Method for fastening blades on the periphery of the rotor body of a steam turbine and the turbo-machine produced by the method
US4710103A · kind A · utility
16Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Jun 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49989
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Steam turbine blades are fastened in an outer layer of weld material applied by deposit welding to the outer surface of the rotor body, the composition of the weld material being optimally matched with respect to hot strength and/or corrosion resistance, in particular stress corrosion resistance, to the local mechanical, thermal and chemical requirements. A possible option is additionally to insert a deposit welded intermediate layer of medium alloying element content. Steels with 10-14% Cr, low carbon and additions of Mo and possibly V are preferred as the weld material for the layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.