发明名称 |
Hardfacing compositions for earth boring tools |
摘要 |
A hardfacing composition essentially consisting of from about 50 to 75 percent by weight of a carbide phase having a particle size distribution of ±20% or less of a median particle size; and from about 25 to 50 percent by weight of binder phase is disclosed. Drill bits having such hardfacing compositions disposed thereon are also disclosed. |
申请公布号 |
US8617289(B2) |
申请公布日期 |
2013.12.31 |
申请号 |
US20080190002 |
申请日期 |
2008.08.12 |
申请人 |
LOCKSTEDT ALAN W.;LOCKWOOD GREGORY T.;SMITH INTERNATIONAL, INC. |
发明人 |
LOCKSTEDT ALAN W.;LOCKWOOD GREGORY T. |
分类号 |
B22F1/00;C22C29/08;E21B10/08;E21B10/42 |
主分类号 |
B22F1/00 |
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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