FR2376900A1 - Procede a l'oxygene pour la preparation d'aciers a faible teneur en carbone et en azote par utilisation de l'argon - Google Patents
Procede a l'oxygene pour la preparation d'aciers a faible teneur en carbone et en azote par utilisation de l'argonInfo
- Publication number
- FR2376900A1 FR2376900A1 FR7730595A FR7730595A FR2376900A1 FR 2376900 A1 FR2376900 A1 FR 2376900A1 FR 7730595 A FR7730595 A FR 7730595A FR 7730595 A FR7730595 A FR 7730595A FR 2376900 A1 FR2376900 A1 FR 2376900A1
- Authority
- FR
- France
- Prior art keywords
- low carbon
- nitrogen
- nitrogen content
- steels
- argon
- 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)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Procédé de production d'acier à faible teneur en carbone par soufflage d'oxygène par le dessus de la surface d'un bain de métal ferreux contenu dans un récipient. Il consiste à introduire un fluide sans azote avant que la teneur en azote du bain atteigne un minimum, à maintenir le débit de l'effluent gazeux à une valeur au moins égale à un minimum donné, et à poursuivre l'introduction de fluide sans azote pendant la partie restante du soufflage d'oxygène. Domaine d'application : production d'acier à faible teneur en carbone et à faible teneur en azote.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US75840877A | 1977-01-11 | 1977-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2376900A1 true FR2376900A1 (fr) | 1978-08-04 |
FR2376900B1 FR2376900B1 (fr) | 1983-12-23 |
Family
ID=25051636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7730595A Granted FR2376900A1 (fr) | 1977-01-11 | 1977-10-11 | Procede a l'oxygene pour la preparation d'aciers a faible teneur en carbone et en azote par utilisation de l'argon |
Country Status (23)
Country | Link |
---|---|
US (1) | US4149878A (fr) |
JP (1) | JPS5387919A (fr) |
AU (1) | AU511060B2 (fr) |
BE (1) | BE859513A (fr) |
BR (1) | BR7706779A (fr) |
DD (1) | DD134652A5 (fr) |
DE (2) | DE2759748C2 (fr) |
ES (3) | ES463059A1 (fr) |
FI (1) | FI772995A (fr) |
FR (1) | FR2376900A1 (fr) |
GB (2) | GB1597598A (fr) |
HU (1) | HU177270B (fr) |
IN (1) | IN148165B (fr) |
IT (1) | IT1109308B (fr) |
LU (1) | LU78297A1 (fr) |
NL (1) | NL7711164A (fr) |
NO (1) | NO145277C (fr) |
PH (1) | PH12963A (fr) |
PL (1) | PL122283B1 (fr) |
SE (1) | SE7711341L (fr) |
TR (1) | TR20137A (fr) |
YU (1) | YU242777A (fr) |
ZA (1) | ZA775918B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0805217A2 (fr) * | 1996-05-01 | 1997-11-05 | The BOC Group plc | Production d'acier à soufflage d'oxygène |
Families Citing this family (6)
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 (fr) * | 1979-02-07 | 1983-04-05 | Jerry V. Spruell | Methode de prolongation de la duree utile du chemisage refractaire des fours a l'oxygene basique |
US4397685A (en) * | 1982-03-26 | 1983-08-09 | Union Carbide Corporation | Production of ultra low carbon steel by the basic oxygen process |
US5897684A (en) * | 1997-04-17 | 1999-04-27 | Ltv Steel Company, Inc. | Basic oxygen process with iron oxide pellet addition |
CN101568651B (zh) * | 2006-12-15 | 2012-06-27 | 普莱克斯技术有限公司 | 惰性气体注入方法 |
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE643213A (fr) * | 1964-01-30 | 1964-05-15 | ||
DE1433652A1 (de) * | 1964-08-08 | 1969-09-18 | Thyssen Huette Ag | Verfahren zur Herstellung stickstoffarmer Staehle |
FR2047962A7 (en) * | 1969-06-26 | 1971-03-19 | British Oxygen Co Ltd | Steel refining process for top blowing con - verter |
