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RU2011147471A - METHOD AND DEVICE FOR CONTINUOUS CASTING OF SLAB - Google Patents

METHOD AND DEVICE FOR CONTINUOUS CASTING OF SLAB Download PDF

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Publication number
RU2011147471A
RU2011147471A RU2011147471/02A RU2011147471A RU2011147471A RU 2011147471 A RU2011147471 A RU 2011147471A RU 2011147471/02 A RU2011147471/02 A RU 2011147471/02A RU 2011147471 A RU2011147471 A RU 2011147471A RU 2011147471 A RU2011147471 A RU 2011147471A
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RU
Russia
Prior art keywords
furnace
slab
continuous casting
maintaining
hydrogen
Prior art date
Application number
RU2011147471/02A
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Russian (ru)
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RU2493925C2 (en
Inventor
Кристиан КЛИНКЕНБЕРГ
Кристиан БИЛЬГЕН
Тильманн БЕХЕР
Лук НОЙМАНН
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Смс Зимаг Аг
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Publication of RU2011147471A publication Critical patent/RU2011147471A/en
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Publication of RU2493925C2 publication Critical patent/RU2493925C2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B21B2045/006—Heating the product in vacuum or in inert atmosphere

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)

Abstract

1. Способ непрерывного литья сляба (1), в частности, из стали, в котором литой сляб (1) направляют через печь (2) и в котором сляб (1) подвергают операции удаления окалины, при этом по меньшей мере на одном участке (3) печи (2) поверхность сляба подвергают восстановлению тем, что на участке (3) печи (2) поддерживают атмосферу, которая состоит из инертного газа и водорода (Н) или из чистого водорода (Н), отличающийся тем, что в направлении (F) транспортировки перед и/или после по меньшей мере одного участка (3) печи (2) с восстановительной атмосферой расположен примыкающий участок (4) печи (2), в котором поверхность сляба подвергают окислению.2. Способ по п.1, отличающийся тем, что содержание водорода (Н) составляет между 3% и 99,5%.3. Способ по п.2, отличающийся тем, что содержание кислорода составляет между 5% и 50%.4. Способ по любому из пп.1-3, отличающийся тем, что инертным газом является азот (N).5. Способ по любому из пп.1-3, отличающийся тем, что инертным газом является аргон (Ar).6. Способ по любому из пп.1-3, отличающийся тем, что участок печи с окислительной атмосферой содержит по меньшей мере частично кислород (О).7. Способ по любому из пп.1-3, отличающийся тем, что нагревание сляба (1) в печи (2) выполняют за счет индукции.8. Способ по любому из пп.1-3, отличающийся тем, что непрерывную отливку заготовки выполняют в виде процесса разливки и прокатки.9. Способ по п.8, отличающийся тем, что нагревание сляба (1) выполняют в направлении (F) транспортировки после процесса разливки и перед процессом прокатки.10. Способ по любому из пп.1-3, отличающийся тем, что транспортировку сляба (1) выполняют непрерывно.11. Устройство для непрерывного литья сляба (1), которое содержит печь (2)1. The method of continuous casting of a slab (1), in particular of steel, in which a cast slab (1) is sent through a furnace (2) and in which the slab (1) is subjected to descaling, at least in one section ( 3) the furnace (2) the surface of the slab is subjected to restoration by the fact that in the area (3) of the furnace (2) an atmosphere is maintained, which consists of inert gas and hydrogen (H) or pure hydrogen (H), characterized in that in the direction ( F) transportation before and / or after at least one portion (3) of the furnace (2) with a reducing atmosphere is located rimykayuschy portion (4) of the furnace (2), in which the slab surface is subjected okisleniyu.2. The method according to claim 1, characterized in that the hydrogen content (H) is between 3% and 99.5%. The method according to claim 2, characterized in that the oxygen content is between 5% and 50%. A method according to any one of claims 1 to 3, characterized in that the inert gas is nitrogen (N). A method according to any one of claims 1 to 3, characterized in that the inert gas is argon (Ar) .6. A method according to any one of claims 1 to 3, characterized in that the portion of the furnace with an oxidizing atmosphere contains at least partially oxygen (O). A method according to any one of claims 1 to 3, characterized in that the heating of the slab (1) in the furnace (2) is carried out by induction. A method according to any one of claims 1 to 3, characterized in that the continuous casting of the preform is carried out in the form of a casting and rolling process. The method according to claim 8, characterized in that the heating of the slab (1) is performed in the direction (F) of transportation after the casting process and before the rolling process. The method according to any one of claims 1 to 3, characterized in that the transportation of the slab (1) is performed continuously. A device for continuous casting of a slab (1), which contains a furnace (2)

Claims (17)

1. Способ непрерывного литья сляба (1), в частности, из стали, в котором литой сляб (1) направляют через печь (2) и в котором сляб (1) подвергают операции удаления окалины, при этом по меньшей мере на одном участке (3) печи (2) поверхность сляба подвергают восстановлению тем, что на участке (3) печи (2) поддерживают атмосферу, которая состоит из инертного газа и водорода (Н2) или из чистого водорода (Н2), отличающийся тем, что в направлении (F) транспортировки перед и/или после по меньшей мере одного участка (3) печи (2) с восстановительной атмосферой расположен примыкающий участок (4) печи (2), в котором поверхность сляба подвергают окислению.1. The method of continuous casting of a slab (1), in particular of steel, in which a cast slab (1) is sent through a furnace (2) and in which the slab (1) is subjected to descaling, at least in one section ( 3) the furnace (2) the surface of the slab is subjected to recovery by the fact that in the area (3) of the furnace (2) an atmosphere is maintained, which consists of inert gas and hydrogen (H 2 ) or pure hydrogen (H 2 ), characterized in that the direction (F) of transport before and / or after at least one section (3) of the furnace (2) with a reducing atmosphere is located an adjacent portion (4) of the furnace (2), in which the surface of the slab is subjected to oxidation. 2. Способ по п.1, отличающийся тем, что содержание водорода (Н2) составляет между 3% и 99,5%.2. The method according to claim 1, characterized in that the hydrogen content (H 2 ) is between 3% and 99.5%. 3. Способ по п.2, отличающийся тем, что содержание кислорода составляет между 5% и 50%.3. The method according to claim 2, characterized in that the oxygen content is between 5% and 50%. 4. Способ по любому из пп.1-3, отличающийся тем, что инертным газом является азот (N2).4. The method according to any one of claims 1 to 3, characterized in that the inert gas is nitrogen (N 2 ). 5. Способ по любому из пп.1-3, отличающийся тем, что инертным газом является аргон (Ar).5. The method according to any one of claims 1 to 3, characterized in that the inert gas is argon (Ar). 6. Способ по любому из пп.1-3, отличающийся тем, что участок печи с окислительной атмосферой содержит по меньшей мере частично кислород (О2).6. The method according to any one of claims 1 to 3, characterized in that the section of the furnace with an oxidizing atmosphere contains at least partially oxygen (O 2 ). 7. Способ по любому из пп.1-3, отличающийся тем, что нагревание сляба (1) в печи (2) выполняют за счет индукции.7. The method according to any one of claims 1 to 3, characterized in that the heating of the slab (1) in the furnace (2) is carried out by induction. 8. Способ по любому из пп.1-3, отличающийся тем, что непрерывную отливку заготовки выполняют в виде процесса разливки и прокатки.8. The method according to any one of claims 1 to 3, characterized in that the continuous casting of the preform is carried out in the form of a casting and rolling process. 9. Способ по п.8, отличающийся тем, что нагревание сляба (1) выполняют в направлении (F) транспортировки после процесса разливки и перед процессом прокатки.9. The method according to claim 8, characterized in that the heating of the slab (1) is performed in the direction (F) of transportation after the casting process and before the rolling process. 10. Способ по любому из пп.1-3, отличающийся тем, что транспортировку сляба (1) выполняют непрерывно.10. The method according to any one of claims 1 to 3, characterized in that the transportation of the slab (1) is performed continuously. 