CA2169781A1 - Rotor Shaft for a Steam Turbine - Google Patents
Rotor Shaft for a Steam TurbineInfo
- Publication number
- CA2169781A1 CA2169781A1 CA 2169781 CA2169781A CA2169781A1 CA 2169781 A1 CA2169781 A1 CA 2169781A1 CA 2169781 CA2169781 CA 2169781 CA 2169781 A CA2169781 A CA 2169781A CA 2169781 A1 CA2169781 A1 CA 2169781A1
- Authority
- CA
- Canada
- Prior art keywords
- steam turbine
- rotor shaft
- ratio
- fabricated
- weight
- 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.)
- Granted
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Rolling Contact Bearings (AREA)
- Heat Treatment Of Steel (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A rotor shaft for a steam turbine integrating high and low pressure portions, is fabricated from a Ni-Cr-Mo-V low alloy steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V. In this steel the ratio (Mn/Ni) is not more than 0.12 or the ratio(Si + Mn)/Ni is not more than 0.18.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2389089 | 1989-02-03 | ||
JP01-023890 | 1989-02-03 | ||
JP12662289 | 1989-05-22 | ||
JP01-126622 | 1989-05-22 | ||
CA002009120A CA2009120C (en) | 1989-02-03 | 1990-02-01 | Steam turbine, rotor shaft thereof, and heat resisting steel |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002009120A Division CA2009120C (en) | 1989-02-03 | 1990-02-01 | Steam turbine, rotor shaft thereof, and heat resisting steel |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2169781A1 true CA2169781A1 (en) | 1990-08-04 |
CA2169781C CA2169781C (en) | 1998-04-21 |
Family
ID=27168705
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002169779A Expired - Lifetime CA2169779C (en) | 1989-02-03 | 1990-02-01 | Power generation system |
CA002169780A Expired - Lifetime CA2169780C (en) | 1989-02-03 | 1990-02-01 | Steam turbine |
CA002169781A Expired - Lifetime CA2169781C (en) | 1989-02-03 | 1990-02-01 | Rotor shaft for a steam turbine |
CA002169782A Expired - Lifetime CA2169782C (en) | 1989-02-03 | 1990-02-01 | Heat resisting steel |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002169779A Expired - Lifetime CA2169779C (en) | 1989-02-03 | 1990-02-01 | Power generation system |
CA002169780A Expired - Lifetime CA2169780C (en) | 1989-02-03 | 1990-02-01 | Steam turbine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002169782A Expired - Lifetime CA2169782C (en) | 1989-02-03 | 1990-02-01 | Heat resisting steel |
Country Status (1)
Country | Link |
---|---|
CA (4) | CA2169779C (en) |
-
1990
- 1990-02-01 CA CA002169779A patent/CA2169779C/en not_active Expired - Lifetime
- 1990-02-01 CA CA002169780A patent/CA2169780C/en not_active Expired - Lifetime
- 1990-02-01 CA CA002169781A patent/CA2169781C/en not_active Expired - Lifetime
- 1990-02-01 CA CA002169782A patent/CA2169782C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2169781C (en) | 1998-04-21 |
CA2169780C (en) | 1998-04-21 |
CA2169780A1 (en) | 1990-08-04 |
CA2169782A1 (en) | 1990-08-04 |
CA2169782C (en) | 1997-03-04 |
CA2169779A1 (en) | 1990-08-04 |
CA2169779C (en) | 1999-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |