication with the position evaluation, the position evaluation being set up to determine the current position of the rolled product in the direction transverse to the conveying direction from the detection values of the position detector and to the position controller to transmit, wherein the position controller is set up to calculate a swivel value for the screwdown device from the current position of the rolled product and to control it directly or via a position controller of the screwdown device in such a way that the position of the rolled product during the opening or closing of the roll stand the target position is stabilized.
  • the position detector, the position evaluation and the position controller can be implemented as separate structural units that communicate with one another or also as an integral part. Furthermore, the position control can be implemented centrally or decentrally, as part of internet-based and/or cloud-based applications or in some other way, and access databases if necessary. In general, the communication between the electronic components, such as between the position controller and the adjustment device(s), between the position detector and the position evaluation, and between the position evaluation and the position controller, can be wireless or wired.
  • the adjusting device preferably comprises one or more, preferably exactly two, hydraulic cylinders, which act as actuators of the adjusting device.
  • the roll stand has two back-up rolls respectively in contact with the work rolls to support the work rolls and to avoid or at least limit deflection of the work rolls under load.
  • a device for rolling a rolled product preferably a metal strip
  • several roll stands are provided, which form a rolling train, preferably a tandem rolling train.
  • FIG. 1 shows a schematic of a roll stand with working and back-up rolls and an adjustment device for varying the roll gap, the roll stand being shown in an opened state;
  • FIG. 2 shows a schematic of a roll stand with working and back-up rolls and an adjustment device for varying the roll gap, the roll stand being shown in a closed state;
  • FIG. 3 shows a rolling mill train with a plurality of roll stands and a position controller
  • FIG. 4 shows a schematic of a tandem rolling train with a number of roll stands and a number of position controls
  • FIG. 5 shows a schematic of a roll stand with working and back-up rolls and a position control according to a further exemplary embodiment.
  • FIG. 1 shows a schematic of a roll stand 1 for rolling a rolled product B, in particular a strip-shaped product B, which can be transported in a conveying direction R (perpendicular to the plane of the figure).
  • the roll stand 1 is designed as a four-high stand, preferably for rolling a hot strip, i.e. for use in a hot flat rolling mill.
  • the rolling stand 1 can also have a different structure and/or be designed for a different application, for example as a cold rolling stand for metal strips or a structural rolling stand.
  • the roll stand 1 of the present exemplary embodiment has two parallel, opposite work rolls 10 which form a roll gap S, and two associated back-up rolls 11 which are respectively in contact with the work rolls 10 in order to support the work rolls 10 and deflect the work rolls 10 to be avoided or at least limited under load.
  • the roll stand 1 also has an adjustment device 12 which is set up to move at least one of the two work rolls 10, preferably the upper work roll 10, in the vertical direction, i.e. in the direction of gravity, in order to change the roll gap S.
  • the adjusting device 12 can move the structural unit made up of the working roll 10 and the associated back-up roll 11, as can be seen from a comparison of FIGS.
  • the adjusting device 12 is also set up to adjust not only the vertical position of the work roll 10 in question, but also its inclination in the plane perpendicular to the conveying direction R.
  • This can be realized in that the adjusting device 12 has two points of application on the work roll 10 or the structural unit made up of the work roll 10 and the back-up roll 11 .
  • the two positioning positions are referred to as “operating side positioning position” sos and “driving side positioning position” SDS, motivated by the position of the drive (not shown in the figures) for the rollers 10, 11 on the drive side DS and the position of the Access for operating personnel on the operating side OS, for example for maintenance of the roll stand 1, for the replacement of rolls 10, 11 and the like.
  • the adjusting device 12 comprises two hydraulic cylinders 12a, which act as actuators of the adjusting device 12.
  • the adjustment of the work roll 10 can also be varied in other ways, for example by means of one or more linear and/or electric motors.
  • the roll stand 1 of FIG. 1 is shown in an open or raised state, in which the roll gap S is open and thus no reduction in the thickness of the rolling stock B takes place.
  • An open nip S can be required at the start of the rolling process, for threading the rolled product B into the one or more roll stands 1, for maintenance work, a flying roll change, i.e. a roll change during ongoing production, and in other process situations.
  • 2 shows the roll stand 1 in a closed or closed state, in which the working and back-up rolls 10, 11 are in their operating position, in which a rolling force Fw acts on the rolled product B and plastically deforms it, in particular reducing its thickness will.
  • Page 10 Roll gap S remains, but laterally, ie in the perspective of Figures 1 and 2 to the left / right, runs away.
  • the reason for this can be an inclined position of the adjustable work roll 10, as shown in an exaggerated manner in FIG.
  • the adjustment position sos on the operating side and the adjustment position SDS on the drive side do not match.
  • a position controller 20 is provided, which is shown schematically in FIGS.
  • the position controller 20 includes one or more position detectors 21 which are set up to detect the position of the rolled product B in front of and/or behind (seen in the conveying direction R) the roll gap S of a roll stand 1, preferably without contact.
