EP3074150A1 - Procédé de traitement thermique et dispositif de trempe pour refroidir une tôle métallique en forme de plaque ou de bande - Google Patents

Procédé de traitement thermique et dispositif de trempe pour refroidir une tôle métallique en forme de plaque ou de bande

Info

Publication number
EP3074150A1
EP3074150A1 EP14802396.3A EP14802396A EP3074150A1 EP 3074150 A1 EP3074150 A1 EP 3074150A1 EP 14802396 A EP14802396 A EP 14802396A EP 3074150 A1 EP3074150 A1 EP 3074150A1
Authority
EP
European Patent Office
Prior art keywords
sheet
nozzle opening
coolant
nozzle
passage
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.)
Granted
Application number
EP14802396.3A
Other languages
German (de)
English (en)
Other versions
EP3074150B1 (fr
Inventor
Bora Özkan
Patrick SAEMANN
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.)
LOI Thermprocess GmbH
Original Assignee
LOI Thermprocess 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 LOI Thermprocess GmbH filed Critical LOI Thermprocess GmbH
Priority to SI201431170T priority Critical patent/SI3074150T1/sl
Publication of EP3074150A1 publication Critical patent/EP3074150A1/fr
Application granted granted Critical
Publication of EP3074150B1 publication Critical patent/EP3074150B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • 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
    • 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
    • C21D9/5735—Details

