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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。
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2.发明授权公开(公告)号：US07759601B2
公开(公告)日：2010-07-20
申请号：US10763336
申请日：2004-01-26
CPC分类号： B23K26/1476 , B23K26/02 , B23K26/03 , B23K26/032 , B23K26/0648 , B23K26/0665 , B23K26/1224 , B23K26/123 , B23K26/14
摘要： An underwater laser processing apparatus includes an optical unit and a nozzle. The optical unit irradiates a condensed laser beam generated by a YAG laser source to a certain point on a underwater workpiece. The nozzle has a gas exit for supplying a gas to the certain point. In the nozzle, an area surrounding the gas exit extends to the surface of the workpiece. This area keeps the supplied gas between the nozzle and the workpiece to improve the underwater laser process.
摘要翻译： 水下激光加工装置包括光学单元和喷嘴。 光学单元将由YAG激光源产生的聚光激光束照射到水下工件上的某一点。 喷嘴具有用于向某一点供应气体的气体出口。 在喷嘴中，围绕气体出口的区域延伸到工件的表面。 该区域保持喷嘴和工件之间的供气，以改善水下激光过程。
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公开(公告)号：US20110274229A1
公开(公告)日：2011-11-10
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
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。
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4.发明授权公开(公告)号：US06946618B2
公开(公告)日：2005-09-20
申请号：US09965122
申请日：2001-09-28
IPC分类号： G21C19/02 , B23K26/02 , B23K26/03 , B23K26/06 , B23K26/08 , B23K26/12 , B23K26/14 , B23K26/00
CPC分类号： B23K26/1476 , B23K26/02 , B23K26/03 , B23K26/032 , B23K26/0648 , B23K26/0665 , B23K26/1224 , B23K26/123 , B23K26/14
摘要： An underwater laser processing apparatus includes an optical unit and a nozzle. The optical unit irradiates a condensed laser beam generated by a YAG laser oscillator to a certain point on a underwater workpiece. The nozzle has a gas exit for supplying a gas to the certain point. In the nozzle, an area surrounding the gas exit extends to the surface of the workpiece. This area keeps the supplied gas between the nozzle and the workpiece to improve the underwater laser process.
摘要翻译： 水下激光加工装置包括光学单元和喷嘴。 光学单元将由YAG激光振荡器产生的聚光激光束照射到水下工件上的某一点。 喷嘴具有用于向某一点供应气体的气体出口。 在喷嘴中，围绕气体出口的区域延伸到工件的表面。 该区域保持喷嘴和工件之间的供气，以改善水下激光过程。
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