JPS58180945A - Ultrasonic flaw detector - Google Patents
Ultrasonic flaw detectorInfo
- Publication number
- JPS58180945A JPS58180945A JP57062299A JP6229982A JPS58180945A JP S58180945 A JPS58180945 A JP S58180945A JP 57062299 A JP57062299 A JP 57062299A JP 6229982 A JP6229982 A JP 6229982A JP S58180945 A JPS58180945 A JP S58180945A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- ultrasonic
- probe
- flaw detection
- gimbal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
- B23Q9/0014—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action
- B23Q9/0021—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the tool being guided in a circular path
-
- 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
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02854—Length, thickness
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は圧力容器のノズル部の超音波探傷装置に関する
。轡に、ノズル外ＩＩ！面に超音波探触子を設定し、ノ
ズル；−ナーＳに発生する欠陥を検出する超音波探傷装
置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic flaw detection device for a nozzle portion of a pressure vessel. Outside the nozzle II! The present invention relates to an ultrasonic flaw detection device that detects defects occurring in a nozzle S by setting an ultrasonic probe on a surface thereof.
この樵の技術は、原子炉圧力１！−のノズルコーナ一部
の探傷などに用いられる。従来の原子炉圧力容善ノズル
コーナ一部の外課面からの超音波探傷法としてはα）圧
力箒＃Ｉｈ１Ｉからの探傷墨（２））ノズル補強部平坦
部からの擢傷菖という方法がある。ところがこれらには
、
（１） 探傷ｌｌｌ！−が兼く、感度が悪くなる。The technique of this woodcutter is that the reactor pressure is 1! - Used for flaw detection in a part of the nozzle corner. Conventional ultrasonic flaw detection methods from the external surface of a part of the nozzle corner with good pressure capacity in the reactor include α) flaw detection ink from pressure broom #Ih1I, (2)) flaw detection from the flat part of the nozzle reinforcement. . However, these include: (1) Flaw detection! - also occurs, resulting in poor sensitivity.
（鯵） 欠陥の伽と超音波ビームのなす角が鋭角とな
り、反射効率が悪くなる。(Mackerel) The angle between the defect and the ultrasonic beam becomes an acute angle, resulting in poor reflection efficiency.
（−） ノズルコーナ一部に超音、仮ビームを投入す
ることが崩しい。(-) Injecting ultrasonic and temporary beams into a part of the nozzle corner is problematic.
（１ｖ） 一方向探傷の丸め、能率が悪い。(1v) Rounding of unidirectional flaw detection is inefficient.
という問題があるため、（３）ノズル外表ＵｋＪ鞍形部
からの探傷；という方法が採用される場合がある。Because of this problem, the following method is sometimes adopted: (3) flaw detection from the nozzle outer surface UkJ saddle-shaped portion.
しかしこれに関しても、
（１） 欠陥の位置は、探触子のノズル軸方向位置、入
射角、ｍ根等から、その位ｒ１ｔｗＡ足を行うので、精
度が悪い。However, regarding this as well, (1) the position of the defect is determined by r1twA based on the position of the probe in the nozzle axis direction, the angle of incidence, the m root, etc., so the accuracy is poor.
（Ｉｔ） 一方向探傷のため、能率が悪い。(It) Due to unidirectional flaw detection, efficiency is low.
（ｌｊｉ） ノズル外弐面鞍形部からの探傷のため、
接触子を正確に外表面に接触させることが―シ＜、かつ
接触子をスムーズに走査することも囲周である。(lji) For flaw detection from the saddle-shaped part on the outside of the nozzle,
It is important to have the contact accurately contact the outer surface, and it is also important to scan the contact smoothly.
という問題点が残っている。There remains the problem.
本発明は、上記問題点を改善することを目的としてなさ
れたもので、ノズル外表面、特にその鞍形部の如籾曲向
部分からでも、その探傷に際して接触子を正確に外表向
に接触させることができ、接触子の走査もスムーズであ
って、これによυ欠陥位置標定精度の向上、能率向上を
図つ友ノズル部の超音改探傷装置ｔ−提供せんとするも
のでおる。The present invention has been made with the aim of improving the above-mentioned problems, and it is possible to accurately contact the contactor with the outer surface when detecting flaws even from the outer surface of the nozzle, especially from the curved part of the saddle-shaped part thereof. It is an object of the present invention to provide an ultrasonic modified flaw detection device for a companion nozzle portion, which enables smooth scanning of the contact and thereby improves defect location accuracy and efficiency.
