Effect of single size diamond on drilling performance of the Fe-Cu-based bit
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摘要: 在某Fe-Cu基钻头配方中分别配以相同浓度、不同粒度及相同粒度、不同浓度的金刚石制作钻头,对比研究金刚石粒度、浓度对Fe-Cu基胎体钻头钻进性能的影响。结果表明:使用Fe-Cu基配方和粒度代号40/45、浓度50%的单一粒度金刚石钻头对花岗岩的钻进性能最佳,其钻耗比约为9 000,钻进效率约为1.1 mm/s。Abstract: The effects of diamond particle size and concentration on drilling performance and mechanical properties of Fe-Cu matrix bits were studied by using diamonds of the same concentration but different particle size, or the same particle size but different concentration in Fe-Cu matrix formula. Results show that the diamond bit with particle size of 40/45 and concentration of 50% has the best drilling performance by using granite at Fe-Cu formula, which is bit wear ratio of 9000 and drilling efficiency of 1.1 mm/s.
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Key words:
- Fe-Cu-based /
- diamond /
- bit /
- granite /
- bending strength
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