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公开(公告)号：US08378256B2
公开(公告)日：2013-02-19
申请号：US12738162
申请日：2008-10-16
申请人： Masataka Tamura , Yoshinobu Makino , Wataru Kono , Katsunori Shiihara , Yoshimi Tanaka , Masaki Yoda , Yoshio Hamamoto , Satoshi Okada , Hiromi Kato
发明人： Masataka Tamura , Yoshinobu Makino , Wataru Kono , Katsunori Shiihara , Yoshimi Tanaka , Masaki Yoda , Yoshio Hamamoto , Satoshi Okada , Hiromi Kato
IPC分类号： B23K26/00
CPC分类号： B23K26/34 , B23K26/0604 , B23K26/0608 , B23K26/067 , B23K35/0255 , B23K35/0261 , B23K35/0272 , B23P6/04 , G21C19/02
摘要： A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member.
摘要翻译： 提供了一种密封构件中的表面裂纹的方法，包括以加热激光束照射产生裂纹的构件的区域以将该区域加热到低于该构件的熔点的温度的步骤， 然后在加热激光束照射之后用焊接激光束照射产生裂纹的部件的区域，以将该区域加热到高于或等于该部件熔点的温度，从而密封 该构件表面开裂的开口。
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公开(公告)号：US20100258540A1
公开(公告)日：2010-10-14
申请号：US12738162
申请日：2008-10-16
申请人： Masataka Tamura , Yoshinobu Makino , Wataru Kono , Katsunori Shiihara , Yoshimi Tanaka , Masaki Yoda , Yoshio Hamamoto , Satoshi Okada , Hiromi Kato
发明人： Masataka Tamura , Yoshinobu Makino , Wataru Kono , Katsunori Shiihara , Yoshimi Tanaka , Masaki Yoda , Yoshio Hamamoto , Satoshi Okada , Hiromi Kato
IPC分类号： B23K26/00
CPC分类号： B23K26/34 , B23K26/0604 , B23K26/0608 , B23K26/067 , B23K35/0255 , B23K35/0261 , B23K35/0272 , B23P6/04 , G21C19/02
摘要： A method of sealing a surface crack in a member is provided includes steps of irradiating a region of the member at which the crack is produced with a heating laser beam so as to heat the region to a temperature lower than a melting point of the member, and then irradiating a region of the member at which the crack is produced with a welding laser beam subsequent to irradiation of the heating laser beam so as to heat the region to a temperature higher than or equal to the melting point of the member, thereby sealing an opening of the surface crack of the member.
摘要翻译： 提供了一种密封构件中的表面裂纹的方法，包括以加热激光束照射产生裂纹的构件的区域以将该区域加热到低于该构件的熔点的温度的步骤， 然后在加热激光束照射之后用焊接激光束照射产生裂纹的部件的区域，以将该区域加热到高于或等于该部件熔点的温度，从而密封 该构件表面开裂的开口。
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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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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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公开(公告)号：US10052717B2
公开(公告)日：2018-08-21
申请号：US14131119
申请日：2012-08-22
申请人： Tatsuya Ishigaki , Takuya Uehara , Yoshio Hamamoto , Osamu Yamaguchi , Takeshi Maehara , Hiromi Kato
发明人： Tatsuya Ishigaki , Takuya Uehara , Yoshio Hamamoto , Osamu Yamaguchi , Takeshi Maehara , Hiromi Kato
CPC分类号： B23K26/123 , B23K26/1224
摘要： An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.
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公开(公告)号：US20140231394A1
公开(公告)日：2014-08-21
申请号：US14131119
申请日：2012-08-22
申请人： Tatsuya Ishigaki , Takuya Uehara , Yoshio Hamamoto , Osamu Yamaguchi , Takeshi Maehara , Hiromi Kato
发明人： Tatsuya Ishigaki , Takuya Uehara , Yoshio Hamamoto , Osamu Yamaguchi , Takeshi Maehara , Hiromi Kato
CPC分类号： B23K26/123 , B23K26/1224
摘要： An underwater welding apparatus includes: an underwater welding head provided underwater and having, at its leading end, a nozzle section from which laser light is emitted; a shied cover formed of an elastic member and provided around the nozzle section so as to form, at the leading end of the underwater welding head, a space where water is excluded by shield gas; and an expansion/contraction member having a discharge hole for discharging water and shield gas containing metal dust particles from an inside of the shield cover, the discharge hole being increased in diameter as pressure inside the shield cover rises, while being reduced in diameter as the pressure inside the shield cover falls.
摘要翻译： 一种水下焊接装置，包括：水下焊接头，其水下焊接头在其前端具有喷射部，激光从该喷嘴部排出; 由弹性构件形成的盖子，设置在喷嘴部周围，以在水下焊接头的前端形成有屏蔽气体排出水的空间; 以及膨胀/收缩构件，其具有用于排出水的排出孔并且从屏蔽罩的内部屏蔽含有金属粉尘颗粒的气体，当屏蔽罩内的压力升高时，排出孔的直径增加，同时直径减小 屏蔽罩内的压力下降。
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