JPS56163091A - Welding repair method of low-alloy cast steel turbine casing at site - Google Patents
Welding repair method of low-alloy cast steel turbine casing at siteInfo
- Publication number
- JPS56163091A JPS56163091A JP6649480A JP6649480A JPS56163091A JP S56163091 A JPS56163091 A JP S56163091A JP 6649480 A JP6649480 A JP 6649480A JP 6649480 A JP6649480 A JP 6649480A JP S56163091 A JPS56163091 A JP S56163091A
- Authority
- JP
- Japan
- Prior art keywords
- turbine casing
- welding
- low
- repair
- cooper
- 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
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To perform a repair work at a job site, by utilizing a Cooper heater and executing the work of preheating, stress relieving and annealing, in the event of repair of a defective part of a turbine casing made of low-alloy steel, of a heat power generator.
CONSTITUTION: When a defect such as a crack, etc. has occurred in a turbine casing made of Cr-Mo-V low-alloy steel, which has been used under high temperature and high stress for a long period of time in a heat power station, in order to repair this defective part by welding, the turbine casing is preheated, stress-relieved and annealed by use of a Cooper heater. Prior to repair by welding, it is preheated by use of the Cooper heater as a heating element to 250W350°C, and after the repair work by welding has been finished, stress by welding is relieved by heating to 675W705°C by said Cooper heater and annealing, by which a turbine casing can be repaired in the job site of a heat power station.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6649480A JPS56163091A (en) | 1980-05-21 | 1980-05-21 | Welding repair method of low-alloy cast steel turbine casing at site |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6649480A JPS56163091A (en) | 1980-05-21 | 1980-05-21 | Welding repair method of low-alloy cast steel turbine casing at site |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56163091A true JPS56163091A (en) | 1981-12-15 |
Family
ID=13317410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6649480A Pending JPS56163091A (en) | 1980-05-21 | 1980-05-21 | Welding repair method of low-alloy cast steel turbine casing at site |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56163091A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125673A (en) * | 1982-01-12 | 1983-07-26 | 新明和工業株式会社 | Diffusion joining method |
US4611744A (en) * | 1982-06-23 | 1986-09-16 | Refurbished Turbine Components Ltd. | Turbine blade repair |
US4613744A (en) * | 1983-08-02 | 1986-09-23 | Refurbished Turbine Components Limited | Methods of repair |
US4958431A (en) * | 1988-03-14 | 1990-09-25 | Westinghouse Electric Corp. | More creep resistant turbine rotor, and procedures for repair welding of low alloy ferrous turbine components |
US5086968A (en) * | 1990-01-26 | 1992-02-11 | Sundstrand Corporation | Weld repairable combustor |
US5280849A (en) * | 1992-10-06 | 1994-01-25 | Commonwealth Edison | Welding method for rotating shafts |
US5306897A (en) * | 1991-06-25 | 1994-04-26 | Turbine Blading Limited | Heat treatment method and apparatus for turbine blades using flexible heater sleeve |
US5348212A (en) * | 1992-10-06 | 1994-09-20 | Commonwelth Edison | Welding method for rotatable shafts |
USRE37562E1 (en) | 1988-05-05 | 2002-02-26 | Siemens Westinghouse Power Corporation | Turbine system having more failure resistant rotors and repair welding of low alloy ferrous turbine components by controlled weld build-up |
EP1978112A1 (en) * | 2007-03-30 | 2008-10-08 | United Technologies Corporation | Systems and methods for providing localized heat treatment of gas turbine components |
US10440829B2 (en) | 2014-07-03 | 2019-10-08 | United Technologies Corporation | Heating circuit assembly and method of manufacture |
-
1980
- 1980-05-21 JP JP6649480A patent/JPS56163091A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58125673A (en) * | 1982-01-12 | 1983-07-26 | 新明和工業株式会社 | Diffusion joining method |
JPS6140624B2 (en) * | 1982-01-12 | 1986-09-10 | Shin Meiwa Ind Co Ltd | |
US4611744A (en) * | 1982-06-23 | 1986-09-16 | Refurbished Turbine Components Ltd. | Turbine blade repair |
US4613744A (en) * | 1983-08-02 | 1986-09-23 | Refurbished Turbine Components Limited | Methods of repair |
US4958431A (en) * | 1988-03-14 | 1990-09-25 | Westinghouse Electric Corp. | More creep resistant turbine rotor, and procedures for repair welding of low alloy ferrous turbine components |
USRE37562E1 (en) | 1988-05-05 | 2002-02-26 | Siemens Westinghouse Power Corporation | Turbine system having more failure resistant rotors and repair welding of low alloy ferrous turbine components by controlled weld build-up |
US5086968A (en) * | 1990-01-26 | 1992-02-11 | Sundstrand Corporation | Weld repairable combustor |
US5306897A (en) * | 1991-06-25 | 1994-04-26 | Turbine Blading Limited | Heat treatment method and apparatus for turbine blades using flexible heater sleeve |
US5280849A (en) * | 1992-10-06 | 1994-01-25 | Commonwealth Edison | Welding method for rotating shafts |
US5348212A (en) * | 1992-10-06 | 1994-09-20 | Commonwelth Edison | Welding method for rotatable shafts |
EP1978112A1 (en) * | 2007-03-30 | 2008-10-08 | United Technologies Corporation | Systems and methods for providing localized heat treatment of gas turbine components |
US8058591B2 (en) | 2007-03-30 | 2011-11-15 | United Technologies Corp. | Systems and methods for providing localized heat treatment of gas turbine components |
US10440829B2 (en) | 2014-07-03 | 2019-10-08 | United Technologies Corporation | Heating circuit assembly and method of manufacture |
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