EP2039785A4 - Ladle steel deoxidation method - Google Patents

Ladle steel deoxidation method

Info

Publication number
EP2039785A4
EP2039785A4 EP06843948A EP06843948A EP2039785A4 EP 2039785 A4 EP2039785 A4 EP 2039785A4 EP 06843948 A EP06843948 A EP 06843948A EP 06843948 A EP06843948 A EP 06843948A EP 2039785 A4 EP2039785 A4 EP 2039785A4
Authority
EP
European Patent Office
Prior art keywords
desoxidant
melt
ladle
lump
deoxidation method
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.)
Granted
Application number
EP06843948A
Other languages
German (de)
French (fr)
Other versions
EP2039785A1 (en
EP2039785B1 (en
Inventor
Edgar Shumaher
Anatoliy Konstantich Belitchenko
Gennadiy Arkadevich Lozin
Igor Vitalevich Derevyanchenko
Viktor Nikolaevich Khloponin
Vladimir Konstantinoch 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
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
Family has litigation
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(A4) "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/en
Priority to PL06843948T priority patent/PL2039785T3/en
Publication of EP2039785A1 publication Critical patent/EP2039785A1/en
Publication of EP2039785A4 publication Critical patent/EP2039785A4/en
Application granted granted Critical
Publication of EP2039785B1 publication Critical patent/EP2039785B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21C7/0075—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

Landscapes

  • 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)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Abstract

The invention relates to producing a high-quality low-carbon steel. The inventive ladle steel deoxidation method consists in introducing granulated or lump desoxidant, the density of which is less than the density of a melt in a ladle, in to a said melt. Said desoxidant is introduced during the melt pouring off a production unit into the ladle by means of a concentrated high-rate flow, the impulse of which allows the desoxidant to penetrate directly inside the melt. The desoxidant is introduced into the melt stream with the aid of a shotblast machine. The desoxidant is embodied in the form of a granulated or lump aluminium of a size ranging from 0,5 to 12,0 mm. The use of the invention makes it possible to reduce the desoxidant loss by two times, to increase the recovery thereof and to improve the metal quality.
EP06843948A 2006-06-30 2006-06-30 Ladle steel deoxidation method Active EP2039785B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631073T SI2039785T1 (en) 2006-06-30 2006-06-30 Ladle steel deoxidation method
PL06843948T PL2039785T3 (en) 2006-06-30 2006-06-30 Ladle steel deoxidation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2006/000344 WO2008002176A1 (en) 2006-06-30 2006-06-30 Ladle steel deoxidation method

Publications (3)

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

Family

ID=38845840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06843948A Active EP2039785B1 (en) 2006-06-30 2006-06-30 Ladle steel deoxidation method

Country Status (12)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031335A (en) * 2010-11-01 2011-04-27 武汉科技大学 Complex deoxidizer for smelting high heat input welded high-strength steel and using method thereof
CN102146518A (en) * 2011-04-02 2011-08-10 钢铁研究总院 Refining agent for atmosphere protected electro-slag re-melting
DE102015113241A1 (en) 2015-08-11 2017-02-16 Rhm Rohstoff-Handelsgesellschaft Mbh Method for introducing additives into molten metals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389249A (en) * 1982-04-22 1983-06-21 Inland Steel Company Method for adding ingredient to steel as shot
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
US4863684A (en) * 1989-01-13 1989-09-05 Inland Steel Company Method and apparatus for adding shot to molten steel

Family Cites Families (4)

* 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 (en) * 1978-08-25 1981-05-07 Центральный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Черной Металлургии Им.И.П.Бардина Method of steel production
CN1030532C (en) * 1994-01-08 1995-12-20 中国冶金技术公司 Iron and steel smelting process by using aluminium slag
WO1998041658A1 (en) * 1997-03-17 1998-09-24 Stein - Industrie-Anlagen Inh. Christel Stein Method for feeding granular solids into metal melts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
WO2008002176A1 (en) 2008-01-03
EP2039785A1 (en) 2009-03-25
EP2039785B1 (en) 2011-05-04
DK2039785T3 (en) 2011-08-15
ES2328895T1 (en) 2009-11-19
EA014276B1 (en) 2010-10-29
CN101522922A (en) 2009-09-02
ATE508210T1 (en) 2011-05-15
PT2039785E (en) 2011-08-17
PL2039785T3 (en) 2011-10-31
BRPI0621816B1 (en) 2015-06-02
DE602006021808D1 (en) 2011-06-16
CN101522922B (en) 2012-08-01
SI2039785T1 (en) 2011-09-30
EA200802345A1 (en) 2009-04-28
BRPI0621816A2 (en) 2012-09-18
ES2328895T3 (en) 2011-10-18
DE06843948T1 (en) 2009-12-17

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