DEVICE AND METHOD FOR ROLLING A METAL STRIP
    1.
    发明公开

    公开(公告)号:US20230356278A1

    公开(公告)日:2023-11-09

    申请号:US18246086

    申请日:2021-09-09

    Applicant: SMS GROUP GMBH

    CPC classification number: B21B37/62 B21B1/22

    Abstract: A device and a method for rolling a metal strip. A distance of the upper/lower backup roll at at least one point thereof from a predetermined upper/lower reference point is measured by an upper/lower sensor and the measured values of the sensors are sent to a control device. A strain of the roll stand is calculated using a mathematical model, taking into account the rolling force generated. By the control device, an absolute value of the roll gap and thus the resulting thickness of the rolling stock is determined by the control device on the basis of the measured positions of the backup rolls and the calculated strain of the roll stand.

    Method and device for guiding and centering a metal rolling stock in a rolling mill

    公开(公告)号:US20240165684A1

    公开(公告)日:2024-05-23

    申请号:US18282127

    申请日:2022-01-17

    Applicant: SMS group GmbH

    CPC classification number: B21B37/005

    Abstract: A method and a device for guiding and centering a metallic rolling stock in a rolling mill having at least one assembly that is arranged in a rolling line and at least one rolling mill stand for shaping the rolling stock are disclosed. The method includes the use of lateral guide means, which exert a lateral force onto the moving rolling stock at different locations of the rolling line, wherein the method further includes the process of centering the inflow of the rolling stock ahead of a first assembly and/or ahead of a first rolling mill stand of the rolling mill using first lateral guide means and the process of aligning rolling stock downstream transversely to the rolling line using second lateral guide means, wherein the process of centering the inflow includes a funnel-shaped, flat guiding of the rolling stock and a point-shaped guiding of the rolling stock.

    Flatness-measuring device, hot-rolling mill and method for operating a flatness-measuring device

    公开(公告)号:US20230311182A1

    公开(公告)日:2023-10-05

    申请号:US18023582

    申请日:2021-08-12

    Applicant: SMS group GmbH

    CPC classification number: B21B38/02 B21B37/68 B21B2273/04

    Abstract: A flatness-measuring device for a hot-rolled strip within a hot-rolling mill includes an entry-side deflection roller and an exit-side deflection roller. A central deflection roller is arranged between the entry-side deflection roller and the exit-side deflection roller. The central deflection roller is used as a flatness-measuring roller. To prevent the hot-rolled strip from departing laterally during a flatness measurement, the flatness-measuring device has a sensing apparatus for sensing an actual position of the hot-rolled strip. An adjusting apparatus is connected to the sensing apparatus and to at least one of the deflection rollers. The flatness-measuring device is designed to vary an angle between a longitudinal central axis of the deflection roller respectively connected to the adjusting apparatus and a longitudinal axis of the flatness-measuring device based on a deviation of the actual position of the hot-rolled strip from a predefined target position.

    Stabilization of the rolled product during opening and/or closing of a roll stand

    公开(公告)号:US20230405655A1

    公开(公告)日:2023-12-21

    申请号:US18251705

    申请日:2021-10-04

    Applicant: SMS group GmbH

    Abstract: A rolling mill stand has two working rolls forming a roll gap in which a rolled product transported in a conveying direction can be formed. The positioning of at least one working roll is variable in a plane perpendicular to the conveying direction. The rolling mill is used in a method which comprises: conveying the rolled product through the roll gap in the conveying direction and at the same time opening or closing the rolling mill stand by correspondingly increasing or decreasing the roll gap; during opening or closing of the roll stand, detecting a position of the rolled product in front of and/or behind the roll gap in the direction transverse to the conveying direction; and changing the positioning of the corresponding working roll depending on the detected position, so that the rolled product is stabilized at a target position during opening or closing of the roll stand.

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