JPS5515018A - Detection method of tissue anisotropy of rolled steel material - Google Patents
Detection method of tissue anisotropy of rolled steel materialInfo
- 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
Links
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5896247A (en) * | 1981-12-03 | 1983-06-08 | Hitachi Ltd | Detector for welded part |
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 |
JP4686648B1 (en) * | 2010-09-02 | 2011-05-25 | 株式会社日立製作所 | 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 |
-
1978
- 1978-07-18 JP JP8730678A patent/JPS5515018A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5896247A (en) * | 1981-12-03 | 1983-06-08 | Hitachi Ltd | Detector for welded part |
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 |
JP4686648B1 (en) * | 2010-09-02 | 2011-05-25 | 株式会社日立製作所 | Ultrasonic inspection method |
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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