EP3302837A1 - Procédé de trempe homogène sans contact de surfaces à tremper non continues et dispositif à cet effet - Google Patents

Procédé de trempe homogène sans contact de surfaces à tremper non continues et dispositif à cet effet

Info

Publication number
EP3302837A1
EP3302837A1 EP16727320.0A EP16727320A EP3302837A1 EP 3302837 A1 EP3302837 A1 EP 3302837A1 EP 16727320 A EP16727320 A EP 16727320A EP 3302837 A1 EP3302837 A1 EP 3302837A1
Authority
EP
European Patent Office
Prior art keywords
tempering
nozzle
temperature
tempered
edge
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
EP16727320.0A
Other languages
German (de)
English (en)
Other versions
EP3302837B1 (fr
Inventor
Markus Brummayer
Kurt Etzelsdorfer
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.)
Voestalpine Stahl GmbH
Original Assignee
Voestalpine Stahl 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
Priority claimed from DE102015108514.3A external-priority patent/DE102015108514A1/de
Priority claimed from DE102015113056.4A external-priority patent/DE102015113056B4/de
Application filed by Voestalpine Stahl GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP3302837A1 publication Critical patent/EP3302837A1/fr
Application granted granted Critical
Publication of EP3302837B1 publication Critical patent/EP3302837B1/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
    • 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
    • B21B45/004—Heating the product
    • 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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02—Supplying steam, vapour, gases, or liquids
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/008—Martensite
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/007—Cooling of charges therein

