EP1715065A2 - Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil - Google Patents

Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil Download PDF

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Publication number
EP1715065A2
EP1715065A2 EP06008183A EP06008183A EP1715065A2 EP 1715065 A2 EP1715065 A2 EP 1715065A2 EP 06008183 A EP06008183 A EP 06008183A EP 06008183 A EP06008183 A EP 06008183A EP 1715065 A2 EP1715065 A2 EP 1715065A2
Authority
EP
European Patent Office
Prior art keywords
calcium
steel
wire
magnesium
oxide
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.)
Withdrawn
Application number
EP06008183A
Other languages
German (de)
English (en)
Other versions
EP1715065A3 (fr
Inventor
Wouter Karel Tiekink
Rob Kooter
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.)
Tata Steel Ijmuiden BV
Original Assignee
Corus Staal BV
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 Corus Staal BV filed Critical Corus Staal BV
Priority to EP06008183A priority Critical patent/EP1715065A3/fr
Publication of EP1715065A2 publication Critical patent/EP1715065A2/fr
Publication of EP1715065A3 publication Critical patent/EP1715065A3/fr
Withdrawn legal-status Critical Current

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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
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires

Definitions

  • the distribution enhancing compound having a vapour pressure under the circumstances in a steel melt particularly at the liquid steel temperature of about 1600 °C, for instance in the ladle in a steel plant, which is higher than that of the calcium or calcium containing compound.
  • This higher vapour pressure boosts the calcium or calcium containing compound in a direction away from the wire, preferably substantially perpendicularly to the injection direction of the wire.
  • the amount of magnesium must be carefully trimmed to avoid too much turbulence and too much MgO pick up in the calcium aluminates.
  • the weight ratio of magnesium to calcium is between 1 to 10%, preferably at most 8%, more preferably at most 5%.
  • the ratio of magnesium to calcium is at least 1.5%, more preferably at least 2%.
  • the distribution enhancing compound comprises a compound having a vapour pressure which is higher than the vapour pressure of calcium at liquid steel temperatures.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP06008183A 2005-04-20 2006-04-20 Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil Withdrawn EP1715065A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06008183A EP1715065A3 (fr) 2005-04-20 2006-04-20 Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05075937 2005-04-20
EP06008183A EP1715065A3 (fr) 2005-04-20 2006-04-20 Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil

Publications (2)

Publication Number Publication Date
EP1715065A2 true EP1715065A2 (fr) 2006-10-25
EP1715065A3 EP1715065A3 (fr) 2007-08-15

Family

ID=36997447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008183A Withdrawn EP1715065A3 (fr) 2005-04-20 2006-04-20 Fil fourré pour traiter l'acier en fusion et procédé pour le traitement en utilisant ce fil

Country Status (1)

Country Link
EP (1) EP1715065A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928153A1 (fr) * 2008-03-03 2009-09-04 Affival Soc Par Actions Simpli Nouvel additif pour le traitement des aciers resulfures
WO2012015642A2 (fr) * 2010-07-29 2012-02-02 Dressel Gregory L Composition et procédé pour rendement amélioré dans fabrication d'acier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315005A (en) * 1969-05-08 1973-04-26 Kobe Steel Ltd Method for manufacturing sound steel ingots
FR2521593A1 (fr) * 1982-02-12 1983-08-19 Showa Denko Kk Agent d'affinage de metal en fusion et procede de production de cet agent
EP0190089A1 (fr) * 1985-01-24 1986-08-06 Vallourec Procédé de traitement de métaux liquides par fil fourre contenant du calcium
KR100336855B1 (ko) * 1997-11-28 2002-10-18 주식회사 포스코 고청정알루미늄탈산강제조용후럭스와이어

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2421743B2 (de) * 1974-05-06 1979-06-07 Ototani, Tohei, Sendai (Japan) Verfahren zum Herstellen eines stangenförmigen Desoxydations- und Entschwefelungsmittels für Eisen- oder Stahlschmelzen o.dgl
US4094666A (en) * 1977-05-24 1978-06-13 Metal Research Corporation Method for refining molten iron and steels
FR2792234B1 (fr) * 1999-04-15 2001-06-01 Lorraine Laminage Traitement pour ameliorer la coulabilite d'acier calme a l'aluminium coule en continu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315005A (en) * 1969-05-08 1973-04-26 Kobe Steel Ltd Method for manufacturing sound steel ingots
FR2521593A1 (fr) * 1982-02-12 1983-08-19 Showa Denko Kk Agent d'affinage de metal en fusion et procede de production de cet agent
EP0190089A1 (fr) * 1985-01-24 1986-08-06 Vallourec Procédé de traitement de métaux liquides par fil fourre contenant du calcium
KR100336855B1 (ko) * 1997-11-28 2002-10-18 주식회사 포스코 고청정알루미늄탈산강제조용후럭스와이어

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928153A1 (fr) * 2008-03-03 2009-09-04 Affival Soc Par Actions Simpli Nouvel additif pour le traitement des aciers resulfures
WO2009115722A1 (fr) * 2008-03-03 2009-09-24 Affival Nouvel additif pour le traitement des aciers resulfures
US9023126B2 (en) 2008-03-03 2015-05-05 Affival Additive for treating resulphurized steel
WO2012015642A2 (fr) * 2010-07-29 2012-02-02 Dressel Gregory L Composition et procédé pour rendement amélioré dans fabrication d'acier
WO2012015642A3 (fr) * 2010-07-29 2014-03-20 Dressel Gregory L Composition et procédé pour rendement amélioré dans fabrication d'acier
US8828117B2 (en) 2010-07-29 2014-09-09 Gregory L. Dressel Composition and process for improved efficiency in steel making

Also Published As

Publication number Publication date
EP1715065A3 (fr) 2007-08-15

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