MY161948A - Cold rolled steel sheet having excellent formability,shape fixability after aging,and method for manufacturing the same - Google Patents

Cold rolled steel sheet having excellent formability,shape fixability after aging,and method for manufacturing the same

Info

Publication number
MY161948A
MY161948A MYPI2012002746A MYPI2012002746A MY161948A MY 161948 A MY161948 A MY 161948A MY PI2012002746 A MYPI2012002746 A MY PI2012002746A MY PI2012002746 A MYPI2012002746 A MY PI2012002746A MY 161948 A MY161948 A MY 161948A
Authority
MY
Malaysia
Prior art keywords
steel sheet
range
temperature
rolled steel
cold
Prior art date
Application number
MYPI2012002746A
Inventor
Taro Kizu
Eiko Yasuhara
Kazuhiro Hanazawa
Original Assignee
Jfe Steel Corp
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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of MY161948A publication Critical patent/MY161948A/en

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
    • 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
    • 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
    • C21D8/0447—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 heat treatment
    • C21D8/0473—Final recrystallisation annealing
    • 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
    • C22C38/04—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
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • 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
    • 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
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Coating With Molten Metal (AREA)

Abstract

THERE ARE PROVIDED A COLD-ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND SHAPE FIXABILITY AFTER AGING AND A METHOD FOR MANUFACTURING THE COLD-ROLLED STEEL SHEET. THE COLD-ROLLED STEEL SHEET CONTAINS C: 0.01% TO 0.05%, SI: 0.05% OR LESS, MN: 0.1% TO 0.5%, P: 0.05% OR LESS, S: 0.02% OR LESS, A1: 0.02% TO 0.10%, AND N: 0.005% OR LESS, AND THE REMAINDER OF IRON AND INCIDENTAL IMPURITIES. THE COLD-ROLLED STEEL SHEET HAS A STRUCTURE MAINLY COMPOSED OF A FERRITE PHASE. THE FERRITE PHASE HAS AN AVERAGE GRAIN SIZE IN THE RANGE OF 10 TO 20 µM. THE STANDARD DEVIATION σA OF THE NATURAL LOGARITHMS OF INDIVIDUAL FERRITE GRAIN SIZES DIVIDED BY THE AVERAGE GRAIN SIZE IS 0.30 OR MORE. THE STEEL SHEET IS MANUFACTURED BY, IN ANNEALING AFTER COLD ROLLING, HEATING THE STEEL SHEET AT A TEMPERATURE IN THE RANGE OF 600°C TO A SOAKING TEMPERATURE AT AN AVERAGE HEATING RATE IN THE RANGE OF 1°C TO 30°C/S, SOAKING THE STEEL SHEET AT A TEMPERATURE IN THE RANGE OF 800°C TO 900°C FOR 30 TO 200 SECONDS, COOLING THE STEEL SHEET AT A TEMPERATURE IN THE RANGE OF THE SOAKING TEMPERATURE TO 550°C AT AN AVERAGE COOLING RATE IN THE RANGE OF 3°C TO 30°C/S, HOLDING THE STEEL SHEET AT A TEMPERATURE IN THE RANGE OF 500°C TO 300°C FOR 30 SECONDS OR MORE, AND IMPOSING A STRAIN OF AN ELONGATION PERCENTAGE IN THE RANGE OF 0.5% TO 2.0% ON THE STEEL SHEET AT ROOM TEMPERATURE.
MYPI2012002746A 2010-01-15 2011-01-07 Cold rolled steel sheet having excellent formability,shape fixability after aging,and method for manufacturing the same MY161948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010006553A JP5018900B2 (en) 2010-01-15 2010-01-15 Cold-rolled steel sheet excellent in formability and shape freezing property after aging and method for producing the same

Publications (1)

Publication Number Publication Date
MY161948A true MY161948A (en) 2017-05-15

Family

ID=44304378

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012002746A MY161948A (en) 2010-01-15 2011-01-07 Cold rolled steel sheet having excellent formability,shape fixability after aging,and method for manufacturing the same

Country Status (7)

Country Link
JP (1) JP5018900B2 (en)
KR (1) KR20120094125A (en)
CN (1) CN102712974B (en)
MX (1) MX353920B (en)
MY (1) MY161948A (en)
TW (1) TWI429758B (en)
WO (1) WO2011087109A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101461740B1 (en) * 2012-12-21 2014-11-14 주식회사 포스코 Hot rolled steel sheet having low deviation of mechanical property and thickness and excellent coating detachment resistance and method for manufacturing the same
CN105378128B (en) * 2013-07-03 2017-09-19 Posco公司 Processability and the excellent hot rolled steel plate of aging resistance and its manufacture method
CN112553537A (en) * 2019-09-25 2021-03-26 上海梅山钢铁股份有限公司 Cold-rolled hot-dip galvanized steel sheet with yield strength of 240MPa and manufacturing method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2582894B2 (en) * 1989-04-04 1997-02-19 株式会社神戸製鋼所 Hot-rolled steel sheet for deep drawing and its manufacturing method
JP3815762B2 (en) * 1998-07-29 2006-08-30 日新製鋼株式会社 Copper-plated steel sheet for single pipe excellent in coarse grain resistance, copper penetration resistance, etc. and method for producing the same
JP4622187B2 (en) * 2001-08-21 2011-02-02 Ｊｆｅスチール株式会社 Cold-rolled steel sheet, cold-rolled steel sheet having excellent strain age hardening characteristics and no room temperature aging deterioration, and methods for producing them
TWI290586B (en) * 2003-09-24 2007-12-01 Nippon Steel Corp Hot rolled steel sheet and method of producing the same
CN100473742C (en) * 2006-04-29 2009-04-01 宝山钢铁股份有限公司 Hot-rolled fine-grained steel for electrostatic enamel and manufacturing method thereof
JP5423092B2 (en) * 2009-03-27 2014-02-19 Ｊｆｅスチール株式会社 Steel plate for cans with excellent surface properties after drawing and ironing and method for producing the same
JP5549307B2 (en) * 2009-04-13 2014-07-16 Ｊｆｅスチール株式会社 Cold-rolled steel sheet excellent in aging and bake hardenability and method for producing the same

Also Published As

Publication number Publication date
CN102712974B (en) 2014-06-25
JP2011144427A (en) 2011-07-28
KR20120094125A (en) 2012-08-23
TW201134954A (en) 2011-10-16
WO2011087109A1 (en) 2011-07-21
MX2012007914A (en) 2012-08-01
JP5018900B2 (en) 2012-09-05
MX353920B (en) 2018-02-06
CN102712974A (en) 2012-10-03
TWI429758B (en) 2014-03-11

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