金刚石与磨料磨具工程2011，Vol.31Issue(5)：44-47,4.DOI:10.3969/j.issn.1006-852X.2011.05.010
分层-环槽式热压金刚石钻头应用研究
Study on application of hot-pressed diamond bit with layered ring-groove matrix
王恒 1龚宏伟 2杨凯华3
作者信息
- 1. 中国地质大学研究生院,武汉430074
- 2. 河南省亚龙金刚石制品有限公司,郑州450001
- 3. 核工业267地质队,九江332000
- 折叠
摘要
Abstract
Hot-pressed diamond bit with homogeneous type of bottom surface has been used for many years. With this type of diamond bit, all the rocks in bottom hole are crushed by diamond grits, which not only demands high diamond concentration but also brings about the restricted utilization rate of diamond grits as well as low drilling efficiency. A new type of hot-pressed diamond bit with layered ring-groove matrix has been investigated herein. The bit is composed of two working layers with and without diamond grits. The former layer is the main body for cutting rock while the latter mechanically cuts rock by using the bit's vibration from both radial and axial directions as well as the broken cave effects. The designed bit can increase the stability during drilling process; reduce the abnormal wear of diamond bit; raise the utilization rate of diamond grits and drilling effects. The drilling experiments also indicate the promising aspect of the new diamond bit.关键词
分层-环槽式钻头/破碎穴效应/稳定性Key words
bit with layered ring-groove matrix structure/ broken cave effects/ stability分类
矿业与冶金引用本文复制引用
王恒,龚宏伟,杨凯华..分层-环槽式热压金刚石钻头应用研究[J].金刚石与磨料磨具工程,2011,31(5):44-47,4.
