Methods for weld repairing hollow, air cooled turbine blades and vanes
US4726104A · kind A · utility
86Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Nov 20, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49746
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mask particularly useful in the weld repair of air cooled gas turbine blades and vanes contains a mixture of ceramic particles in a liquid carrier. The mask is applied onto the surface of the blade or vane, and into the cooling holes. Following a sintering treatment, an inert, thermally stable, electrically nonconductive ceramic mask is produced, which is easily removed after welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.