Family Cites Families (9)
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 (fr) * | 1960-11-18 | |||
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 |
US3990888A (en) * | 1972-10-06 | 1976-11-09 | Uddeholms Aktiebolag | Decarburization of a metal melt |
JPS5318323B2 (fr) * | 1973-12-31 | 1978-06-14 | ||
DE2525355A1 (de) * | 1974-06-07 | 1975-12-18 | British Steel Corp | Verfahren und vorrichtung zum frischen von eisen |
FR2283229A1 (fr) * | 1974-08-30 | 1976-03-26 | Uss Eng & Consult | Procede pour produire de l'acier a faible teneur en azote |
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 BE BE181570A patent/BE859513A/fr not_active IP Right Cessation
- 1977-10-07 GB GB21054/80A patent/GB1597598A/en not_active Expired
- 1977-10-07 GB GB41775/77A patent/GB1597597A/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 PH PH20321A patent/PH12963A/en unknown
- 1977-10-11 HU HU77UI267A patent/HU177270B/hu unknown
- 1977-10-11 IN IN306/DEL/77A patent/IN148165B/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 NL NL7711164A patent/NL7711164A/xx not_active Application Discontinuation
- 1977-10-11 JP JP12104077A patent/JPS5387919A/ja active Granted
- 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 FI FI772995A patent/FI772995A/fi not_active Application Discontinuation
- 1977-10-11 TR TR20137A patent/TR20137A/xx unknown
- 1977-10-11 BR BR7706779A patent/BR7706779A/pt 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
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE643213A (fr) * | 1964-01-30 | 1964-05-15 | ||
DE1433652A1 (de) * | 1964-08-08 | 1969-09-18 | Thyssen Huette Ag | Verfahren zur Herstellung stickstoffarmer Staehle |
FR2047962A7 (en) * | 1969-06-26 | 1971-03-19 | British Oxygen Co Ltd | Steel refining process for top blowing con - verter |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0805217A2 (fr) * | 1996-05-01 | 1997-11-05 | The BOC Group plc | Production d'acier à soufflage d'oxygène |
EP0805217A3 (fr) * | 1996-05-01 | 1998-05-27 | The BOC Group plc | Production d'acier à soufflage d'oxygène |
US5980607A (en) * | 1996-05-01 | 1999-11-09 | The Boc Group Plc | Steelmaking method with oxygen from rectification of air |
Also Published As
Publication number | Publication date |
---|---|
US4149878A (en) | 1979-04-17 |
HU177270B (en) | 1981-08-28 |
LU78297A1 (fr) | 1978-06-12 |
IT1109308B (it) | 1985-12-16 |
DD134652A5 (de) | 1979-03-14 |
NL7711164A (nl) | 1978-07-13 |
ZA775918B (en) | 1978-05-30 |
YU242777A (en) | 1982-10-31 |
NO145277B (no) | 1981-11-09 |
DE2745722A1 (de) | 1978-07-20 |
GB1597598A (en) | 1981-09-09 |
SE7711341L (sv) | 1978-07-12 |
ES463059A1 (es) | 1979-01-01 |
PH12963A (en) | 1979-10-19 |
AU511060B2 (en) | 1980-07-24 |
IN148165B (fr) | 1980-11-15 |
DE2745722C3 (de) | 1981-04-23 |
BR7706779A (pt) | 1978-08-01 |
GB1597597A (en) | 1981-09-09 |
JPS5387919A (en) | 1978-08-02 |
TR20137A (tr) | 1980-09-01 |
FI772995A (fi) | 1978-07-12 |
ES472578A1 (es) | 1979-02-16 |
AU3019877A (en) | 1979-05-10 |
PL201568A1 (pl) | 1978-08-14 |
NO145277C (no) | 1982-02-17 |
DE2759748C2 (de) | 1982-07-29 |
JPS5736332B2 (fr) | 1982-08-03 |
FR2376900B1 (fr) | 1983-12-23 |
NO773410L (no) | 1978-07-12 |
ES472579A1 (es) | 1979-02-16 |
BE859513A (fr) | 1978-04-07 |
DE2745722B2 (de) | 1980-08-28 |
PL122283B1 (en) | 1982-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |