JPS60122369A - Method and device of inspection for vertically set tube - Google Patents

Method and device of inspection for vertically set tube

Info

Publication number
JPS60122369A
JPS60122369A JP58229643A JP22964383A JPS60122369A JP S60122369 A JPS60122369 A JP S60122369A JP 58229643 A JP58229643 A JP 58229643A JP 22964383 A JP22964383 A JP 22964383A JP S60122369 A JPS60122369 A JP S60122369A
Authority
JP
Japan
Prior art keywords
inspection device
standing
pipes
inspection
pipe
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.)
Granted
Application number
JP58229643A
Other languages
Japanese (ja)
Other versions
JPH0135299B2 (en
Inventor
Kunihiko Tsuji
辻　邦彦
Hiromi Hasegawa
博巳 長谷川
Hiroyuki Abe
裕之 阿部
Hideki Sugimura
杉村　秀樹
Yoshiaki Imoto
井本　善章
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP58229643A priority Critical patent/JPS60122369A/en
Publication of JPS60122369A publication Critical patent/JPS60122369A/en
Publication of JPH0135299B2 publication Critical patent/JPH0135299B2/ja
Granted legal-status Critical Current

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
    • 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
    • G01N2291/025—Change of phase or condition
    • G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils

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)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To facilitate the replacement of an inspecting device and inspect numbers of vertically set tubes easily and speedily by fitting the inspecting device to a truck which is movable on a horizontal run rail, and rearranging the inspecting device for every vertically set tube. CONSTITUTION:A movable truck 14 is coupled in a free elevation state with a truck 10 which moves along the horizontal run rail 4 by using a wire rope 12, and the ultrasonic flaw detector 7 is coupled under the truck 14. Consequently, the weight of the majority is supported by the rail 4 and the rearrangement of the inspecting device for a weight body for vertically set pipes is facilitated to inspect numbers of vertically set tubes which stand closely easily and speedily.

Description

【発明の詳細な説明】 本発明は立設管の超音波による非破壊探傷の検査方法お
よびその装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for non-destructive flaw detection using ultrasonic waves for vertical pipes.

ｉ投雪としてす７７ｊ−マ管を例２する２、加熱炉中に
多数の立設管が密集して林立している。Example 2: A large number of standing pipes are placed in a dense forest in a heating furnace.

１例の管間の間隔は八がＸｌｌり抜けられない程度、列
間の間隔は人が横歩きできる程度に狭い、管高はＩＯｍ
程度で、長さ８〜４ｍ程度のオーステナイト系＃熱鋼の
遠心鋳造管を溶接によりａ足してつくられる０１〜２年
程度では異常がなくても歌手も経過すると、腐蝕、溶接
部のひび割れがクリープにより生じている可能性があり
、超音波探傷による非破壊検査を行なって管の寿命を調
べる必要がある〇 特開昭５５−１８８５２　、持胸唱５７−１０８７５８
にはこの′ｉｋ立設管の検査装置の先行技術が開示され
ている。これら装置は列設されている立設管に取付替す
るため２つ割ユニットとし友超音波探傷装＠金管軸芯の
まわりに探触子全角変位させかつ管の長手方向に昇降可
能とするため、上位の自虐機から複雑な連結具、保持具
等を介し連結されており、駆動機構、ユーティリティを
含むこの装置の全体のｍ１はかなり重く、この重量物を
前記のように窮屈な場所で取付替することはかなり困難
である。In one example, the spacing between the pipes is so small that eight people cannot fit through it, the spacing between the rows is narrow enough for a person to walk sideways, and the pipe height is IOm.
In 2001 to 2002, when a centrifugally cast austenitic #thermal steel tube with a length of 8 to 4 meters was welded, there were no abnormalities, but as time passed, corrosion and cracks in the welded parts occurred. This may be caused by creep, and it is necessary to conduct a non-destructive test using ultrasonic flaw detection to check the life of the pipe.
discloses the prior art of this 'ik standing pipe inspection device. These devices are split into two units in order to be installed on standing pipes that are installed in a row.Ultrasonic flaw detection system@The probe can be displaced by a full angle around the axis of the brass tube and can be moved up and down in the longitudinal direction of the tube. , it is connected to the higher-level masochistic machine via complicated couplings, holders, etc., and the entire m1 of this device, including the drive mechanism and utilities, is quite heavy, and it is difficult to install this heavy object in a cramped place as mentioned above. It is quite difficult to replace.

