JPS56219A - Manufacture of aluminum deoxidized killed steel to prevent rise of si content of molten steel - Google Patents
Manufacture of aluminum deoxidized killed steel to prevent rise of si content of molten steelInfo
- Publication number
- JPS56219A JPS56219A JP7297079A JP7297079A JPS56219A JP S56219 A JPS56219 A JP S56219A JP 7297079 A JP7297079 A JP 7297079A JP 7297079 A JP7297079 A JP 7297079A JP S56219 A JPS56219 A JP S56219A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- aluminum
- molten steel
- deoxidization
- molten
- 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 reduce the amount of Si contained as much as possible by a procedure in which primary deoxidization is made by aluminum in a refining furnace, the steel so treated is discharged to a ladle lined with a refractory material containing less amounts of SiO2, and then the steel is further deoxidized secondarily by a aluminum.
CONSTITUTION: In the manufacture of a low-silicon aluminum killed steel containing 0.010% or less Si, e.g., galvanized steel plate, etc., the primary deoxidization is first made by adding aluminum in a theoretical amount enough to deoxidize oxygen dissolved in the molten steel in a steel-making furnace, and then the molten steel is discharged to a ladle lined with a refractory material containing a very small amount of SiO2. In this case, the intermixture of molten slag into the molten steel is suppressed to a great extent. Because the molten steel in the ladle is secondarily oxidized when discharged, the molten steel is further mixed with a small amount of aluminum with sufficient stirring for deoxidization. Thus, a low-silicon aluminum killed steel containing 0.010% or less Si can be economically manufactured with less amounts of aluminum for deoxidization and without reducing SiO2 by excessive alumimum.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297079A JPS56219A (en) | 1979-06-12 | 1979-06-12 | Manufacture of aluminum deoxidized killed steel to prevent rise of si content of molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7297079A JPS56219A (en) | 1979-06-12 | 1979-06-12 | Manufacture of aluminum deoxidized killed steel to prevent rise of si content of molten steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56219A true JPS56219A (en) | 1981-01-06 |
Family
ID=13504743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7297079A Pending JPS56219A (en) | 1979-06-12 | 1979-06-12 | Manufacture of aluminum deoxidized killed steel to prevent rise of si content of molten steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915533U (en) * | 1982-07-20 | 1984-01-30 | 大日本印刷株式会社 | packaging material |
-
1979
- 1979-06-12 JP JP7297079A patent/JPS56219A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5915533U (en) * | 1982-07-20 | 1984-01-30 | 大日本印刷株式会社 | packaging material |
| JPS633807Y2 (en) * | 1982-07-20 | 1988-01-29 |
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