道次压下量,pass reduction
reduction per pass每道次压下量
3)the first press quantity首次压下量
1.The influences of the clearance in unidirectional cutting andthe first press quantity in bi-directional cutting to the tube quality have been studied.介绍了GCr15厚壁管材的两种剪切方法 ,研究了单向剪切时间隙对剪切质量的影响和双向剪切时首次压下量对剪切质量的影响 ,分析了管材的剪切机
2.This paper makes a etudy of the double-directional cutting of the GCr15 tube with core rod,especially the influence ofthe first press quantity on the cutting quality.研究了带芯棒的GCr15轴承钢管的双向剪切方法,尤其是首次压下量对剪切品质的影响;对实验结果进行了分析,并在此基础上,对双向剪切法进行了改进,得到了较好的断面品质。
4)reduction per pass每道压下量
5)finishing pass heavy drought末道次大压下
1.A new process offinishing pass heavy drought was researched to enhance finished property of the micro-carbon deep-drawing sheet,experimental results show that the new process refines hot rolled grain obviously and advances the formation of cold rolled texture 〈111〉 greatly,thus enhances the cold rolling property(IE,n,r) remarkably.对微碳深冲板进行末道次大压下率轧制的新工艺试验研究以期提高其成品性能。
6)Pass screwdown factor method道次压下系数法
延伸阅读
东京次新安道中【诗文】：贼去兵来岁月长，野蒿空满坏墙匡。旋从古辙成深谷，几见金舆过上阳。洛水送年催代谢，嵩山擎日拂穹苍。殊时异世为儒者，不见文皇与武皇。【注释】：【出处】：全唐诗：卷709-10
