JP2017096770A - 超音波検査方法及び装置 - Google Patents
超音波検査方法及び装置 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/221—Arrangements for directing or focusing the acoustical waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2487—Directing probes, e.g. angle probes
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/003—Remote inspection of vessels, e.g. pressure vessels
- G21C17/01—Inspection of the inner surfaces of vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/102—Number of transducers one emitter, one receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Mechanical Engineering (AREA)
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- Quality & Reliability (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
Description
13 溶接部
13a 溶接境界面
15 RIPケーシング
15a R部
17 内部欠陥
21 送信用斜角探触子
22 受信用斜角探触子
40 探触子移動機構
Claims (8)
- 被検体の表面に垂直な厚さ方向に対して傾斜した溶接境界面を有する溶接部を検査対象とし、前記被検体の前記表面上に配置された送信用斜角探触子及び受信用斜角探触子を用い、前記溶接境界面に沿って生じる内部欠陥を検出する超音波検査方法であって、
前記被検体の深さ方向に移動させる前記溶接境界面の走査点に対応して、前記溶接境界面の走査点及びその走査点上の前記溶接境界面の法線ベクトルを含む仮想平面と前記被検体の前記表面が交差する交差線上に前記送信用斜角探触子の送信点及び前記受信用斜角探触子の受信点が位置するように、かつ、前記送信用斜角探触子及び前記受信用斜角探触子と前記被検体の干渉部との干渉を回避するように、前記送信用斜角探触子及び前記受信用斜角探触子を配置し、
前記仮想平面内の送信経路にて前記送信用斜角探触子が超音波を送信するとともに、前記仮想平面内の受信経路にて前記受信用斜角探触子が超音波を受信することを特徴とする超音波検査方法。 - 請求項1に記載の超音波検査方法において、
前記溶接境界面の走査点を前記被検体の厚さ方向に投影した前記被検体の前記表面上の起点と前記送信用斜角探触子の送信点及び前記受信用斜角探触子の受信点のそれぞれとを結ぶ二つの直線がなす開き角と、前記送信用斜角探触子の送信角と、前記受信用斜角探触子の受信角とを一定に保ちつつ、前記被検体の前記表面上の前記起点の位置と、前記送信用斜角探触子の送信点と前記受信用斜角探触子の受信点の間隔とを変更することにより、前記被検体の深さ方向に前記溶接境界面の走査点を移動させることを特徴とする超音波検査方法。 - 請求項1に記載の超音波検査方法において、
前記被検体の厚さ方向に対する前記溶接境界面の傾斜角は、15度〜60度の範囲内であることを特徴とする超音波検査方法。 - 請求項1に記載の超音波検査方法において、
前記送信用斜角探触子から前記内部欠陥へ横波を送信するとともに、前記内部欠陥で反射した横波を前記受信用斜角探触子で受信する伝搬モードを用い、
前記内部欠陥に対する横波の入射角は、35度以上かつ80度以下であることを特徴とする超音波検査方法。 - 請求項1に記載の超音波検査方法において、
前記送信用斜角探触子の送信角及び前記受信用斜角探触子の受信角は、40度以上かつ90度未満であることを特徴とする超音波検査方法。 - 請求項1に記載の超音波検査方法において、
原子炉圧力容器の下鏡ペタル部の表面に垂直な厚さ方向に対して傾斜した溶接境界面を有する溶接部を検査対象とし、前記下鏡ペタル部の前記表面上に配置された送信用斜角探触子及び受信用斜角探触子を用い、前記溶接境界面に沿って生じる内部欠陥を検出することを特徴とする超音波検査方法。 - 被検体の表面に垂直な厚さ方向に対して傾斜した溶接境界面を有する溶接部を検査対象とし、前記被検体の前記表面上に配置された送信用斜角探触子及び受信用斜角探触子と、前記被検体の前記表面に沿って前記送信用斜角探触子及び前記受信用斜角探触子を移動させる探触子移動機構とを用い、前記溶接境界面に沿って生じる内部欠陥を検出する超音波検査装置であって、
前記探触子移動機構は、前記被検体の深さ方向に移動させる前記溶接境界面の走査点に対応して、前記溶接境界面の走査点及びその走査点からの法線ベクトルを含む仮想平面と前記被検体の前記表面が交差する交差線上に前記送信用斜角探触子の送信点及び前記受信用斜角探触子の受信点が位置するように、かつ、前記送信用斜角探触子及び前記受信用斜角探触子と前記被検体の干渉部との干渉を回避するように、前記送信用斜角探触子及び前記受信用斜角探触子を配置し、
