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BR9810485A - Cold rolled steel sheet and galvanized steel sheet, excellent in conformability, panel shape retention and notch resistance and manufacturing process - Google Patents

Cold rolled steel sheet and galvanized steel sheet, excellent in conformability, panel shape retention and notch resistance and manufacturing process

Info

Publication number
BR9810485A
BR9810485A BR9810485-3A BR9810485A BR9810485A BR 9810485 A BR9810485 A BR 9810485A BR 9810485 A BR9810485 A BR 9810485A BR 9810485 A BR9810485 A BR 9810485A
Authority
BR
Brazil
Prior art keywords
sym
weight
steel sheet
conformability
shape retention
Prior art date
Application number
BR9810485-3A
Other languages
Portuguese (pt)
Inventor
Fusato Kitano
Masaya Morita
Yoshihiro Hosoya
Takeshi Fujita
Tadashi Inoue
Masahiro Iwabuchi
Takeo Ishii
Original Assignee
Nippon Kokan Kk
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 Nippon Kokan Kk filed Critical Nippon Kokan Kk
Publication of BR9810485A publication Critical patent/BR9810485A/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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • 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
    • C21D8/0426—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
    • C21D8/02—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
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0224—Two or more thermal pretreatments
    • 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching

Landscapes

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

Abstract

Patente de Invenção: <B>"CHAPA DE AçO LAMINADA A FRIO E CHAPA DE AçO GALVANIZADO, EXCELENTES EM CONFORMABILIDADE, RETENçãO DE FORMA DE PAINEL E RESISTêNCIA DE ENTALHE E PROCESSO DE FABRICAçãO DAS MESMAS"<D>. é divulgada uma chapa laminada a frio excelente em conformabilidade, retenção de forma de painel e resistência de entalhe compreendendo 0,005 a 0,015% em peso de C, 0,01 a 0,2% em peso de Si, 0,2 a 1,5% em peso de Mn, 0,01 a 0,07% em peso de P, 0,006 a 0,015% em peso de S, 0,01 a 0,08% em peso de Al sol., não mais que 0,004% em peso de N (n menor ou igual a 0,004%), não mais que 0,003% em peso de O (O menor ou igual a 0,003%), 0,04 a 0,23% em peso de Nb, 1,0 <MU><243><MV> (Nb % x 12)/(C % x 93) <MU><243><MV> 3,0, o restante sendo ferro e impurezas inevitáveis e a referida chapa de aço laminada a frio atendendo a relação abaixo: exp(<SYM>) x (5,29 x exp (<SYM>) - 4,19) <MU><243><MV> <SYM>~ 0,2~ <MU><243><MV> exp(<SYM>) x (5,64 x exp (<SYM>) - 4,49) (2) onde 0,002 <MU><243><MV> <SYM> <MU><243><MV> 0,096, <SYM> representando tensão verdadeira, <SYM> ~ 0,2~ representando uma tensão de teste de 0,2%, e <SYM> representando uma tensão verdadeira relativa a <SYM>.Invention Patent: <B> "COLD LAMINATED STEEL SHEET AND GALVANIZED STEEL SHEET, EXCELLENT IN CONFORMABILITY, PANEL SHAPE RETENTION AND SLOT RESISTANCE AND SAME MANUFACTURING PROCESS" <D>. a cold rolled sheet excellent in conformability, panel shape retention and notch resistance comprising 0.005 to 0.015% by weight of C, 0.01 to 0.2% by weight of Si, 0.2 to 1.5 is disclosed % by weight of Mn, 0.01 to 0.07% by weight of P, 0.006 to 0.015% by weight of S, 0.01 to 0.08% by weight of Al sol., not more than 0.004% by weight of N (n less than or equal to 0.004%), not more than 0.003% by weight of O (O less than or equal to 0.003%), 0.04 to 0.23% by weight of Nb, 1.0 <MU> <243> <MV> (Nb% x 12) / (C% x 93) <MU><243> <MV> 3.0, the remainder being iron and unavoidable impurities and the aforementioned cold-rolled steel plate given list below: exp (<SYM>) x (5.29 x exp (<SYM>) - 4.19) <MU><243> <MV> <SYM> ~ 0.2 ~ <MU> <243> < MV> exp (<SYM>) x (5.64 x exp (<SYM>) - 4.49) (2) where 0.002 <MU><243> <MV> <SYM> <MU> <243> <MV > 0.096, <SYM> representing true voltage, <SYM> ~ 0.2 ~ representing 0.2% test voltage, and <SYM> representing true voltage relative to <SYM>.

