第3回
BMI 管台 J溶接部における検査技術の開発
著者:
木村 是,Tadashi KIMURA,東 正剛,Masayoshi HIGASHI,川浪 精一,Seiichi KAWANAMI,七田 知紀,Tomonori SHICHIDA,浅田 義浩,Yoshihiro ASADA
発刊日:
公開日:
キーワードタグ:
Recently, operation life of nuclear power plants is being extended, therefore, the maintaining the reactor vessel integrity is one of the most important matters in Japan. In these years, some leakages from penetration of alloy 600 CRDM and BMI were reported. B MI penetration is becoming one of the most critical issues in PWR components.In this paper, we introduce four new inspection techn iques including Visual testing (VT), Eddy current Testing (ECT), Adaptive Focusing UT (AdF-UT) and SAFT-UT for the BMI ...
英字タイトル:
Development of Inspecting Techniques for BMI J-Welds of PWR Nuclear Power Plants
第3回
インテリジェント ECT の実機適用
著者:
浅田 義浩,Yoshihiro ASADA,川田 かよ子,Kayoko KAWATA,川瀬 直人,Naoto KAWASE,七田 知紀,Tomonori SHICHIDA,高次 正弥,Masaya TAKATSUGU
発刊日:
公開日:
キーワードタグ:
The Intelligent ECT probe has been developed to achieve high speed inspectio n and high flaw detectability compared with conventional ECT probe. Intellig ent ECT probe has 24ch multi array coils which consist of inclined drive coi ls and thin-film pick-up coils and has various diameter types for inspectio n of various steam generators. In Japan, Intelligent ECT has been applied to 100% full length inspection of actual plants with fully automatic data acqu isition system. The Intelligent ECT has been applie...
英字タイトル:
Field experience with intelligent ECT
第3回
フェーズドアレイ UT の RV セーフエンドへの適用
著者:
西田 純一朗,Jun-ichiro NISHIDA,浅田 義浩,Yoshihiro ASADA,増本 光一郎,Koichiro MASUMOTO,村上 平八朗,Heihachiro MURAKAMI,川波 精一,Seiichi KAWANAMI
発刊日:
公開日:
キーワードタグ:
In the nuclear power plant, ultrasonic testing is performed as an in-service inspection of the reactor vessel (RV-ISI) according to JSME code. MHI is using the advanced UT machine (A-UT machine) system to RV-ISI under the high radiatio n condition. RV-ISI is one of the critical path in ISI schedule, so it is strongly required to reduce the inspection t ime of RV-ISI. In this report, the counter measure to reduce RV-ISI period by using the phased array UT is described....
英字タイトル:
Application of Phased Array UT to RV Safe End Welds Inspection
第5回
フォトサーマルカメラを用いた表面検査技術の評価
著者:
浅田 義浩,Yoshihiro ASADA,須田 洋介,Yosuke SUDA,東 正剛,Masayoshi HIGASHI
発刊日:
公開日:
キーワードタグ:
An innovative surface inspection technique b y Photothermal camera was evaluated in this study. Experimental results showed Photo The rmal camera has enough detectability of SCCs....
英字タイトル:
Evaluation of surface inspection technique by Photo Thermal Camera
論文
PWR容器の異種金属溶接部ECT検査手法の開発
著者:
浅田 義浩,Yoshihiro ASADA,徳久 貴一,Kiichi TOKUHISA,高次 正弥,Masaya TAKATSUGU,黒川 政秋,Masaaki KUROKAWA,川田 かよ子,Kayoko KAWATA,平野 伸朗,Shinro HIRANO,瀬良 健彦,Takehiko SERA
発刊日:
公開日:
キーワードタグ:
Eddy Current testing (ECT) for detecting stress corrosion cracks (SCCs) in the vessel's dissimilar metal weld of PWR plants was carried out. Appropriate ECT with a single cross-coil can detect shallow artificial SCCs with depth of 0.5mm or over. And magnetic saturation method is very effective for decreasing noise signals come from permeability change in the boundary region between overlay and buttering of safe-end....
英字タイトル:
Development of Eddy Current Testing Method for PWR Vessel’s Dissimilar Metal Weld