FR2360671A1 - Procede de conduite de l'affinage de l'acier au convertisseur - Google Patents
Procede de conduite de l'affinage de l'acier au convertisseurInfo
- Publication number
- FR2360671A1 FR2360671A1 FR7723966A FR7723966A FR2360671A1 FR 2360671 A1 FR2360671 A1 FR 2360671A1 FR 7723966 A FR7723966 A FR 7723966A FR 7723966 A FR7723966 A FR 7723966A FR 2360671 A1 FR2360671 A1 FR 2360671A1
- Authority
- FR
- France
- Prior art keywords
- slag
- content
- feo
- steel
- refining
- 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.)
- Withdrawn
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
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)
Abstract
L'invention concerne un procédé de conduite de l'affinage de l'acier. Ce procédé est caractérisé en ce que de l'oxygène de soufflage est insufflé en vue de l'obtention de la teneur en FeO du laitier, la teneur en FeO requise étant fixée à un taux plus élevé que celui résultant de l'établissement d'un équilibre entre les teneurs en P ou Mn du bain et celles du laitier, que l'on introduit de la chaux, en une quantité qui correspond à la teneur en CaO, dans le système quasi-ternaire (CaO)'-(FeO)'-(SiO2 )', de la saturation en chaux ou en silicate dicalcique à la température finale du bain, compte tenu de la teneur en FeO et de la quantité de SiO2 escomptée à partir de la quantité de Si présente dans la charge, la basicité du laitier étant maintenue au-dessus de 2,8, la quantité de laitier étant fixée à au moins 50 kg/tonne de fonte, la teneur en Mn de l'acier brut étant maintenue à au moins 20 % en poids et celle du P à 0,03 % en poids au plus, la température finale requise étant réglée par ajustement des quantités d'agents refroidissants et la quantité d'acier nécessaire l'étant par ajustement de la quantité de fonte Application à l'affinage de l'acier.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT578076A AT346876B (de) | 1976-08-04 | 1976-08-04 | Verfahren zur steuerung eines stahlfrischprozesses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2360671A1 true FR2360671A1 (fr) | 1978-03-03 |
Family
ID=3579540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7723966A Withdrawn FR2360671A1 (fr) | 1976-08-04 | 1977-08-03 | Procede de conduite de l'affinage de l'acier au convertisseur |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4147532A (fr) |
| JP (1) | JPS5319124A (fr) |
| AT (1) | AT346876B (fr) |
| BE (1) | BE857452A (fr) |
| BR (1) | BR7705121A (fr) |
| DD (1) | DD130584A5 (fr) |
| DE (1) | DE2730600A1 (fr) |
| FR (1) | FR2360671A1 (fr) |
| GB (1) | GB1598922A (fr) |
| IT (1) | IT1086103B (fr) |
| LU (1) | LU77905A1 (fr) |
| NL (1) | NL7708528A (fr) |
| PL (1) | PL199936A1 (fr) |
| SE (1) | SE7708836L (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011110392A1 (fr) | 2010-03-09 | 2011-09-15 | Siemens Aktiengesellschaft | Procédé de réglage d'une consistance de scories et dispositif de mise en œuvre du procédé |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1583318B1 (de) * | 1966-05-23 | 1972-03-09 | Nippon Steel Corp | Verfahren zur Ermittlung des Kohlenstoffgehalts einer Stahlschmelze in einem Sauerstoffaufblaskonverter |
| US3720404A (en) * | 1967-06-27 | 1973-03-13 | Westinghouse Electric Corp | System for controlling carbon removal in a basic oxygen furnace |
| US3574598A (en) * | 1967-08-18 | 1971-04-13 | Bethlehem Steel Corp | Method for controlling basic oxygen steelmaking |
| US3598386A (en) * | 1967-10-09 | 1971-08-10 | Crucible Steel Co America | Apparatus for making steel |
-
1976
