EP0875304B1 - Procédé et agrégat de refroidissement pour refroidir des produits de laminage chauds, notamment des bandes larges laminées à chaud - Google Patents

Procédé et agrégat de refroidissement pour refroidir des produits de laminage chauds, notamment des bandes larges laminées à chaud Download PDF

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Publication number
EP0875304B1
EP0875304B1 EP98107703A EP98107703A EP0875304B1 EP 0875304 B1 EP0875304 B1 EP 0875304B1 EP 98107703 A EP98107703 A EP 98107703A EP 98107703 A EP98107703 A EP 98107703A EP 0875304 B1 EP0875304 B1 EP 0875304B1
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EP
European Patent Office
Prior art keywords
cooling
coolant
pressure
rolled stock
convection
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.)
Expired - Lifetime
Application number
EP98107703A
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German (de)
English (en)
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EP0875304A3 (fr
EP0875304A2 (fr
Inventor
Meinert Dipl.-Ing. Meyer
Uwe Dipl.-Ing. Plociennik
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.)
SMS Siemag AG
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SMS Demag AG
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Publication date
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Publication of EP0875304A3 publication Critical patent/EP0875304A3/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices

Definitions

  • the invention relates to a method for cooling hot rolled rolling stock, in particular For cooling hot broadband on both sides, using forced convection when exchanging heat between the rolling stock and the cooling medium using a Pressurized water flow made in a pressure room and convection room and the rolling stock by specifically controlling the intensity of the forced convection is cooled, which is independent of one another by relative coordination adjustable parameters, such as dwell time of the rolling stock as it passes through the Pressure room and the subsequent convection room as well as quantity, pressure and Controlled flow rate of the cooling medium and heat from this from the rolling stock up to a safety distance from the boiling point for avoidance unstable film evaporation is recorded.
  • the invention relates also an apparatus for performing the method.
  • New technologies in ferritic rolling of hot wide strip mean that between the final stands are cooled intensively to low final rolling temperatures if the distances between the scaffolds are not too large.
  • rolling thin Dimensions at which the hot strip reel to avoid restless conveyor belt must be arranged closer to the finishing stand water cooling sections with higher cooling intensity are also required.
  • DE 39 27 276 A1 discloses a method for hardening steel with the aid of liquid cooling media. It follows from this that with the previously known methods for hardening steel with the aid of liquid cooling media, only a small hardening depth, based on the edge zone, is achieved even with rods with small rod diameters.
  • the method according to DE 39 29 276 A1 not only enables a considerable increase in the hardening depth, but also a complete hardening, in particular of rod-shaped rolled products up to 70 mm in diameter, in a particularly simple manner in that the rolled product made of steel immediately after the rolling process supplied with cooling media cooling section and exposed to high flow velocities, expediently the flow velocities in the cooling section are so high that heat transfer numbers greater than or equal to 50,000 W / m 2 K are generated and the rolling stock is cooled therein until the average temperature of the rolling stock cross section is below the MS temperature, so that after leaving the cooling section through the temperature compensation over the cross section, the austenite still present in the core is converted into intermediate stage structure bainite, while at the same time in the martensitic n A large part of the overlapping thermal and transformation stresses is reduced by the temperature rising again to a maximum of MS temperature.
  • the heat exchange part consists of a tube with a rectangular cross-section, with wear-resistant guide elements is lined, the opposite of the broad sides of the rolling stock Inner surfaces of the guide elements over the length of the heat exchange part have a variable clear height, while the Narrow sides of the rolling stock opposite inner surfaces of the guide elements a constant clear width over the length of the heat exchange part exhibit.
  • EP 0 266 302 B1 discloses a method for cooling hot rolled rolling stock, with / without direct patenting, for pressurized water within a pressurized room is pressed onto the hot rolled surface of the rolling stock between the accumulation edges.
  • the cooling unit is pressurized with a quantity of pressurized water, which is preferably in balance with the amount of heat to be extracted from the rolling stock stands to with the removal of heat by heating pressurized water in the pressure chamber a convection refrigerator and by removing heat from the on Pressurized water-steam mixture, evaporative heat given off, preferably up to the boiling point of the pressurized water, the desired cooling temperature of the To achieve rolling stock while cooling in pressurized water as well as in one Control pressurized water-steam mixture.
  • the cooling unit exists from the pressure chamber of a convection refrigerator, the so-called convection pressure chamber between damming edges, in the warm rolling stock, mainly by convection, from inflowing and onto the hot rolled surface of the rolling stock Pressed water under pressure, preferably up to the boiling point of the pressurized water is withdrawn.
  • the cooling unit also consists of the pressure chamber of an evaporative cooling section, the so-called evaporative pressure chamber between the stowage edges, in which the rolling stock primarily by heat of vaporization, from the flowing through and onto the rolling stock surface pressed heat-steam mixture further heat is removed.
  • EP 0 287 503 B1 relates to a method and a cooling unit for cooling of a continuous product and contains characteristics through which the suggestions be further developed according to EP 0 266 302 B1, specifically with the process engineering Features that heat extraction in the convection refrigerator and in the evaporative cooling section of the pressure chamber in the pressure cooling unit except with the predetermined inflow of cooling pressure water and the regulated inflow Amount of pressure water in the convection cooling section, with an additional, regulated inflow of guide pressure water into the evaporative cooling section and further with one, in the area of the high steam content in the the hot water-steam mixture flowing through the evaporative cooling section inflowing proportion of condensation water is guided.
  • the device is described in such a way that in addition to the cooling and guiding pressure water inflow in the convection cooling section in the evaporative cooling section further inlet pressurized water inflows and further condensation pressurized water inflows are arranged.
  • Document EP-B-0 266 302 discloses a method for cooling hot wide strip, in which forced convection during heat exchange between Rolled stock and cooling medium with the help of a pressurized water flow in a pressure room and convection space and the rolling stock by targeted control the intensity of the forced convection is cooled, the intensity of the Forced convection can be set independently of one another by relative coordination Parameters such as the dwell time of the rolling stock as it passes through the pressure chamber and the subsequent convection space as well as the quantity, pressure and flow velocity controlled by the cooling medium and heat from this the rolling stock is picked up.
  • the object of the present invention is compared to this prior art based, a significantly simplified process for cooling warm whale Rolling stock and a corresponding device to specify at largely reduced cooling section length for flat material, especially for hot wide strip with thin dimensions, better through high intensity of cooling To achieve cooling results.
  • the invention provides that to control the dwell time of the rolling stock in the printing room at a given rolling speed the length of the in the printing room trained cooling section is set changeable in the rolling direction.
  • a safety margin to the boiling point of the cooling medium e.g. ⁇ T> 25 ° C.
  • the invention provides that the amount of per unit time coolant flowing into the pressure chamber through a variable cross-section Nozzle gap is set, which is also the speed and determined the direction of the incoming cooling medium. additionally the amount can be changed by varying the inlet pressure.
  • the forced convection by flow cooling according to the invention a known pressure and convection room, but between an adjustable nozzle gap and one adjoining the convection room Diffuser is designed to remove the cooling medium. It can be targeted the parameters that can be set independently of one another are thus coordinated be that the cooling medium heat up to the boiling point is withdrawn without evaporation occurring. Then you can the cooling medium after absorbing heat from the rolling stock in the area of Pressure increase is subtracted from the diffuser through the existing openings become.
  • the cooling medium in front of the terminal diffuser Convection area with increased speed and reduced flow pressure flows through, which also limits the length of the pressure chamber and is preferably set to be variable in the axial direction.
  • the point can quickly pass through the length setting of the pressure chamber at which the unstable film evaporation begins and the so-called suffering frost point is achieved.
  • the invention can also be used be that the pressure chamber is transverse to the flow direction of the cooling medium using parallel guide elements into individual, side by side Channels is divided. So far, this has not resulted or only with great Possibility achievable by applying different amounts to the individual Flow channels cooling over the bandwidth, for example, to influence flatness and especially peripheral cooling or subcooling control while minimizing the consumption of cooling medium.
  • each cooling channel with regard to exposure to The pressure and quantity of the cooling medium can be controlled individually.
  • the setting of the The cooling temperature is adjusted by adjusting the nozzle gap and also with the cooling medium pressure.
  • Another advantage of this invention is that between surfaces of the rolling stock and walls of the pressure chamber formed gap-shaped flow areas and are pressed by this cooling medium at high pressure, such that the Rolled material is guided between liquid films formed by the cooling medium.
