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US 10,308,558 B2Granted
Process of manufacturing cemented carbide and a product obtained thereof
AssigneeSandvik Intellectual Property AB
InventorsJose Garcia, Susanne Norgren
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Abstract
A process of manufacturing cemented carbide and to a product obtained thereof, wherein hex doped WC is subjected to nitrogen before and/or during sintering.
Claims15
A process of manufacturing a cemented carbide, said process comprising the steps of:
- a) forming a slurry including a milling liquid, binder metal and hard constituents, wherein said hard constituents include hex doped WC;
- b) subjecting said slurry to milling and drying to form a powder mixture;
- and
- c) subjecting the powder mixture to pressing and sintering, wherein the hex doped WC is subjected to nitrogen both by the addition of a transition metal nitride or transition metal carbonitride to said slurry and by subjecting the hex doped WC to nitrogen gas during sintering.
1 more element
Dependencies are inferred from the claim text.