发明公开
EP1944461A2 Reinforcing overlay for matrix bit bodies
审中-公开
VerstärkendeDeckschichtfürMatrixbitkörper
- 专利标题： Reinforcing overlay for matrix bit bodies
- 专利标题（中）： VerstärkendeDeckschichtfürMatrixbitkörper
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申请号： EP07120761.7申请日： 2007-11-15
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公开(公告)号： EP1944461A2公开(公告)日： 2008-07-16
- 发明人: Keshavan, Madapusi K. , Kembaiyan, Kumar T. , White, Alysia C. , Griffo, Anthony
- 申请人： SMITH INTERNATIONAL, INC. (a Delaware corp.)
- 申请人地址： 16740 Hardy Street Houston, Texas 77032 US
- 专利权人： SMITH INTERNATIONAL, INC. (a Delaware corp.)
- 当前专利权人： SMITH INTERNATIONAL, INC. (a Delaware corp.)
- 当前专利权人地址： 16740 Hardy Street Houston, Texas 77032 US
- 代理机构： Brykman, Georges
- 优先权： US650860 20070108
- 主分类号： E21B10/54
- IPC分类号： E21B10/54 ; E21B10/55
摘要：
A drill bit that includes a matrix bit body having a reinforcing overlay thereon and having at least one blade thereon; at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; and a braze material disposed between the at least one cutter and the at least one cutter pocket, wherein the reinforcing overlay comprises carbide particles and at least one binder and has a melting point greater than a melting point of the braze material is disclosed.
公开/授权文献
- EP1944461A3 Reinforcing overlay for matrix bit bodies 公开/授权日：2009-11-25
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