FR2362932A1 - Procede d'affinage de la fonte par soufflage d'oxygene - Google Patents
Procede d'affinage de la fonte par soufflage d'oxygeneInfo
- Publication number
- FR2362932A1 FR2362932A1 FR7626439A FR7626439A FR2362932A1 FR 2362932 A1 FR2362932 A1 FR 2362932A1 FR 7626439 A FR7626439 A FR 7626439A FR 7626439 A FR7626439 A FR 7626439A FR 2362932 A1 FR2362932 A1 FR 2362932A1
- Authority
- FR
- France
- Prior art keywords
- cast iron
- refining
- converter
- nozzle
- blowing oxygen
- 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
- C21C5/34—Blowing through the bath
-
- 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
- C21C2250/00—Specific additives; Means for adding material different from burners or lances
- C21C2250/04—Liquid gas
- C21C2250/042—Liquid oxygen
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)
- Manufacture And Refinement Of Metals (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Procédé d'affinage de la fonte liquide, au convertisseur, selon lequel, à l'aide d'au moins une tuyère à double alimentation, on insuffle, au fond du convertisseur, un gaz d'affinage très oxydant, pouvant être de l'oxygène sensiblement pur, par le conduit central de la tuyère, et on injecte de l'oxygene sensiblement pur, à l'état liquide, par le circuit périphérique de la tuyère. Ce procédé peut avantageusement être mis en oeuvre sur tout convertisseur pourvu de moyens d'affinage par le fond et permet de ne pas introduire, au cours de l'élaboration de l'acier, d'impuretés genantes telles que le soufre, l'azote et l'hydrogène.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7626439A FR2362932A1 (fr) | 1976-08-30 | 1976-08-30 | Procede d'affinage de la fonte par soufflage d'oxygene |
DE19772738273 DE2738273A1 (de) | 1976-08-30 | 1977-08-25 | Frischverfahren mit sauerstoffeinblasung |
SE7709581A SE440231B (sv) | 1976-08-30 | 1977-08-25 | Sett for fersking av metall i en konverter |
CA285,601A CA1112879A (fr) | 1976-08-30 | 1977-08-26 | Procede d'affinage de la fonte par soufflage d'oxygene |
BE1008348A BE858121A (fr) | 1976-08-30 | 1977-08-26 | Procede d'affinage de la fonte par soufflage d'oxygene |
JP10352277A JPS5329215A (en) | 1976-08-30 | 1977-08-29 | Refining method of pig iron by oxigen blowing |
ES461969A ES461969A1 (es) | 1976-08-30 | 1977-08-30 | Procedimiento para afinar arrabio. |
IT2707377A IT1084762B (it) | 1976-08-30 | 1977-08-30 | Procedimento di affinazione della ghisa mediante l'insufflazione di ossigeno |
GB3623877A GB1533803A (en) | 1976-08-30 | 1977-08-30 | Process for refining molten iron by the injection of oxygen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7626439A FR2362932A1 (fr) | 1976-08-30 | 1976-08-30 | Procede d'affinage de la fonte par soufflage d'oxygene |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2362932A1 true FR2362932A1 (fr) | 1978-03-24 |
FR2362932B1 FR2362932B1 (fr) | 1979-01-12 |
Family
ID=9177322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7626439A Granted FR2362932A1 (fr) | 1976-08-30 | 1976-08-30 | Procede d'affinage de la fonte par soufflage d'oxygene |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5329215A (fr) |
BE (1) | BE858121A (fr) |
CA (1) | CA1112879A (fr) |
DE (1) | DE2738273A1 (fr) |
ES (1) | ES461969A1 (fr) |
FR (1) | FR2362932A1 (fr) |
GB (1) | GB1533803A (fr) |
IT (1) | IT1084762B (fr) |
SE (1) | SE440231B (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152413A (en) * | 1981-03-13 | 1982-09-20 | Nippon Kokan Kk <Nkk> | Gas blowing method in vessel for molten metal |
DE4315342C1 (de) * | 1993-05-08 | 1994-02-24 | Messer Griesheim Gmbh | Verfahren zum Behandeln von Metallschmelzen, insbesondere Stahlschmelzen, mit einem Frischmittel |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242169U (fr) * | 1975-09-13 | 1977-03-25 | ||
JPS5322745U (fr) * | 1976-08-03 | 1978-02-25 |
-
1976
- 1976-08-30 FR FR7626439A patent/FR2362932A1/fr active Granted
-
1977
- 1977-08-25 SE SE7709581A patent/SE440231B/xx not_active IP Right Cessation
- 1977-08-25 DE DE19772738273 patent/DE2738273A1/de not_active Withdrawn
- 1977-08-26 BE BE1008348A patent/BE858121A/fr not_active IP Right Cessation
- 1977-08-26 CA CA285,601A patent/CA1112879A/fr not_active Expired
- 1977-08-29 JP JP10352277A patent/JPS5329215A/ja active Pending
- 1977-08-30 ES ES461969A patent/ES461969A1/es not_active Expired
- 1977-08-30 GB GB3623877A patent/GB1533803A/en not_active Expired
- 1977-08-30 IT IT2707377A patent/IT1084762B/it active
Non-Patent Citations (1)
Title |
---|
NEANT * |
Also Published As
Publication number | Publication date |
---|---|
DE2738273A1 (de) | 1978-03-02 |
BE858121A (fr) | 1978-02-27 |
GB1533803A (en) | 1978-11-29 |
FR2362932B1 (fr) | 1979-01-12 |
CA1112879A (fr) | 1981-11-24 |
SE440231B (sv) | 1985-07-22 |
JPS5329215A (en) | 1978-03-18 |
IT1084762B (it) | 1985-05-28 |
SE7709581L (sv) | 1978-03-01 |
ES461969A1 (es) | 1978-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |