RU2009122381A - METHOD FOR PRODUCING TWO-PHASE STEEL OF HIGHER STRENGTH - Google Patents

METHOD FOR PRODUCING TWO-PHASE STEEL OF HIGHER STRENGTH Download PDF

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RU2009122381A
RU2009122381A RU2009122381/02A RU2009122381A RU2009122381A RU 2009122381 A RU2009122381 A RU 2009122381A RU 2009122381/02 A RU2009122381/02 A RU 2009122381/02A RU 2009122381 A RU2009122381 A RU 2009122381A RU 2009122381 A RU2009122381 A RU 2009122381A
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Russia
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steel strip
equal
less
content
conclusion
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RU2009122381/02A
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Russian (ru)
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RU2443787C2 (en
Inventor
Юрген ШПЕР (DE)
Юрген ШПЕР
Торстен МАИВАЛЬД (DE)
Торстен МАИВАЛЬД
Томас ЭВЕРТЦ (DE)
Томас ЭВЕРТЦ
Мануэль ОТТО (DE)
Мануэль ОТТО
Свен ШУЛЬЦ (DE)
Свен ШУЛЬЦ
Ленгеде, (DE)
Ленгеде
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Зальцгиттер Флахшталь Гмбх (De)
Зальцгиттер Флахшталь Гмбх
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Publication of RU2009122381A publication Critical patent/RU2009122381A/en
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    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1222—Hot rolling
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
    • C21D8/1233—Cold rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

1. Способ изготовления холодно- или горячекатаной ленты из двухфазной стали с повышенной прочностью и высокой характеристикой деформируемости, предназначенной, в частности, для автомобилей с облегченной конструкцией, содержащей следующие элементы, вес.%: ! углерод от 0,1 до 0,16 алюминий от 0,02 до 0,05 кремний от 0,40 до 0,60 марганец 1,5 до 2,0 фосфор меньше или равно 0,020 сера меньше или равно 0,003 азот меньше или равно 0,01 ниобий 0,01 ванадий 0,02 ! остальное - железо и присущие стали сопутствующие элементы, а также оптимальная добавка титана, при этом двухфазная структура образуется при непрерывном отжиге, отличающийся тем, что холодно- или горячекатаную стальную ленту нагревают в проходной отжигательной печи за одну стадию до температуры от 820 до 1000°C, предпочтительно от 840 до 1000°C, затем отожженную стальную ленту охлаждают с температуры отжига при скорости от 15 до 30°C/с. ! 2. Способ по п.1, отличающийся тем, что содержание ванадия составляет 0,06%. ! 3. Способ по п.1, отличающийся тем, что содержание ванадия составляет 0,08%. ! 4. Способ по любому из пп.1-3, отличающийся тем, что содержание ниобия составляет 0,02%. ! 5. Способ по любому из пп.1-3, отличающийся тем, что содержание ниобия составляет 0,04%. ! 6. Способ по любому из п.п.1-3, отличающийся тем, что содержание титана меньше или равно 0,01%. ! 7. Способ по п.4, отличающийся тем, что содержание титана меньше или равно 0,01%. ! 8. Способ по п.5, отличающийся тем, что содержание титана меньше или равно 0,01%. ! 9. Способ по любому из пп.1-3, отличающийся тем, что стальную ленту улучшают погружением в расплав. ! 10. Способ по п.4, отличающийся тем, что стальную ленту улучшают погружением в расплав. ! 11. Способ по � 1. A method of manufacturing a cold-or hot-rolled strip from a two-phase steel with increased strength and high deformability, intended, in particular, for vehicles with a lightweight structure containing the following elements, wt.%:! carbon from 0.1 to 0.16 aluminum from 0.02 to 0.05 silicon from 0.40 to 0.60 manganese 1.5 to 2.0 phosphorus less than or equal to 0.020 sulfur less than or equal to 0.003 nitrogen less than or equal to 0 .01 niobium 0.01 vanadium 0.02! the rest is iron and associated elements inherent in steel, as well as the optimal addition of titanium, while a two-phase structure is formed during continuous annealing, characterized in that the cold or hot-rolled steel strip is heated in a continuous annealing furnace in one stage to a temperature of 820 to 1000 ° C preferably 840 to 1000 ° C, then the annealed steel strip is cooled from the annealing temperature at a speed of 15 to 30 ° C / s. ! 2. The method according to claim 1, characterized in that the vanadium content is 0.06%. ! 3. The method according to claim 1, characterized in that the vanadium content is 0.08%. ! 4. A method according to any one of claims 1 to 3, characterized in that the niobium content is 0.02%. ! 5. A method according to any one of claims 1 to 3, characterized in that the niobium content is 0.04%. ! 6. A method according to any one of claims 1 to 3, characterized in that the titanium content is less than or equal to 0.01%. ! 7. The method according to claim 4, characterized in that the titanium content is less than or equal to 0.01%. ! 8. A method according to claim 5, characterized in that the titanium content is less than or equal to 0.01%. ! 9. A method according to any one of claims 1 to 3, characterized in that the steel strip is improved by dipping into the melt. ! 10. A method according to claim 4, characterized in that the steel strip is improved by dipping into the melt. ! 11. Method according to �

Claims (21)

