DE06843948T1 - PFANNENSTAHLDESOXIDATIONSVERFAHREN - Google Patents

PFANNENSTAHLDESOXIDATIONSVERFAHREN Download PDF

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Publication number
DE06843948T1
DE06843948T1 DE06843948T DE06843948T DE06843948T1 DE 06843948 T1 DE06843948 T1 DE 06843948T1 DE 06843948 T DE06843948 T DE 06843948T DE 06843948 T DE06843948 T DE 06843948T DE 06843948 T1 DE06843948 T1 DE 06843948T1
Authority
DE
Germany
Prior art keywords
melt
desoxidant
deoxidizer
pan
granulated
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.)
Pending
Application number
DE06843948T
Other languages
German (de)
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
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=DE06843948(T1) "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
Publication of DE06843948T1 publication Critical patent/DE06843948T1/en
Pending 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
    • C21C7/0075—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.

Claims (5)

Pfannenstahldesoxidationverfahren umfassend die Zugabe eines granulierten oder klumpigen Desoxidationsmittels in einen Schmelzfluss während des Ausgießens aus der Fertigungseinheit in die Pfanne, wobei das Desoxidationsmittel eine Dichte aufweist, die niedriger als die Dichte der Schmelze in der Pfanne ist, dadurch gekennzeichnet, dass das Desoxidationsmittel dem Schmelzfluss mit Schwung als ein konzentrierter Hochgeschwindigkeitsstrom zugeführt wird, wodurch die direkte Penetration des Desoxidationsmittels in die Schmelze gewährleistet wird.A pan-steel deoxidation process comprising adding a granulated or lumpy deoxidizer to a melt flow during pouring from the production unit into the pan, the deoxidizer having a density lower than the density of the melt in the pan, characterized in that the deoxidizer communicates with the melt flow Momentum is supplied as a concentrated high-velocity stream, whereby the direct penetration of the deoxidizer is ensured in the melt. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass für die Zugabe des Desoxidationsmittels in den Schmelzfluss, der aus der Fertigungseinheit in eine Pfanne gegossen wird, ein Kugelstrahler verwendet wird.Method according to claim 1, characterized in that that for the addition of the deoxidizer in the melt flow, the the production unit is poured into a pan, a shot blaster is used becomes. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass als Desoxidationsmittels granuliertes oder klumpiges Aluminium mit einer Korn- oder Klumpengröße von 0,5 mm bis 12 mm verwendet wird.Method according to claim 1, characterized in that that as deoxidizer granulated or lumpy aluminum with a grain or lump size of 0.5 mm to 12 mm is used. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass für die Zugabe des Aluminiums in den Schmelzfluss, der aus der Fertigungseinheit in eine Pfanne gegossen wird, ein Kugelstrahler verwendet wird.Method according to claim 3, characterized that for the addition of aluminum in the melt flow coming out of the manufacturing unit poured into a pan, a shot blaster is used. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Stelle für die Zugabe des Aluminiumstroms in den Fluss in Abhängigkeit von seiner fraktionierten Zusammensetzung ausgewählt wird, wobei mit geringerer Korngröße die Zugabestelle des Stroms in den Fluss dichter an der Oberfläche der Schmelze der sich füllenden Pfanne ist.Method according to claim 4, characterized in that that job for the addition of the aluminum stream into the river in dependence is selected from its fractional composition, with lesser Grain size the point of addition flow into the river closer to the surface of the melt of the filling Pan is.
DE06843948T 2006-06-30 2006-06-30 PFANNENSTAHLDESOXIDATIONSVERFAHREN Pending DE06843948T1 (en)

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 (1)

Publication Number Publication Date
DE06843948T1 true DE06843948T1 (en) 2009-12-17

Family

ID=38845840

Family Applications (2)

Application Number Title Priority Date Filing Date
DE602006021808T Active DE602006021808D1 (en) 2006-06-30 2006-06-30 PFANNENSTAHLDESOXIDATIONSVERFAHREN
DE06843948T Pending DE06843948T1 (en) 2006-06-30 2006-06-30 PFANNENSTAHLDESOXIDATIONSVERFAHREN

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE602006021808T Active DE602006021808D1 (en) 2006-06-30 2006-06-30 PFANNENSTAHLDESOXIDATIONSVERFAHREN

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

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 (en) * 1978-08-25 1981-05-07 Центральный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Черной Металлургии Им.И.П.Бардина Method of steel production
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 (en) * 1994-01-08 1995-12-20 中国冶金技术公司 Iron and steel smelting process by using aluminium slag
ATE217354T1 (en) * 1997-03-17 2002-05-15 Stein Ind Anlagen Inh Christel METHOD FOR INTRODUCING GRANULAR SOLIDS INTO METAL MELTS

Also Published As

Publication number Publication date
EP2039785A1 (en) 2009-03-25
EP2039785B1 (en) 2011-05-04
WO2008002176A1 (en) 2008-01-03
EA200802345A1 (en) 2009-04-28
EP2039785A4 (en) 2009-10-21
BRPI0621816A2 (en) 2012-09-18
PT2039785E (en) 2011-08-17
BRPI0621816B1 (en) 2015-06-02
DK2039785T3 (en) 2011-08-15
CN101522922B (en) 2012-08-01
ES2328895T3 (en) 2011-10-18
ES2328895T1 (en) 2009-11-19
SI2039785T1 (en) 2011-09-30
PL2039785T3 (en) 2011-10-31
CN101522922A (en) 2009-09-02
ATE508210T1 (en) 2011-05-15
DE602006021808D1 (en) 2011-06-16
EA014276B1 (en) 2010-10-29

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