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 ingotInfo
- 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
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
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) |
-
1980
- 1980-10-21 JP JP14706680A patent/JPS5770080A/en active Pending
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