1. Способ изготовления холодно- или горячекатаной ленты из двухфазной стали с повышенной прочностью и высокой характеристикой деформируемости, предназначенной, в частности, для автомобилей с облегченной конструкцией, содержащей следующие элементы, вес.%:1. A method of manufacturing a cold or hot rolled strip of two-phase steel with increased strength and high deformability, intended, in particular, for cars with a lightweight structure containing the following elements, wt.%: углеродcarbon от 0,1 до 0,16from 0.1 to 0.16 алюминийaluminum от 0,02 до 0,05from 0.02 to 0.05 кремнийsilicon от 0,40 до 0,60from 0.40 to 0.60 марганецmanganese 1,5 до 2,01.5 to 2.0 фосфорphosphorus меньше или равно 0,020less than or equal to 0,020 сераsulfur меньше или равно 0,003less than or equal to 0.003 азотnitrogen меньше или равно 0,01less than or equal to 0.01 ниобийniobium 0,010.01 ванадийvanadium 0,020.02
остальное - железо и присущие стали сопутствующие элементы, а также оптимальная добавка титана, при этом двухфазная структура образуется при непрерывном отжиге, отличающийся тем, что холодно- или горячекатаную стальную ленту нагревают в проходной отжигательной печи за одну стадию до температуры от 820 до 1000°C, предпочтительно от 840 до 1000°C, затем отожженную стальную ленту охлаждают с температуры отжига при скорости от 15 до 30°C/с.the rest is iron and associated steel elements, as well as the optimal addition of titanium, while a two-phase structure is formed during continuous annealing, characterized in that the cold or hot rolled steel strip is heated in a continuous annealing furnace in one step to a temperature of from 820 to 1000 ° C , preferably from 840 to 1000 ° C, then the annealed steel strip is cooled from the annealing temperature at a speed of 15 to 30 ° C / s. 2. Способ по п.1, отличающийся тем, что содержание ванадия составляет 0,06%.2. The method according to claim 1, characterized in that the vanadium content is 0.06%. 3. Способ по п.1, отличающийся тем, что содержание ванадия составляет 0,08%.3. The method according to claim 1, characterized in that the vanadium content is 0.08%. 4. Способ по любому из пп.1-3, отличающийся тем, что содержание ниобия составляет 0,02%.4. The method according to any one of claims 1 to 3, characterized in that the niobium content is 0.02%. 5. Способ по любому из пп.1-3, отличающийся тем, что содержание ниобия составляет 0,04%.5. The method according to any one of claims 1 to 3, characterized in that the niobium content is 0.04%. 6. Способ по любому из п.п.1-3, отличающийся тем, что содержание титана меньше или равно 0,01%.6. The method according to any one of claims 1 to 3, characterized in that the titanium content is less than or equal to 0.01%. 7. Способ по п.4, отличающийся тем, что содержание титана меньше или равно 0,01%.7. The method according to claim 4, characterized in that the titanium content is less than or equal to 0.01%. 8. Способ по п.5, отличающийся тем, что содержание титана меньше или равно 0,01%.8. The method according to claim 5, characterized in that the titanium content is less than or equal to 0.01%. 9. Способ по любому из пп.1-3, отличающийся тем, что стальную ленту улучшают погружением в расплав.9. The method according to any one of claims 1 to 3, characterized in that the steel strip is improved by immersion in the melt. 10. Способ по п.4, отличающийся тем, что стальную ленту улучшают погружением в расплав.10. The method according to claim 4, characterized in that the steel strip is improved by immersion in the melt. 11. Способ по п.5, отличающийся тем, что стальную ленту улучшают погружением в расплав.11. The method according to claim 5, characterized in that the steel strip is improved by immersion in the melt. 12. Способ по п.6, отличающийся тем, что стальную ленту улучшают погружением в расплав.12. The method according to claim 6, characterized in that the steel strip is improved by immersion in the melt. 13. Способ по п.7 или 8, отличающийся тем, что стальную ленту улучшают погружением в расплав.13. The method according to claim 7 or 8, characterized in that the steel strip is improved by immersion in the melt. 14. Способ по любому из пп.1-3, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.14. The method according to any one of claims 1 to 3, characterized in that in conclusion, the steel strip is subjected to training. 15. Способ по п.4, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.15. The method according to claim 4, characterized in that in conclusion, the steel strip is subjected to training. 16. Способ по п.5, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.16. The method according to claim 5, characterized in that in conclusion, the steel strip is subjected to training. 17. Способ по п.6, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.17. The method according to claim 6, characterized in that in conclusion, the steel strip is subjected to training. 18. Способ по п.7 или 8, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.18. The method according to claim 7 or 8, characterized in that in conclusion, the steel strip is subjected to training. 19. Способ по п.9, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.19. The method according to claim 9, characterized in that in conclusion, the steel strip is subjected to training. 20. Способ по любому из пп.10-12, отличающийся тем, что в заключение стальную ленту подвергают дрессировке.20. The method according to any one of paragraphs.10-12, characterized in that in conclusion, the steel strip is subjected to training. 21. Способ по п.13, отличающийся тем, что в заключение стальную ленту подвергают дрессировке. 21. The method according to item 13, characterized in that in conclusion, the steel strip is subjected to training.
RU2009122381/02A 2006-11-14 2007-11-13 Method for obtaining strip from duplex steel of increased strength RU2443787C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006054300.9 2006-11-14
DE102006054300A DE102006054300A1 (en) 2006-11-14 2006-11-14 High-strength dual-phase steel with excellent forming properties

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RU2009122381A true RU2009122381A (en) 2010-12-20
RU2443787C2 RU2443787C2 (en) 2012-02-27

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US (1) US20100000634A1 (en)
EP (1) EP2094876B1 (en)
KR (1) KR20090089311A (en)
DE (1) DE102006054300A1 (en)
RU (1) RU2443787C2 (en)
WO (1) WO2008058530A1 (en)

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EP2094876A1 (en) 2009-09-02
WO2008058530A1 (en) 2008-05-22
US20100000634A1 (en) 2010-01-07
RU2443787C2 (en) 2012-02-27
DE102006054300A1 (en) 2008-05-15
KR20090089311A (en) 2009-08-21
EP2094876B1 (en) 2014-04-16

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