前記送信用斜角探触子は、前記仮想平面内の送信経路にて超音波を送信するように送信角が設定され、
前記受信用斜角探触子は、前記仮想平面内の受信経路にて超音波を受信するように受信角が設定されたことを特徴とする超音波検査装置。 - 請求項7に記載の超音波検査装置において、
前記探触子移動機構は、前記溶接境界面の走査点を前記被検体の厚さ方向に投影した前記被検体の前記表面上の起点と前記送信用斜角探触子の送信点及び前記受信用斜角探触子の受信点のそれぞれとを結ぶ二つの直線がなす開き角と、前記送信用斜角探触子の送信角と、前記受信用斜角探触子の受信角とを一定に保ちつつ、前記被検体の前記表面上の前記起点の位置と、前記送信用斜角探触子の送信点と前記受信用斜角探触子の受信点の間隔とを変更するように構成されたことを特徴とする超音波検査装置。
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GB1619378.1A GB2546371B (en) | 2015-11-24 | 2016-11-16 | Ultrasonic inspection method and apparatus |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018212208A1 (ja) | 2017-05-15 | 2018-11-22 | 旭化成株式会社 | イソシアネートの製造方法 |
JP2019144036A (ja) * | 2018-02-19 | 2019-08-29 | 日立Geニュークリア・エナジー株式会社 | 超音波検査装置 |
JP2020012746A (ja) * | 2018-07-19 | 2020-01-23 | 日立Geニュークリア・エナジー株式会社 | 超音波検査装置 |
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US20090235749A1 (en) * | 2008-03-19 | 2009-09-24 | Kazuya Ehara | Ultrasonic inspection method and ultrasonic inspection apparatus |
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Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5786791A (en) * | 1980-11-20 | 1982-05-29 | Hitachi Ltd | Automatic super sonic wave defectoscope for under mirror of recirculation pump built-in reactor |
JPS612068A (ja) * | 1984-06-14 | 1986-01-08 | Kobe Steel Ltd | 遠心鋳造管の超音波探傷法 |
JPH01124762A (ja) * | 1987-11-09 | 1989-05-17 | Ishikawajima Harima Heavy Ind Co Ltd | 異材継手部の超音波探傷法 |
JPH0383863U (ja) * | 1989-12-19 | 1991-08-26 | ||
JPH05119025A (ja) * | 1991-10-28 | 1993-05-14 | Mitsubishi Heavy Ind Ltd | 円周溶接部の探傷方法 |
JPH0611595A (ja) * | 1992-06-25 | 1994-01-21 | Ishikawajima Harima Heavy Ind Co Ltd | 探傷装置 |
JPH08178904A (ja) * | 1994-12-22 | 1996-07-12 | Hitachi Ltd | 超音波探傷装置 |
JPH095304A (ja) * | 1995-06-16 | 1997-01-10 | Mitsubishi Heavy Ind Ltd | 直管とエルボとの溶接部の超音波探傷方法 |
US20090235749A1 (en) * | 2008-03-19 | 2009-09-24 | Kazuya Ehara | Ultrasonic inspection method and ultrasonic inspection apparatus |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018212208A1 (ja) | 2017-05-15 | 2018-11-22 | 旭化成株式会社 | イソシアネートの製造方法 |
JP2019144036A (ja) * | 2018-02-19 | 2019-08-29 | 日立Geニュークリア・エナジー株式会社 | 超音波検査装置 |
JP2020012746A (ja) * | 2018-07-19 | 2020-01-23 | 日立Geニュークリア・エナジー株式会社 | 超音波検査装置 |
JP7089969B2 (ja) | 2018-07-19 | 2022-06-23 | 日立Geニュークリア・エナジー株式会社 | 超音波検査装置 |
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