EP1974065A1 - Verzinktes walzhartes kaltgewalztes flachprodukt und verfahren zu seiner herstellung - Google Patents

Verzinktes walzhartes kaltgewalztes flachprodukt und verfahren zu seiner herstellung

Info

Publication number
EP1974065A1
EP1974065A1 EP07703609A EP07703609A EP1974065A1 EP 1974065 A1 EP1974065 A1 EP 1974065A1 EP 07703609 A EP07703609 A EP 07703609A EP 07703609 A EP07703609 A EP 07703609A EP 1974065 A1 EP1974065 A1 EP 1974065A1
Authority
EP
European Patent Office
Prior art keywords
cold
flat product
rolled
rolled flat
thickness
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07703609A
Other languages
German (de)
English (en)
French (fr)
Inventor
Peter Dr. Biele
Ralph Dipl.-Ing. Goecke
Peter Dipl.-Ing. Klauke
Markus Dipl.-Ing. Lohe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
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 EP1974065A1 publication Critical patent/EP1974065A1/de
Withdrawn legal-status Critical Current

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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • 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
    • C21D8/04—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
    • 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
    • C22C38/02—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
    • 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
    • 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
    • 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
    • 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
    • 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
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-base component
    • Y10T428/12799—Next to Fe-base component [e.g., galvanized]

Definitions

  • the invention relates to a cold-rolled flat product produced from a low-alloy steel, provided with a galvanizing, such as cold strip or cold-rolled sheet, of high strength and a method for its production.
  • this temperature is significantly lower than the recrystallization temperature of the respective steel, this heating acts like a tempering.
  • the heating to the zinc bath temperature therefore results in a decrease in the strength of the cold strip delivered in the full-hard state via the hot-dip galvanizing.
  • Full hard cold strips, which are provided with a hot-dip galvanizing accordingly have typical strengths, which are in the range of 500 - 700 MPa.
  • JP 10176253 A Although an attempt has been described in JP 10176253 A to minimize the decrease in strength occurring in the course of hot-dip galvanizing by the fact that the section of the steel strip entering the zinc bath only reaches the required level prior to its entry into the bath by a closely concentrated inductive heating Temperature is brought. However, the required apparatus and control engineering effort is so considerable that the known method proves to be uneconomical in practice.
  • the invention was based on the object to provide a cold-rolled, flat-rolled steel flat product which is in a roll-resistant, full-hard state and has, in addition to a particularly high strength, a high corrosion resistance.
  • a method for producing such a flat product should be specified.
  • this object has been achieved according to the invention by a cold-rolled flat product, the a low-alloyed steel which, in addition to iron and unavoidable impurities (in% by weight) up to 0.45% C, up to 2.20% Si, up to 2.50% Mn, up to 0.12% P, up to 0.025% S, up to 2.0% Al, up to 0.15% Ti, up to 0.09% Nb, in total up to 1.0% Cr and Mo, up to 0.2% V and up to 0.005% B, which has a thickness of 0.1 - 4 mm which is in the hard-rolled state and has a tensile strength of 700-1000 MPa and which is coated with a zinc layer, which is applied by electrolytic galvanizing and has a layer thickness of up to 12 microns.
  • the cold-rolled flat product is subjected to electrolytic galvanizing in the hard-rolled state which is applied to the cold-rolled flat product up to 12 microns thick zinc layer.
  • a non-annealed cold-rolled flat product made of a steel of a given composition, such as cold strip or cold-rolled sheet, in the hard-rolled state, having a tensile strength of at least 700 MPa at an elongation of less than 1%.
  • the high strength of the flat material according to the invention which may even be increased by the electrolytic galvanizing, does not impede its further deformation, which is possible within the scope of its minimized extensibility.
  • simply shaped profile elements such as slats for roller shutters or roller shutters, can be produced from products according to the invention by means of edging, bending or roll profiling. produce, which not only due to their small material thickness have a low weight and ensure good thermal insulation, but also have a particularly high rigidity and a correspondingly high Beulfestmaschine due to their particularly high strength.
  • This combination of properties makes products according to the invention particularly suitable for applications in which the respective component is exposed to large-area loads, for example due to wind or comparable loads.
  • cold-rolled steel or sheet metal according to the invention can be made available with a thickness which is 0.1-3 mm, and for typical applications its thickness can be in the range of 0.1-1.0 mm, in particular up to 0.8 mm.
  • the corrosion-protective effect of the zinc layer present on cold-rolled flat products according to the invention can thereby be reliably ensured that the zinc layer is at least 2 ⁇ m thick.
  • Typical layer thicknesses are 2.5 ⁇ m, 7.5 ⁇ m or 10 ⁇ m.
  • a preferred layer thickness range is accordingly in the range of 2 to 10 .mu.m, in particular 4 to 8 .mu.m.
  • cold-rolled full-hard steel materials according to the invention can carry on the zinc layer at least one further coating, such as a coating, a powder coating or comparable layers.
  • a particularly high work hardening and, consequently, particularly high strength values can be achieved by correspondingly high, achieved in the course of multi-stage cold rolling if necessary obtained degrees of deformation can be achieved.
  • the full-hard material produced in this way was then coated on both sides with a zinc layer in a conventional electrolytic strip coating plant, the thickness of which was 7.5 ⁇ m.
  • the tensile strength of the full-hard material after electrolytic galvanizing was still 841 MPa.
  • electrolytically galvanized, hard-cold rolled strip was then provided with a color coat.
  • roll profiling it could be easily deformed into slats for roller shutters, which are characterized by a high dent resistance in addition to a low weight and good thermal insulation property.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)
EP07703609A 2006-01-11 2007-01-03 Verzinktes walzhartes kaltgewalztes flachprodukt und verfahren zu seiner herstellung Withdrawn EP1974065A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006001628A DE102006001628A1 (de) 2006-01-11 2006-01-11 Verzinktes walzhartes kaltgewalztes Flachprodukt und Verfahren zu seiner Herstellung
PCT/EP2007/050042 WO2007082786A1 (de) 2006-01-11 2007-01-03 Verzinktes walzhartes kaltgewalztes flachprodukt und verfahren zu seiner herstellung

