FR2457902A1 - Procede d'affinage d'acier fondu contenant du chrome - Google Patents

Procede d'affinage d'acier fondu contenant du chrome

Info

Publication number
FR2457902A1
FR2457902A1 FR8011802A FR8011802A FR2457902A1 FR 2457902 A1 FR2457902 A1 FR 2457902A1 FR 8011802 A FR8011802 A FR 8011802A FR 8011802 A FR8011802 A FR 8011802A FR 2457902 A1 FR2457902 A1 FR 2457902A1
Authority
FR
France
Prior art keywords
oxygen
decarburation
bath
refining
molten steel
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
FR8011802A
Other languages
English (en)
Other versions
FR2457902B1 (fr
Inventor
Tadamasa Yajima
Shuzo Kitagawa
Hiromi Hata
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.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
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 Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Publication of FR2457902A1 publication Critical patent/FR2457902A1/fr
Application granted granted Critical
Publication of FR2457902B1 publication Critical patent/FR2457902B1/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
    • C21C5/35—Blowing from above and 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

L'AFFINAGE PAR DECARBURATION EST REALISE PAR SOUFFLAGE D'UN GAZ CONTENANT DE L'OXYGENE AU-DESSUS DE LA SURFACE D'UN BAIN D'ACIER FONDU ET D'UN MELANGE D'OXYGENE ET D'UN GAZ INERTE AU-DESSOUS DE LADITE SURFACE, LA QUANTITE INSUFFLEE AU-DESSUS DU BAIN REPRESENTANT AU MOINS 0,2 FOIS LA QUANTITE D'OXYGENE INSUFFLEE AU-DESSOUS DE LADITE SURFACE, POUR TRANSFORMER LE CO PRODUIT AU COURS DE LA DECARBURATION, EN CO, CETTE CONVERSION PRODUISANT UNE ENERGIE EXOTHERMIQUE QUI EST DIFFUSEE DIRECTEMENT DANS LE BAIN D'ACIER FONDU PAR L'AGITATION VIOLENTE PROVOQUEE PAR L'INSUFFLATION DU MELANGE D'OXYGENE ET DE GAZ INERTE DANS LE BAIN POUR AUGMENTER LA TEMPERATURE DE CE DERNIER ET PROVOQUE AINSI L'ACCELERATION DE LA REACTION DE DECARBURATION. APPLICATION NOTAMMENT A L'AFFINAGE DES ACIERS AU CHROME.
FR8011802A 1979-05-29 1980-05-28 Procede d'affinage d'acier fondu contenant du chrome Granted FR2457902A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54066487A JPS5921367B2 (ja) 1979-05-29 1979-05-29 含クロム鋼の精錬方法

Publications (2)

Publication Number Publication Date
FR2457902A1 true FR2457902A1 (fr) 1980-12-26
FR2457902B1 FR2457902B1 (fr) 1983-10-28

Family

ID=13317191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011802A Granted FR2457902A1 (fr) 1979-05-29 1980-05-28 Procede d'affinage d'acier fondu contenant du chrome

Country Status (3)

Country Link
US (1) US4272287A (fr)
JP (1) JPS5921367B2 (fr)
FR (1) FR2457902A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527634A1 (fr) * 1982-05-28 1983-12-02 Sumitomo Metal Ind Procede de production d'acier a teneur ultra-faible en phosphore
EP0204210A1 (fr) * 1985-05-20 1986-12-10 Union Carbide Corporation Procédé pour contrôler l'oxygène secondaire soufflé par le haut lors du raffinage par insufflection d'acier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5896812A (ja) * 1981-12-02 1983-06-09 Nippon Steel Corp 脱炭精錬方法
JPS58130216A (ja) * 1982-01-28 1983-08-03 Nippon Steel Corp 高合金鋼、ステンレス鋼の溶製法
JP2515059B2 (ja) * 1991-06-27 1996-07-10 新日本製鐵株式会社 含クロム溶鋼の脱炭精錬法
JP3410553B2 (ja) * 1994-07-27 2003-05-26 新日本製鐵株式会社 含クロム溶鋼の脱炭精錬法
CN115558738B (zh) * 2022-11-01 2023-10-20 鞍钢股份有限公司 一种复吹转炉低氧势冶炼高铬钢水的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2158140A1 (en) * 1971-11-05 1973-06-15 Creusot Loire Steel making - by top and bottom blowing oxygen with a fluid contg hydrocarbons
FR2233401A1 (fr) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
US3860418A (en) * 1971-06-16 1975-01-14 Stora Kopparbergs Bergslags Ab Method of refining iron melts containing chromium
FR2273873A1 (fr) * 1974-06-07 1976-01-02 British Steel Corp Procede et installation pour produire un acier allie
FR2322202A1 (fr) * 1975-08-29 1977-03-25 Siderurgie Fse Inst Rech Procede d'elaboration d'acier par soufflage d'oxygene

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997335A (en) * 1972-11-24 1976-12-14 United States Steel Corporation Method of optimum burning of carbon monoxide in a converter
JPS4865108A (fr) * 1972-12-06 1973-09-08
AT337736B (de) * 1973-02-12 1977-07-11 Voest Ag Verfahren zum frischen von roheisen
US4127638A (en) * 1976-09-13 1978-11-28 American Optical Corporation Process for casting polymer rods
DE2737832C3 (de) * 1977-08-22 1980-05-22 Fried. Krupp Huettenwerke Ag, 4630 Bochum Verwendung von im Querschnitt veränderlichen Blasdüsen zur Herstellung von rostfreien Stählen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860418A (en) * 1971-06-16 1975-01-14 Stora Kopparbergs Bergslags Ab Method of refining iron melts containing chromium
FR2158140A1 (en) * 1971-11-05 1973-06-15 Creusot Loire Steel making - by top and bottom blowing oxygen with a fluid contg hydrocarbons
FR2233401A1 (fr) * 1973-06-18 1975-01-10 Allegheny Ludlum Ind Inc
FR2273873A1 (fr) * 1974-06-07 1976-01-02 British Steel Corp Procede et installation pour produire un acier allie
FR2322202A1 (fr) * 1975-08-29 1977-03-25 Siderurgie Fse Inst Rech Procede d'elaboration d'acier par soufflage d'oxygene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527634A1 (fr) * 1982-05-28 1983-12-02 Sumitomo Metal Ind Procede de production d'acier a teneur ultra-faible en phosphore
EP0204210A1 (fr) * 1985-05-20 1986-12-10 Union Carbide Corporation Procédé pour contrôler l'oxygène secondaire soufflé par le haut lors du raffinage par insufflection d'acier

Also Published As

Publication number Publication date
JPS5921367B2 (ja) 1984-05-19
US4272287A (en) 1981-06-09
FR2457902B1 (fr) 1983-10-28
JPS55158213A (en) 1980-12-09

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