摘要
将仿生学的非光滑原理应用到孕镶金刚石钻头的设计中，研制出新型的仿生孕镶金刚石钻头，比普通金刚石钻头钻进时效提高了30％～80％。仿生钻头破碎岩石后岩粉的颗粒比普通钻头破碎的岩粉颗粒大，可节省能量消耗，提高破碎效率；仿生非光滑表面使得钻头唇面的比压增加，有利于钻头的锐化，从而提高了时效；另外非光滑表面改善了钻头和岩石的冷却条件，因此提高了金刚石钻头的钻进效率。
A new type of impregnated diamond bionics bit is developed by applying the bionics nonsmooth theory to the bit design. Its drilling efficiency increases 30 % to 80% compared with the ordinary bits. The size of rock dust particles crushed by bionics bits is larger than that broken by ordinary bits. The bionic non-smooth surface increases the specific pressure of the bit＇s crown and also ameliorates the cooling conditions between the bit and rock. So it improves the drilling efficiency of diamond bits.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2008年第6期1015-1019,共5页
Journal of Jilin University：Earth Science Edition
基金
国家“863”项目(2006AA06Z221)
关键词
金刚石钻头
仿生
孕镶
碎岩机理
非光滑
diamond bit
bionics
impregnated
rock fragmentation mechanism
non-smooth
