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无缝钢管的轧制变形区作为轧制过程的工作界面,其动力学特性对连轧管机的轧制振动有决定性影响.分析了动态情况下轧制界面上的界面摩擦、轧制变形规律、轧辊运动等行为机理及其耦合特性,建立了轧制界面的动力学模型,通过模型研究轧制工艺参数与轧制力能参数的关系,分析了连轧管机的自激振动发生的原因,并用数值模拟方法分析了在不同轧制条件下的轧制变形区的工艺参数与连轧管机的自激振动关系,为解释连轧管机的自激振动机理提供理论基础.
As the working interface of the rolling process, the rolling deformation zone of the seamless steel pipe has a decisive influence on the rolling vibration of the continuous rolling mill. The interface friction and rolling deformation under the dynamic condition are analyzed , Roll motion and its coupling mechanism, the dynamic model of the rolling interface was established. The relationship between the rolling parameters and the rolling force energy parameters was studied through the model. The reason of the self-excited vibration of the continuous rolling mill was analyzed The relationship between the process parameters and the self-excited vibration of the continuous rolling mill was analyzed by numerical simulation method under different rolling conditions, which provided a theoretical basis for explaining the self-excited vibration mechanism of the continuous rolling mill.