EP3538677A1 - Temperature control station for partially thermally treating a metal component - Google Patents

Temperature control station for partially thermally treating a metal component

Info

Publication number
EP3538677A1
EP3538677A1 EP17804826.0A EP17804826A EP3538677A1 EP 3538677 A1 EP3538677 A1 EP 3538677A1 EP 17804826 A EP17804826 A EP 17804826A EP 3538677 A1 EP3538677 A1 EP 3538677A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
partially
component
temperature control
control station
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
EP17804826.0A
Other languages
German (de)
French (fr)
Other versions
EP3538677B1 (en
Inventor
Frank WILDEN
Jörg Winkel
Andreas Reinartz
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.)
Schwartz GmbH
Original Assignee
Schwartz 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 Schwartz GmbH filed Critical Schwartz GmbH
Priority to PL17804826T priority Critical patent/PL3538677T3/en
Publication of EP3538677A1 publication Critical patent/EP3538677A1/en
Application granted granted Critical
Publication of EP3538677B1 publication Critical patent/EP3538677B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/34—Methods of heating
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for 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
    • 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
    • C21D8/0294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a localised treatment
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • 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
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—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
    • C21D2221/00—Treating localised areas of an article
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/01—End parts (e.g. leading, trailing end)
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/02—Edge parts
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/10—Differential treatment of inner with respect to outer regions, e.g. core and periphery, respectively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • F27B2009/126—Cooling involving the circulation of cooling gases, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling
    • F27B2009/126—Cooling involving the circulation of cooling gases, e.g. air
    • F27B2009/128—Cooling involving the circulation of cooling gases, e.g. air the gases being further utilised as oxidants in the burners
    • 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
    • F27D2009/0089—Quenching

Definitions

  • the invention relates to a tempering for partial heat treatment of a metallic component and a device for heat treatment of a metallic component.
  • the invention finds particular application in the partial hardening of optionally precoated components made of a high-strength manganese-boron steel.
  • press hardening For the manufacture of safety-related vehicle body parts made of sheet steel, it is regularly necessary to harden the steel sheet during or after the forming of the body component. For this purpose, a heat treatment process has been established, which is referred to as "press hardening.” In this process, the steel sheet, which is regularly provided in the form of a blank, is first heated in an oven and then cooled in a press during forming and then hardened.
  • A- and B-pillars side impact protection in doors, sills, frame parts, bumper, cross member for floor and roof, front and rear side members to provide that have different strengths in sub-areas, so that the body part partially fulfill different functions can.
  • the center area of a B pillar of a vehicle should have high strength to protect the occupants in the event of a side impact.
  • the upper and / or lower end region of the B-pillar should have a comparatively low strength in order to absorb deformation energy during a side impact and / or, for example, softer regions during assembly of the B-pillar enable easy connectability to other body components.
  • the hardened component To form such a partially hardened body component, it is necessary for the hardened component to have different material structures or strength properties in the subregions.
  • the steel sheet to be hardened can already be provided with different, interconnected sheet metal sections or partially cooled differently in the press.
  • the steel sheet can be hardened before cooling and forming in the press partially different heat treatment processes.
  • only those portions of the steel sheet to be hardened can be heated, in which a structural transformation towards harder structures, such as martensite to take place.
  • the steel sheet to be hardened is to be partially subjected to different heat treatment processes before cooling and forming, there is also a regular problem that the different, partially on the steel sheet can not be sufficiently thermally separated from each other acting heat treatment measures. This problem arises in particular when the partially different heat treatment is to be carried out almost simultaneously on the steel sheet.
  • a tempering station and a device for heat treatment of a metallic component are to be specified, which permit sufficiently reliable thermal delimitation of heat treatment measures that partially act on the component and / or sufficiently reliable thermal separation of different heat treatment measures that partially act on the component.
  • a tempering station for the partial heat treatment of a metallic component, with a working plane arranged in the tempering station, in which the component can be arranged, at least one nozzle aligned towards the working plane and for discharging a fluid flow for cooling at least a first portion of the component is provided and set up and at least one nozzle box above the Machining level is arranged, wherein the at least one nozzle box forms at least one nozzle area in which the at least one nozzle is at least partially arranged and / or at least partially limits the propagation of the fluid flow, wherein the at least one nozzle box is at least partially formed with a ceramic material
  • the metallic component is preferably a metallic board, a steel sheet or an at least partially preformed semi-finished product.
  • the metallic component is preferably with or from a (hardenable) steel, for example a boron (manganese) steel, for. B. with the name 22MnB5 formed. More preferably, the metallic component is at least for the most part provided with a (metallic) coating or precoated.
  • the metallic coating may be, for example, a (predominantly) zinc-containing coating or a (predominantly) aluminum and / or silicon-containing coating, in particular a so-called aluminum / silicon (Al / Si) coating.
  • the tempering station is preferably arranged downstream of a first furnace and / or upstream of a second furnace.
  • a processing level is arranged, in which the component can be arranged or arranged.
  • the working plane designates in particular the plane into which the component can be moved for treatment in the tempering station and / or in which the component is arranged and / or fixable in the tempering station during the treatment.
  • the working plane is aligned substantially horizontally.
  • the component can be arranged or arranged in the working plane and can be aligned or aligned relative to the nozzle box.
  • the component when it is arranged in the processing station, aligned relative to the nozzle box.
  • the tempering station has at least one nozzle.
  • the nozzle is aligned towards the working plane.
  • the nozzle for discharging a fluid idstroms for cooling at least a first portion of the component is provided and arranged, in particular so that a temperature difference between the at least one first (in the finished treated component ductile) portion and at least one second (in the finished treated component in comparison to harder) part of the component is adjustable.
  • a plurality of nozzles is provided, wherein the nozzles are particularly preferably arranged to a nozzle array.
