RU2019107479A - Способ изготовления горячей или холодной полосы и/или гибко-катаного плоского стального продукта из высокопрочной марганцевой стали и плоский стальной продукт, изготовленный таким способом - Google Patents

Способ изготовления горячей или холодной полосы и/или гибко-катаного плоского стального продукта из высокопрочной марганцевой стали и плоский стальной продукт, изготовленный таким способом Download PDF

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RU2019107479A
RU2019107479A RU2019107479A RU2019107479A RU2019107479A RU 2019107479 A RU2019107479 A RU 2019107479A RU 2019107479 A RU2019107479 A RU 2019107479A RU 2019107479 A RU2019107479 A RU 2019107479A RU 2019107479 A RU2019107479 A RU 2019107479A
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temperature
rolling
strip
hot
flat steel
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RU2019107479A
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RU2019107479A3 (ru
RU2749270C2 (ru
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Петер ПАЛЬЦЕР
Томас ЭФЕРЦ
Манюль ОТТО
Кай КЁЛЕР
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Зальцгиттер Флахшталь Гмбх
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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
    • C21D8/02—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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
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    • C21D6/00—Heat treatment of ferrous alloys
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    • C—CHEMISTRY; METALLURGY
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    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
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    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
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    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0231—Warm rolling
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    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
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    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
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    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
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    • 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
    • C21D8/0294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a localised treatment
    • 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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0436—Cold rolling
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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Claims (43)

