WO2006094718A1 - Verfahren und anlage zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt - Google Patents

Verfahren und anlage zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt Download PDF

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Publication number
WO2006094718A1
WO2006094718A1 PCT/EP2006/001954 EP2006001954W WO2006094718A1 WO 2006094718 A1 WO2006094718 A1 WO 2006094718A1 EP 2006001954 W EP2006001954 W EP 2006001954W WO 2006094718 A1 WO2006094718 A1 WO 2006094718A1
Authority
WO
WIPO (PCT)
Prior art keywords
casting
slab
slabs
casting powder
furnace
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.)
Ceased
Application number
PCT/EP2006/001954
Other languages
German (de)
English (en)
French (fr)
Inventor
Jens Kempken
Markus Reifferscheid
Albrecht Girgensohn
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.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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
Application filed by SMS Demag AG filed Critical SMS Demag AG
Priority to UAA200611050A priority Critical patent/UA80237C2/uk
Priority to KR1020067018434A priority patent/KR101153735B1/ko
Priority to CA002560681A priority patent/CA2560681A1/en
Priority to US11/666,535 priority patent/US20080164003A1/en
Priority to EP06723198A priority patent/EP1725347B1/de
Priority to CN2006800071903A priority patent/CN101160183B/zh
Priority to JP2007557433A priority patent/JP4688890B2/ja
Publication of WO2006094718A1 publication Critical patent/WO2006094718A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B21B1/466—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 in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/111—Treating the molten metal by using protecting powders
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1213—Accessories for subsequent treating or working cast stock in situ for heating or insulating strands
    • 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
    • B22D11/142—Plants for continuous casting for curved 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
    • C21D6/00—Heat treatment of ferrous alloys
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting

Definitions

  • the invention relates to a method and a plant for producing a hot strip of a good cold-workable, high-strength, austenitic lightweight steel with increased levels of manganese (Mn), aluminum (AI) and SiIi- zium (Si) with TWIP properties (Twinning-induced Plasticity) in which the steel is first cast on a continuous casting plant to a continuous strand, divided into slabs and then rolled to the final thickness.
  • Mn manganese
  • AI aluminum
  • TWIP properties winning-induced Plasticity
  • Austenitic lightweight steels with TWIP properties for use in, for example, body panel parts, stiffening body elements, as well as cryo gen-containers and pipes have, for example, according to EP 0889144 B1 a chemical composition of 10 to 30% Mn, 1 to 6% Si 1 1 up to 8% Al (with Si + Al ⁇ 12%), balance Fe.
  • a high-strength lightweight steel with 7 to 30% Mn, 1 to 10% Al, 0.7 to 4% Si, ⁇ 10% Cr, ⁇ 10% Ni, ⁇ 3% Cu and ⁇ 0, 5% C and optionally with the other alloying elements N 1 Va 1 Nb 1 Ti, P described, which in addition to good mechanical properties also has good corrosion and stress corrosion cracking resistance.
  • This steel is to be cast in a continuous casting process and hot rolled or slotted close to the final dimensions by thin strip casting.
  • WO 02/101109 A1 discloses a process according to which, by increasing the possible carbon content (C ⁇ 1%) and by adding further elements, here in particular B, also Ni, Cu, N, Nb, Ti, V, P, a significant reduction of the yield strength and thus an improvement in ductility during hot and cold rolling is achieved.
  • a starting material (slab, thin slab or strip) is heated and hot rolled and coiled under consideration of certain temperature limits.
  • EP 1 067 203 B1 discloses a process for the production of strips of an Fe-C-Mn alloy, in which initially a thin steel strip having a thickness of between 1.5 and 10 mm and having the composition: 6 to 30% Mn, 0.001 to 1, 6% C, ⁇ 2.5% Si, ⁇ 6% Al 1 ⁇ 10% Cr and other elements produced on a two-roller casting machine and this then with a degree of reduction between 10 and 60% in one or several steps hot rolled.
  • the stated object is procedurally achieved with the characterizing features of claim 1, characterized in that by successively arranged process steps a lightweight steel with the predetermined chemical composition of 15 to 27% Mn, 1 to 6% Al 1 1 to 6% Si, ⁇ 0.8 % C, 5 remainder Fe and accompanying elements
  • An installation for carrying out the method is characterized by the features of claim 7.
  • roller hearth furnace of a CSP plant due to the short lead times greater depletion of the alloying elements or the oxidation of the grain boundaries avoided, which is difficult, for example, in the longer heating phases in the blast furnace of a conventional hot strip mill in the prior art can lead.
  • a suitable casting powder is required.
  • Such a suitable casting powder according to the invention has the property of achieving equilibrium very quickly and then no longer changing its lubricating behavior.
  • the casting powder according to the invention contains an increased proportion of Al 2 O 3 of> 10%.
  • the SiO 2 proportion of the casting powder is alternatively or additionally increased, this increase being carried out up to a basicity (ratio CaOZSiO 2 ) of 0.5-0.7.
  • MnO 2 is more easily reduced by the Al of the steel than SiO 2 and thereby the SiO 2 is protected from this reduction (from burnup), it is possible to add MnO 2 to the casting powder as a further measure of the invention. Even a partial replacement of the SiO 2 by TiO 2 , which acts like SiO 2 glass-forming, but is not attacked (reduced) by the Al of the steel, may be added to the casting powder according to the invention.
  • the plant used is a known CSP plant in which, according to the invention, the distances between the individual plant components have been changed so far that the method of the invention with the requirements, directly after the solidification in an intermediate furnace in the course of a temperature compensation bring about and then hot roll the slab directly without interim cooling, is feasible.
  • the plant shown in the drawing figure therefore consists of a thin slab caster 1 and a downstream intermediate furnace 4, in which the divided from the endless strand 2 after its solidification slab 3 is introduced.

