JPS57106448A - Molding method of steel ingot - Google Patents

Molding method of steel ingot

Info

Publication number
JPS57106448A
JPS57106448A JP18131380A JP18131380A JPS57106448A JP S57106448 A JPS57106448 A JP S57106448A JP 18131380 A JP18131380 A JP 18131380A JP 18131380 A JP18131380 A JP 18131380A JP S57106448 A JPS57106448 A JP S57106448A
Authority
JP
Japan
Prior art keywords
mold
steel
steel ingot
solidification
molten steel
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
JP18131380A
Other languages
Japanese (ja)
Inventor
Masayuki Nakada
Kozo Yano
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP18131380A priority Critical patent/JPS57106448A/en
Publication of JPS57106448A publication Critical patent/JPS57106448A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PURPOSE: To prevent the generation of internal defects such as secondary pipes and V segregation in the axial center part of a steel ingot by setting conditions in such a way as to satisfy a specific equation in producing the steel ingot by teeming molten steel into a mold.
CONSTITUTION: In the case of casting a steel ingot, H, R, K are so set as to satisfy the specific equationIin accordance with a change in X and casting is carried out. Here, X: the thickness of the solidified phase from the side walls of the mold, H: the height of the molten steel teemed into the mold, R: the length 1/2 the inside diameter of the bottom part of the mold, K: the solidification rate ratio of the solidified phase from the molding board and the side wall side of the mold, β: (ρs-ρl)/ρl, where ρl: the density just prior to the solidification of the molten steel, ρs: the density right after the solidification of the steel.
COPYRIGHT: (C)1982,JPO&Japio
JP18131380A 1980-12-23 1980-12-23 Molding method of steel ingot Pending JPS57106448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18131380A JPS57106448A (en) 1980-12-23 1980-12-23 Molding method of steel ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18131380A JPS57106448A (en) 1980-12-23 1980-12-23 Molding method of steel ingot

Publications (1)

Publication Number Publication Date
JPS57106448A true JPS57106448A (en) 1982-07-02

Family

ID=16098489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18131380A Pending JPS57106448A (en) 1980-12-23 1980-12-23 Molding method of steel ingot

Country Status (1)

Country Link
JP (1) JPS57106448A (en)

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