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    METHOD FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY
    1.
    发明申请
    METHOD FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY 有权
    改善管体残留应力的方法

    公开(公告)号：US20100326974A1

    公开(公告)日：2010-12-30

    申请号：US12521657

    申请日：2008-01-11

    申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

    发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

    IPC分类号： B23K26/02

    CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

    摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

    摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

    Method for improving residual stress in tubular body
    2.
    发明授权
    Method for improving residual stress in tubular body 有权
    改善管状体残余应力的方法

    公开(公告)号：US08637784B2

    公开(公告)日：2014-01-28

    申请号：US12521657

    申请日：2008-01-11

    申请人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

    发明人： Takahiro Ota ,  Kazuhiko Kamo ,  Itaru Muroya ,  Seiji Asada ,  Kazuhiro Wakabayashi ,  Koji Okimura ,  Hironori Onitsuka

    IPC分类号： B23K9/028

    CPC分类号： C21D1/34 ,  B23K26/282 ,  B23K31/027 ,  B23K31/125 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

    摘要： An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.

    摘要翻译： 本发明的目的是提供一种用于改善管状体中的残余应力的方法和装置，其能够通过在不依赖于管状体的安装状态和构造的情况下清楚地限定治疗条件的控制，从而可靠地改善残余应力。 当通过用激光束（5a）局部照射管状体（2）的焊接部分（C）的外周表面并且通过移动照射区域（s）来改善圆柱形管状体（2）的残余应力时 ），多个热电偶（9）被安装在管状体（2）上以提高，通过激光束（5a）的照射使管状体（2）的外表面的温度历史为 通过测量温度历史本身来管理。

    METHOD AND SYSTEM FOR IMPROVING RESIDUAL STRESS IN TUBE BODY
    3.
    发明申请
    METHOD AND SYSTEM FOR IMPROVING RESIDUAL STRESS IN TUBE BODY 审中-公开
    改善管体残余应力的方法和系统

    公开(公告)号：US20090302012A1

    公开(公告)日：2009-12-10

    申请号：US12295823

    申请日：2007-03-29

    申请人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

    发明人： Takahiro Ota ,  Yoshiyuki Hemmi ,  Hironori Onitsuka ,  Noriaki Sugimoto ,  Kazuhiko Kamo ,  Shuho Tsubota ,  Itaru Muroya

    IPC分类号： B23K26/20

    CPC分类号： C21D1/30 ,  B23K26/0626 ,  B23K26/0823 ,  B23K2101/06 ,  C21D1/34 ,  C21D9/08 ,  C21D9/50

    摘要： An object is to provide a method and a system for improving a residual stress in a tube body, with which the residual stress can reliably be improved without heating excessively. From an irradiation start angle θs to a first predetermined angle θ1 on the tube body, an intensity of a laser beam is gradually increased from 0.5 to the steady output of 1.0 output ratio; from the first predetermined angle θ1 to a second predetermined angle θ2, the intensity of the laser beam is set at 1.0 output ratio; from the second predetermined angle θ2 to an irradiation end angle θe, the intensity of the laser beam is gradually decreased from the 1.0 output ratio to 0.5; and at the irradiation end angle θe, the intensity of the laser beam is set to 0. All these steps are performed at one turn of rotation in the method and the system for improving residual stress in the tube body.

    摘要翻译： 本发明的目的是提供一种用于改善管体中的残余应力的方法和系统，通过该方法和系统可以可靠地改善残余应力而不会过度加热。 从照射起始角度到管体上的第一预定角度θ1，激光束的强度从0.5逐渐增加到1.0的输出比的稳定输出; 从第一预定角度θ1到第二预定角度θ2，将激光束的强度设定为1.0的输出比; 从第二预定角度θ2到照射端角θe，激光束的强度从1.0的输出比逐渐减小到0.5; 并且在照射端角θe处，激光束的强度被设定为0.所有这些步骤都是在该方法中的一圈旋转和用于改善管体中的残余应力的系统中进行的。

    Tip tool guide apparatus and method for bringing in tip tool guide apparatus
    6.
    发明授权
    Tip tool guide apparatus and method for bringing in tip tool guide apparatus 有权
    尖端刀具导向装置的引导装置及方法

    公开(公告)号：US07690234B2

    公开(公告)日：2010-04-06

    申请号：US11774982

    申请日：2007-07-09

    申请人： Norimasa Mori ,  Hironori Onitsuka ,  Jun Fujita ,  Takahiro Ohta ,  Yasumi Nagura ,  Yoshimasa Tukamoto ,  Osafumi Nakajima

    发明人： Norimasa Mori ,  Hironori Onitsuka ,  Jun Fujita ,  Takahiro Ohta ,  Yasumi Nagura ,  Yoshimasa Tukamoto ,  Osafumi Nakajima

    IPC分类号： C21D7/06

    CPC分类号： F22B37/005

    摘要： A tip tool guide apparatus is brought into a water chamber of a steam generator of nuclear power equipment, and guides a tip tool, such as a shot peening head, along a necessary region. For this purpose, a tip tool guide apparatus 1000 is composed of a swivel support portion 100, a slide table 200, and a manipulator 300. The swivel support portion 100 is self-supported and fixed within the water chamber, and turns the slide table 200 connected thereto. The slide table 200 connects the manipulator 300, and moves the manipulator 300 slidingly in a fore-and-aft direction. The manipulator 300 grasps the tip tool at its leading end. For bringing into the water chamber, the swivel support portion 100, the slide table 200, and the manipulator 300 are separated from each other, brought in individually, and assembled within the water chamber to constitute the tip tool guide apparatus 1000.

