DE50307383D1 - Verfahren und vorrichtung zur entkohlung einer stahlschmelze - Google Patents

Verfahren und vorrichtung zur entkohlung einer stahlschmelze

Info

Publication number
DE50307383D1
DE50307383D1 DE50307383T DE50307383T DE50307383D1 DE 50307383 D1 DE50307383 D1 DE 50307383D1 DE 50307383 T DE50307383 T DE 50307383T DE 50307383 T DE50307383 T DE 50307383T DE 50307383 D1 DE50307383 D1 DE 50307383D1
Authority
DE
Germany
Prior art keywords
molten steel
gas
decooling
steel melt
decarburization
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.)
Expired - Lifetime
Application number
DE50307383T
Other languages
German (de)
English (en)
Inventor
Yuyou Zhai
Johannes Mueller
Johannes Spiess
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Application granted granted Critical
Publication of DE50307383D1 publication Critical patent/DE50307383D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4606—Lances or injectors
    • 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
    • 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
    • C21C7/072—Treatment with gases
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
DE50307383T 2002-08-21 2003-07-15 Verfahren und vorrichtung zur entkohlung einer stahlschmelze Expired - Lifetime DE50307383D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0125002A AT411530B (de) 2002-08-21 2002-08-21 Verfahren und vorrichtung zur entkohlung einer stahlschmelze
PCT/EP2003/007634 WO2004018714A1 (de) 2002-08-21 2003-07-15 Verfahren und vorrichtung zur entkohlung einer stahlschmelze

Publications (1)

Publication Number Publication Date
DE50307383D1 true DE50307383D1 (de) 2007-07-12

Family

ID=3687818

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50307383T Expired - Lifetime DE50307383D1 (de) 2002-08-21 2003-07-15 Verfahren und vorrichtung zur entkohlung einer stahlschmelze

Country Status (8)

Country Link
EP (2) EP1764421A3 (es)
CN (1) CN100532581C (es)
AT (2) AT411530B (es)
AU (1) AU2003257462A1 (es)
DE (1) DE50307383D1 (es)
ES (1) ES2287557T3 (es)
RU (1) RU2319750C2 (es)
WO (1) WO2004018714A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009049896A1 (de) * 2009-01-22 2010-08-05 Sms Siemag Ag Impulsspülung mit Inertgas beim BOF- und AOD-Konverterprozess
DE102014222727A1 (de) * 2014-11-06 2016-05-12 Sms Group Gmbh Verfahren und Vorrichtung zur Erzeugung eines Rostfreistahls
WO2024100435A1 (en) * 2022-11-10 2024-05-16 Arcelormittal Post combustion lance

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT216032B (de) * 1959-02-20 1961-07-10 Arbed Vorrichtung zum Beblasen eines Metallbades von oben
NL6710354A (es) * 1966-07-27 1968-01-29
JPS5589395A (en) * 1978-12-26 1980-07-05 Sumitomo Metal Ind Ltd Gasification of solid carbonaceous material and its device
JPS6040486B2 (ja) * 1979-07-03 1985-09-11 住友金属工業株式会社 鋼の精錬法
JPS6063307A (ja) * 1983-09-14 1985-04-11 Kawasaki Steel Corp 極低炭素鋼の転炉製鋼法
LU86322A1 (fr) * 1986-02-25 1987-09-10 Arbed Lance de soufflage d'oxygene
LU88023A1 (fr) * 1991-10-30 1993-05-17 Arbed Lance de soufflage
JPH06158142A (ja) * 1992-11-24 1994-06-07 Sumitomo Metal Ind Ltd 高クロム鋼の真空脱炭精錬装置
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
JP3167888B2 (ja) * 1995-07-27 2001-05-21 川崎製鉄株式会社 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

Also Published As

Publication number Publication date
AT411530B (de) 2004-02-25
RU2319750C2 (ru) 2008-03-20
EP1764421A3 (de) 2007-12-26
AU2003257462A1 (en) 2004-03-11
CN1675383A (zh) 2005-09-28
EP1530648B1 (de) 2007-05-30
ATA12502002A (de) 2003-07-15
RU2005107698A (ru) 2005-09-10
WO2004018714A1 (de) 2004-03-04
ATE363546T1 (de) 2007-06-15
EP1764421A2 (de) 2007-03-21
CN100532581C (zh) 2009-08-26
EP1530648A1 (de) 2005-05-18
ES2287557T3 (es) 2007-12-16

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Representative=s name: MAIER, D., DIPL.-ING. UNIV., PAT.-ASS., 85221 DACH

8328 Change in the person/name/address of the agent

Representative=s name: MAIER, D., DIPL.-ING. UNIV., PAT.-ASS., 85221 DACH

8364 No opposition during term of opposition