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System for processing a body of polycrystalline diamond material
A system 30 for leaching a polycrystalline diamond (PCD) cutter element 1 having a body of PCD material including a non-diamond phase comprising a solvent catalyst material, the system comprising: a leaching receptacle 32 for receiving a volume of liquid acid leaching mixture 36; a fixture 38 adapted to hold the PCD cutter element to be leached, spaced from the volume of leaching mixture; a seal member 40 positioned in a recess in the fixture for positioning around the PCD cutter element; and the leaching receptacle and fixture being adapted to interconnect forming a closed system. The system may further comprise a heat source to heat the leaching mixture to above ambient conditions to transition at least some of the liquid acid leaching mixture to acid vapour(s). The seal member may comprise an o-ring seal, which may be formed of a fluoroelastomer and/or a perfluoroelastomeric compound. The leaching receptacle and/or the fixture may comprise stainless steel, and the system may comprise a liner 34 located within the leaching receptacle, formed of an acid resistant material.
System for processing a body of polycrystalline diamond material
A system 30 for leaching a polycrystalline diamond (PCD) cutter element 1 having a body of PCD material including a non-diamond phase comprising a solvent catalyst material, the system comprising: a leaching receptacle 32 for receiving a volume of liquid acid leaching mixture 36; a fixture 38 adapted to hold the PCD cutter element to be leached, spaced from the volume of leaching mixture; a seal member 40 positioned in a recess in the fixture for positioning around the PCD cutter element; and the leaching receptacle and fixture being adapted to interconnect forming a closed system. The system may further comprise a heat source to heat the leaching mixture to above ambient conditions to transition at least some of the liquid acid leaching mixture to acid vapour(s). The seal member may comprise an o-ring seal, which may be formed of a fluoroelastomer and/or a perfluoroelastomeric compound. The leaching receptacle and/or the fixture may comprise stainless steel, and the system may comprise a liner 34 located within the leaching receptacle, formed of an acid resistant material.
System for processing a body of polycrystalline diamond material
DAVID THOMAS FORD (author) / DAVID WILLIAM ALDMINGTON (author) / CARMEN ELENA ZVORISTE-WALTERS (author) / JONATHAN JAMES BIDDULPH (author)
2024-07-31
Patent
Electronic Resource
English
IPC:
C23F
Nichtmechanisches Entfernen metallischer Stoffe von Oberflächen
,
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
C04B
Kalk
,
LIME
/
C22C
Legierungen
,
ALLOYS
Method of processing a body of polycrystalline diamond material
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