JPS5378913A - Refining method for steel for decreasing generating amount of slag - Google Patents
Refining method for steel for decreasing generating amount of slagInfo
- Publication number
- JPS5378913A JPS5378913A JP15494676A JP15494676A JPS5378913A JP S5378913 A JPS5378913 A JP S5378913A JP 15494676 A JP15494676 A JP 15494676A JP 15494676 A JP15494676 A JP 15494676A JP S5378913 A JPS5378913 A JP S5378913A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- generating amount
- decreasing
- steel
- refining method
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE:To decrease the generating amount of the slag and, at the same time, to obtain the properties with which the slag can be reutilized, by blowing O2 from the bath below the specified arte, lowering the temperature of the molten pig iron after the treatment below the specified temperature, thus making the desilliconization prefrential and carrying out the decarbonization and dephosphorization using the desiliconized molten pig iron as the main raw material in the oxygen steel making furnace.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15494676A JPS5378913A (en) | 1976-12-24 | 1976-12-24 | Refining method for steel for decreasing generating amount of slag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15494676A JPS5378913A (en) | 1976-12-24 | 1976-12-24 | Refining method for steel for decreasing generating amount of slag |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5378913A true JPS5378913A (en) | 1978-07-12 |
JPS5625247B2 JPS5625247B2 (en) | 1981-06-11 |
Family
ID=15595371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15494676A Granted JPS5378913A (en) | 1976-12-24 | 1976-12-24 | Refining method for steel for decreasing generating amount of slag |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5378913A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394165A (en) * | 1981-08-19 | 1983-07-19 | Nippon Steel Corporation | Method of preliminary desiliconization of molten iron by injecting gaseous oxygen |
JP2008196026A (en) * | 2007-02-14 | 2008-08-28 | Jfe Steel Kk | Method for preliminarily treating molten pig iron |
JP2018127671A (en) * | 2017-02-08 | 2018-08-16 | 新日鐵住金株式会社 | Refining method for molten steel |
-
1976
- 1976-12-24 JP JP15494676A patent/JPS5378913A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394165A (en) * | 1981-08-19 | 1983-07-19 | Nippon Steel Corporation | Method of preliminary desiliconization of molten iron by injecting gaseous oxygen |
JP2008196026A (en) * | 2007-02-14 | 2008-08-28 | Jfe Steel Kk | Method for preliminarily treating molten pig iron |
JP2018127671A (en) * | 2017-02-08 | 2018-08-16 | 新日鐵住金株式会社 | Refining method for molten steel |
Also Published As
Publication number | Publication date |
---|---|
JPS5625247B2 (en) | 1981-06-11 |
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