ｉ＆置の取付替およびポンプ、防水シート、水槽の移動
等の検査準備時間は約９０分かかり、検査の実施は管１
４当り約８０分で終るが１日に約５〜６本の立設管しか
検査できｌいのが現状である。It takes about 90 minutes to prepare for the inspection, including replacing the i & moving the pump, tarpaulin, and water tank.
It takes about 80 minutes per test, but currently only about 5 to 6 pipes can be inspected per day.

本発明は先行技術の作業上の前記諸因＠Ｖｌ解決を与え
るためＫなされたものであって、以下添付図を参照しそ
の方法を装置構成と共に詳細に説明する◎ 第１図は本発明の第１実施例を示り、Ｒ膜管（１）はり
７オーマチユグとしその多数本が炉天井（２）と炉底（
３）との間に列設されている。立設管（ＩＡ）　（ＩＢ
）を両端の立設管に選びその間に介在する例示１５本の
立設管（１）　Ｋまたがる範囲に水平に延びる走行レー
ル（４）を用意し１これと一体または別体の走行台車（
駆動装置）Ｃ５１）Ｃ５Ｂ）をそれぞれ両端のＲ膜管（
ＩＡ）　（ＩＢ）に装着し、走行台車（５Ａ）（５Ｂ）
　Ｋより走行レール（４）を水平姿勢のまま″ｉ股管群
の上部に持上げその位置に固定状態に保つ。走行台車（
５Ａ）　（５Ｂ）　Ｖ１走行レール（４）からの荷重に
よっては降下しない力量を持つ構造とする。その１例と
して図中略示のようにＲ膜管（ＩＡ）（ＩＢ）を挾む車
枠（ａ）　（７）をクロスリンク（８）、ばね等で連結
しそれＶＣ装備した４つの車輪（９）を立設管（ＩＡ）
　（ＩＢ）に圧接してワオーム減速機付モータで駆動す
る構造が有利に採用できる０走行レール（４）ニはそれ
に沿って左右方向に自由走行により移動可能な台車αＱ
を装架Ｌ１この実施例では台車叫に巻上クインチ（ロ）
を装備し、クインチ（ロ）から下方に延びる巻上下ワイ
ヤロープ＠の７ツク０をＲ膜管（１）Ｋセントした移動
台車′ａ◆の・・フカ（至）に掛合せる。そして移動台
ＪＥα◆の直下に検査装置Ｍを連結するＯ 検量装置ｕ１は超音波探傷分野の技術により構成される
ものであり、それを吹付けｆｃ立設管（１）の軸芯のま
わりに回転自在η探触子を有し、まｆｃ２つ割＆造とし
て列設された立設管（１）に取付替できるようＫなって
いる。そして管長手方向には移動台車１２４１とともに
ワイヤロープ曹を介し巻上クインチ（ロ）の巻込み、巻
戻しにより上下され昇降自在である。ｔ、ＪＩＥＩＩ台
車Ｑ４はワイヤロープ（６）が切れても検査装置（至）
を落下させないための安全装置が具備されたものであり
、ワイヤロープ（６）の切断（九よりカムが回動してＸ
Ｌ設膜管１）Ｋ噴込みａ＊夾にその場で停止するようＫ
なっている口 第２図は本発明の第２実施例を示し、第１図第１実施例
と均等の各部は同−符８ＶＣより示し。The present invention has been made in order to solve the above-mentioned causes of work in the prior art, and the method will be explained in detail below with reference to the attached drawings, together with the device configuration. The first embodiment is shown, and the R membrane tube (1) is 7-ohm.
3). Stand pipe (IA) (IB
) are selected as the standing pipes at both ends, and a running rail (4) extending horizontally across the range of 15 standing pipes (1) K is selected, and 1.
Drive device)C51)C5B) respectively with R membrane tubes (
IA) (IB) and traveling trolley (5A) (5B)
From K, lift the running rail (4) in a horizontal position to the top of the crotch tube group ``i'' and keep it fixed in that position.
5A) (5B) The structure shall have enough strength to not fall due to the load from the V1 running rail (4). As an example, as shown schematically in the figure, a vehicle frame (a) (7) that sandwiches R membrane tubes (IA) (IB) is connected with a cross link (8), a spring, etc., and four wheels (9) equipped with VC are connected. ) to stand pipe (IA)
0 traveling rail (4) which can advantageously employ a structure in which it is pressed against (IB) and driven by a motor with a wa-ohm speed reducer is a trolley αQ that can freely travel along it in the left and right directions.
In this example, a quinch (ro) is mounted on the truck.
Equipped with a quinch (b), hook the winding up and down wire rope @ 7 ts 0 extending downward from the R membrane tube (1) to the hook (to) of the movable trolley 'a◆'. Then, the inspection device M is connected directly under the moving table JEα◆. It has a rotatable η probe and is designed so that it can be attached to the standing pipes (1) arranged in a row as a two-part structure. In the longitudinal direction of the tube, the tube can be raised and lowered by winding and unwinding with a winding quinch (b) via a wire rope along with a movable cart 1241. t, JIE II trolley Q4 does not work even if the wire rope (6) breaks, the inspection device (to)
It is equipped with a safety device to prevent the wire rope (6) from falling (the cam rotates from the
L membrane installation pipe 1) K injection a*K to stop on the spot
2 shows a second embodiment of the present invention, and parts equivalent to those of the first embodiment in FIG. 1 are indicated by the same reference numerals 8VC.

