公开(公告)号：US20180237346A1

公开(公告)日：2018-08-23

申请号：US15754075

申请日：2016-08-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Susanne NORGREN ,  Johan SUNDSTROM ,  Malin MARTENSSON ,  Anna EKMARKER

IPC: C04B35/52 ,  C04B35/628 ,  C04B35/63 ,  C04B35/645 ,  B01J3/06

CPC classification number: C04B35/52 ,  B01J3/06 ,  B01J3/065 ,  B01J2203/062 ,  B01J2203/0655 ,  C04B35/573 ,  C04B35/628 ,  C04B35/62823 ,  C04B35/6316 ,  C04B35/634 ,  C04B35/6455 ,  C04B2235/3826 ,  C04B2235/3834 ,  C04B2235/3843 ,  C04B2235/3891 ,  C04B2235/3895 ,  C04B2235/404 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/604 ,  C04B2235/608 ,  C04B2235/616 ,  C04B2235/652 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/95 ,  C04B2235/96 ,  C04B2235/9615

Abstract: A method of producing a component of a composite of diamond and a binder, wherein a Hot Isostatic gas Pressure process (HIP) is used, includes the step of enclosing a de-bound green body having compacted diamond particles in an infiltrant. The method includes the further steps of enclosing the de-bound green body and the infiltrant in a Zr-capsule that has Zirconium as a main constituent and sealing the Zr-capsule, and applying a predetermined pressure-temperature cycle on the unit formed by the de-bound green body, infiltrant and capsule in which the infiltrant infiltrates the de-bound green body and the de-bound green body is further densified in the sense that the volume thereof is decreased.

公开(公告)号：US20180250647A1

公开(公告)日：2018-09-06

申请号：US15754316

申请日：2016-08-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Johan SUNDSTROM ,  Malin MARTENSSON

IPC: B01J3/06 ,  B22F3/00 ,  C04B35/117 ,  C04B35/573 ,  C04B35/58 ,  C04B35/634 ,  C04B35/52

CPC classification number: B01J3/062 ,  A61L27/08 ,  B22F3/008 ,  B29C64/129 ,  B32B18/00 ,  B33Y10/00 ,  B33Y80/00 ,  C04B35/117 ,  C04B35/52 ,  C04B35/573 ,  C04B35/58071 ,  C04B35/6269 ,  C04B35/6316 ,  C04B35/634 ,  C04B35/638 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3826 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/6026 ,  C04B2235/608 ,  C04B2235/616 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/661 ,  C04B2235/725 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/963 ,  C04B2235/9638 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/582 ,  C04B2237/704

Abstract: A lithography based method for the manufacture of diamond composite materials in which green bodies are prepared by a layer-by-layer construction with resulting green bodies de-bound and sintered to achieve a dense high hardness material.

公开(公告)号：US20200030886A1

公开(公告)日：2020-01-30

申请号：US16337388

申请日：2017-09-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Malin MARTENSSON ,  Ioannis ARVANITIDIS ,  Krystof TURBA

IPC: B23B27/14 ,  B22F9/04 ,  B22F9/02 ,  B22F3/15 ,  B22F3/24

Abstract: A rock drill insert made of cemented carbide having hard constituents of tungsten carbide (WC) in a binder phase including Co, wherein the cemented carbide includes 4-18 mass % Co and a balance of WC and unavoidable impurities. The cemented carbide also includes Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and the difference between the hardness at a 0.3 mm depth at any point of the surface of the rock drill insert and the hardness of the bulk of the rock drill insert is at least 40 HV3.