11. Устройство для непрерывного литья сляба (1), которое содержит печь (2), через которую можно проводить сляб (1), при этом имеются средства для удаления окалины, с помощью которых можно удалять окалину с поверхности сляба, отличающееся тем, что печь (2) имеет по меньшей мере два участка (3, 4), при этом имеются средства для поддержания восстановительной атмосферы по меньшей мере на одном участке (3) печи (2) и при этом имеются средства для поддержания окислительной атмосферы по меньшей мере на одном другом участке (4) печи (2).11. A device for continuous casting of a slab (1), which contains a furnace (2) through which it is possible to conduct a slab (1), and there are means for descaling, with which you can remove scale from the surface of the slab, characterized in that the furnace (2) has at least two sections (3, 4), while there are means for maintaining a reducing atmosphere in at least one section (3) of the furnace (2), and there are means for maintaining an oxidizing atmosphere in at least one another section (4) of the furnace (2). 12. Устройство по п.11, отличающееся тем, что средства для поддержания восстановительной атмосферы содержат по меньшей мере один подводящий трубопровод для водорода (Н2).12. The device according to claim 11, characterized in that the means for maintaining the reducing atmosphere contain at least one supply pipe for hydrogen (H 2 ). 13. Устройство по п.12, отличающееся тем, что средства для поддержания восстановительной атмосферы содержат дополнительно по меньшей мере один подводящий трубопровод для инертного газа.13. The device according to p. 12, characterized in that the means for maintaining the reducing atmosphere contain additionally at least one inlet gas supply line. 14. Устройство по любому из пп.11-13, отличающееся тем, что средства для поддержания окислительной атмосферы содержат по меньшей мере один подводящий трубопровод для кислорода (О2).14. The device according to any one of paragraphs.11-13, characterized in that the means for maintaining an oxidizing atmosphere contain at least one supply pipe for oxygen (O 2 ). 15. Устройство по любому из пп.11-13, отличающееся тем, что печь (2) является муфельной печью.15. Device according to any one of paragraphs.11-13, characterized in that the furnace (2) is a muffle furnace. 16. Устройство по любому из пп.11-13, отличающееся тем, что участки (3, 4) печи образованы стальными трубами.16. Device according to any one of paragraphs.11-13, characterized in that the sections (3, 4) of the furnace are formed by steel pipes. 17. Устройство по любому из пп.11-13, отличающееся тем, что печь (2) содержит индуктивные нагревательные средства. 17. The device according to any one of paragraphs.11-13, characterized in that the furnace (2) contains inductive heating means.
RU2011147471/02A 2009-04-23 2010-04-19 Method and device for continuous slab forming RU2493925C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009018683.2 2009-04-23
DE102009018683A DE102009018683A1 (en) 2009-04-23 2009-04-23 Method and device for continuous casting of a slab
PCT/EP2010/002369 WO2010121763A1 (en) 2009-04-23 2010-04-19 Process and apparatus for the continuous casting of a slab

Publications (2)

Publication Number Publication Date
RU2011147471A true RU2011147471A (en) 2013-05-27
RU2493925C2 RU2493925C2 (en) 2013-09-27

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RU2011147471/02A RU2493925C2 (en) 2009-04-23 2010-04-19 Method and device for continuous slab forming

Country Status (9)

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US (1) US20120043049A1 (en)
EP (1) EP2421664A1 (en)
KR (1) KR20110128917A (en)
CN (1) CN102413954A (en)
BR (1) BRPI1013849A2 (en)
DE (1) DE102009018683A1 (en)
RU (1) RU2493925C2 (en)
UA (1) UA100634C2 (en)
WO (1) WO2010121763A1 (en)

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Publication number Publication date
BRPI1013849A2 (en) 2019-09-24
DE102009018683A1 (en) 2010-10-28
RU2493925C2 (en) 2013-09-27
WO2010121763A1 (en) 2010-10-28
KR20110128917A (en) 2011-11-30
US20120043049A1 (en) 2012-02-23
EP2421664A1 (en) 2012-02-29
UA100634C2 (en) 2013-01-10
CN102413954A (en) 2012-04-11

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