WO2011114227A3 - Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same - Google Patents

Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same Download PDF

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Publication number
WO2011114227A3
WO2011114227A3 PCT/IB2011/000582 IB2011000582W WO2011114227A3 WO 2011114227 A3 WO2011114227 A3 WO 2011114227A3 IB 2011000582 W IB2011000582 W IB 2011000582W WO 2011114227 A3 WO2011114227 A3 WO 2011114227A3
Authority
WO
WIPO (PCT)
Prior art keywords
hot
rolling
amount
temperature
strip
Prior art date
Application number
PCT/IB2011/000582
Other languages
French (fr)
Other versions
WO2011114227A2 (en
Inventor
Stefano Cicale
Giuseppe Abbruzzese
Marco Antônio DA CUNHA
Hélcio DE ARAUJO QUINTAO
Ronaldo Claret Ribeiro Silva
Angelo José DE FARIA FONSECA
Original Assignee
Aperam
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 Aperam filed Critical Aperam
Priority to US13/635,743 priority Critical patent/US20130174940A1/en
Priority to BR112012023611A priority patent/BR112012023611A2/en
Priority to EP11717012.6A priority patent/EP2547799B1/en
Publication of WO2011114227A2 publication Critical patent/WO2011114227A2/en
Publication of WO2011114227A3 publication Critical patent/WO2011114227A3/en

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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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • C21D8/0284—Application of a separating or insulating coating
    • 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
    • C21D8/0221—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
    • 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
    • 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
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1261—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest following 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1272—Final recrystallisation annealing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

A method for the production of hot-rolled steel strip comprising the following steps : - providing a steel slab comprising, in weight percentages : Si : 2.5 to 3.5%, C : 0.05 to 0.1 %, Mn : 0:05 to 0.1 %, Als : 0.015 to 0.026%, N : 0.0050 to 0.0100%, and further comprising S and/or Se so that S+ (32/79) Se is in an amount of 0.018 to 0.030 %, and optionally comprising one or more elements chosen among Sb in an amount of 0.015 to 0.035%, Cu in an amount of 0.08% to 0.25%, Sn in an amount of 0.06% to 0.15%, P in an amount of 0.005% to 0.015%, the balance being iron and unavoidable impurities, - reheating said slab to a temperature between 1300°C and 1430°C, - roughing hot-rolling said slab to produce a blank having a thickness below 50 mm, - finishing hot-rolling of said blank to produce a hot rolled strip in three rolling passes or more, the temperature of said blank during the first pass being above 1 150°C and at least one rolling pass being performed with a reduction of 40% or more and being immediately followed by a holding of more than 20 sec, the average interpass holding temperature Tav being settled between 1000 and 1200°C, the total finishing hot rolling time t being controlled so that the value of Tav for any portion of said strip further respects the under mentioned equation : Tav > T1 + α1(t-78) [eq. 1 ] with T1= 992.2 + 1493(Als) and α1=1.204 + 24.9(Als), Tav and being expressed in °C, t in seconds and Als in weight %, - cooling of said hot-rolled strip from the finish rolling temperature to a temperature below 600°C in less than 10 sec and - coiling of said hot-rolled strip.
PCT/IB2011/000582 2010-03-19 2011-03-18 Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same WO2011114227A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/635,743 US20130174940A1 (en) 2010-03-19 2011-03-18 Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same
BR112012023611A BR112012023611A2 (en) 2010-03-19 2011-03-18 METHOD, HOT ROLLING STEEL TAPE AND METHOD FOR THE PRODUCTION OF MAGNETIC TAPEIB
EP11717012.6A EP2547799B1 (en) 2010-03-19 2011-03-18 Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IBPCT/IB2010/000591 2010-03-19
PCT/IB2010/000591 WO2011114178A1 (en) 2010-03-19 2010-03-19 Process for the production of grain oriented electrical steel

Publications (2)

Publication Number Publication Date
WO2011114227A2 WO2011114227A2 (en) 2011-09-22
WO2011114227A3 true WO2011114227A3 (en) 2012-11-22

Family

ID=43064809

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2010/000591 WO2011114178A1 (en) 2010-03-19 2010-03-19 Process for the production of grain oriented electrical steel
PCT/IB2011/000582 WO2011114227A2 (en) 2010-03-19 2011-03-18 Grain oriented steel strip with high magnetic characteristics, and manufacturing process of the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/000591 WO2011114178A1 (en) 2010-03-19 2010-03-19 Process for the production of grain oriented electrical steel

Country Status (4)

