发明名称 |
METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS, AND ARTICLES FORMED BY SUCH METHODS |
摘要 |
<p>Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and the hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.</p> |
申请公布号 |
CA2799911(A1) |
申请公布日期 |
2011.11.24 |
申请号 |
CA20112799911 |
申请日期 |
2011.05.19 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
STEVENS, JOHN H.;EASON, JIMMY W. |
分类号 |
B22D19/06;B22D19/16;C22C1/02;C22C1/10;E21B10/08 |
主分类号 |
B22D19/06 |
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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