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    Rolling mill third octave chatter control by process damping
    3.
    发明授权
    Rolling mill third octave chatter control by process damping 有权

    公开(公告)号：US10065225B2

    公开(公告)日：2018-09-04

    申请号：US14800221

    申请日：2015-07-15

    申请人： Novelis Inc.

    发明人： Rodger Brown

    IPC分类号： B21B38/08 ,  B21B37/00 ,  B21B38/00 ,  B21B38/06 ,  B21B1/22 ,  B21B13/02 ,  B21B35/00

    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
    4.
    发明申请
    PROCESS DAMPING OF SELF-EXCITED THIRD OCTAVE MILL VIBRATION 审中-公开
    自激三次振动的过程阻尼振动

    公开(公告)号：US20160016215A1

    公开(公告)日：2016-01-21

    申请号：US14800074

    申请日：2015-07-15

    申请人： NOVELIS INC.

    发明人： Rodger Brown ,  Matthew Seibert ,  Donald L. Miller ,  Matthew Fairlie ,  David Gaensbauer

    IPC分类号： B21B37/48 ,  B21B38/06 ,  B21B38/10 ,  B21B1/22

    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： 可以通过在金属带进入支架时调节金属带的张力来实现金属轧机中自激三次倍频振动的控制。 可以通过一个或多个传感器来检测和/或测量自激的第三倍频程振动。 高速张力调节器可以快速地调整金属带的进入张力（例如，当金属带进入轧机架时）以补偿检测到的自激三次倍频程振动。 高速张力调节器可以包括耦合到襟翼辊的中心辊的液压或压电致动器的任何组合，以快速升高或降低辊，从而在带中引起快速的张力调节。 可以使用其他高速张力调节器。