JPS5793604A - Steam turbine rotor of steel containing 12% of chromium - Google Patents

Steam turbine rotor of steel containing 12% of chromium

Info

Publication number
JPS5793604A
JPS5793604A JP17059880A JP17059880A JPS5793604A JP S5793604 A JPS5793604 A JP S5793604A JP 17059880 A JP17059880 A JP 17059880A JP 17059880 A JP17059880 A JP 17059880A JP S5793604 A JPS5793604 A JP S5793604A
Authority
JP
Japan
Prior art keywords
chromium
turbine rotor
steel containing
journal
steam turbine
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
Application number
JP17059880A
Other languages
Japanese (ja)
Inventor
Masao Shiga
Seishin Kirihara
Takatoshi Yoshioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17059880A priority Critical patent/JPS5793604A/en
Publication of JPS5793604A publication Critical patent/JPS5793604A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To make difficult the wear of the journal of a turbine rotor made of steel containing 12% of chromium, by providing a quenched or nitriding layer on the surface of the journal.
CONSTITUTION: Before a turbine rotor 1 made of steel containing 12% of chromium is fitted in a bearing 7, high-frequency quenching or nitriding is effected on the surface part 3 of the journal 2 of the rotor so that the surface part is hardened with residual high compressive stress therein. This results in making it difficult for the journal 2 to wear.
COPYRIGHT: (C)1982,JPO&Japio
JP17059880A 1980-12-02 1980-12-02 Steam turbine rotor of steel containing 12% of chromium Pending JPS5793604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17059880A JPS5793604A (en) 1980-12-02 1980-12-02 Steam turbine rotor of steel containing 12% of chromium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17059880A JPS5793604A (en) 1980-12-02 1980-12-02 Steam turbine rotor of steel containing 12% of chromium

Publications (1)

Publication Number Publication Date
JPS5793604A true JPS5793604A (en) 1982-06-10

Family

ID=15907804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17059880A Pending JPS5793604A (en) 1980-12-02 1980-12-02 Steam turbine rotor of steel containing 12% of chromium

Country Status (1)

Country Link
JP (1) JPS5793604A (en)

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