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
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