JPS5518974A - Ultrasonic flaw detector - Google Patents

Ultrasonic flaw detector

Info

Publication number
JPS5518974A
JPS5518974A JP9235078A JP9235078A JPS5518974A JP S5518974 A JPS5518974 A JP S5518974A JP 9235078 A JP9235078 A JP 9235078A JP 9235078 A JP9235078 A JP 9235078A JP S5518974 A JPS5518974 A JP S5518974A
Authority
JP
Japan
Prior art keywords
tire
flaw
test piece
angle
curved
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
JP9235078A
Other languages
Japanese (ja)
Inventor
Shigeru Kajiyama
Kimio Kanda
Tsunehiko Omori
Koji Fujimoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9235078A priority Critical patent/JPS5518974A/en
Publication of JPS5518974A publication Critical patent/JPS5518974A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To make it possible to highly accurately detect a flaw of a test piece having a curvaure by turning the ultrasonic oscillator in a tire-shaped detector independently of the rotations of a tire.
CONSTITUTION: If a flaw is detected from the surface of a curved portion 3 while a tire-shaped detector 11 is being run, the oscillator 12 in a tire is continuously and reciprocally moved between positions 12b and 12c independently of the rotations of the tire within the range of an angle θ1 in accordance with the shape of a guide 23 thereby to guide the ultrasonic beam into a test piece within a range of angle θ2. With this scanning operation, the crack 8 can be irradiated at a right angle for the portion 7 of the test piece, which has a curved inner side, with the use of a beam coming tangentially with respect to the curved portion 7 so that a reflected beam having a sufficient intensity. The detector 11 is equipped with a turning mechanism and a swinging mechanism and is made capable of contacting with the curved surface to be detected so that the flaw detectivity can be remarkably improved.
COPYRIGHT: (C)1980,JPO&Japio
JP9235078A 1978-07-28 1978-07-28 Ultrasonic flaw detector Pending JPS5518974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9235078A JPS5518974A (en) 1978-07-28 1978-07-28 Ultrasonic flaw detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9235078A JPS5518974A (en) 1978-07-28 1978-07-28 Ultrasonic flaw detector

Publications (1)

Publication Number Publication Date
JPS5518974A true JPS5518974A (en) 1980-02-09

Family

ID=14051947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9235078A Pending JPS5518974A (en) 1978-07-28 1978-07-28 Ultrasonic flaw detector

Country Status (1)

Country Link
JP (1) JPS5518974A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148248A (en) * 1981-03-10 1982-09-13 Hitachi Ltd Ultrasonic defect finding device
JP2007170877A (en) * 2005-12-19 2007-07-05 Mitsubishi Heavy Ind Ltd Ultrasonic flaw detection method and ultrasonic flaw detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148248A (en) * 1981-03-10 1982-09-13 Hitachi Ltd Ultrasonic defect finding device
JPH0134342B2 (en) * 1981-03-10 1989-07-19 Hitachi Seisakusho Kk
JP2007170877A (en) * 2005-12-19 2007-07-05 Mitsubishi Heavy Ind Ltd Ultrasonic flaw detection method and ultrasonic flaw detector

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