Removal of erosive damage to dies due tohigh

The service life of the carbide dies used for synthetic diamond manufacture is increased by addition of refractory metal powders. The powders flow into the cavities caused by erosion and are compressed and welded at the high pressure and temperature prevailing during diamond or boron nitride synthes...

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Bibliographische Detailangaben
Hauptverfasser:	A.I. PRIKHNA, V.N. BAKUL, A.A. SHULZHENKO, A.S.LYASHENKO, V.I. ZHITNETSKY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POWDER METALLURGY THEIR RELEVANT APPARATUS TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The service life of the carbide dies used for synthetic diamond manufacture is increased by addition of refractory metal powders. The powders flow into the cavities caused by erosion and are compressed and welded at the high pressure and temperature prevailing during diamond or boron nitride synthesis. The powder may be from the following groups: Ni, Fe, Co, Mn, Mo, Ti, Ta, W, Cr, Nb, Rh, which may be added individually or together.