Low cost chrome and chrome/aluminide process for moderate temperature applications
US6884524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Apr 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12847
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A low cost chromide and chromide/aluminide process for moderate temperature applications. A gas turbine engine component is cleaned and coated with a layer of metal, generally chromium or chromium and aluminum, containing paint. The metal containing paint layer is heated to a first temperature for a first period of time in an air environment to volatilize the solvents in the paint. The metal containing paint layer is heated to a second temperature for a second period of time in an oxygen-free atmosphere to volatilize the solvents in the paint. The now metal layer and component are heated to a third temperature for a third period of time to interdiffuse the metal and the metal of the component. The component and diffusion layer are then cooled to ambient temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.