Rotary cutter knife
AssigneeSandvik Intellectual Property AB
InventorsMichael Carpenter, Bart De Bruyne, Daniel Tartavez, Jean Parjat
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Abstract
The present invention relates to a rotary cutter knife of a cemented carbide comprising a hard phase comprising WC and a binder phase wherein the cemented carbide comprises, in wt-%, from about 7 to about 12 Co+Ni, with a weight ratio Co/Ni of from about 0 to about 4, from about 0.5 to about 3 Cr and from about 0.1 to about 0.3 Mo.
Claims22
A rotary cutter knife of a cemented carbide comprising a hard phase comprising WC and a binder phase,
- wherein the cemented carbide has a composition, in wt-%, from about 6 to about 8 Co, from about 2 to about 3 Ni, from about 0.8 to about 2 Cr, and from about 0.1 to about 0.3 Mo, with balance of WC.
A rotary cutter knife of a cemented carbide comprising a hard phase comprising WC and a binder phase, wherein the cemented carbide has a composition, in wt-%, from about 3 to about 4 Co, from about 6 to about 8 Ni, from about 1 to about 1.5 Cr, and from about 0.1 to about 0.3 Mo, with balance of WC.
A rotary cutter knife of a cemented carbide comprising a hard phase comprising WC and a binder phase, wherein the cemented carbide comprises, in wt-%, from about 7 to about 12 Co+Ni, with a weight ratio Co/Ni of from about 0 to about 4, from about 0.5 to about 3 Cr and from about 0.1 to about 0.3 Mo, and wherein essentially all WC grains have a size less than about 1 μm.
Dependencies are inferred from the claim text.