EP1725347B1 - Verfahren zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt - Google Patents

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

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Publication number
EP1725347B1
EP1725347B1 EP06723198A EP06723198A EP1725347B1 EP 1725347 B1 EP1725347 B1 EP 1725347B1 EP 06723198 A EP06723198 A EP 06723198A EP 06723198 A EP06723198 A EP 06723198A EP 1725347 B1 EP1725347 B1 EP 1725347B1
Authority
EP
European Patent Office
Prior art keywords
casting
sio
steel
slab
reduction
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.)
Not-in-force
Application number
EP06723198A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1725347A1 (de
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 Siemag 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 Siemag AG filed Critical SMS Siemag AG
Publication of EP1725347A1 publication Critical patent/EP1725347A1/de
Application granted granted Critical
Publication of EP1725347B1 publication Critical patent/EP1725347B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 process for the production of a hot strip of a good cold-workable, high-strength, austenitic lightweight steel with increased levels of manganese (Mn), aluminum (Al) and silicon (Si) with TWIP properties ( Tw inning I nduced P lasticity)
  • Mn manganese
  • Al aluminum
  • Si silicon
  • TWIP properties Tw inning I nduced P lasticity
  • DE 199 00 199 A1 is 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 described further alloying elements N, Va, Nb, Ti, P, 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 From the WO 02/101109 A1 a method is known, after by increasing the possible carbon content (C ⁇ 1%) and by adding further elements, especially 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.
  • FIG. 1 An installation for carrying out the method is shown in FIG. 1
  • Micro segregations which are still present in the strand directly after solidification, disappear again during the passage through the intermediate furnace, for example through a roller hearth furnace, before the subsequent roll forming to a large extent by diffusion.
  • the macrosegregations in the middle of the slab are, similar to austenitic stainless steels, adequately compensated during the heavy forming in the hot rolling mill.
  • a suitable casting powder In order to be able to use the technique of potting TWIP high-Mn and Al-content lightweight steel on a thin-slab casting machine according to the invention, it is necessary to use a suitable casting powder.
  • 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 content of the casting powder is alternatively or additionally increased, this increase being carried out up to a basicity (ratio CaO / SiO 2 ) of 0.5-0.7.
  • MnO 2 is more easily reduced by Al of the steel than SiO 2 and thus the SiO 2 is protected from this reduction (from burnup), a further measure of the invention is the addition of MnO 2 to the casting powder.
  • the plant used is a known CSP plant, in which according to the invention the distances between the individual plant parts have been changed so far that the method of the invention with the requirements, directly after the solidification in an intermediate furnace in the flow 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.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
EP06723198A 2005-03-05 2006-03-03 Verfahren zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt Not-in-force EP1725347B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005010243A DE102005010243A1 (de) 2005-03-05 2005-03-05 Verfahren und Anlage zur Herstellung eines Leichtbaustahls mit einem hohen Mangan-Gehalt
PCT/EP2006/001954 WO2006094718A1 (de) 2005-03-05 2006-03-03 Verfahren und anlage zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt

Publications (2)

Publication Number Publication Date
EP1725347A1 EP1725347A1 (de) 2006-11-29
EP1725347B1 true EP1725347B1 (de) 2012-12-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06723198A Not-in-force EP1725347B1 (de) 2005-03-05 2006-03-03 Verfahren zur herstellung eines leichtbaustahls mit einem hohe mangan-gehalt

Country Status (12)

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

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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
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
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
CN106624602A (zh) * 2015-10-28 2017-05-10 丹阳市龙鑫合金有限公司 水堆核电站acp1000用抗振条组件及其生产方法
CN106624603A (zh) * 2015-10-28 2017-05-10 丹阳市龙鑫合金有限公司 Acp1000抗振条组件及其生产方法
CN106653127B (zh) * 2015-10-28 2018-03-23 丹阳市龙鑫合金有限公司 一种acp1000核电站用抗振条组件及其生产方法
CN106624601A (zh) * 2015-10-28 2017-05-10 丹阳市龙鑫合金有限公司 一种核电站用抗振条组件及其生产方法
CN106653128B (zh) * 2015-10-28 2018-03-23 丹阳市龙鑫合金有限公司 Acp1000核电站用抗振条组件及其生产方法
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
CN110238203A (zh) * 2019-06-13 2019-09-17 首钢集团有限公司 一种消除热轧工具钢边部翘皮的方法
CN110819908B (zh) * 2019-11-18 2021-03-23 燕山大学 一种高强低密度奥氏体钢及其制备方法
CN112391571A (zh) * 2020-11-25 2021-02-23 攀钢集团西昌钢钒有限公司 一种高强高铝高锰钢洁净度的控制方法
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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Also Published As

Publication number Publication date
EP1725347A1 (de) 2006-11-29
RU2335358C2 (ru) 2008-10-10
JP2008531292A (ja) 2008-08-14
KR101153735B1 (ko) 2012-06-08
JP4688890B2 (ja) 2011-05-25
UA80237C2 (en) 2007-08-27
TW200700566A (en) 2007-01-01
US20080164003A1 (en) 2008-07-10
DE102005010243A1 (de) 2006-09-07
CN101160183B (zh) 2011-07-06
CN101160183A (zh) 2008-04-09
RU2006136036A (ru) 2008-05-10
ZA200607920B (en) 2008-04-30
KR20070108440A (ko) 2007-11-12
CA2560681A1 (en) 2006-09-14
WO2006094718A1 (de) 2006-09-14

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