JPS57105502A - Rotor made of 12% chrome steel - Google Patents
Rotor made of 12% chrome steelInfo
- Publication number
- JPS57105502A JPS57105502A JP17897280A JP17897280A JPS57105502A JP S57105502 A JPS57105502 A JP S57105502A JP 17897280 A JP17897280 A JP 17897280A JP 17897280 A JP17897280 A JP 17897280A JP S57105502 A JPS57105502 A JP S57105502A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- way
- chrome steel
- low
- steel
- 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 protect a bearing portion and a coupling portion of a rotor for a steam turbine from damages, by joining the central portion of the rotor made of 12% chrome steel and opposite end portions made of a low-alloy steel together by way of electroslug remelting process, and thereby eliminating problems caused by a rotor structure obtained by way of shrinkage fit process.
CONSTITUTION: A rotor disk portion is made of 12% chrome steel 11 while the portion of the rotor near a bearing and a coupling portion are made of a low- alloy steel 9 by way of forging. Here, the above two parts of the rotor are coupled together at a joining portion 10 by way of electroslug remelting process. By thus manufacturing the rotor, the bearing portion and the coupling portion can be protected against damages since they are made of the low- alloy steel 9 excellent in its friction characteristics, and at the same time, to increase the strength of the disk portion since it is made of 12% chrome steel excellent in resisting a high temperature and a high stress.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17897280A JPS57105502A (en) | 1980-12-19 | 1980-12-19 | Rotor made of 12% chrome steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17897280A JPS57105502A (en) | 1980-12-19 | 1980-12-19 | Rotor made of 12% chrome steel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105502A true JPS57105502A (en) | 1982-07-01 |
Family
ID=16057872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17897280A Pending JPS57105502A (en) | 1980-12-19 | 1980-12-19 | Rotor made of 12% chrome steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105502A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5524019A (en) * | 1992-06-11 | 1996-06-04 | The Japan Steel Works, Ltd. | Electrode for electroslag remelting and process of producing alloy using the same |
-
1980
- 1980-12-19 JP JP17897280A patent/JPS57105502A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5524019A (en) * | 1992-06-11 | 1996-06-04 | The Japan Steel Works, Ltd. | Electrode for electroslag remelting and process of producing alloy using the same |
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