Definitions

  • the invention relates to a method for heat treating plate or sheet metal sheet metal, wherein the sheet is heated and then transported continuously with transport means by a quenching device in the direction of passage and cooled with a liquid coolant, wherein with a nozzle body, the at least one nozzle opening at least one flat jet formed first coolant jet is generated, which extends transversely to the passage direction and at an angle respectively to the top and the bottom of the sheet metal, which is connected to a terminal for introducing the liquid coolant is directed.
  • the invention relates to a quenching device for cooling plate-shaped or strip-shaped metal sheet metal, with transport means for the continuous transport of the sheet in the direction of passage, with at least one nozzle body having at least one connection for introducing the liquid coolant into at least one first nozzle opening, wherein the first nozzle opening is formed as a slot, extending transversely to the passage direction and is designed such that the exiting from her coolant jet is directed at an angle respectively to the top and bottom of the sheet.
  • a continuous quenching device also called Norvierquette
  • the sheets to be cooled usually have a thickness of 2mm to 250mm.
  • the sheets which are initially heated to Austenitmaschinestemperatur, typically at 850 ° C to 950 ° C, are cooled in practice in a continuous process with a cooling medium, usually water, very quickly to produce a martensitic or bainitic structure. During the cooling process, both the top and bottom of the sheets is cooled.
  • the sheets are transported by means of transport, usually rollers, continuously in the direction of passage through the quenching device. The sheet runs between upper and lower rollers, which are arranged in pairs spaced in the direction of passage from each other.
  • nozzle bodies with a slot-shaped nozzle opening are used.
  • the slot-shaped nozzle opening is also called slot nozzle.
  • the nozzle opening may extend over the entire width of the sheet. From practice it is known to arrange three in series next to each other across the width of the sheet. to use ordered nozzle openings to quench the sheet over its width with different speed or intensity and / or duration.
  • a device for cooling plate-like or web-shaped material by producing a flat jet which is directed onto the material to be cooled is known, for example, from EP 1 420 912 B1.
  • Such a device is also called slot nozzle in practice.
  • a nozzle body has a port for introducing a liquid coolant into a nozzle opening from which the cooling medium exits to cool the plate.
  • the nozzle opening is formed between plane-parallel surfaces.
  • the nozzle body is designed in its interior such that the cooling medium does not occur vertically on the sheet, but obliquely at an angle of attack.
  • the cooling water In order to ensure that no water vapor film can form between the still very hot plate and the downstream water, the cooling water must act on the disc to be quenched with a high exit pulse. Therefore, the cooling water is under increased pressure. A water vapor film would prevent the direct contact of the sheet surface with the cooling water and significantly reduce the quenching rates. This phenomenon is known in the art as a Leidenfrost problem and, for example, applies to all quenching operations carried out with the help of water basins.
  • a nozzle opening or slot nozzle or a plurality of nozzle openings or slot nozzles arranged side by side over the width of the sheet is or are required on each side of the sheet. At least one nozzle opening extending across the width of the sheet is directed from above onto the upper side of the sheet and a further nozzle opening is directed onto the sheet on the opposite side from below.
  • Fig. 1 a longitudinal section of a quenching device according to the prior art is shown in a schematic representation.
  • the object of the invention is therefore to improve a method of the type mentioned above so that the disadvantages of the prior art are avoided and that sheets, in particular plates are cooled under the same Abkühlmannn from above and below.
  • the object is achieved by a method according to claim 1.
  • the invention is characterized in that at least one second jet of coolant formed as a flat jet is produced by means of a nozzle opening designed as a slot, that the second coolant jet parallel to the first coolant jet at a second angle respectively to the top and bottom of the Sheet is directed and that the first coolant jet and the second coolant jet are directed in the direction of passage against each other and in the direction of passage between them have a predefined distance A.
  • the first and the second nozzle openings are directly opposite each other in the passage direction and run parallel across the width of the metal sheet.
  • the impact surface of the two coolant steels is rectangular or linear.
  • the beam width can vary.
  • the invention solves the problem of unequal cooling conditions by two in the direction of passage against each other directed slot-shaped nozzle openings or slot nozzles. Over the width of the sheet, the nozzle openings are parallel to each other.
  • the invention is based on the finding that the high exit pulse of the second coolant jet, which is directed against the first coolant jet, which also impinges with a high exit pulse on the sheet, prevents the cooling medium from accumulating and then undesirably flows uncontrollably, inter alia in the direction of flow.
  • the high-energy coolant jets directed in the direction of passage of the sheet directly against each other are, produce on the surface of the sheet two mutually directed vortex and a double vortex.
  • the speed of each of the first and the second coolant jet is between 5 m / s and 60 m / s, preferably between 20 m / s and
  • the velocity of the coolant jets at the exit from the nozzle orifice in each case essentially corresponds to the impact speed of the coolant jets on the sheet.
  • the coolant jets emerging from the nozzle openings strike the sheet at an angle of attack obliquely.
  • the first angle between the first coolant jet and the surface of the sheet and the second angle between the second coolant steel and the sheet metal surface are each between 10 ° and 45 °, preferably between 20 ° and 30 °. The two angles can be adjusted depending on the respective conditions on site.