BR9810485-3A 1998-04-27 1998-09-24 Cold rolled steel sheet and galvanized steel sheet, excellent in conformability, panel shape retention and notch resistance and manufacturing process BR9810485A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11678898A JP4177478B2 (en) 1998-04-27 1998-04-27 Cold-rolled steel sheet, hot-dip galvanized steel sheet excellent in formability, panel shape, and dent resistance, and methods for producing them
PCT/JP1998/004283 WO1999055927A1 (en) 1998-04-27 1998-09-24 Cold rolled steel plate of excellent moldability, panel shape characteristics and denting resistance, molten zinc plated steel plate, and method of manufacturing these steel plates

Publications (1)

Publication Number Publication Date
BR9810485A true BR9810485A (en) 2000-09-12

Family

ID=14695722

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9810485-3A BR9810485A (en) 1998-04-27 1998-09-24 Cold rolled steel sheet and galvanized steel sheet, excellent in conformability, panel shape retention and notch resistance and manufacturing process

Country Status (7)

Country Link
EP (2) EP1002884B1 (en)
JP (1) JP4177478B2 (en)
KR (1) KR100345012B1 (en)
CN (2) CN1084797C (en)
BR (1) BR9810485A (en)
DE (1) DE69840595D1 (en)
WO (1) WO1999055927A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100595945B1 (en) * 2000-04-24 2006-07-03 제이에프이 스틸 가부시키가이샤 Straight section steel with excellent fatigue properties in joints and its manufacturing method
CN1158398C (en) * 2000-05-26 2004-07-21 杰富意钢铁株式会社 Cold rolled steel sheet having strain age hardening property, galvanized steel sheet and manufacturing method thereof
US20030015263A1 (en) 2000-05-26 2003-01-23 Chikara Kami Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same
EP2312010A1 (en) * 2000-06-20 2011-04-20 JFE Steel Corporation Steel sheet and method for manufacturing the same
KR101125916B1 (en) * 2003-11-10 2012-03-21 주식회사 포스코 Non-aging cold rolled steel sheet having less anisotropy and process for producing the same
JP4513434B2 (en) * 2004-07-09 2010-07-28 Ｊｆｅスチール株式会社 High-strength cold-rolled steel sheet with excellent material uniformity in the coil and manufacturing method thereof
KR101042434B1 (en) * 2007-10-29 2011-06-16 현대제철 주식회사 Cold rolled steel sheet and manufacturing method thereof
JP5056863B2 (en) * 2010-01-15 2012-10-24 Ｊｆｅスチール株式会社 Cold rolled steel sheet and method for producing the same
EP3516084B8 (en) * 2016-09-20 2022-07-20 ThyssenKrupp Steel Europe AG Method for producing flat steel products, and a flat steel product
CA3039083A1 (en) * 2016-10-17 2018-04-26 Tata Steel Ijmuiden B.V. Steel substrate for painted parts
DE102017103308A1 (en) * 2017-02-17 2018-08-23 Voestalpine Stahl Gmbh Method for producing steel sheets
KR102322713B1 (en) * 2019-12-19 2021-11-04 주식회사 포스코 Cold-rolled steel sheet having excellent heat-resistance and formability and manufacturing method therof
WO2021149810A1 (en) * 2020-01-24 2021-07-29 日本製鉄株式会社 Panel
KR102556444B1 (en) * 2020-12-29 2023-07-18 현대제철 주식회사 Cold rolled steel sheet having excellent dent resistance property, galvanized steel sheet, and method of manufacturing the same
CN117165845B (en) * 2023-04-28 2024-04-16 鞍钢股份有限公司 340MPa grade alloyed hot-dip galvanized sheet for new energy vehicles and preparation method thereof

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JPS6046166B2 (en) * 1980-11-26 1985-10-15 川崎製鉄株式会社 Method for manufacturing cold-rolled steel sheet with bake hardenability and good workability
JPS5967322A (en) * 1982-10-08 1984-04-17 Kawasaki Steel Corp Manufacture of cold rolled steel plate for deep drawing
US4504326A (en) * 1982-10-08 1985-03-12 Nippon Steel Corporation Method for the production of cold rolled steel sheet having super deep drawability
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Also Published As

Publication number Publication date
CN1138016C (en) 2004-02-11
DE69840595D1 (en) 2009-04-09
CN1261408A (en) 2000-07-26
EP2172575A1 (en) 2010-04-07
KR20010014238A (en) 2001-02-26
CN1084797C (en) 2002-05-15
WO1999055927A1 (en) 1999-11-04
CN1405352A (en) 2003-03-26
JP4177478B2 (en) 2008-11-05
EP1002884A4 (en) 2006-04-05
JPH11310849A (en) 1999-11-09
KR100345012B1 (en) 2002-07-20
EP1002884A1 (en) 2000-05-24
EP1002884B1 (en) 2009-02-25

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/09/1998, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)