  • the nozzle box may form a separate nozzle area for each nozzle and / or a common nozzle area for a plurality or all of the plurality of nozzles.
  • the (each) nozzle is shaped in the manner of a flat jet nozzle and / or a round die.
  • the tempering station has at least one nozzle box, which is arranged above the working plane.
  • the nozzle box may be designed in the manner of a frame, a box and / or a housing in which recesses and / or spaces may be provided, in which nozzles and / or heat sources can be accommodated.
  • the nozzle box is formed, in particular shaped, in that it can at least partially (thermally) separate, delimit and / or shield at least one nozzle region from the environment and / or from at least one heating region.
  • the nozzle box has a (horizontal) width which is in particular at least one and a half times greater than a (vertical) height of the nozzle box.
  • the nozzle box in particular at a lower end or on the underside an (outer) contour, which is formed substantially corresponding to or analogous to an outer contour of a (to be treated) component.
  • the at least one nozzle box forms at least one nozzle area.
  • a plurality of nozzle areas may be formed.
  • the at least one nozzle region is preferably formed or shaped by the nozzle box in such a way that it can at least partially accommodate at least one nozzle.
  • the nozzle box can have one or more walls and / or wall sections which at least partially surround the nozzle area and / or delimit or delimit from the environment and / or from at least one heating area.
  • the nozzle box preferably has at least one (inner) wall which completely surrounds a nozzle area, viewed in a cross-section oriented parallel to the working plane.
  • the at least one nozzle is at least partially arranged or arranged.
  • the at least one nozzle projects at least partially into the nozzle area or is even arranged completely in the nozzle area.
  • the nozzle region is formed such that the nozzle region at least partially limits propagation of the fluid flow. This advantageously makes it possible for a fluid stream discharged to the component by means of the at least one nozzle to be guided in a targeted manner to the at least one first subregion of the component, in particular even if the nozzle does not protrude into the nozzle region or is arranged therein.
  • the nozzle region or a nozzle wall (inner) wall of the nozzle box forms a propagation of the fluid flow in a lateral and / or horizontal direction.
  • the at least one nozzle box is at least partially formed with or made of a ceramic material.
  • at least one wall and / or at least one wall section of the nozzle box is formed with or out of the ceramic material, which particularly preferably has at least one nozzle region of at least one eraser.
  • thermal zone thermal and / or spatial
  • the ceramic material is sintered.
  • a tempering station for partial heat treatment of a metallic component with a arranged in the tempering processing plane in which the component is arranged, at least one nozzle, which is aligned to the processing plane and for discharging a fluid stream for cooling at least a first portion of the component is provided and arranged, at least one heat source, which is provided and arranged to enter heat energy in at least a second portion of the component and at least one nozzle box, which is arranged above the working plane, wherein the at least one nozzle box at least one nozzle area forms, in which the at least one nozzle is at least partially locatable and / or at least partially limits the propagation of the fluid flow, wherein the at least one nozzle box at least one of the at least one nozzle region separated Forms heating range in which the heat source is at least partially arranged and / or at least partially limits the spread of heat energy.
  • the at least one heat source is preferably at least one radiant heat source.
  • the heat source is preferably an actively operable, in particular electrically operable or energizable heat source.
  • the heat source is formed with an electrically operated (the component not physically or electrically contacting) heating element.
  • the heating element may be a heating loop and / or a heating wire.
  • the heat source may be formed with a (gas-heated) jet pipe.
  • the at least one heating area is formed by the nozzle box.
  • the at least one heating area is so from the nozzle box formed or shaped so that it can at least partially accommodate at least one heat source.
  • the nozzle box can have one or more walls and / or wall sections which at least partially surround the heating area and / or delimit or delimit from the environment and / or from at least one nozzle area.
  • the nozzle box has at least one (inner) wall which completely surrounds a heating area, viewed in a cross-section oriented parallel to the working plane.
  • the at least one heat source can be arranged or arranged at least partially.
  • the at least one heat source preferably projects at least partially into the heating area or is even arranged completely in the heating area.
  • the heating area is formed such that the heating area at least partially limits propagation of heat energy. This advantageously makes it possible to selectively guide the at least one heat source to the component discharged or radiated heat energy to the at least one second portion of the component, in particular even if the heat source does not protrude into the heating area or in this is arranged.
  • the heating area or a wall of the nozzle box forming the heating area limits propagation of the thermal energy in a lateral and / or horizontal direction. If the heat source is formed with a radiant heat source that can be operated in particular or gas-heated, in particular laterally radiating thermal radiation can be directed or reflected, for example, from an inner wall of the heating area to the second partial area of the component.
  • the at least one nozzle box is formed at least partially with or from a fiber-reinforced ceramic material.
  • alumina fibers can be used.
  • the at least one nozzle box or at least one wall and / or at least one wall section of the nozzle box is preferably formed at least partially with or out of an aluminum oxide ceramic reinforced with (fine) fibers of aluminum oxide.
  • the at least one nozzle box is at least partially formed with or from an alumina ceramic.
  • at least one wall and / or at least one wall portion of the nozzle box is at least partially formed with or from an alumina ceramic.
  • all walls and / or wall sections of the nozzle box are particularly preferably formed with or from an alumina ceramic, in particular reinforced with (fine) fibers of aluminum oxide.
  • a nozzle array is arranged with a plurality of particular spaced apart held nozzles.
  • the shape of the nozzle field and / or the arrangement of the plurality of nozzles is adapted to the (to be achieved) geometry of the at least one first portion of the component.
  • the at least one nozzle region is shaped such that it spans a region of the processing plane in which the at least one first subregion of the component can be arranged.
  • a cross section of the nozzle region aligned parallel to the working plane has a shape or geometry which corresponds to the shape or geometry (to be achieved) of the first subregion of the component.
