Stress corrosion resistant rims and discs for steam turbine rotors device and method
US5746579A · kind A · utility
20Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Dec 27, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A formed disc for use in a low pressure rotor has a rim made of a high alloy metal of between approximately 9% and 17% chromium. The rim can be annular in shape and slide onto the perimeter of an unformed disc for the two components to be fused together, thus fabricating a formed disc. Additionally, the rim can be split into a number of components and fused together on the perimeter of a rotor disc to form a complete rim. Further, an entire disc can be made out of the high alloy metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.