1) the small drill head cleaning cinder method
小钻头清渣法
1.
According to analysis of an accident of drilling tools which were buried in the bottom of a 107 meters deep pore, authors introduce measures adopted in this accident, direct reasons causing this accident, and three adopted fishing methods, which are air-vibrate hammer method, high-pressure water method, and the small drill head cleaning cinder method.
通过对某工程发生钻具隐埋在107m水深的孔底的案例分析,分别介绍了事故发生时所采取的措施、分析事故发生的最直接的原因以及所采用过的打捞方法—气动锤振动法、高压注水法和小钻头清渣法,并将这3种方法在打捞中所起的作用及其适用范围作了分析和比较。
2) paraffin bit
清蜡钻头
3) micro-drill
微小钻头
1.
A kind of on-line monitoring method is put forward for micro-drill breakage.
本文提出了一种基于小波分析的微小钻头折断的在线监测方法,得出微小钻头折断时的力信号呈现大幅度增长的趋势,并利用小波分解代替传统的傅立叶变换进行信号分析,来准确识别钻头的正常钻削与破损状态,从而获取钻头折断的预报,实验结果证明了该方法的有效性。
4) small flat drill bit
小扁钻头
1.
We proposed the themethod which changing small flat drill bit,drilling the center bore,improving edge shape,selecting appropriate cutting speed and enters for the quantity and so on.
针对小直径深孔加工时常见的棘手现象,通过对切削速度、切削力和走刀量等因素的分析,结合生产实际,提出了改制小扁钻头、预钻中心孔、改善刃形、选取合适的切削速度和走刀量等方法,以解决小直径深孔加工困难的问题。
5) a small drill bit
小钻头
1.
According to the cause of its wear and tear, some advice on the design and make of a small drill bit is presented in the paper.
在机械制造中 ,小钻头容易破损。
6) micro drill
微小钻头
1.
This paper studies distribution law of the limit value of micro drill drilling torque for the first time.
首次对微小钻头钻削扭矩极限值的分布规律进行了研究，在本文的试验条件下得到了扭矩极限值服从三参数威布尔分布的结论。
2.
Theoretical and experimental study on the reliability of micro drill is carried out.
首次对微小钻头可靠性进行了理论和试验研究。
补充资料：干渣渣
1.缺乏水分而呈渣屑的样子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条