JPS56122651A - Continuous multicasting method for steel - Google Patents

Continuous multicasting method for steel

Info

Publication number
JPS56122651A
JPS56122651A JP2758780A JP2758780A JPS56122651A JP S56122651 A JPS56122651 A JP S56122651A JP 2758780 A JP2758780 A JP 2758780A JP 2758780 A JP2758780 A JP 2758780A JP S56122651 A JPS56122651 A JP S56122651A
Authority
JP
Japan
Prior art keywords
molten steel
tundish
steel
ladles
pouring
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
JP2758780A
Other languages
Japanese (ja)
Inventor
Akio Kuribayashi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2758780A priority Critical patent/JPS56122651A/en
Publication of JPS56122651A publication Critical patent/JPS56122651A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PURPOSE: To prevent the degradation in the quality of continuously cast ingots and the clogging of a tundish nozzle by adding the molten steel left in a ladle to the ladles after the next charge, and subjecting this to vacuum degassing treatment then pouring this molten steel, in pouring the molten steel in plural ladles successively into the same tundish at the continuous casting of steel.
CONSTITUTION: Molten metal is poured successively and continuously from plural ladles into the tundish used with a continuously casting device. At this time, the pouring is stopped by leaving 3W20% the molten steel in the pouring ladle to prevent molten slag from entering the tundish. The 3W20% residual molten steel is added to the molten steel of the next and subsequent ladles, and this molten steel is subjected to vacuum degassing treatment. Further, Al is added thereto and remove the Al2O3 as a nonmetallic compound in the molten steel and control the components thereof. The continuously cast ingot is a clean steel ingot without containing the Al2O3 as a nonmetallic compound and the tundish is prevented from being clogged by the Al2O3.
COPYRIGHT: (C)1981,JPO&Japio
JP2758780A 1980-03-05 1980-03-05 Continuous multicasting method for steel Pending JPS56122651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2758780A JPS56122651A (en) 1980-03-05 1980-03-05 Continuous multicasting method for steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2758780A JPS56122651A (en) 1980-03-05 1980-03-05 Continuous multicasting method for steel

Publications (1)

Publication Number Publication Date
JPS56122651A true JPS56122651A (en) 1981-09-26

Family

ID=12225077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2758780A Pending JPS56122651A (en) 1980-03-05 1980-03-05 Continuous multicasting method for steel

Country Status (1)

Country Link
JP (1) JPS56122651A (en)

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