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71. 发明专利

JPS53108838A AUSTENITIC STAINLESS STEEL WELDED JOINT 失效
公开(公告)号：JPS53108838A
公开(公告)日：1978-09-22
申请号：JP2377977
申请日：1977-03-07
申请人： HITACHI LTD
发明人： ENOMOTO KUNIO , KOIKE HIROSHI , SHIMIZU TASUKU
IPC分类号： B23K9/23 , B23K33/00
摘要： PURPOSE:To provide the title welded joint in which generation of strain has been effectively controlled, by joining the bevel root part with the deposited metal of austenitic stainless steel and the remaining bevel with the deposited metal of martensitic stainless steel.

72. 发明专利

JPS5384836A HEAT TREATMENT METHOD OF INNER SURFACE SECTION PADDED PIPE 失效
公开(公告)号：JPS5384836A
公开(公告)日：1978-07-26
申请号：JP10577
申请日：1977-01-05
申请人： HITACHI LTD
发明人： ENOMOTO KUNIO , KOIKE HIROSHI , SHIMIZU TASUKU
IPC分类号： B23K31/00 , B23K9/04 , B23K31/02 , C21D1/62 , C21D9/08 , C21D9/50

73. 发明专利

JPS5285005A INDUCTION FURNACE 失效
公开(公告)号：JPS5285005A
公开(公告)日：1977-07-15
申请号：JP83476
申请日：1976-01-07
申请人： HITACHI LTD
发明人： FUKUDA YOSHIO , ISHIZUKI TOSHIO , ENOMOTO KUNIO , HIUGA SHIGEYUKI
IPC分类号： H05B6/42 , F27B14/06 , F27D1/12 , F27D11/06
摘要： PURPOSE:To effectively absorb heat expansion and contraction of a crucible or an induction furnace and prevent occurrence of cracks of the crucible by providing a cooling pipe in the wall of the crucible and rendering the thickness of a buffer layer layer.

74. 发明专利

JP2004211187A Method and apparatus for heat treatment of piping system 有权
公开(公告)号：JP2004211187A
公开(公告)日：2004-07-29
申请号：JP2003001696
申请日：2003-01-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , SAITO NOBORU , SAITO HIDEYO , HAYASHI SHOJI , ENOMOTO KUNIO
IPC分类号： C21D1/42 , C21D9/08 , C21D9/50
CPC分类号： Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide a heat treatment method of a piping system whereby the residual stress in a welded metal zone and a heat affected zone on the inside surface is converted into compressive stress; and a heat treatment apparatus used therefor. SOLUTION: After a piping system is constructed, a heating coil is wound at least twice around the outer surface of a pipeline 1a, and a cooling fluid is caused to flow through the pipeline with a cooling water circulation device 19. A high-frequency heating device equipped with the heating coil, an electric source 17, and a transformer 16 causes the temperature difference between the inner surface and outer surface of the pipeline. Based on the temperature of a heated zone detected by a thermocouple 22, a control unit 18 controls the temperature distributions in the peripheral and axial directions of the pipeline. COPYRIGHT: (C)2004,JPO&NCIPI