  • the at least one heating region is shaped such that it spans a region of the working plane in which the at least one second subregion of the component can be arranged.
  • a cross-section of the heating region oriented parallel to the working plane has a shape or geometry which corresponds to the shape or geometry (to be achieved) of the second partial region of the component.
  • the at least one nozzle area may be arranged at a specific (lateral and / or horizontal) position in or on the nozzle box, which corresponds to a (lateral and / or horizontal) position of the at least one first partial area in the component, in particular overlaps, as soon as the component is arranged in the working plane and / or aligned with respect to the nozzle box.
  • the at least one heating area may be arranged at a specific (lateral and / or horizontal) position in or on the nozzle box, which corresponds to a (lateral and / or horizontal) position of the at least one second partial area in the component, in particular overlaps, as soon as possible the component is arranged in the processing plane and / or aligned with respect to the nozzle box.
  • the at least one nozzle box is at least partially double-walled and / or at least partially has an insulating material.
  • the nozzle box is preferably in the region of the at least one heating area or at least partially formed double-walled around the at least one heating area and / or (thermally) isolated.
  • the insulating material is formed in particular with or from a microporous insulating material.
  • the insulating material between walls and / or wall portions of the nozzle box is arranged, which form a double-walled portion of the nozzle box.
  • the insulating material is preferably temperature-resistant for temperatures above 1073.15 K.
  • an apparatus for (partial) heat treatment of a metallic component at least comprising:
  • the device further comprises at least
  • one of the tempering station downstream in particular by means of radiant heat and / or convection heated second oven, and / or a tempering station and / or the second furnace downstream press hardening tool.
  • the first furnace or the second furnace is a continuous furnace or a chamber furnace.
  • the first furnace is preferably a continuous furnace, in particular a roller hearth furnace.
  • the second furnace is particularly preferably a continuous furnace, in particular a roller hearth furnace, or a chamber furnace, in particular a multi-layer furnace with at least two chambers arranged one above the other.
  • the second furnace preferably has a furnace interior, in particular (exclusively) which can be heated by means of radiant heat, in which preferably a virtually uniform internal temperature can be set.
  • the second oven is designed as a multilayer chamber furnace, according to the number of chambers, several such furnace interior spaces may be present.
  • Radiation heat sources are preferably arranged in the first furnace and / or in the second furnace (exclusively).
  • at least one electrically operated (component non-contacting) heating element such as at least one electrically operated heating loop and / or at least one electrically operated heating wire is arranged in a furnace interior of the first furnace and / or in a furnace interior of the second furnace.
  • at least one in particular gas-heated jet pipe can be arranged in the furnace interior of the first furnace and / or the furnace interior of the second furnace.
  • a plurality of jet tube gas burners or jet tubes are arranged in the furnace interior of the first furnace and / or the furnace interior of the second furnace, in each of which at least one gas burner burns.
  • the inner region of the steel tubes, into which the gas burners burn is atmospherically separated from the furnace interior, so that no combustion gases or exhaust gases can enter the furnace interior and thus influence the furnace atmosphere.
  • Such an arrangement is also referred to as "indirect gas heating".
  • a use of a nozzle box formed at least partially with a ceramic material in a tempering station is proposed, wherein the nozzle box is used for the partial heat treatment of a metallic component.
  • FIG. 1 shows a schematic representation of a tempering station according to the invention
  • Fig. 2 a schematic representation of another invention
  • FIG. 3 is a perspective view of a nozzle box shown in section, which can be used in a tempering station according to the invention
  • FIG. 4 shows a schematic representation of a device according to the invention.
  • FIG. 1 shows a schematic representation of a tempering station 1 for the partial heat treatment of a metallic component 2.
  • the tempering station 1 arranged a working plane 3, in which the component 2 is located.
  • the tempering station 1 has a nozzle 4, which is aligned towards the working plane 3 and provided and arranged for discharging a fluid flow 5 for cooling at least a first subregion 6 of the component 2.
  • the tempering station 1 has by way of example a heat source 9, which is provided and arranged to record heat energy in at least a second subregion 10 of the component 2.
  • the heat source 9 is formed here by way of example in the manner of a currentable heating wire.
  • the tempering 1 has a nozzle box 7, which is arranged above the working plane 3.
  • the nozzle box 7 here forms a nozzle region 8, in which the nozzle 4 is at least partially arranged.
  • the nozzle box 7, as shown in FIG. 1 forms a heating area 11 separate from the nozzle area 8, in which the heat source 9 is arranged at least partially.
  • the nozzle box 7 with or the walls 18 of the nozzle box 7 are formed of a ceramic material.
  • the ceramic material used here is exemplified by a fiber-reinforced alumina ceramic.
  • the nozzle box 7 is double-walled around the heating area 11 and has an insulating material 13 between the walls 18 forming the double-walled portion of the nozzle box 7.
  • the nozzle region 8 is shaped such that it spans a region of the working plane 3 in which the first subregion 6 of the component 2 is arranged as soon as the component 2 is arranged in the working plane 3 and is aligned with respect to the nozzle box 7.
  • the heating area 11 is shaped such that it spans a region of the working plane 3 in which the second partial area 10 of the component 2 is arranged.
  • a cross-section of the nozzle area 8 aligned perpendicular to the plane of the drawing and parallel to the working plane 3 has a shape that corresponds to the shape to be achieved or geometry of the first portion 6 corresponds.
  • a cross section of the heating area 11 aligned perpendicular to the plane of the drawing and parallel to the working plane 3 has a shape which corresponds to the shape or geometry of the second subarea 10 (to be achieved).
