ZA966280B - Decarburization refining process for chromium-containing molten metal, and associated top blowing lance. - Google Patents

Decarburization refining process for chromium-containing molten metal, and associated top blowing lance.

Info

Publication number
ZA966280B
ZA966280B ZA9606280A ZA966280A ZA966280B ZA 966280 B ZA966280 B ZA 966280B ZA 9606280 A ZA9606280 A ZA 9606280A ZA 966280 A ZA966280 A ZA 966280A ZA 966280 B ZA966280 B ZA 966280B
Authority
ZA
South Africa
Prior art keywords
chromium
molten metal
refining process
blowing lance
containing molten
Prior art date
Application number
ZA9606280A
Other languages
English (en)
Inventor
Hiroshi Nishikawa
Masaru Washio
Tomomichi Terabatake
Akihito Hirota
Naoki Kikuchi
Original Assignee
Kawasaki Steel Co
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 Kawasaki Steel Co filed Critical Kawasaki Steel Co
Publication of ZA966280B publication Critical patent/ZA966280B/xx

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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel
    • 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
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • 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
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
ZA9606280A 1995-07-27 1996-07-24 Decarburization refining process for chromium-containing molten metal, and associated top blowing lance. ZA966280B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19198495A JP3167888B2 (ja) 1995-07-27 1995-07-27 含クロム溶鋼の脱炭精錬方法及び精錬ガス用上吹ランス

Publications (1)

Publication Number Publication Date
ZA966280B true ZA966280B (en) 1997-02-11

Family

ID=16283702

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9606280A ZA966280B (en) 1995-07-27 1996-07-24 Decarburization refining process for chromium-containing molten metal, and associated top blowing lance.

Country Status (8)

Country Link
US (1) US5769923A (id)
EP (1) EP0756012B1 (id)
JP (1) JP3167888B2 (id)
KR (1) KR100221350B1 (id)
BR (1) BR9603163A (id)
DE (1) DE69604542T2 (id)
IN (1) IN187548B (id)
ZA (1) ZA966280B (id)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6171544B1 (en) * 1999-04-02 2001-01-09 Praxair Technology, Inc. Multiple coherent jet lance
US6773484B2 (en) * 2002-06-26 2004-08-10 Praxair Technology, Inc. Extensionless coherent jet system with aligned flame envelope ports
EP1380656A1 (en) * 2002-07-10 2004-01-14 Corus Technology BV Direct melting furnace and process therefor
RU2325445C2 (ru) * 2002-07-10 2008-05-27 Корус Текнолоджи Бв Металлургический сосуд и способ прямого восстановления железа
AT411530B (de) * 2002-08-21 2004-02-25 Voest Alpine Ind Anlagen Verfahren und vorrichtung zur entkohlung einer stahlschmelze
JP2007537355A (ja) * 2004-05-14 2007-12-20 ザ・ビーオーシー・グループ・インコーポレーテッド 溶融金属の精錬
JP5277979B2 (ja) * 2009-01-15 2013-08-28 新日鐵住金株式会社 溶融金属精錬用上吹きランス
BR112017021087B1 (pt) * 2015-03-30 2021-08-31 Jfe Steel Corporation Método de operação de conversor de sopro superior e inferior
CN113862551B (zh) * 2021-12-06 2022-03-04 北京科技大学 氩氧精炼炉喷吹不锈钢除尘灰冶炼不锈钢的工艺控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB872368A (en) * 1959-05-01 1961-07-05 United Steel Companies Ltd Improvements relating to lances for use in steel-making
BE648779A (id) * 1963-10-23 1964-10-01
LU56392A1 (id) * 1967-07-04 1968-10-21
FR2474531B1 (fr) * 1980-01-24 1986-08-14 Ugine Gueugnon Sa Procede de decarburation des fontes au chrome, pour l'elaboration d'aciers inoxydables, par jet d'oxygene supersonique
US4514220A (en) * 1984-04-26 1985-04-30 Allegheny Ludlum Steel Corporation Method for producing steel in a top-blown vessel
JPH0243803A (ja) * 1988-08-04 1990-02-14 Nippon Telegr & Teleph Corp <Ntt> パラボラアンテナ

Also Published As

Publication number Publication date
BR9603163A (pt) 1998-05-05
EP0756012B1 (en) 1999-10-06
DE69604542D1 (de) 1999-11-11
JPH0941018A (ja) 1997-02-10
DE69604542T2 (de) 2000-04-13
IN187548B (id) 2002-05-18
EP0756012A1 (en) 1997-01-29
US5769923A (en) 1998-06-23
JP3167888B2 (ja) 2001-05-21
KR100221350B1 (ko) 1999-09-15
KR970006516A (ko) 1997-02-21

Similar Documents

Publication Publication Date Title
ZA929352B (en) Method of decarburizing molten metal in the refining of steel using neural networks.
AU675245B2 (en) Process for producing molten pig iron or molten steel pre-products
ZA992438B (en) Method of producing a reduced metal, and traveling hearth furnace for producing same.
ZA962673B (en) High temperature oxygen production for ironmaking processes.
EP0778356A4 (en) METHOD FOR PRODUCING FERRITIC IRON BASED ALLOYS AND HEAT-RESISTANT FERRITIC STEEL
EP0785284A4 (en) PROCESS FOR VACUUM REFINING OF MOLTEN STEEL
ZA966280B (en) Decarburization refining process for chromium-containing molten metal, and associated top blowing lance.
CA2171149A1 (en) Reduced dusting bath system for continuous metallurgical treatment of sulfide materials
EP0802262A4 (en) TOP-BLOWING REFINING TECHNIQUE USING A CONVERTER HAVING EXCELLENT DECARBURIZATION FEATURES AND TOP-BLOWING LANCE FOR CONVERTER
EP0331751A4 (en) METHOD FOR decarburizing HIGH-CHROMED RAW IRON.
ZA97740B (en) Ferrous metallurgical process and installation.
GB2281312B (en) Process for decarburizing carbon-containing molten metal
BR9502692A (pt) Processo de refino de descarbonetação de aço fundido contendo cr.
AU1155999A (en) Method for producing directly-reduced iron, liquid pig iron and steel
AU2000247847A1 (en) Method for recovering useful metal from slag generated in steel-making process while treating the slag
ZA979015B (en) Process for producing liquid pig iron or steel preproducts and plant for carrying out the process.
AU1081197A (en) Molten metal reactor and process
ZA976927B (en) Process for making pig iron.
EP0622597A3 (de) Verfahren und Vorrichtung zum Schmelzen von Metall insbesondere von Nichteisenmetall.
ZA9711236B (en) Method of producing molten metal.
EP0486695A4 (en) Process for refining molten metal or alloy
ZA991939B (en) Process for producing liquid pig iron and/or primary steel products.
ZA99166B (en) Process for producing molten pig iron.
PL311550A1 (en) Molten metal refining and recarburising agent especially for molten steel
AU7523598A (en) Method of producing molten pig iron or molten primary steel products