本文中的“大压下量”一词指的是被轧制材料仅经过一个道次的轧制厚度大大减小,而横截面减小60%以上。这种大的压下量是通过周期性轧机辊缝的变化,从而在轧件上施加一个递增的压下量而产生的。大压下量轧机总的来说可分为行星式轧机和摆式轧机,这两种轧机都不能自动咬入轧件,因而在整个轧制过程中需要一个送料装置将轧件连续不断地送入辊缝。目前世界上已有几 The term “mass reduction” in this paper refers to the fact that the thickness of the rolled material after one pass reduces greatly and the cross-sectional area decreases by more than 60%. This large reduction is achieved by applying a progressive reduction in the rolling stock through the variation of the periodic mill roll gap. In general, the rolling mill can be divided into planetary mill and tilting mill, both of which can not automatically bite into the rolling, so in the entire rolling process requires a feeding device will continue to send rolling Into the roll gap. There are already several in the world