BR9809184A - Method and article for introducing a denitrogen flow in a quantity of molten metal and method for denitrating a quantity of molten metal - Google Patents

Method and article for introducing a denitrogen flow in a quantity of molten metal and method for denitrating a quantity of molten metal

Info

Publication number
BR9809184A
BR9809184A BR9809184-0A BR9809184A BR9809184A BR 9809184 A BR9809184 A BR 9809184A BR 9809184 A BR9809184 A BR 9809184A BR 9809184 A BR9809184 A BR 9809184A
Authority
BR
Brazil
Prior art keywords
molten metal
flow
introducing
article
denitrogen
Prior art date
Application number
BR9809184-0A
Other languages
Portuguese (pt)
Inventor
Peter Zasowski
Rama Bommaraju
Original Assignee
Ag Industries Inc
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 Ag Industries Inc filed Critical Ag Industries Inc
Publication of BR9809184A publication Critical patent/BR9809184A/en

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
    • 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
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • 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
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • F27D3/0026—Introducing additives into the melt
    • 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
    • F27D3/18—Charging particulate material using a fluid carrier

Abstract

"MéTODO E ARTIGO PARA INTRODUZIR UM FLUXO DE DESNITROGENAçãO EM UMA QUANTIDADE DE METAL FUNDIDO E MéTODO PARA DESNITROGENAR UMA QUANTIDADE DE METAL FUNDIDO", sendo que o método para introduzir um fluxo de desnitrogenação (26) em metal fundido (22) inclui as etapas de: prover um vetor em forma de cabo (14) tendo um núcleo interno de material de fluxo (26) e uma camada externa (24) usada para conter o núcleo interno do material de fluxo (26); e introduzir o vetor em forma de cabo (14) no metal fundido (22), e sendo que o método para desnitrogenar compreende introduzir um fluxo de desnitrogenação (40) em pó no metal fundido (32) usando uma lança (42)."METHOD AND ARTICLE FOR INTRODUCING A DEHYTHROGENATION FLOW IN A QUANTITY OF CAST METAL AND METHOD FOR DEHYDRATING A QUANTITY OF CAST METAL", and the method for introducing a flow of denitrogenation (26) in molten metal (22) includes the steps of : providing a cable-shaped vector (14) having an inner core of flow material (26) and an outer layer (24) used to contain the inner core of flow material (26); and introducing the cable-shaped vector (14) into the molten metal (22), and the method for denitrogenating comprises introducing a powdered denitrogenation flow (40) into the molten metal (32) using a lance (42).

BR9809184-0A 1997-05-30 1998-05-29 Method and article for introducing a denitrogen flow in a quantity of molten metal and method for denitrating a quantity of molten metal BR9809184A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US86617397A 1997-05-30 1997-05-30
US97977197A 1997-11-26 1997-11-26
PCT/US1998/011528 WO1998054369A1 (en) 1997-05-30 1998-05-29 Method and article for introducing denitrogenizing flux into molten metal

Publications (1)

Publication Number Publication Date
BR9809184A true BR9809184A (en) 2000-08-01

Family

ID=27127935

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9809184-0A BR9809184A (en) 1997-05-30 1998-05-29 Method and article for introducing a denitrogen flow in a quantity of molten metal and method for denitrating a quantity of molten metal

Country Status (11)

Country Link
JP (1) JP2002501578A (en)
KR (1) KR20010013178A (en)
CN (1) CN1084793C (en)
AU (1) AU743299B2 (en)
BR (1) BR9809184A (en)
CA (1) CA2292591A1 (en)
DE (1) DE19882438T1 (en)
ES (1) ES2168934B1 (en)
FI (1) FI19992549A (en)
GB (1) GB2340132A (en)
WO (1) WO1998054369A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2422618A (en) * 2005-01-28 2006-08-02 Injection Alloys Ltd Molten metal refining wire
WO2009028924A1 (en) * 2007-08-29 2009-03-05 Jack Victor Nyrup Aguilar Ionising compound serving as an electric arc stabiliser
KR101017482B1 (en) * 2008-09-29 2011-02-25 현대제철 주식회사 Refining method of boron-addes molten steel for thin slab
CN102277467A (en) * 2010-06-09 2011-12-14 鞍钢股份有限公司 Method for denitrifying molten steel in tapping process of converter
CN115418441B (en) * 2022-08-24 2024-02-06 武汉尚圆融信新型材料有限公司 Efficient denitrification agent and denitrification method for converter tapping process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US34418A (en) * 1862-02-18 Improvement in vegetable and root cutters
US734418A (en) * 1903-03-30 1903-07-21 John Mcardle Plow.
FI56857C (en) * 1977-06-21 1980-04-10 Outokumpu Oy SAFETY OVER ANORDNING FOR REFINING AVAILABLE WITH POWDER FORMATION FAST MATERIAL OCH / ELLER GAS
USRE34418E (en) * 1982-11-23 1993-10-26 Injectall Limited Apparatus and method for introducing substances into liquid metal
US4999053A (en) * 1985-04-26 1991-03-12 Mitsui Engineering And Ship Building Co., Ltd. Method of producing an iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen
US4831742A (en) * 1986-10-15 1989-05-23 Struble James E Contour and outline transducer gage assembly
US4832742A (en) * 1988-05-12 1989-05-23 Metal Research Corporation Flexible refining-agent clad wire for refining molten iron group metal

Also Published As

Publication number Publication date
GB2340132A (en) 2000-02-16
AU7723998A (en) 1998-12-30
ES2168934B1 (en) 2003-11-01
WO1998054369A1 (en) 1998-12-03
DE19882438T1 (en) 2000-06-21
JP2002501578A (en) 2002-01-15
CA2292591A1 (en) 1998-12-03
CN1084793C (en) 2002-05-15
CN1258321A (en) 2000-06-28
AU743299B2 (en) 2002-01-24
KR20010013178A (en) 2001-02-26
GB9927865D0 (en) 2000-01-26
ES2168934A1 (en) 2002-06-16
FI19992549A (en) 1999-11-29

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Legault The eel case.]

Legal Events

Date Code Title Description
EG Technical examination (opinion): publication of technical examination (opinion)
FC Decision: refusal