CONTACTLESS LOOPER FOR METAL PROCESSING AND RELATED METHODS

    公开(公告)号:US20240216971A1

    公开(公告)日:2024-07-04

    申请号:US18555147

    申请日:2022-03-24

    Applicant: NOVELIS INC.

    CPC classification number: B21B41/10 B21B45/004 B21B2273/02

    Abstract: A contactless looper for a metal substrate includes an entrance, an exit, and at least one deflection device between the entrance and the exit. The contactless looper is configured to receive a metal substrate moving in a processing direction from the entrance to the exit and impart a deflection along the processing direction in a metal substrate such that a position of the metal substrate at the at least one deflection device is vertically offset from a height of the metal substrate at the entrance of the looper. A method of processing a metal substrate with the contactless looper includes receiving the metal substrate at the entrance of the contactless looper along a passline, imparting a deflection in the metal substrate with the looper, and passing the metal substrate out the exit of the contactless looper.

    Hot strip mill controller
    3.
    发明授权
    Hot strip mill controller 有权
    热轧机控制器

    公开(公告)号:US09411324B2

    公开(公告)日:2016-08-09

    申请号:US13910484

    申请日:2013-06-05

    CPC classification number: G05B13/02 B21B37/50 B21B2265/06 B21B2273/02

    Abstract: The present invention provides a method of controlling the height of a looper in an inter-stand section of a hot strip mill that overcomes the problem of looper instability due to looper inertia without the need for the controller of upstream rollers to have a reduced gain. The inter-stand section of the hot strip mill comprises a pair of upstream rollers driven by a main motor and a looper driven by a looper motor. The method comprises the steps of: calculating a desired speed trim to be applied by the main motor; estimating the inertia of the looper; calculating a torque necessary to overcome the inertia of the looper from the speed trim, the estimated inertia of the looper and a sensitivity calculated from the geometry of the looper; and controlling the main motor to apply the speed trim to the upstream rollers and controlling the looper motor to apply the calculated torque to the looper.

    Abstract translation: 本发明提供了一种控制热轧带钢轧机的机架间的弯针的高度的方法,其克服了由于弯针惯性引起的弯针不稳定性的问题,而不需要上游辊的控制器具有减小的增益。 热轧带钢轧机的支架间部分包括由主电动机驱动的一对上游辊和由弯针马达驱动的弯针。 该方法包括以下步骤:计算由主电机施加的期望速度调整; 估计活套的惯性; 计算从速度修剪中克服弯针的惯性所必需的扭矩,弯针的估计惯性和由弯针的几何形状计算出的灵敏度; 并且控制主电动机将速度调整装置施加到上游辊子上,并控制活套电动机将计算的扭矩施加到活套器。

    Process for producing hot-rolled steel strip and apparatus therefor
    5.
    发明授权
    Process for producing hot-rolled steel strip and apparatus therefor 有权
    生产热轧钢带的方法及其设备

    公开(公告)号:US07448244B2

    公开(公告)日:2008-11-11

    申请号:US10517170

    申请日:2003-08-20

    CPC classification number: B21B39/00 B21B39/12 B21B45/0218 B21B2273/02

    Abstract: The present invention relates to a production method for a hot rolled strip in a hot rolling line. An object of the present invention is to ensure stable running of a hot rolled strip on a hot runout table, and to prevent excessive displacement of the hot rolled strip above a pass line, and, for example, a head folding defect and a tail folding defect resulting from the displacement. In the method of the present invention, a fluid jet is squirted above a hot rolled strip conveyed by a hot runout table so as to pass over the hot rolled strip running without touching a surface of the hot rolled strip running on a pass line (a strip-conveying surface of the hot runout table). A strip portion displaced upward from the pass line beyond a predetermined level collides with the fluid jet, and the displacement of the strip portion is thereby corrected. Since the fluid jet passes over the normally running hot rolled strip without touching therewith, the strip portion is properly prevented from being displaced by squirting the fluid jet.

