Hard sintered compact for a tool

Details Hard sintered compact for a tool Hard sintered compact for a tool

C - Chemistry, Metallurgy

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C

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C23C 16/30 (2006.01) B23B 27/14 (2006.01) C04B 37/02 (2006.01) C23C 16/32 (2006.01) C23C 16/34 (2006.01) C23C 16/36 (2006.01)

Patent

CA 1313762

TITLE OF THE INVENTION A hard sintered compact for a tool ABSTRACT OF THE DISCLOSURE A sintered diamond compact or high pressure form boron nitride compact with an improved brazability, suitable for use for wear resisting tools, cutting tools, drill bits, dressers and wire-drawing dies is provided. This compact comprises a compact part containing at least 20 % by volume of diamond and/or high pressure form boron nitride and a cemented carbide substrate bonded directly or through an interlayer to the compact part, characterized in that the sur- face of the compact is coated, at least partly, with a thin film consisting essentially of at least one member selected from the group consisting of carbides, carbonitrides and nitrides and mixtures or solid solutions thereof of at least one element selected from the group consisting of silicon and Group IVa, Va and VIa of Periodic Table, and having a thickness of 1 to 20 µm,

522926

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