河野 渉
著者に関連した記事は5件です。
更新情報
第2回
レーザを応用した炉内保全技術とそのPWRへの適用
著者:
佐伯 綾一,Ryoichi SAEKI,佐野 雄二,Yuji SANO,黒田 英彦,Hidehiko KURODA,落合 誠,Makoto OCHIAI,田村 雅貴,Masataka TAMURA,河野 渉,Wataru KONO
発刊日:
公開日:
キーワードタグ:
Laser based maintenance technology Laser cladding laser peening Laser seal welding Laser ultrasonic testing PWR Stress corrosion cracking (SCC) underwater welding
佐伯 綾一,Ryoichi SAEKI,佐野 雄二,Yuji SANO,黒田 英彦,Hidehiko KURODA,落合 誠,Makoto OCHIAI,田村 雅貴,Masataka TAMURA,河野 渉,Wataru KONO
発刊日:
公開日:
キーワードタグ:
Laser based maintenance technology Laser cladding laser peening Laser seal welding Laser ultrasonic testing PWR Stress corrosion cracking (SCC) underwater welding
Toshiba has developed laser-based maintenance, inspection and repair technologies as countermeasures against stress corrosion cracking (SCC) in nuclear power reactors. Laser peening (LP) is a novel process for preventive maintenance, which improves residual stress from tensile to compressive on material surface by irradiation laser pulses in water. Laser-ultrasonic testing (LUT) is capable of detecting and sizing SCC having a depth of about 0.5 mm. Underwater laser welding can be fulfilled by making local ...
英字タイトル:
Laser based maintenance technologies for PWR power plants
英字タイトル:
Laser based maintenance technologies for PWR power plants
第5回
多機能レーザ溶接ヘッドの開発（第１報）－水中レーザ溶接の基本特性評価－
著者:
河野 渉,Wataru KONO,千田 格,Itaru CHIDA,三浦 崇広,Takahiro MIURA,依田 正樹,Masaki YODA,牧野 吉延,Yoshinobu MAKINO,日野 武久,Takehisa HINO
発刊日:
公開日:
キーワードタグ:
Clad weld Preventive maintenance Repair Seal weld Under water laser welding
河野 渉,Wataru KONO,千田 格,Itaru CHIDA,三浦 崇広,Takahiro MIURA,依田 正樹,Masaki YODA,牧野 吉延,Yoshinobu MAKINO,日野 武久,Takehisa HINO
発刊日:
公開日:
キーワードタグ:
Clad weld Preventive maintenance Repair Seal weld Under water laser welding
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventi ve maintenance and laser ultrasonic testing as inspection. Laser transmission test with multifunction laser welding head and optical fiber was carried out. The result showed that laser power needed for welding was transmitted without any damage to them. Under water laser welding onto EDM slits with this welding head w as carried out. EDM slits were...
英字タイトル:
Development of Multifunction Laser Welding Head (1) - Evaluation of Under Water Laser Welding with Multifunction Laser Welding Head -
英字タイトル:
Development of Multifunction Laser Welding Head (1) - Evaluation of Under Water Laser Welding with Multifunction Laser Welding Head -
第5回
多機能レーザ溶接ヘッドの開発（第２報）－レーザピーニングによる応力改善性評価－
著者:
千田 格,Itaru CHIDA,河野 渉,Wataru KONO,三浦 崇広,Takahiro MIURA,向井 成彦,Naruhiko MUKAI,依田 正樹,Masaki YODA
発刊日:
公開日:
キーワードタグ:
Laser peening Preventive maintenance Repair Stress corrosion cracking (SCC)
千田 格,Itaru CHIDA,河野 渉,Wataru KONO,三浦 崇広,Takahiro MIURA,向井 成彦,Naruhiko MUKAI,依田 正樹,Masaki YODA
発刊日:
公開日:
キーワードタグ:
Laser peening Preventive maintenance Repair Stress corrosion cracking (SCC)
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventive maintenance and laser ultrasonic testing as inspection. By using the effect of color aberration with optics, laser beam was focused to the ideal spot size on each process. Laser p eening was performed on the material surface with the developed head, and stress improvement ability was confirmed....
英字タイトル:
Development of Multifunction Laser Welding Head (2) - Stress Improvement by Laser Peening Technology -
英字タイトル:
Development of Multifunction Laser Welding Head (2) - Stress Improvement by Laser Peening Technology -
第5回
多機能レーザ溶接ヘッドの開発（第３報）－レーザ超音波法による表面検査技術の開発－
著者:
三浦 崇広,Takahiro MIURA,河野 渉,Wataru KONO,千田 格,Itaru CHIDA,吉田 昌弘,Masahiro YOSHIDA,山本 智,Satoshi YAMAMOTO,依田 正樹,Masaki YODA,落合 誠,Makoto OCHIAI
発刊日:
公開日:
キーワードタグ:
Laser-ultrasonics Penetrant Testing Preventive maintenance SAFT Weld Defect
三浦 崇広,Takahiro MIURA,河野 渉,Wataru KONO,千田 格,Itaru CHIDA,吉田 昌弘,Masahiro YOSHIDA,山本 智,Satoshi YAMAMOTO,依田 正樹,Masaki YODA,落合 誠,Makoto OCHIAI
発刊日:
公開日:
キーワードタグ:
Laser-ultrasonics Penetrant Testing Preventive maintenance SAFT Weld Defect
Multifunction laser welding head has been developed. The head is able to perform not only underwater laser welding as repair, but also laser peening as preventive maintenance and laser ultrasonic test ing as inspection. For inspection with multifunction laser welding head, a new method of visualized weld defects in water by laser-ultrasonics has developed. To detect and visualize a surface of weld metal with welding bead, the authors have developed a new detection method by leaky wave induced by interactio...
英字タイトル:
Development of Multifunction Laser Welding Head (3) - Surface Inspection Technique by Laser-ultrasonics -
英字タイトル:
Development of Multifunction Laser Welding Head (3) - Surface Inspection Technique by Laser-ultrasonics -
第7回
水中レーザによるテンパービード溶接技術の開発
著者:
福田 健,Takeshi FUKUDA,頓宮 雄一,Masataka TAMURA,依田 正樹,Yuichi TONGU,森島 康雄,Wataru KONO,田村 雅貴,Masaki YODA,河野 渉,Minoru OBATA,小畑 稔,Yasuo MORISHIMA
発刊日:
公開日:
キーワードタグ:
low alloy steel Temper bead welding Under water laser beam welding
福田 健,Takeshi FUKUDA,頓宮 雄一,Masataka TAMURA,依田 正樹,Yuichi TONGU,森島 康雄,Wataru KONO,田村 雅貴,Masaki YODA,河野 渉,Minoru OBATA,小畑 稔,Yasuo MORISHIMA
発刊日:
公開日:
キーワードタグ:
low alloy steel Temper bead welding Under water laser beam welding
Toshiba has developed temper bead welding by under water laser welding as SCC counter measure for aged components in PWR and BWR nuclear power plants. Temper bead welding by under water laser welding technique recovers toughness of low alloy steel reactor vessel by employing proper the number of cladding layers and their welding conditions. In th is report, some evaluation results of material characteristics of temper bead welded low alloy steel are presented....
英字タイトル:
Development of temper bead welding by under water laser welding
英字タイトル:
Development of temper bead welding by under water laser welding