  • a quenching device for cooling plate-like or sheet-like metal sheet with transport means for the continuous transport of the sheet in the direction of passage, with at least one nozzle body having at least one connection for introducing the liquid coolant into at least a first nozzle opening, wherein the first nozzle opening is formed as a slot and extends transversely to the passage direction and is designed such that the emerging from her coolant jet is directed at a first angle respectively to the top and bottom of the sheet, characterized in that the nozzle body at least a second nozzle opening or that a second nozzle opening is formed in a second nozzle body, that the second nozzle opening is designed as a slot, that the nozzle opening is parallel to the first nozzle opening and is formed such that the a usmultide Coolant jet is directed at a second angle respectively to the top and the bottom of the sheet and that the first nozzle opening and the second nozzle opening are directed in the direction of passage against each other and have between them a predefined distance.
  • the transport of the sheet through the quenching means by means of a roller conveyor, wherein the transport means are formed as a plurality of upper and lower rollers having a distance in the direction of passage relative to each other, wherein the distance between the first and the second nozzle opening in the direction of passage smaller than the distances between three rollers adjacent in the direction of passage.
  • the distance A essentially corresponds to the distance between two rollers adjacent in the direction of passage.
  • the nozzle body can be made in two parts depending on the available space, wherein the distance between the two nozzle openings can be varied. Therefore, in the context of the invention, the first nozzle opening in a first nozzle body and the second nozzle opening are formed in a second nozzle body. Each nozzle body has a port for separately introducing the liquid coolant into the first and second nozzle openings.
  • first and the second nozzle opening or the first and the second nozzle body are configured such that the first angle and the second angle are in each case between 10 ° and 45 °, preferably between 20 ° and 30 °.
  • the first and second nozzle openings could be at a corresponding angle to the surface of the sheet.
  • the entire nozzle body could be suspended and tilted about a tilt axis.
  • the first and the second nozzle opening or the first and the second nozzle body are configured such that the first angle and / or the second angle are adjustable.
  • the invention offers the advantageous possibility that the height of the slot formed as the first and the second nozzle opening is adjustable.
  • the guide device for the coolant between the first and the second nozzle opening, that the guide device extends over the width of the sheet at least up to the sheet metal extends and has a predefined distance from the top and the bottom of the sheet and each forms a channel-shaped at the sheet edges open space for the coolant.
  • a preferred direction is impressed on the flow of the water to be removed. It is particularly advantageous if the distance of the guide device to the top and the bottom of the plate is adjustable. The distance of the guide from the top may differ from the distance of the guide from the bottom.
  • the guide device is designed so that the channel-shaped space for the coolant towards the sheet edges has a steadily increasing cross-section, such that the flow velocity of the coolant flowing transversely to the passage direction of the sheet over the width of the sheet is substantially constant , In this way, uniform quenching conditions are achieved over the width of the sheet.
  • the guide On the underside of the sheet, the guide is used to prevent water from flowing down.
  • a further development of the invention is characterized in that the guide device has at its ends open toward the sheet edges in dependence on the sheet width adjustable guide elements, which are designed such that the flow of the coolant is directed over the sheet edges.
  • An advantageous development is characterized in that between the first and the second nozzle opening, at least one support roller acts on the upper side and the lower side of the metal sheet. This prevents the sheet from sagging during quenching. Furthermore, any possible collisions of the sheet with the nozzle are avoided by the support rollers, if the beginning (head) of the sheet is bent due to production up or down.
  • FIG. 1 is a schematic representation of a longitudinal section through a quenching device according to the prior art
  • Figure 2 is a schematic representation of a longitudinal section through a first embodiment of a quenching device according to the invention.
  • 3 is a schematic representation of a section through the first embodiment of a quenching device according to FIG. 2, transverse to the passage direction of the metal sheet;
  • FIG. 4 is a schematic representation of a longitudinal section through a second embodiment of the quenching device according to the invention.
  • Figure 5 shows a schematic representation of a section through the second embodiment of a quenching device transverse to the direction of passage of the sheet.
  • FIG. 6 is a schematic representation of a section through a third embodiment of a quenching device transverse to the direction of passage of the sheet metal.
  • Fig. 1 shows schematically a quenching device according to the prior art.
  • a first nozzle body 1 has a connection 2.
  • the connection 2 serves to introduce a liquid coolant 3, in this case water, into at least one first nozzle opening 4, which is directed onto the upper side 5 of a metal sheet 6.
  • the upper first nozzle opening 4 is formed as a slot and extends transversely to the passage direction D over the entire width of the sheet 6.
  • the first nozzle opening 4 is designed such that the exiting cooling water jet at an angle ⁇ directed to the top 5 of the sheet 6 is.
  • Transport means 8 in the form of rollers serve for continuous transport of the sheet 6 in the direction of passage D.
  • Fig. 1 it is shown that the cooling water 3, which is shown hatched, jams on the top 5 of the plate 6.
  • the water accumulating on the upper side 5 of the sheet 6 flows uncontrollably in all directions, so that it can not be ensured that the sheet 6 is uniformly quenched across the width.
  • the cooling water 3, which is applied to the underside 7 of the sheet 6, flows downward, so that the cooling conditions on the top 5 and the bottom 7 of the sheet 6 differ from each other, which adversely affects the heat treatment.
  • FIG. 2 schematically shows a longitudinal section through a first embodiment of a quenching device according to the invention.
  • a nozzle body 9 has a first nozzle opening 10, which is directed at a first angle ⁇ on the upper side 5 of the sheet 6.
  • a second nozzle opening 1 1 is directed at a second angle ß on the upper side 5 of the sheet 6.
  • the first nozzle opening 10 and the second nozzle opening 1 1 are directed in the direction of passage against each other and have a predefined distance A from each other in the direction of passage.
  • transport means 8a, 8b serve in the form of rollers for the continuous transport of the sheet 6 in the direction of passage D.
