ES472579A1 - Un procedimiento mejorado para la obtencion de acero de bajocontenido en carbono - Google Patents
Un procedimiento mejorado para la obtencion de acero de bajocontenido en carbonoInfo
- Publication number
- ES472579A1 ES472579A1 ES472579A ES472579A ES472579A1 ES 472579 A1 ES472579 A1 ES 472579A1 ES 472579 A ES472579 A ES 472579A ES 472579 A ES472579 A ES 472579A ES 472579 A1 ES472579 A1 ES 472579A1
- Authority
- ES
- Spain
- Prior art keywords
- argon
- basic oxygen
- carbon steels
- oxygen process
- prepare low
- 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.)
- Expired
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)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Un procedimiento mejorado para la obtención de acero de bajo contenido en carbono por soplado de oxígeno en una masa fundida contenida en un convertidor desde encima de la superficie de dicha masa fundida en el que el soplado con oxígeno se ha interrumpido, en el que la mejora comprende la producción de acero que tiene un contenido bajo de nitrógeno por purga de dicho espacio de cabeza del convertidor por inyección de un fluido exento de nitrógeno inmediatamente antes de restablecer la inyección de oxígeno.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US75840877A | 1977-01-11 | 1977-01-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES472579A1 true ES472579A1 (es) | 1979-02-16 |
Family
ID=25051636
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES463059A Expired ES463059A1 (es) | 1977-01-11 | 1977-10-08 | Un procedimiento mejorado para la obtencion de acero de bajocontenido en carbono |
ES472578A Expired ES472578A1 (es) | 1977-01-11 | 1978-08-16 | Un procedimiento mejorado para la obtencion de acero de ba- jo contenido en carbono |
ES472579A Expired ES472579A1 (es) | 1977-01-11 | 1978-08-16 | Un procedimiento mejorado para la obtencion de acero de bajocontenido en carbono |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES463059A Expired ES463059A1 (es) | 1977-01-11 | 1977-10-08 | Un procedimiento mejorado para la obtencion de acero de bajocontenido en carbono |
ES472578A Expired ES472578A1 (es) | 1977-01-11 | 1978-08-16 | Un procedimiento mejorado para la obtencion de acero de ba- jo contenido en carbono |
Country Status (23)
Country | Link |
---|---|
US (1) | US4149878A (es) |
JP (1) | JPS5387919A (es) |
AU (1) | AU511060B2 (es) |
BE (1) | BE859513A (es) |
BR (1) | BR7706779A (es) |
DD (1) | DD134652A5 (es) |
DE (2) | DE2759748C2 (es) |
ES (3) | ES463059A1 (es) |
FI (1) | FI772995A (es) |
FR (1) | FR2376900A1 (es) |
GB (2) | GB1597597A (es) |
HU (1) | HU177270B (es) |
IN (1) | IN148165B (es) |
IT (1) | IT1109308B (es) |
LU (1) | LU78297A1 (es) |
NL (1) | NL7711164A (es) |
NO (1) | NO145277C (es) |
PH (1) | PH12963A (es) |
PL (1) | PL122283B1 (es) |
SE (1) | SE7711341L (es) |
TR (1) | TR20137A (es) |
YU (1) | YU242777A (es) |
ZA (1) | ZA775918B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1143947A (en) * | 1979-02-07 | 1983-04-05 | Jerry V. Spruell | Method for increasing vessel lining life for basic oxygen furnaces |
US4373949A (en) * | 1979-02-07 | 1983-02-15 | Union Carbide Corporation | Method for increasing vessel lining life for basic oxygen furnaces |
US4397685A (en) * | 1982-03-26 | 1983-08-09 | Union Carbide Corporation | Production of ultra low carbon steel by the basic oxygen process |
GB9609099D0 (en) * | 1996-05-01 | 1996-07-03 | Boc Group Plc | Oxygen steelmaking |
US5897684A (en) * | 1997-04-17 | 1999-04-27 | Ltv Steel Company, Inc. | Basic oxygen process with iron oxide pellet addition |
WO2008076901A1 (en) * | 2006-12-15 | 2008-06-26 | Praxair Technology, Inc. | Injection method for inert gas |
CN108690898B (zh) * | 2018-06-14 | 2020-01-07 | 鞍钢股份有限公司 | 一种复吹转炉增氮的精确控制方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT168259B (de) * | 1949-09-21 | 1951-05-10 | Oesterr Alpine Montan | Einrichtung und Verfahren zum Blasen von Gasen gegen die Oberfläche von Metallbädern |
BE610265A (es) * | 1960-11-18 | |||
