JPS57305A - Method of making keyway of steam turbine rotor - Google Patents

Method of making keyway of steam turbine rotor

Info

Publication number
JPS57305A
JPS57305A JP7320680A JP7320680A JPS57305A JP S57305 A JPS57305 A JP S57305A JP 7320680 A JP7320680 A JP 7320680A JP 7320680 A JP7320680 A JP 7320680A JP S57305 A JPS57305 A JP S57305A
Authority
JP
Japan
Prior art keywords
wheel
shaft
keyway
steam turbine
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.)
Pending
Application number
JP7320680A
Other languages
Japanese (ja)
Inventor
Kenichi Usami
Seishin Kirihara
Takao Mizoi
Masao Shiga
Mitsuo Kuriyama
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 JP7320680A priority Critical patent/JPS57305A/en
Publication of JPS57305A publication Critical patent/JPS57305A/en
Pending legal-status Critical Current

Links

Landscapes

  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To reduce erosion, by applying an explosion pressure welding method to clad an erosion-resisting material on the surface of keyway-made portions of a rotor shaft and a wheel which is fitted thereon.
CONSTITUTION: In a steam turbine rotor, a wheel 2 is fitted on a rotor shaft 1 and a key 5 is inserted into keyways 4 made in the shaft 1 and the wheel 2. The wheel 2 is thus secured on the shaft 1. A conjoined material 8 such as austenitic stainless steel, which excels in corrosion resistance and notch sensitivity and whose erosion resistance is higher than that of the material of the shaft 1 and the wheel 2, is previously cladded on at least the keyway-made portions of the shaft 1 and the wheel 2 by an explosion pressure welding method. The keyways 4 are made in the conjoined material 8 cladded. The rotor shaft 1 and the wheel 2 excellent in erosion resistance are thus provided.
COPYRIGHT: (C)1982,JPO&Japio
JP7320680A 1980-05-30 1980-05-30 Method of making keyway of steam turbine rotor Pending JPS57305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7320680A JPS57305A (en) 1980-05-30 1980-05-30 Method of making keyway of steam turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7320680A JPS57305A (en) 1980-05-30 1980-05-30 Method of making keyway of steam turbine rotor

Publications (1)

Publication Number Publication Date
JPS57305A true JPS57305A (en) 1982-01-05

Family

ID=13511438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7320680A Pending JPS57305A (en) 1980-05-30 1980-05-30 Method of making keyway of steam turbine rotor

Country Status (1)

Country Link
JP (1) JPS57305A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0245459A (en) * 1988-06-22 1990-02-15 Shell Internatl Res Maatschappij Bv Acrylonitrile derivatives with herbicidal activity
JP6203438B1 (en) * 2017-01-31 2017-09-27 株式会社ホタニ Roll shaft for brush roll and brush roll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0245459A (en) * 1988-06-22 1990-02-15 Shell Internatl Res Maatschappij Bv Acrylonitrile derivatives with herbicidal activity
JP6203438B1 (en) * 2017-01-31 2017-09-27 株式会社ホタニ Roll shaft for brush roll and brush roll
WO2018142639A1 (en) * 2017-01-31 2018-08-09 株式会社ホタニ Roll shaft for brush roll, and brush roll
US10800007B2 (en) 2017-01-31 2020-10-13 Hotani Co., Ltd. Roll shaft for brush roll and brush roll

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