JPS55128356A - Decreasing method for inclusion in molten steel at continuous cast pouring time - Google Patents

Decreasing method for inclusion in molten steel at continuous cast pouring time

Info

Publication number
JPS55128356A
JPS55128356A JP3534079A JP3534079A JPS55128356A JP S55128356 A JPS55128356 A JP S55128356A JP 3534079 A JP3534079 A JP 3534079A JP 3534079 A JP3534079 A JP 3534079A JP S55128356 A JPS55128356 A JP S55128356A
Authority
JP
Japan
Prior art keywords
molten steel
inclusion
nozzle
vomitting
area
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
JP3534079A
Other languages
Japanese (ja)
Inventor
Shinichi Tsuji
Kenzo Oosugi
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP3534079A priority Critical patent/JPS55128356A/en
Publication of JPS55128356A publication Critical patent/JPS55128356A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/118—Refining the metal by circulating the metal under, over or around weirs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE: To enable to be obtained pure molten steel containing a small amount of inclusion, by pouring molten metal in the ladle in nearly square pouring part area in the tundish from the nozzle having plural vomitting holes, provided at the bottom of the ladle and generating revolving turbulence of the molten steel and also, floating and cohering the inclusion in the molten steel.
CONSTITUTION: Molten steel in the ladle 2 is poured in the pouring part area 5 partitioned by the dam 4 in the tundish 3 through the dipping nozzle 1 having plural vomitting holes. Since the number of vomitting holes of the nozzle 1 is 2 or 4 vomitting flow of the molten steel collides or is reflected against the dam 4 or the tundish side wall 9. Next, revolving turbulence is generated in the area 5 by generated reflection flow and inclusion in the molten steel are cohered at the center of the revolving turbulence by centrifugal force and then, are floated on the surface of the molten steel. Then, the molten steel containing a small amount of impurities, is transferred from the area 5 to the nozzle part area 7 through the connecting hole 8 of the lower part of the dam 4 and is supplied in continuous casting mold from the nozzle 6.
COPYRIGHT: (C)1980,JPO&Japio
JP3534079A 1979-03-26 1979-03-26 Decreasing method for inclusion in molten steel at continuous cast pouring time Pending JPS55128356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3534079A JPS55128356A (en) 1979-03-26 1979-03-26 Decreasing method for inclusion in molten steel at continuous cast pouring time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3534079A JPS55128356A (en) 1979-03-26 1979-03-26 Decreasing method for inclusion in molten steel at continuous cast pouring time

Publications (1)

Publication Number Publication Date
JPS55128356A true JPS55128356A (en) 1980-10-04

Family

ID=12439117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3534079A Pending JPS55128356A (en) 1979-03-26 1979-03-26 Decreasing method for inclusion in molten steel at continuous cast pouring time

Country Status (1)

Country Link
JP (1) JPS55128356A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327348A (en) * 1991-04-30 1992-11-16 Kawasaki Steel Corp Tundish having coil device for generating shifting magnetic field
CN108348996A (en) * 2015-11-02 2018-07-31 株式会社Posco Steel treatment equipment and steel treatment method
CN111448012A (en) * 2017-12-11 2020-07-24 株式会社Posco Molten material processing apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327348A (en) * 1991-04-30 1992-11-16 Kawasaki Steel Corp Tundish having coil device for generating shifting magnetic field
CN108348996A (en) * 2015-11-02 2018-07-31 株式会社Posco Steel treatment equipment and steel treatment method
CN108348996B (en) * 2015-11-02 2020-06-12 株式会社Posco Molten steel treatment apparatus and molten steel treatment method
CN111448012A (en) * 2017-12-11 2020-07-24 株式会社Posco Molten material processing apparatus

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