  • the nozzle area 8 and the heating area 11 are separated from one another (thermally) by means of the nozzle box so that a temperature profile can be impressed on the component 2 with subregions of differing temperature that are as exactly delimited as possible. Due to the fact that a distinct temperature difference between the first sub-area 6 and the second sub-area 10 is set in the first sub-area 6 by the cooling by means of the nozzle 4, after a hardening in a tempering station 1 downstream press-hardening tool (not shown here) in the Divisions 6, 10 set different material structure and / or strength properties of each other, wherein in the cooled first portion 6 a ductile structure and / or a lower hardness can be set as in the second portion 10th
  • FIG. 2 shows a schematic illustration of a further tempering station 1 for the partial heat treatment of a metallic component 2. Since the reference numbers are used uniformly, only the differences from the tempering station shown in FIG. 1 are discussed here. In addition, reference is made to the explanations of FIG. 1, which are fully incorporated herein by reference. A first difference is that here two nozzles 4 are shown, which are arranged to a nozzle array 12.
  • FIG. 2 illustrates by way of example that the nozzle region 8 can also be formed such that it at least partially, for example laterally limited, propagate the fluid flow 5 without the nozzle (s) themselves having to be arranged in the nozzle region 8 ,
  • the heating by way of example, the region 11 is formed by the nozzle box 7 in such a way that it at least partially delimits an expansion of thermal energy, for example laterally.
  • thermal radiation which is indicated in FIG. 2 by means of dotted lines, can be reflected on the inner walls 18 of the heating area 11.
  • FIG. 3 shows a perspective view of a nozzle box 7 shown in section, which can be used in a tempering station according to the invention (not shown here).
  • the nozzle box 7 forms here by way of example a plurality of nozzle regions 8 in which nozzles (not shown here) can be arranged and / or can blow into the nozzles.
  • the nozzle box 7 forms a plurality of heating areas 11, in which one or more heat sources (not shown here) can be arranged.
  • the nozzle areas 8 are separated from the heating areas 11 by means of the walls 18 of the nozzle box 7 and by means of insulating material 13.
  • FIG. 4 shows a schematic representation of a device 14 according to the invention for the heat treatment of a metallic component 2.
  • the device 14 has a heatable first furnace 15, a tempering station 1 (directly) downstream of the first furnace 15, a heatable (directly) downstream of the tempering station 1 second oven 16 and a second oven 16 (directly) downstream press hardening tool 17.
  • a tempering station and a device for heat treatment of a metallic component are specified, which at least partially solve the problems described with reference to the prior art.
  • the tempering station and the device allow a sufficiently reliable thermal delimitation of heat treatment measures that are partially applied to the component and / or sufficiently reliable thermal separation of partially acting on the component, different heat treatment measures.

Abstract

The invention relates to a temperature control station (1) for partially thermally treating a metal component (2), comprising a machining plane (3) which is arranged in the temperature control station (1) and on which the component (2) can be arranged, at least one nozzle (4) which is oriented towards the machining plane (3) and is provided and designed to discharge a fluid flow (5) for cooling at least one first sub-region (6) of the component (2), and at least one nozzle box (7) which is arranged above the machining plane (3). The at least one nozzle box (7) forms at least one nozzle region (8) in which the at least one nozzle (4) can be at least partly arranged and/or which at least partly delimits an expansion of the fluid flow (5). The at least one nozzle box (7) is at least partly made of a ceramic material. The aim of the invention is to provide a temperature control station and a device for thermally treating a metal component which at least partly solve the problems described with respect to the prior art. In particular, the temperature control station and the device allow a sufficiently reliable thermal confinement of thermal treatment measures partially acting on the component and/or a sufficiently reliable thermal separation of different thermal treatment measures partially acting on the component.

Description

Temperierstation zur partiellen Wärmebehandlung eines metallischen Bauteils  Temperature control station for the partial heat treatment of a metallic component
Die Erfindung betrifft eine Temperierstation zur partiellen Wärmebehandlung eines metallischen Bauteils sowie eine Vorrichtung zur Wärmebehandlung eines metallischen Bauteils. Die Erfindung findet insbesondere Anwendung beim partiellen Härten von gegebenenfalls vorbeschichteten Bauteilen aus einem hochfesten Mangan-Bor- Stahl . The invention relates to a tempering for partial heat treatment of a metallic component and a device for heat treatment of a metallic component. The invention finds particular application in the partial hardening of optionally precoated components made of a high-strength manganese-boron steel.
Zur Herstellung sicherheitsrelevanter Fahrzeug-Karosseriebauteile aus Stahlblech ist es regelmäßig erforderlich das Stahlblech während oder nach der Umformung zu dem Karosseriebauteil zu härten. Hierzu hat sich ein Wärmebehandlungsverfahren etabliert, das als„Presshärten" bezeichnet wird. Dabei wird das Stahlblech, das regelmäßig in der Form einer Platine bereitgestellt wird zunächst in einem Ofen aufgeheizt und anschließend während der Umformung in einer Presse abge- kühlt und dadurch gehärtet. For the manufacture of safety-related vehicle body parts made of sheet steel, it is regularly necessary to harden the steel sheet during or after the forming of the body component. For this purpose, a heat treatment process has been established, which is referred to as "press hardening." In this process, the steel sheet, which is regularly provided in the form of a blank, is first heated in an oven and then cooled in a press during forming and then hardened.
