JPS5713353A - Ultrasonic flaw detecting method for weld - Google Patents

Ultrasonic flaw detecting method for weld

Info

Publication number
JPS5713353A
JPS5713353A JP8890680A JP8890680A JPS5713353A JP S5713353 A JPS5713353 A JP S5713353A JP 8890680 A JP8890680 A JP 8890680A JP 8890680 A JP8890680 A JP 8890680A JP S5713353 A JPS5713353 A JP S5713353A
Authority
JP
Japan
Prior art keywords
weld
thickness
flaw
probe
poor
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
JP8890680A
Other languages
Japanese (ja)
Inventor
Kin Baba
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP8890680A priority Critical patent/JPS5713353A/en
Publication of JPS5713353A publication Critical patent/JPS5713353A/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
    • G01N29/44—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
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • 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 decide whether a flaw has resulted from a weld part flaw or poor weld conditon, by a method wherein an ultrasonic flaw detection is performed by employing a flaw-detecting inclined probe and a thickness-measuring probe. CONSTITUTION:An electric welded steel tube 1 is continuously fed with the weld bead directed upward. An inclined probe of an ultrasonic flaw detector 11 is at- tached to a holding mechanism 13 and made to follow a weld line through an automatic or mannual operation. A thickness-measuring probe 6 of an ultrasonic thickness-measuring apparatus 10 is attached to a holding mechanism 14 and rocked con- stantly in order to measure the thickness of the vicinity of the weld bead. The flaw detection results obtained by the inclined probe includes flows resulting from the inclusion existing in the weld part, the inclusion existing in the body material and the poor configuration of the weld bead. The poor configuration of the weld bead detected by the thickness-measuring probe is detected as an abnormality in the thickness ment. If the result obtained by the inclined probe is judged on combining it with the weld bead poorness detecting signal, it is possible to decide whether the flaw detected by means of the inclined flaw detection has resulted from a weld part flow or poor bead configuration.
JP8890680A 1980-06-30 1980-06-30 Ultrasonic flaw detecting method for weld Pending JPS5713353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8890680A JPS5713353A (en) 1980-06-30 1980-06-30 Ultrasonic flaw detecting method for weld

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8890680A JPS5713353A (en) 1980-06-30 1980-06-30 Ultrasonic flaw detecting method for weld

Publications (1)

Publication Number Publication Date
JPS5713353A true JPS5713353A (en) 1982-01-23

Family

ID=13955983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8890680A Pending JPS5713353A (en) 1980-06-30 1980-06-30 Ultrasonic flaw detecting method for weld

Country Status (1)

Country Link
JP (1) JPS5713353A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457547A (en) * 1981-11-06 1984-07-03 Toyota Jidosha Kogyo Kabushiki Kaisha Bumper reinforcement structure for vehicles
JPH04151553A (en) * 1990-10-15 1992-05-25 Nkk Corp Method for detecting cut shape of inner surface of welded part of seam welded pipe
US9815424B2 (en) 2013-03-07 2017-11-14 Toray Carbon Magic Co., Ltd. Bumper device for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457547A (en) * 1981-11-06 1984-07-03 Toyota Jidosha Kogyo Kabushiki Kaisha Bumper reinforcement structure for vehicles
JPH04151553A (en) * 1990-10-15 1992-05-25 Nkk Corp Method for detecting cut shape of inner surface of welded part of seam welded pipe
US9815424B2 (en) 2013-03-07 2017-11-14 Toray Carbon Magic Co., Ltd. Bumper device for automobile

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