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    • 1. 发明专利
    • Crack development testing method and device
    • 裂纹开发测试方法和设备
    • JP2010008147A
    • 2010-01-14
    • JP2008165864
    • 2008-06-25
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOSAITO TOSHIYUKIHAYASHI TAKAHIRONARASAKI CHIHIRO
    • G01N3/08
    • PROBLEM TO BE SOLVED: To provide a specific testing method and device capable of performing testing without any influence of bending moment generated by applying forced displacement to the edge of a specimen having a crack at one side in a crack development testing method and device for making a crack to develop while maintaining a stress intensity factor fixedly.
      SOLUTION: In the crack development testing method of a flat specimen 1 where cracks 2 are formed at one side, one end of the specimen 1 is fixed on a top board 6 and the other end is fixed to a crosshead 11 capable of traveling vertically, the crosshead 11 is lowered while guiding both the ends of the crosshead 11 by a post 12, and fixed displacement 4 is given to the specimen 1, thus maintaining a stress intensity factor fixedly and allowing the cracks to develop.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种特定的测试方法和装置,其能够在裂纹开发测试方法中在一侧具有裂纹的边缘施加强制位移而产生的弯矩的任何影响而进行测试,以及 用于使裂纹发展的装置,同时固定地保持应力强度因子。 解决方案:在一侧形成有裂纹2的扁平试样1的裂纹开发试验方法中,试样1的一端固定在顶板6上,另一端固定在能够 在十字头11的两端部由柱12引导的同时,十字头11下降,向样本1施加固定位移4,因此固定地保持应力强度因子并使裂缝发展。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Device and method for magnetic peening
    • 用于磁性接合的装置和方法
    • JP2011206888A
    • 2011-10-20
    • JP2010077524
    • 2010-03-30
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOOGAWA TAKUYASAITO TOSHIYUKIDOBASHI KENTARONARASAKI CHIHIRO
    • B24C1/10B24C3/32B24C7/00B24C11/00G21D1/00
    • C21D7/06
    • PROBLEM TO BE SOLVED: To provide a magnetic peening device and a magnetic peening method in which stress corrosion cracking (SCC) is prevented from occurring by improving a stress condition of an inner surface of a pipe made of a nonmagnetic material.SOLUTION: The magnetic peening device 10 includes a steel ball 20 provided inside the pipe 1 of the nonmagnetic material, electromagnets 11 arranged around the outer periphery of the pipe 1, generating a magnetic force with power supply and attracting the steel ball 20 to hit a position on an inner surface of the pipe 1 corresponding to a position of a powered electromagnet with the steel ball 20, a power source 12 for supplying power to the electromagnet when electrically connected with the electromagnet, a relay switch 13 for switching electrical connection between the each electromagnet and the power source 12, a control unit 14 for controlling the relay switch 13 to electrically connect the power source 12 with part of the electromagnets 11, and switching the electromagnet to be electrically connected with the power source 12 in prescribed order. The control unit 14 controls the relay switch 13 to switch the electromagnet to be powered in the prescribed order, which moves the position hit with the steel ball 20 on the inner surface of the pipe 1.
    • 要解决的问题:提供一种通过改善由非磁性材料制成的管的内表面的应力条件来防止发生应力腐蚀开裂(SCC)的磁性喷丸装置和磁性喷丸处理方法。解决方案:磁性 喷丸装置10包括设置在非磁性材料的管1内的钢球20,围绕管1的外周布置的电磁体11,通过电源产生磁力并吸引钢球20击中内侧的位置 对应于钢球20的动力电磁铁的位置的管道1的表面,用于在与电磁体电连接时向电磁体供电的电源12,用于切换每个电磁体与电磁体之间的电连接的继电器开关13 电源12,控制单元14,用于控制继电器开关13将电源12与电磁场的一部分电连接 ts 11,并且以规定的顺序切换要与电源12电连接的电磁体。 控制单元14控制继电器开关13,以规定的顺序切换要供电的电磁体,该电磁铁将钢球20的位置移动到管1的内表面。
    • 3. 发明专利
    • Apparatus, method and program for destructive evaluation of piping
    • 管道破坏性评估的装置,方法和程序
    • JP2011027493A
    • 2011-02-10
    • JP2009171961
    • 2009-07-23
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOOGAWA TAKUYASAITO TOSHIYUKINARASAKI CHIHIRO
    • G01N3/20
    • PROBLEM TO BE SOLVED: To provide a realistic and rational technique for destructive evaluation of piping, by excluding excess conservativeness when evaluating the soundness of piping.