  • the position detector 21 preferably includes one or more cameras 21a, which are directed, for example, at the strip edges of the rolled product B, if in strip form.
  • FIG. 3 shows a schematic plan view of a rolling train with a plurality of roll stands 1.
  • the position detector 21 detects the position of the rolled product B in the lateral direction, i.e., in the axial direction of the work rolls 10.
  • the position detector 21 can detect the position of the rolled product B by using a detector based on a different principle.
  • the position of the rolled product B in particular any strip edges, can thus be detected, for example using radar, laser scanning or another optical method.
  • a parameter that indirectly maps the position of the rolled product B such as a strip tension distribution, can be used.
  • the strip tension distribution can be measured across the width of the rolled product B, i.e. in the axial direction of the work rolls 10, in front of and/or behind the roll stand 1 and used for regulation.
  • the position detector 21 is in communication with a position evaluation 22 which is set up to determine the current position XACT of the rolled product B in the lateral direction from the detection values of the position detector 21 and to transmit it to a position controller 23 .
  • the position controller 23 calculates a pivot value (differential adjustment value) for the adjustment device 12 of the work rolls 10. By pivoting the work roll 10 by the adjustment device 12, the rolled product B can be moved laterally.
  • the position controller 23 now controls the relevant screwdown device 12 directly or via a position controller 13 of the screwdown device 12 (cf. FIGS. 4 and 5) in such a way that the rolled product position is stabilized while the roll gap S is being closed. In other words, the roll gap S is closed in such a way that the location or position of the rolled product B remains as close as possible to a target position.
  • the position controller 23 is in wired or wireless communication with the adjustment device 12 .
  • the position detector 21, the position evaluation 22 and the position controller 23 can be implemented as separate structural units that communicate with one another, or also as an integral part. Furthermore, the position controller 20 can be implemented centrally or decentrally, as part of internet-based and/or cloud-based applications or in some other way, and also access databases if necessary. In general, the communication between the electronic components, such as between position controller 20 and adjusting device(s) 12, between position detector 21 and position evaluation 22 and between position evaluation 22 and position controller 23, can be wireless or wired.
  • FIG. 4 shows a tandem rolling mill train 100 with a plurality of roll stands 1, with a number of position controls 20 being assigned to different roll stands 1.
  • FIG. 5 schematically shows a roll stand 1 with position control 20 according to a further exemplary embodiment.
  • the position controller 13 of the adjusting device 12 is divided here into a position controller 13a on the operating side OS and a position controller 13b on the drive side DS, which are set up for controlling the position of the corresponding side, preferably the corresponding hydraulic cylinder 12a.
  • FIG. 5 also shows the influence of the position control of the rolled product B on the position control of the adjusting device 12, with Feos denoting the adjusting force on the operating side OS and FCDS denoting the adjusting force on the drive side DS.
  • SREF designates a target value for the middle adjustment position
  • ASREF designates a target value for the differential adjustment position (pivoting value)
  • XREF designates a target value for the rolled product position
  • XOP designates an additional target value for the rolled product position, for example specified by a higher-level system controller or an operator.
  • the control of the rolled product position set out herein enables the process of opening and closing a roll stand 1 to be stabilized while a rolled product B is being transported, by keeping the position of the rolled product B in the lateral direction, i.e. transverse to the conveying direction R, close to a desired position. In this way, the quality of production can be improved and any rejects can be minimized.
  • the position controller 20 By installing the position controller 20 on a plurality of roll stands 1 of a rolling train, one or more roll stands 1 can also be opened and closed at the same time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé d'ouverture et/ou de fermeture d'une cage de laminoir (1) comportant deux cylindres de travail (10) formant un pincement (S) dans lequel un produit laminé (B) transporté dans une direction de transport (R) peut subir un formage, le positionnement d'au moins un cylindre de travail (10) pouvant varier dans un plan perpendiculaire au sens de transport (R), et le procédé consistant : à transporter le produit laminé (B) à travers le pincement (S) dans le sens de transport (R) et, pendant cette opération, à ouvrir ou fermer la cage de laminoir (1) en augmentant ou en diminuant de manière correspondante le pincement (S) ; à détecter, lors de l'ouverture ou de la fermeture de la cage de laminoir (1), une position du produit laminé (B) avant et/ou après le pincement (S) dans le sens transversal au sens de transport (R) ; et à changer le positionnement du rouleau de travail correspondant (10) en fonction de la position détectée, de telle sorte que le produit laminé (B) est stabilisé au niveau d'une position cible pendant l'ouverture ou la fermeture de la cage de laminoir (1).
EP21786887.6A 2020-11-05 2021-10-04 Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir Active EP4240544B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020213902.4A DE102020213902A1 (de) 2020-11-05 2020-11-05 Stabilisierung des Walzprodukts während des Auf- und/oder Zufahrens eines Walzgerüsts
PCT/EP2021/077251 WO2022096206A1 (fr) 2020-11-05 2021-10-04 Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir

