Mold for ultra-high pressure generator
AssigneeSumitomo Electric Hardmetal Corp.
InventorsSyunsuke YAMANAKA, Eiji YAMAMOTO, Kazuhiro HIROSE
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Abstract
A mold for an ultra-high pressure generating device being composed of a cemented carbide, wherein the cemented carbide comprises a first phase being composed of a plurality of tungsten carbide grains and a second phase containing cobalt, wherein the Vickers hardness of the cemented carbide is 2000 Hv or more, wherein the bending strength of the cemented carbide is 2.3 GPa or more, wherein the mold for an ultra-high pressure generating device has a truncation surface, and wherein the compressive residual stress of the truncation surface is 1.50 GPa or more.
Claims15
A mold for an ultra-high pressure generating device being composed of a cemented carbide,
- wherein the cemented carbide comprises a first phase being composed of a plurality of tungsten carbide grains and a second phase containing cobalt,
- wherein a Vickers hardness of the cemented carbide is 2000 Hv or more,
- wherein a bending strength of the cemented carbide is 2.3 GPa or more,
- wherein the mold for an ultra-high pressure generating device has a truncation surface, and
- wherein a compressive residual stress of the truncation surface is 1.50 GPa or more.
(canceled)
Dependencies are inferred from the claim text.