两级磨料新型孕镶金刚石钻头

A New Type of Impregnated Diamond Bit with Two Grades of Abrasives

摘要:

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。现场应用证实了这种新型钻头的优越性，钻头综合指标较一般钻头提高１７９％。

Abstract:

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. Field drilling experiments have verified the advantages of the new bits, and the all round performance index of the new bits increased 179% compared with that of the traditional bits.