EP2835438B1 - Tôle d'acier facilement façonnable, de résistance élevée, et son procédé de fabrication - Google Patents

Tôle d'acier facilement façonnable, de résistance élevée, et son procédé de fabrication Download PDF

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Publication number
EP2835438B1
EP2835438B1 EP13773084.2A EP13773084A EP2835438B1 EP 2835438 B1 EP2835438 B1 EP 2835438B1 EP 13773084 A EP13773084 A EP 13773084A EP 2835438 B1 EP2835438 B1 EP 2835438B1
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EP
European Patent Office
Prior art keywords
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steel sheet
strength
cold rolling
temperature
Prior art date
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Application number
EP13773084.2A
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German (de)
English (en)
Other versions
EP2835438A4 (fr
EP2835438A1 (fr
Inventor
Takumi Tanaka
Katsumi Kojima
Yoichi Tobiyama
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JFE Steel Corp
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JFE Steel Corp
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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • 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
    • C21D8/02—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
    • C21D8/0236—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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
    • 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
    • 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
    • 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
    • C22C38/02—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
    • 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
    • C25D5/48—After-treatment of electroplated surfaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2701/00—Coatings being able to withstand changes in the shape of the substrate or to withstand welding
    • B05D2701/10—Coatings being able to withstand changes in the shape of the substrate or to withstand welding withstanding draw and redraw process, punching
    • 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
    • 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
    • C21D2251/00—Treating composite or clad material
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the high strength and high formability steel sheet of the present invention exerts high formability by suppressing carbon (C) content to small.
  • C content When the C content is not less than 0.040%, a steel sheet becomes excessively hard, thus making it impossible to manufacture a thin steel sheet by second cold rolling while ensuring formability.
  • the upper limit of C content is set to be less than 0.040%.
  • the tensile strength of 520 MPa that is required to obtain significant economic effects resulted by thinning of a steel sheet cannot be obtained.
  • the lower limit of C content is set to exceed more than 0.020%.
  • Aluminum (Al) is an element necessary as deoxidizer in a steelmaking process.
  • Al content is small, deoxidation is insufficient, and inclusions increase, thus deteriorating formability.
  • the Al content is not less than 0.005%, it can be considered that deoxidation is performed sufficiently.
  • the Al content exceeds 0.100%, the frequency of occurrence of surface defects due to alumina clusters, etc. is increased.
  • the Al content is therefore set to be not less than 0.005% and not greater than 0.100%.
  • N content is increased, instead of reducing C content, to ensure strength.
  • the strengthening using N has small effects on bulging formability, and thus it is possible to strengthen a steel sheet without deteriorating an Erichsen value.
  • N content is not greater than 0.0130%, the strength necessary for a can lid cannot be obtained.
  • the upper limit of N content is therefore set to be 0.0170%.
  • the tensile strength of the high strength and high formability steel sheet of the present invention is set to be not lower than 520 MPa.
  • the tensile strength is therefore set to be not lower than 520 MPa.
  • the above tensile strength can be measured by Metallic materials-Tensile testing defined in the document "JIS Z 2241".
  • the steel sheets of Inventive Examples No. 1 to No. 6 are excellent in strength, and achieve tensile strength of not lower than 520 MPa that is required as an ultrathin steel sheet for cans. Moreover, they are also excellent in formability, and have an Erichsen value of not less than 5.0 mm that is required in EOE processing. Furthermore, even if the rivet formation is performed, no crack or necking in a thickness direction occurs.
  • each of the steel sheets of Comparative Examples No. 7 and No. 9 has such small C and N content that they are lacking in tensile strength.
  • the steel sheet of Comparative Example No. 8 has such large C content that the formability is deteriorated by second cold rolling, resulting in the lack in Erichsen value and thus causing a crack in rivet formation.

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

Claims (2)

