offset cone bit [油气] 移轴牙轮钻头
core cone bit 牙轮取心钻头
three-cone bit 三牙轮钻头
roller cone bit 牙轮钻头
double-cone bit 双牙轮钻头
cone bit design layout 牙轮钻头啮合图
tri-cone bit 三牙轮钻头
coring cone bit 牙轮取心钻头
steel-tooth cone bit 钢齿牙轮钻头
The complex layers are compacted and well-proportioned,the shear strength of which is 625 MPa and wear value is reduced by 10%～70%. The complex layers prolong the working life of steel tooth roller cone bit.
研究表明:金刚石经过金属化处理后表面具有一定的金属性和浸润性,通过一定堆焊工艺在钢齿牙轮钻头齿面形成了组织致密均匀、硬质点与基体熔合良好的强化层,其抗剪强度达到了625MPa,磨损量减少了10%～70%,延长了钻头的使用寿命。
参考来源 - 钢齿牙轮钻头齿面强化复合堆焊实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A method of determining the load on journal bearing of three-cone bit is described in this paper.
本文阐述了三牙轮钻头滑动轴承载荷的测试方法。
As a result it is necessary to design new type of one-cone bit according to the quality of the rock.
因此应针对不同性质的岩石设计符合其破岩特点的单牙轮钻头。
The experiential ratio of optimum combination of three nozzles on tri cone bit is obtained based on many field experiments.
通过大量的现场试验，得出三牙轮钻头三喷嘴优化组合的经验比值。
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