发明名称 |
Impregnated material with variable erosion properties for rock drilling |
摘要 |
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.
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申请公布号 |
US8517125(B2) |
申请公布日期 |
2013.08.27 |
申请号 |
US20070779104 |
申请日期 |
2007.07.17 |
申请人 |
LOCKWOOD GREGORY T.;SMITH INTERNATIONAL, INC. |
发明人 |
LOCKWOOD GREGORY T. |
分类号 |
E21B10/36;B22F1/02;B32B5/16;E21B10/567 |
主分类号 |
E21B10/36 |
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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