发明名称 |
IMPREGNATED MATERIAL WITH VARIABLE EROSION PROPERTIES FOR ROCK DRILLING AND THE METHOD TO MANUFACTURE |
摘要 |
<p>A cutting structure that includes a plurality of encapsulated particles dispersed in a first matrix material, the encapsulated particles comprising: an abrasive grit encapsulated within a shell, wherein the shell comprises a second matrix material different from the first matrix material is disclosed.</p> |
申请公布号 |
CA2594037(C) |
申请公布日期 |
2013.12.03 |
申请号 |
CA20072594037 |
申请日期 |
2007.07.18 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
LOCKWOOD, GREGORY T. |
分类号 |
E21B10/42;B22F3/12;B23B51/00 |
主分类号 |
E21B10/42 |
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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