METHOD FOR PRODUCING A SINTERED, SUPPORTED POLYCRYSTALLINE DIAMOND COMPACT
摘要
A sintered supported polycrystalline diamond compact (PCD) having improved abrasion resistance properties is manufactured by subjecting diamond crystals placed in adjacency with a metal carbide support containing a catalyst/sintering aid to high pressure/high temperature (HP/HT) processing. Said PCD compact comprises: a) a body of diamond crystals comprising a mixture of about 60 wt % to about 80 wt. % of coarse fraction having an average particle size ranging from about 30 to 60 mum and a fine fraction being about not substantially greater than about 20% of the average particle size of said coarse fraction; and b) a support body comprising about 12 wt. % or less of a catalyst/sintering.
申请公布号
EP1546423(A1)
申请公布日期
2005.06.29
申请号
EP20030799282
申请日期
2003.09.11
申请人
DIAMOND INNOVATIONS, INC.
发明人
RAGHAVAN, RAM;MCHALE, JAMES, MICHAEL, JR.;SCURLOCK, ROBERT, DEAN