  • An embodiment of the device according to the invention provides that the diffuser in the area of increased cooling medium pressure heated outlets for pulling off Has cooling medium.
  • the Device above or below and above and below the rolling stock to form a be box-shaped channel with connections for cooling medium and consist of flat plates into the flow channels on the sides facing the rolling stock are incorporated or trained using attached strips.
  • an embodiment essential to the invention provides that the device a scraper with a nozzle gap, for example in the form of a screw is which coolant collects.
  • the device for cooling hot rolled rolling stock 1, in particular from Hot wide strip with a for heat exchange between rolling stock 1 and cooling medium preferably designed to raise the suffering frost temperature 10 and the subsequent pressureless convection chamber 13 with means to form a pressure medium flow and to control the intensity
  • the forced convection is designed so that the pressure chamber 10 on the entry side of the rolling stock 1, an inflow 32 for the cooling medium in the form of a adjustable quantity and pressure nozzle gap 11 and a terminal diffuser 12 with means 16 for withdrawing the cooling medium.
  • a damming element delimiting the pressure chamber 10 33 arranged, which forms the beginning of the convection space 13.
  • the adjustable nozzle gap 11 By the interaction of the adjustable nozzle gap 11 with the in the Length adjustable pressure chamber 10 and the subsequent pressureless convection room 13 and the final diffuser 12 and with removal 16 of the Cooling medium can by adjusting the dwell time of the rolling stock 1 at Pass through the pressure chamber 10 and convection chamber 13 (e.g. by changing the length of the cooling section) as well as quantity, pressure and flow velocity the intensity of forced convection is controlled in a reproducible manner are and the cooling medium heat from the rolling stock preferably with a sufficient distance to the boiling point limit to avoid the unstable Film evaporation are transmitted.
  • the heat transfer is therefore exact adjustable.
  • the predetermined rolling speed can be the axial length of the pressure chamber 10 trained cooling section can be set changeable, for example by a length adjustable Damming element 33, which is also the beginning of the convection space 13.
  • the cooling device which is shown only once above the hot strip 1 in FIG. 1 is, can also be mirror-symmetrically advantageous from the bottom of the rolling stock 1 be arranged in an identical manner.
  • the nozzle gap 11 has a wedge 34 as an actuator. By setting it According to arrow 38, the amount and / or pressure of the inflow 32 conveyed cooling medium can be set. The well-known Disadvantages of spray nozzles that tend to become blocked are completely avoided.
  • the cooling device consists of a flat plate 23 which on the side facing the rolling stock 1 has flow channels 22.
  • the size and The number of these channels 22 varies according to the width of the rolling stock.
  • Corresponding the illustration shows the flow channels 22 between rectangular band guide rails 21 arranged with a flat surface to the rolling stock 1. So that at a cooling between these channels 22 and the rolling stock 1 at the same time The rolling stock 1 is guided.
  • the adjustability of the flow channels provides a further advantageous design in the longitudinal direction in height, which can also be wedge-shaped. Thereby can target the flow velocity and consequently the cooling effect can be varied or adjusted.
  • the cooling device shown and described can be above or below or on both sides of the rolling stock 1 and with a short guide, for example between two roll stands are used.
  • Fig. 1 also shows the arrangement of a wiper 36 for cooling medium and its deduction according to arrow 39.
  • This scraper member 36 has a collecting space preferably in the form of a snail, the excess cooling medium catches safely.
  • the device consists of a number of Water boxes 35, which are arranged above or below the flat product 1. she have inflows 32 for cooling medium to be introduced under high pressure and have mushroom-shaped or wedge-shaped outlet control members 34. they form also circular at its periphery or straight in another variant Nozzle column 11, from which the cooling medium under high pressure in the convection pressure chambers 10 exits.
  • the shafts are provided with short central holes and have an inlet hole across it, so that pressurized water from the holes emerges below the wedges 34 and in the pressure chambers 10 under forced convection has a cooling effect.
  • the cooling medium under pressure in the water tank flows through adjustable Nozzle gaps 11 depending on the setting of the rotationally symmetrical wedges 34 or of the straight wedge 38 in each of the flat product 1 and the box wall formed channel 10 at high speed transverse to the rolling direction and takes one by forced convection depending on the setting of the cooling parameters large amount of heat. So that between the rolled product 1 and the box wall a high pressure can develop in the area of the rolled ends the walls of the water boxes 35 directed towards the rolling stock 1 optionally adjustable labyrinth seals 40 attached.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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 Treatments In General, Especially Conveying And Cooling (AREA)