Seit einigen Jahren besteht nun das Bestreben mittels des Presshärtens Karosseriebauteile von Kraftfahrzeugen, wie z. B. A- und B-Säulen, Seitenaufprallschutz- träger in Türen, Schweller, Rahmenteile, Stoßstangenfänger, Querträger für Bo- den und Dach, vordere und hintere Längsträger, bereitzustellen, die in Teilbereichen unterschiedliche Festigkeiten aufweisen, sodass das Karosseriebauteil partiell unterschiedliche Funktionen erfüllen kann. So soll zum Beispiel der mittlere Bereich einer B-Säule eines Fahrzeugs eine hohe Festigkeit aufweisen, um die Insassen im Falle eines Seitenaufpralls zu schützen. Gleichzeitig sollen der obere und/oder untere Endbereich der B-Säule eine vergleichsweise geringe Festigkeit aufweisen, um Verformungsenergie während eines Seitenaufpralls aufnehmen zu können und/oder beispielsweise weichere Bereiche während der Montage der B- Säule eine einfache Verbindbarkeit mit anderen Karosseriebauteilen ermöglichen. Zur Ausbildung eines solchen partiell gehärteten Karosseriebauteils ist es erforderlich, dass das gehärtete Bauteil in den Teilbereichen unterschiedliche Materialgefüge beziehungsweise Festigkeitseigenschaften aufweist. Zur Einstellung unterschiedlicher Materialgefüge beziehungsweise Festigkeitseigenschaften nach dem Härten kann beispielsweise das zu härtende Stahlblech bereits mit unterschiedlichen, miteinander verbundenen Blechabschnitten bereitgestellt oder in der Presse partiell unterschiedlich abgekühlt werden. For some years now there is a desire by means of press hardening body components of motor vehicles, such. B. A- and B-pillars, side impact protection in doors, sills, frame parts, bumper, cross member for floor and roof, front and rear side members to provide that have different strengths in sub-areas, so that the body part partially fulfill different functions can. For example, the center area of a B pillar of a vehicle should have high strength to protect the occupants in the event of a side impact. At the same time, the upper and / or lower end region of the B-pillar should have a comparatively low strength in order to absorb deformation energy during a side impact and / or, for example, softer regions during assembly of the B-pillar enable easy connectability to other body components. To form such a partially hardened body component, it is necessary for the hardened component to have different material structures or strength properties in the subregions. For setting different material structures or strength properties after curing, for example, the steel sheet to be hardened can already be provided with different, interconnected sheet metal sections or partially cooled differently in the press.
Alternativ oder zusätzlich besteht die Möglichkeit, das zu härtende Stahlblech vor dem Abkühlen und Umformen in der Presse partiell unterschiedlichen Wärmebehandlungsprozessen zu unterwerfen. In diesem Zusammenhang können beispielsweise lediglich diejenigen Teilbereiche des zu härtenden Stahlblechs aufgeheizt werden, in denen eine Gefügeumwandlung hin zu härteren Gefügen, wie etwa Martensit stattfinden soll. Ferner besteht die Möglichkeit, die partielle Wärmebe- handlung mittels Kontaktplatten durchzuführen, die zur partiellen Temperierung des Stahlblechs durch Wärmeleitung ausgebildet sind. Dies erfordert jedoch eine bestimmte Kontaktzeit mit den Platten, die üblicherweise länger ist als eine mittels der nachgelagerten Presse erreichbare (minimale) Taktzeit. Eine solche Verfahrensführung weist jedoch weiterhin regelmäßig den Nachteil auf, dass das Ein- diffundieren einer üblicherweise zum Schutz vor Verzunderung auf die Oberfläche des Stahlblechs aufzubringenden Beschichtung, etwa einer Aluminium- Silizium-Beschichtung nicht effizient in den Wärmebehandlungsprozess integriert werden kann. Zudem erschwert die Abstimmung zwischen bestimmter Kontaktzeit und Taktzeit an der Presse regelmäßig die Integration entsprechender Tempe- rierstationen in eine Presshärtelinie im industriellen Maßstab, in der Produktionsschwankungen während des Betriebs in der Regel unvermeidbar sind. Alternatively or additionally, it is possible to subject the steel sheet to be hardened before cooling and forming in the press partially different heat treatment processes. In this context, for example, only those portions of the steel sheet to be hardened can be heated, in which a structural transformation towards harder structures, such as martensite to take place. It is also possible to carry out the partial heat treatment by means of contact plates, which are designed for partial tempering of the steel sheet by heat conduction. However, this requires a certain contact time with the plates, which is usually longer than a reachable by the downstream press (minimum) cycle time. However, such a process control still regularly has the disadvantage that the diffusion of a coating, for example an aluminum-silicon coating, which is usually to be applied to the surface of the steel sheet for protection against scaling can not be efficiently integrated into the heat treatment process. In addition, the coordination between the particular contact time and cycle time on the press regularly complicates the integration of corresponding tempe- rierstationen in a press hardening line on an industrial scale, in the production fluctuations during operation are usually unavoidable.
Soll das zu härtende Stahlblech vor dem Abkühlen und Umformen partiell unterschiedlichen Wärmebehandlungsprozessen unterworfen werden, besteht zudem regelmäßig das Problem, dass die unterschiedlichen, partiell auf das Stahlblech einwirkenden Wärmebehandlungsmaßnahmen nicht ausreichend zuverlässig thermisch voneinander getrennt werden können. Dieses Problem ergibt sich insbesondere dann, wenn die partiell unterschiedliche Wärmebehandlung nahezu gleichzeitig an dem Stahlblech ausgeführt werden soll. If the steel sheet to be hardened is to be partially subjected to different heat treatment processes before cooling and forming, there is also a regular problem that the different, partially on the steel sheet can not be sufficiently thermally separated from each other acting heat treatment measures. This problem arises in particular when the partially different heat treatment is to be carried out almost simultaneously on the steel sheet.
