Invention Grant
- Patent Title: Cemented carbide material
- Patent Title (中): 硬质合金材料
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Application No.: US14475465Application Date: 2014-09-02
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Publication No.: US09314847B2Publication Date: 2016-04-19
- Inventor: Igor Yurievich Konyashin , Bernd Heinrich Ries , Frank Friedrich Lachmann
- Applicant: Element Six GmbH
- Applicant Address: DE Burghaun
- Assignee: Element Six GmbH
- Current Assignee: Element Six GmbH
- Current Assignee Address: DE Burghaun
- Agency: Kilpatrick Townsend & Stockton LLP
- Agent Dean W. Russell; Clark F. Weight
- Priority: GB1105150.5 20110328
- Main IPC: B22F3/24
- IPC: B22F3/24 ; C22C29/08 ; B22F7/00 ; C22C29/00 ; C22C29/06 ; B22F5/00

Abstract:
Cemented carbide material comprising tungsten carbide (WC) material in particulate form having a mean grain size D in terms of equivalent circle diameter of at least 0.5 microns and at most 10 microns, and a binder phase comprising cobalt (Co) of at least 5 weight per cent and at most 12 weight per cent, W being present in the binder at a content of at least 10 weight per cent of the binder material; the content of the WC material being at least 75 weight per cent and at most 95 weight per cent; and nanoparticles dispersed in the binder material, the nanoparticles comprising material according to the formula CoxWyCz, where X is a value in the range from 1 to 7, Y is a value in the range from 1 to 10 and Z is a value in the range from 0 to 4; the nanoparticles having a mean particle size at most 10 nm, at least 10 per cent of the nanoparticles having size of at most 5 nm; the cemented carbide material having a magnetic coercive force in the units kA/m of at least −2.1XD+14.
Public/Granted literature
- US20150360291A1 CEMENTED CARBIDE MATERIAL Public/Granted day:2015-12-17
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