      SOLUTION: A piping destructive evaluation apparatus includes a setter 24 for setting any cross-section to be evaluated, a setter 26 for setting a crack region present in the cross-section, a setter 28 for setting a neutral axis to a bending moment acting on the piping, an alteration part 29 for altering the orientation of the neutral axis, a computation part 30 for computing a fracture mechanics parameter along the front edge of the crack when a bending moment corresponding to the neutral axis acts, a detection unit 32 for detecting a local maximum value of a distribution curve of the fracture mechanics parameter, a selection part 33 for selecting a neutral axis for evaluation in which the local maximum value can take a maximum value, and an evaluation part 33 for evaluating fracture due to the action of the bending moment corresponding to the neutral axis for evaluation.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种现实合理的管道破坏性评估技术,通过在评估管道的稳定性时排除过剩的保守性。 解决方案:管道破坏性评估装置包括用于设定要评估的横截面的安装器24,用于设定横截面中存在的裂纹区域的设定器26,用于将中性轴设定为弯曲的设定器28 作用在管道上的力矩,用于改变中性轴线方向的改变部分29,用于当与中性轴对应的弯矩作用时计算沿裂纹前缘的断裂力学参数的计算部分30;检测单元 32,用于检测断裂力学参数的分布曲线的局部最大值;选择部分33,用于选择局部最大值可以获得最大值的评估中性轴;以及评估部33,用于评估由于 对应于中性轴的弯矩的作用用于评估。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Method for preventing development of cracks of piping
    • 防止管道裂纹发展的方法
    • JP2011174541A
    • 2011-09-08
    • JP2010039223
    • 2010-02-24
    • Toshiba Corp株式会社東芝
    • ITO MIKIRONARASAKI CHIHIROTANAKA NORIHIKOSAITO TOSHIYUKI
    • F16L55/18G21D1/00
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a method for preventing development of cracks of piping that is easily adopted regardless of installation conditions of the piping, and prevents development of the cracks due to environmental assisted cracking such as stress corrosion cracking or corrosion fatigue.
      SOLUTION: The method for preventing development of the cracks of the piping includes: arranging a pressing load device 31 on an outer face side 25c of a portion 28 where the cracks occur on the piping 25 having the cracks 27 on an inner face 25b side; and performing a periodic load, which consists of a pressing load process and a pressing load-removing process, onto the outer face side 25c on the piping 25 by the pressing load device 31.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种防止管道裂纹发展的方法,无论管道的安装条件如何,容易采用,并且防止由于诸如应力腐蚀开裂或腐蚀疲劳的环境辅助裂纹引起的裂纹的展开 。 解决方案:用于防止管道裂纹发展的方法包括:将挤压负载装置31布置在内表面上具有裂缝27的管道25上出现裂纹的部分28的外表面25c上 25b边 并且通过压力负载装置31对管道25上的外表面25c执行包括压力加载过程和按压卸载过程的周期性负载。(C)2011年,JPO和INPIT
    • 5. 发明专利
    • Crack development prediction system and method
    • 裂缝发展预测系统和方法
    • JP2014002074A
    • 2014-01-09
    • JP2012138196
    • 2012-06-19
    • Toshiba Corp株式会社東芝
    • ITO MIKIROSUMIYA RIENARASAKI CHIHIROSAITO TOSHIYUKI
    • G01M99/00
    • PROBLEM TO BE SOLVED: To allow development of a crack generated on a plant structure to be highly accurately predicted.SOLUTION: A crack development prediction system includes: a potentiometry method measurement system 31 for measuring a potential difference in the vicinity of a crack of reactor primary system piping 21 during plant operation; a strain measurement system 32 for measuring a strain value in the vicinity of the crack of the piping during the plant operation; and an operation device 33 comprising a residual stress value calculation section 34, an evaluation residual stress distribution generation section 35, a stress intensity factor calculation section 36 and a crack development amount prediction operation section 37. The residual stress value calculation section 34 calculates a residual stress value of a leading end of the crack on the basis of a crack shape calculated by potential difference data measured, strain value data measured or the like. The evaluation residual stress distribution generation section 35 obtains an evaluation residual stress distribution by using the residual stress value. The stress intensity factor calculation section 36 calculates a stress intensity factor of any position of the crack on the basis of the evaluation residual stress distribution or the like. The crack development amount prediction operation section 37 obtains a crack development speed determined by a correlation with the stress intensity factor, performs an operation of a crack development amount during a plant in-service period and predicts the crack development amount.
