JPS6410777B2 - - Google Patents

Info

Publication number
JPS6410777B2
JPS6410777B2 JP56152472A JP15247281A JPS6410777B2 JP S6410777 B2 JPS6410777 B2 JP S6410777B2 JP 56152472 A JP56152472 A JP 56152472A JP 15247281 A JP15247281 A JP 15247281A JP S6410777 B2 JPS6410777 B2 JP S6410777B2
Authority
JP
Japan
Prior art keywords
flaw detection
probes
crack
defects
defect
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.)
Expired
Application number
JP56152472A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5853756A (ja
Inventor
Akio Takahashi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP56152472A priority Critical patent/JPS5853756A/ja
Publication of JPS5853756A publication Critical patent/JPS5853756A/ja
Publication of JPS6410777B2 publication Critical patent/JPS6410777B2/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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • 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
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/48—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by amplitude comparison
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • 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
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside
    • 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
    • G01N2291/2675—Seam, butt welding

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP56152472A 1981-09-25 1981-09-25 鋼管の欠陥弁別方法 Granted JPS5853756A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56152472A JPS5853756A (ja) 1981-09-25 1981-09-25 鋼管の欠陥弁別方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56152472A JPS5853756A (ja) 1981-09-25 1981-09-25 鋼管の欠陥弁別方法

Publications (2)

Publication Number Publication Date
JPS5853756A JPS5853756A (ja) 1983-03-30
JPS6410777B2 true JPS6410777B2 (enrdf_load_stackoverflow) 1989-02-22

Family

ID=15541258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56152472A Granted JPS5853756A (ja) 1981-09-25 1981-09-25 鋼管の欠陥弁別方法

Country Status (1)

Country Link
JP (1) JPS5853756A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236349A (ja) * 1988-07-26 1990-02-06 Kawasaki Steel Corp 電縫鋼管の継目溶接部の超音波探傷における欠陥判定方法
JPH03160362A (ja) * 1989-11-17 1991-07-10 Jgc Corp 超音波探傷法
JP5419592B2 (ja) * 2009-08-21 2014-02-19 三菱重工業株式会社 超音波検査用探触子および超音波検査装置

Also Published As

Publication number Publication date
JPS5853756A (ja) 1983-03-30

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