On the other hand, when the roller works, self-excited vibration may arise sometimes, torque amplification factor (TAF) increases, the part may be spoiled and roll steel surface quality can be affected badly.

• 另外,轧机在轧制时,主传动系统有时会发生自激振动,扭矩放大系数TAF增大,造成零件损坏,也严重影响轧件表面质量。