为了提高钻头的寿命，提出了将制作金刚石增强型硬质合金复合齿的工艺、配方应用到制作孕镶金刚石钻头的设计思路。
In order to improve bit life span this paper puts forward a thought of using the techniques and formulas of making diamond enhanced tungsten carbide composite button to make impregnated diamond bit.
介绍了测定孕镶金刚石取心钻头各向异性指数的实验方法。
The experimental apparatus and methods for determining the anisotropic index of a diamond impregnated bit were introduced.
研制出一种两级磨料新型孕镶金刚石钻头，该种钻头解决了时效与寿命不能同步提高这一长期困扰钻头研制者的难题。
A new type of impregnated diamond bit with two sorts of diamond abrasives has been developed, which can improve both penetration rate and service life simultaneously.
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