JPS6473058A - Extra-high-temperature and-pressure steam turbine rotor - Google Patents
Extra-high-temperature and-pressure steam turbine rotorInfo
- Publication number
- JPS6473058A JPS6473058A JP23069387A JP23069387A JPS6473058A JP S6473058 A JPS6473058 A JP S6473058A JP 23069387 A JP23069387 A JP 23069387A JP 23069387 A JP23069387 A JP 23069387A JP S6473058 A JPS6473058 A JP S6473058A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- extra
- steam turbine
- turbine rotor
- pressure steam
- 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
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 229910052796 boron Inorganic materials 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 229910052748 manganese Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 229910052719 titanium Inorganic materials 0.000 abstract 2
- 229910052720 vanadium Inorganic materials 0.000 abstract 2
- 206010014970 Ephelides Diseases 0.000 abstract 1
- 208000003351 Melanosis Diseases 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To manufacture an extra-high-temp. and -pressure steam turbine rotor excellent in strength at high temp., by subjecting a steel having a specific composition consisting of C, Si, Mn, Ni, Cr, Mo, V, Al, Ti, B, and Fe to solution heat treatment and then to multistage aging treatment. CONSTITUTION:A steel having a composition consisting of, by weight, 0.01-0.05% C, 0.1-0.5% Si, 0.3-0.9% Mn, 25-27% Ni, 14-16% Cr, 1-1.5% Mo, 0.1-0.5% V, 0.05-0.3% Al, 1-1.7% Ti, 0.002-0.008% B, and the balance Fe with inevitable impurities is subjected to solution heat treatment and then to three-stage aging treatment. By this method, the extra-high-temp. and -pressure steam turbine rotor excellent in strength at high temp., reduced in the occurrence of freckles, improved in toughness and ductility, and having stable material quality can be obtained. This rotor can withstand high-temp. and high-pressure conditions where the temp. and the pressure of the main steam are as high as about 600-700 deg.C and about 4,000-5,000psi, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62230693A JPH07116517B2 (en) | 1987-09-14 | 1987-09-14 | Ultra high temperature and high pressure steam turbine rotor manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62230693A JPH07116517B2 (en) | 1987-09-14 | 1987-09-14 | Ultra high temperature and high pressure steam turbine rotor manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6473058A true JPS6473058A (en) | 1989-03-17 |
| JPH07116517B2 JPH07116517B2 (en) | 1995-12-13 |
Family
ID=16911832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62230693A Expired - Fee Related JPH07116517B2 (en) | 1987-09-14 | 1987-09-14 | Ultra high temperature and high pressure steam turbine rotor manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07116517B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100290653B1 (en) * | 1998-10-16 | 2001-06-01 | 윤영석 | 15Cr 26Ni 1.25Mo Heat Resistant Steel for 650 ℃ Class Steam Turbine Rotor |
| JP2014043621A (en) * | 2012-08-28 | 2014-03-13 | Nippon Steel & Sumitomo Metal | Austenitic heat resistant steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5877557A (en) * | 1981-11-04 | 1983-05-10 | Hitachi Ltd | Superhigh temperature and pressure steam turbine |
| JPS6092456A (en) * | 1983-10-26 | 1985-05-24 | Hitachi Ltd | Iron base superalloy |
| JPS62180044A (en) * | 1986-02-05 | 1987-08-07 | Hitachi Ltd | Rotor shaft for steam turbine |
| JPS62218515A (en) * | 1986-03-17 | 1987-09-25 | Kobe Steel Ltd | Heat treatment of fe base heat resisting alloy superior in creep rupture property |
| JPS63145752A (en) * | 1986-12-09 | 1988-06-17 | Kawasaki Steel Corp | Austenitic iron alloy having strength and toughness |
-
1987
- 1987-09-14 JP JP62230693A patent/JPH07116517B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5877557A (en) * | 1981-11-04 | 1983-05-10 | Hitachi Ltd | Superhigh temperature and pressure steam turbine |
| JPS6092456A (en) * | 1983-10-26 | 1985-05-24 | Hitachi Ltd | Iron base superalloy |
| JPS62180044A (en) * | 1986-02-05 | 1987-08-07 | Hitachi Ltd | Rotor shaft for steam turbine |
| JPS62218515A (en) * | 1986-03-17 | 1987-09-25 | Kobe Steel Ltd | Heat treatment of fe base heat resisting alloy superior in creep rupture property |
| JPS63145752A (en) * | 1986-12-09 | 1988-06-17 | Kawasaki Steel Corp | Austenitic iron alloy having strength and toughness |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100290653B1 (en) * | 1998-10-16 | 2001-06-01 | 윤영석 | 15Cr 26Ni 1.25Mo Heat Resistant Steel for 650 ℃ Class Steam Turbine Rotor |
| JP2014043621A (en) * | 2012-08-28 | 2014-03-13 | Nippon Steel & Sumitomo Metal | Austenitic heat resistant steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07116517B2 (en) | 1995-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |