FR2362932A1 - Procede d'affinage de la fonte par soufflage d'oxygene - Google Patents

Procede d'affinage de la fonte par soufflage d'oxygene

Info

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
Application number
FR7626439A
Other languages
English (en)
Other versions
FR2362932B1 (fr
Inventor
Pierre Vayssiere
Guy Denier
Georges Giroud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7626439A priority Critical patent/FR2362932A1/fr
Priority to SE7709581A priority patent/SE440231B/xx
Priority to DE19772738273 priority patent/DE2738273A1/de
Priority to BE1008348A priority patent/BE858121A/fr
Priority to CA285,601A priority patent/CA1112879A/fr
Priority to JP10352277A priority patent/JPS5329215A/ja
Priority to IT2707377A priority patent/IT1084762B/it
Priority to GB3623877A priority patent/GB1533803A/en
Priority to ES461969A priority patent/ES461969A1/es
Publication of FR2362932A1 publication Critical patent/FR2362932A1/fr
Application granted granted Critical
Publication of FR2362932B1 publication Critical patent/FR2362932B1/fr
Granted legal-status Critical Current

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.
FR7626439A 1976-08-30 1976-08-30 Procede d'affinage de la fonte par soufflage d'oxygene Granted FR2362932A1 (fr)

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
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
ES461969A ES461969A1 (es) 1976-08-30 1977-08-30 Procedimiento para afinar arrabio.

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242169U (fr) * 1975-09-13 1977-03-25
JPS5322745U (fr) * 1976-08-03 1978-02-25

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
CA1112879A (fr) 1981-11-24
SE7709581L (sv) 1978-03-01
IT1084762B (it) 1985-05-28
JPS5329215A (en) 1978-03-18
BE858121A (fr) 1978-02-27
FR2362932B1 (fr) 1979-01-12
DE2738273A1 (de) 1978-03-02
ES461969A1 (es) 1978-06-01
SE440231B (sv) 1985-07-22
GB1533803A (en) 1978-11-29

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