Ring Rolling; the Inclusion of Pressure Roll Speed for Estimating Torque by Using a Velocity Superposition Method-猫眼课题宝

DOI：

10.1007/978-1-349-81247-9_3

发表时间：

1984

期刊：

影响因子：

通讯作者：

中科院分区：

其他

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作者：

J. Ryoo;D. Yang;W. Johnson

— 当考虑环轧中压力辊的挤压速度时，应使用双速度场来更准确地计算驱动辊所需提供的扭矩的上限。本文通过将挤压速度分量叠加到由从动辊引起的被轧环的纵向速度分量上，推导了理论上允许的速度场。必要扭矩的上限低于参考文献/8/中获得的上限，这是基于所提出的双速度场获得的。当压制速度不小时，如环粗轧阶段的情况，其对扭矩的影响不可忽略。将计算结果与实验数据进行比较，结果表明，所提出的双速度场确实比忽略压力辊的 Dressina 速度的方法更好地预测了辊扭矩。紧迫

— When the pressing velocity of the pressure roll in ring rollinq is considered, dual velocity fields should be used to more accurately calculate an upper-bound to the torque required to be supplied by the driving roll A kmematically admissible velocity field is derived in this paper by super-posmg the pressing velocity components onto the longitudinal velocity components of the ring being rolled as induced by the driven roll. An upper-bound lower than that obtained in ref /8/ for the necessary torque is obtained on the basis of the proposed dual velocity field. When the pressing velocitv is not small as is the case in the stage of coarse ring rolling its effect on the torque is not negligible. The computed results are compared with the experimental data and it is shown that the proposed dual velocity field does indeed better predict the roll torque than does that which neglects the Dressina velocity of the pressure roll. pressing

Ring Rolling; the Inclusion of Pressure Roll Speed for Estimating Torque by Using a Velocity Superposition Method

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