EP 2094418 A1 20090902 - POLYCRYSTALLINE DIAMOND ABRASIVE COMPACTS
Title (en)
POLYCRYSTALLINE DIAMOND ABRASIVE COMPACTS
Title (de)
SCHLEIFPRESSKÖRPER AUS POLYKRISTALLINEM DIAMANT
Title (fr)
DISPOSITIFS COMPACTS ABRASIFS EN DIAMANT POLYCRISTALLIN
Publication
Application
Priority
- IB 2007054410 W 20071031
- ZA 200609073 A 20061031
Abstract (en)
[origin: WO2008053431A1] This invention is for a polycrystalline diamond composite material comprising diamond particles and a binder phase, the polycrystalline diamond composite material defining a plurality of interstices and the binder phase being distributed in the interstices to form binder pools. The invention is characterised in that there is present in the binder phase a separate tungsten carbide particulate phase in excess of 0.05 total volume %, but not greater than 2 volume %, expressed as a % of the total composite material and that the tungsten carbide particulate phase is homogenously distributed in the composite material in such a manner that the relative standard deviation of the tungsten carbide grain size is less than 1. The invention extends to a method of manufacturing the composite material and to a polycrystalline diamond abrasive compact comprising the diamond composite material for use in cutting or abrading of a substrate or in drilling applications.
IPC 8 full level
B22F 7/06 (2006.01); C22C 26/00 (2006.01)
CPC (source: EP KR US)
B22F 7/06 (2013.01 - EP KR US); C22C 26/00 (2013.01 - EP KR US); B22F 2005/001 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); C22C 2026/006 (2013.01 - EP US)
Citation (search report)
See references of WO 2008053431A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008053431 A1 20080508; CN 101522346 A 20090902; CN 101522346 B 20110119; EP 2094418 A1 20090902; JP 2010508164 A 20100318; JP 5331003 B2 20131030; KR 20090086999 A 20090814; RU 2009120569 A 20101210; RU 2466200 C2 20121110; US 2010000158 A1 20100107; ZA 200901042 B 20100526
DOCDB simple family (application)
IB 2007054410 W 20071031; CN 200780036344 A 20071031; EP 07826923 A 20071031; JP 2009534043 A 20071031; KR 20097010409 A 20071031; RU 2009120569 A 20071031; US 44777907 A 20071031; ZA 200901042 A 20071031