EP1172448A2 - Procédé et dispositif pour le refroidissement de pièces métalliques allongées mises en forme à chaud - Google Patents

Procédé et dispositif pour le refroidissement de pièces métalliques allongées mises en forme à chaud Download PDF

Info

Publication number
EP1172448A2
EP1172448A2 EP01113545A EP01113545A EP1172448A2 EP 1172448 A2 EP1172448 A2 EP 1172448A2 EP 01113545 A EP01113545 A EP 01113545A EP 01113545 A EP01113545 A EP 01113545A EP 1172448 A2 EP1172448 A2 EP 1172448A2
Authority
EP
European Patent Office
Prior art keywords
cooling
time interval
long
compensation
temperature
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Withdrawn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
EP01113545A
Other languages
German (de)
English (en)
Other versions
EP1172448A3 (fr
Inventor
Heiner Dr. Otten
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.)
HSP Hoesch Spundwand und Profil GmbH
Original Assignee
HSP Hoesch Spundwand und Profil GmbH
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 HSP Hoesch Spundwand und Profil GmbH filed Critical HSP Hoesch Spundwand und Profil GmbH
Publication of EP1172448A2 publication Critical patent/EP1172448A2/fr
Publication of EP1172448A3 publication Critical patent/EP1172448A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • C21D1/84—Controlled slow cooling
    • 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
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • 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
    • C21D9/44—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for equipment for lining mine shafts, e.g. segments, rings or props

Definitions

  • the invention relates to a method and a device for cooling by hot forming metallic long products, especially sheet piles Steel.
  • Long products of this type are after they for example by hot rolling in a rolling mill have been thermoformed, usually others Undergo production steps such as straightening.
  • Prerequisite for entering the respective after the Hot forming is in the next production step Rule, however, that the long products except for a certain one Inlet temperature have cooled.
  • the object of the invention is a method and to provide a device with which Long products, especially sheet piles inexpensive way without the risk of unwanted Let the deformation cool.
  • This task is carried out in relation to the procedure for Cooling of metallic, produced by thermoforming Long products, especially sheet piles made of steel, solved that in a first step Long products first through a cooling time interval Wetting with a cooling fluid by a temperature difference be cooled and that in a second step over an equalization time interval without the influence of a Coolant temperature compensation in the long product is produced, the steps of the gradual Cooling and temperature compensation are repeated, until a target final temperature in the long product is reached is.
  • the cooling of the long products divided into several cooling steps, with between each Cooling step a time passes which is sufficient to one Establish temperature compensation in the respective product.
  • the temperature compensation they are the same the possibly due to the previous cooling existing deformations of the workpiece as well.
  • the gradual cooling according to the invention with each intermediately long enough Temperature compensation phases is the danger of one through the Cooling caused permanent deformation of the Long product reduced to a minimum. Doing so the length of the cooling phases, the intensity of the cooling in each cooling time interval, the amount of each achieved Decrease in temperature and the length of the Compensation time interval in a simple way coordinate with each other that an optimal cooling result is achieved.
  • the length of the Compensation time interval can be many times larger than the length of the cooling time interval. Practical trials with previously hot-rolled sheet piles have shown that get good results if the length of the Compensation time interval 10 to 30 times larger is the length of the cooling time interval.
  • a cooling medium can be water or a water-based emulsion can be used.
  • the method according to the invention can be conceivable with carry out simple, inexpensive means. So are usually simple, central to the surface of the Long products directed nozzles sufficient to the to gradually cool the relevant products.
  • a device for cooling by thermoforming produced, metallic long products, in particular Steel sheet piles solved with a Conveyor for the transport of the long products over a conveyor path and spaced apart on the conveyor path mutually arranged cooling nozzles is equipped which each have a cooling fluid over a cooling time interval emerges, the time interval which for the Transport between two cooling nozzles is needed to get one Is much longer than the respective one Cooling time interval.
  • each several are located transversely to the conveying direction of the long product extending and spaced apart in the conveying direction arranged rows of several cooling nozzles available.
  • the device 1 comprises a conventional one Walking beam cooling bed 2, through which in a not illustrated hot rolling mill produced sheet piles S, S1 gradually in a direction transverse to its longitudinal extent directional funding direction Q gradually promoted become.
  • a middle section 3 of this linear conveying path 4 covered are in even distances five across the conveying direction Q extending rows R1-R5 of cooling nozzles 5 are arranged.
  • the cooling nozzles 5 of each row R1-R5 are also included positioned at regular intervals.
  • Each of the rows of cooling nozzles 5 is one Supply line 6,7,8,9,10 assigned to which the Cooling nozzles 5 of the respective row R1 - R5 each are connected together. Via a control device 11 are the supply lines 6-10 to a central Cooling water supply 12 connected.
  • the from the hot rolling mill, not shown, with a Starting temperature coming sheet piles S, S1 are from the walking beam conveyors of the also not shown Cooling bed 2 added and gradually over the Conveyed path 4 of the cooling bed 2 promoted.
  • the section of the conveying path 4 is cooled sheet pile S1 to a temperature T0 in air.
  • the control device 11 acts on it Row R1 for a first, for example 1.5 seconds continuous cooling time interval K1 with cooling water, so that the sheet pile S1 concerned by a temperature difference ⁇ T1 is cooled. Then passes between the Transport from row R1 to row R2 Compensation time interval E1, its length, for example is 20 times larger than the cooling time interval Kl. Within the compensation time interval E1, the Sheet pile S1 a uniformly distributed temperature T1 on.

