JPS53115286A - Internal defect detecting method of steel - Google Patents

Internal defect detecting method of steel

Info

Publication number
JPS53115286A
JPS53115286A JP2869377A JP2869377A JPS53115286A JP S53115286 A JPS53115286 A JP S53115286A JP 2869377 A JP2869377 A JP 2869377A JP 2869377 A JP2869377 A JP 2869377A JP S53115286 A JPS53115286 A JP S53115286A
Authority
JP
Japan
Prior art keywords
steel
detecting method
defect detecting
internal defect
examined
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
JP2869377A
Other languages
Japanese (ja)
Other versions
JPS58626B2 (en
Inventor
Kazuo Miyagawa
Yukito Sasaki
Shinichiro Kimura
Naoya Matsuda
Shuichi Sato
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 JP52028693A priority Critical patent/JPS58626B2/en
Publication of JPS53115286A publication Critical patent/JPS53115286A/en
Publication of JPS58626B2 publication Critical patent/JPS58626B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To achieve the detection of defects that will cut off a coustic waves by striking one of the surfaces of the material to be examined with a striker, receiving the waves in an electromagnetic type acoustic wave peceiver at the opposing point, measureing the acoustic wave arrival time and comparing said time with the arrival time determined by the thickness of the object to be examined.
JP52028693A 1977-03-17 1977-03-17 Method for detecting internal defects in steel Expired JPS58626B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52028693A JPS58626B2 (en) 1977-03-17 1977-03-17 Method for detecting internal defects in steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52028693A JPS58626B2 (en) 1977-03-17 1977-03-17 Method for detecting internal defects in steel

Publications (2)

Publication Number Publication Date
JPS53115286A true JPS53115286A (en) 1978-10-07
JPS58626B2 JPS58626B2 (en) 1983-01-07

Family

ID=12255550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52028693A Expired JPS58626B2 (en) 1977-03-17 1977-03-17 Method for detecting internal defects in steel

Country Status (1)

Country Link
JP (1) JPS58626B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60211361A (en) * 1984-04-06 1985-10-23 Kajima Corp Striking device of peeling detector for wall surface tile or the like
JPS6176952A (en) * 1984-09-22 1986-04-19 Syst Maintenance:Kk Method and device for flaw detection of nonmetallic material by infrasonic wave
JPH02310465A (en) * 1989-05-25 1990-12-26 Natl Food Res Inst Apparatus and method for measuring maturity degree of vegetables and fruits
JP2015208825A (en) * 2014-04-28 2015-11-24 株式会社スギノマシン Uncut determination method in cutting work and cutting work device
JP2017138177A (en) * 2016-02-03 2017-08-10 Ｊｆｅ物流株式会社 Striking device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60181132U (en) * 1984-05-11 1985-12-02 古河電気工業株式会社 Wire twist preventer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60211361A (en) * 1984-04-06 1985-10-23 Kajima Corp Striking device of peeling detector for wall surface tile or the like
JPH0254904B2 (en) * 1984-04-06 1990-11-22 Kajima Corp
JPS6176952A (en) * 1984-09-22 1986-04-19 Syst Maintenance:Kk Method and device for flaw detection of nonmetallic material by infrasonic wave
JPH02310465A (en) * 1989-05-25 1990-12-26 Natl Food Res Inst Apparatus and method for measuring maturity degree of vegetables and fruits
JP2015208825A (en) * 2014-04-28 2015-11-24 株式会社スギノマシン Uncut determination method in cutting work and cutting work device
JP2017138177A (en) * 2016-02-03 2017-08-10 Ｊｆｅ物流株式会社 Striking device

Also Published As

Publication number Publication date
JPS58626B2 (en) 1983-01-07

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees