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JPS5722555A - Ultrasonic defect detection method for welded part of electrically welded tube - Google Patents

Ultrasonic defect detection method for welded part of electrically welded tube

Info

Publication number
JPS5722555A
JPS5722555A JP9716880A JP9716880A JPS5722555A JP S5722555 A JPS5722555 A JP S5722555A JP 9716880 A JP9716880 A JP 9716880A JP 9716880 A JP9716880 A JP 9716880A JP S5722555 A JPS5722555 A JP S5722555A
Authority
JP
Japan
Prior art keywords
ultrasonic beam
tube
welded part
probe
welded
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
Application number
JP9716880A
Other languages
Japanese (ja)
Inventor
Shinichi Fukuda
Kensuke Sakurai
Masaki Kajiyama
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
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP9716880A priority Critical patent/JPS5722555A/en
Publication of JPS5722555A publication Critical patent/JPS5722555A/en
Pending 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
    • G01N29/221—Arrangements for directing or focusing the acoustical waves
    • 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
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/056—Angular incidence, angular propagation
    • 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)
  • Acoustics & Sound (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 enhace the rate of detecting welding defects which are highly harmful by setting the angle of refraction of an ultrasonic beam to be 65 deg.-85 deg., and positioning a probe so that the dispersed refracted ultrasonic beam directly strikes the welded part on the outer surface of the tube. CONSTITUTION:The incident angle i of the ultrasonic beam 5 from the probe 3 is set, so that angle of refraction theta3 of the ultrasonic beam in the tube 1 can be set at 65 deg.-85 deg.. The position Ld of the probe 3 is determined so that the refracted ultrasonic beam X directly strikes against the welded part D3 of the center surface of the tube. In this method, the detection rate of the defects A and B in the parent part wherein the degree of harm is low is suppressed to a low level, and the detection rate of the very harmful welding defects C which extend from the center of the thickness to the outside is increased.
JP9716880A 1980-07-16 1980-07-16 Ultrasonic defect detection method for welded part of electrically welded tube Pending JPS5722555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9716880A JPS5722555A (en) 1980-07-16 1980-07-16 Ultrasonic defect detection method for welded part of electrically welded tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9716880A JPS5722555A (en) 1980-07-16 1980-07-16 Ultrasonic defect detection method for welded part of electrically welded tube

Publications (1)

Publication Number Publication Date
JPS5722555A true JPS5722555A (en) 1982-02-05

Family

ID=14185040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9716880A Pending JPS5722555A (en) 1980-07-16 1980-07-16 Ultrasonic defect detection method for welded part of electrically welded tube

Country Status (1)

Country Link
JP (1) JPS5722555A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02173562A (en) * 1988-12-27 1990-07-05 Nippon Steel Corp Method and device for ultrasonic flaw detection for steel pipe
WO2014007023A1 (en) * 2012-07-04 2014-01-09 新日鐵住金株式会社 Defect detection device, defect detection method, program, and storage medium
JP2019219344A (en) * 2018-06-22 2019-12-26 日本製鉄株式会社 Ultrasonic inspection method for pipe weld zone

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302453A (en) * 1963-04-15 1967-02-07 American Mach & Foundry Method of inspection utilizing ultrasonic energy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3302453A (en) * 1963-04-15 1967-02-07 American Mach & Foundry Method of inspection utilizing ultrasonic energy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02173562A (en) * 1988-12-27 1990-07-05 Nippon Steel Corp Method and device for ultrasonic flaw detection for steel pipe
WO2014007023A1 (en) * 2012-07-04 2014-01-09 新日鐵住金株式会社 Defect detection device, defect detection method, program, and storage medium
CN104350381A (en) * 2012-07-04 2015-02-11 新日铁住金株式会社 Defect detection device, defect detection method, program, and storage medium
CN104350381B (en) * 2012-07-04 2017-06-23 新日铁住金株式会社 Defect detecting device, defect inspection method
JP2019219344A (en) * 2018-06-22 2019-12-26 日本製鉄株式会社 Ultrasonic inspection method for pipe weld zone

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