JPS5770080A - Method for preventing sulfur segregation in heat part of longitudinally short steel ingot - Google Patents

Method for preventing sulfur segregation in heat part of longitudinally short steel ingot

Info

Publication number
JPS5770080A
JPS5770080A JP14706680A JP14706680A JPS5770080A JP S5770080 A JPS5770080 A JP S5770080A JP 14706680 A JP14706680 A JP 14706680A JP 14706680 A JP14706680 A JP 14706680A JP S5770080 A JPS5770080 A JP S5770080A
Authority
JP
Japan
Prior art keywords
molten steel
mold
insulating material
heat insulating
steel ingot
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
JP14706680A
Other languages
Japanese (ja)
Inventor
Setsuo Okamoto
Yujo Marukawa
Morio Kawasaki
Takatoshi Hamana
Hiroyuki Ichihashi
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 JP14706680A priority Critical patent/JPS5770080A/en
Publication of JPS5770080A publication Critical patent/JPS5770080A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To perform titled prevention and improve internal quality and yield by charging a flux for desulfurization on a molten steel surface then covering the top surface thereof with a heat insulating material.
CONSTITUTION: A molding flask 2 is installed on a molding board 1, and the entire part of the inside wall surface of the mold 2 is coated with a heat insulating material 3 of prescribed thickness. Molten steel 6 is teemed into this mold 2, and the unidirectional solidification from the bottom part of the mold is accelerated. At the end period of the casting or at the completion of the casting, a flux 5 for desulfurization is charged onto the top surface of the molten steel 6, and a heat insulating material 4 is placed on the molten steel surface after this to cover said surface, whereby the segregation of S produced in the head part of the molten steel in the late period of solidification is prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP14706680A 1980-10-21 1980-10-21 Method for preventing sulfur segregation in heat part of longitudinally short steel ingot Pending JPS5770080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14706680A JPS5770080A (en) 1980-10-21 1980-10-21 Method for preventing sulfur segregation in heat part of longitudinally short steel ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14706680A JPS5770080A (en) 1980-10-21 1980-10-21 Method for preventing sulfur segregation in heat part of longitudinally short steel ingot

Publications (1)

Publication Number Publication Date
JPS5770080A true JPS5770080A (en) 1982-04-30

Family

ID=15421705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14706680A Pending JPS5770080A (en) 1980-10-21 1980-10-21 Method for preventing sulfur segregation in heat part of longitudinally short steel ingot

Country Status (1)

Country Link
JP (1) JPS5770080A (en)

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