Paper Title:
Study on Performance of Hot Pressed High Phosphorus-Boron Iron-Based Bit Matrix and Diamond Bit
  Abstract

Formula uniform design method was adopted to study the performance of iron-based matrix with high content of phosphorus and boron. Two forms of regression models on matrix hardness and wear resistance and the optimum matrix formulae were obtained respectively by regression analysis and constrained nonlinear programming using MATLAB. Regression analyses indicate that matrix hardness was mainly affected by the factor of Ni, Co and Fe; matrix hardness and brittleness increased with the increment of P-Fe alloy, but decreased with the increase of 663-Cu. These results can be used as a rough guide for design of highly adaptive diamond bits for different rock formations. After the indoor experiments, diamond bit based on 3# matrix formula was made to perform field drilling tests. The results were that the penetration rate was 1.91m/h and the average diamond bit life was 67.37m.

  Info
Periodical
Edited by
Bo Zhao, Xipeng Xu, Guangqi Cai and Renke Kang
Pages
386-390
DOI
10.4028/www.scientific.net/KEM.416.386
Citation
Z. Yang, B. S. Pan, K. H. Yang, "Study on Performance of Hot Pressed High Phosphorus-Boron Iron-Based Bit Matrix and Diamond Bit", Key Engineering Materials, Vol. 416, pp. 386-390, 2009
Online since
September 2009
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Price
$32.00
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