CA2292591A1 - Method and article for introducing denitrogenizing flux into molten metal - Google Patents

Method and article for introducing denitrogenizing flux into molten metal Download PDF

Info

Publication number
CA2292591A1
CA2292591A1 CA002292591A CA2292591A CA2292591A1 CA 2292591 A1 CA2292591 A1 CA 2292591A1 CA 002292591 A CA002292591 A CA 002292591A CA 2292591 A CA2292591 A CA 2292591A CA 2292591 A1 CA2292591 A1 CA 2292591A1
Authority
CA
Canada
Prior art keywords
molten metal
flux
denitrogenizing
introducing
silicates
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.)
Abandoned
Application number
CA002292591A
Other languages
English (en)
French (fr)
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
Individual
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 Individual filed Critical Individual
Publication of CA2292591A1 publication Critical patent/CA2292591A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/076Use of slags or fluxes as treating agents
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/04Removing impurities other than carbon, phosphorus or sulfur
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/46Details or accessories
    • C21C5/4606Lances or injectors
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/0025Charging or loading melting furnaces with material in the solid state
    • F27D3/0026Introducing additives into the melt
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/18Charging particulate material using a fluid carrier

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (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)
  • Furnace Charging Or Discharging (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
CA002292591A 1997-05-30 1998-05-29 Method and article for introducing denitrogenizing flux into molten metal Abandoned CA2292591A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US86617397A 1997-05-30 1997-05-30
US08/866,173 1997-05-30
US97977197A 1997-11-26 1997-11-26
US08/979,771 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
CA2292591A1 true CA2292591A1 (en) 1998-12-03

Family

ID=27127935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002292591A Abandoned CA2292591A1 (en) 1997-05-30 1998-05-29 Method and article for introducing denitrogenizing flux into molten metal

Country Status (11)

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

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
CN1258321A (zh) 2000-06-28
GB2340132A (en) 2000-02-16
DE19882438T1 (de) 2000-06-21
WO1998054369A1 (en) 1998-12-03
AU7723998A (en) 1998-12-30
AU743299B2 (en) 2002-01-24
JP2002501578A (ja) 2002-01-15
GB9927865D0 (en) 2000-01-26
ES2168934B1 (es) 2003-11-01
ES2168934A1 (es) 2002-06-16
BR9809184A (pt) 2000-08-01
FI19992549A (fi) 1999-11-29
CN1084793C (zh) 2002-05-15

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Legal Events

Date Code Title Description
FZDE Dead