Publications (3)

Publication Number Publication Date
EP4240544A1 true EP4240544A1 (fr) 2023-09-13
EP4240544B1 EP4240544B1 (fr) 2024-03-06
EP4240544C0 EP4240544C0 (fr) 2024-03-06

Family

ID=78080313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21786887.6A Active EP4240544B1 (fr) 2020-11-05 2021-10-04 Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir

Country Status (6)

Country Link
US (1) US20230405655A1 (fr)
EP (1) EP4240544B1 (fr)
JP (1) JP2023551368A (fr)
CN (1) CN116507432A (fr)
DE (1) DE102020213902A1 (fr)
WO (1) WO2022096206A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985314A (ja) * 1982-11-05 1984-05-17 Ishikawajima Harima Heavy Ind Co Ltd 圧延材の蛇行防止装置
JPS59191510A (ja) * 1983-04-13 1984-10-30 Ishikawajima Harima Heavy Ind Co Ltd 圧延材の蛇行制御方法及び装置
JPS59189012A (ja) * 1983-04-12 1984-10-26 Ishikawajima Harima Heavy Ind Co Ltd 圧延材の横曲り制御装置
DE102005051053A1 (de) * 2005-10-25 2007-04-26 Sms Demag Ag Verfahren zur Bandkantenerfassung
DE102007038758A1 (de) * 2006-11-07 2008-05-08 Siemens Ag Regelverfahren für ein Walzgerüst, Walzanordnung und Walzstraße

Also Published As

Publication number Publication date
WO2022096206A1 (fr) 2022-05-12
DE102020213902A1 (de) 2022-05-05
EP4240544B1 (fr) 2024-03-06
CN116507432A (zh) 2023-07-28
EP4240544C0 (fr) 2024-03-06
US20230405655A1 (en) 2023-12-21
JP2023551368A (ja) 2023-12-08

