利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

203 条记录 (耗时 0.022 秒)

    WALZEN MIT MINIMIERUNG DES EINBRUCHS DER BIEGEKRAFT BEIM ANSTICH
    3.
    发明公开
    WALZEN MIT MINIMIERUNG DES EINBRUCHS DER BIEGEKRAFT BEIM ANSTICH 审中-公开

    公开(公告)号：EP4029618A1

    公开(公告)日：2022-07-20

    申请号：EP21152081.2

    申请日：2021-01-18

    申请人： Primetals Technologies Germany GmbH

    发明人： Hollaus, Andreas ,  Kurz, Matthias

    IPC分类号： B21B29/00 ,  B21B37/38

    摘要： In einem Walzgerüst wird ein flaches Walzgut aus Metall gewalzt. Die Arbeitswalzeneinbaustücken werden durch ein Biegesystem auseinander gedrückt. Einem Biegeregler wird ein Basissollwert (FBB*) zugeführt, unter dessen Berücksichtigung der Biegeregler einen resultierenden Sollwert (FB*) ermittelt. Dem Biegeregler wird weiterhin ein Istwert (FB) der Biegekraft zugeführt. Der Biegeregler ermittelt daraus eine Basisstellgröße (SB) für das Biegesystem, so dass bei Ansteuerung des Biegesystems mit der Basisstellgröße (SB)der Istwert (FB) dem Basissollwert (FBB*) möglichst angenähert wird. Ab einem Stabilisierungszeitpunkt (t3), der nach einem Anstichzeitpunkt (t2) liegt, ermittelt der Biegeregler den resultierenden Sollwert (FB*) unter zusätzlicher Berücksichtigung einer tatsächlichen Walzkraft (F). Während eines Anstichzeitraums, der vor dem tatsächlichen Anstichzeitpunkt (t2) beginnt und spätestens zum Stabilisierungszeitpunkt endet, wird dem Biegeregler ein Zusatzsollwert (FBZ*) zugeführt, den der Biegeregler bei der Ermittlung des resultierenden Sollwertes (FB*) berücksichtigt. Dadurch ist der Istwert (FB) der Biegekraft größer als der Basissollwert (FBB*). Alternativ oder zusätzlich wird auf die Basisstellgröße (SB) eine Zusatzstellgröße (SZ) aufgeschaltet oder die dem Biegesystem zugeführte Stellgröße (SR) durch eine Minimalstellgröße (SM) nach unten begrenzt.

    ROLLING MILL, METHOD FOR MANUFACTURING ROLLING MILL, AND METHOD FOR MODIFYING ROLLING MILL
    4.
    发明公开
    ROLLING MILL, METHOD FOR MANUFACTURING ROLLING MILL, AND METHOD FOR MODIFYING ROLLING MILL 审中-公开

    公开(公告)号：EP4019156A1

    公开(公告)日：2022-06-29

    申请号：EP20930355.1

    申请日：2020-04-07

    申请人： Primetals Technologies Japan, Ltd.

    发明人： HORII, Kenji ,  KURODA, Akio ,  SUGIMOTO, Tatsunori ,  SAKO, Akira

    IPC分类号： B21B29/00 ,  B21B31/02

    摘要： A rolling mill includes: bending cylinders 740, 741, and 744 for applying a bending force vertically to bearing housings 712 and 713 to thereby cause work rolls 710 and 711 to perform bending; a backlash elimination cylinder 760 for applying a pressing force in a rolling direction to the bearing housings 712 and 713; and members 712A and 713A disposed between the bending cylinder 741 and the bearing housings 712 and 713, and receiving the bending force from the bending cylinder 744. The bending cylinders 740 and 741 and the backlash elimination cylinder 760 are disposed axially on one of the entry and exit sides in the rolling direction, and the bending cylinder 741 and the members 712A and 713A are disposed on the other of the entry and exit sides in the rolling direction.

    INSTALLATION ET METHODE DE LAMINAGE A FROID D'UNE BANDE METALLIQUE
    8.
    发明公开
    INSTALLATION ET METHODE DE LAMINAGE A FROID D'UNE BANDE METALLIQUE 有权
    装置和方法冷轧的金属带

    公开(公告)号：EP2670540A1

    公开(公告)日：2013-12-11

    申请号：EP11709922.6

    申请日：2011-03-17

    申请人： Siemens Vai Metals Technologies SAS

    发明人： ROSSIGNEUX, Bernard ,  CHARRE, Francis ,  GUILLOT, Yves ,  PERRET, Jean ,  CRONIER, Vincent

    IPC分类号： B21B13/14 ,  B21B29/00 ,  B21B37/16 ,  B21B37/30

    CPC分类号： B21B13/147 ,  B21B29/00 ,  B21B37/165 ,  B21B37/30 ,  B21B38/02 ,  B21B2267/18 ,  B21B2269/08

    摘要： The invention relates to a rolling mill and to a cold-rolling method, wherein said rolling mill includes: an upper assembly of n rolls located in a recess of the rolling mill above a plane (P) along which a strip (9) to be rolled moves, and a lower assembly of n rolls located in another recess of the rolling mill opposite the upper assembly and below the plane (P) along which the strip (9) moves, wherein said upper and lower assemblies are to cooperate so as to apply a rolling force onto said strip (9); each of the assemblies including a working roll (1) contacting the strip (9) to be rolled and being supported by supporting cylinders (2) which are in turn supported by bearing cylinders (3) which are in turn supported by rows of bearing rollers (4); each row of bearing rollers (4) including a plurality of bearing rollers (4) mounted on a single roller-supporting axle (41); and at least one row of bearing rollers (4) of the upper assembly being actuated by a plurality of bearing-roller actuators (42) in a direction substantially perpendicular to the plane (P) along which the strip (9) moves, characterized in that: each bearing-roller actuator (42) is capable of applying a local force, along said direction substantially perpendicular to the plane along which the strip moves, directly onto the roller-supporting axle (41) of said row of rolls; in that the number of bearing-roller actuators (42) capable of applying said local force onto the supporting axle of a single row of bearing rollers is at least equal to the number of bearing rollers (4) of said row; and in that it comprises a control device (8) capable of controlling each of the actuators (42) such that the sum of the local forces applied by each of the actuators of the rolling mill is substantially equal to said rolling force.

    ROLLING OF METAL STRIP
    9.
    发明公开
    ROLLING OF METAL STRIP 有权
    金属带材轧制

    公开(公告)号：EP2554284A4

    公开(公告)日：2013-12-04

    申请号：EP11762311

    申请日：2011-01-12

    申请人： NIPPON STEEL & SUMITOMO METAL CORP

    发明人： OGAWA SHIGERU ,  HIGO TSUYOSHI ,  WAKATSUKI KUNIHIKO

    IPC分类号： B21B13/14 ,  B21B29/00 ,  B21B37/38

    CPC分类号： B21B29/00 ,  B21B13/14 ,  B21B37/38

    摘要： The present invention has as its task to be able to impart a high response crown/shape control function to a rolling mill with a response of decrease bending devices inferior to increase bending devices even under conditions causing a decrease roll bending force to act. To achieve this task, before the start of rolling, both the increase bending force and the decrease bending force are made to act and the composite force constituted by a roll bending force which corresponds to the roll balance force is made to act on a work roll chock. At the time of the start of rolling, the decrease bending force is held at a constant value while the increase bending force is made to change and a composite force constituted by a predetermined roll bending force (decrease bending force) is made to act on the work roll chock for rolling. At the time of the end of rolling, the increase bending force is returned to the state before the start of rolling and a composite force with the decrease bending force constituted by the roll bending force corresponding to the roll balance force is made to act on the work roll chock. In that state, the rolling is ended.