Country Link
US (1) US20130174940A1 (en)
EP (1) EP2547799B1 (en)
BR (1) BR112012023611A2 (en)
WO (2) WO2011114178A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054004A1 (en) * 2011-09-28 2013-03-28 Thyssenkrupp Electrical Steel Gmbh Method for producing a grain-oriented electrical tape or sheet intended for electrical applications
JP5938215B2 (en) * 2012-01-12 2016-06-22 サムテック株式会社 Pressure vessel
KR101482354B1 (en) 2012-12-27 2015-01-13 주식회사 포스코 Grain-oriented electrical steel having excellent magnetic properties
CN103695791B (en) * 2013-12-11 2015-11-18 武汉钢铁(集团)公司 A kind of high magnetic induction grain-oriented silicon steel and production method
CN103668005B (en) * 2013-12-12 2015-10-14 武汉钢铁(集团)公司 The HiB steel that in a kind of use, warm slab heating temperature is produced and production method thereof
CZ305521B6 (en) * 2014-05-12 2015-11-11 Arcelormittal Ostrava A.S. Strip of oriented transformer steel and process for producing thereof
KR101642281B1 (en) * 2014-11-27 2016-07-25 주식회사 포스코 Oriented electrical steel sheet and method for manufacturing the same
CN104451378B (en) * 2014-12-03 2017-11-03 武汉钢铁(集团)公司 A kind of orientation silicon steel having excellent magnetic characteristics and production method
CN106435133B (en) * 2016-10-26 2018-12-14 承德建龙特殊钢有限公司 A method of reducing CrMo series rolled bar Brinell hardness
KR102437377B1 (en) 2017-12-28 2022-08-26 제이에프이 스틸 가부시키가이샤 Low iron loss grain-oriented electrical steel sheet and manufacturing method thereof
KR102164329B1 (en) * 2018-12-19 2020-10-12 주식회사 포스코 Grain oriented electrical steel sheet and method for manufacturing therof
EP4276204A4 (en) * 2021-03-04 2024-05-22 JFE Steel Corporation Method for manufacturing directional electromagnetic steel sheet, and hot-rolled steel sheet for directional electromagnetic steel sheet
WO2022186300A1 (en) * 2021-03-04 2022-09-09 Ｊｆｅスチール株式会社 Method for producing grain-oriented electrical steel sheet
WO2024043294A1 (en) * 2022-08-24 2024-02-29 Ｊｆｅスチール株式会社 Method for producing grain-oriented electromagnetic steel sheet, and hot rolled sheet for grain-oriented electromagnetic steel sheet

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287183A (en) * 1964-06-22 1966-11-22 Yawata Iron & Steel Co Process for producing single-oriented silicon steel sheets having a high magnetic induction
US3959033A (en) * 1973-07-23 1976-05-25 Mario Barisoni Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained
EP0193373A2 (en) * 1985-02-25 1986-09-03 Armco Advanced Materials Corporation Method of producing cube-on-edge oriented silicon steel from strand cast slab
EP0400549A2 (en) * 1989-05-29 1990-12-05 Nippon Steel Corporation Process for producing grainoriented electrical steel sheet having superior magnetic and surface film characteristics
EP0648847A1 (en) * 1993-10-19 1995-04-19 Nippon Steel Corporation Production method of grain oriented electrical steel sheet having excellent magnetic characteristics
DE19816158A1 (en) * 1998-04-09 1999-10-14 G K Steel Trading Gmbh Process for the production of grain-oriented anisotropic, electrotechnical steel sheets
US6524400B1 (en) * 1997-10-15 2003-02-25 Thyssen Krupp Stahl Ag Process for the production of grain-oriented electric quality sheet with low remagnetization loss and high polarization
EP2039792A1 (en) * 2006-05-24 2009-03-25 Nippon Steel Corporation Unidirectionally grain oriented electromagnetic steel sheet having excellent iron loss properties

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US48806A (en) 1865-07-18 Improved hydrocarbon-blower for furnaces of steam-boilers
GB873149A (en) 1956-11-08 1961-07-19 Yawata Iron & Steel Co Method of producing oriented silicon steel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287183A (en) * 1964-06-22 1966-11-22 Yawata Iron & Steel Co Process for producing single-oriented silicon steel sheets having a high magnetic induction
US3959033A (en) * 1973-07-23 1976-05-25 Mario Barisoni Process for manufacturing silicon-aluminum steel sheet with oriented grains for magnetic applications, and products thus obtained
EP0193373A2 (en) * 1985-02-25 1986-09-03 Armco Advanced Materials Corporation Method of producing cube-on-edge oriented silicon steel from strand cast slab
EP0400549A2 (en) * 1989-05-29 1990-12-05 Nippon Steel Corporation Process for producing grainoriented electrical steel sheet having superior magnetic and surface film characteristics
EP0648847A1 (en) * 1993-10-19 1995-04-19 Nippon Steel Corporation Production method of grain oriented electrical steel sheet having excellent magnetic characteristics
US6524400B1 (en) * 1997-10-15 2003-02-25 Thyssen Krupp Stahl Ag Process for the production of grain-oriented electric quality sheet with low remagnetization loss and high polarization
DE19816158A1 (en) * 1998-04-09 1999-10-14 G K Steel Trading Gmbh Process for the production of grain-oriented anisotropic, electrotechnical steel sheets
EP2039792A1 (en) * 2006-05-24 2009-03-25 Nippon Steel Corporation Unidirectionally grain oriented electromagnetic steel sheet having excellent iron loss properties

Also Published As

Publication number Publication date
US20130174940A1 (en) 2013-07-11
WO2011114178A1 (en) 2011-09-22
WO2011114227A2 (en) 2011-09-22
BR112012023611A2 (en) 2017-10-03
EP2547799A2 (en) 2013-01-23
EP2547799B1 (en) 2015-04-08

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