説明の重複を省略する◎ 第２実施例では両端の立設管（ｌｘ）（ＩＢ）　Ｋそれ
ぞれロック装置（１７Ａ）　（１７Ｂ）を収付けて使用
する。このロック装置（１７Ａ）（１７Ｂ）は例えばテ
コ式ブレーキ機構に滑車式倍力機柊を組合せたものとす
る。最初に前実施例で述べた走行台車（５７）（５Ｂ）
を使用してロック装置（１７Ａ）　（１７Ｂ）を立設’
ｌ　（１ム）　（ＩＢ）の上部に押上げる。押上後、走
行台車（５Ａ）　（５Ｂ）を降下させてもロック装置（
１７Ａ）（１７Ｂ）　Ｋはテコ比率のブレーキ力が働く
のでロック装置（１７Ａ）　（１７Ｂ）は降下せず、上
昇位置に１．Ω こうして走行レール（４）の両端のブラケット（ゝ１８
Ａ）（１８Ｂ）からのワイヤロープ（１９Ａ）（１９Ｂ
）をそれぞれロック装置（１７Ａ）（１７Ｂ）の倍力滑
車Ｃ２ＯＡ）（２０Ｂ）Ｋ巻掛けて下方ＶＣ導き別置の
巻掛装置（２１Ａ）（２１Ｂ）　Ｋ連結し、巻掛装置（
２ｍＡ）（２１Ｂ）　Ｋ　ヨ！ｌ走行レール（４）を水
平状態のままロック装置（１７Ａ）（１７Ｂ）の直下の
上位まで上昇させその位置に保持する。◎ In the second embodiment, locking devices (17A) (17B) are housed in the standing pipes (lx) (IB) (IB) K at both ends. The lock devices (17A) (17B) are, for example, a combination of a lever type brake mechanism and a pulley type booster. First, the traveling trolley (57) (5B) described in the previous example
Install the locking device (17A) (17B) using
l (1m) Push up to the top of (IB). Even if the traveling trolley (5A) (5B) is lowered after being pushed up, the locking device (
17A) (17B) Since the lever ratio braking force is applied to K, the locking device (17A) (17B) does not descend and is in the raised position. Ω In this way, the brackets (ゝ18) at both ends of the running rail (4)
A) Wire rope (19A) from (18B) (19B)
) are wound around the boosting pulleys C2OA) (20B) of the locking devices (17A) (17B), respectively, and the VC is connected downward to the separately installed winding devices (21A) (21B), and the winding devices (
2mA) (21B) K Yo! 1. Raise the traveling rail (4) in a horizontal state to the upper level directly below the locking devices (17A) (17B) and hold it in that position.

ロｙり装ｖ１（＋７Ａ）　（１７Ｂ）　［ｎ倍力機構ｖ
ｒ　、ｊ：　Ｄ　ツイヤロープ張力か増強されてブレー
キ力が働くので走行レール（４）からの荷重によって降
下することはない。検査装置（６）は前実施例と同様、
走行レール（４）上に左右移動可能な台車α１ＪＫｉｔ
けた巻上クィンチ（ロ）Ｋ連結され、各立設管（１）　
（ＩＡ）（ＩＢ）に沿い高い位Ｉｔまで自在に昇降させ
ることができる。Royry equipment v1 (+7A) (17B) [n boost mechanism v
r, j: D Since the tension of the twist rope is increased and the braking force is applied, it will not fall due to the load from the traveling rail (4). The inspection device (6) is the same as the previous example.
Dolly α1JKit that can be moved left and right on the running rail (4)
Girder hoisting quinches (b) K are connected, each standing pipe (1)
It can be freely raised and lowered along (IA) and (IB) to a high position It.

