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    ROLLING MILL THIRD OCTAVE CHATTER CONTROL BY PROCESS DAMPING
    4.
    发明授权
    ROLLING MILL THIRD OCTAVE CHATTER CONTROL BY PROCESS DAMPING 有权

    公开(公告)号：EP3171995B1

    公开(公告)日：2018-07-11

    申请号：EP15745042.0

    申请日：2015-07-15

    申请人： Novelis Inc.

    发明人： BROWN, Rodger

    IPC分类号： B21B37/00

    CPC分类号： B21B37/007 ,  B21B1/22 ,  B21B13/02 ,  B21B35/00 ,  B21B38/008 ,  B21B38/06 ,  B21B38/08 ,  B21B2203/44 ,  B21B2265/06 ,  B21B2265/12

    摘要： Control of third octave vibrations in a mill stand can be achieved using a high-speed piezoelectric assist coupled to a hydraulic gap cylinder to increase the damping of the roll stack. Vertical movements of the roll stack (e.g., the top work roll) can be determined through observation (e.g., measurement) of hydraulic fluid pressure of the hydraulic cylinder or entry tension of the metal strip. After determining vertical movements of the roll stack, a desired change in hydraulic pressure can be determined to overcome, reduce, or prevent third octave vibration. This desired change in hydraulic pressure can be effectuated at high speeds (e.g., at or above approximately 90 hertz) using the piezoelectric assist.

    PROCESS DAMPING OF SELF-EXCITED THIRD OCTAVE MILL VIBRATION
    7.
    发明公开
    PROCESS DAMPING OF SELF-EXCITED THIRD OCTAVE MILL VIBRATION 审中-公开
    自激振荡第三代八角磨机振动的过程阻尼

    公开(公告)号：EP3169460A1

    公开(公告)日：2017-05-24

    申请号：EP15745650.0

    申请日：2015-07-15

    申请人： Novelis Inc.

    发明人： BROWN, Rodger ,  SEIBERT, Matthew ,  MILLER, Donald L. ,  FAIRLIE, Matthew ,  GAENSBAUER, David

    IPC分类号： B21B37/48 ,  B21B38/06 ,  B21B39/08

    CPC分类号： B21B37/48 ,  B21B1/22 ,  B21B38/06 ,  B21B39/082 ,  B21B2203/44

    摘要： Control of self-excited third octave vibration in a metal rolling mill can be achieved by adjusting the tension of the metal strip as it enters a stand. Self-excited third octave vibration can be detected and/or measured by one or more sensors. A high-speed tension adjustor can rapidly adjust the entry tension of the metal strip (e.g., as the metal strip enters a mill stand) to compensate for the detected self-excited third octave vibration. High-speed tension adjustors can include any combination of hydraulic or piezoelectric actuators coupled to the center roll of a bridle roll to rapidly raise or lower the roll and thus induce rapid tension adjustments in the strip. Other high-speed tension adjustors can be used.

    摘要翻译： 通过调整金属带进入支架时的张力，可以控制金属轧机中的自激式三次八度振动。 自激的三分之一倍频程振动可以由一个或多个传感器检测和/或测量。 高速张力调节器可快速调节金属带的入口张力（例如，当金属带进入轧机机座时）以补偿检测到的自激的第三八度音阶振动。 高速张力调节器可以包括任意组合的液压或压电致动器，它们连接在张紧辊的中心辊上，以快速升高或降低辊，从而引起带材中的快速张力调节。 其他高速张力调节器也可以使用。