    Abstract translation: 本发明涉及热轧生产线中的热轧带材的制造方法。 本发明的一个目的是确保热轧带材在热流道台上的稳定运行,并且防止热轧带材在通过线之上的过度位移,例如头部折叠缺陷和尾部折叠 由于位移造成的缺陷。 在本发明的方法中,将流体射流喷射在由热流道台传送的热轧带材上方,以便在不接触在通行线上运行的热轧带材的表面(a 热流失表的带状输送表面)。 从通过线向上偏移超过预定水平的条带部分与流体射流碰撞,从而校正条带部分的位移。 由于流体射流通过正常运行的热轧带材而不与其接触,因此通过喷射流体射流适当地防止带状部分被移位。

    Process for producing hot-rolled steel strip and apparatus therefor
    6.
    发明申请
    Process for producing hot-rolled steel strip and apparatus therefor 有权
    生产热轧钢带的方法及其设备

    公开(公告)号:US20060010951A1

    公开(公告)日:2006-01-19

    申请号:US10517170

    申请日:2003-08-20

    CPC classification number: B21B39/00 B21B39/12 B21B45/0218 B21B2273/02

    Abstract: The present invention relates to a production method for a hot rolled strip in a hot rolling line. An object of the present invention is to ensure stable running of a hot rolled strip on a hot runout table, and to prevent excessive displacement of the hot rolled strip above a pass line, and, for example, a head folding defect and a tail folding defect resulting from the displacement. In the method of the present invention, a fluid jet is squirted above a hot rolled strip conveyed by a hot runout table so as to pass over the hot rolled strip running without touching a surface of the hot rolled strip running on a pass line (a strip-conveying surface of the hot runout table). A strip portion displaced upward from the pass line beyond a predetermined level collides with the fluid jet, and the displacement of the strip portion is thereby corrected. Since the fluid jet passes over the normally running hot rolled strip without touching therewith, the strip portion is properly prevented from being displaced by squirting the fluid jet.

    Abstract translation: 本发明涉及热轧生产线中的热轧带材的制造方法。 本发明的一个目的是确保热轧带材在热流道台上的稳定运行,并且防止热轧带材在通过线之上的过度位移,例如头部折叠缺陷和尾部折叠 由于位移造成的缺陷。 在本发明的方法中,将流体射流喷射在由热流道台传送的热轧带材上方,以便在不接触在通行线上运行的热轧带材的表面(a 热流失表的带状输送表面)。 从通过线向上偏移超过预定水平的条带部分与流体射流碰撞,从而校正条带部分的位移。 由于流体射流通过正常运行的热轧带材而不与其接触,因此通过喷射流体射流适当地防止带状部分被移位。

    HOT STRIP MILL CONTROLLER
    10.
    发明申请
    HOT STRIP MILL CONTROLLER 有权
    热条磨机控制器

    公开(公告)号:US20130331977A1

    公开(公告)日:2013-12-12

    申请号:US13910484

    申请日:2013-06-05

    Inventor: Aleksandar Mecev

    CPC classification number: G05B13/02 B21B37/50 B21B2265/06 B21B2273/02

    Abstract: The present invention provides a method of controlling the height of a looper in an inter-stand section of a hot strip mill that overcomes the problem of looper instability due to looper inertia without the need for the controller of upstream rollers to have a reduced gain. The inter-stand section of the hot strip mill comprises a pair of upstream rollers driven by a main motor and a looper driven by a looper motor. The method comprises the steps of: calculating a desired speed trim to be applied by the main motor; estimating the inertia of the looper; calculating a torque necessary to overcome the inertia of the looper from the speed trim, the estimated inertia of the looper and a sensitivity calculated from the geometry of the looper; and controlling the main motor to apply the speed trim to the upstream rollers and controlling the looper motor to apply the calculated torque to the looper.

    Abstract translation: 本发明提供了一种控制热轧带钢轧机的机架间的弯针的高度的方法,其克服了由于弯针惯性引起的弯针不稳定性的问题,而不需要上游辊的控制器具有减小的增益。 热轧带钢轧机的支架间部分包括由主电动机驱动的一对上游辊和由弯针马达驱动的弯针。 该方法包括以下步骤:计算由主电机施加的期望速度调整; 估计活套的惯性; 计算从速度修剪中克服弯针的惯性所必需的扭矩,弯针的估计惯性和由弯针的几何形状计算出的灵敏度; 并且控制主电动机将速度调整装置施加到上游辊子上,并控制活套电动机将计算的扭矩施加到活套器。

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