BE643213A (es) | 1964-01-30 | 1964-05-15 | ||
DE1433652A1 (de) * | 1964-08-08 | 1969-09-18 | Thyssen Huette Ag | Verfahren zur Herstellung stickstoffarmer Staehle |
GB1253581A (en) * | 1968-02-24 | 1971-11-17 | Maximilianshuette Eisenwerk | Improvements in processes and apparatus for making steel |
DE1758816C2 (de) * | 1968-08-13 | 1975-11-20 | Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg | Verfahren zum Frischen von Roheisen zu Stahl |
ZA704201B (en) * | 1969-06-26 | 1971-02-24 | African Oxygen Ltd | Steelmaking |
US3990888A (en) * | 1972-10-06 | 1976-11-09 | Uddeholms Aktiebolag | Decarburization of a metal melt |
JPS5318323B2 (es) * | 1973-12-31 | 1978-06-14 | ||
IT1036194B (it) | 1974-06-07 | 1979-10-30 | British Steel Corp | Procedimento e dispositivo a lancia di ossigeno per la produzione dell acciaio |
DE2538159C2 (de) * | 1974-08-30 | 1984-08-09 | USS Engineers and Consultants, Inc., Pittsburgh, Pa. | Verfahren zum Frischen von Roheisen |
US4021333A (en) * | 1975-08-27 | 1977-05-03 | The Lubrizol Corporation | Method of rerefining oil by distillation and extraction |
-
1977
- 1977-10-04 ZA ZA00775918A patent/ZA775918B/xx unknown
- 1977-10-06 NO NO773410A patent/NO145277C/no unknown
- 1977-10-07 GB GB41775/77A patent/GB1597597A/en not_active Expired
- 1977-10-07 BE BE181570A patent/BE859513A/xx not_active IP Right Cessation
- 1977-10-07 GB GB21054/80A patent/GB1597598A/en not_active Expired
- 1977-10-08 ES ES463059A patent/ES463059A1/es not_active Expired
- 1977-10-10 YU YU02427/77A patent/YU242777A/xx unknown
- 1977-10-10 SE SE7711341A patent/SE7711341L/ not_active Application Discontinuation
- 1977-10-11 BR BR7706779A patent/BR7706779A/pt unknown
- 1977-10-11 LU LU78297A patent/LU78297A1/xx unknown
- 1977-10-11 DE DE2759748A patent/DE2759748C2/de not_active Expired
- 1977-10-11 DE DE2745722A patent/DE2745722C3/de not_active Expired
- 1977-10-11 PH PH20321A patent/PH12963A/en unknown
- 1977-10-11 NL NL7711164A patent/NL7711164A/xx not_active Application Discontinuation
- 1977-10-11 FR FR7730595A patent/FR2376900A1/fr active Granted
- 1977-10-11 FI FI772995A patent/FI772995A/fi not_active Application Discontinuation
- 1977-10-11 IT IT51357/77A patent/IT1109308B/it active
- 1977-10-11 TR TR20137A patent/TR20137A/xx unknown
- 1977-10-11 HU HU77UI267A patent/HU177270B/hu unknown
- 1977-10-11 IN IN306/DEL/77A patent/IN148165B/en unknown
- 1977-10-11 JP JP12104077A patent/JPS5387919A/ja active Granted
- 1977-10-17 PL PL1977201568A patent/PL122283B1/pl unknown
- 1977-10-31 AU AU30198/77A patent/AU511060B2/en not_active Expired
- 1977-11-04 DD DD77201882A patent/DD134652A5/xx unknown
-
1978
- 1978-02-23 US US05/880,562 patent/US4149878A/en not_active Expired - Lifetime
- 1978-08-16 ES ES472578A patent/ES472578A1/es not_active Expired
- 1978-08-16 ES ES472579A patent/ES472579A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IN148165B (es) | 1980-11-15 |
PL122283B1 (en) | 1982-07-31 |
GB1597597A (en) | 1981-09-09 |
NL7711164A (nl) | 1978-07-13 |
NO145277C (no) | 1982-02-17 |
IT1109308B (it) | 1985-12-16 |
HU177270B (en) | 1981-08-28 |
YU242777A (en) | 1982-10-31 |
AU3019877A (en) | 1979-05-10 |
BR7706779A (pt) | 1978-08-01 |
DD134652A5 (de) | 1979-03-14 |
FI772995A (fi) | 1978-07-12 |
NO773410L (no) | 1978-07-12 |
FR2376900A1 (fr) | 1978-08-04 |
DE2759748C2 (de) | 1982-07-29 |
BE859513A (fr) | 1978-04-07 |
PH12963A (en) | 1979-10-19 |
US4149878A (en) | 1979-04-17 |
DE2745722A1 (de) | 1978-07-20 |
FR2376900B1 (es) | 1983-12-23 |
SE7711341L (sv) | 1978-07-12 |
PL201568A1 (pl) | 1978-08-14 |
ZA775918B (en) | 1978-05-30 |
DE2745722C3 (de) | 1981-04-23 |
JPS5387919A (en) | 1978-08-02 |
DE2745722B2 (de) | 1980-08-28 |
AU511060B2 (en) | 1980-07-24 |
ES463059A1 (es) | 1979-01-01 |
JPS5736332B2 (es) | 1982-08-03 |
ES472578A1 (es) | 1979-02-16 |
GB1597598A (en) | 1981-09-09 |
TR20137A (tr) | 1980-09-01 |
LU78297A1 (es) | 1978-06-12 |
NO145277B (no) | 1981-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19980302 |