JPS57148005A - Device for preventing corrosion of moving vane cover - Google Patents

Device for preventing corrosion of moving vane cover

Info

Publication number
JPS57148005A
JPS57148005A JP3258581A JP3258581A JPS57148005A JP S57148005 A JPS57148005 A JP S57148005A JP 3258581 A JP3258581 A JP 3258581A JP 3258581 A JP3258581 A JP 3258581A JP S57148005 A JPS57148005 A JP S57148005A
Authority
JP
Japan
Prior art keywords
cover
blade
moving vane
rotor blade
corrosion
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
JP3258581A
Other languages
Japanese (ja)
Inventor
Hisao Ogata
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 JP3258581A priority Critical patent/JPS57148005A/en
Publication of JPS57148005A publication Critical patent/JPS57148005A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To prevent the corrosion and erosion of a moving vane cover for coating the fluid passage between the tips of rotor blade, by effecting the spraying or buildup welding of a Co-W alloy on the inlet side of the passage part of the rotor blade cover. CONSTITUTION:A cover 2 is integrally provided on a blade body 1 so that the cover is protruded from the back side 4 of the vane and its belly side. A Co-W alloy is sprayed or buildup-welded on the cover 2 to provide a corrosion-resisting coating layer 7 which extends from the front edge of the cover to the end of the width of an anticorrosive member 6 mounted on the belly side of the blade and extending from the intersection of the bottom of the cover and the back side of the blade. This results in preventing the errosion and cracking at the joint of the rotor blade cover 2.
JP3258581A 1981-03-09 1981-03-09 Device for preventing corrosion of moving vane cover Pending JPS57148005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3258581A JPS57148005A (en) 1981-03-09 1981-03-09 Device for preventing corrosion of moving vane cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3258581A JPS57148005A (en) 1981-03-09 1981-03-09 Device for preventing corrosion of moving vane cover

Publications (1)

Publication Number Publication Date
JPS57148005A true JPS57148005A (en) 1982-09-13

Family

ID=12362938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3258581A Pending JPS57148005A (en) 1981-03-09 1981-03-09 Device for preventing corrosion of moving vane cover

Country Status (1)

Country Link
JP (1) JPS57148005A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173301A (en) * 1984-02-17 1985-09-06 Hitachi Ltd Turbine moving blade
JPS6140402A (en) * 1984-08-02 1986-02-26 Toshiba Corp Moving blade cover
WO2017179711A1 (en) * 2016-04-14 2017-10-19 三菱日立パワーシステムズ株式会社 Steam turbine rotor blade, steam turbine, and method for manufacturing steam turbine rotor blade
JPWO2017179711A1 (en) * 2016-10-28 2019-04-25 三菱日立パワーシステムズ株式会社 Steam turbine blade, steam turbine, and method of manufacturing steam turbine blade

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60173301A (en) * 1984-02-17 1985-09-06 Hitachi Ltd Turbine moving blade
JPS6140402A (en) * 1984-08-02 1986-02-26 Toshiba Corp Moving blade cover
WO2017179711A1 (en) * 2016-04-14 2017-10-19 三菱日立パワーシステムズ株式会社 Steam turbine rotor blade, steam turbine, and method for manufacturing steam turbine rotor blade
CN108884718A (en) * 2016-04-14 2018-11-23 三菱日立电力系统株式会社 The manufacturing method of steam turbine blade, steam turbine and steam turbine blade
CN108884718B (en) * 2016-04-14 2021-01-05 三菱动力株式会社 Steam turbine rotor blade, steam turbine, and method for manufacturing steam turbine rotor blade
JPWO2017179711A1 (en) * 2016-10-28 2019-04-25 三菱日立パワーシステムズ株式会社 Steam turbine blade, steam turbine, and method of manufacturing steam turbine blade

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