Jia Pan1, Lu Canhua1, Ye Hongyu2, Li Zhihong3
(1. Nanyang Zhongnan Diamond Co., Ltd., 473264
2. Wuhan Wanbang Laser Diamond Tools Co., 430056
3. Industrial Diamond Association of China, 450013)
Abstract There are mainly two kinds of equipment to produce synthetic diamond, namely the kinds of belt press & cubic press. It has been customary in the industry to regard synthetic diamond produced by cubic press is inferior to that made by belt press. With the on-going improvement in technology, know how & accumulated experiences; perhaps its time for us to review the qualities & performances of synthetic diamond made by the cubic press more objectively. Studies were carried out on the performances of the two kinds of diamond by choosing from top brands & top qualities, with coarser mesh sizes 20/30 & 30/40. Comparisons were made on parameters, such as TI, TTI, PPC, bulk density, compact, roughness and arealight. And the diamonds chosen were used to produce the relevant diamond core drill bits and saw blades, their respective cutting performances such as cutting efficiency, segments consumption were measured and reported in this paper. The report demonstrates that producing the high quality diamond does not depend on the types of presses (Belt or Cubic) but rather on the know how, technology and what it is made.
Keywords comparative study; performance; synthetic diamond; belt press; cubic press