Methods of forming erosion-resistant composites, methods of using the same, and earth-boring tools utilizing the same in internal passageways
US8252225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Nov 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31696
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layer precursor material for use in forming hardfacing on a tool including hard particles, metal particles and a polymer. Methods of forming a multi-layer precursor film. Methods of using a precursor material to form hardfacing on a tool, including brazing a precursor material onto a surface of the tool. Intermediate structures for use in forming earth-boring tools including a precursor material covering an internal surface of a body of the tools. Methods of forming earth-boring tools include forming a body having a fluid passageway extending therethrough and covering a surface of the body with a hardfacing material. The surface of the body may be located in a region susceptible to erosion when fluid is caused to flow through the fluid passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.