Hiervon ausgehend ist es Aufgabe der vorliegenden Erfindung, die mit Bezug auf den Stand der Technik geschilderten Probleme zumindest teilweise zu lösen. Insbesondere sollen eine Temperierstation und eine Vorrichtung zur Wärmebehandlung eines metallischen Bauteils angegeben werden, die eine ausreichend zuver- lässige thermische Abgrenzung von partiell auf das Bauteil einwirkenden Wärmebehandlungsmaßnahmen und/oder eine ausreichend zuverlässige thermische Trennung von partiell auf das Bauteil einwirkenden, unterschiedlichen Wärmebehandlungsmaßnahmen erlauben. Diese Aufgaben werden gelöst durch die Merkmale der unabhängigen Patentansprüche. Weitere vorteilhafte Ausgestaltungen der hier vorgeschlagenen Lösung sind in den abhängigen Patentansprüchen angegeben. Es ist darauf hinzuweisen, dass die in den abhängigen Patentansprüchen einzeln aufgeführten Merkmale in beliebiger, technologisch sinnvoller Weise miteinander kombiniert werden kön- nen und weitere Ausgestaltungen der Erfindung definieren. Darüber hinaus werden die in den Patentansprüchen angegebenen Merkmale in der Beschreibung näher präzisiert und erläutert, wobei weitere bevorzugte Ausgestaltungen der Erfindung dargestellt werden. Erfindungsgemäß wird eine Temperierstation zur partiellen Wärmebehandlung eines metallischen Bauteils vorgeschlagen, mit einer in der Temperierstation angeordneten Bearbeitungsebene, in der das Bauteil anordenbar ist, mindestens einer Düse, die hin zu der Bearbeitungsebene ausgerichtet und zum Austragen eines Fluidstroms zum Kühlen mindestens eines ersten Teilbereichs des Bauteils vorge- sehen und eingerichtet ist und mindestens einem Düsenkasten, der oberhalb der Bearbeitungsebene angeordnet ist, wobei der mindestens eine Düsenkasten mindestens einen Düsenbereich bildet, in dem die mindestens eine Düse zumindest teilweise anordenbar ist und/oder der eine Ausbreitung des Fluidstroms zumindest teilweise begrenzt, wobei der mindestens eine Düsenkasten zumindest teilweise mit einem keramischen Material gebildet ist On this basis, it is an object of the present invention, at least partially solve the problems described with reference to the prior art. In particular, a tempering station and a device for heat treatment of a metallic component are to be specified, which permit sufficiently reliable thermal delimitation of heat treatment measures that partially act on the component and / or sufficiently reliable thermal separation of different heat treatment measures that partially act on the component. These objects are achieved by the features of the independent claims. Further advantageous embodiments of the solution proposed here are specified in the dependent claims. It should be noted that the features listed individually in the dependent claims can be combined with one another in any technologically meaningful manner and define further embodiments of the invention. In addition, the features specified in the claims are specified and explained in more detail in the description, wherein further preferred embodiments of the invention are shown. According to the invention, a tempering station is proposed for the partial heat treatment of a metallic component, with a working plane arranged in the tempering station, in which the component can be arranged, at least one nozzle aligned towards the working plane and for discharging a fluid flow for cooling at least a first portion of the component is provided and set up and at least one nozzle box above the Machining level is arranged, wherein the at least one nozzle box forms at least one nozzle area in which the at least one nozzle is at least partially arranged and / or at least partially limits the propagation of the fluid flow, wherein the at least one nozzle box is at least partially formed with a ceramic material
Bei dem metallischen Bauteil handelt es sich vorzugsweise um eine metallische Platine, ein Stahlblech oder ein zumindest teilweise vorgeformtes Halbzeug. Das metallische Bauteil ist bevorzugt mit beziehungsweise aus einem (härtbaren) Stahl, beispielweise einem Bor-(Mangan-)Stahl, z. B. mit der Bezeichnung 22MnB5, gebildet. Weiter bevorzugt ist das metallische Bauteil zumindest zu einem Großteil mit einer (metallischen) Beschichtung versehen beziehungsweise vorbeschichtet. Bei der metallischen Beschichtung kann es sich beispielsweise um eine (vorrangig) Zink enthaltende Beschichtung oder eine (vorrangig) Aluminium und/oder Silizium enthaltende Beschichtung, insbesondere eine sogenannte Alu- minium/Silizium(Al/Si)-Beschichtung handeln. The metallic component is preferably a metallic board, a steel sheet or an at least partially preformed semi-finished product. The metallic component is preferably with or from a (hardenable) steel, for example a boron (manganese) steel, for. B. with the name 22MnB5 formed. More preferably, the metallic component is at least for the most part provided with a (metallic) coating or precoated. The metallic coating may be, for example, a (predominantly) zinc-containing coating or a (predominantly) aluminum and / or silicon-containing coating, in particular a so-called aluminum / silicon (Al / Si) coating.
