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

Abstract:

Article Preview

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 et al., "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

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.