公开(公告)号：US06539035B1

公开(公告)日：2003-03-25

申请号：US09429728

申请日：1999-10-29

申请人： Masaki Yoda ,  Yuji Sano ,  Naruhiko Mukai ,  Koki Okazaki

发明人： Masaki Yoda ,  Yuji Sano ,  Naruhiko Mukai ,  Koki Okazaki

IPC分类号： H01S330

CPC分类号： G02B27/0927 ,  G02B6/4206 ,  G02B6/4296 ,  G02B27/09 ,  G02B27/0961 ,  G02B27/48 ,  H04B10/50

摘要： A laser transmission system for transmitting laser beam to an optical fiber comprises a pulse laser oscillator unit, a beam guide unit having an optical condensing unit for condensing a pulse laser beam radiated from the pulse laser oscillator unit, an optical fiber unit for transmitting the pulse laser beam condensed by the optical fiber beam guide unit, and a device for reducing a coherence of the pulse laser beam provided for at least one of the pulse laser oscillator unit, the beam guide unit and the optical fiber unit. This coherence reducing device is for making substantially uniform distribution of laser beams at a beam entrance portion of the optical fiber unit and preventing the laser beams from focussing or converging on one point in the optical fiber unit.

摘要翻译： 一种用于将激光束传输到光纤的激光传输系统包括脉冲激光振荡器单元，具有用于聚集从脉冲激光振荡器单元辐射的脉冲激光束的聚光单元的光束引导单元，用于发送脉冲的光纤单元 由光纤束引导单元聚光的激光束，以及用于降低为脉冲激光振荡器单元，光束引导单元和光纤单元中的至少一个提供的脉冲激光束的相干性的装置。 该相干降低装置用于使激光束在光纤单元的光束入口部分上的分布基本均匀，并且防止激光束聚焦或会聚在光纤单元中的一个点上。

公开(公告)号：US06881925B1

公开(公告)日：2005-04-19

申请号：US09367060

申请日：1998-12-09

申请人： Katsuhiko Sato ,  Motohiko Kimura ,  Yuji Sano ,  Mitsuaki Shimamura ,  Hiroaki Igakura ,  Makoto Ochiai ,  Naruhiko Mukai ,  Masaki Yoda ,  Yutaka Togasawa ,  Yasumi Kitajima ,  Tomoyuki Ito ,  Takuya Uehara ,  Makoto Kondo ,  Yoshifumi Sato

发明人： Katsuhiko Sato ,  Motohiko Kimura ,  Yuji Sano ,  Mitsuaki Shimamura ,  Hiroaki Igakura ,  Makoto Ochiai ,  Naruhiko Mukai ,  Masaki Yoda ,  Yutaka Togasawa ,  Yasumi Kitajima ,  Tomoyuki Ito ,  Takuya Uehara ,  Makoto Kondo ,  Yoshifumi Sato

IPC分类号： B23K26/10 ,  B23K26/06

CPC分类号： B23K26/106 ,  B23K26/356

摘要： A laser emitting head for irradiating a portion to be machined with laser beams outputted from a laser unit (624) incorporates an emitting head body having a light guide member (625) in the head for guiding the laser beams; a light converging lens (677) for converging the laser beams transmitted from the light guide member in the head; a reflecting mirror (678) for irradiating the portion to be machined with the converged laser beams; mirror rotating means (684) for holding the reflecting mirror to be rotative around the optical axis of the laser beam; distance-adjustment means (674) for adjusting the relative distance between the reflecting mirror and the converging lens; and moving means (665) for moving the reflecting mirror and the converging lens such that the relative distance is maintained so that the light guide member in the head. The converging lens and the reflecting mirror can be introduced/discharged with respect to a portion to be machined and formed in a narrow gap in an incore structure. As a result, a preventive-maintenance/repair operation using laser beams and arranged to be performed in a narrow gap in the incore structure can safely and efficiently be performed.