この目的の達成のためには、ノズル外表面特にその鞍形
部の如く一面ｔなす部分にも安定に接触して、スムーズ
に走査回転するように超音波探触子を設定する必要があ
る。In order to achieve this objective, it is necessary to set the ultrasonic probe so that it can stably contact the outer surface of the nozzle, especially its saddle-shaped portion, and scan and rotate smoothly.
このため、本発明においては、超音波探触子をＸ） ７
ハルによ〕保持し、このジンバルはノズル外表面に超
音波探触子を押付ける方向に沿って出入自在になるよう
に支持Ｓ＃に支持し、かつその支持部材４に回転可能に
軸着されるようにして、このような構成によル超音ＩＩ
ＬＩＩ触子をノズル外赤面にほぼその法一方向で押付は
可縮とする。本発明では、このような超音ＩＩＬ−触子
ｔ１つ壕九は複数設ける。Therefore, in the present invention, the ultrasonic probe is
This gimbal is supported by the support S# so that it can move in and out along the direction in which the ultrasonic probe is pressed against the outer surface of the nozzle, and is rotatably attached to the support member 4. With this configuration, ultrasonic II
The LII contactor can be compressed by pressing it almost in one direction on the outside of the nozzle. In the present invention, a plurality of such ultrasonic IIL probes and trenches are provided.
上記構成０６釆、探触子の安定な接触・走査が可能とな
υ、探触子の位置が安定となって、その位置検出も安定
で、従って屈折角・ｗ６根等から火成ｐ正確な位ｌ１１
ｍ定が可能となる。With the above configuration 06 button, stable contact and scanning of the probe is possible υ, the position of the probe is stable, and its position detection is also stable, so the igneous p is accurate from the refraction angle, w6 root, etc. 111
m-determination becomes possible.
また、このような超音波探触子を複数設ければ、伺えば
ノズル外表向鞍形錫の周方向に探触子を複数ａｍする構
成にでき、これによれば複数の探触子による能率の良い
探傷が可能となって、′！１１ｆも同上される。Furthermore, if a plurality of such ultrasonic probes are provided, it is possible to construct a structure in which a plurality of probes are arranged in the circumferential direction of the saddle-shaped tin on the outer surface of the nozzle. Good flaw detection is now possible. 11f is also mentioned above.
更にこの構成では、周方向に対し、時針方向及び反時計
方向に超音波ビームを投入するようにできるので、欠陥
位置の標定がｌ′ｆｔ蜜に行えるものである。Furthermore, with this configuration, the ultrasonic beam can be applied in the hour hand direction and counterclockwise direction with respect to the circumferential direction, so that the defect position can be precisely located by l'ft.
以下、本発明の一実ｍガｔ−第１図及び１１２図によシ
説明する。この例は、本発明を原子炉圧力容−のノズル
部の探傷に通用したものであり、特にノズル外表１ｌｉ
ｉＷｔ形部に超音波探触子を設置し、かつ自動超音波探
傷装置として構成した例である。Hereinafter, the embodiment of the present invention will be explained with reference to FIGS. 1 and 112. In this example, the present invention is applied to the flaw detection of the nozzle part of the reactor pressure vessel, and in particular, the nozzle outer surface 1li.
This is an example in which an ultrasonic probe is installed in an iWt-shaped part and configured as an automatic ultrasonic flaw detection device.
第１図は本例の超音波探傷装置の＠面図であプ、１ｇ２
図は第１図における用方向からこの装置を見た矢視図で
ある。Figure 1 is a side view of the ultrasonic flaw detection device of this example, 1g2
The figure is a view of the apparatus viewed from the direction of use in FIG. 1.
この装置ｉｔは、圧力容器のノズルｌの外表向１ａψに
超音波探触子２を設定して、ノズルコーナ一部ｌｂ＆Ｃ
発生する欠陥を検出するものである。超音波探触子２は
ジンバル３により保持させる。このジンバル３は、ノズ
ル外表面１１ｒｃ探触子２を押付ける方向に沿って、出
入自在になるよう、支持部材６によシ支持させる。例え
ば図のガでは、エアーシリンダをこの支持部材６とし１
用い、従って図で舊えば矢印ム、Ａ′方向（接触子２の
押付は方向に沿う方向）に、ジンバル３が出入自在にな
るような構成にしである。This device IT sets the ultrasonic probe 2 on the outer surface 1aψ of the nozzle l of the pressure vessel, and
It detects defects that occur. The ultrasonic probe 2 is held by a gimbal 3. This gimbal 3 is supported by a support member 6 so that it can move in and out along the direction in which the nozzle outer surface 11rc probe 2 is pressed. For example, in the illustrated example, the air cylinder is used as the support member 6 and 1
Therefore, the gimbal 3 is configured to be able to move in and out in the direction of the arrow A' (the direction in which the contactor 2 is pressed) as shown in the figure.
