JPS5538968A - Heat treating method for turbine rotor - Google Patents

Heat treating method for turbine rotor

Info

Publication number
JPS5538968A
JPS5538968A JP11230678A JP11230678A JPS5538968A JP S5538968 A JPS5538968 A JP S5538968A JP 11230678 A JP11230678 A JP 11230678A JP 11230678 A JP11230678 A JP 11230678A JP S5538968 A JPS5538968 A JP S5538968A
Authority
JP
Japan
Prior art keywords
temps
journal
drum
turbine rotor
hardening
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
JP11230678A
Other languages
Japanese (ja)
Inventor
Masayuki Yamada
Matsuo Miyazaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11230678A priority Critical patent/JPS5538968A/en
Publication of JPS5538968A publication Critical patent/JPS5538968A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To enhance the high temp. strength of a turbine rotor by setting a partition plate between the drum of the rotor and each journal or each journal and each coupling to differently heat treating the partitioned parts. CONSTITUTION:Turbine rotor 1 is placed in treating furnace 3, and shielding plate 6 is set between drum 4 and each journal 5 or each journal 5 and each coupling 7 to differently heat treat shielded parts 4, 5. For example, the hardening temps. of drum 4 and journals 5 are 970 deg.C and 900 deg.C, the hardening cooling rates 100 deg.C/min and 160 deg.C/min, and the tempering temps. 650 deg.C and 650 deg.C, respectively. The hardening temps. of drum 4 and journals 5, and couplings 7 may be 840 deg.C and 840 deg.C, and the tempering temps. 605 deg.C and 550 deg.C, respectively. Thus, the FATT value for evaluating the toughness of the material is reduced to prevent the toughness from lowering at service temps.
JP11230678A 1978-09-14 1978-09-14 Heat treating method for turbine rotor Pending JPS5538968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11230678A JPS5538968A (en) 1978-09-14 1978-09-14 Heat treating method for turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11230678A JPS5538968A (en) 1978-09-14 1978-09-14 Heat treating method for turbine rotor

Publications (1)

Publication Number Publication Date
JPS5538968A true JPS5538968A (en) 1980-03-18

Family

ID=14583366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11230678A Pending JPS5538968A (en) 1978-09-14 1978-09-14 Heat treating method for turbine rotor

Country Status (1)

Country Link
JP (1) JPS5538968A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213443A2 (en) * 2000-12-08 2002-06-12 General Electric Company A high strength steam turbine rotor and it's methods of fabricating
EP2848706A1 (en) * 2013-09-13 2015-03-18 Kabushiki Kaisha Toshiba Method of manufacturing rotor to be used for steam turbine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213443A2 (en) * 2000-12-08 2002-06-12 General Electric Company A high strength steam turbine rotor and it's methods of fabricating
EP1213443B1 (en) * 2000-12-08 2009-03-11 General Electric Company A high strength steam turbine rotor with a low susceptibility to stress corrosion cracking and it's methods of fabricating
EP2848706A1 (en) * 2013-09-13 2015-03-18 Kabushiki Kaisha Toshiba Method of manufacturing rotor to be used for steam turbine
CN104451086A (en) * 2013-09-13 2015-03-25 株式会社东芝 Method of manufacturing rotor to be used for steam turbine
JP2015078426A (en) * 2013-09-13 2015-04-23 株式会社東芝 Manufacturing method of rotor for steam turbine
EP3141620A1 (en) * 2013-09-13 2017-03-15 Kabushiki Kaisha Toshiba Method of manufacturing rotor to be used for steam turbine
EP3144398A1 (en) * 2013-09-13 2017-03-22 Kabushiki Kaisha Toshiba Method of manufacturing rotor to be used for steam turbine
CN104451086B (en) * 2013-09-13 2017-06-13 株式会社东芝 The manufacture method of steamturbine rotor

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