Die Temperierstation ist bevorzugt einem ersten Ofen nachgeordnet und/oder einem zweiten Ofen vorgeordnet. In der Temperierstation ist eine Bearbeitungsebe- ne angeordnet, in der das Bauteil anordenbar beziehungsweise angeordnet ist. Die Bearbeitungsebene bezeichnet hierbei insbesondere die Ebene, in die das Bauteil zur Behandlung in der Temperierstation verbringbar und/oder in der das Bauteil während der Behandlung in der Temperierstation angeordnet und/oder fixierbar ist. Bevorzugt ist die Bearbeitungsebene im Wesentlichen horizontal ausgerichtet. Bevorzugt ist das Bauteil in der Bearbeitungsebene anordenbar beziehungsweise angeordnet und relativ zum Düsenkasten ausrichtbar beziehungsweise ausgerichtet. Bevorzugt ist das Bauteil, wenn es in der Bearbeitungsstation angeordnet ist, relativ zum Düsenkasten ausgerichtet. Die Temperierstation weist mindestens eine Düse auf. Die Düse ist hin zu der Bearbeitungsebene ausgerichtet. Zudem ist die Düse zum Austragen eines Flu- idstroms zum Kühlen mindestens eines ersten Teilbereichs des Bauteils vorgesehen und eingerichtet, insbesondere so, dass eine Temperaturdifferenz zwischen dem mindestens einen ersten (im fertig behandelten Bauteil duktileren) Teilbereich und mindestens einem zweiten (im fertig behandelten Bauteil im Vergleich dazu härteren) Teilbereich des Bauteils einstellbar ist. Bevorzugt ist eine Vielzahl von Düsen vorgesehen, wobei die Düsen besonders bevorzugt zu einem Düsenfeld angeordnet sind. Wenn eine Vielzahl von Düsen vorgesehen ist, kann der Düsenkasten für jede Düse einen separaten Düsenbereich und/oder für mehrere oder alle Düsen aus der Vielzahl von Düsen einen gemeinsamen Düsenbereich bilden. Bevorzugt ist die (jede) Düse in der Art einer Flachstrahldüse und/oder einer Runddüse geformt. Weiterhin hat die Temperierstation mindestens einen Düsenkasten, der oberhalb der Bearbeitungsebene angeordnet ist. Der Düsenkasten kann in der Art eines Rahmens, einer Box und/oder eines Gehäuses gestaltet sein, in dem Aussparungen und/oder Räume vorgesehen sein können, in denen Düsen und/oder Wärmequellen aufnehmbar sind. Insbesondere ist der Düsenkasten derart gebildet, insbeson- dere geformt, dass er mindestens einen Düsenbereich von der Umgebung und/oder von mindestens einem Erwärmungsbereich zumindest teilweise (thermisch) trennen, abgrenzen und/oder abschirmen kann. Vorzugsweise weist der Düsenkasten eine (horizontale) Breite auf, die insbesondere um mindestens das eineinhalbfache größer ist als eine (vertikale) Höhe des Düsenkastens. Bevorzugt weist der Düsenkasten, insbesondere an einem unteren Ende beziehungsweise an der Unterseite eine (Außen-)Kontur auf, die im Wesentlichen entsprechend beziehungsweise analog zu einer Außenkontur eines (zu behandelnden) Bauteils geformt ist. Der mindestens eine Düsenkasten bildet mindestens einen Düsenbereich. Bevorzugt können mehrere Düsenbereiche ausgebildet sein. Bevorzugt ist der mindestens eine Düsenbereich derart von dem Düsenkasten gebildet beziehungsweise geformt, dass er mindestens eine Düse zumindest teilweise aufnehmen kann. Zum Bilden des Düsenbereichs kann der Düsenkasten eine oder mehrere Wände und/oder Wandabschnitte aufweisen, die den Düsenbereich zumindest teilweise umgeben und/oder gegenüber der Umgebung und/oder gegenüber mindestens einem Erwärmungsbereich begrenzen beziehungsweise abgrenzen. Bevorzugt weist der Düsenkasten mindestens eine (Innen-)Wand auf, die einen Düsenbe- reich, in einem parallel zu der Bearbeitungsebene ausgerichteten Querschnitt betrachtet, vollständig umgibt. The tempering station is preferably arranged downstream of a first furnace and / or upstream of a second furnace. In the tempering station, a processing level is arranged, in which the component can be arranged or arranged. In this case, the working plane designates in particular the plane into which the component can be moved for treatment in the tempering station and / or in which the component is arranged and / or fixable in the tempering station during the treatment. Preferably, the working plane is aligned substantially horizontally. Preferably, the component can be arranged or arranged in the working plane and can be aligned or aligned relative to the nozzle box. Preferably, the component, when it is arranged in the processing station, aligned relative to the nozzle box. The tempering station has at least one nozzle. The nozzle is aligned towards the working plane. In addition, the nozzle for discharging a fluid idstroms for cooling at least a first portion of the component is provided and arranged, in particular so that a temperature difference between the at least one first (in the finished treated component ductile) portion and at least one second (in the finished treated component in comparison to harder) part of the component is adjustable. Preferably, a plurality of nozzles is provided, wherein the nozzles are particularly preferably arranged to a nozzle array. If a plurality of nozzles are provided, the nozzle box may form a separate nozzle area for each nozzle and / or a common nozzle area for a plurality or all of the plurality of nozzles. Preferably, the (each) nozzle is shaped in the manner of a flat jet nozzle and / or a round die. Furthermore, the tempering station has at least one nozzle box, which is arranged above the working plane. The nozzle box may be designed in the manner of a frame, a box and / or a housing in which recesses and / or spaces may be provided, in which nozzles and / or heat sources can be accommodated. In particular, the nozzle box is formed, in particular shaped, in that it can at least partially (thermally) separate, delimit and / or shield at least one nozzle region from the environment and / or from at least one heating region. Preferably, the nozzle box has a (horizontal) width which is in particular at least one and a half times greater than a (vertical) height of the nozzle box. Preferably, the nozzle box, in particular at a lower end or on the underside an (outer) contour, which is formed substantially corresponding to or analogous to an outer contour of a (to be treated) component. The at least one nozzle box forms at least one nozzle area. Preferably, a plurality of nozzle areas may be formed. The at least one nozzle region is preferably formed or shaped by the nozzle box in such a way that it can at least partially accommodate at least one nozzle. To form the nozzle area, the nozzle box can have one or more walls and / or wall sections which at least partially surround the nozzle area and / or delimit or delimit from the environment and / or from at least one heating area. The nozzle box preferably has at least one (inner) wall which completely surrounds a nozzle area, viewed in a cross-section oriented parallel to the working plane.
