JPS55164705A - Method of fixing shroud for rotor blade - Google Patents
Method of fixing shroud for rotor bladeInfo
- Publication number
- JPS55164705A JPS55164705A JP7236179A JP7236179A JPS55164705A JP S55164705 A JPS55164705 A JP S55164705A JP 7236179 A JP7236179 A JP 7236179A JP 7236179 A JP7236179 A JP 7236179A JP S55164705 A JPS55164705 A JP S55164705A
- Authority
- JP
- Japan
- Prior art keywords
- shroud
- end portion
- top end
- rotor blade
- way
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To prevent degradation in performance, by coupling the top end portion of the rotor blade and the shroud directly by way of electron beam welding, and thereby increasing the strength at the coupled portions.
CONSTITUTION: The top end portion 23 of the rotor blade 5 where it is held in contact with the shroud 9 is so shaped that the sectional area is increased gradually toward the top, and the top end portion 23 of the rotor blade 5 is fixed to the shroud 9 by way of electron beam welding 25 from the outside of the shroud 9. Unwelded portions 26 located between the top end portion 23 and the inner surface of the shroud 9 are removed by way of grinding after welding. Since the contact area of the top end portion 23 of the rotor blade 5 and the shroud 9 is thus increased, stress can be reduced and strength at the welded portions can be increased. Further, it is enabled to eliminate leakage of steam through the space between the top end portion 23 and the inner surface of the shroud 9 and hence to prevent degradation in performance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7236179A JPS55164705A (en) | 1979-06-11 | 1979-06-11 | Method of fixing shroud for rotor blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7236179A JPS55164705A (en) | 1979-06-11 | 1979-06-11 | Method of fixing shroud for rotor blade |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55164705A true JPS55164705A (en) | 1980-12-22 |
Family
ID=13487092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7236179A Pending JPS55164705A (en) | 1979-06-11 | 1979-06-11 | Method of fixing shroud for rotor blade |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164705A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62206201A (en) * | 1986-03-06 | 1987-09-10 | Toshiba Corp | Moving blade for turbine |
-
1979
- 1979-06-11 JP JP7236179A patent/JPS55164705A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62206201A (en) * | 1986-03-06 | 1987-09-10 | Toshiba Corp | Moving blade for turbine |
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