发明名称 |
Hard Composite with Deformable Constituent and Method of Applying to Earth-Engaging Tool |
摘要 |
A hardmetal composite used as wear-resistant surfaces and inlays in earth-engaging equipment includes more than one hardphase. At least one hardphase has a high average particle size, for example, from 100 μm to 2000 μm. The hardphases vary in terms of particle size, hardness, and binder content, and at least one hardphase includes a particulate constituent capable of plastic deformation that comprises at least 1% residual porosity.
|
申请公布号 |
US2011031028(A1) |
申请公布日期 |
2011.02.10 |
申请号 |
US20090536624 |
申请日期 |
2009.08.06 |
申请人 |
NATIONAL OILWELL VARCO, L.P. |
发明人 |
SRESHTA HAROLD;DRAKE ERIC F.;CARAWAY DOUGLAS B. |
分类号 |
E21B10/00;B21D22/00;B22F1/00;B32B3/26 |
主分类号 |
E21B10/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|