JPS57207115A - Annealing method for material of turbine rotor to relieve stress - Google Patents

Annealing method for material of turbine rotor to relieve stress

Info

Publication number
JPS57207115A
JPS57207115A JP9281981A JP9281981A JPS57207115A JP S57207115 A JPS57207115 A JP S57207115A JP 9281981 A JP9281981 A JP 9281981A JP 9281981 A JP9281981 A JP 9281981A JP S57207115 A JPS57207115 A JP S57207115A
Authority
JP
Japan
Prior art keywords
temp
base
steel
deposited
turbine rotor
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.)
Granted
Application number
JP9281981A
Other languages
Japanese (ja)
Other versions
JPH0114287B2 (en
Inventor
Yasunari Yoshie
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP9281981A priority Critical patent/JPS57207115A/en
Publication of JPS57207115A publication Critical patent/JPS57207115A/en
Publication of JPH0114287B2 publication Critical patent/JPH0114287B2/ja
Granted 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
    • C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies

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)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To relieve stress remaining in steel deposited to coat the surface of the base of a rotor by annealing the deposited coating layer while maintaining it at a temp. below the average temp. of the base. CONSTITUTION:A prescried part of a turbine rotor made of 12% Cr steel as base metal is coated with deposited steel having a higher coefft. of thermal expansion than the base metal. This coating layer 2 is then annealed while spraying air for cooling. During the end of the ennealing and the beginning of a cooling stage for returning to ordinary temp., the layer 2 is maintained at a temp. below the temp. of the base 1 of the rotor. Thus, stress remaining in the steel deposited to coat the surface of the base is relieved.
JP9281981A 1981-06-16 1981-06-16 Annealing method for material of turbine rotor to relieve stress Granted JPS57207115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9281981A JPS57207115A (en) 1981-06-16 1981-06-16 Annealing method for material of turbine rotor to relieve stress

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9281981A JPS57207115A (en) 1981-06-16 1981-06-16 Annealing method for material of turbine rotor to relieve stress

Publications (2)

Publication Number Publication Date
JPS57207115A true JPS57207115A (en) 1982-12-18
JPH0114287B2 JPH0114287B2 (en) 1989-03-10

Family

ID=14065030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9281981A Granted JPS57207115A (en) 1981-06-16 1981-06-16 Annealing method for material of turbine rotor to relieve stress

Country Status (1)

Country Link
JP (1) JPS57207115A (en)

Also Published As

Publication number Publication date
JPH0114287B2 (en) 1989-03-10

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