环件轧制过程中宽展的研究

• 作 者: 许思广\\r\\r\\r\\r\\r\\r\\r\\r\\n 王海文\\r\\r\\r\\r\\r\\r\\r\\r\\n 李国祯
• 出 处: 太原重型机械学院学报
• 发表日期: 1988年03期
• 关键词: 环件 流函数 轧制条件 表面形状 环轧 摩擦功率 变形区 待定系数 变分原理 轧制力矩

本文讨论了流函数的特性,用流函数在直角坐标系下构造了满足移态轧制条件的三维速度场,考虑芯辊轴承摩擦功率,根据变分原理采用直接寻找待定系数的手段,较为精确地分析了环件的宽展及测表面形状的变化规律,理论结果得到了实验验证.

In this paper, the characteristics of the flow function are discussed. The three-dimensional velocity field which satisfies the conditions of the transitional rolling is constructed by the flow function in the Cartesian coordinate system. Considering the frictional power of the core roller bearing, the method of directly finding the undetermined coefficient according to the variational principle is more accurate Analyzed the widening of the ring and measured the change of surface shape, the theoretical results have been verified by experiments.