  1. Tôle d'acier facilement façonnable et de résistance élevée pour ouvrir facilement les extrémités de boîtes ayant une résistance à la traction dans une direction de laminage de pas moins de 520 MPa, et une valeur d'Erichsen de pas moins de 5,0 mm, qui peut être obtenue par :
    la formation d'une brame par la coulée continue d'un acier incluant, en % en masse :
    plus de 0,020 % et moins de 0,040 % de C ;
    pas moins de 0,003 % et pas plus de 0,100 % de Si ;
    pas moins de 0,10 % et pas plus de 0,60 % de Mn ;
    pas moins de 0,001 % et pas plus de 0,100 % de P ;
    pas moins de 0,001 % et pas plus de 0,020 % de S ;
    pas moins de 0,005 % et pas plus de 0,100 % d'Al ;
    plus de 0,0130 % et pas plus de 0,0170 % de N ; et
    le reste étant Fe et des impuretés inévitables ;
    la mise en oeuvre d'un laminage à chaud à une température de réchauffage de brame de pas moins de 1150 °C ;
    un enroulement à une température de pas plus de 600 °C ;
    ensuite la mise en oeuvre d'un premier laminage à froid ;
    ensuite la mise en oeuvre d'un recuit continu à une température de trempe de 600 à 700 °C pendant une période de trempe de 10 à 50 secondes ; et
    ensuite la mise en oeuvre d'un second laminage à froid à un rapport de réduction de 8,0 à 15,0 %,
    la tôle d'acier facilement façonnable et de résistance élevée étant caractérisée en ce qu'elle comprend une couche de film de résine ayant une épaisseur de 5 à 100 µm au moins sur une face pour être une surface interne d'une boîte.
  2. Procédé de fabrication d'une tôle d'acier facilement façonnable et de résistance élevée pour ouvrir facilement les extrémités de boîtes, le procédé comprenant :
    la formation d'une brame par la coulée continue d'un acier incluant, en % en masse :
    plus de 0,020 % et moins de 0,040 % de C ;
    pas moins de 0,003 % et pas plus de 0,100 % de Si ;
    pas moins de 0,10 % et pas plus de 0,60 % de Mn ;
    pas moins de 0,001 % et pas plus de 0,100 % de P ;
    pas moins de 0,001 % et pas plus de 0,020 % de S ;
    pas moins de 0,005 % et pas plus de 0,100 % d'Al ;
    plus de 0,0130 % et pas plus de 0,0170 % de N ; et
    le reste étant Fe et des impuretés inévitables ;
    la mise en oeuvre d'un laminage à chaud à une température de réchauffage de brame de pas moins de 1150 °C ;
    un enroulement à une température de pas plus de 600 °C ;
    ensuite la mise en oeuvre d'un premier laminage à froid ;
    ensuite la mise en oeuvre d'un recuit continu à une température de trempe de 600 à 700 °C pendant une période de trempe de 10 à 50 secondes ;
    ensuite la mise en oeuvre d'un second laminage à froid à un rapport de réduction de 8,0 à 15,0 % ;
    la fixation d'un film de résine ayant une épaisseur de 5 à 100 µm au moins sur une face pour être une surface interne d'une boîte après la formation d'un film de traitement de surface par un procédé électrolytique ; et
    la fabrication d'une tôle d'acier ayant une résistance à la traction dans une direction de laminage de pas moins de 520 MPa et une valeur d'Erichsen de pas moins de 5,0 mm.
EP13773084.2A 2012-04-06 2013-04-03 Tôle d'acier facilement façonnable, de résistance élevée, et son procédé de fabrication Active EP2835438B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012087940 2012-04-06
PCT/JP2013/060175 WO2013151085A1 (fr) 2012-04-06 2013-04-03 Tôle d'acier facilement façonnable, de résistance élevée, et son procédé de fabrication

Publications (3)

Publication Number Publication Date
EP2835438A1 EP2835438A1 (fr) 2015-02-11
EP2835438A4 EP2835438A4 (fr) 2015-12-23
EP2835438B1 true EP2835438B1 (fr) 2019-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13773084.2A Active EP2835438B1 (fr) 2012-04-06 2013-04-03 Tôle d'acier facilement façonnable, de résistance élevée, et son procédé de fabrication

Country Status (9)

Country Link
US (1) US20150064448A1 (fr)
EP (1) EP2835438B1 (fr)
JP (1) JP5804195B2 (fr)
KR (1) KR20140117602A (fr)
CN (1) CN104245985B (fr)
CO (1) CO7061066A2 (fr)
MY (1) MY185149A (fr)
TW (1) TWI473889B (fr)
WO (1) WO2013151085A1 (fr)

Cited By (1)

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DE202021100700U1 (de) 2020-03-06 2021-06-10 Thyssenkrupp Rasselstein Gmbh Kaltgewalztes Stahlflachprodukt für Verpackungen

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US20170051377A1 (en) 2014-04-30 2017-02-23 Jfe Steel Corporation High-strengh steel sheet and method sheet for manufacturing the same
JP6108044B2 (ja) * 2015-03-31 2017-04-05 Ｊｆｅスチール株式会社 缶蓋用鋼板およびその製造方法
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JP6421772B2 (ja) * 2016-02-29 2018-11-14 Ｊｆｅスチール株式会社 缶用鋼板の製造方法

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US20060228524A1 (en) * 2003-05-22 2006-10-12 Hiroshi Kubo Easy-open end and laminated steel sheet
US20110076177A1 (en) * 2008-04-03 2011-03-31 Jfe Steel Corporation High-strength steel sheet for cans and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021100700U1 (de) 2020-03-06 2021-06-10 Thyssenkrupp Rasselstein Gmbh Kaltgewalztes Stahlflachprodukt für Verpackungen
WO2021175562A1 (fr) 2020-03-06 2021-09-10 Thyssenkrupp Rasselstein Gmbh Produit plat en acier laminé à froid pour emballage

Also Published As

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JPWO2013151085A1 (ja) 2015-12-17
JP5804195B2 (ja) 2015-11-04
KR20140117602A (ko) 2014-10-07
WO2013151085A1 (fr) 2013-10-10
CN104245985B (zh) 2017-08-11
TWI473889B (zh) 2015-02-21
EP2835438A4 (fr) 2015-12-23
TW201410879A (zh) 2014-03-16
US20150064448A1 (en) 2015-03-05
EP2835438A1 (fr) 2015-02-11
MY185149A (en) 2021-04-30
CN104245985A (zh) 2014-12-24
CO7061066A2 (es) 2014-09-19

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