Landscapes

  • 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)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
PCT/EP2006/001954 2005-03-05 2006-03-03 Verfahren und anlage zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt Ceased WO2006094718A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
UAA200611050A UA80237C2 (en) 2005-03-05 2006-03-03 Process and device for producing a strip from steel for lightweight structures with high content of manganese
KR1020067018434A KR101153735B1 (ko) 2005-03-05 2006-03-03 높은 망간 함량을 함유하는 경량 구조용강의 제조 방법 및시스템
CA002560681A CA2560681A1 (en) 2005-03-05 2006-03-03 Method and installation for producing light gauge steel with a high manganese content
US11/666,535 US20080164003A1 (en) 2005-03-05 2006-03-03 Method and Installation for Producing Light Gauge Steel with a High Manganese Content
EP06723198A EP1725347B1 (de) 2005-03-05 2006-03-03 Verfahren zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt
CN2006800071903A CN101160183B (zh) 2005-03-05 2006-03-03 具有高锰含量的轻质结构钢的生产方法
JP2007557433A JP4688890B2 (ja) 2005-03-05 2006-03-03 マンガン含有量の多い軽量鋼を製造するための方法及び設備

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005010243.3 2005-03-05
DE102005010243A DE102005010243A1 (de) 2005-03-05 2005-03-05 Verfahren und Anlage zur Herstellung eines Leichtbaustahls mit einem hohen Mangan-Gehalt

Publications (1)

Publication Number Publication Date
WO2006094718A1 true WO2006094718A1 (de) 2006-09-14

Family

ID=36218445

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/001954 Ceased WO2006094718A1 (de) 2005-03-05 2006-03-03 Verfahren und anlage zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt

Country Status (12)

