EP1069192A3 - Method of manufacturing a steel strip by flexible rolling - Google Patents

Method of manufacturing a steel strip by flexible rolling Download PDF

Info

Publication number
EP1069192A3
EP1069192A3 EP00111354A EP00111354A EP1069192A3 EP 1069192 A3 EP1069192 A3 EP 1069192A3 EP 00111354 A EP00111354 A EP 00111354A EP 00111354 A EP00111354 A EP 00111354A EP 1069192 A3 EP1069192 A3 EP 1069192A3
Authority
EP
European Patent Office
Prior art keywords
rolling
flexible rolling
steel
manufacturing
steel strip
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Withdrawn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
EP00111354A
Other languages
German (de)
French (fr)
Other versions
EP1069192A2 (en
Inventor
Friedrich Prof. Dr.-Ing. Behr
Rudolf Prof. Dr.-Ing. Kawalla
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 Stahl 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 Stahl AG filed Critical ThyssenKrupp Stahl AG
Publication of EP1069192A2 publication Critical patent/EP1069192A2/en
Publication of EP1069192A3 publication Critical patent/EP1069192A3/en
Withdrawn legal-status Critical Current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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
    • 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
    • C21D8/0231—Warm 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
    • C21D2221/00—Treating localised areas of an article

Landscapes

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

Abstract

Die Erfindung betrifft ein Verfahren zum Herstellen eines Bandes aus Stahl mit in Längsrichtung unterschiedlich dicken Abschnitten durch flexibles Walzen bei erhöhter Bandtemperatur. Um nach dem flexiblen Walzen ein Band mit einem in allen Bereichen noch für nachfolgende Umformungen, wie Tiefziehen, ausreichenden Umformvermögen zu haben, ohne daß das Band im Anschluß an das flexible Walzen einer Rekristallisationsglühung unterworfen wird oder beim Warmwalzen eine verhältnismäßig hohe Temperatur aufweisen muß, ist vorgesehen, daß für das Band eine besondere Stahlqualität verwendet wird und daß das Walzen bei einer Bandtemperatur unter der Rekristallisationstemperatur dieses Stahls und oberhalb von 300° C erfolgt.The invention relates to a method for producing a Band of steel with different in the longitudinal direction thick sections by flexible rolling at increased Strip temperature. To use a tape after flexible rolling one in all areas still for subsequent ones Forming, such as deep drawing, sufficient formability to have without the band following the flexible Rolling is subjected to a recrystallization annealing or a relatively high temperature during hot rolling must have, it is provided that a special steel quality is used and that the rolling at a strip temperature below that Recrystallization temperature of this steel and above of 300 ° C.

EP00111354A 1999-07-15 2000-05-26 Method of manufacturing a steel strip by flexible rolling Withdrawn EP1069192A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19933113 1999-07-15
DE1999133113 DE19933113C1 (en) 1999-07-15 1999-07-15 Variable thickness steel strip production by flexible warm rolling of an austenitic steel containing manganese, nickel and/or molybdenum for use in e.g. automobile bodywork production

Publications (2)

Publication Number Publication Date
EP1069192A2 EP1069192A2 (en) 2001-01-17
EP1069192A3 true EP1069192A3 (en) 2004-06-02

Family

ID=7914849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111354A Withdrawn EP1069192A3 (en) 1999-07-15 2000-05-26 Method of manufacturing a steel strip by flexible rolling

Country Status (2)

Country Link
EP (1) EP1069192A3 (en)
DE (1) DE19933113C1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021323A1 (en) * 2000-05-02 2001-11-08 Sket Walzwerkstechnik Gmbh Production of a high strength austenitic steel comprises rolling or forging the steel at deformation temperatures below the solution annealing temperature, and producing a very fine
DE10201009C1 (en) * 2002-01-11 2003-10-16 Salzgitter Flachstahl Gmbh Method of manufacturing a steel product and product made thereafter
DE10259230B4 (en) 2002-12-17 2005-04-14 Thyssenkrupp Stahl Ag Method for producing a steel product
DE102004054444B3 (en) * 2004-08-10 2006-01-19 Daimlerchrysler Ag Method for making steel articles with high rigidity and plasticity comprises mechanical shaping of steel in which twinning induce plasticity or shearband induced plasticity is produced, to give increase in rigidity of at least 30 percent
DE102008005158A1 (en) 2008-01-18 2009-07-23 Robert Bosch Gmbh Automotive fuel injection component for diesel or petrol engine is machined from austenitic steel having transformation induced plasticity
CA2937283C (en) 2014-01-17 2021-04-20 Aperam Method for manufacturing a strip having a variable thickness and associated strip
DE102015112889A1 (en) * 2015-08-05 2017-02-09 Salzgitter Flachstahl Gmbh High-strength manganese-containing steel, use of the steel for flexibly rolled flat steel products and production methods together with flat steel product for this purpose

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896653A (en) * 1971-09-18 1975-07-29 Nippon Steel Corp Method for producing differential thickness steel plate
DE3343709A1 (en) * 1982-12-16 1984-06-20 Nissan Motor Co., Ltd., Yokohama, Kanagawa Process for shaping a frame part
DE19704300A1 (en) * 1997-02-06 1998-08-20 Benteler Werke Ag Procedure for manufacture of metal sheet blanks with different thicknesses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896653A (en) * 1971-09-18 1975-07-29 Nippon Steel Corp Method for producing differential thickness steel plate
DE3343709A1 (en) * 1982-12-16 1984-06-20 Nissan Motor Co., Ltd., Yokohama, Kanagawa Process for shaping a frame part
DE19704300A1 (en) * 1997-02-06 1998-08-20 Benteler Werke Ag Procedure for manufacture of metal sheet blanks with different thicknesses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HEIN O ET AL: "FLEXIBLE ROLLING OF FLAT BARS BY THE GFM PROCESS", IRON AND STEEL ENGINEER, ASSOCIATION OF IRON AND STEEL ENGINEERS. PITTSBURGH, US, vol. 72, no. 9, 1 September 1995 (1995-09-01), pages 36 - 40, XP000537310, ISSN: 0021-1559 *

Also Published As

Publication number Publication date
DE19933113C1 (en) 2000-09-07
EP1069192A2 (en) 2001-01-17

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