Claims (17)

  1. Procédé pour refroidir des produits laminés (1) chauds, en particulier pour refroidir les deux côtés d'une bande large laminée à chaud, dans lequel on réalise une convexion forcée lors de l'échange de chaleur entre le produit laminé (1) et un agent de refroidissement à l'aide d'un flux d'eau sous pression dans une chambre de pression (10) et une chambre de convexion (13) et le produit laminé (1) est refroidi par une commande ciblée de l'intensité de la convexion forcée, celle-ci étant commandée par le réglage relatif de paramètres réglables indépendamment les uns des autres, tels que le temps de séjour du produit laminé (1) lors de son passage dans la chambre de pression (10) et la chambre de convexion (13) consécutive ainsi que la quantité, la pression et la vitesse d'écoulement de l'agent de refroidissement et ce dernier absorbant de la chaleur du produit laminé (1) jusqu'à une certaine distance de sécurité par rapport au point d'ébullition en vue d'éviter une évaporation instable d'un film, caractérisé en ce que pour commander le temps de séjour du produit laminé (1) dans la chambre de pression (10) à une vitesse de laminage prédéfinie, la longueur de la zone de refroidissement réalisée dans la chambre de pression (10) est réglée de manière variable dans le sens de laminage et en ce que pour la commande du temps de séjour du produit laminé (1) dans la chambre de convexion (13) à une vitesse de laminage prédéfinie, la longueur de la zone de refroidissement réalisée dans la chambre de convexion (13) est réglée de manière variable dans le sens de laminage.
  2. Procédé selon la revendication 1, caractérisé en ce que l'agent de refroidissement dans la chambre de pression ou de convexion (10 ou 13) est guidé dans le sens de laminage ou transversalement par rapport à celui-ci.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la quantité d'agent de refroidissement qui entre par unité de temps dans la chambre de pression (10) est réglée par une fente (11) d'injection dont la section peut être modifiée, qui détermine simultanément la vitesse et le sens de l'agent de refroidissement qui entre.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que dans la zone de la chambre de pression (10), la formation de vapeur ou d'un mélange de vapeur-eau est empêchée par un élément de retenue (33) avec augmentation de la pression de l'agent de refroidissement et en ce que l'agent de refroidissement est éliminé via un diffuseur (12) après avoir absorbé de la chaleur du produit laminé (1) dans la zone de l'augmentation de la pression.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'agent de refroidissement s'écoule à travers une chambre de convexion (13) située en amont du diffuseur (12) qui se trouve en position d'extrémité, à une vitesse élevée et une pression basse, qui délimite simultanément la longueur de la chambre de pression (10) et qui est réglée de manière variable dans le sens de laminage, la section d'écoulement de la chambre de pression (10) étant réglée par une modification de la distance entre la surface du produit laminé (1) et au moins une paroi (20) de la chambre de pression (10).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la chambre de pression (10) est divisée en canaux (22) adjacents transversalement par rapport au sens d'écoulement de l'agent de refroidissement en utilisant des éléments de guidage (21) parallèles et en ce que la section d'écoulement dans le chambre de pression (10) ou dans les canaux (22) situées dans celle-ci est réglée par zones, dans le sens d'écoulement, en forme de clavette.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que des zones d'écoulement en forme de fente sont formées entre les surfaces du produit laminé (1) et les parois de la chambre de pression (10) et que l'agent de refroidissement est comprimé à haute pression par celles-ci, de telle manière que le produit laminé est guidé entre des films de liquide formés par l'agent de refroidissement.