第３図は本発明の第３実施例を示し、前実施例と均等の
部分は同−符８により示す。前第１実施例および第２実
施例においては、台車αＱＫ第４図に示すような巻上ワ
インチ（ロ）を装備しその巻胴（２）からのワイヤロー
プ（６）Ｋ移ｍ台阜ａ◆、検査装置四を連結して検査装
置αＱを立設管（１）あるいは（ＩＡ）　（ＩＢ）　Ｖ
Ｃ昇降自在としているが、この第３実施例では巻上クィ
ンチは省略され、台車αＯのフック０を移動台車ａ樽の
・・ンカ四に直接掛合わせ、移動台車Ｑ４１　Ｖｃ連結
した超音波検査装置鱒は走行台車（５Ａ）　（５Ｂ）が
両端のＭ膜管ＣＩＡ）　（ＩＢ）に沿い走行レール（４
）と共に昇降することによりその間の立設間（１）　Ｖ
Ｃ昇降自在となるようになっている。FIG. 3 shows a third embodiment of the present invention, in which parts equivalent to the previous embodiment are designated by the same reference numeral 8. In the first and second embodiments, the carriage αQK is equipped with a hoisting windch (b) as shown in FIG. ◆, connect the four inspection devices and install the inspection device αQ in the vertical pipe (1) or (IA) (IB) V
However, in this third embodiment, the hoisting quinch is omitted, and the hook 0 of the cart αO is directly hooked on the hook 4 of the moving cart A barrel, and the ultrasonic inspection device is connected to the moving cart Q41 Vc. The trout is carried along the running rail (4
) by going up and down along with the standing distance (1) V
C It is designed to be able to be raised and lowered freely.

上記各実施例を通じて立役管から立設管への検査装置Ｑ
りへの取付替および検査装置ｔに）の当該ｎ膜管沿いの
昇降の作用は既に説明されているとおりである。Inspection device Q from stand pipe to stand pipe through each of the above embodiments
The operation of reinstallation to the tube and the lifting and lowering of the inspection device (t) along the n-membrane tube are as already explained.

本発明によると、検査装置の取付替に際して検査装置１
１（６）および移動台車燵◆の重１は台車（至）を介し
走行レール（４）に支承δれるので取付替は軽易な力で
実施することができるので作業能率は格段に上る。また
台車ａ１は検査装置０９を収付ける立設管の直上の個所
に走行レール（４）上を自由に追随走行して来るので′
ｉＬ設管膜管）および支保の立設管（ＩＡ）　（夏Ｂ）
等には横方向力が作用せず炉天井（２）、炉底（Ｓ）　
ＶＩ−過大な力が作用することが防止される等の効果が
同時に得られる。According to the present invention, when replacing the inspection device, the inspection device 1
1 (6) and the weight 1 of the movable trolley ◆ is supported by the traveling rail (4) via the trolley (to), so that the installation and replacement can be carried out with light force, and the work efficiency is greatly improved. In addition, the trolley a1 freely follows on the traveling rail (4) directly above the standpipe that houses the inspection device 09.
iL installation membrane pipe) and support standing pipe (IA) (Summer B)
No lateral force acts on the furnace ceiling (2), furnace bottom (S), etc.
VI- At the same time, effects such as preventing excessive force from acting are obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の第１実施例の正面図、第２図は本発明
の第２実施例の正面図、第３図は本発明の第３実施例の
正面図、第４図は台車、巻上クインチの１例の縦断側面
図である。 （１）　（ＩＡ）（ＩＢ）（ＩＡ）（ＩＢ）・・ＸＬ設
膜管（２）・・炉天井、（３）・・炉底、（４）・・走
行レール、（５ム）（５Ｂ）（５Ａ’０５Ｂ’）・・走
行台車、（６）　（７ン・・車枠、（８）・・クロスリ
ンク％　（９）・・車輪、αＩＱＱ・・台車、四ｅ・巻
上クインチ、＠―・ワイヤロープ、（至）□□□・・フ
ック、（１４１・・移動台車、’ｃｑ・・・・ンカ、ｑ
ｌ・・超音波探傷検査装置％　（１７ＡＸ１７Ｂ）・・
ロック装置ｓ　（ｔｓｘＸｔｇＢ）・・ブラケット、（
夏９Ａ）（１９Ｂ）−−ワイヤロープｓ　（ｚｏ＊Ｘ２
ｏｎ）　−−倍力滑車＋　（２１Ａ）（２１Ｂ）・・巻
揚装置、四・・巻胴。Fig. 1 is a front view of the first embodiment of the present invention, Fig. 2 is a front view of the second embodiment of the invention, Fig. 3 is a front view of the third embodiment of the invention, and Fig. 4 is a front view of the trolley. FIG. 2 is a vertical sectional side view of an example of a winding quinch. (1) (IA) (IB) (IA) (IB)...XL membrane pipe (2)...Furnace ceiling, (3)...Furnace bottom, (4)...Travel rail, (5mm) ( 5B) (5A'05B')...Travelling bogie, (6) (7n...car frame, (8)...cross link% (9)...wheels, αIQQ...bogie, 4e hoisting quinch, @--Wire rope, (to) □□□...Hook, (141...Moving trolley, 'cq...Nka, q
l...Ultrasonic flaw detection inspection device% (17AX17B)...
Lock device s (tsxXtgB)...Bracket, (
Summer 9A) (19B)--wire rope s (zo*X2
on) -- Boosting pulley + (21A) (21B)...Hoisting device, 4...Hoisting drum.