更にとの叉ｆ＃部材６は、回転可能に軸着されて成る。Furthermore, the fork f# member 6 is rotatably attached to the shaft.
軸は図で貫えは点Ｐの位置である。The axis is the position of point P in the diagram.
このような構成によｐ１探触子２は、ノズル外表面１ａ
ＫはぼそＯ法一方向で押付けられることが可能となる。With such a configuration, the p1 probe 2 has nozzle outer surface 1a.
K can be pressed in one direction using the Boso-O method.
つ１砂、外表面１１が一面状をなしていても、ジンバル
３の２つの′４１ＩＩ１３１，３２により、矢印Ｂ、Ｃ
Ｏ回転が可能であｐｌこの面での位置倣φが可縮となる
。かつ、点Ｐｉ中心に支持部材６が回転可能なので、外
表向ｌａの図に現れ九−纏に沿う接触子２の曲−倣いも
町総である。Even if the outer surface 11 is flat, the arrows B and C are
O rotation is possible, and positional tracing φ on this plane is retractable. In addition, since the support member 6 is rotatable around the point Pi, the curve of the contact 2 along the 9-line which appears in the diagram of the outer surface la is also machiso.
従って、どの方向について４ｈ探触子２は曲面に倣うこ
とができ、常に安定して、′外表面１１にほぼその法線
方向に沿って押圧される。Therefore, the 4h probe 2 can follow the curved surface in any direction and is always stably pressed against the outer surface 11 approximately along its normal direction.
１九、ｊＩｚ図に表されているように、探触子２゜２′
を複数ｔ＆置すると、ノズル外表面１１の鞍形部にその
周方向Ｅｌｌ触子２，２′を複数設けた構成となり、従
って複数の探触子２，２′による能率の良い探傷を行う
ことができる。これは、精度同上にもつながるものであ
る。19. As shown in the jIz diagram, the probe 2゜2'
When a plurality of probes 2 and 2' are placed in the saddle shape portion of the nozzle outer surface 11, a plurality of probes 2 and 2' are provided in the circumferential direction, and therefore, efficient flaw detection can be performed using a plurality of probes 2 and 2'. I can do it. This also leads to accuracy.
また、本構成においては、探触子２ （２’ ）ｋノズ
ル外表面１ｍにおいて時針方向りで走査させることや、
逆に反時針方向Ｄ′で走査させることができ、従って各
方向で超音波ビームを投入できるので、欠陥位置の標定
を正確に行えるようになる。In addition, in this configuration, the probe 2 (2') k is scanned in the direction of the hour hand over 1 m of the outer surface of the nozzle,
Conversely, scanning can be performed in the counterclockwise direction D', and therefore, the ultrasonic beam can be applied in each direction, so that the defect position can be accurately located.
以下、本実施例についてその具体的構成を一層峰しく説
明する。Hereinafter, the specific configuration of this embodiment will be explained in more detail.
第１図中、符号１はノズル、１ｍはその外表面で本例の
礪合鞍形部、１ｂはノズルコーナー、２は超音波探触子
、３はジンバルであって、こｎらはすでに説明したとお
りである。更に４はモータ、５は位置検出用のポテンシ
ョメータ、６は前述したように支持部材を構成している
エアシリンダ、７は扇形ギヤである。これら構成部分の
相互関係は、仄のようになっている。つまシェアシリン
ダ６と扇形ギヤ７は軸を介してＭＩｃ続され、モータ４
によ〕扇形キヤ７に駆動し、これにょシェアシリンダ（
支持部材）６を点Ｐを中心として、２れをαの方向に揺
−する、ポテンショメータ５で、位置検出を行う。また
、ジンバル３の作用にょシ、超音波探触子２をノズル外
表向に倣わせる。In Fig. 1, reference numeral 1 is the nozzle, 1m is its outer surface, which is the saddle shape of this example, 1b is the nozzle corner, 2 is the ultrasonic probe, and 3 is the gimbal. As explained. Furthermore, 4 is a motor, 5 is a potentiometer for position detection, 6 is an air cylinder forming a support member as described above, and 7 is a fan-shaped gear. The mutual relationships among these constituent parts are as shown below. The claw share cylinder 6 and the fan-shaped gear 7 are connected to each other via a shaft, and the motor 4
This is driven by the fan-shaped gear 7, and the share cylinder (
Position detection is performed by a potentiometer 5 that swings the supporting member 6 around a point P in the direction α. Further, due to the action of the gimbal 3, the ultrasonic probe 2 is caused to follow the outer surface of the nozzle.
