Method of manufacturing a control wheel for the high-pressure rotor of a steam turbine
US4812107A · kind A · utility
17Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1986 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49321
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A control wheel intended for welding onto the high-pressure rotor of a steam turbine is manufactured from a ring of individual blades welded together. For this purpose, all of the individual blades are provided with shrouds and root platforms having welding grooves formed therein. After being welded together into a ring, closed on all sides, the control wheel is annealed, machined and finally heat-treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.