    • 要解决的问题:允许开发在植物结构上产生的裂纹被高度准确预测。解决方案:裂纹发展预测系统包括:电位法测量系统31,用于测量反应堆裂缝附近的电位差 工厂运行时的主系统管路21; 用于在工厂操作期间测量管道裂纹附近的应变值的应变测量系统32; 以及包括残余应力值计算部34,评价残余应力分布生成部35,应力强度因子计算部36和裂纹展开量预测运算部37的操作装置33。 基于通过测量的电位差数据计算的裂纹形状,测量的应变值数据等,产生裂纹前端的应力值。 评价残余应力分布生成部35通过使用残余应力值来求出评价残留应力分布。 应力强度因子计算部36基于评价残余应力分布等计算裂纹的任意位置的应力强度因子。 裂纹发展量预测运算部37求出与应力强度因子的相关性所决定的裂纹扩展速度,进行工厂使用期间的裂纹扩展量的操作,并预测裂纹扩展量。
    • 7. 发明专利
    • Method and device for bending fracture test
    • 用于弯曲试验的方法和装置
    • JP2010025573A
    • 2010-02-04
    • JP2008183682
    • 2008-07-15
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOSAITO TOSHIYUKIHAYASHI TAKAHIRONARASAKI CHIHIRO
    • G01N3/20G01N3/04
    • PROBLEM TO BE SOLVED: To easily acquire the minimum value of bending fracture strength even with respect to a test target asymmetric in its cross-sectional shape.
      SOLUTION: In a bending fracture test method allowing load F to act across support members 11 from a loading member to subject the test target 1 supported on a pair of the support members to bending deformation and acquiring the bending fracture strength of the test target, the test target is rotated around its axis when the load is allowed to act on the test target, and the load is increased when the maximum bending direction 4 produced in the test target is allowed to coincide with the acting axis 3 of the load to acquire the minimum value of the bending fracture strength of the test target from the load upon failure of the test target.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了容易地获得弯曲断裂强度的最小值,即使对于其横截面形状不对称的测试目标。 解决方案:在弯曲断裂测试方法中,允许载荷F从装载构件作用在支撑构件11上,以承受支撑在一对支撑构件上的测试目标1弯曲变形并获得测试的弯曲断裂强度 目标,当允许负载作用在测试目标上时,测试目标绕其轴线旋转,并且当测试目标中产生的最大弯曲方向4被允许与负载的作用轴3重合时,负载增加 从测试对象失效时的负载中获取测试对象的弯曲断裂强度的最小值。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Method and device for suppressing crack extension in pipe
    • 用于抑制管道中裂纹扩展的方法和装置
    • JP2012097863A
    • 2012-05-24
    • JP2010247736
    • 2010-11-04
    • Toshiba Corp株式会社東芝
    • ITO MIKIROITAYA MASAONARASAKI CHIHIROSAITO TOSHIYUKI
    • F16L57/00G21D1/00
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To suppress crack extension due to stress corrosion cracking or environmental assisted cracking such as corrosion fatigue in a pipe such as a reactor primary system pipe during an operation period of a plant.SOLUTION: A method for suppressing crack extension in a pipe suppresses the crack extension due to the stress corrosion cracking or the environmental assisted cracking such as the corrosion fatigue, which are produced in the reactor primary system pipes 27, 29, 31, 33, 34 in a nuclear power plant 10. During operation stop of the nuclear power plant 10, pressure is applied to a pipe in which a crack has occurred, from a pressurizing mechanism 41. In this state, a local area where the crack exsists in the pipe is heated by a local heating source 42.
