JPS54146686A - Method of testing steel plate as rolled using ultrasonic wave - Google Patents

Method of testing steel plate as rolled using ultrasonic wave

Info

Publication number
JPS54146686A
JPS54146686A JP5446778A JP5446778A JPS54146686A JP S54146686 A JPS54146686 A JP S54146686A JP 5446778 A JP5446778 A JP 5446778A JP 5446778 A JP5446778 A JP 5446778A JP S54146686 A JPS54146686 A JP S54146686A
Authority
JP
Japan
Prior art keywords
steel plate
width direction
detected
end detector
rolled
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
JP5446778A
Other languages
Japanese (ja)
Other versions
JPS6140940B2 (en
Inventor
Kazuo Miyagawa
Yukito Sasaki
Koji Kawamura
Shuichi Sato
Takashi Ninomiya
Toshio Namihana
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 JP5446778A priority Critical patent/JPS54146686A/en
Publication of JPS54146686A publication Critical patent/JPS54146686A/en
Publication of JPS6140940B2 publication Critical patent/JPS6140940B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To arrange measuring roll, end detector, ultrasonic tester and measuring roll in this order in the direction of trasferring a steel plate, and to detect internal defects of the steel plate during the transfer thereof after rolling up to about 700°C and simultaneously to measure the thickness of the plate.
CONSTITUTION: When a steel plate 1 is transferred at a high temperature state as rolled, the quantity of transfer is detected by measuring rolls 11 provided at the initial and ultimate positions. The passage of the proximal end of the central part in the width direction of the steel plate 1 is detected by a first end detector 12, and the passages of the proximal ends and the rear ends of respective parts in the width direction are detected by a second end detector 13. The positions on the steel plate where the plate thickness signal and flow detection signal of the steel plate are obtained are measured by first ultrasonic testers 14 provided in correspondence to respective detectors of the second end detector and a pair of second ultrasonic testers movable in the width direction of the steel plate by a servo mechanism, as distance in the width direction and longitudinal direction using the central part of the proximal end of the steel plate as reference point.
COPYRIGHT: (C)1979,JPO&Japio
JP5446778A 1978-05-10 1978-05-10 Method of testing steel plate as rolled using ultrasonic wave Granted JPS54146686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5446778A JPS54146686A (en) 1978-05-10 1978-05-10 Method of testing steel plate as rolled using ultrasonic wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5446778A JPS54146686A (en) 1978-05-10 1978-05-10 Method of testing steel plate as rolled using ultrasonic wave

Publications (2)

Publication Number Publication Date
JPS54146686A true JPS54146686A (en) 1979-11-16
JPS6140940B2 JPS6140940B2 (en) 1986-09-11

Family

ID=12971464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5446778A Granted JPS54146686A (en) 1978-05-10 1978-05-10 Method of testing steel plate as rolled using ultrasonic wave

Country Status (1)

Country Link
JP (1) JPS54146686A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017511A (en) * 1983-07-11 1985-01-29 Agency Of Ind Science & Technol Edge tracking device
JPH0383806U (en) * 1989-12-15 1991-08-26
JP2011196782A (en) * 2010-03-18 2011-10-06 Toshiba Corp Sheet processing device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0230982Y2 (en) * 1985-05-17 1990-08-21
JPH0316499Y2 (en) * 1987-04-01 1991-04-09
JP3747664B2 (en) * 1998-12-09 2006-02-22 Ｊｆｅスチール株式会社 Steel plate inspection method, manufacturing method, and cold rolled steel plate manufacturing equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017511A (en) * 1983-07-11 1985-01-29 Agency Of Ind Science & Technol Edge tracking device
JPH0383806U (en) * 1989-12-15 1991-08-26
JP2011196782A (en) * 2010-03-18 2011-10-06 Toshiba Corp Sheet processing device

Also Published As

Publication number Publication date
JPS6140940B2 (en) 1986-09-11

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