Similar Documents

Publication Publication Date Title
EP1896200B1 (fr) Procede et dispositif pour influencer de façon ciblee la geometrie d'une ebauche de feuillard dans un train ebaucheur
EP0121148B1 (fr) Procédé pour la fabrication de feuillard à chaud avec section et planéité de bande de haute qualité
DE69604330T2 (de) Verbesserungen in oder in Verband mit einer Einrichtung zum Kreuzen oder axialen Verschieben von Walzen
EP3584016B1 (fr) Réduction de l'usure des rouleaux de caisse à rouleaux
EP1278606B1 (fr) Procede et dispositif permettant d'enrouler un feuillard lamine a chaud dans une position correcte, dans un dispositif d'enroulement
WO1993000181A1 (fr) Systeme de regulation de la fabrication de feuillards lamines a chaud au moyen de laminoirs a chaud a cages multiples
EP3271092B1 (fr) Procédé de fabrication de bandes métalliques
EP1819456B1 (fr) Procede et train de laminage destines a ameliorer l'acheminement en sortie d'un feuillard lamine metallique, dont l'extremite se deplace a vitesse de laminage
EP3544751B1 (fr) Réglage de position de bande consistant à positionner des guides latéraux sur la bande métallique, avec limitation de force
EP2293889B1 (fr) Train de laminage continental doté d'intégrations et/ou de détachements de cages de laminoir en fonctionnement continu
EP0108379B1 (fr) Procédé et commande pour régler la distribution de l'effort de traction pendant le laminage à froid de bandes
DE19503363A1 (de) Einrichtung und Verfahren zum Regeln der Planheit und/oder Spannungsverteilung von gewalzten Metallbändern
EP4240544B1 (fr) Stabilisation du produit laminé lors de l'ouverture et/ou de la fermeture d'une cage de laminoir
EP1173295A1 (fr) Procede de laminage d'un feuillard metallique et dispositif de laminage y relatif
EP0752285A2 (fr) Procédé et dispositif de laminage de bandes ayant transversalement des irrégularités d'épaisseur et/ou de longeur
EP0734795B1 (fr) Procédé pour la régulation à action directe d'épaisseur dans le laminage de feuillards
WO2016020310A1 (fr) Régulateur de traction différentielle à configuration optimisée
EP3798750B1 (fr) Procédé de surveillance et de commande d'une installation de laminage de produits métalliques
DE3401894A1 (de) Verfahren zum herstellen von walzband mit hoher bandprofil- und bandplanheitsguete
EP0054172A2 (fr) Procédé et installation pour le laminage d'une bande détensionnée
EP0049425B1 (fr) Procédé et dispositif pour laminer une bande sans tension
DE102004022334A1 (de) Verfahren zum Walzen eines Walzgutes mit Übergangsbereich
EP4178735B1 (fr) Procédé et produit programme d'ordinateur pour calculer un programme de passes afin d'obtenir un procédé de laminage stable
EP2646883A1 (fr) Concept de réglage de paramètres d'un processus de laminage au moyen d'un glissement de palier mesuré
DE2366413C2 (de) Vorrichtung zur Steuerung der Ebenheit und Parallelität von Walzgutoberflächen

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230605

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
INTG Intention to grant announced

Effective date: 20231027

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231017

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502021002925

Country of ref document: DE

U01 Request for unitary effect filed

Effective date: 20240326

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240409

P04 Withdrawal of opt-out of the competence of the unified patent court (upc) registered

Effective date: 20240412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240606

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240606

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240606

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240607

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240306

U1N Appointed representative for the unitary patent procedure changed [after the registration of the unitary effect]

Representative=s name: HEMMERICH & KOLLEGEN; DE

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SMS GROUP GMBH

U1H Name or address of the proprietor changed [after the registration of the unitary effect]

Owner name: SMS GROUP GMBH; DE