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JPS564360A - Pulling speed controlling method of continuous casting machine - Google Patents

Pulling speed controlling method of continuous casting machine

Info

Publication number
JPS564360A
JPS564360A JP7679379A JP7679379A JPS564360A JP S564360 A JPS564360 A JP S564360A JP 7679379 A JP7679379 A JP 7679379A JP 7679379 A JP7679379 A JP 7679379A JP S564360 A JPS564360 A JP S564360A
Authority
JP
Japan
Prior art keywords
metal level
molten metal
pulling speed
mold part
speed controlling
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
JP7679379A
Other languages
Japanese (ja)
Inventor
Haruo Kinoshita
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7679379A priority Critical patent/JPS564360A/en
Publication of JPS564360A publication Critical patent/JPS564360A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PURPOSE: To let the pulling speed controlling which permits stable casting be done by removing the noise components of a detector not only when molten metal level fluctuations are small but also when they are large at the time of performing the captioned controlling through detection of the molten metal level height in the mold part.
CONSTITUTION: Molten steel 5 is poured and cooled in a mold part 3 from the bottom end of a tundish 4, after which it is formed to a slab 6 and is continuously pulled by pinch rolls 9 which are driven by a motor 11, at which time a casting ring 1 is also synchronously revolved by a motor 10. In this case, the molten metal level of the molten steel poured into the mold part is detected by a radiation type detector 8 and this is compared with a reference value. Only when the molten metal level changes suddenly and its fluctuation amount exceeds the reference value, a molten metal level deviation signal is added to the pulling speed command by way of a main signal line 14 by a blind zone circuit 15, whereby the rapid pulling speed controlling may be accomplished. When the molten metal level fluctuations are small, a time constant circuit 17 for primary delay applies the molten metal level signal to the pulling speed command through the auxiliary signal line 16 excluding the noise signal.
COPYRIGHT: (C)1981,JPO&Japio
JP7679379A 1979-06-20 1979-06-20 Pulling speed controlling method of continuous casting machine Pending JPS564360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7679379A JPS564360A (en) 1979-06-20 1979-06-20 Pulling speed controlling method of continuous casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7679379A JPS564360A (en) 1979-06-20 1979-06-20 Pulling speed controlling method of continuous casting machine

Publications (1)

Publication Number Publication Date
JPS564360A true JPS564360A (en) 1981-01-17

Family

ID=13615500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7679379A Pending JPS564360A (en) 1979-06-20 1979-06-20 Pulling speed controlling method of continuous casting machine

Country Status (1)

Country Link
JP (1) JPS564360A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199695A (en) * 1982-04-28 1983-11-21 Hitachi Plant Eng & Constr Co Ltd Temporary fixing jig for temporary welding
CN114042881A (en) * 2021-11-19 2022-02-15 阳春新钢铁有限责任公司 Practical casting machine pulling speed calibration method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49895U (en) * 1972-04-04 1974-01-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49895U (en) * 1972-04-04 1974-01-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199695A (en) * 1982-04-28 1983-11-21 Hitachi Plant Eng & Constr Co Ltd Temporary fixing jig for temporary welding
JPS6218279B2 (en) * 1982-04-28 1987-04-22 Hitachi Plant Eng & Constr Co
CN114042881A (en) * 2021-11-19 2022-02-15 阳春新钢铁有限责任公司 Practical casting machine pulling speed calibration method

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