  • a plurality of upper rollers 8a and lower rollers 8b form a roller conveyor.
  • the rollers have in the direction of passage D a distance R relative to each other.
  • the distance A between the first nozzle openings 10 and the second nozzle opening 11 is smaller than the distance between three rollers adjacent in the direction of passage and, in the exemplary embodiment, substantially corresponds to a distance between two rollers 8a and 8b adjacent in the direction of passage.
  • the nozzle body 9, which is located above the plate 6, has a connection 12 for introducing a liquid coolant, in this case water, into the first nozzle opening 10 and the second nozzle opening 11.
  • the connection 12 is connected to a water supply, not shown. With pumps, not shown, the pressure of the water is increased.
  • the first nozzle opening 10 and the second nozzle opening 1 1 are formed as slits and extend transversely to the passage direction D over the entire width of the sheet 6.
  • the first nozzle opening 10 and the second nozzle opening 1 1 extend across the width of the sheet parallel to each other.
  • the cooling water jets emerging from the first nozzle opening 10 and the second nozzle opening 11 form between them a cooling zone acted upon by cooling water on the upper side 5 of the sheet 6.
  • the first nozzle opening 10 and the second nozzle opening 11 are configured such that the first angle ⁇ and the second angle ⁇ are between 10 ° and 45 °, preferably between 20 ° and 30 °. Furthermore, the angle ⁇ and the angle ß are adjustable.
  • the height of the slot formed as the first nozzle opening 10 and the second nozzle opening 1 1 is adjustable.
  • a guide device 13 which channels the coolant.
  • the guide device 13 is spaced from the top 5 and the bottom 7 of the sheet 6.
  • the predefined distance H of the guide from the top 5 and bottom 7 of the plate 6 is adjustable.
  • the guide extends over the width of the sheet at least up to the sheet edges and forms a channel-shaped at the sheet edges open space for the coolant.
  • a different structural design as shown on the upper side 5 of the sheet 6 below the sheet 6. On the bottom 7 but also the construction shown above the sheet 6 could be set up.
  • FIG. 2 shows that a first nozzle body 14 with a first nozzle opening 15 is directed against the underside 7 of the metal sheet 6.
  • a second nozzle body 16 has a second nozzle opening 17.
  • the second nozzle opening 17 is directed against the first nozzle opening 15.
  • the cooling water jets emerging from the first nozzle opening 15 and the second nozzle opening 17 form between them a cooling zone acted upon by cooling water on the underside 7 of the sheet 6.
  • the structure of the lower second nozzle opening 17 corresponds to the upper second nozzle opening 1 1 and extends transversely thereto to the passage direction D and is designed such that the emerging from her coolant jet is directed at an angle ß on the bottom 7 of the plate 6.
  • the first nozzle opening 15 and the second nozzle opening 17, which are directed against the underside of the sheet, are located in separate nozzle bodies 14, 16.
  • the first nozzle opening 15 has a first connection 18 and the second nozzle opening 17 has a second connection 19 for separately introducing the liquid coolant into the first nozzle opening 15 and the second nozzle opening 17, respectively.
  • the height of the slot formed as the first nozzle opening 15 and the second nozzle opening 17 is in each case adjustable.
  • the first angle ⁇ and second angle ⁇ , under which the cooling water impinges on the underside 7 of the sheet 6, are between 10 ° and 45 °, preferably between 20 ° and 30 °. Both angles are adjustable.
  • the second nozzle body 14 and the third nozzle body 1 6 are suspended in a manner not shown and tilted about a tilt axis. Between the first nozzle opening 15 and the second nozzle opening 17 is spaced from the bottom 7 of the sheet, a lower guide 20.
  • the lower guide 20 extends at a distance H spaced from the bottom 7 of the sheet 6 over the width of the sheet 6 at least until to the sheet edges and forms a channel-shaped at the sheet edges open space for the coolant.
  • the distance H of the guide device 20 from the bottom 7 of the plate 6 is adjustable.
  • Fig. 3 shows a schematic representation of a section through the first embodiment of a quenching device according to Fig. 2 transversely to the direction of passage of the sheet.
  • the guide devices 13, 20 are designed such that the channel-shaped space for the coolant in the direction of the sheet edges has a steadily increasing cross section, such that the flow rate v v of the transverse to the passage direction D of the sheet 6 flowing coolant over the width of the sheet 6 is substantially constant.
  • Fig. 4 shows a schematic representation of a longitudinal section through a second embodiment of the quenching device according to the invention.
  • first nozzle opening 15 and a second nozzle opening 17 in separate nozzle bodies 14, 1 6 are formed.
  • Between the two oppositely directed nozzle openings 15, 17 is located between two rollers 8, a support roller 21st
  • the directed to the bottom 7 components are not shown because they are identical to the upper components.
  • the support rollers acting on the sheet 6 on both sides prevent the sheet 6 from sagging during quenching or, when a new sheet 6 is being threaded in the case of an upwardly bent sheet 6, a collision with the nozzle 16 occurs.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to the direction of passage of the sheet.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to the direction of passage of the sheet.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to the direction of passage of the sheet.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to the direction of passage of the sheet.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to the direction of passage of the sheet.
  • Fig. 5 shows a schematic representation of a section through the second embodiment of a quenching device according to Fig. 4 transversely to
  • Fig. 6 shows a schematic representation of a section through a third embodiment of a quenching device transverse to the direction of passage of the sheet. Only the upper components are shown. Below the sheet 6 are identical components.
  • the guide device 20 shown in FIG. 6 has guide elements 22, 23 which are adjustable at their ends which are open towards the sheet metal edges as a function of the sheet metal width.
  • the adjustable guide elements 22, 23 are designed such that the flow of the coolant is directed over the sheet edges.
  • the position in which the guide elements 22, 23 can be moved is shown in dashed lines.
  • nozzle openings in the nozzle body at an angle to the vertical axis of the nozzle body.
  • a liquid cooling medium any other suitable cooling medium can be used except water.
  • the guide device can be curved. LIST OF REFERENCE NUMBERS

