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EP2039785B1 - Procédé de réduction d'acier dans la poche - Google Patents

Procédé de réduction d'acier dans la poche Download PDF

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Publication number
EP2039785B1
EP2039785B1 EP06843948A EP06843948A EP2039785B1 EP 2039785 B1 EP2039785 B1 EP 2039785B1 EP 06843948 A EP06843948 A EP 06843948A EP 06843948 A EP06843948 A EP 06843948A EP 2039785 B1 EP2039785 B1 EP 2039785B1
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EP
European Patent Office
Prior art keywords
melt
ladle
deoxidizer
density
desoxidant
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.)
Active
Application number
EP06843948A
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German (de)
English (en)
Other versions
EP2039785A1 (fr
EP2039785A4 (fr
Inventor
Edgar Shumaher
Anatoliy Konstantinovich Belitchenko
Gennadiy Arkadevich Lozin
Igor Vitalevich Derevyanchenko
Viktor Nikolaevich Khloponin
Vladimir Konstantinovich Turovskiy
Aleksandr Nikolaevich Savyuk
Konstantin Filippovich Dorn
Vladimir Vladimirovich Yakovenko
Renata Frantski
Aleksandr Heshele
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.)
Techcom GmbH
Original Assignee
Techcom GmbH
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38845840&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2039785(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Techcom GmbH filed Critical Techcom GmbH
Priority to SI200631073T priority Critical patent/SI2039785T1/sl
Priority to PL06843948T priority patent/PL2039785T3/pl
Publication of EP2039785A1 publication Critical patent/EP2039785A1/fr
Publication of EP2039785A4 publication Critical patent/EP2039785A4/fr
Application granted granted Critical
Publication of EP2039785B1 publication Critical patent/EP2039785B1/fr
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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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/0068—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by introducing material into a current of streaming metal
    • 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
    • C21C7/06—Deoxidising, e.g. killing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Multimedia (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Claims (2)

  1. Procédé de désoxydation d'un acier coulé comprenant l'étape consistant à introduire un désoxydant à base d'aluminium en granulés ou en morceaux dans un courant de métal en fusion pendant sa coulée hors d'une unité de production à l'intérieur d'une poche de coulée, dans lequel la densité dudit désoxydant est plus faible que la densité dudit métal en fusion dans ladite poche de coulée, caractérisé en ce que les particules de désoxydant ont une taille allant de 0,5 à 12 mm et sont introduites à l'intérieur du courant de métal en fusion par le biais d'une quantité de mouvement d'un flux concentré de vitesse élevée avec une impulsion allant de 40 à 318,6 N, ce qui permet audit désoxydant de pénétrer directement à l'intérieur dudit métal en fusion, et avec une vitesse qui est estimée à partir de l'équilibre entre une pression dynamique à vitesse élevée et une pression statique à l'intérieur du métal, donné par la relation : ω 2 ⋅ ρ 1 / 2 = l ⋅ ρ 2 ⋅ g ,
    Figure imgb0004
    dans laquelle ω représente la vitesse d'écoulement d'agent chimique ; ρ1 et ρ2 représentent la densité du flux d'agent chimique et la densité du flux d'acier liquide, respectivement ; g représente l'accélération de la pesanteur ; 1 représente la profondeur de pénétration de l'agent chimique à l'intérieur du métal en fusion.
  2. Procédé selon la revendication 1, caractérisé en ce qu'un poste de grenaillage est utilisé pour introduire le désoxydant dans le courant de métal en fusion qui est coulé hors d'une unité de production à l'intérieur d'une poche de coulée.
EP06843948A 2006-06-30 2006-06-30 Procédé de réduction d'acier dans la poche Active EP2039785B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631073T SI2039785T1 (sl) 2006-06-30 2006-06-30 Postopek deoksidacije jekla v loncu
PL06843948T PL2039785T3 (pl) 2006-06-30 2006-06-30 Sposób odtleniania stali w kadzi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000344 WO2008002176A1 (fr) 2006-06-30 2006-06-30 Procédé de réduction d'acier dans la poche

Publications (3)

Publication Number Publication Date
EP2039785A1 EP2039785A1 (fr) 2009-03-25
EP2039785A4 EP2039785A4 (fr) 2009-10-21
EP2039785B1 true EP2039785B1 (fr) 2011-05-04

Family

ID=38845840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06843948A Active EP2039785B1 (fr) 2006-06-30 2006-06-30 Procédé de réduction d'acier dans la poche

Country Status (12)

Country Link
EP (1) EP2039785B1 (fr)
CN (1) CN101522922B (fr)
AT (1) ATE508210T1 (fr)
BR (1) BRPI0621816B1 (fr)
DE (2) DE602006021808D1 (fr)
DK (1) DK2039785T3 (fr)
EA (1) EA014276B1 (fr)
ES (1) ES2328895T3 (fr)
PL (1) PL2039785T3 (fr)
PT (1) PT2039785E (fr)
SI (1) SI2039785T1 (fr)
WO (1) WO2008002176A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113241A1 (de) 2015-08-11 2017-02-16 Rhm Rohstoff-Handelsgesellschaft Mbh Verfahren zum Einbringen von Zuschlagstoffen in Metallschmelzen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031335A (zh) * 2010-11-01 2011-04-27 武汉科技大学 冶炼大线能量焊接高强度钢的复合脱氧剂及使用方法
CN102146518A (zh) * 2011-04-02 2011-08-10 钢铁研究总院 一种气氛保护电渣重熔用精炼剂

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511490A (en) * 1967-02-24 1970-05-12 Brown Fintube Co Apparatus for introducing addition agent into molten steel
SU827560A1 (ru) * 1978-08-25 1981-05-07 Центральный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Черной Металлургии Им.И.П.Бардина Способ получени стали
US4391319A (en) * 1979-08-27 1983-07-05 Keystone Consolidated Industries, Inc. Apparatus for introducing elements into molten metal streams and casting in inert atmosphere
US4389249A (en) * 1982-04-22 1983-06-21 Inland Steel Company Method for adding ingredient to steel as shot
US4863684A (en) * 1989-01-13 1989-09-05 Inland Steel Company Method and apparatus for adding shot to molten steel
CN1030532C (zh) * 1994-01-08 1995-12-20 中国冶金技术公司 使用铝渣进行的钢铁冶炼方法
ATE217354T1 (de) * 1997-03-17 2002-05-15 Stein Ind Anlagen Inh Christel Verfahren zum einbringen von körnigen feststoffen in metallschmelzen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113241A1 (de) 2015-08-11 2017-02-16 Rhm Rohstoff-Handelsgesellschaft Mbh Verfahren zum Einbringen von Zuschlagstoffen in Metallschmelzen

Also Published As

Publication number Publication date
EP2039785A1 (fr) 2009-03-25
PL2039785T3 (pl) 2011-10-31
DK2039785T3 (da) 2011-08-15
CN101522922B (zh) 2012-08-01
BRPI0621816A2 (pt) 2012-09-18
ES2328895T3 (es) 2011-10-18
EP2039785A4 (fr) 2009-10-21
ES2328895T1 (es) 2009-11-19
DE06843948T1 (de) 2009-12-17
BRPI0621816B1 (pt) 2015-06-02
EA014276B1 (ru) 2010-10-29
ATE508210T1 (de) 2011-05-15
DE602006021808D1 (de) 2011-06-16
PT2039785E (pt) 2011-08-17
WO2008002176A1 (fr) 2008-01-03
CN101522922A (zh) 2009-09-02
SI2039785T1 (sl) 2011-09-30
EA200802345A1 (ru) 2009-04-28

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