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que, par une alimentation différente des canaux (22), le refroidissement est commandé sur la largeur de la bande, en particulier pour influencer la planéité ainsi que le refroidissement et le sous-refroidissement des bords et que la consommation en agent de refroidissement est simultanément réglée à un minimum.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé par son utilisation lors du laminage de brames minces selon un concept de laminage sans fin.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé par son utilisation en tant que refroidissement de cage intermédiaire, la température du produit laminé étant commandée de telle manière qu'un laminage ferritique est possible.
  11. Dispositif pour le refroidissement d'un produit laminé (1) chaud, en particulier pour refroidir les deux côtés d'une large bande laminée chaude, avec une chambre de pression (10) et une chambre de convexion (13) formées pour une convexion forcée pour l'échange de chaleur entre le produit laminé (1) et l'agent de refroidissement avec des moyens pour réaliser un écoulement d'agent de refroidissement ainsi que pour la commande de l'intensité de la convexion forcée, la chambre de pression (10) présentant du côté entrée du produit laminé (1) une alimentation (32) pour l'agent de refroidissement sous forme d'une fente d'injection (11) réglable en quantité et en pression et un diffuseur (12) en position d'extrémité avec des moyens (16) pour évacuer l'agent de refroidissement et un élément de retenue (33) est disposé en amont du diffuseur (12) dans le sens de laminage, délimitant la chambre de pression (10), qui représente le début de la chambre de convexion (13), caractérisé en ce que l'élément de retenue (33) est réalisé de manière réglable en longueur avec une modification de la longueur de la chambre de pression (10) et de la chambre de convexion (13) et en ce que la fente d'injection (11) présente une clavette (34) comme élément de réglage.
  12. Dispositif selon la revendication 11, caractérisé en ce que le diffuseur (12) présente des évacuations (16) dans la zone de la pression élevée de l'agent de refroidissement pour l'évacuation de l'agent de refroidissement chauffé.
  13. Dispositif selon la revendication 11 ou 12, caractérisé en ce qu'il est réalisé avec des raccords pour l'agent de refroidissement au-dessus ou au-dessous et de préférence au-dessus et au-dessous du produit laminé (1) en formant un canal (35) en forme de caisson et constitué de plaques (23) planes dans lesquelles sont usinés, dans les côtés tournés vers le produit laminé (1), des canaux d'écoulement (22) ou ceux-ci sont réalisés au moyen de cadres qui y sont placés.
  14. Dispositif selon l'une quelconque des revendications 11 à 13, caractérisé en ce qu'il est suivi d'un organe de raclage (36) avec une fente d'injection, par exemple sous forme d'une spirale, qui récupère l'agent de refroidissement.
  15. Dispositif selon l'une quelconque des revendications 11 à 14, caractérisé en ce que le diffuseur (12) présente en son extrémité un autre élément de retenue (40).
  16. Dispositif selon l'une quelconque des revendications 11 à 15, caractérisé en ce que le dispositif de refroidissement et/ou ses éléments de retenue (23, 40) et/ou ses canaux d'écoulement (22) ou ses cadres d'écoulement sont réglables dans le sens vers la surface du produit laminé (1).
  17. Dispositif selon l'une quelconque des revendications 11 à 16, caractérisé en ce que les canaux d'écoulement (22) formés entre les éléments de guidage (21) présentent une disposition en biais ou même sinueuse.
EP98107703A 1997-05-02 1998-04-28 Procédé et agrégat de refroidissement pour refroidir des produits de laminage chauds, notamment des bandes larges laminées à chaud Expired - Lifetime EP0875304B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19718530A DE19718530B4 (de) 1997-05-02 1997-05-02 Verfahren zum Kühlen von walzwarmem Walzgut und Vorrichtung zur Durchführung des Verfahrens und Verwendung der Vorrichtung
DE19718530 1997-05-02

