金刚石与磨料磨具工程2017，Vol.37Issue(2)：16-19,25,5.DOI:10.13394/j.cnki.jgszz.2017.2.0004
Fe质量分数对金刚石钻头胎体及钻进性能的影响研究
Effect of Fe mass fraction on diamond bit's matrix and drilling properties
摘要
Abstract
Fe-Cu matrix formulas were designed to research the effect of Fe mass fraction on diamond drill bit's matrix and drilling properties.Hardness,relative density and three-point bending strength of different formulas' sintered samples were analyzed.The fracture appearances of these sintered samples were investigated by SEM.The drilling efficiency and service life of different formulas' drill bits were analyzed by drilling simulations.The results show that each formula's sample can be well sintered,and that their relative density can reach up to more than 98％ of theoretical density.The hardness increases first,and then decreases while Fe mass fraction increases.The hardness tends to be steady when the mass fraction of Fe increases to more than 45％,and it reaches the maximum as 35HRC at 60％ Fe.The three-point bending strength result shows that it does not change obviously but in a small range.The fracture appearance SEM shows that the toughness decreases and the diamond etching effect aggravates while Fe mass fraction increases.Drilling simulations show that the 30 ％ Fe formula sample perform better,both in drilling efficiency and service life,when drilling 6 to 8 level drill ability stratum.关键词
配方设计/金刚石钻头/力学性能/断口形貌/钻进性能Key words
formula design/diamond bit/mechanical property/fracture appearance/drilling property分类
化学化工引用本文复制引用
潘晓毅,苏钰,谢德龙,林峰,肖乐银,陈超,秦建新,彭少波,陈家荣..Fe质量分数对金刚石钻头胎体及钻进性能的影响研究[J].金刚石与磨料磨具工程,2017,37(2):16-19,25,5.基金项目
桂林科学研究与技术开发计划项目(项目编号:20150105-1) （项目编号:20150105-1）
