JPS5690920A - Steel making method - Google Patents
Steel making methodInfo
- Publication number
- JPS5690920A JPS5690920A JP17013579A JP17013579A JPS5690920A JP S5690920 A JPS5690920 A JP S5690920A JP 17013579 A JP17013579 A JP 17013579A JP 17013579 A JP17013579 A JP 17013579A JP S5690920 A JPS5690920 A JP S5690920A
- Authority
- JP
- Japan
- Prior art keywords
- blowing
- under stirring
- steel
- converter
- oxygen blowing
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To make possible continuous casting of an ingot corresponding to rimmed steel by performing oxygen blowing in such a manner as to keep blowing-out carbon at less than predetermined amount and adding Al after refining under stirring thereby regulating O, Al, and Si contents. CONSTITUTION:Steel bath is put into such a converter into which gas can be introduced from below the bath surface and oxygen blowing is performed so that blowing-out carbon is kept at >=0.05%. At a proper time during oxygen blowing and after the oxygen blowing, an inert gas is introduced from below the steel bath surface, whereby refining under stirring is accomplished. After the refining under stirring, the molten steel is tapped from the converter into a ladle while the inclusion of the converter slag is being suppressed. During and/or after the tapping, Al is added and deoxidation is performed, whereby free oxygen is regulated to <=70ppm, total Al to <=0.020%, and Si to an unavoidable content. Thereby, an ingot which does not evolve CO and having no defects such as pinholes is stably and continuously cast.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54170135A JPS5952921B2 (en) | 1979-12-25 | 1979-12-25 | Steel manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54170135A JPS5952921B2 (en) | 1979-12-25 | 1979-12-25 | Steel manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5690920A true JPS5690920A (en) | 1981-07-23 |
JPS5952921B2 JPS5952921B2 (en) | 1984-12-22 |
Family
ID=15899302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54170135A Expired JPS5952921B2 (en) | 1979-12-25 | 1979-12-25 | Steel manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5952921B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5763619A (en) * | 1980-10-06 | 1982-04-17 | Nippon Kokan Kk <Nkk> | Production of continuous cast steel |
JPS5834124A (en) * | 1981-08-25 | 1983-02-28 | Kawasaki Steel Corp | Controlling method for content of nitrogen in killed steel |
CN115011751A (en) * | 2022-06-22 | 2022-09-06 | 包头钢铁(集团)有限责任公司 | High manganese steel converter end point manganese alloying control method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1284155A (en) * | 1961-02-15 | 1962-02-09 | Ct Nat De Rech S Metallurg A S | Method and installation for controlling the effervescence and calming of steel in continuous casting and steel in accordance with that obtained by said process or similar process |
JPS5425209A (en) * | 1977-07-27 | 1979-02-26 | Sumitomo Metal Ind Ltd | Method of producing super low carbon steel |
-
1979
- 1979-12-25 JP JP54170135A patent/JPS5952921B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1284155A (en) * | 1961-02-15 | 1962-02-09 | Ct Nat De Rech S Metallurg A S | Method and installation for controlling the effervescence and calming of steel in continuous casting and steel in accordance with that obtained by said process or similar process |
JPS5425209A (en) * | 1977-07-27 | 1979-02-26 | Sumitomo Metal Ind Ltd | Method of producing super low carbon steel |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5763619A (en) * | 1980-10-06 | 1982-04-17 | Nippon Kokan Kk <Nkk> | Production of continuous cast steel |
JPS5834124A (en) * | 1981-08-25 | 1983-02-28 | Kawasaki Steel Corp | Controlling method for content of nitrogen in killed steel |
CN115011751A (en) * | 2022-06-22 | 2022-09-06 | 包头钢铁(集团)有限责任公司 | High manganese steel converter end point manganese alloying control method |
CN115011751B (en) * | 2022-06-22 | 2023-08-25 | 包头钢铁(集团)有限责任公司 | Endpoint manganese alloying control method for high manganese steel converter |
Also Published As
Publication number | Publication date |
---|---|
JPS5952921B2 (en) | 1984-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3971655A (en) | Method for treatment of molten steel in a ladle | |
JPH0230711A (en) | Manufacture of extremely low carbon steel having superior cleanness | |
US4286984A (en) | Compositions and methods of production of alloy for treatment of liquid metals | |
GB1041269A (en) | Method for adding additives to molten steel while tapping | |
US3392009A (en) | Method of producing low carbon, non-aging, deep drawing steel | |
US3099552A (en) | Method of making low sulfur steel | |
JPS5690920A (en) | Steel making method | |
US3922166A (en) | Alloying steel with highly reactive materials | |
US2990272A (en) | Desulphurizing molten iron | |
JPS56102514A (en) | Manufacture of steel | |
JPS5698415A (en) | Steel making method | |
US2715064A (en) | Method of producing silicon steel | |
JPH0153329B2 (en) | ||
JPS5690919A (en) | Steel making method | |
RU2816888C1 (en) | Method of producing steel with specified limit on sulphur content | |
SU632731A1 (en) | Method of producing steel | |
JPS5754216A (en) | Production of low solved aluminum steel | |
RU1777610C (en) | Method for desulfurization and alloying with titanium of corrosion-resistant steel | |
GB934645A (en) | Improvements in or relating to a process of producing refined molten iron and producing alloy steel therefrom | |
RU2164245C2 (en) | Method of carbon steel making | |
SU1120022A1 (en) | Method of alloying steel with nitrogen | |
JPS56146817A (en) | Refining method for molten steel in ladle | |
RU2114183C1 (en) | Method of ladle steel treatment | |
SU779408A1 (en) | Method of low-carbon steel killing | |
SU1211303A1 (en) | Method of producing alloyed steel |