1. Способ изготовления гибко-катаного плоского стального продукта с конечной толщиной, требуемой в сечениях, и состоящего из высокопрочной стали с содержанием марганца, содержащий этапы:
предоставление горячей полосы или холодной полосы, оцинкованной или неоцинкованной, c составом сплава (в вес.%): С: 0,0005 до 0,9; Mn: 4 до 12; Al: до 10; Р: <0,1; S: <0,1; N <0,1; при этом остаток – железо с неизбежными сопутствующими стали элементами, при легировании в качестве опции одним или несколькими из следующих элементов (в вес.%): Si: до 6; Cr: до 6; Nb: до 1; V: до 1,5; Ti: до 1,5; Mo: до 3; Sn: до 0,5; Cu: до 3; W: до 5; Co: до 8; Zr: до 0,5; Ta: до 0,5; Te: до 0,5; B: до 1,5,
прокатка гибким способом горячей полосы или холодной полосы на этапе прокатки или на множестве этапов прокатки до конечных толщин, требуемых в сечениях, при температуре горячей полосы или холодной полосы от 60°C до температуры ниже температуры Ac3, предпочтительно 60-450°С, до первого этапа прокатки,
в качестве опции оцинковка еще не оцинкованного плоского стального продукта, полученного таким образом.
2. Способ по п.1, отличающийся тем, что горячую полосу или холодную полосу предварительно нагревают, до первого этапа прокатки, до температуры от 60°С до ниже температуры Ас3, предпочтительно 60-450°С.
3. Способ по п.1 или 2, отличающийся тем, что, за исключением первого этапа прокатки, горячую полосу или холодную полосу подвергают прокатке гибким способом на следующих этапах прокатки при одинаковых или разных температурах горячей полосы или холодной полосы от комнатной температуры до температуры ниже температуры Ac3, предпочтительно при комнатной температуре до температуры ниже 450°C.
4. Способ по п.1 или 2, отличающийся тем, что горячую полосу или холодную полосу подвергают прокатке гибким способом на первом этапе прокатки и на следующих этапах прокатки при одинаковых температурах горячей полосы или холодной полосы, от 60°C до температуры ниже температуры Ac3, преимущественно при 60°С до температуры ниже 450°C.
5. Способ по любому из пп. 1-4, отличающийся тем, что при множестве требуемых этапов прокатки после первого этапа прокатки с предварительным нагревом последний этап прокатки или множество последних этапов прокатки в качестве опции выполняются при температурах от - 100 до 60°С.
6. Способ по п.5, отличающийся тем, что температура влияет на плоский стальной продукт локально ограниченным образом.
7. Способ по любому из пп. 1-6, отличающийся тем, что плоский стальной продукт получают со следующим составом сплава в вес.%:
C: 0,05 до 0,35
Mn: > 5 до < 10
Al: 0,05 до 5 в частности > 0,5 до 3
8. Способ по любому из пп. 1-7, отличающийся тем, что плоский стальной продукт получают со следующим составом сплава в вес.%:
Si: 0,05-3, предпочтительно 0,1-1,5
Cr: 0,1-4, предпочтительно > 0,5-2,5
Nb: 0,005-0,4, предпочтительно 0,01-0,1
V: 0,005-0,6, предпочтительно 0,01-0,3
Ti: 0,005-0,6, предпочтительно 0,01-0,3
Mo: 0,005-1,5, предпочтительно 0,01-0,6
Sn: < 0,2, предпочтительно < 0,05
Cu: < 0,5, предпочтительно < 0,1
W: 0-5, 0,01-3, предпочтительно 0,2-1,5
Co: 0,01-5, предпочтительно 0,3-2
Zr: 0,005-0,3, предпочтительно 0,01-0,2
Ta: 0,005-0,3, предпочтительно 0,01-0,1
Te: 0,005-0,3, предпочтительно 0,01-0,1
B: 0,001-0,08, предпочтительно 0,002-0,01
9. Способ получения горячей полосы или холодной полосы для изготовления гибко-катаного плоского стального продукта по пп. 1-8, содержащий этапы:
выплавка стального расплава, имеющего состав сплава по любому из пп. 1, 7 и 8 посредством технологического маршрута, при доменном или электродуговом процессе, с вакуумной обработкой расплава в качестве опции,
литье стального расплава с получением пред-полосы посредством процесса горизонтального или вертикального литья полосы с приближением к конечным размерам, или литье стального расплава с получением сляба или тонкого сляба посредством процесса горизонтального или вертикального литья сляба или тонкого сляба,
нагрев пред-полосы или сляба или тонкого сляба до температуры 1050-1250°C или прокатка без повторного нагрева от тепла литья (первый нагрев),
горячая прокатка до однородной конечной толщины 20-0,8 мм при конечной температуре прокатки 1050-800°С,
намотка горячей полосы при температуре намотки от более 100°C до 800°C;
кислотная очистка горячей полосы,
отжиг горячей полосы при температуре 500-840°С, при продолжительности отжига от 1 мин до 24 ч при процессе непрерывного или пакетного отжига,
в качестве опции, холодная прокатка горячей полосы до однородной конечной толщины при комнатной температуре или повышенной температуре за один или множество проходов прокатки,
в качестве опции, отжиг холоднокатаной горячей полосы при температуре 500-840°С при продолжительности отжига от 1 мин до 24 ч при процессе непрерывного или пакетного отжига,
в качестве опции, оцинковка горячей полосы или холодной полосы электролитическим способом или горячим погружением, или нанесение иного металлического, органического или неорганического покрытия до или после прокатки гибким способом.
10. Способ по п.9, отличающийся тем, что холодную прокатку выполняют при температуре, до первого этапа прокатки, от 60°С до температуры ниже температуры Ac3, предпочтительно 60-450°С, и нагрев или охлаждение выполняют между проходами прокатки до температуры от 60°С до ниже температуры Ac3, предпочтительно 60-450°С.
11. Гибко-катаный плоский стальной продукт, изготовленный в соответствии со способом по любому из пп. 1-10, отличающийся тем, что плоский стальной продукт имеет прочность на разрыв Rm от более 1000 МПа до 2000 МПа и удлинение при разрушении A50 от более 3% до 45%.
12. Гибко-катаный плоский стальной продукт по п.11, отличающийся тем, что плоский стальной продукт подвергают оцинковке горячим погружением или электролитическим способом или на него наносят металлическое, неорганическое или органическое покрытие.
13. Применение плоского стального продукта по пп.11 и 12 для применения в автомобильной промышленности, сельскохозяйственном машиностроении, строительстве железнодорожного транспорта, дорожном деле, в бытовой технике или в качестве тонколистовых сварных составных заготовок.
RU2019107479A 2016-09-16 2017-09-12 Способ изготовления горячей или холодной полосы и/или гибко-катаного плоского стального продукта из высокопрочной марганцевой стали и плоский стальной продукт, изготовленный таким способом RU2749270C2 (ru)

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