发明名称 |
Engineered Bearing Surface For Rock Drilling Bit |
摘要 |
A drill bit bearing having a treated surface and method for preparing the same is provided. The method includes the steps of polishing at least one contacting surface of the bearing with an abrasive paste to a finish of less than about 10 μin Ra. The surface of the polishing instrument has a coating that includes a mixture of an epoxy cement and a polymer.
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申请公布号 |
US2010163313(A1) |
申请公布日期 |
2010.07.01 |
申请号 |
US20090648178 |
申请日期 |
2009.12.28 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
LIN CHIH;DICK AARON |
分类号 |
E21B10/00;B23P15/32;B23P17/00;B24B1/00 |
主分类号 |
E21B10/00 |
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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