公开(公告)号：US6371197B2

公开(公告)日：2002-04-16

申请号：US78431801

申请日：2001-02-14

Applicant: SMS DEMAG AG

Inventor： WEYER AXEL ,  VON WYL HORST

IPC: B22D11/16 ,  B22D11/04 ,  B22D11/128 ,  B22D11/20

CPC classification number: B22D11/0405

Abstract: In a method for casting prefabricated products in a continuous casting device, having a casting mold and a strand guide downstream of the casting mold, wherein the strand guide has rolls positioned opposite one another in pairs for supporting and guiding the solidifying cast strand. The motor torques of the drives are maintained at a level as equal as possible below a permissible torque limit value relative to a loadability of the strand shell. For a single drive and corresponding drive roll the permissible torque limit value is measured by continuously increasing the drive torque starting at zero and monitoring the rotational speed of the drive roll, while the remaining drive rolls are controlled to a preset nominal casting speed. For a superproportional increase of the rotational speed, the torque limit value is determined and the process is stopped.

Abstract translation: 在用于在连续铸造装置中铸造预制产品的方法中，在铸模的下游具有铸造模具和股线引导件，其中股线导向器具有成对相对定位的辊，用于支撑和引导固化铸造股线。 驱动器的电机转矩相对于绞线壳的负载能力保持在尽可能低于允许转矩极限值的水平。 对于单个驱动器和相应的驱动辊，允许的扭矩极限值通过连续增加从零开始的驱动扭矩并监视驱动辊的转速来测量，而剩余的驱动辊被控制到预设的标称铸造速度。 对于转速的超比例增加，确定转矩极限值并停止过程。