| 发明名称 |
EARTH BORING DRILL BIT WITH IMPROVED WEAR INSERTS |
| 摘要 |
An improved insert is shown for use in a rotary rock bit of the type adapted to be made up in a drill string extending from the surface of the earth down a borehole. The improved insert is formed of a diamond impregnated carbide containing dispersed diamond crystals, the crystals being formed via the in-situ conversion of graphite to diamond.
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| 申请公布号 |
CA2049903(A1) |
申请公布日期 |
1992.03.01 |
| 申请号 |
CA19912049903 |
申请日期 |
1991.08.26 |
| 申请人 |
HUGHES TOOL COMPANY |
发明人 |
SCOTT, DANNY E.;JUREWICZ, STEPHEN R. |
| 分类号 |
C04B35/52;B01J3/06;C22C26/00;E21B10/50;E21B10/52;E21B10/56;(IPC1-7):E21B10/08 |
主分类号 |
C04B35/52 |
| 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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