Definitions

  • the invention relates to a method for the homogeneous, contactless tempering of surfaces to be tempered, primarily non-continuous surfaces and a device therefor.
  • tempering in many areas are needed, for example, when flat plates must be cooled or heated, but also if z. B. glass surfaces in the glass production or processor units o. ⁇ . Must be cooled or heated.
  • Previous cooling systems are either very expensive, or kept fairly simple, z. B. by the blowing of air or other fluids, especially water or oil, which is disadvantageous in that form on the surface always ungünsti ⁇ ge, uncontrolled flow conditions, which then become a problem when a particular defined Temperie ⁇ tion is required.
  • the object of the invention is reproducible, systematic, homogeneous non-contact tempering of primarily non-continuous hot surfaces to create a defined surface temperature within a few seconds.
  • cooling ⁇ media used are atmospheric gases, mixed gases but also water or other fluids.
  • the heating media used are preferably hot gases.
  • the invention provides a low investment cost with ge ⁇ wrestle operating costs, high system availability, high flexibility and easy integration into existing production processes pro ⁇ should be made possible.
  • this is achieved in that the temperature controlling ⁇ de surface can be moved by means of robots or linear drives in the X, Y or Z plane, wherein any Before ⁇ allowapistra ektorien and velocities of possible surfaces to be cooled.
  • the oscillation around a rest position in the X and Y plane is preferred.
  • the further oscillation in the Z plane ie the height
  • a one- or two-sided cooling is readily possible.
  • the temperature control units according to the invention consist of nozzles which are arranged at a certain distance from each other.
  • the geometry of the nozzles that is, the outlet opening, is quite simple, from simple cylindrical geometries to complex geometrically defined designs.
  • the tempering unit is designed so that the effluent from the hot plate ⁇ de medium finds sufficient space and thus no crossflow on the surface to be cooled arises.
  • the intermediate spaces between the nozzles or nozzle rows can be acted upon by an additional transverse flow in order to increase the tempering rate and thus to virtually suck off the tempering medium which flows out of the hot plate.
  • this crossflow should not affect the inflowing tempering of the nozzle to the plate so the free jet.
  • the flow pattern to be preferred follows on the surface to be cooled of a honeycomb-like structure.
  • the cooling is preferably carried out with at least one cooling bar, wherein the cooling bar is a plate-like or cylindrical element, which can additionally taper from a base to a discharge bar, wherein in the Outlet bar is introduced at least one nozzle.
  • the cooling bar is a plate-like or cylindrical element, which can additionally taper from a base to a discharge bar, wherein in the Outlet bar is introduced at least one nozzle.
  • Sword here is hollow, so that the nozzle can be supplied from the hollow sword out with a tempering fluid.
  • the nozzle (s) may be spaced apart from each other with wedge-like elements, whereby the wedge-like elements may also narrow the space for the flowing fluid to the nozzle.
  • a plurality of swords arranged side by side, wherein the swords are offset from each other.
  • a temperature control likewise takes place with staggered points relative to one another, wherein the points cool homogeneously in one another and the discharged fluid is sucked into and removed from the area between two swords.
  • the element to be tempered z.
  • a to be tempered plate in this case moves so that the movement of the plate on the one hand and the staggered arrangement of the nozzle walls ⁇ hand, ensures that the Temperiertluid flows over all areas of the plate, so that a homogeneous temperature is aimed ER.
  • Figure 1 is a plan view of a plurality of parallel zuei ⁇ Nander arranged Temperierhistern;
  • FIG. 2 shows the arrangement of the tempering blades according to FIG.
  • FIG. 3 shows a longitudinal section through a tempering blade corresponding to the section line CC in FIG. 2;
  • Figure 4 shows the detail enlargement D of Figure 3 showing the nozzles;
  • FIG. 5 shows the arrangement of the tempering blades in a schematic perspective view
  • Figure 6 is an enlarged detail of the edge region of Tempe ⁇ rierthroter with an offset within the
  • Figure 7 is a perspective view of an inventive
  • Temperierthrotern which are summarized in a tempering block
  • FIG 9 is a view of Temperierhistern according to the invention in the interior thereof;
  • Figure 10 indicated the Temperierhister with the nozzles, wherein a plate to be tempered with the temperature ⁇ distribution and the fluid temperature distribution is shown;
  • 11 shows the arrangement of Figure 10, showing the VELOCITY ⁇ speed distribution;
  • FIG. 12 schematically shows the arrangement of two opposing ones
  • the inventive device for tempering 1 has to ⁇ least a Temperierhist 2.
  • the Temperierhist 2 is formed elongate flap-like and has a Tem ⁇ perierhetbasis 3, two extending away from the Temperierhistbasis Temperierhistbreitease 4, two Temperierhetschmaleffect 5, which connect the Temperierhistbreit ⁇ sides , and a free nozzle edge 6.
  • the Temperierhist 2 is hollow sword cavity 7 with a temperature control, wherein the cavity of the Temperierhistbreiticide 4, the TemperierhistSchmalkeep 5 and the nozzle edge is enclosed 6, wherein the tempering ⁇ sword at the base 3 is open.
  • the Temperierhistba- sis 3 With the Temperierhist 3, the Temperierhist is inserted into a Temperierhistrahmen 8, wherein the Temperierhistrahmen 8 can be placed on a hollow Fluidzu Georgiasten.
  • a plurality of nozzles or openings is provided, which extend into the cavity 7 and thus make it possible for fluid to flow out of the cavity outward through the nozzles 10.
  • the nozzle channels 11 extend into the cavity 7, which the nozzles at least in the region of the nozzle edge. 6 spatially separate.
  • the nozzle channels are preferably wedge-shaped in cross section, so that the nozzle channels or nozzles are separated from one another by wedge-shaped webs 12.
  • the nozzle channels are preferably designed so that they expand toward the cavity 7, so that an inflowing fluid is accelerated by the narrowing of the nozzle channels.
  • the Temperierthrotbreittake 4 may be formed converging from the Temperier- sword base 3 to the nozzle edge 6, so that the cavity narrows toward the nozzle edge 6 out.
  • TemperierhetSchmalcharge 5 may be formed converging or diverging.
  • temperrierhistone may be present.
  • the nozzles 10 may, based on the extension of the nozzle edge, also be elongated aligned with the nozzle edge, but the nozzles may also be round, oval in alignment with the nozzle edge or oval transversely to the nozzle edge six, eight or polygonal.
  • H ⁇ 6 x DH, especially 4 to 6 x DH
  • Oscillation half the distance between two tempering blades in X, Y (possibly Z)
  • a device for tempering ( Figure 12) has z. B. two arrangements of Temperierhistern 2 in a Temperierhistrahmen 8, wherein the Temperierhistrahmen 8 are formed with corresponding fluid feeds 14 and in particular on the Temperierhistern 2 side facing away with a fluid box, in the pressurized fluid present is, in particular by the supply of pressurized fluid.
  • a cooling medium which is preferably supplied to a tempering, wherein in a plurality of tempering, preferably the cooling medium the Fluidzu- leading box centrally fed and distributed from there to the tempering ⁇ swords.
  • These gaseous media may be heated to a target temperature outside the tempering device. Such heating is possible, for example, with conventional sausages .
  • the fluids can be heated by direct or indirect heating, in particular by burners, jet pipes, electrical resistance heaters and the like.
  • a board is tempered by means of purely convective heating with a hot with a 1100 ° C gas and a heat transfer coefficient of 200 W / m ⁇ 2 / K.
  • the heating curve (temperature in ° C over time in s) in this purely convective heating is shown in FIG. It can be seen well that rapidly adjusts heating to a temperature above Ac3, so the austenite maschines- temperature which is for example 900 ° C at a manganese-boron steel, and this method therefore at ⁇ play as well for hot forming suitable.
  • a flat board does not have to be used for this purpose, but a correspondingly preformed component can also be heated.
  • only a portion of the board is tempered, i. from room temperature (about 20 ° C) to about Ac3 (about 900 ° C).
  • the board can also be preheated - for example by a roller hearth furnace or other storage ovens. Thereafter, in turn, takes place fully or partially flat Temperie ⁇ tion of the board to over Ac3 by gas heating.
  • Inlet temperature gas 1800 ° C.
  • a movement device 16 is provided, wherein the movement device is designed such that it can lead a body to be tempered between the opposing Temperierhistan extract so that can be acted on both sides cooling on the body to be tempered.
  • the distances of the nozzle edges 6 to be tempered body amount to z. B. 5 to 250 mm.
  • the intermediate spaces can be charged with corresponding flow media with an additional transverse flow. are struck to suck the medium flowing on the body to be tempered medium between the swords.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Tunnel Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Control Of Temperature (AREA)

