JPS5516744A - 12% chrome steel turbine rotor - Google Patents

12% chrome steel turbine rotor

Info

Publication number
JPS5516744A
JPS5516744A JP8925278A JP8925278A JPS5516744A JP S5516744 A JPS5516744 A JP S5516744A JP 8925278 A JP8925278 A JP 8925278A JP 8925278 A JP8925278 A JP 8925278A JP S5516744 A JPS5516744 A JP S5516744A
Authority
JP
Japan
Prior art keywords
build
less
journal
turbine rotor
welded
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
JP8925278A
Other languages
Japanese (ja)
Inventor
Tetsuya Tsuchishida
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
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 filed Critical Fuji Electric Co Ltd
Priority to JP8925278A priority Critical patent/JPS5516744A/en
Publication of JPS5516744A publication Critical patent/JPS5516744A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053—Fe as the principal constituent
    • B23K35/3073—Fe as the principal constituent with Mn as next major constituent

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To improve the bearing characteristics of 12% Cr steel turbine rotor by cutting the journal section in the diameter less than it should be for build up welding metal excellent in the bearing characteristics and working the section thus welded into the required shape following a thermal treatment. CONSTITUTION:Journal sections 1A and 1B of a 12% Cr steel turbine rotor are cut into cylindrical shapes 2A and 2B in the diameter less than it should be. Metals 3A and 3B excellent in the bearing characteristics are build up welded on the surfaces of the journal sections thus cut after they are preheated up to 200 to 250 deg.C with a composition of 0.1 to 0.3% C, 1.5 to 2.0% Mn, 0.05 to 0.1% Cr, less than 0.3% Si, less than 0.03% P, and less than 0.03% S. Then, after heated up to 200 deg.C, the rotor is kept in the sections at 120 deg.C for 10 hours and in the entire part at 680 deg.C for 12 hours. After cooled down to 300 deg.C at a cooling rate of 5 deg.C/h, it is finished to the required journal dimension. Otherwise, prior to the afore-mentioned build up welding, a build up welded metal layer is formed with the same composition as mentioned above except for 0.08 to 0.16% C and 0.8 to 1.2% Mn.
JP8925278A 1978-07-21 1978-07-21 12% chrome steel turbine rotor Pending JPS5516744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8925278A JPS5516744A (en) 1978-07-21 1978-07-21 12% chrome steel turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8925278A JPS5516744A (en) 1978-07-21 1978-07-21 12% chrome steel turbine rotor

Publications (1)

Publication Number Publication Date
JPS5516744A true JPS5516744A (en) 1980-02-05

Family

ID=13965557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8925278A Pending JPS5516744A (en) 1978-07-21 1978-07-21 12% chrome steel turbine rotor

Country Status (1)

Country Link
JP (1) JPS5516744A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165603A (en) * 1981-04-03 1982-10-12 Hitachi Ltd Rotor shaft for steam turbine
US4566810A (en) * 1982-04-14 1986-01-28 Hitachi, Ltd. Steam turbine rotor shaft
JPH02161104A (en) * 1989-11-24 1990-06-21 Hitachi Ltd Manufacture of steam turbine rotor shaft
CN103659016A (en) * 2012-09-06 2014-03-26 日本铸锻钢株式会社 Making method of axis neck of 9-12% Cr steel turbine rotor and axis neck produced by the method
CN104526170A (en) * 2014-11-04 2015-04-22 南方增材科技有限公司 Electric smelting forming method for ultra-supercritical high intermediate pressure rotor
US9976197B2 (en) 2014-11-24 2018-05-22 Japan Casting & Forging Corporation Method for producing journal part of 9 to 12% Cr steel turbine rotor, and journal part produced by the method
JP7102640B1 (en) * 2022-02-28 2022-07-19 ヤマザキマザック株式会社 Additional manufacturing method, additional manufacturing system, and additional manufacturing program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017362A (en) * 1973-06-20 1975-02-24
JPS51105954A (en) * 1975-02-13 1976-09-20 Kennesu Haaree Donarudo

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017362A (en) * 1973-06-20 1975-02-24
JPS51105954A (en) * 1975-02-13 1976-09-20 Kennesu Haaree Donarudo

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3212185C3 (en) * 1981-04-03 1990-06-21 Hitachi Ltd STEAM TURBINE ROTOR SHAFT AND METHOD FOR THEIR PRODUCTION
DE3212185A1 (en) * 1981-04-03 1982-11-18 Hitachi, Ltd., Tokyo STEAM TURBINE ROTOR SHAFT
US4504554A (en) * 1981-04-03 1985-03-12 Hitachi, Ltd. Rotor shaft of steam turbine
DE3212185C2 (en) * 1981-04-03 1987-01-08 Hitachi, Ltd., Tokio/Tokyo Steam turbine rotor shaft and method for its manufacture
JPS6345483B2 (en) * 1981-04-03 1988-09-09 Hitachi Ltd
JPS57165603A (en) * 1981-04-03 1982-10-12 Hitachi Ltd Rotor shaft for steam turbine
US4566810A (en) * 1982-04-14 1986-01-28 Hitachi, Ltd. Steam turbine rotor shaft
JPH02161104A (en) * 1989-11-24 1990-06-21 Hitachi Ltd Manufacture of steam turbine rotor shaft
CN103659016A (en) * 2012-09-06 2014-03-26 日本铸锻钢株式会社 Making method of axis neck of 9-12% Cr steel turbine rotor and axis neck produced by the method
CN104526170A (en) * 2014-11-04 2015-04-22 南方增材科技有限公司 Electric smelting forming method for ultra-supercritical high intermediate pressure rotor
US9976197B2 (en) 2014-11-24 2018-05-22 Japan Casting & Forging Corporation Method for producing journal part of 9 to 12% Cr steel turbine rotor, and journal part produced by the method
JP7102640B1 (en) * 2022-02-28 2022-07-19 ヤマザキマザック株式会社 Additional manufacturing method, additional manufacturing system, and additional manufacturing program
WO2023162253A1 (en) * 2022-02-28 2023-08-31 ヤマザキマザック株式会社 Additive manufacturing method, additive manufacturing system, and additive manufacturing program

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