JPS5725251A - Production of large sized steel ingot - Google Patents

Production of large sized steel ingot

Info

Publication number
JPS5725251A
JPS5725251A JP9892680A JP9892680A JPS5725251A JP S5725251 A JPS5725251 A JP S5725251A JP 9892680 A JP9892680 A JP 9892680A JP 9892680 A JP9892680 A JP 9892680A JP S5725251 A JPS5725251 A JP S5725251A
Authority
JP
Japan
Prior art keywords
solidification
steel ingot
mold
sized steel
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
JP9892680A
Other languages
Japanese (ja)
Inventor
Yasuo Sugitani
Masahiro Yoshihara
Michio Ohashi
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP9892680A priority Critical patent/JPS5725251A/en
Publication of JPS5725251A publication Critical patent/JPS5725251A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To produce a large-sized steel ingot having no internal defects with high performance by specifying the height of molten metal and the inclination of the solidification interface from the side faces of a mold in upward solidification of molen steel in the mold.
CONSTITUTION: The side walls 2 of a mold 1 are formed in such a way that the heat conductivity increases gradually from the upper bricks 3 thereof to lower bricks 8. Molten metal 12 is teemed so as not to allow its height to exceed 1,000mm, and the surface of the molten steel 12 is insulated with exothermic or heat insulating flux 13 so that the solidification is progressed from the bottom surface toward above. At this time, the solidification at the end of the side walls 2 of the steel ingot inclines the solidifcation interface by ≥25°C with respect to the perpendicular face as shown by 14, 15, 16 by the effect of heat conductivity difference. Then, the solidification interfaces assumes a shape approximate to horizontal, and the large-sized steel ingot having no ghost formation is obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP9892680A 1980-07-19 1980-07-19 Production of large sized steel ingot Pending JPS5725251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9892680A JPS5725251A (en) 1980-07-19 1980-07-19 Production of large sized steel ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9892680A JPS5725251A (en) 1980-07-19 1980-07-19 Production of large sized steel ingot

Publications (1)

Publication Number Publication Date
JPS5725251A true JPS5725251A (en) 1982-02-10

Family

ID=14232726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9892680A Pending JPS5725251A (en) 1980-07-19 1980-07-19 Production of large sized steel ingot

Country Status (1)

Country Link
JP (1) JPS5725251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016537202A (en) * 2014-01-17 2016-12-01 コリア インスティテュート オブ インダストリアル テクノロジーＫｏｒｅａ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Casting method and casting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016537202A (en) * 2014-01-17 2016-12-01 コリア インスティテュート オブ インダストリアル テクノロジーＫｏｒｅａ Ｉｎｓｔｉｔｕｔｅ Ｏｆ Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Casting method and casting apparatus

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