公开(公告)号：US20180073108A1

公开(公告)日：2018-03-15

申请号：US15561059

申请日：2016-03-23

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Anders NORDGREN ,  Anna EKMARKER ,  Susanne NORGREN

IPC: C22C29/06 ,  E21B10/56 ,  C22C29/08

CPC classification number: C22C29/067 ,  B22F2005/001 ,  C22C29/08 ,  E21B10/56

Abstract: A rock drill button having a body of sintered cemented carbide that has hard constituents of tungsten carbide (WC) in a binder phase of Co, wherein the cemented carbide has 4-12 mass % Co and balance WC and unavoidable impurities. The cemented carbide also has Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 μm.

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.