JPS57118846A - Production of continuously cast ingot - Google Patents

Production of continuously cast ingot

Info

Publication number
JPS57118846A
JPS57118846A JP411881A JP411881A JPS57118846A JP S57118846 A JPS57118846 A JP S57118846A JP 411881 A JP411881 A JP 411881A JP 411881 A JP411881 A JP 411881A JP S57118846 A JPS57118846 A JP S57118846A
Authority
JP
Japan
Prior art keywords
production
steel
ingot
solal
inclusions
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
JP411881A
Other languages
Japanese (ja)
Inventor
Tetsuo Ohashi
Eiichi Takeuchi
Hiromu Fujii
Kazumasa Yamazaki
Toshiaki Ohira
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 JP411881A priority Critical patent/JPS57118846A/en
Publication of JPS57118846A publication Critical patent/JPS57118846A/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
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

Landscapes

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

Abstract

PURPOSE:To obtain an ingot for sheets of superior elongation and flangeability in production of an ingot for cold-rolled sheets by decreasing the Si and solAl in steel and electromagnetically stirring the molten steel near the surface thereof in a mold. CONSTITUTION:Molten steel of <=0.12% C, <=0.01% Si, 0.06-0.50% Mn, <=0.020% P, S, unavoidable impurities, <=0.003% solAl, and 0.0050-0.0205% free oxygen is continuously cast. Here, the inclusions in the steel are made into a spherical shape of <= serveral mum diameter in the composition contg. a trace atm. of Al2O3 in an MnO-SiO2 type base by the limitation of Si and solAl. Thereby, the inclusions are made harmless to flange cracking and the steel of good stretchability wherein said inclusions are dispersed is obtained. However, this leads to a decrese in deoxidizing power, an increase in the concn. of free oxygen, production of air bubbles consisting essentially of CO on the surface of the ingot and formation of surface flaws by rolling. Thereupon, the solidification interface of the surface of the molten steel 4 in the mold is reflowed in an arrow direction by a linear motor 3 in the long side mold, whereby the production of pinhole nuclei is suppressed.
JP411881A 1981-01-14 1981-01-14 Production of continuously cast ingot Pending JPS57118846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP411881A JPS57118846A (en) 1981-01-14 1981-01-14 Production of continuously cast ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP411881A JPS57118846A (en) 1981-01-14 1981-01-14 Production of continuously cast ingot

Publications (1)

Publication Number Publication Date
JPS57118846A true JPS57118846A (en) 1982-07-23

Family

ID=11575865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP411881A Pending JPS57118846A (en) 1981-01-14 1981-01-14 Production of continuously cast ingot

Country Status (1)

Country Link
JP (1) JPS57118846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003105431A (en) * 2001-09-27 2003-04-09 Nippon Steel Corp Method for preparing steel plate for thin sheet and its cast slab

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156647A (en) * 1979-05-28 1980-12-05 Nippon Steel Corp Continuous casting of slab for cold rolled steel plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156647A (en) * 1979-05-28 1980-12-05 Nippon Steel Corp Continuous casting of slab for cold rolled steel plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003105431A (en) * 2001-09-27 2003-04-09 Nippon Steel Corp Method for preparing steel plate for thin sheet and its cast slab

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