Country Link
US (1) US20080164003A1 (enExample)
EP (1) EP1725347B1 (enExample)
JP (1) JP4688890B2 (enExample)
KR (1) KR101153735B1 (enExample)
CN (1) CN101160183B (enExample)
CA (1) CA2560681A1 (enExample)
DE (1) DE102005010243A1 (enExample)
RU (1) RU2335358C2 (enExample)
TW (1) TW200700566A (enExample)
UA (1) UA80237C2 (enExample)
WO (1) WO2006094718A1 (enExample)
ZA (1) ZA200607920B (enExample)

Cited By (2)

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CN101543837B (zh) * 2008-03-24 2012-02-29 宝山钢铁股份有限公司 一种Fe-Mn-C系高锰钢薄带连铸连轧制造方法
CN106271449A (zh) * 2016-08-31 2017-01-04 云南德胜钢铁有限公司 一种采用钢坯生产细晶粒盘螺钢筋的工艺

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DE102008005806A1 (de) * 2008-01-17 2009-09-10 Technische Universität Bergakademie Freiberg Bauteile aus hochmanganhaltigem, festem und zähem Stahlformguss, Verfahren zu deren Herstellung sowie deren Verwendung
EP2257394B1 (en) * 2008-01-30 2018-11-07 Tata Steel IJmuiden BV Method of producing a hot-rolled twip-steel and a twip-steel product produced thereby
DE102009030324A1 (de) * 2009-06-24 2011-01-05 Voestalpine Stahl Gmbh Manganstahl und Verfahren zur Herstellung desselben
DE102010034161B4 (de) * 2010-03-16 2014-01-02 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung von Werkstücken aus Leichtbaustahl mit über die Wanddicke einstellbaren Werkstoffeigenschaften
CN104328360B (zh) * 2014-11-20 2017-02-22 北京科技大学 双相孪生诱导塑性超高强度汽车钢板及其制备工艺
CN104711494B (zh) * 2015-04-14 2017-11-28 钢铁研究总院 低密度高塑性NiAl增强超高强度钢及制备方法
CN106480366A (zh) * 2015-08-31 2017-03-08 鞍钢股份有限公司 一种高等轴晶率高锰钢钢锭及其冶炼方法
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CN112760568B (zh) * 2020-12-25 2022-02-25 钢铁研究总院 一种高强度高塑性低密度钢及其制备方法
CN115106490B (zh) * 2021-03-19 2024-06-04 宝山钢铁股份有限公司 连铸生产用中空颗粒型开浇渣及其制备方法
CN115058661A (zh) * 2022-06-17 2022-09-16 湖南华菱涟源钢铁有限公司 一种高碳高锰钢板及其生产方法
CN116083812B (zh) * 2023-01-05 2025-05-20 武钢集团昆明钢铁股份有限公司 一种轻质高强免退火螺栓母材及其制备方法
CN116287975A (zh) * 2023-01-09 2023-06-23 鞍钢股份有限公司 一种高熵钢及制造方法
CN118756059A (zh) * 2024-06-07 2024-10-11 珠海东方重工股份有限公司 一种原位内生氧化铝纳米颗粒强化Fe-Mn-Al-C系低密度高强度钢的制备方法

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CN101543837B (zh) * 2008-03-24 2012-02-29 宝山钢铁股份有限公司 一种Fe-Mn-C系高锰钢薄带连铸连轧制造方法
CN106271449A (zh) * 2016-08-31 2017-01-04 云南德胜钢铁有限公司 一种采用钢坯生产细晶粒盘螺钢筋的工艺

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US20080164003A1 (en) 2008-07-10
RU2006136036A (ru) 2008-05-10
DE102005010243A1 (de) 2006-09-07
JP2008531292A (ja) 2008-08-14
KR101153735B1 (ko) 2012-06-08
EP1725347A1 (de) 2006-11-29
EP1725347B1 (de) 2012-12-26
CN101160183B (zh) 2011-07-06
KR20070108440A (ko) 2007-11-12
CN101160183A (zh) 2008-04-09
TW200700566A (en) 2007-01-01
UA80237C2 (en) 2007-08-27
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