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 | , , , , , |
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Format | Patent |
Language | English 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. |
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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 |
Author_xml | – fullname: NISHIMOTO, SHIN – fullname: KAWASAKI, KENJI – fullname: NAKANO, TAKASHI – fullname: MARUYAMA, KIMMITSU – fullname: FUKUNAGA, YOSHIAKI – 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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