A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POLYCRYSTALLINE DIAMOND COMPACT PROVIDED WITH MULTIPLE POLYCRYSTALLINE DIAMOND SINTERED BODIES AND METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND COMPACT
The present invention relates to a polycrystalline diamond compact having multiple polycrystalline diamond sintered bodies and a method for producing the polycrystalline diamond compact. The method for producing the polycrystalline diamond includes: preparing first diamond powder; producing a first polycrystalline diamond sintered body having a diameter smaller than the diameter of a cemented substrate by sintering the first diamond powder under 5 to 6 GPa pressure and 1300 to 1500° C. temperature; positioning the first polycrystalline diamond sintered body in the center of the cemented substrate, and granulating second diamond powder around the first polycrystalline diamond sintered body; and sintering the second diamond powder under 5 to 6 GPa pressure and 1300 to 1500° C. temperature to form a second polycrystalline diamond sintered body. The polycrystalline diamond sintered body has uniform sintered characteristics at the center and outer edges thereof.
POLYCRYSTALLINE DIAMOND COMPACT PROVIDED WITH MULTIPLE POLYCRYSTALLINE DIAMOND SINTERED BODIES AND METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND COMPACT
The present invention relates to a polycrystalline diamond compact having multiple polycrystalline diamond sintered bodies and a method for producing the polycrystalline diamond compact. The method for producing the polycrystalline diamond includes: preparing first diamond powder; producing a first polycrystalline diamond sintered body having a diameter smaller than the diameter of a cemented substrate by sintering the first diamond powder under 5 to 6 GPa pressure and 1300 to 1500° C. temperature; positioning the first polycrystalline diamond sintered body in the center of the cemented substrate, and granulating second diamond powder around the first polycrystalline diamond sintered body; and sintering the second diamond powder under 5 to 6 GPa pressure and 1300 to 1500° C. temperature to form a second polycrystalline diamond sintered body. The polycrystalline diamond sintered body has uniform sintered characteristics at the center and outer edges thereof.
POLYCRYSTALLINE DIAMOND COMPACT PROVIDED WITH MULTIPLE POLYCRYSTALLINE DIAMOND SINTERED BODIES AND METHOD FOR PRODUCING POLYCRYSTALLINE DIAMOND COMPACT
CHOI DONG IK (author) / PARK HEE SUB (author)
2016-12-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
| European Patent Office | 2018