JPS5754216A - Production of low solved aluminum steel - Google Patents
Production of low solved aluminum steelInfo
- Publication number
- JPS5754216A JPS5754216A JP12710380A JP12710380A JPS5754216A JP S5754216 A JPS5754216 A JP S5754216A JP 12710380 A JP12710380 A JP 12710380A JP 12710380 A JP12710380 A JP 12710380A JP S5754216 A JPS5754216 A JP S5754216A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- laddle
- slag
- amount
- 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.)
- Granted
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE: To obtain a low sol-Al steel with Si≤0.03% so l-Al≤0.01% by a method wherein the slag unavoidably introduced into a molten steel at the time of tapping the molten steel into a laddle is removed, and while agitating the molten steel by blowing an inert gas into the molten steel, Al is added to the molten steel in accordance with the amount of residual dissolved oxygen in the molten steel previously measured in the laddle.
CONSTITUTION: After refining the molten pig iron by the blow process in a converter, the molten steel is tapped into the laddle 1 without adding Si or Al as a deoxidizing agent, and the slag 3 unavoidably introduced into the laddle 1 is removed by a slag scraper 4. After removing the slag 3, a cover 5 is fitted to the laddle 1, and while agitating the molten steel 2 by blowing an inert gas such as Ar into the laddle 1, Al is added to the molten steel 2 in the form of an Al wire 6 through a feeder or the like in an amount which is determined in accordance with the residual amount of dissolved oxygen in the molten steel 2 measured in advance.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12710380A JPS6043407B2 (en) | 1980-09-16 | 1980-09-16 | Manufacturing method of low solAl steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12710380A JPS6043407B2 (en) | 1980-09-16 | 1980-09-16 | Manufacturing method of low solAl steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5754216A true JPS5754216A (en) | 1982-03-31 |
| JPS6043407B2 JPS6043407B2 (en) | 1985-09-27 |
Family
ID=14951666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12710380A Expired JPS6043407B2 (en) | 1980-09-16 | 1980-09-16 | Manufacturing method of low solAl steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043407B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6191311A (en) * | 1984-10-12 | 1986-05-09 | Nippon Kokan Kk <Nkk> | Refining method of molten steel |
| JPS61194150A (en) * | 1985-02-21 | 1986-08-28 | Nippon Kokan Kk <Nkk> | Highly corrosion-resisting steel plate and refining method thereof |
| JPS6411041A (en) * | 1987-07-03 | 1989-01-13 | Kurimoto Ltd | Double action press |
| KR100916899B1 (en) | 2002-12-27 | 2009-09-09 | 주식회사 포스코 | The method for removing sulfur and preventing nitrogen pick-up at the deoxidized steel |
-
1980
- 1980-09-16 JP JP12710380A patent/JPS6043407B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6191311A (en) * | 1984-10-12 | 1986-05-09 | Nippon Kokan Kk <Nkk> | Refining method of molten steel |
| JPS61194150A (en) * | 1985-02-21 | 1986-08-28 | Nippon Kokan Kk <Nkk> | Highly corrosion-resisting steel plate and refining method thereof |
| JPH0144765B2 (en) * | 1985-02-21 | 1989-09-29 | Nippon Kokan Kk | |
| JPS6411041A (en) * | 1987-07-03 | 1989-01-13 | Kurimoto Ltd | Double action press |
| KR100916899B1 (en) | 2002-12-27 | 2009-09-09 | 주식회사 포스코 | The method for removing sulfur and preventing nitrogen pick-up at the deoxidized steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6043407B2 (en) | 1985-09-27 |
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