JPS55116251A - Method and apparatus for detecting oblique crack in seamless pipe by supersonic wave - Google Patents

Method and apparatus for detecting oblique crack in seamless pipe by supersonic wave

Info

Publication number
JPS55116251A
JPS55116251A JP2422179A JP2422179A JPS55116251A JP S55116251 A JPS55116251 A JP S55116251A JP 2422179 A JP2422179 A JP 2422179A JP 2422179 A JP2422179 A JP 2422179A JP S55116251 A JPS55116251 A JP S55116251A
Authority
JP
Japan
Prior art keywords
probe
seamless pipe
supersonic wave
pipe
oblique crack
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
JP2422179A
Other languages
Japanese (ja)
Other versions
JPS5933226B2 (en
Inventor
Shinichi Fukuda
Tadayuki Okinaka
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 JP54024221A priority Critical patent/JPS5933226B2/en
Publication of JPS55116251A publication Critical patent/JPS55116251A/en
Publication of JPS5933226B2 publication Critical patent/JPS5933226B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To detect an oblique crack in a seamless pipe by a method wherein a supersonic wave beam is slanted in a plane parallel to the pipe axis including the direction of the incident beam so that it falls on an oblique crack at right angles to it.
CONSTITUTION: By deflecting probe 3, the supersonic wave beam is deflected in a circumferential direction of the pipe. Further, by deflecting probe 3 by an angle α in a plane parallel to the pipe axis including the direction of the incident beam, the beam is caused to fall on oblique crack 2 nearly at right angles to it. The angle α is set at 5° to 20°. At the time of inspection, seamless pipe 1 in water 4 is transported in the longitudinal direction while it is being rotated. Head 8 of probe 3 is fitted to arm 9, which is fitted to a holding plate. and the horizontal distance y between probe 3 and seamless pipe 1 is adjusted. At the same time, the amount of deflection x of probe 3 and the angle α are adjusted. These adjustments are performed by micrometer screws 10, 14 and 17.
COPYRIGHT: (C)1980,JPO&Japio
JP54024221A 1979-03-01 1979-03-01 Method and device for detecting diagonal cracks in seamless pipes using ultrasonic waves Expired JPS5933226B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54024221A JPS5933226B2 (en) 1979-03-01 1979-03-01 Method and device for detecting diagonal cracks in seamless pipes using ultrasonic waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54024221A JPS5933226B2 (en) 1979-03-01 1979-03-01 Method and device for detecting diagonal cracks in seamless pipes using ultrasonic waves

Publications (2)

Publication Number Publication Date
JPS55116251A true JPS55116251A (en) 1980-09-06
JPS5933226B2 JPS5933226B2 (en) 1984-08-14

Family

ID=12132223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54024221A Expired JPS5933226B2 (en) 1979-03-01 1979-03-01 Method and device for detecting diagonal cracks in seamless pipes using ultrasonic waves

Country Status (1)

Country Link
JP (1) JPS5933226B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050450A (en) * 1983-08-31 1985-03-20 Aichi Steel Works Ltd Ultrasonic flaw detection and its apparatus for round- sectioned material
WO2009123035A1 (en) 2008-03-31 2009-10-08 住友金属工業株式会社 Method and device for ulatrasonic flaw probing
US8490490B2 (en) 2005-08-26 2013-07-23 Nippon Steel & Sumitomo Metal Corporation Ultrasonic probe, ultrasonic testing equipment, ultrasonic testing method, and manufacturing method of seamless pipe or tube
JP2017020561A (en) * 2015-07-09 2017-01-26 Ntn株式会社 Manufacturing method of outside joint member of constant velocity universal joint, and ultrasonic scratch inspection method of weld part
CN107894460A (en) * 2017-12-25 2018-04-10 常州常宝精特钢管有限公司 A kind of body is oblique to hinder method of detection
CN108195944A (en) * 2017-12-25 2018-06-22 常州常宝精特钢管有限公司 A kind of oblique wound of tube body is popped one's head in and failure detector

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050450A (en) * 1983-08-31 1985-03-20 Aichi Steel Works Ltd Ultrasonic flaw detection and its apparatus for round- sectioned material
JPH0361904B2 (en) * 1983-08-31 1991-09-24 Aichi Seiko Kk
US8490490B2 (en) 2005-08-26 2013-07-23 Nippon Steel & Sumitomo Metal Corporation Ultrasonic probe, ultrasonic testing equipment, ultrasonic testing method, and manufacturing method of seamless pipe or tube
US8776604B2 (en) 2005-08-26 2014-07-15 Nippon Steel & Sumitomo Metal Corporation Ultrasonic probe, ultrasonic testing equipment, and ultrasonic testing method
WO2009123035A1 (en) 2008-03-31 2009-10-08 住友金属工業株式会社 Method and device for ulatrasonic flaw probing
US9335301B2 (en) 2008-03-31 2016-05-10 Nippon Steel & Sumitomo Metal Corporation Ultrasonic testing method and equipment therefor
JP2017020561A (en) * 2015-07-09 2017-01-26 Ntn株式会社 Manufacturing method of outside joint member of constant velocity universal joint, and ultrasonic scratch inspection method of weld part
CN107894460A (en) * 2017-12-25 2018-04-10 常州常宝精特钢管有限公司 A kind of body is oblique to hinder method of detection
CN108195944A (en) * 2017-12-25 2018-06-22 常州常宝精特钢管有限公司 A kind of oblique wound of tube body is popped one's head in and failure detector

Also Published As

Publication number Publication date
JPS5933226B2 (en) 1984-08-14

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