JPS5527443A - Production by continuous casting of rimmed and semikilled steel - Google Patents

Production by continuous casting of rimmed and semikilled steel

Info

Publication number
JPS5527443A
JPS5527443A JP9997278A JP9997278A JPS5527443A JP S5527443 A JPS5527443 A JP S5527443A JP 9997278 A JP9997278 A JP 9997278A JP 9997278 A JP9997278 A JP 9997278A JP S5527443 A JPS5527443 A JP S5527443A
Authority
JP
Japan
Prior art keywords
casting
flow
casting mold
rimmed
steels
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
JP9997278A
Other languages
Japanese (ja)
Inventor
Tetsuo Ohashi
Osamu Kitamura
Hiromu Fujii
Seizo Mineyuki
Eiichi Takeuchi
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP9997278A priority Critical patent/JPS5527443A/en
Publication of JPS5527443A publication Critical patent/JPS5527443A/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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/122—Accessories for subsequent treating or working cast stock in situ using magnetic fields

Landscapes

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

Abstract

PURPOSE:To prevent the production of pinholes and obtain the slab of the captioned steels of good surface quality by giving the specified flow unification in the specific direction to the molten steel surface of casting mold by an electromagnetic stirrer in producing rimmed and semikilled steels through continuous casting. CONSTITUTION:In continuously casting the rimmed or semikilled steel of the specified components with a casting mold 1, an electromagnetic stirrer 3 is provided in the lower position of the casting mold 1 to give flow unification of 0.1 to 0.5m/sec in one direction perpendicular to the casting direction. As a result of experiment, the slab of the captioned steels of good surface quality free from pinholes, etc. occuring in the evolution of gas (CO+CO2) from the separately mentioned reasons are obtained. Namely, the velocities of flow of molten steel unified flow in order to make the element concentrations of (C, O) at the entire circumference of the slab at the freezing start point less than bubble nuclear producing limit through the abovementioned flow unification without requiring powerful stirring as with conventional methods were empirically determined. The upper limit 0.5m/sec is the point where inclusion of powder in the casting mold occurs.
JP9997278A 1978-08-18 1978-08-18 Production by continuous casting of rimmed and semikilled steel Pending JPS5527443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9997278A JPS5527443A (en) 1978-08-18 1978-08-18 Production by continuous casting of rimmed and semikilled steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9997278A JPS5527443A (en) 1978-08-18 1978-08-18 Production by continuous casting of rimmed and semikilled steel

Publications (1)

Publication Number Publication Date
JPS5527443A true JPS5527443A (en) 1980-02-27

Family

ID=14261571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9997278A Pending JPS5527443A (en) 1978-08-18 1978-08-18 Production by continuous casting of rimmed and semikilled steel

Country Status (1)

Country Link
JP (1) JPS5527443A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142751A (en) * 1981-02-27 1982-09-03 Nippon Steel Corp Production of bloom and billet of weak disoxidized steel having sound surface layer part by continuous casting machine
JPS57211708A (en) * 1981-06-24 1982-12-25 Toshiba Corp Rotary transformer
JPS5877755A (en) * 1981-10-30 1983-05-11 Nippon Kokan Kk <Nkk> Production of continuously cast ingot having sound surface and internal quality
JPS58164325U (en) * 1982-04-27 1983-11-01 日本電気株式会社 Temperature compensated crystal resonator
JPS59101262A (en) * 1982-12-02 1984-06-11 Kobe Steel Ltd Electromagnetically stirring method of molten steel in continuous casting
JPS59101263A (en) * 1982-12-02 1984-06-11 Kobe Steel Ltd Electromagnetically stirring method of molten steel in continuous casting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142751A (en) * 1981-02-27 1982-09-03 Nippon Steel Corp Production of bloom and billet of weak disoxidized steel having sound surface layer part by continuous casting machine
JPS6313786B2 (en) * 1981-02-27 1988-03-28 Nippon Steel Corp
JPS57211708A (en) * 1981-06-24 1982-12-25 Toshiba Corp Rotary transformer
JPS5877755A (en) * 1981-10-30 1983-05-11 Nippon Kokan Kk <Nkk> Production of continuously cast ingot having sound surface and internal quality
JPS58164325U (en) * 1982-04-27 1983-11-01 日本電気株式会社 Temperature compensated crystal resonator
JPS59101262A (en) * 1982-12-02 1984-06-11 Kobe Steel Ltd Electromagnetically stirring method of molten steel in continuous casting
JPS59101263A (en) * 1982-12-02 1984-06-11 Kobe Steel Ltd Electromagnetically stirring method of molten steel in continuous casting

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