    • 要解决的问题是:在工厂的运转期间,抑制由于应力腐蚀开裂或环境辅助裂纹(例如反应器主系统管等管道中的腐蚀疲劳)引起的裂纹扩展。 解决方案:用于抑制管道中裂纹扩展的方法抑制了由于应力腐蚀开裂或环境辅助裂纹(例如在反应器主系统管道27,29,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,31,3 在核电站10的运行停止期间,从加压机构41向发生裂缝的管道施加压力。在这种状态下,裂纹存在的局部区域 在管道中由局部加热源42加热。版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Welding method
    • 焊接方法
    • JP2012000618A
    • 2012-01-05
    • JP2010135090
    • 2010-06-14
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOOGAWA TAKUYASAITO TOSHIYUKIDOBASHI KENTARONARASAKI CHIHIROSUMIYA RIE
    • B23K9/12B23K9/00B23K9/167B23K26/20
    • PROBLEM TO BE SOLVED: To provide a welding method that controls a generation or development of a stress corrosion cracking (SCC) and also prevents a weld cracking, in a simple manner.SOLUTION: In the welding method, a steel stock 1 is arc-welded by using a welding rod 2 formed of a nickel base alloy and a welding torch 5, wherein the welding rod 2 is rotated at high speed and fed in a welding pool 3 that is melted by an arc 6. Since a deposited metal 4 formed in the process is agitated by the rotation of the welding rod 2 until just before the solidification, the crystalline structure direction thereof is prevented from being oriented in one direction, thereby forming a solidification structure having a randomness in the deposited metal.
    • 要解决的问题:提供一种控制应力腐蚀开裂(SCC)的产生或发展的焊接方法,并且也以简单的方式防止焊接裂纹。 解决方案:在焊接方法中,钢坯1通过使用由镍基合金形成的焊条2和焊炬5进行电弧焊接,其中焊条2高速旋转并进给 由电弧熔化的焊池3.由于在该工序中形成的沉积金属4通过焊条2的旋转直到刚好凝固之前被搅动,因此防止其晶体结构方向在一个方向上取向, 从而形成在沉积的金属中具有随机性的凝固结构。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Destructive evaluation device, method and program of member
    • 破坏性评估装置,方法和会员方案
    • JP2011038778A
    • 2011-02-24
    • JP2009183400
    • 2009-08-06
    • Toshiba Corp株式会社東芝
    • ITAYA MASAOOGAWA TAKUYASAITO TOSHIYUKIDOBASHI KENTARONARASAKI CHIHIRO
    • G01N3/00
    • PROBLEM TO BE SOLVED: To provide a destructive evaluation technology of high reliability and that can conservatively evaluate the fracture strength of a member with a crack.
      SOLUTION: The destructive evaluation device of a member includes an update part 61 for virtually setting a progressing crack and updating the crack with gradually enlarging the crack; a calculation part 42 for calculating an ultimate load to cause plastic collapse of the member; a first comparison part 43 for comparing the ultimate load with a load to determine danger or safe, with respect to possibility of the plastic collapse; a function part 63 outputting a J-integration corresponding to the updated progressing crack; an inverse calculation part 52 for inverse-calculating a corresponding destructive load by substituting the output J-integration; a second comparison part 53 comparing a maximal value among the inverse-calculated destructive loads with the load; and a result output part 64 for authorizing acceptance, when the first comparison part 43, as well as, the second comparison part 53 determine as being safe.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供高可靠性的破坏性评估技术,并且可以保守评估具有裂纹的构件的断裂强度。 解决方案:构件的破坏性评估装置包括:用于实际设定进行中的裂纹的更新部61,并且逐渐扩大裂缝来更新裂缝; 计算部件42,用于计算引起部件塑性倒塌的极限载荷; 第一比较部分43,用于将极限载荷与负载进行比较以确定危险或安全;关于塑性破裂的可能性; 输出对应于更新的进行裂纹的J积分的函数部63; 逆计算部52,用于通过代入输出J积分反相计算相应的破坏性负载; 第二比较部分53将逆计算的破坏性载荷中的最大值与载荷进行比较; 以及当第一比较部分43以及第二比较部分53确定为安全时,用于授权接受的结果输出部分64。 版权所有(C)2011,JPO&INPIT