図中８は倣いセンナ、９は設置され九軌道９１上を走行
する走行車、１Ｇは走行車９の中に組込まれ九ノズル軸
方向躯動輪である。軌道９１はノズル１の全ｊＩｌｉＫ
沿って設置されておｐ１走行車が軌道９１全周を走行す
ると、これに伴って超音波探触子２がノズルコーナーｆ
ｉ１Ｍ全周を走査して、探傷を行えるようになっている
。この場合、ノズルコーナー全周を超音ａｉｍ傷する九
めに走行車９が軌道９１上τ走行する鵬、走行中９内の
ノズル軸方内部１１ｉ１＠ｌＯ１倣いセ／す８にょシサ
ーボ制御することによｐ１超ｆ猷妹触子２ｔ−ノズル外
縁＊薮形部に倣わせる。In the figure, 8 is a copying sensor, 9 is a traveling vehicle installed and running on a nine track 91, and 1G is a nine nozzle axial sliding wheel built into the traveling vehicle 9. Trajectory 91 is all jIliK of nozzle 1
When the p1 running vehicle runs around the entire circumference of the track 91, the ultrasonic probe 2 moves along the nozzle corner f.
It is now possible to perform flaw detection by scanning the entire circumference of i1M. In this case, when the traveling vehicle 9 travels on the track 91 with ultrasonic aim scratching the entire circumference of the nozzle corner, the axial servo control of the nozzle inside 11i1@lO1 while traveling is performed. ni p1 super f 猋 imitator 2t - Nozzle outer edge * Make it follow the bush-shaped part.
８２図は前記し九とおル、第１図を矢印鳳方向から見比
ものである。超音波探触子２．２’ １ｉ−２一配列し
ている。それぞれのエアシリンダ（支持部材）６．６’
はノズル中心方図を向いておプ、ノズル外表面Ｍ型部の
法一方向に押付ける構造となっている。このような法一
方向での外表向上への押付けが可能であることはジンバ
ル３その他の構成によ如結来されるものであり、これは
既に説明したとおりである。Figure 82 is a comparison of the previous figure and Figure 1 from the direction of the arrow. Ultrasonic probes 2.2' 1i-2 are arrayed. Each air cylinder (support member) 6.6'
The structure is such that it faces towards the center of the nozzle and is pressed in one direction along the M-shaped portion on the outer surface of the nozzle. The ability to press to improve the outer surface in one direction is achieved by the gimbal 3 and other structures, as described above.
第２図中、１１は傘璽単、１２は接触子１ｇ１１転軸で
ある。両エアシリンダ（支持部材）６．６’は角度が異
なるので、これをモータ４及び扇形ギヤ７により回転さ
せるため、それぞれのエア７リンダ６．６′に連結され
次回転軸１２．１２’を、傘歯車１２で接続する構成を
採っているのである。In FIG. 2, 11 is an umbrella, and 12 is a rotating shaft of the contact 1g11. Since both air cylinders (supporting members) 6.6' have different angles, in order to rotate them by the motor 4 and sector gear 7, they are connected to their respective air cylinders 6.6', and the next rotation shaft 12.12' is rotated by the motor 4 and sector gear 7. , a configuration in which they are connected by bevel gears 12 is adopted.
本実施例によれば、超音波探触子２（２’）をノズル外
表面１ａに画直につまりその法一方向に沿って押付ける
ことができるので、探触子の安定な接触・走査が可能で
あり、！ｆＩ度の良い超音波探傷が可能となる。According to this embodiment, since the ultrasonic probe 2 (2') can be pressed directly against the nozzle outer surface 1a, that is, along one direction, stable contact and scanning of the probe can be achieved. is possible! Ultrasonic flaw detection with good fI becomes possible.
