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
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