| 发明名称 |
MATRIX POWDER FOR MATRIX BODY FIXED CUTTER BITS |
| 摘要 |
A matrix powder for forming a matrix bit body, the matrix powder essentially consisting of a plurality of carbide particles having a particle size distribution of ±20% of a median particle size; and a plurality of metal binder particles is disclosed.
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| 申请公布号 |
US2009260893(A1) |
申请公布日期 |
2009.10.22 |
| 申请号 |
US20080189992 |
申请日期 |
2008.08.12 |
| 申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
SHENG XIAYANG;LOCKSTEDT ALAN W.;LOCKWOOD GREGORY T. |
| 分类号 |
E21B10/36;C04B35/56 |
主分类号 |
E21B10/36 |
| 代理机构 |
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