摘要翻译： 用于照射从激光单元（624）输出的激光束的待加工部分的激光发射头包括在头部中具有用于引导激光束的导光构件（625）的发射头本体， 聚光透镜（677），用于会聚从头部中的导光构件传递的激光束; 用于用会聚的激光束照射待加工部分的反射镜（678） 反射镜旋转装置（684），用于保持反射镜围绕激光束的光轴旋转; 距离调节装置（674），用于调节反射镜和会聚透镜之间的相对距离; 以及用于移动反射镜和会聚透镜的移动装置（665），使得保持相对距离，使得导光构件在头部中。 会聚透镜和反射镜可以相对于待加工的部分被引入/排出，并且形成在榫眼结构中的窄间隙中。 结果，可以安全有效地进行使用激光束并布置成在腋窝结构中的窄间隙中进行的预防性维护/修复操作。

公开(公告)号：US6163012A

公开(公告)日：2000-12-19

申请号：US937663

申请日：1997-09-24

申请人： Motohiko Kimura ,  Akira Sudo ,  Katsuhiko Sato ,  Yuji Sano ,  Masaki Yoda ,  Naruhiko Mukai ,  Seishi Shima ,  Muneyoshi Kikunaga

发明人： Motohiko Kimura ,  Akira Sudo ,  Katsuhiko Sato ,  Yuji Sano ,  Masaki Yoda ,  Naruhiko Mukai ,  Seishi Shima ,  Muneyoshi Kikunaga

IPC分类号： B23K26/12 ,  G21C13/087 ,  B23K26/00

CPC分类号： B23K26/106 ,  B23K26/1224 ,  G21C13/087 ,  G21Y2002/102 ,  G21Y2004/201 ,  G21Y2004/50 ,  G21Y2004/501 ,  Y02E30/40

摘要： A laser maintaining and repairing apparatus including a laser oscillator 7, beam guiding apparatus 8 connected to guide a laser beam of the laser oscillator 7, and emitting head 12 for converging the laser beam from the beam guiding apparatus 8 and emitting the beam to a portion to be processed. The beam guiding apparatus 8 includes liquid-tight tubular beam guiding members 9a to 9h. The beam guiding members 9a to 9h are provided with reflecting members 13a, 13b and at least one of mechanisms 10a, 10b and 11a, 11b for providing horizontal turning, horizontal extending, vertical turning and vertical extending operations at the beam guiding members 9a to 9h. With the laser maintaining and repairing apparatus of the noted structure, a laser beam of high energy density can be utilized and processing by the laser beam can be facilitated or the applying range can be increased.

摘要翻译： 包括激光振荡器7，引导激光振荡器7的激光束的光束引导装置8和用于会聚来自光束引导装置8的激光束并将光束发射到一部分的激光器维持和修复装置 待处理。 光束引导装置8包括液密的管状光束引导部件9a至9h。 光束引导部件9a至9h设置有反射部件13a，13b以及用于在光束引导部件9a至9h处提供水平转动，水平延伸，垂直转动和垂直延伸操作的机构10a，10b和11a，11b中的至少一个 。 利用所述结构的激光维持和修复装置，可以利用高能量密度的激光束并且可以促进激光束的处理或者可以增加施加范围。

公开(公告)号：US08330070B2

公开(公告)日：2012-12-11

申请号：US11431920

申请日：2006-05-11

申请人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

发明人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

IPC分类号： C21D1/09 ,  F01D5/28 ,  B23K26/00 ,  B23K26/14

CPC分类号： B23K26/356 ,  B23K26/00 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0876 ,  B23K26/106 ,  B23K26/1224 ,  B23K26/352 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/50 ,  B23K2103/52

摘要： There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.

公开(公告)号：US20100170877A1

公开(公告)日：2010-07-08

申请号：US12724953

申请日：2010-03-16

申请人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

发明人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

IPC分类号： B23K26/12 ,  B23K26/02

CPC分类号： B23K26/356 ,  B23K26/00 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0876 ,  B23K26/106 ,  B23K26/1224 ,  B23K26/352 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/50 ,  B23K2103/52

摘要： There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.

摘要翻译： 提供了一种改进的激光冲击硬化方法和装置，其可以在激光照射时消除液体的飞溅和液面的挥动，并且可以用激光束稳定地照射工件。 因此，本发明提供一种激光冲击硬化方法，用于通过从激光照射装置间歇地发射的脉冲激光束照射通过液体的工件的表面来进行与液体接触的工件的表面处理，改进 包括：提供对激光波长透明的固体，用作到液体表面的入口窗口; 允许液体存在于固体和工件表面之间的激光束的光路中; 并允许激光束通过固体进入并用激光束照射通过液体的工件的表面，从而对工件的表面进行冲击硬化。

公开(公告)号：US20070262063A1

公开(公告)日：2007-11-15

申请号：US11431920

申请日：2006-05-11

申请人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

发明人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

IPC分类号： B23K26/00

CPC分类号： B23K26/356 ,  B23K26/00 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0876 ,  B23K26/106 ,  B23K26/1224 ,  B23K26/352 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/50 ,  B23K2103/52

摘要： There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.