Publications (3)

Publication Number Publication Date
EP0875304A2 EP0875304A2 (fr) 1998-11-04
EP0875304A3 EP0875304A3 (fr) 2002-01-02
EP0875304B1 true EP0875304B1 (fr) 2003-12-10

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EP98107703A Expired - Lifetime EP0875304B1 (fr) 1997-05-02 1998-04-28 Procédé et agrégat de refroidissement pour refroidir des produits de laminage chauds, notamment des bandes larges laminées à chaud

Country Status (4)

Country Link
EP (1) EP0875304B1 (fr)
AT (1) ATE255965T1 (fr)
DE (2) DE19718530B4 (fr)
ES (1) ES2212167T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215118C1 (de) * 2002-04-05 2003-06-12 Rainer Menge Anordnung zum Kühlen wärmebehandelter Drähte
DE102008032932A1 (de) * 2008-07-12 2010-01-14 Sms Siemag Aktiengesellschaft Verfahren zum Längsführen eines Walzgutes, insbesondere eines warmgewalzten Stahlbandes und Warmwalzwerk zur Durchführung des Verfahrens
DE102012211454A1 (de) 2012-07-02 2014-01-02 Sms Siemag Ag Verfahren und Vorrichtung zur Kühlung von Oberflächen in Gießanlagen, Walzanlagen oder sonstigen Bandprozesslinien
DE102012223848A1 (de) 2012-12-19 2014-06-26 Sms Siemag Ag Vorrichtung und Verfahren zum Kühlen von Walzgut

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2543750A1 (de) * 1974-10-04 1976-04-15 Centre Rech Metallurgique Verfahren und vorrichtung zur verbesserung der qualitaet bei profilstahl
ATE15615T1 (de) * 1981-05-13 1985-10-15 Florin Stahl Walzwerk Druckkuehlrohr zur direkten intensivkuehlung von walzgut.
DD244298B1 (de) * 1985-12-11 1988-02-10 Florin Stahl Walzwerk Waermeaustauschteil mit rechteckigem querschnitt fuer ein druckkuehlrohr
DE3626741A1 (de) * 1986-08-07 1988-02-18 Krenn Walter Kuehlaggregat und verfahren zum abkuehlen walzwarmen walzguts, mit/ohne direktpatentieren, in druckkuehlwasser
JPS63101017A (ja) * 1986-10-15 1988-05-06 Kawasaki Steel Corp 高温鋼板の冷却装置
DE3708128A1 (de) * 1987-03-13 1988-09-22 Krenn Walter Verfahren und druckkuehlaggregat zum gefuehrten abkuehlen geformten, schweren bis leichten, heissen, durchlaufenden produktionsguts aus stahl und metall in druckwasser
GB8804962D0 (en) * 1988-03-02 1988-03-30 Ashlow Eng Ltd Pressure pipe
DE3927276A1 (de) * 1989-08-18 1991-02-21 Schloemann Siemag Ag Verfahren zum haerten von stahl mit hilfe fluessiger kuehlmedien
DE4009228A1 (de) * 1990-03-22 1991-09-26 Krenn Walter Verfahren und druckkuehlaggregat zum gleichzeitig unterschiedlichen abkuehlen ausgewaehlter bereiche durchlaufenden produktionsguts, mit flach- oder profilquerschnitt, aus stahl und anderem
DE4429203C2 (de) * 1994-08-18 1997-05-28 Krenn Walter Verfahren und Druckkühlaggregat zum Abkühlen eines durchlaufenden Produktionsgut aus Stahl oder anderem

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DE19718530B4 (de) 2005-02-03
EP0875304A3 (fr) 2002-01-02
ES2212167T3 (es) 2004-07-16
EP0875304A2 (fr) 1998-11-04
DE59810374D1 (de) 2004-01-22
ATE255965T1 (de) 2003-12-15
DE19718530A1 (de) 1998-11-12

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