BR9710996A - Processo para a fabricação de aço em um forno elétrico - Google Patents

Processo para a fabricação de aço em um forno elétrico

Info

Publication number
BR9710996A
BR9710996A BR9710996-7A BR9710996A BR9710996A BR 9710996 A BR9710996 A BR 9710996A BR 9710996 A BR9710996 A BR 9710996A BR 9710996 A BR9710996 A BR 9710996A
Authority
BR
Brazil
Prior art keywords
electric oven
injection
oven
content
making steel
Prior art date
Application number
BR9710996-7A
Other languages
English (en)
Inventor
Andre Kremer
Guy Denier
Jean-Luc Roth
Original Assignee
Wurth Paul Sa
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 Wurth Paul Sa filed Critical Wurth Paul Sa
Publication of BR9710996A publication Critical patent/BR9710996A/pt

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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • 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
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Silicon Compounds (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

"PROCESSO PARA A FABRICAçãO DE AçO EM UM FORNO ELéTRICO", no qual uma quantidade determinada de fundição líquida é enfornada no forno elétrico, e que compreende as seguintes etapas: a) enfornação de fundição líquida, de maneira contínua e com débito controlado, sem interrupção do aquecimento pelo arco elétrico, b) injeção de um gás de afinação no forno, antes que o teor de C e/ou de Si do banho metálico alcance um valor limite determinado, ocorrendo a injeção de maneira contínua até o final da enfornação, e C) contituação da injeção do gás de afinação após a enfornação da quantidade de fundição prevista, até ser atingido o valor alvo de teor de C e/ou de Si do banho metálico.
BR9710996-7A 1996-07-03 1997-06-10 Processo para a fabricação de aço em um forno elétrico BR9710996A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU88785A LU88785A1 (fr) 1996-07-03 1996-07-03 Procédé de fabrication d'acier dans un four électrique avec enfournement de fonte liquide
PCT/EP1997/003005 WO1998001588A1 (fr) 1996-07-03 1997-06-10 Procede de fabrication d'acier dans un four electrique avec enfournement de fonte liquide

Publications (1)

Publication Number Publication Date
BR9710996A true BR9710996A (pt) 2000-03-14

Family

ID=19731612

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9710996-7A BR9710996A (pt) 1996-07-03 1997-06-10 Processo para a fabricação de aço em um forno elétrico

Country Status (27)

Country Link
US (2) USRE37897E1 (pt)
EP (1) EP0909334B1 (pt)
JP (1) JP2001516397A (pt)
CN (1) CN1069700C (pt)
AR (1) AR013587A1 (pt)
AT (1) ATE193332T1 (pt)
AU (1) AU713175B2 (pt)
BR (1) BR9710996A (pt)
CA (1) CA2259522A1 (pt)
CZ (1) CZ288467B6 (pt)
DE (1) DE69702134T2 (pt)
EA (1) EA001340B1 (pt)
ES (1) ES2146472T3 (pt)
GE (1) GEP20022842B (pt)
GR (1) GR3033674T3 (pt)
ID (1) ID17569A (pt)
LU (1) LU88785A1 (pt)
MY (1) MY126318A (pt)
NO (1) NO990027L (pt)
NZ (1) NZ333307A (pt)
PL (1) PL185211B1 (pt)
PT (1) PT909334E (pt)
TR (1) TR199802334T2 (pt)
TW (1) TW345596B (pt)
UA (1) UA47487C2 (pt)
WO (1) WO1998001588A1 (pt)
ZA (1) ZA975512B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410333B (de) * 2000-10-10 2003-03-25 Josef Martin Gmbh & Co Kg Anordnung zum auswechselbaren befestigen eines anbauteiles, z.b. einer baggerschaufel, an einem baggerausleger oder einem fahrzeug
US6693947B1 (en) 2002-09-25 2004-02-17 D. L. Schroeder & Associates Method to protect the anode bottoms in batch DC electric arc furnace steel production
DE102004040494C5 (de) * 2004-08-20 2012-10-11 Siemens Ag Verfahren und Vorrichtung zum Betrieb eines Elektrolichtbogenofens
WO2013102490A1 (en) * 2012-01-03 2013-07-11 Abb Research Ltd A method for melting steel
CN104328243B (zh) * 2014-11-07 2016-02-17 达力普石油专用管有限公司 适量配碳大用电量控制用氧电弧炉炼钢法
CN112410505B (zh) * 2020-09-30 2022-06-14 盐城市联鑫钢铁有限公司 一种电炉高效低成本冶炼工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2325597A1 (de) * 1973-05-19 1974-12-05 Rheinstahl Ag Verfahren zur erzeugung von fluessigem stahl aus einem sonderroheisen
FR2347443A1 (fr) * 1976-04-07 1977-11-04 Creusot Loire Procede d'elaboration d'aciers au four a arcs, avec chargement continu
AT384669B (de) * 1986-03-17 1987-12-28 Voest Alpine Ag Anlage zur herstellung von stahl aus schrott
ATA121393A (de) * 1993-06-21 1998-07-15 Voest Alpine Ind Anlagen Konverter und verfahren zur herstellung von stahl
DE4434369C2 (de) * 1994-09-15 1997-08-07 Mannesmann Ag Verfahren und Vorrichtung zum metallurgischen Behandeln von Eisen
AT404841B (de) * 1995-04-10 1999-03-25 Voest Alpine Ind Anlagen Anlage und verfahren zum herstellen von eisenschmelzen

Also Published As

Publication number Publication date
PL185211B1 (pl) 2003-04-30
EA199900064A1 (ru) 1999-06-24
ZA975512B (en) 1998-01-30
UA47487C2 (uk) 2002-07-15
JP2001516397A (ja) 2001-09-25
CZ288467B6 (en) 2001-06-13
TR199802334T2 (xx) 1999-02-22
GR3033674T3 (en) 2000-10-31
DE69702134D1 (de) 2000-06-29
LU88785A1 (fr) 1998-01-03
NO990027D0 (no) 1999-01-04
NZ333307A (en) 1999-11-29
TW345596B (en) 1998-11-21
US6238452B1 (en) 2001-05-29
CN1223694A (zh) 1999-07-21
EP0909334A1 (fr) 1999-04-21
CA2259522A1 (fr) 1998-01-15
CN1069700C (zh) 2001-08-15
AU3174697A (en) 1998-02-02
AR013587A1 (es) 2001-01-10
ATE193332T1 (de) 2000-06-15
USRE37897E1 (en) 2002-11-05
GEP20022842B (en) 2002-11-25
MY126318A (en) 2006-09-29
PT909334E (pt) 2000-10-31
ES2146472T3 (es) 2000-08-01
EA001340B1 (ru) 2001-02-26
WO1998001588A1 (fr) 1998-01-15
PL330956A1 (en) 1999-06-21
DE69702134T2 (de) 2000-11-09
EP0909334B1 (fr) 2000-05-24
ID17569A (id) 1998-01-08
NO990027L (no) 1999-01-04
AU713175B2 (en) 1999-11-25
CZ435998A3 (cs) 1999-09-15

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Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06G Technical and formal requirements: other requirements [chapter 6.7 patent gazette]

Free format text: O INTERESSADO DEVERA APRESENTAR A COMPLEMENTACAO DA RETRIBUICAO REFERENTE A PEDIDO DE EXAME PARA 13(TREZE) REIVINDICACOES ADICIONAIS NO VALOR DE R

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 10A , 11A E 12A ANUIDADES.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AO DESPACHO 24.3 PUBLICADO NA RPI 2002 DE 19/05/2009.