摘要翻译： 提供了一种改进的激光冲击硬化方法和装置，其可以在激光照射时消除液体的飞溅和液面的挥动，并且可以用激光束稳定地照射工件。 因此，本发明提供一种激光冲击硬化方法，用于通过从激光照射装置间歇地发射的脉冲激光束照射通过液体的工件的表面来进行与液体接触的工件的表面处理，改进 包括：提供对激光波长透明的固体，用作到液体表面的入口窗口; 允许液体存在于固体和工件表面之间的激光束的光路中; 并允许激光束通过固体进入并用激光束照射通过液体的工件的表面，从而对工件的表面进行冲击硬化。

公开(公告)号：US08304686B2

公开(公告)日：2012-11-06

申请号：US12724953

申请日：2010-03-16

申请人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

发明人： Yuji Sano ,  Naruhiko Mukai ,  Masaki Yoda ,  Yoshiaki Ono ,  Ryoichi Saeki ,  Hideki Naito

IPC分类号： B23K26/00 ,  B23K26/12 ,  C21D7/06 ,  B23K26/18

CPC分类号： B23K26/356 ,  B23K26/00 ,  B23K26/0006 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0876 ,  B23K26/106 ,  B23K26/1224 ,  B23K26/352 ,  B23K2103/04 ,  B23K2103/05 ,  B23K2103/50 ,  B23K2103/52

摘要： There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.

摘要翻译： 提供了一种改进的激光冲击硬化方法和装置，其可以在激光照射时消除液体的飞溅和液面的挥动，并且可以用激光束稳定地照射工件。 因此，本发明提供了一种激光冲击硬化方法，用于通过从激光照射装置间歇地发射的脉冲激光束照射通过液体的工件的表面来进行与液体接触的工件的表面处理，改进 包括：提供对激光波长透明的固体，用作到液体表面的入口窗口; 允许液体存在于固体和工件表面之间的激光束的光路中; 并允许激光束通过固体进入并用激光束照射通过液体的工件的表面，从而对工件的表面进行冲击硬化。

公开(公告)号：US09136026B2

公开(公告)日：2015-09-15

申请号：US13122330

申请日：2009-10-02

申请人： Yoshio Hamamoto ,  Yuuichi Motora ,  Hiromi Kato ,  Masahiro Takeuchi ,  Masataka Tamura ,  Satoshi Okada ,  Taiji Kobayashi ,  Masaki Yoda ,  Hiroyuki Miyasaka ,  Wataru Kono ,  Masakazu Abura

发明人： Yoshio Hamamoto ,  Yuuichi Motora ,  Hiromi Kato ,  Masahiro Takeuchi ,  Masataka Tamura ,  Satoshi Okada ,  Taiji Kobayashi ,  Masaki Yoda ,  Hiroyuki Miyasaka ,  Wataru Kono ,  Masakazu Abura

IPC分类号： G21C13/00 ,  G21C17/017 ,  G21C13/036 ,  G21C19/20 ,  G21C17/01

CPC分类号： G21C17/017 ,  B23K2101/12 ,  G21C13/036 ,  G21C17/01 ,  G21C19/207 ,  Y02E30/40

摘要： A heating laser beam is emitted to a cracked portion to remove moisture from the cracked portion, and subsequently, a welding laser beam is emitted to the cracked portion to heat and melt the cracked portion. The heating laser beam and the welding laser beam are emitted to an entire surface of the cylindrical body inside the reactor such as a stub tube penetrating through and fixed to a reactor bottom portion and a crack of the welded portion between the cylindrical body and the reactor bottom portion to thereby prevent a new crack from occurring and reactor water from leaking.