Claims (4)

【特許請求の範囲】[Claims] （１）　立設管軸芯まわりで回転自在な探触子を有する
超音波探傷検査装置を管長手刀向に昇降自在とした立設
管検査方法において、２本以上の列設された立設管にま
たがる走行レールを水平に保って昇降可能なように両端
の２本の″ｉ股管に９付ける工程、該水平走行レール上
を左右移動可能な台車に検査装置をと９っけ立設管毎に
検査装置をっけかえて検査することを特徴とする立設管
検査方法〇(1) In a standing pipe inspection method in which an ultrasonic flaw detection inspection device having a probe that can freely rotate around the axis of the standing pipe can be raised and lowered in the longitudinal direction of the pipe, two or more standing pipes are arranged in a row. The process of attaching 9 to the two crotch pipes at both ends so that the running rail that straddles the rail can be raised and lowered horizontally, and the inspection device is attached to a trolley that can be moved left and right on the horizontal running rail, and the 9 erect pipes are installed. A standing pipe inspection method characterized by changing the inspection device every time the inspection is performed. （２）２本以上の列設された立設管にまたが９両端で２
本の立設管に対し水平状態を保って昇降可能な走行レー
ルと、走行レール上を左右移動可能な台車と、該台車に
連結され管軸芯のまわりで回転自在な探触子を有し２つ
ｌ！ＰＪ構造で立設管に付けかえ可ｉな検査装置とから
なる立設管検査装置◎(2) Two or more standing pipes installed in a row are straddled by 9 at both ends.
It has a running rail that can be raised and lowered while maintaining a horizontal state with respect to the standing pipe, a trolley that can move left and right on the running rail, and a probe that is connected to the trolley and can rotate freely around the pipe axis. Two! Standing pipe inspection equipment consisting of an inspection device that can be replaced with standing pipes with PJ structure◎ （３）　検査装置が台車上の巻上クィンチを介し台車Ｋ
ｌｔＸ付けられていることを特徴とする特許請求の範囲
第２項に記載の立設管検査装置。(3) The inspection device connects to the truck K via the hoisting quinch on the truck.
The standpipe inspection device according to claim 2, characterized in that it is marked with ltX. （４）　検査装置が台車に直接連結され釣り下げられて
いることを特徴とする待ｔＦ請求の範囲第２項記載の立
設管検査装置。(4) The standpipe inspection device according to claim 2, wherein the inspection device is directly connected to and suspended from a trolley.
JP58229643A 1983-12-05 1983-12-05 Method and device of inspection for vertically set tube Granted JPS60122369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58229643A JPS60122369A (en) 1983-12-05 1983-12-05 Method and device of inspection for vertically set tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58229643A JPS60122369A (en) 1983-12-05 1983-12-05 Method and device of inspection for vertically set tube

Publications (2)

Publication Number Publication Date
JPS60122369A true JPS60122369A (en) 1985-06-29
JPH0135299B2 JPH0135299B2 (en) 1989-07-25

Family

ID=16895410

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58229643A Granted JPS60122369A (en) 1983-12-05 1983-12-05 Method and device of inspection for vertically set tube

Country Status (1)

Country Link
JP (1) JPS60122369A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61176849A (en) * 1985-02-01 1986-08-08 Hitachi Ltd Automatic ultrasonic flaw detector for piping group
CN106078565A (en) * 2016-08-11 2016-11-09 菲舍尔航空部件（镇江）有限公司 Ultrasonic C-Scan instrument clamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61176849A (en) * 1985-02-01 1986-08-08 Hitachi Ltd Automatic ultrasonic flaw detector for piping group
JPH0574784B2 (en) * 1985-02-01 1993-10-19 Hitachi Ltd
CN106078565A (en) * 2016-08-11 2016-11-09 菲舍尔航空部件（镇江）有限公司 Ultrasonic C-Scan instrument clamps

Also Published As

Publication number Publication date
JPH0135299B2 (en) 1989-07-25

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