发明名称 |
Abrasive wear-resistant materials, methods for applying such materials to earth-boring tools, and methods of securing a cutting element to an earth-boring tool using such materials |
摘要 |
An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide granules. A device for use in drilling subterranean formations includes a first structure secured to a second structure with a bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide granules in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of a drill bit that covers a brazing alloy disposed between the cutting element and the bit body. |
申请公布号 |
US8388723(B2) |
申请公布日期 |
2013.03.05 |
申请号 |
US20100702100 |
申请日期 |
2010.02.08 |
申请人 |
OVERSTREET JAMES L.;BAKER HUGHES INCORPORATED |
发明人 |
OVERSTREET JAMES L. |
分类号 |
C22C29/08;C09C1/68;C23C4/06;C23C4/10 |
主分类号 |
C22C29/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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