75. 发明专利

JP2003311481A Welding equipment 审中-公开
标题翻译：焊接设备
公开(公告)号：JP2003311481A
公开(公告)日：2003-11-05
申请号：JP2002112793
申请日：2002-04-16
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , ENOMOTO KUNIO , ANZAI HIDEYA , KAWAKAMI MITSUO , TSUJIMURA HIROSHI
IPC分类号： B23K9/29 , B23K31/00 , B23K37/00
摘要： PROBLEM TO BE SOLVED: To provide low-cost welding equipment in which the tensile residual stress of the surface of a weld zone is efficiently converted into compression.
SOLUTION: The welding equipment comprises: a torch 1 for Tungsten Inert Gas (TIG) welding supported on a carriage and connectable to a power source; an injection nozzle 21 supported on the carriage and supplying water to welded marks by means of the torch 1 for TIG welding; a suction nozzle 20 supported on the carriage and having a suction port at the outer periphery of the injection nozzle 21; a cooling medium supply hose 25 supplying water to the injection nozzle 21 by connecting the injection nozzle 21 to a water source; a suction pump providing suction force to the suction nozzle 20; and a container receiving the water sucked by means of the suction nozzle 20 through a cooling medium recovery hose 26 connected to the suction nozzle 20.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种低成本的焊接设备，其中焊接区域的表面的拉伸残余应力被有效地转化为压缩。焊接设备包括：支撑在托架上并连接到电源的钨惰性气体焊枪（TIG）焊枪; 喷嘴21，其支撑在滑架上，并通过用于TIG焊接的焊炬1向焊接标记供水; 支撑在滑架上并在喷嘴21的外周具有吸入口的吸嘴20; 冷却介质供给软管25，通过将喷嘴21连接到水源而向喷嘴21供水; 抽吸泵向吸嘴20提供吸力; 以及通过连接到吸嘴20的冷却介质回收软管26接收借助于吸嘴20吸入的水的容器。（C）2004，JPO

76. 发明专利

JP2003202395A FUEL TRANSPORT AND STORAGE CASK 审中-公开
公开(公告)号：JP2003202395A
公开(公告)日：2003-07-18
申请号：JP2002001947
申请日：2002-01-09
申请人： HITACHI LTD
发明人： HIRANO ATSUYA , DOUSHIYU IKUTAKE , SUGANO SATOSHI , ICHINOSE MASARU , ENOMOTO KUNIO
IPC分类号： G21C19/32 , G21F3/00 , G21F5/08 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To provide a fuel transport and storage cask capable of easily attaching and detaching shock absorbers and maintaining high sealing capability in collision and fire. SOLUTION: The fuel transport and storage cask comprises a shell body having a metal inner cylinder containing spent fuel, a cylindrical neutron shield contacting the inner cylinder outer surface and covering all but the ends and a metal outer cylinder covering the outer surface of the neutron shield, a bottom plate connected to the inner cylinder bottom, a lid connected to the inner cylinder top and sealing the internal space of the inner cylinder, a lower shock absorber attached to wrap the bottom plate and an upper shock absorber to wrap the inner cylinder top and the lid. At least one of the upper and the lower shock absorbers is separately structured to cover the whole inner cylinder ends and to have a cap with a large diameter than that of the neutron shield and a ring member placed in the middle of shell body, detachably connected in one to the cap and filled with the insulator. COPYRIGHT: (C)2003,JPO

77. 发明专利

JP2000343270A METHOD AND DEVICE FOR WELDING 失效
公开(公告)号：JP2000343270A
公开(公告)日：2000-12-12
申请号：JP15748799
申请日：1999-06-04
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YANAGIDA NOBUYOSHI , ENOMOTO KUNIO , ISHIZUKI TOSHIO , SHIMIZU SADAHITO , SUGANO SATOSHI
IPC分类号： B23K9/23 , B23K31/00 , B23K103/04 , G21D1/00
摘要： PROBLEM TO BE SOLVED: To reduce tensile residual stress by simple constitution by utilizing thermal shock strain. SOLUTION: By rapidly cooling a surface region whose temperature is raised by heat input of welding by jetting a coolant from a nozzle 11 to a region of the surface of a weld zone which is in the state of tensile stress, transient temperature difference is generated between the surface and a layer just under a surface layer. In this way, the tensile thermal shock stress is added on the surface layer, tensile strain is generated and also the surface layer is partially yielded. Next, by stopping cooling and raising the temperature, the thermal shock stress is eliminated. The surface of the weld zone is improved into a state where deformation is elastically recovered from the partially yield state and tensile stress is mitigated, or a compressive residual stress state.

