BRPI0419185A - chapa ou fita de aço de resistência superior, apresentando propriedades twip, e processo para sua fabricação por meio de "direct strip casting" - Google Patents

chapa ou fita de aço de resistência superior, apresentando propriedades twip, e processo para sua fabricação por meio de "direct strip casting"

Info

Publication number
BRPI0419185A
BRPI0419185A BRPI0419185-4A BRPI0419185A BRPI0419185A BR PI0419185 A BRPI0419185 A BR PI0419185A BR PI0419185 A BRPI0419185 A BR PI0419185A BR PI0419185 A BRPI0419185 A BR PI0419185A
Authority
BR
Brazil
Prior art keywords
tape
sum
contents
strip
manufacture
Prior art date
Application number
BRPI0419185-4A
Other languages
English (en)
Inventor
Jens-Ulrik Becker
Harald Hofmann
Manfred Menne
Jochen Wans
Original Assignee
Thyssenkrupp Steel 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 Thyssenkrupp Steel Ag filed Critical Thyssenkrupp Steel Ag
Publication of BRPI0419185A publication Critical patent/BRPI0419185A/pt

Links

Classifications

    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

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)
  • Heat Treatment Of Sheet Steel (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)

Abstract

CHAPA OU FITA DE AçO DE RESISTêNCIA SUPERIOR, APRESENTANDO PROPRIEDADES TWIP, E PROCESSO PARA SUA FABRICAçãO POR MEIO DE DIRECT STRIP CASTING. A presente invenção refere-se a um processo para fabricação de fitas ou chapas de aço deformáveis a frio, de resistência superior, com propriedades TWIP, em que em etapas de trabalho que se sucedem sem interrupção, uma massa fundida da seguinte composição (% em peso): C: 0,003 - 1,50 %, Mn: 18,00 -30,00 %, Ni: <243> 10,00 %, Si: <243>8,00 %, Al: <243> 10,00 %, Cr: <243> 10,00 %, N: <243>0,60 %, Cu: <243> 3,00 %, P: <243> 0,40 %, 5: <243> 0,15 %, opcionalmente um ou vários elementos do grupo Se, Te, V, Ti, Bn, B, REM, Mo, W, Co, Ca e Mg, com a condição de que a soma dos teores de Se, Te seja <243> 0,25 %, a soma dos teores de V, Ti, Nb, B, REM seja <243> 4,00 %, a soma dos teores de Mo, W, Co seja <243> 1,50 % e a soma dos teores de Ca, Mg seja <243>0,50 %, contendo de resto ferro bem como impurezas condicionadas pela fusão, sendo que os teores de Sn, Sb, Zr, Ta e As, cuja soma não ultrapassa 0,30 %, são acrescentados a essas impurezas, é aplicada sobre uma cinta transportadora e ali resfriada até compactar para uma pré-fita, a pré-fita é extraída da cinta transportadora, a pré-fita extraída se necessário é submetida a um tratamento térmico, a pré-fita é laminada a quente a uma temperatura final de laminação a quente importando em ao menos 700<198>C para uma fita quente com uma textura completamente recristalizada, e a fita quente é bobinada a uma temperatura de bobinagem importando em até 750<198>C.
BRPI0419185-4A 2004-11-03 2004-11-03 chapa ou fita de aço de resistência superior, apresentando propriedades twip, e processo para sua fabricação por meio de "direct strip casting" BRPI0419185A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/012407 WO2006048034A1 (de) 2004-11-03 2004-11-03 Höherfestes, twip-eigenschaften aufweisendes stahlband oder -blech und verfahren zu dessen herstellung mittels “direct strip casting '

Publications (1)

Publication Number Publication Date
BRPI0419185A true BRPI0419185A (pt) 2007-12-18

Family

ID=34959180

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0419185-4A BRPI0419185A (pt) 2004-11-03 2004-11-03 chapa ou fita de aço de resistência superior, apresentando propriedades twip, e processo para sua fabricação por meio de "direct strip casting"

Country Status (6)

Country Link
US (1) US20090010793A1 (pt)
EP (1) EP1807542A1 (pt)
JP (1) JP2008519160A (pt)
CN (1) CN101065503A (pt)
BR (1) BRPI0419185A (pt)
WO (1) WO2006048034A1 (pt)

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JP2008519160A (ja) 2008-06-05

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