    摘要翻译： 引导工具引导装置被带入核电设备的蒸汽发生器的水室中，并沿着必要的区域引导诸如喷丸硬化头的尖端工具。 为此，尖端工具引导装置1000由旋转支撑部100，滑动台200和操纵器300构成。旋转支撑部100自支撑并固定在水室内，并使滑动台 200。 滑动台200连接机械手300，并使前后方向滑动地移动机械手300。 操纵器300在其前端抓握尖端工具。 为了进入水室，旋转支撑部分100，滑动台200和操纵器300彼此分离，单独引入并组装在水室中以构成尖端工具引导装置1000。

    APPARATUS FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY AND ADJUSTMENT METHOD OF THE SAME
    7.
    发明申请
    APPARATUS FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY AND ADJUSTMENT METHOD OF THE SAME 失效
    改善管体残留应力的装置及其调整方法

    公开(公告)号：US20100122972A1

    公开(公告)日：2010-05-20

    申请号：US12598804

    申请日：2008-05-30

    申请人： Shuho Tsubota ,  Takashi Ishide ,  Takashi Akaba ,  Hironori Onitsuka ,  Kenichi Kawanishi

    发明人： Shuho Tsubota ,  Takashi Ishide ,  Takashi Akaba ,  Hironori Onitsuka ,  Kenichi Kawanishi

    IPC分类号： B23K26/02

    CPC分类号： B23K26/0344 ,  B23K26/03 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0869 ,  B23K26/352 ,  B23K31/00 ,  B23K2101/06 ,  C21D1/30 ,  C21D1/34 ,  C21D9/08 ,  C21D9/50 ,  G02B6/422

    摘要： Aims are to provide a tubular-body residual-stress improving apparatus and an adjustment method thereof capable of adjusting irradiation position with favorable reproducibility, even when an optical fiber is eccentric. In the tubular-body residual-stress improving apparatus, an optical control unit (5) includes a rotational hold mechanism (9) for holding an optical fiber (6) in a manner that the optical fiber (6) is rotatable in a circumferential direction of the optical fiber (6), and, if a position of an intensity peak of the laser beam from the optical fiber (6) in an axial direction of the tubular body (2) is offset from the center of an irradiation profile, a position at which the optical fiber (6) is held in the circumferential direction is adjusted by the rotational hold mechanism (9) so as to eliminate the offset or to minimize an influence of the offset.

    摘要翻译： 目的在于提供即使在光纤偏心的情况下也能以良好的再现性调节照射位置的管状体残余应力改善装置及其调整方法。 在管状体残余应力改善装置中，光学控制单元（5）包括用于保持光纤（6）的旋转保持机构（9），使得光纤（6）能够沿圆周方向 ，并且如果来自所述光纤（6）的激光束在所述管状体（2）的轴向方向上的强度峰值的位置偏离所述照射轮廓的中心，则 通过旋转保持机构（9）调节光纤（6）在圆周方向上保持的位置，以消除偏移或使偏移的影响最小化。

    APPARATUS FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY
    9.
    发明申请
    APPARATUS FOR IMPROVING RESIDUAL STRESS IN TUBULAR BODY 审中-公开
    改善管体残留应力的装置

    公开(公告)号：US20100059491A1

    公开(公告)日：2010-03-11

    申请号：US12593459

    申请日：2008-03-26

    申请人： Shuho Tsubota ,  Takashi Ishide ,  Takashi Akaba ,  Hironori Onitsuka

    发明人： Shuho Tsubota ,  Takashi Ishide ,  Takashi Akaba ,  Hironori Onitsuka

    IPC分类号： B23K26/06 ,  G02B26/08

    CPC分类号： B23K26/0604 ,  B23K26/0608 ,  B23K31/027 ,  C21D1/09 ,  C21D1/30 ,  C21D9/08 ,  C21D9/50 ,  C21D11/00

    摘要： An aim is to provide a tubular-body residual-stress improving apparatus capable of reducing irradiation on unnecessary areas by controlling the optical paths of laser beams. In the tubular-body residual-stress improving apparatus, an optical control unit (5C) includes one pair of mirrors (21, 22) being disposed at a final stage of an optical system for a plurality of laser beams (P1-Pn) to be sharable and disposed in such a way that the mirrors are placed respectively at both sides, in the circumferential direction of the tubular body (2), of a final optical path of the laser beams to the tubular body (2), and another pair of mirrors (23, 24) being disposed at final stage of the optical system for the laser beams at both ends and disposed in such a way that the mirrors are placed respectively at both sides, in an axial direction of the tubular body (2), of final optical paths of the laser beams at both ends to the tubular body (2). Two pairs of mirrors (21-24) reflect inwards a skirting portion of the corresponding laser beam in the circumferential and axial direction of the tubular body (2) so as to irradiate the tubular body (2) with the laser beams.

    摘要翻译： 目的是提供一种能够通过控制激光束的光路来减少对不需要的区域照射的管状体残余应力改善装置。 在管状体残余应力改善装置中，光学控制单元（5C）包括一对反射镜（21,22），其设置在用于多个激光束（P1-Pn）的光学系统的最后阶段 可共享并且以这样的方式设置，使得反射镜分别在管状体（2）的圆周方向上分别放置在激光束到管状体（2）的最终光路中，另一对 的反射镜（23,24）设置在用于激光束的两端处的光学系统的最后阶段并且以这样的方式设置，使得反射镜分别位于管状体（2）的轴向方向上的两侧， ，两端的激光束的最终光路到达管状体（2）。 两对反射镜（21-24）在管状体（2）的周向和轴向方向上向内反射相应激光束的边缘部分，以便用激光束照射管状体（2）。