Abstract

La présente invention concerne un dispositif de trempe d'objets chauds, en particulier un dispositif pour réaliser une trempe homogène, sans contact, de surfaces à tremper non continues au départ, ledit dispositif de trempe comprenant au moins une lance ou un cylindre de trempe pour réaliser la trempe, la lance ou le cylindre de trempe présentant une conformation creuse, ainsi qu'un bord de projection des lances de trempe ou une pluralité de cylindres de trempe alignés, le bord de projection comprenant au moins une buse orientée vers l'objet à tremper, au moins sept lances de trempe étant disposées de telle manière que les lignes d'écoulement forment une structure de type nid d'abeille sur la surface à tremper. L'invention concerne également un procédé à cet effet.
EP16727320.0A 2015-05-29 2016-05-18 Procédé de trempe homogène sans contact de surfaces à tremper non continues et dispositif à cet effet Active EP3302837B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015108514.3A DE102015108514A1 (de) 2015-05-29 2015-05-29 Verfahren zum homogenen, kontaktlosen Kühlen von heißen, nicht endlosen Oberflächen und Vorrichtung hierfür
DE102015113056.4A DE102015113056B4 (de) 2015-08-07 2015-08-07 Verfahren zum kontaktlosen Kühlen von Stahlblechen und Vorrichtung hierfür
PCT/EP2016/061102 WO2016192994A1 (fr) 2015-05-29 2016-05-18 Procédé de trempe homogène sans contact de surfaces à tremper non continues et dispositif à cet effet

Publications (2)

Publication Number Publication Date
EP3302837A1 true EP3302837A1 (fr) 2018-04-11
EP3302837B1 EP3302837B1 (fr) 2020-03-11

Family

ID=56068877

Family Applications (3)

Application Number Title Priority Date Filing Date
EP16724376.5A Active EP3303642B1 (fr) 2015-05-29 2016-05-18 Procédé de refroidissement sans contact de tôles d'acier et dispositif à cet effet
EP16727320.0A Active EP3302837B1 (fr) 2015-05-29 2016-05-18 Procédé de trempe homogène sans contact de surfaces à tremper non continues et dispositif à cet effet
EP16724621.4A Active EP3303640B1 (fr) 2015-05-29 2016-05-18 Procédé de refroidissement homogène sans contact de surfaces à refroidir non continues et dispositif à cet effet

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CN107922984A (zh) 2018-04-17
WO2016192993A1 (fr) 2016-12-08
ES2808779T3 (es) 2021-03-01
CN108136464B (zh) 2020-08-28
MX2017015330A (es) 2018-08-28
US10814367B2 (en) 2020-10-27
JP2018532877A (ja) 2018-11-08
KR20180012328A (ko) 2018-02-05
KR20180014069A (ko) 2018-02-07
JP2018524535A (ja) 2018-08-30
JP7028514B2 (ja) 2022-03-02
EP3303642A1 (fr) 2018-04-11
CA2987500C (fr) 2023-09-19
CA2987500A1 (fr) 2016-12-08
CN107922988A (zh) 2018-04-17
CN107922988B (zh) 2019-12-17
CN108136464A (zh) 2018-06-08
JP7141828B2 (ja) 2022-09-26
WO2016192992A1 (fr) 2016-12-08
EP3303640A1 (fr) 2018-04-11
WO2016192994A1 (fr) 2016-12-08
US20190076899A1 (en) 2019-03-14
EP3303642B1 (fr) 2020-03-11
EP3303640B1 (fr) 2020-07-15
ES2781457T3 (es) 2020-09-02
KR20180014070A (ko) 2018-02-07
JP6908231B2 (ja) 2021-07-21
EP3302837B1 (fr) 2020-03-11
US20180245173A1 (en) 2018-08-30
JP2018522138A (ja) 2018-08-09
US20180155803A1 (en) 2018-06-07
CN107922984B (zh) 2019-12-31
ES2781198T3 (es) 2020-08-31

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