78. 发明专利

JPH10160064A JOINT MADE OF SHAPE MEMORY ALLOY 失效
公开(公告)号：JPH10160064A
公开(公告)日：1998-06-16
申请号：JP31588296
申请日：1996-11-27
申请人： HITACHI LTD
发明人： AMANO KAZUO , ENOMOTO KUNIO
IPC分类号： G21C17/10 , F16L13/04
摘要： PROBLEM TO BE SOLVED: To suppress deterioration of fastening of a joint which may be caused by thermal cycle by bilaterally dividing a liner structure, forming a groove on a piping to be connected, and pressurizing the liners by means of force generated at the time of deformation of shape memory alloy for connection of the joint. SOLUTION: Shape memory alloy drivers 1a, 1b have such characteristics that they are reduced in diameters by heating. A tapered portion 3 and circumferential projections 4a, 4b are formed on an inner surface of a liner 2. After completing fastening, the liner 2 is pressurized into a groove 10 of a piping 8b. Restriction force due to thermal stress when temperature cycle is generated is received by portion being the liner 2 pressed into the groove of the piping 8b. This portion is not loosened because it has a surface area equivalent to the shape memory alloy driver 1b. The shape memory alloy driver 1a is fastened with its upper portion contact with the tapered portion 3 being much reduced in diameter, due to a structure where the tapered portion is formed on an end inner surface of the liner 2.

79. 发明专利

JPH10154678A CLEANING OF SEMICONDUCTOR WAFER 失效
公开(公告)号：JPH10154678A
公开(公告)日：1998-06-09
申请号：JP31448796
申请日：1996-11-26
申请人： HITACHI LTD
发明人： HIRANO KATSUHIKO , ENOMOTO KUNIO
IPC分类号： H01L21/304
摘要： PROBLEM TO BE SOLVED: To provide an equipment and a method for cleaning a semiconductor wafer so as to remove foreign matters in the required degree of pollution and obtain high degree of cleaning by generating cavitation in water or air in a simple way. SOLUTION: In water within a cleaning bath for cleaning a thin film substrate 62 such as a semiconductor wafer, or a LCD, etc., a high-pressure water jet blast accompanied by generation of cavitation bubble is ejected from a injection nozzle 61 to the thin film substrate 62 to clean foreign matters and dust adhering to the surface of the thin film substrate 62. In such a cleaning equipment, an angle θ made by the axial center of the blast ejected from the nozzle 61 and the wafer surface can be adjusted optionally between 0 to 90 degrees, and a nozzle driving mechanism in which a movable member is not immersed in water is provided.

80. 发明专利

JPH10118931A PREVENTIVE MAINTENANCE METHOD OF CYLINDRICAL STRUCTURE INSTALLED IN NUCLEAR REACTOR 失效
公开(公告)号：JPH10118931A
公开(公告)日：1998-05-12
申请号：JP27374696
申请日：1996-10-16
申请人： HITACHI LTD
发明人： ENOMOTO KUNIO , HIRANO KATSUHIKO , OTAKA MASAHIRO , HAYASHI EISAKU , SHIMIZU SADAHITO , MORINAKA TADASHI
IPC分类号： B24C1/10
摘要： PROBLEM TO BE SOLVED: To improve a residual tensile stress in the welded part of cylindrical structure equipment like the shroud in a nuclear reactor to a compressed residual stress by the peening action of the collapse pressure of a cavitation foam and prevent a stress corrosion cracking. SOLUTION: A preventive maintenance device 1 constituted by an upper attachment 15, a lower attachment 20, a frame 21, a nozzle head 8 mounted a nozzle 24 and a position welded line detection sensors 37, 38 and a parallel link 32 for connecting a nozzle drive part 10 with the nozzle head 8 is set in the cylindrical structure like a shroud in a nuclear reactor and a residual stress is improved by jetting the jet 25 of a high pressure water to the welded part. The high pressure water is generated by a high pressure pump 16 and the high pressure pump 16 and the preventive maintenance device 1 is controlled by a control board. The welded part of the cylindrical structure equipment like the shroud in the nuclear reactor, especially the tensile residual stress in the welded part of a corner and a narrow part is improve to the compressed residual stress.

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