Abstract

L'invention concerne un procédé de traitement thermique d'une tôle métallique en forme de plaque ou de bande, qui consiste à chauffer la tôle (6) puis à la transporter à l'aide de moyens de transports en continu dans la direction de passage (D), par l'intermédiaire d'un dispositif de trempe, et à la refroidir avec un fluide de refroidissement liquide. L'invention permet, à l'aide d'un corps de buse (1) qui comporte au moins un orifice de buse (4) réalisé sous la forme d'une fente et raccordé à un raccord (2) pour introduire le fluide de refroidissement liquide, la production d'au moins un premier jet de fluide de refroidissement réalisé sous la forme d'un jet plat, ce premier jet de fluide de refroidissement s'étendant transversalement à la direction de passage (D) et étant dirigé respectivement sur la face supérieure (5) et la face inférieure (7) de la tôle (6) selon un premier angle (α) respectivement sur la face supérieure. Selon l'invention, au moyen d'un second orifice de buse (11, 17) réalisé sous la forme d'une fente, au moins un second jet de fluide de refroidissement réalisé sous la forme d'un jet plat est produit. Le second jet de fluide de refroidissement est dirigé sur la largeur de la tôle respectivement sur la face supérieure (5) et la face inférieure (7) de la tôle (6) parallèlement au premier jet et selon un second angle (β). En outre, le premier jet et le second jet de fluide de refroidissement sont dirigés l'un par rapport à l'autre dans la direction de passage (D) et sont espacés d'une distance (A) prédéfinie dans la direction de passage (D). Entre le premier et le second jet de fluide de refroidissement, il se forme sur la face supérieure et la face intérieure une zone de refroidissement à laquelle le fluide de refroidissement est appliqué et au niveau de laquelle la tôle est refroidie de manière intensive.
EP14802396.3A 2013-11-25 2014-11-18 Procédé de traitement thermique et dispositif de trempe pour refroidir une tôle métallique en forme de plaque ou de bande Active EP3074150B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201431170T SI3074150T1 (sl) 2013-11-25 2014-11-18 Postopek toplotne obdelave in naprava za gašenje za hlajenje kovinskih plošč ali trakov

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013019619.1A DE102013019619A1 (de) 2013-11-25 2013-11-25 Verfahren zum Wärmebehandeln und Abschreckeinrichtung zum Kühlen von platten- oder bahnförmigem Blech aus Metall
PCT/EP2014/074948 WO2015075041A1 (fr) 2013-11-25 2014-11-18 Procédé de traitement thermique et dispositif de trempe pour refroidir une tôle métallique en forme de plaque ou de bande

Publications (2)

Publication Number Publication Date
EP3074150A1 true EP3074150A1 (fr) 2016-10-05
EP3074150B1 EP3074150B1 (fr) 2019-01-16

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EP14802396.3A Active EP3074150B1 (fr) 2013-11-25 2014-11-18 Procédé de traitement thermique et dispositif de trempe pour refroidir une tôle métallique en forme de plaque ou de bande

Country Status (5)

Country Link
EP (1) EP3074150B1 (fr)
DE (1) DE102013019619A1 (fr)
SI (1) SI3074150T1 (fr)
TR (1) TR201905438T4 (fr)
WO (1) WO2015075041A1 (fr)

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EP2910653A1 (fr) * 2014-02-22 2015-08-26 Josef Stutz Procédé et dispositif de refroidissement de bandes métalliques
WO2017115110A1 (fr) * 2015-12-30 2017-07-06 Arcelormittal Procédé et dispositif de refroidissement d'un substrat métallique
DE102017104550A1 (de) * 2017-03-04 2018-09-06 Loi Thermprocess Gmbh Einrichtung und Verfahren zum Abkühlen eines Flacherzeugnisses
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DE102021212523A1 (de) 2021-05-31 2022-12-01 Sms Group Gmbh Forcierte Luftkühlung zur Kühlung von Langstahlerzeugnissen

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TR201905438T4 (tr) 2019-05-21
SI3074150T1 (sl) 2019-08-30
WO2015075041A1 (fr) 2015-05-28
DE102013019619A1 (de) 2015-05-28
WO2015075041A8 (fr) 2015-08-27
EP3074150B1 (fr) 2019-01-16

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