TURBINE ROTOR AND PROCESS FOR PRODUCTION OF TURBINE ROTOR

A turbine rotor having proper strength and toughness and a process for production of the turbine rotor are provided without enhancing the production cost or prolonging the production time.  A turbine rotor configured by welding a rotor-constituting member for high-temperature use which consists of a...

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Main Authors NISHIMOTO, SHIN, KAWASAKI, KENJI, NAKANO, TAKASHI, MARUYAMA, KIMMITSU, FUKUNAGA, YOSHIAKI, SHIGE, TAKASHI
Format Patent
LanguageEnglish
French
Japanese
Published 15.04.2010
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Abstract A turbine rotor having proper strength and toughness and a process for production of the turbine rotor are provided without enhancing the production cost or prolonging the production time.  A turbine rotor configured by welding a rotor-constituting member for high-temperature use which consists of a high Cr steel to a rotor-constituting member for low-temperature use which consists of a low Cr steel, wherein the rotor-constituting member for high-temperature use consists of a high Cr steel having a nitrogen content of 0.02 mass% or above, and the filler metal used in welding the rotor-constituting member for high -temperature use to the rotor-constituent member for low -temperature use is a 9%Cr type filler metal having a nitrogen content of 0.025 mass% or below. La présente invention a pour objet un rotor de turbine ayant une résistance et une ténacité convenables et un procédé de production du rotor de turbine, sans augmentation du coût de production ni prolongation du temps de production. La présente invention concerne également un rotor à turbine conçu par soudage d'un organe de rotor pour une utilisation à haute température qui est composé d'un acier à haute teneur en Cr sur un organe de rotor pour une utilisation à basse température qui est composé d'un acier à faible teneur en Cr, l'organe de rotor pour une utilisation à haute température étant composé d'un acier à haute teneur en Cr ayant une teneur en azote de 0,02 % en masse ou plus, et le métal d'apport utilisé dans le soudage de l'organe de rotor pour une utilisation à haute température sur l'organe de rotor pour une utilisation à basse température étant un métal d'apport de type à 9 % de Cr ayant une teneur en azote de 0,025 % en masse ou moins.
AbstractList A turbine rotor having proper strength and toughness and a process for production of the turbine rotor are provided without enhancing the production cost or prolonging the production time.  A turbine rotor configured by welding a rotor-constituting member for high-temperature use which consists of a high Cr steel to a rotor-constituting member for low-temperature use which consists of a low Cr steel, wherein the rotor-constituting member for high-temperature use consists of a high Cr steel having a nitrogen content of 0.02 mass% or above, and the filler metal used in welding the rotor-constituting member for high -temperature use to the rotor-constituent member for low -temperature use is a 9%Cr type filler metal having a nitrogen content of 0.025 mass% or below. La présente invention a pour objet un rotor de turbine ayant une résistance et une ténacité convenables et un procédé de production du rotor de turbine, sans augmentation du coût de production ni prolongation du temps de production. La présente invention concerne également un rotor à turbine conçu par soudage d'un organe de rotor pour une utilisation à haute température qui est composé d'un acier à haute teneur en Cr sur un organe de rotor pour une utilisation à basse température qui est composé d'un acier à faible teneur en Cr, l'organe de rotor pour une utilisation à haute température étant composé d'un acier à haute teneur en Cr ayant une teneur en azote de 0,02 % en masse ou plus, et le métal d'apport utilisé dans le soudage de l'organe de rotor pour une utilisation à haute température sur l'organe de rotor pour une utilisation à basse température étant un métal d'apport de type à 9 % de Cr ayant une teneur en azote de 0,025 % en masse ou moins.
Author NISHIMOTO, SHIN
MARUYAMA, KIMMITSU
KAWASAKI, KENJI
FUKUNAGA, YOSHIAKI
SHIGE, TAKASHI
NAKANO, TAKASHI
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– fullname: SHIGE, TAKASHI
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DocumentTitleAlternate ROTOR DE TURBINE ET PROCÉDÉ DE PRODUCTION D'UN ROTOR DE TURBINE
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RelatedCompanies NISHIMOTO, SHIN
MARUYAMA, KIMMITSU
KAWASAKI, KENJI
FUKUNAGA, YOSHIAKI
SHIGE, TAKASHI
MITSUBISHI HEAVY INDUSTRIES, LTD
NAKANO, TAKASHI
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Snippet A turbine rotor having proper strength and toughness and a process for production of the turbine rotor are provided without enhancing the production cost or...
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SubjectTerms ALLOYS
BLASTING
CHEMISTRY
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
ENGINE PLANTS IN GENERAL
FERROUS OR NON-FERROUS ALLOYS
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HEATING
LIGHTING
MACHINE TOOLS
MACHINES OR ENGINES IN GENERAL
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
MECHANICAL ENGINEERING
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
STEAM ENGINES
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
WELDING
WORKING BY LASER BEAM
Title TURBINE ROTOR AND PROCESS FOR PRODUCTION OF TURBINE ROTOR
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