JPS5515018A - Detection method of tissue anisotropy of rolled steel material - Google Patents

Detection method of tissue anisotropy of rolled steel material

Info

Publication number
JPS5515018A
JPS5515018A JP8730678A JP8730678A JPS5515018A JP S5515018 A JPS5515018 A JP S5515018A JP 8730678 A JP8730678 A JP 8730678A JP 8730678 A JP8730678 A JP 8730678A JP S5515018 A JPS5515018 A JP S5515018A
Authority
JP
Japan
Prior art keywords
transversal
wave
steel material
prober
rolled steel
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
JP8730678A
Other languages
Japanese (ja)
Other versions
JPS6145773B2 (en
Inventor
Kazuo Miyagawa
Yukito Sasaki
Koji Kawamura
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 JP8730678A priority Critical patent/JPS5515018A/en
Publication of JPS5515018A publication Critical patent/JPS5515018A/en
Publication of JPS6145773B2 publication Critical patent/JPS6145773B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To detect the degree of tissue anisotropy of a rolled steel material and the rolled direction without destruction by transmitting and receiving transversal wave- mode ultrasonic waves in the thickness direction of the tested material by an electromagnetic ultrasonic wave prober for transversal wave.
CONSTITUTION: Transversal-mode ultrasonic waves are trasmitted or received in the thickness direction of steel material 1 by electromagnetic ultrasonic prober 5 for transversal wave. The receiving time of the bottom face echo dependent upon the transversal ultrasonic wave of two vibration components orthogonal to each other, namely, the sound velocity of the transversal ultarsonic wave is measured by gate circuits 10, 11 and 11' and counters 13 and 13', and the ratio of two bottom face echo heights is obtained by divider 14, and the degree of issue anisotropy of rolled steel material 1 and the rolled direction are detected from the direction of prober 5 where this ratio become maximum or minimum.
COPYRIGHT: (C)1980,JPO&Japio
JP8730678A 1978-07-18 1978-07-18 Detection method of tissue anisotropy of rolled steel material Granted JPS5515018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8730678A JPS5515018A (en) 1978-07-18 1978-07-18 Detection method of tissue anisotropy of rolled steel material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8730678A JPS5515018A (en) 1978-07-18 1978-07-18 Detection method of tissue anisotropy of rolled steel material

Publications (2)

Publication Number Publication Date
JPS5515018A true JPS5515018A (en) 1980-02-01
JPS6145773B2 JPS6145773B2 (en) 1986-10-09

Family

ID=13911135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8730678A Granted JPS5515018A (en) 1978-07-18 1978-07-18 Detection method of tissue anisotropy of rolled steel material

Country Status (1)

Country Link
JP (1) JPS5515018A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896247A (en) * 1981-12-03 1983-06-08 Hitachi Ltd Weld detection device
JPS58180923A (en) * 1982-04-16 1983-10-22 Nippon Steel Corp Method for judging finishing temperature in rolling of steel material
JPS61258163A (en) * 1985-05-10 1986-11-15 Sumitomo Metal Ind Ltd Anisotropy measuring instrument
FR2831085A1 (en) * 2001-10-24 2003-04-25 Usinor Optimization of scrapping in steel strip by evaluating the anisotropy coefficient along the strip and scrapping those portions where this coefficient is below a predetermined threshold
JP2012053027A (en) * 2010-11-30 2012-03-15 Hitachi Ltd Ultrasonic inspection method
JP2012053026A (en) * 2010-11-30 2012-03-15 Hitachi Ltd Ultrasonic inspection method
JP2012052963A (en) * 2010-09-02 2012-03-15 Hitachi Ltd Ultrasonic inspection method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896247A (en) * 1981-12-03 1983-06-08 Hitachi Ltd Weld detection device
JPS58180923A (en) * 1982-04-16 1983-10-22 Nippon Steel Corp Method for judging finishing temperature in rolling of steel material
JPS61258163A (en) * 1985-05-10 1986-11-15 Sumitomo Metal Ind Ltd Anisotropy measuring instrument
FR2831085A1 (en) * 2001-10-24 2003-04-25 Usinor Optimization of scrapping in steel strip by evaluating the anisotropy coefficient along the strip and scrapping those portions where this coefficient is below a predetermined threshold
JP2012052963A (en) * 2010-09-02 2012-03-15 Hitachi Ltd Ultrasonic inspection method
JP2012053027A (en) * 2010-11-30 2012-03-15 Hitachi Ltd Ultrasonic inspection method
JP2012053026A (en) * 2010-11-30 2012-03-15 Hitachi Ltd Ultrasonic inspection method

Also Published As

Publication number Publication date
JPS6145773B2 (en) 1986-10-09

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