JPS56168940A - Continuous casting method from undeoxidized molten steel - Google Patents

Continuous casting method from undeoxidized molten steel

Info

Publication number
JPS56168940A
JPS56168940A JP7101080A JP7101080A JPS56168940A JP S56168940 A JPS56168940 A JP S56168940A JP 7101080 A JP7101080 A JP 7101080A JP 7101080 A JP7101080 A JP 7101080A JP S56168940 A JPS56168940 A JP S56168940A
Authority
JP
Japan
Prior art keywords
molten steel
tundish
mold
nozzle
cradle
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
JP7101080A
Other languages
Japanese (ja)
Inventor
Noboru Hirota
Saburo Shimizu
Naonori Moriya
Masanori Tawara
Jun Kadoi
Hirofumi Furukawa
Yasuo Fujikawa
Koichi Tamura
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.)
Mitsubishi Heavy Industries Ltd
Nippon Steel Nisshin Co Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Nisshin Steel Co 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 Mitsubishi Heavy Industries Ltd, Nisshin Steel Co Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP7101080A priority Critical patent/JPS56168940A/en
Publication of JPS56168940A publication Critical patent/JPS56168940A/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
    • B22D11/113—Treating the molten metal by vacuum treating

Landscapes

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

Abstract

PURPOSE:To realize the continuous casting method for undeoxidized molten steel and manufacture a sound cast ingot with no growth of pinholes, by conducting the vacuum degassing operation of the molten steel in a tundish in addition to that of the molten steel in a cradle. CONSTITUTION:If the pressure in a vaccuum vessel 4 is reduced by driving a gas discharging device, the molten steel stored in the tundish 2 is sucked up into the vacuum vessel 4 through a suction pipe 6 and then discharged to a tundish nozzle 8 through a discharging pipe 7. The tundish nozzle 8 is equipped with an immerged nozzle 9 immerged in the molten steel stagnated in a mold 1, through which the molten steel is continuously charged into the mold 1. Thus, the molten steel in the tundish 2 is continuously subjected to the vacuum degassing operation before being charged into the mold 1. The molten steel 10 stored in the cradle 3 for charging to the tundish 2 is used after the vacuum degassing operation and when it is discharged from the cradle 3 to the tundish 2, a sealed nozzle 11 is applied and an aritificial molten slag layer 12 is also constituted in the mold 1.
JP7101080A 1980-05-28 1980-05-28 Continuous casting method from undeoxidized molten steel Pending JPS56168940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7101080A JPS56168940A (en) 1980-05-28 1980-05-28 Continuous casting method from undeoxidized molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7101080A JPS56168940A (en) 1980-05-28 1980-05-28 Continuous casting method from undeoxidized molten steel

Publications (1)

Publication Number Publication Date
JPS56168940A true JPS56168940A (en) 1981-12-25

Family

ID=13448095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7101080A Pending JPS56168940A (en) 1980-05-28 1980-05-28 Continuous casting method from undeoxidized molten steel

Country Status (1)

Country Link
JP (1) JPS56168940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226143A (en) * 1985-04-01 1986-10-08 Nippon Kokan Kk <Nkk> Rh degassing device
US5056692A (en) * 1988-10-13 1991-10-15 The Electricity Counsil And Chamberlin & Hill Plc Dispensing apparatus for molten metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226143A (en) * 1985-04-01 1986-10-08 Nippon Kokan Kk <Nkk> Rh degassing device
US5056692A (en) * 1988-10-13 1991-10-15 The Electricity Counsil And Chamberlin & Hill Plc Dispensing apparatus for molten metal

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