かつ本実施例の如く２個の超音波探触子２．２′を設け
れは、能率的な超音波探傷が可能となり、各方向からの
探傷を行うことになるので、精度も向上する。Furthermore, by providing two ultrasonic probes 2, 2' as in this embodiment, efficient ultrasonic flaw detection becomes possible, and since flaw detection is performed from each direction, accuracy is also improved.
上配夷膳−では位置検出の九めにボテンシ盲メータ５を
用い九が、その代わ９にロータリーエンコ −ダ等の位
置検出＊Ｗｔ＊用してもよ−。また傘歯車の代わ９に、
ユンバーナルジョイントあるいはフレキシブルカップリ
ング等の、角度をなす軸を駆動する一縁を採用すること
奄、轟然可能である。超音波探触子の数を、更に多くす
ることによシ、一層能率的な超音波探傷を達成すること
もできる。In the upper case, a potentiometer blind meter 5 is used for position detection, but instead, a rotary encoder or the like may be used for position detection *Wt*. Also, instead of bevel gear 9,
It is perfectly possible to use a rim that drives an angled shaft, such as a universal joint or a flexible coupling. By increasing the number of ultrasonic probes, even more efficient ultrasonic flaw detection can be achieved.
上述の如く、従来は超音波探触子を安定にノズル外表向
に押付け・走査することができず、精度同上にも限界が
６つ九のに対し、本発明によれば超音波−触子を外形表
面にそのほぼ垂直方向で安定に押付け・走査することが
でき、精度良好な超音波探傷が可能になるという効果ｔ
Ｍする。As mentioned above, in the past, it was not possible to stably press and scan the ultrasonic probe on the outer surface of the nozzle, and there were limits to the accuracy, but according to the present invention, the ultrasonic probe can be stably pressed and scanned against the external surface in a direction almost perpendicular to the external surface, enabling highly accurate ultrasonic flaw detection.
M.
また、実施例の如く複数個の超音波探触子を用いる構成
にして、更に能率の良い、精［嵐好な超音波探傷を可能
ならしめることができる。Further, by using a configuration using a plurality of ultrasonic probes as in the embodiment, more efficient and precise ultrasonic flaw detection can be performed.
従って本発明は、超音波探傷装置のｇ！Ｉ幀性を格段に
向上させることができ、このため探傷のための工数低減
幼果も大であり、実際上工業的に人感な利益が期待でき
る。Therefore, the present invention provides g! It is possible to significantly improve the I/O efficiency, and therefore the man-hours required for flaw detection can be greatly reduced, and significant industrial benefits can be expected.
なお当然のことではあるが、本発明は図示の夫施的にの
み限定されるものではない。It should be noted that, as a matter of course, the present invention is not limited to the embodiments shown in the drawings.
第１図及び４２図は本発明の超音波探傷装置の一実施例
を示し、第１図はその＠面図、第２図は第１図における
…方回矢視図である。
１・・・ノズル、１ａ・・・ノズル外表面、ｌｂ・・・
ノズルコーナ一部、２．２′・・・超音波探触子、３，
３′・・・ジンバル、６．６’・・・支持部材（エアシ
リンダ） 、
、−、；＝・・、代理人 弁理± ＾惧祷ネ、゛
箋 １ 口
第２ 口1 and 42 show an embodiment of the ultrasonic flaw detection apparatus of the present invention, FIG. 1 is a @ side view thereof, and FIG. 2 is a view taken from the direction of the arrow in FIG. 1. 1... Nozzle, 1a... Nozzle outer surface, lb...