摘要翻译： 将加热激光束发射到裂纹部分以从裂纹部分去除水分，随后将焊接激光束发射到裂纹部分以加热和熔化裂纹部分。 加热激光束和焊接激光束被发射到反应器内的圆筒体的整个表面，例如穿透并固定到反应器底部的短截线管和圆柱体与反应器之间的焊接部分的裂纹 从而防止新的裂缝发生，反应堆水不会泄漏。

公开(公告)号：US08774340B2

公开(公告)日：2014-07-08

申请号：US12409151

申请日：2009-03-23

申请人： Hidehiko Kuroda ,  Mikio Izumi ,  Mitsuhiro Enomoto ,  Masaki Yoda ,  Mieko Sato

发明人： Michio Sato ,  Hidehiko Kuroda ,  Mikio Izumi ,  Mitsuhiro Enomoto ,  Masaki Yoda

IPC分类号： G21C17/003 ,  G21C17/00

CPC分类号： G01H1/00 ,  G01N29/11 ,  G01N29/46 ,  G01N2291/044 ,  G01N2291/102 ,  G01N2291/2695 ,  G21C17/00 ,  G21C17/003

摘要： A nuclear reactor vibration surveillance system has a first ultrasonic transducer for transmission, an ultrasonic transmitter, a second ultrasonic transducer for reception, an ultrasonic receiver, a signal processor, and a display unit. The first ultrasonic transducer for transmission is arranged on the outer surface of a reactor pressure vessel and is configured to convert a transmission signal into an ultrasonic pulse signal and allow the ultrasonic pulse to be transmitted to a reactor internal component. The second ultrasonic transducer for reception is arranged on the outer surface of the reactor pressure vessel and is configured to receive a reflected ultrasonic pulse reflected by the reactor internal component and convert the received reflected ultrasonic pulse into a reception signal.

摘要翻译： 核反应堆振动监视系统具有用于传输的第一超声换能器，超声波发射器，用于接收的第二超声换能器，超声波接收器，信号处理器和显示单元。 用于传输的第一超声波换能器布置在反应堆压力容器的外表面上，并且被配置为将传输信号转换为超声波脉冲信号，并允许超声波脉冲传输到反应堆内部部件。 用于接收的第二超声换能器布置在反应堆压力容器的外表面上，并被配置为接收由反应堆内部部件反射的反射的超声脉冲，并将接收到的反射超声波脉冲转换为接收信号。

公开(公告)号：US08445810B2

公开(公告)日：2013-05-21

申请号：US12903855

申请日：2010-10-13

申请人： Hisashi Hozumi ,  Yutaka Togasawa ,  Kenji Matsuzaki ,  Mitsuaki Shimamura ,  Satoshi Okada ,  Wataru Kono ,  Masaki Yoda

发明人： Hisashi Hozumi ,  Yutaka Togasawa ,  Kenji Matsuzaki ,  Mitsuaki Shimamura ,  Satoshi Okada ,  Wataru Kono ,  Masaki Yoda

IPC分类号： B23K26/20

CPC分类号： B23K26/037 ,  B23K26/032 ,  B23K26/042 ,  B23K26/1224 ,  B23K26/14 ,  B23K26/1464 ,  B23K26/21 ,  B23K31/125

摘要： According to one embodiment, a laser welding apparatus has a laser irradiation head that is arranged in an outer frame and is divided inside into a light source side and an irradiation side by a partitioning member. The apparatus also has a gas jet nozzle that is formed so as to irradiate a portion to be welded with the laser light and jet the inert gas to the portion to be welded; and a welding wire feed pipe that sequentially feeds a welding wire. The apparatus also has a welding wire contact mechanism that includes a measuring means for measuring a distance between the extremity of the irradiation side and the extremity of the welding wire, and is formed so that the extremity of the welding wire is brought into contact with and pressed against the portion to be welded by an elastic member.

摘要翻译： 根据一个实施例，激光焊接装置具有设置在外框中的激光照射头，并且通过分隔构件分割成光源侧和照射侧。 该设备还具有气体喷嘴，其被形成为用激光照射待焊接部分并将惰性气体喷射到待焊接部分; 以及依次供给焊丝的焊丝供给管。 该设备还具有焊丝接触机构，其包括用于测量照射侧的末端与焊丝的末端之间的距离的测量装置，并且形成为使得焊丝的末端与 通过弹性部件压靠待焊接的部分。