异步交叉轧制的轴向力研究

为阐明异步交叉轧制的轴向力特性，在自行研制的首架异步交叉轧机上进行了系统的实验研究。结果表明：在轧制过程中，支承辊和工作辊轴向皆呈非线性增长态势，且工作辊轴向力波形起伏较大，其起始时刻滞后于支承辊；交叉角和异步比等因素对工作辊轴向力Ｆａｗ的的影响规律为交叉角增大，ＦＡＷ增大，当交叉角大于临介交叉角以后，ＦＡＷ下降、ＦＡＷ随异步比增大而略有增加，在异步交叉轧制下，轧制运行无跑偏。

Research of Axial Thrust Force during Asymmetric and Cross Rolling

In order to expound the axial thrust characteristics of asymmetric and cross rolling, a systematic experiment has been performed on the first AC mill developed by ourselves. The results indicate, in the process of rolling, the axial thrust force of both backup roll and working roll increases unlinearly, and the axial thrust force of working roll has larger undulating waves, which beginning time is later than that of backup roll. The experimental study of the influence of cross angle, speed ratio and others on the axial thrust force of work roll F AW shows: with the increasing cross angle , F AW increases, after cross angle reaches the critical value, F AW drops; with the increasing of speed ratio, F AW increases. In the process of AC rolling no leaning is observed.