Publications (1)

Publication Number Publication Date
EP1974065A1 true EP1974065A1 (de) 2008-10-01

Family

ID=38219551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07703609A Withdrawn EP1974065A1 (de) 2006-01-11 2007-01-03 Verzinktes walzhartes kaltgewalztes flachprodukt und verfahren zu seiner herstellung

Country Status (7)

Country Link
US (1) US20100159276A1 (zh)
EP (1) EP1974065A1 (zh)
KR (1) KR20080085028A (zh)
CN (1) CN101454464A (zh)
CA (1) CA2634527A1 (zh)
DE (1) DE102006001628A1 (zh)
WO (1) WO2007082786A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051673B3 (de) * 2009-11-03 2011-04-14 Voestalpine Stahl Gmbh Herstellung von Galvannealed-Blechen durch Wärmebehandlung elektrolytisch veredelter Bleche
CN102011060A (zh) * 2010-09-30 2011-04-13 广州珠江钢铁有限责任公司 一种700MPa级具有优良耐候性的冷轧钢板及其制备方法
DE102012110972B3 (de) * 2012-11-14 2014-03-06 Muhr Und Bender Kg Verfahren zum Herstellen eines Erzeugnisses aus flexibel gewalztem Bandmaterial und Erzeugnis aus flexibel gewalztem Bandmaterial
JP6292001B2 (ja) * 2014-04-25 2018-03-14 新日鐵住金株式会社 フルハード冷延鋼板
DE102014109315C5 (de) * 2014-07-03 2022-02-24 Thyssenkrupp Ag Verfahren zum Herstellen von Profilen aus Metall
DE102015115105B4 (de) * 2015-09-08 2017-07-20 Paul Wilhelm Hoffmann Verfahren zur Herstellung von Schaltmodulen in einem Kraftfahrzeuggetriebe
DE102016005531A1 (de) * 2016-05-02 2017-11-02 Vladimir Volchkov Niedriggekohlter Stahl
DE102017202586B3 (de) 2017-02-17 2018-03-29 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Bauteils aus einem mikrolegierten Stahl
JP6455583B2 (ja) * 2017-12-15 2019-01-23 新日鐵住金株式会社 フルハード冷延鋼板
DE102022104228A1 (de) 2022-02-23 2023-08-24 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines kaltgewalzten Stahlflachprodukts mit niedrigem Kohlenstoffgehalt

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US3772091A (en) * 1969-08-27 1973-11-13 Bethlehem Steel Corp Very thin steel sheet and method of producing same
US3963531A (en) * 1975-02-28 1976-06-15 Armco Steel Corporation Cold rolled, ductile, high strength steel strip and sheet and method therefor
JP2571166B2 (ja) * 1991-07-29 1997-01-16 東洋鋼鈑株式会社 Ｄｉ缶用表面処理鋼板の製造方法
US5284680A (en) * 1992-04-27 1994-02-08 Inland Steel Company Method for producing a galvanized ultra-high strength steel strip
EP1288322A1 (en) * 2001-08-29 2003-03-05 Sidmar N.V. An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained
EP1431406A1 (en) * 2002-12-20 2004-06-23 Sidmar N.V. A steel composition for the production of cold rolled multiphase steel products
JP4322610B2 (ja) * 2003-09-19 2009-09-02 日新製鋼株式会社 衝撃特性に優れた冷延鋼板及びその製造方法

Non-Patent Citations (1)

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Title
See references of WO2007082786A1 *

Also Published As

Publication number Publication date
WO2007082786A1 (de) 2007-07-26
WO2007082786A8 (de) 2007-09-27
KR20080085028A (ko) 2008-09-22
US20100159276A1 (en) 2010-06-24
CN101454464A (zh) 2009-06-10
CA2634527A1 (en) 2007-07-26
DE102006001628A1 (de) 2007-07-26

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