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JPS6448651A - Method for assuming crater end - Google Patents

Method for assuming crater end

Info

Publication number
JPS6448651A
JPS6448651A JP20253187A JP20253187A JPS6448651A JP S6448651 A JPS6448651 A JP S6448651A JP 20253187 A JP20253187 A JP 20253187A JP 20253187 A JP20253187 A JP 20253187A JP S6448651 A JPS6448651 A JP S6448651A
Authority
JP
Japan
Prior art keywords
cast slab
electromagnetic ultrasonic
found
temp
crater end
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.)
Pending
Application number
JP20253187A
Other languages
Japanese (ja)
Inventor
Atsuhiro Goto
Mitsuo Yoneda
Yuichi Taniguchi
Kazuhiko Nagahashi
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 JP20253187A priority Critical patent/JPS6448651A/en
Publication of JPS6448651A publication Critical patent/JPS6448651A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PURPOSE:To assume crater end by finding passing time from completion of solidification to setting position of electromagnetic ultrasonic generating and receiving unit from average temp. for thickness direction of a cast slab found by using the electromagnetic ultrasonic wave and surface temp., etc., found by actual measurement or calculation. CONSTITUTION:The average temp. Ta for the thickness direction of the cast slab is found by the electromagnetic ultrasonic generating and receiving unit 2 arranged at end part of a casting method behind position, where at least the cast slab is solidified to the center part. Further, by finding the passing time from the completion of the solidification to the setting position of the electromagnetic ultrasonic unit with the equation from the surface temp. Ts, etc., at the above position, position of the crater end 8 is assumed. With the assumed value obtd. by this method, quality of the cast slab can be uniformized.
JP20253187A 1987-08-13 1987-08-13 Method for assuming crater end Pending JPS6448651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20253187A JPS6448651A (en) 1987-08-13 1987-08-13 Method for assuming crater end

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20253187A JPS6448651A (en) 1987-08-13 1987-08-13 Method for assuming crater end

Publications (1)

Publication Number Publication Date
JPS6448651A true JPS6448651A (en) 1989-02-23

Family

ID=16459039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20253187A Pending JPS6448651A (en) 1987-08-13 1987-08-13 Method for assuming crater end

Country Status (1)

Country Link
JP (1) JPS6448651A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004351481A (en) * 2003-05-29 2004-12-16 Jfe Steel Kk Method for continuously casting steel
JP2005118804A (en) * 2003-10-15 2005-05-12 Jfe Steel Kk Method for detecting fully solidified position of continuously-cast bloom
JP2009178721A (en) * 2008-01-29 2009-08-13 Sumitomo Metal Ind Ltd Continuous casting method for cast bloom
JP2013126669A (en) * 2011-12-16 2013-06-27 Jfe Steel Corp Method and device for estimating temperature of slab
JP2014036997A (en) * 2012-08-20 2014-02-27 Jfe Steel Corp Method for evaluating quality of continuous cast slab
JP2019214067A (en) * 2018-06-13 2019-12-19 日本製鉄株式会社 Method and apparatus for detecting cast-slab solidification completion position

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004351481A (en) * 2003-05-29 2004-12-16 Jfe Steel Kk Method for continuously casting steel
JP2005118804A (en) * 2003-10-15 2005-05-12 Jfe Steel Kk Method for detecting fully solidified position of continuously-cast bloom
JP2009178721A (en) * 2008-01-29 2009-08-13 Sumitomo Metal Ind Ltd Continuous casting method for cast bloom
JP2013126669A (en) * 2011-12-16 2013-06-27 Jfe Steel Corp Method and device for estimating temperature of slab
JP2014036997A (en) * 2012-08-20 2014-02-27 Jfe Steel Corp Method for evaluating quality of continuous cast slab
JP2019214067A (en) * 2018-06-13 2019-12-19 日本製鉄株式会社 Method and apparatus for detecting cast-slab solidification completion position

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