rolling rate oscillation 滚转速率振荡
rolling angular velocity oscillation 滚转速率振荡
torsional oscillation of rolling mills 轧机扭振
·2,447,543篇论文数据，部分数据来源于NoteExpress
The main reasons of the edge cracking are: expanding of horizontal cracks (including deep oscillation imprint) and fine vertical cracks of cast blank during reheating and hot rolling;
板卷产生边部裂纹的主要原因是：连铸坯表面边部横裂纹（包括深的振痕）和边部的细小纵裂纹，在加热和轧制过程中不断扩展；
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