- 专利标题： Shear cutter with improved wear resistance of WC—Co substrate
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申请号： US14992706申请日： 2016-01-11
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公开(公告)号： US10456889B2公开(公告)日： 2019-10-29
- 发明人: John Daniel Belnap , Georgiy Voronin , Peter T. Cariveau
- 申请人： SMITH INTERNATIONAL, INC
- 申请人地址： US TX Houston
- 专利权人： SMITH INTERNATIONAL, INC.
- 当前专利权人： SMITH INTERNATIONAL, INC.
- 当前专利权人地址： US TX Houston
- 主分类号： E21B10/46
- IPC分类号： E21B10/46 ; E21B10/567 ; B24D99/00 ; E21B10/573 ; B24D18/00 ; B24D3/06
摘要：
A cutting element may be formed by sintering together a plurality of metal carbide grains and a metal binder to form a substrate, forming at least one binder gradient in the substrate, and mounting an abrasive layer to the substrate at an interface. The concentration of metal binder material may decrease along at least one direction to form the at least one binder gradient.
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