EP2543744A8 - Method and device for treating a steel product and steel product - Google Patents

Method and device for treating a steel product and steel product Download PDF

Info

Publication number
EP2543744A8
EP2543744A8 EP20120401136 EP12401136A EP2543744A8 EP 2543744 A8 EP2543744 A8 EP 2543744A8 EP 20120401136 EP20120401136 EP 20120401136 EP 12401136 A EP12401136 A EP 12401136A EP 2543744 A8 EP2543744 A8 EP 2543744A8
Authority
EP
European Patent Office
Prior art keywords
steel product
treating
product
tensile strength
yield strength
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Withdrawn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
EP20120401136
Other languages
German (de)
French (fr)
Other versions
EP2543744A1 (en
Inventor
Mario Reichert
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.)
Aicher Max
Original Assignee
Aicher Max
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 Aicher Max filed Critical Aicher Max
Publication of EP2543744A1 publication Critical patent/EP2543744A1/en
Publication of EP2543744A8 publication Critical patent/EP2543744A8/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Withdrawn legal-status Critical Current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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/003—Cementite

Landscapes

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

Abstract

Die vorliegende Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Behandeln eines Stahlprodukts, insbesondere eines Walzprodukts, nach einem Warmumformprozess, insbesondere zur Verbesserung der Streckgrenze und der Zugfestigkeit. Um zu erreichen, dass bei dem Stahlprodukt insbesondere eine verbesserte Streckgrenze und eine verbesserte Zugfestigkeit realisiert werden kann, ist erfindungsgemäß vorgesehen, dass nach der Warmumformung das Stahlprodukt mit hoher Abkühlgeschwindigkeit, insbesondere mittels Wasserkühlung, abgekühlt wird, und dass nach der Abkühlung das Stahlprodukt einer Wärmebehandlung "Glühen auf kugelige Karbide" unterzogen wird.The present invention relates to a method and an apparatus for treating a steel product, in particular a rolled product, after a hot forming process, in particular for improving the yield strength and the tensile strength. In order to achieve that in the steel product, in particular an improved yield strength and an improved tensile strength can be realized, is provided according to the invention that after hot working the steel product with high cooling rate, in particular by means of water cooling, is cooled, and that after cooling, the steel product of a heat treatment "Annealing on spherical carbides" is subjected.

EP12401136A 2011-07-08 2012-07-02 Method and device for treating a steel product and steel product Withdrawn EP2543744A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110051682 DE102011051682B4 (en) 2011-07-08 2011-07-08 Method and apparatus for treating a steel product and steel product

Publications (2)

Publication Number Publication Date
EP2543744A1 EP2543744A1 (en) 2013-01-09
EP2543744A8 true EP2543744A8 (en) 2013-03-20

Family

ID=46516658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12401136A Withdrawn EP2543744A1 (en) 2011-07-08 2012-07-02 Method and device for treating a steel product and steel product

Country Status (2)

Country Link
EP (1) EP2543744A1 (en)
DE (1) DE102011051682B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ305587B6 (en) * 2014-06-12 2015-12-23 Comtes Fht A.S. Heat treatment process of bearing steel
DE102016208680A1 (en) * 2015-05-25 2016-12-01 Aktiebolaget Skf A method for restoring the structure of a steel component after heating and steel component obtained by the method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375378A (en) * 1979-12-07 1983-03-01 Nippon Steel Corporation Process for producing spheroidized wire rod
JP3215891B2 (en) * 1991-06-14 2001-10-09 新日本製鐵株式会社 Manufacturing method of steel rod for cold working
DE69326068T2 (en) * 1993-11-02 2000-04-20 Nippon Steel Corp Process for producing high-strength steel with excellent resistance to stress corrosion cracking
DE19513314C2 (en) * 1995-04-03 1997-07-03 Mannesmann Ag Process for producing a hot-worked elongated product, in particular rod or tube, from hypereutectoid steel
DE19612818C2 (en) * 1996-03-30 1998-04-09 Schloemann Siemag Ag Process for cooling warm-rolled steel profiles
SE521770C2 (en) * 1999-02-22 2003-12-02 Ovako Steel Ab Spheroidal annealing of undereutectic low alloy steel
JP4086451B2 (en) * 1999-07-21 2008-05-14 本田技研工業株式会社 Cold forging billet processing method and cold continuous forging method
JP4435953B2 (en) * 1999-12-24 2010-03-24 新日本製鐵株式会社 Bar wire for cold forging and its manufacturing method
JP3879459B2 (en) * 2001-08-31 2007-02-14 Ｊｆｅスチール株式会社 Manufacturing method of high hardenability high carbon hot rolled steel sheet

Also Published As

Publication number Publication date
DE102011051682B4 (en) 2013-02-21
EP2543744A1 (en) 2013-01-09
DE102011051682A1 (en) 2013-01-10

Similar Documents

Publication Publication Date Title
DE102006045871B4 (en) Process for thermomechanical treatment of rings produced seamlessly on radial-axial ring rolling machines
EP2647730A3 (en) A method for manufacturing a high strength formable continuously annealed steel strip, a high strength formable continuously annealed steel strip product and a steel coil
DE602007010390D1 (en) Method and device for heat treatment of steel rails
EP2365100A3 (en) Method for producing a molded part having at least two structure zones with different ductilities
ATE520798T1 (en) METHOD FOR PRODUCING A COMPONENT FROM A STEEL PRODUCT PROVIDED WITH AN AL-SI COATING AND INTERMEDIATE PRODUCT OF SUCH A METHOD
WO2016079978A8 (en) High toughness and high tensile strength thick steel plate with excellent material homogeneity and production method for same
WO2011009769A9 (en) Method and device for energy-efficient hot forming
MY164312A (en) Method of forming a component of complex shape from a sheet material
EP2761039A1 (en) A method of forming parts from sheet steel
EP2644347A3 (en) Method for the production of essentially shell-shaped fibre-reinforced plastic parts
CN102059248A (en) Method for producing titanium coil by using normal hot continuous rolling mill
EP2460595A3 (en) Device and method for producing a magnesium-based substrate coated with at least one anti-corrosive layer
EP2543744A8 (en) Method and device for treating a steel product and steel product
EP2484462A3 (en) Use of a warm upsetting method, use of a reforming tool, method for producing a forge preform and warm upsetting device
DE102009052779A1 (en) Method for manufacturing stainless steel-cold strip or other high-alloyed materials, involves cold rolling stainless steel- warm strip in single-stage rolling process
MX2014004042A (en) Steel plate and method for producing same.
CN105364412A (en) Manufacturing method of cold-drawn high-strength fine-boring rolled pipe
CN105363825A (en) Manufacturing method of cold-drawn high-precision cylinder barrel pipe
CN202865285U (en) Pressure quenching tank
DE17162984T1 (en) BODY PART OF ALUMINUM ALLOY FOR BODY STRUCTURE OF A MOTOR VEHICLE
RU2612104C2 (en) Method for production of heat-strengthened steel wire
CN103409686A (en) Production method of Q345D steel plate
DE102014114740B3 (en) Process for producing hardened steel components
EP2559498A3 (en) Method and device for producing a cold pilgered pipe
RU2500821C1 (en) Thermomechanical pipe treatment method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REICHERT, MARIO

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20130710