JPS566763A - Continuous casting method of nitrogen-containing steel - Google Patents

Continuous casting method of nitrogen-containing steel

Info

Publication number
JPS566763A
JPS566763A JP8315679A JP8315679A JPS566763A JP S566763 A JPS566763 A JP S566763A JP 8315679 A JP8315679 A JP 8315679A JP 8315679 A JP8315679 A JP 8315679A JP S566763 A JPS566763 A JP S566763A
Authority
JP
Japan
Prior art keywords
nitrogen
steel
gas
vacuum degassing
continuous casting
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
JP8315679A
Other languages
Japanese (ja)
Other versions
JPS5756425B2 (en
Inventor
Toshiyasu Onishi
Koichi Ebato
Wataru Takagi
Yasuo Suzuki
Hideki Yokoyama
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP8315679A priority Critical patent/JPS566763A/en
Publication of JPS566763A publication Critical patent/JPS566763A/en
Publication of JPS5756425B2 publication Critical patent/JPS5756425B2/ja
Granted 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
    • B22D11/106—Shielding the molten jet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE:To accurately restore the amount of nitrogen in steel having been decreased in vacuum degassing process by regulating the nitrogen partial pressure in non-oxidizing atmosphere gas, in continuously casting the ntirogen-contg. refined steel having undergone vacuum-degassing treatment. CONSTITUTION:A sealing box 2 is disposed between a ladle 1 and a tundish 5, and non-oxidizing atmosphere gas is introduced through a conduit 8. The ladle influent flow 3 of the nitrogen-contg. refined steel having undergone vacuum degassing treatment forms vortexes in an ingate and enters a mold 7 by way of a submerged nozzle 6. At this time, it is equally well to shield the tundish 5 and the mold 7 by gas simulatneously or in place of this. Nitrogen is added in the atomsphere gas to be introduced at the time of performing this continuous casting or the nitrogen partial pressure in the atmosphere is regulated by using the atmosphere gas mainly composed of nitrogen in the steel owing ot the vacuum degassing process to assure the content of nitrogen.
JP8315679A 1979-06-29 1979-06-29 Continuous casting method of nitrogen-containing steel Granted JPS566763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8315679A JPS566763A (en) 1979-06-29 1979-06-29 Continuous casting method of nitrogen-containing steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8315679A JPS566763A (en) 1979-06-29 1979-06-29 Continuous casting method of nitrogen-containing steel

Publications (2)

Publication Number Publication Date
JPS566763A true JPS566763A (en) 1981-01-23
JPS5756425B2 JPS5756425B2 (en) 1982-11-30

Family

ID=13794373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8315679A Granted JPS566763A (en) 1979-06-29 1979-06-29 Continuous casting method of nitrogen-containing steel

Country Status (1)

Country Link
JP (1) JPS566763A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221642A (en) * 1982-06-16 1983-12-23 Kawasaki Steel Corp Method for adding nitrogen to molten steel
WO2000007758A1 (en) * 1998-08-04 2000-02-17 Vladimir Nikolaevich Nazarov Device for adjusting the flow-rate of liquid metal
WO2011087392A1 (en) * 2010-01-18 2011-07-21 Kobzar-Dernovskiy Vladimir Evgenjevich « gas-sleeve » device for refining, degassing and casting metal from a ladle without stopper or shutter
CN112676544A (en) * 2020-12-11 2021-04-20 北京首钢股份有限公司 Nitrogen increasing method in high-nitrogen steel continuous casting process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110535U (en) * 1983-09-16 1984-07-25 株式会社クボタ long culm crop reaper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58221642A (en) * 1982-06-16 1983-12-23 Kawasaki Steel Corp Method for adding nitrogen to molten steel
WO2000007758A1 (en) * 1998-08-04 2000-02-17 Vladimir Nikolaevich Nazarov Device for adjusting the flow-rate of liquid metal
WO2011087392A1 (en) * 2010-01-18 2011-07-21 Kobzar-Dernovskiy Vladimir Evgenjevich « gas-sleeve » device for refining, degassing and casting metal from a ladle without stopper or shutter
CN112676544A (en) * 2020-12-11 2021-04-20 北京首钢股份有限公司 Nitrogen increasing method in high-nitrogen steel continuous casting process

Also Published As

Publication number Publication date
JPS5756425B2 (en) 1982-11-30

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