ES463059A1 - 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
- ES463059A1 ES463059A1 ES463059A ES463059A ES463059A1 ES 463059 A1 ES463059 A1 ES 463059A1 ES 463059 A ES463059 A ES 463059A ES 463059 A ES463059 A ES 463059A ES 463059 A1 ES463059 A1 ES 463059A1
- 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 inyección de oxígeno en una masa fundida férrea contenida en un convertidor desde encima de la superficie de dicha masa fundida, en el que la mejora comprende la producción de acero que tiene un bajo contenido de nitrógeno por las operaciones siguientes: (a) introducir un fluido exento de nitrógeno en el convertidor antes que el contenido de nitrógeno de la masa fundida haya alcanzado su nivel mínimo, mientras que se continúa el soplado con oxígeno, (b) ajustar el caudal de dicho fluido exento de nitrógeno de tal modo que el caudal total de gas residual que sale del convertidor se mantenga al menos igual al que se habría producido sin dicho fluido exento de nitrógeno en el momento del procedimiento de afino en que el contenido de nitrógeno de la masa fundida alcanzase su nivel mínimo, y (c) continuar la inyección de dicho fluido exento de nitrógeno sustancialmente durante todo el resto del periodo de soplado con 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 |
|---|---|
| ES463059A1 true ES463059A1 (es) | 1979-01-01 |
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 After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
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 |
|---|---|---|---|---|
| US4373949A (en) * | 1979-02-07 | 1983-02-15 | Union Carbide Corporation | Method for increasing vessel lining life for basic oxygen furnaces |
| CA1143947A (en) * | 1979-02-07 | 1983-04-05 | Jerry V. Spruell | 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 |
| BRPI0720287B1 (pt) * | 2006-12-15 | 2017-05-09 | Praxair Technology Inc | método de injetar gás inerte no banho localizado dentro de um forno metalúrgico tendo uma atmosfera de forno aquecida. |
| 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 GB GB21054/80A patent/GB1597598A/en not_active Expired
- 1977-10-07 BE BE181570A patent/BE859513A/xx not_active IP Right Cessation
- 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 HU HU77UI267A patent/HU177270B/hu unknown
- 1977-10-11 TR TR20137A patent/TR20137A/xx unknown
- 1977-10-11 BR BR7706779A patent/BR7706779A/pt unknown
- 1977-10-11 FI FI772995A patent/FI772995A/fi not_active Application Discontinuation
- 1977-10-11 PH PH20321A patent/PH12963A/en unknown
- 1977-10-11 IT IT51357/77A patent/IT1109308B/it active
- 1977-10-11 FR FR7730595A patent/FR2376900A1/fr active Granted
- 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 NL NL7711164A patent/NL7711164A/xx not_active Application Discontinuation
- 1977-10-11 JP JP12104077A patent/JPS5387919A/ja active Granted
- 1977-10-11 IN IN306/DEL/77A patent/IN148165B/en unknown
- 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 |
|---|---|
| AU511060B2 (en) | 1980-07-24 |
| TR20137A (tr) | 1980-09-01 |
| JPS5736332B2 (es) | 1982-08-03 |
| BE859513A (fr) | 1978-04-07 |
| NO145277B (no) | 1981-11-09 |
| PL122283B1 (en) | 1982-07-31 |
| IT1109308B (it) | 1985-12-16 |
| SE7711341L (sv) | 1978-07-12 |
| FR2376900A1 (fr) | 1978-08-04 |
| US4149878A (en) | 1979-04-17 |
| FR2376900B1 (es) | 1983-12-23 |
| NO773410L (no) | 1978-07-12 |
| GB1597598A (en) | 1981-09-09 |
| DE2745722A1 (de) | 1978-07-20 |
| PH12963A (en) | 1979-10-19 |
| GB1597597A (en) | 1981-09-09 |
| IN148165B (es) | 1980-11-15 |
| DE2745722B2 (de) | 1980-08-28 |
| DE2759748C2 (de) | 1982-07-29 |
| PL201568A1 (pl) | 1978-08-14 |
| ES472578A1 (es) | 1979-02-16 |
| NL7711164A (nl) | 1978-07-13 |
| LU78297A1 (es) | 1978-06-12 |
| FI772995A (fi) | 1978-07-12 |
| BR7706779A (pt) | 1978-08-01 |
| HU177270B (en) | 1981-08-28 |
| YU242777A (en) | 1982-10-31 |
| DD134652A5 (de) | 1979-03-14 |
| AU3019877A (en) | 1979-05-10 |
| JPS5387919A (en) | 1978-08-02 |
| ZA775918B (en) | 1978-05-30 |
| DE2745722C3 (de) | 1981-04-23 |
| NO145277C (no) | 1982-02-17 |
| ES472579A1 (es) | 1979-02-16 |
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