- 1976-08-04 AT AT578076A patent/AT346876B/de not_active IP Right Cessation
-
1977
- 1977-07-07 DE DE19772730600 patent/DE2730600A1/de not_active Ceased
- 1977-07-15 US US05/816,205 patent/US4147532A/en not_active Expired - Lifetime
- 1977-07-18 GB GB30110/77A patent/GB1598922A/en not_active Expired
- 1977-07-29 PL PL19993677A patent/PL199936A1/xx not_active IP Right Cessation
- 1977-08-01 DD DD7700200378A patent/DD130584A5/xx unknown
- 1977-08-01 IT IT7726376A patent/IT1086103B/it active
- 1977-08-02 NL NL7708528A patent/NL7708528A/xx not_active Application Discontinuation
- 1977-08-03 LU LU77905A patent/LU77905A1/xx unknown
- 1977-08-03 BE BE179886A patent/BE857452A/fr unknown
- 1977-08-03 JP JP9331177A patent/JPS5319124A/ja active Pending
- 1977-08-03 BR BR7705121A patent/BR7705121A/pt unknown
- 1977-08-03 FR FR7723966A patent/FR2360671A1/fr not_active Withdrawn
- 1977-08-03 SE SE7708836A patent/SE7708836L/ not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7708528A (nl) | 1978-02-07 |
| PL199936A1 (pl) | 1978-03-28 |
| GB1598922A (en) | 1981-09-23 |
| US4147532A (en) | 1979-04-03 |
| ATA578076A (de) | 1978-04-15 |
| BE857452A (fr) | 1977-12-01 |
| BR7705121A (pt) | 1978-05-30 |
| SE7708836L (sv) | 1978-02-05 |
| JPS5319124A (en) | 1978-02-22 |
| LU77905A1 (fr) | 1977-11-14 |
| DD130584A5 (de) | 1978-04-12 |
| AT346876B (de) | 1978-11-27 |
| DE2730600A1 (de) | 1978-02-09 |
| IT1086103B (it) | 1985-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2360671A1 (fr) | Procede de conduite de l'affinage de l'acier au convertisseur | |
| US4373949A (en) | Method for increasing vessel lining life for basic oxygen furnaces | |
| FR2457902A1 (fr) | Procede d'affinage d'acier fondu contenant du chrome | |
| US2893861A (en) | Method of refining crude iron | |
| Trentini et al. | “OLP”: Oxygen, lime-powder injection: A new steelmaking process | |
| JPS5760004A (en) | Converter refining method | |
| JPS5594415A (en) | Steel making method of less slag producing amount | |
| JPS57110612A (en) | Vacuum refining method of low carbon, low nitrogen and high chromium steel | |
| KIMURA et al. | Characteristics of Refining Process with a Little Quantity of Slag in the Top and Bottom Blowing Converter | |
| SU466285A1 (ru) | Способ азотировани сталей и сплавов | |
| SU773092A1 (ru) | Способ рафинировани расплавленной стали | |
| JPS5244715A (en) | Continuous method of refining molten iron alloy by using alkali metal compoun | |
| JPS5690920A (en) | Steel making method | |
| JPS5773114A (en) | Method for adding aluminum to molten steel | |
| SU351906A1 (ru) | СПОСОБ ПОЛУЧЕНИЯ КРЕМНИСТОЙ СТАЛИВСЕСОЮЗНАЯП••-г•^•f!rг;l•>& vrv'r;>&:iiT'-J^ig iutt:;(i^?'^.A.i-^ ^*^sf5i|F, ; ._. - I . .,4 ^>&-.-, .X3_*i-u->&i::-':'..; ' ''•-''••^§ | |
| SU729249A1 (ru) | Устройство дл получени железоуглеродистого расплава | |
| JPS5690919A (en) | Steel making method | |
| SU1186647A1 (ru) | Способ передела ванадиевых чугунов | |
| Chakrabarti | Optimisation of Process Parameters of Secondary Refining Including Vacuum Degassing for Success in Achieving Quality in Continuously Cast Steel and Steel Made via Ingot Route | |
| ES8705925A1 (es) | Un metodo para tratar acero fundido | |
| SU954428A1 (ru) | Способ выплавки стали | |
| SU621730A1 (ru) | Способ внепечной десульфурации чугуна | |
| RU1836441C (ru) | Способ производства ванадийсодержащей стали | |
| SU1673607A1 (ru) | Способ раскислени кип щей стали | |
| Konoplya et al. | Analysis of Overall Desulphurisation When Low-Sulphur Steel Is Being Made in 350-400 t Converters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |