JPS56148602A - Production of steam turbine rotor key way - Google Patents
Production of steam turbine rotor key wayInfo
- Publication number
- JPS56148602A JPS56148602A JP5163380A JP5163380A JPS56148602A JP S56148602 A JPS56148602 A JP S56148602A JP 5163380 A JP5163380 A JP 5163380A JP 5163380 A JP5163380 A JP 5163380A JP S56148602 A JPS56148602 A JP S56148602A
- Authority
- JP
- Japan
- Prior art keywords
- key way
- steam turbine
- wheel
- rotor
- key
- 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 cracking at a key way portion of a steam turbine rotor by peening the surface of the rotor key way to provide same with a compressive stress and then grinding the rotor key way surface to surface roughness lower than 5μm and a large compressive force.
CONSTITUTION: A wheel pin 5 is inserted in key ways 4 of a rotor shaft 1 and a wheel 2. The surface of each key way is subject to peening treatment to provide the same with a compression stress. Subsequently, it is ground to surface roughness lower than 5μm with sand paper or emery paper to provide the same with a compressive residual stress rather than a shearing force. By such a production method, the key ways involved in connecting the rotor shaft and the wheel of a steam turbine which are used in corrosive environment can be prevented from being cracked, thereby extending the life of the rotor shaft and the wheel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5163380A JPS56148602A (en) | 1980-04-21 | 1980-04-21 | Production of steam turbine rotor key way |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5163380A JPS56148602A (en) | 1980-04-21 | 1980-04-21 | Production of steam turbine rotor key way |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56148602A true JPS56148602A (en) | 1981-11-18 |
Family
ID=12892240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5163380A Pending JPS56148602A (en) | 1980-04-21 | 1980-04-21 | Production of steam turbine rotor key way |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56148602A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7473160B1 (en) * | 2006-08-09 | 2009-01-06 | S.E. Huffman Corp | Method and apparatus for grinding a workpiece |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52153007A (en) * | 1976-06-14 | 1977-12-19 | Mitsubishi Heavy Ind Ltd | Manufactuaring of turbine blade |
-
1980
- 1980-04-21 JP JP5163380A patent/JPS56148602A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52153007A (en) * | 1976-06-14 | 1977-12-19 | Mitsubishi Heavy Ind Ltd | Manufactuaring of turbine blade |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7473160B1 (en) * | 2006-08-09 | 2009-01-06 | S.E. Huffman Corp | Method and apparatus for grinding a workpiece |
US7699685B1 (en) | 2006-08-09 | 2010-04-20 | Huffman Corporation | Method and apparatus for grinding a workpiece |
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