Part of nozzle corner, 2.2'...Ultrasonic probe, 3,
3'...Gimbal, 6.6'...Support member (air cylinder),
,-,;=..., agent attorney ± ^ Concerns, ゛ note 1st part 2nd part
Claims (1)
にし、ノズルコーナ一部に発生する欠陥を検出する超音
波探傷装置において、超音波探触子をジンバルによシ保
持し、該ジンバルはノズル外衆向に超音波探触子を押付
ける方向に沿って出入自在に支持部材に支持し、線支持
部材は回転可能に設定し、この構成により前記超音波探
触子をノズル外表面にほぼその汰一方向で押付は司舵と
し、かつかかる超音波探触子ｔ−１つまたはｌ［畝設け
たことをＷ做とする超音波探傷装置。 ２ 超音波探触子を設定するノズル外表面は、ノズル外
底ｒｆｉ鞍ｍｓである、特許請求の範囲銀１項ＶＣ記叡
の超音波探傷装置。 ＆ 超音波探触子を複数設け、これｔノズル外表面鞍ａ
ｉｔ部の周方向に沿って配設して成る、特許請求の範囲
第２項に記載の超音波探傷装置。 ４、圧力容器は原子炉圧力容福であり、かつ超音波探触
子は自動的にｇｌＩｋするようにして、自動超音ａＳＳ
装置とした、特許請求の範囲第１項乃至嬉喜項のいずれ
かに記載の超音波探傷装置。[Scope of Claims] 1. In an ultrasonic flaw detection device that installs an ultrasonic IL probe on the outer surface of a nozzle of a pressure vessel and detects defects occurring in a part of the nozzle corner, the ultrasonic probe is mounted on a gimbal. The gimbal is supported by a support member so as to be movable in and out along the direction in which the ultrasonic probe is pressed toward the outside of the nozzle, and the line support member is set to be rotatable. An ultrasonic flaw detection device in which a probe is pressed substantially in one direction on the outer surface of a nozzle, and the ultrasonic probe is provided with t-1 or l [ridges]. 2. The ultrasonic flaw detection device according to claim 1, wherein the nozzle outer surface on which the ultrasonic probe is set is the nozzle outer bottom RFI saddle ms. ＆ Multiple ultrasonic probes are installed, and the nozzle outer surface saddle a
The ultrasonic flaw detection device according to claim 2, which is arranged along the circumferential direction of the IT section. 4. The pressure vessel is under reactor pressure, and the ultrasonic probe is automatically glIk, so that automatic ultrasonic aSS
An ultrasonic flaw detection device according to any one of claims 1 to 1, which is an apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57062299A JPS58180945A (en) | 1982-04-16 | 1982-04-16 | Ultrasonic flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57062299A JPS58180945A (en) | 1982-04-16 | 1982-04-16 | Ultrasonic flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58180945A true JPS58180945A (en) | 1983-10-22 |
Family
ID=13196096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57062299A Pending JPS58180945A (en) | 1982-04-16 | 1982-04-16 | Ultrasonic flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58180945A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284465A (en) * | 1987-04-28 | 1988-11-21 | ビーアンドダブリュー・ニュークリア・サービス・カンパニー | Contact ultrasonic transducer head |
| JPH11326288A (en) * | 1998-05-15 | 1999-11-26 | Babcock Hitachi Kk | Probe hold mechanism for use in tube inner face |
| JP2002340866A (en) * | 2001-05-21 | 2002-11-27 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle flaw detector |
| KR101254123B1 (en) * | 2011-11-11 | 2013-04-12 | 주식회사 포스코 | Apparatus for forming grindstone-mark |
| JP2015526742A (en) * | 2012-09-05 | 2015-09-10 | ユナイテッド テクノロジーズ コーポレイションＵｎｉｔｅｄ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏｒｐｏｒａｔｉｏｎ | Floating head contour following holder for ultrasonic inspection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5461589A (en) * | 1977-10-26 | 1979-05-17 | Hitachi Ltd | Ultrasonic locating device for nozzle root |
| JPS5663250A (en) * | 1979-10-26 | 1981-05-29 | Mitsubishi Electric Corp | Flaw inspecting apparatus |
-
1982
- 1982-04-16 JP JP57062299A patent/JPS58180945A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5461589A (en) * | 1977-10-26 | 1979-05-17 | Hitachi Ltd | Ultrasonic locating device for nozzle root |
| JPS5663250A (en) * | 1979-10-26 | 1981-05-29 | Mitsubishi Electric Corp | Flaw inspecting apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284465A (en) * | 1987-04-28 | 1988-11-21 | ビーアンドダブリュー・ニュークリア・サービス・カンパニー | Contact ultrasonic transducer head |
| JPH11326288A (en) * | 1998-05-15 | 1999-11-26 | Babcock Hitachi Kk | Probe hold mechanism for use in tube inner face |
| JP2002340866A (en) * | 2001-05-21 | 2002-11-27 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle flaw detector |
| KR101254123B1 (en) * | 2011-11-11 | 2013-04-12 | 주식회사 포스코 | Apparatus for forming grindstone-mark |
| JP2015526742A (en) * | 2012-09-05 | 2015-09-10 | ユナイテッド テクノロジーズ コーポレイションＵｎｉｔｅｄ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏｒｐｏｒａｔｉｏｎ | Floating head contour following holder for ultrasonic inspection |
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