扩孔钻

机夹扩孔钻的设计与应用

The Design and Application of Mechanically Fixed Counterbore Drill

扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）Tresca材料球形腔体扩张衬砌问题的弹塑性解

To form , shape , taper , or enlarge ( a hole ) with or as if with a reamer . The Elasto-plastic Solution to the Problem of Expansion Lining in Spherical Cavity with Tresca Materials

硬质合金焊接式锥柄扩孔钻滚柱轴承锥形牙轮钻头

Carbide welded taper shank core drill cone type roller bearing rock bit

镍-钛合金机用扩孔钻预备阻塞根管效果

Application of Ni-Ti elastic engine-driven file in the preparation of obstruction root canals

扩孔钻和锥管丝锥复合刀具

Combined taper pipe tap and core drill

本实用新型是一种扩孔钻套，属于加工刀具。

The utility model relates to a hole enlarging drill bushing , which belongs to a processing knife tool .

不同孔隙度多孔钛种植体对骨整合影响的研究扩，整用扩孔钻或仿佛是用扩张钻去造出、成形出、整出或扩大（某个孔）

The Study of the Effect on Osseointegration of Different Porosity Titanium Implants ; To form , shape , taper , or enlarge ( a hole ) with or as if with a reamer .

用迈步式扩孔刀头钻凿天井是一项新技术，该技术能够用小钻机钻凿大天井。

The use of sequential reaming head for raising is a new technology , which can make a small-sized drill to be used for boring a large-sized raise .

利用扩孔方法提高侧钻小眼井的固井质量

Improve the cementing quality of sidetracking slim hole by reaming

为解决该问题，提出使用微台阶扩孔技术将侧钻小井眼窄间隙固井转化为宽间隙常规固井，同时加大水泥环厚度，提高固井质量，延长侧钻井寿命。

In order to solve this problem , micro - step hole enlargement technology is proposed to change narrow clearance cementing to wide clearance cementing , and the thickness of cement sheath is increased to improve cementing quality and the life of side - tracking wells .