发明名称 |
Thermally stable ultra-hard material compact construction |
摘要 |
Thermally stable ultra-hard compact constructions of this invention comprise an ultra-hard material body that includes a thermally stable region positioned adjacent a surface of the body. The thermally stable region is formed from consolidated materials that are thermally stable at temperatures greater than about 750° C. The thermally stable region can occupy a partial portion of or the entire ultra-hard material body. The ultra-hard material body can comprise a composite of separate ultra-hard material elements that each form different regions of the body, at least one of the regions being thermally stable. The ultra-hard material body is attached to a desired substrate, an intermediate material is interposed between the body and the substrate, and the intermediate material joins the substrate and body together by high pressure/high temperature process.
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申请公布号 |
US7377341(B2) |
申请公布日期 |
2008.05.27 |
申请号 |
US20050140482 |
申请日期 |
2005.05.26 |
申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
MIDDLEMISS STEWART N.;BELNAP J. DANIEL;MOURIK NEPHI;OLDHAM THOMAS W.;GRIFFO ANTHONY |
分类号 |
E21B10/26 |
主分类号 |
E21B10/26 |
代理机构 |
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