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 Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP01113545A 2000-07-11 2001-06-13 Procédé et dispositif pour le refroidissement de pièces métalliques allongées mises en forme à chaud Withdrawn EP1172448A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033644 2000-07-11
DE2000133644 DE10033644C2 (de) 2000-07-11 2000-07-11 Verfahren und Vorrichtung zum Abkühlen von durch Warmverformen erzeugten, metallischen Langprodukten

Publications (2)

Publication Number Publication Date
EP1172448A2 true EP1172448A2 (fr) 2002-01-16
EP1172448A3 EP1172448A3 (fr) 2002-10-16

Family

ID=7648535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01113545A Withdrawn EP1172448A3 (fr) 2000-07-11 2001-06-13 Procédé et dispositif pour le refroidissement de pièces métalliques allongées mises en forme à chaud

Country Status (3)

Country Link
EP (1) EP1172448A3 (fr)
DE (1) DE10033644C2 (fr)
PL (1) PL191061B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105195530A (zh) * 2015-10-15 2015-12-30 武汉钢铁(集团)公司 一种轧钢用冷床的装载方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756169A (en) * 1950-10-19 1956-07-24 John A Roebling S Sons Corp Method of heat treating hot rolled steel rods
JPS498446A (fr) * 1972-05-23 1974-01-25
JPS542913A (en) * 1977-06-10 1979-01-10 Nippon Steel Corp Rapid cooling method for continuously cast medium high carbon steel billet with no cracking
DE2916218A1 (de) * 1979-04-21 1980-10-23 Florin Stahl Walzwerk Verfahren zur herstellung von walzstahlerzeugnissen mit mehrschichtigem gefuegeaufbau
BE899845A (fr) * 1984-06-06 1984-10-01 Centre Rech Metallurgique Procede pour ameliorer la rectitude d'une palplanche.
IT1295566B1 (it) * 1997-06-05 1999-05-13 Danieli Off Mecc Procedimento di trattamento termico per laminati
DE19854675C2 (de) * 1998-11-26 2002-09-26 Thyssenkrupp Stahl Ag Vorrichtung zum Kühlen eines Metallbandes, insbesondere eies Warmbreitbandes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105195530A (zh) * 2015-10-15 2015-12-30 武汉钢铁(集团)公司 一种轧钢用冷床的装载方法

Also Published As

Publication number Publication date
PL348445A1 (en) 2002-01-14
DE10033644A1 (de) 2002-01-31
DE10033644C2 (de) 2003-11-27
EP1172448A3 (fr) 2002-10-16
PL191061B1 (pl) 2006-03-31

Similar Documents

Publication Publication Date Title
EP0618020B1 (fr) Procédé pour laminer d'un feuillard
EP2931453B1 (fr) Dispositif et procédé de formage à chaud
EP3234204B1 (fr) Dispositif et procédé de traitement en continu d'une bande métallique
WO2013000001A1 (fr) Procédé de réchauffement d'un élément façonné pour une trempe à la presse effectuée par la suite et four continu destiné au réchauffement par endroits d'un élément façonné préchauffé à une température prédéfinie à une température plus élevée
EP1456421B1 (fr) Procede et dispositif pour dresser et refroidir de maniere regulee un feuillard metallique large, notamment un feuillard d'acier ou une tole, sortant d'un laminoir a chaud pour feuillards
DE60222785T2 (de) Verfahren und gerät zur herstellung von schienen
WO2017133867A1 (fr) Dispositif de refroidissement en continu et procédé de refroidissement d'une bande métallique
DE69327899T2 (de) Zwangsabschreck - und wärmebehandlungsvorrichtung
EP2722112A1 (fr) Dispositif et procédé destinés au traitement continu d'une bande métallique
WO2003023076A2 (fr) Dispositif de trempe et revenu de lamines de grande longueur
DE2940473A1 (de) Verfahren und vorrichtung zur herstellung von metallprofilen
EP3862710A1 (fr) Four de chauffage partiel des composants métalliques
DE2054777A1 (de) Abschreckvorrichtung
DE10033644C2 (de) Verfahren und Vorrichtung zum Abkühlen von durch Warmverformen erzeugten, metallischen Langprodukten
EP3941655B1 (fr) Installation et procédé pour fabriquer un feuillard à chaud métallique
DE19824741A1 (de) Verfahren und Vorrichtung zur Herstellung von Bundlagern
DE69221740T2 (de) Verfahren zum Trocknen von perforierten Ziegelsteinen und Vorrichtung zum Durchführen des Verfahrens.
EP0592957B1 (fr) Procédé et dispositif pour dresser des lamelles de bois
EP3025107B1 (fr) Procédé de traitement thermique de produits semi-finis en acier pourvus d'un revêtement
DE102008047029A1 (de) Entzunderungsvorrichtung
DE69805948T2 (de) Verfahren und Anlage zum kontinuerlichen Walzen von Knüppeln
DE60112459T2 (de) Vorrichtung zur inline-behandlung von walzerzeugnissen aus metall
AT394479B (de) Einrichtung zum induktiven erwaermen von quaderfoermigen werkstuecken
DE69211492T2 (de) Verfahren zur Herstellung von Stahlbrammen mit quadratischem Querschnitt und danach hergestellte Brammen
DE102018215492A1 (de) Verfahren zu Herstellung eines metallischen Gutes

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: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030415

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20041116

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: 20050330