Title:
A manufacturing method of a nature structure of superhard
Document Type and Number:
Japanese Patent JP5906355
Kind Code:
B2
Abstract:
A method of making a construction comprising a polycrystalline super-hard structure joined to a side surface of an elongate substrate. The method includes: providing a vessel configured for an ultra-high pressure, high temperature furnace, the vessel having an elongate cavity for containing a pre-sinter assembly and defining a longitudinal axis, the cavity having opposite ends connected by a cavity wall. The pre-sinter assembly comprises the substrate, an aggregation comprising a plurality of super-hard grains arranged over at least a part of the side surface of the substrate, and a spacer structure configured for spacing the substrate apart from the cavity wall. The spacer structure comprises material having a Young's modulus of at least 300 GPa. The method further includes inserting the pre-sinter assembly into the cavity, the substrate being substantially longitudinally aligned and the spacer structure arranged between the side surface of the substrate and the cavity wall; applying a force to the pre-sinter assembly and heating it to a temperature, the force being sufficient to generate a pressure within the vessel for sintering the aggregation at the temperature, and providing the construction.
Inventors:
Maweja, casonde
Reshop, Joseph, Shoyanye
Ellens, Sepo, Radebe
John, James, Barry
Reshop, Joseph, Shoyanye
Ellens, Sepo, Radebe
John, James, Barry
Application Number:
JP2015506231A
Publication Date:
April 20, 2016
Filing Date:
April 17, 2013
Export Citation:
Assignee:
ELEMENT SIX ABRASIVES S.A.
International Classes:
B01J3/06; B22F3/14; B22F7/00; B22F7/06; B23B27/14; B23B27/20; C22C26/00; C22C29/16
Domestic Patent References:
| JP2004516152A | ||||
| JP11512375A | ||||
| JP5320717A |
Foreign References:
| WO2010005891A1 | ||||
| WO2011157667A1 |
Attorney, Agent or Firm:
Hirohito Katsunuma
Kazuma Kojima
Kazuma Kojima