ES2168934B1 - Metodo y istema para producir acero con bajo contenido de nitrogeno. - Google Patents

Metodo y istema para producir acero con bajo contenido de nitrogeno.

Info

Publication number
ES2168934B1
ES2168934B1 ES009950067A ES9950067A ES2168934B1 ES 2168934 B1 ES2168934 B1 ES 2168934B1 ES 009950067 A ES009950067 A ES 009950067A ES 9950067 A ES9950067 A ES 9950067A ES 2168934 B1 ES2168934 B1 ES 2168934B1
Authority
ES
Spain
Prior art keywords
molten metal
istema
inner core
nitrogen content
low nitrogen
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
ES009950067A
Other languages
English (en)
Other versions
ES2168934A1 (es
Inventor
Peter Zasowski
Rama Bommaraju
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.)
AG Industries Inc Pennsylvania
Original Assignee
AG Industries Inc Pennsylvania
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 Pennsylvania filed Critical AG Industries Inc Pennsylvania
Publication of ES2168934A1 publication Critical patent/ES2168934A1/es
Application granted granted Critical
Publication of ES2168934B1 publication Critical patent/ES2168934B1/es
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
    • C21C7/076—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Un método de introducir un material fundente desnitrogenizante en un depósito de metal fundido incluye los pasos de proporcionar un vector parecido a alambre que tiene un núcleo interior de material fundente y una capa exterior que se usa para contener el núcleo interior, y usar una máquina de alimentar alambre para introducir el vector parecido a alambre en un depósito de metal fundido. En comparación con las técnicas convencionales de extracción superior de escoria, este proceso permite inyectar el material del que se hace el núcleo interior, al depósito de metal fundido a una velocidad y dirección que promueven una mezcla controlada del material fundente y el metal fundido.
ES009950067A 1997-05-30 1998-12-03 Metodo y istema para producir acero con bajo contenido de nitrogeno. Expired - Lifetime ES2168934B1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86617397A 1997-05-30 1997-05-30
US97977197A 1997-11-26 1997-11-26

Publications (2)

Publication Number Publication Date
ES2168934A1 ES2168934A1 (es) 2002-06-16
ES2168934B1 true ES2168934B1 (es) 2003-11-01

Family

ID=27127935

Family Applications (1)

Application Number Title Priority Date Filing Date
ES009950067A Expired - Lifetime ES2168934B1 (es) 1997-05-30 1998-12-03 Metodo y istema para producir acero con bajo contenido de nitrogeno.

Country Status (11)

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

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 (es) * 2007-08-29 2009-03-05 Jack Victor Nyrup Aguilar Compuesto ionizante estabilizador del arco eléctrico
KR101017482B1 (ko) * 2008-09-29 2011-02-25 현대제철 주식회사 박슬라브 주조용 보론 첨가 용강의 정련방법
CN102277467A (zh) * 2010-06-09 2011-12-14 鞍钢股份有限公司 一种转炉出钢过程钢水脱氮的方法
CN115418441B (zh) * 2022-08-24 2024-02-06 武汉尚圆融信新型材料有限公司 转炉出钢过程的高效脱氮剂及其脱氮方法

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 (fi) * 1977-06-21 1980-04-10 Outokumpu Oy Saett och anordning foer raffinering av smaeltor med ett pulverformigt 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
KR20010013178A (ko) 2001-02-26
CN1084793C (zh) 2002-05-15
BR9809184A (pt) 2000-08-01
GB2340132A (en) 2000-02-16
AU7723998A (en) 1998-12-30
FI19992549A (fi) 1999-11-29
JP2002501578A (ja) 2002-01-15
DE19882438T1 (de) 2000-06-21
ES2168934A1 (es) 2002-06-16
CN1258321A (zh) 2000-06-28
AU743299B2 (en) 2002-01-24
WO1998054369A1 (en) 1998-12-03
CA2292591A1 (en) 1998-12-03
GB9927865D0 (en) 2000-01-26

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