In dem mindestens einen Düsenbereich ist die mindestens eine Düse zumindest teilweise anordenbar beziehungsweise angeordnet. Bevorzugt ragt die mindestens eine Düse zumindest teilweise in den Düsenbereich hinein oder ist sogar vollständig in dem Düsenbereich angeordnet. Alternativ oder zusätzlich ist der Düsenbereich derart gebildet, dass der Düsenbereich eine Ausbreitung des Fluidstroms zumindest teilweise begrenzt. Dies ermöglicht in vorteilhafter Weise, dass ein mittels der mindestens einen Düse hin zu dem Bauteil ausgetragener Fluidstrom gezielt zu dem mindestens einen ersten Teilbereich des Bauteils geführt werden kann, insbesondere auch dann, wenn die Düse nicht in den Düsenbereich hineinragt oder in diesem angeordnet ist. Bevorzugt begrenzt der Düsenbereich beziehungsweise eine den Düsenbereich bildende (Innen-) Wand des Düsenkastens eine Ausbreitung des Fluidstroms in einer seitlichen und/oder horizontalen Richtung. In the at least one nozzle region, the at least one nozzle is at least partially arranged or arranged. Preferably, the at least one nozzle projects at least partially into the nozzle area or is even arranged completely in the nozzle area. Alternatively or additionally, the nozzle region is formed such that the nozzle region at least partially limits propagation of the fluid flow. This advantageously makes it possible for a fluid stream discharged to the component by means of the at least one nozzle to be guided in a targeted manner to the at least one first subregion of the component, in particular even if the nozzle does not protrude into the nozzle region or is arranged therein. Preferably, the nozzle region or a nozzle wall (inner) wall of the nozzle box forms a propagation of the fluid flow in a lateral and / or horizontal direction.
Darüber hinaus ist der mindestens eine Düsenkasten zumindest teilweise mit beziehungsweise aus einem keramischen Material gebildet. Bevorzugt ist mindestens eine Wand und/oder mindestens ein Wandabschnitt des Düsenkastens mit beziehungsweise aus dem keramischen Material gebildet, die beziehungsweise der besonders bevorzugt mindestens einen Düsenbereich von mindestens einem Er- wärmungsbereich (thermisch und/oder räumlich) trennt. Bevorzugt ist das keramische Material gesintert. In addition, the at least one nozzle box is at least partially formed with or made of a ceramic material. Preferably, at least one wall and / or at least one wall section of the nozzle box is formed with or out of the ceramic material, which particularly preferably has at least one nozzle region of at least one eraser. thermal zone (thermal and / or spatial) separates. Preferably, the ceramic material is sintered.
Nach einem weiteren Aspekt wird eine Temperierstation zur partiellen Wärmebe- handlung eines metallischen Bauteils vorgeschlagen, mit einer in der Temperierstation angeordneten Bearbeitungsebene, in der das Bauteil anordenbar ist, mindestens einer Düse, die hin zu der Bearbeitungsebene ausgerichtet und zum Austragen eines Fluidstroms zum Kühlen mindestens eines ersten Teilbereichs des Bauteils vorgesehen und eingerichtet ist, mindestens einer Wärmequelle, die dazu vorgesehen und eingerichtet ist, Wärmeenergie in mindestens einen zweiten Teilbereich des Bauteils einzutragen und mindestens einem Düsenkasten, der oberhalb der Bearbeitungsebene angeordnet ist, wobei der mindestens eine Düsenkasten mindestens einen Düsenbereich bildet, in dem die mindestens eine Düse zumindest teilweise anordenbar ist und/oder der eine Ausbreitung des Fluidstroms zu- mindest teilweise begrenzt, wobei der mindestens eine Düsenkasten mindestens einen von dem mindestens einen Düsenbereich getrennten Erwärmungsbereich bildet, in dem die Wärmequelle zumindest teilweise anordenbar ist und/oder der eine Ausbreitung von Wärmeenergie zumindest teilweise begrenzt. Die mindestens eine Wärmequelle ist vorzugsweise mindestens eine Strahlungswärmequelle. Bevorzugt handelt es sich bei der Wärmequelle um eine aktiv betreibbare, insbesondere elektrisch betreibbare beziehungsweise bestrombare Wärmequelle. Besonders bevorzugt ist die Wärmequelle mit einem elektrisch betriebenen (das Bauteil nicht körperlich oder elektrisch kontaktierenden) Heizele- ment gebildet. Bei dem Heizelement kann es sich um eine Heizschleife und/oder einen Heizdraht handeln. Alternativ oder zusätzlich kann die Wärmequelle mit einem (gasbeheizten) Strahlrohr gebildet sein. According to a further aspect, a tempering station for partial heat treatment of a metallic component is proposed, with a arranged in the tempering processing plane in which the component is arranged, at least one nozzle, which is aligned to the processing plane and for discharging a fluid stream for cooling at least a first portion of the component is provided and arranged, at least one heat source, which is provided and arranged to enter heat energy in at least a second portion of the component and at least one nozzle box, which is arranged above the working plane, wherein the at least one nozzle box at least one nozzle area forms, in which the at least one nozzle is at least partially locatable and / or at least partially limits the propagation of the fluid flow, wherein the at least one nozzle box at least one of the at least one nozzle region separated Forms heating range in which the heat source is at least partially arranged and / or at least partially limits the spread of heat energy. The at least one heat source is preferably at least one radiant heat source. The heat source is preferably an actively operable, in particular electrically operable or energizable heat source. Particularly preferably, the heat source is formed with an electrically operated (the component not physically or electrically contacting) heating element. The heating element may be a heating loop and / or a heating wire. Alternatively or additionally, the heat source may be formed with a (gas-heated) jet pipe.
Der mindestens eine Erwärmungsbereich ist von dem Düsenkasten gebildet. Be- vorzugt ist der mindestens eine Erwärmungsbereich derart von dem Düsenkasten gebildet beziehungsweise geformt, dass er mindestens eine Wärmequelle zumindest teilweise aufnehmen kann. Zum Bilden des Erwärmungsbereichs kann der Düsenkasten eine oder mehrere Wände und/oder Wandabschnitte aufweisen, die den Erwärmungsbereich zumindest teilweise umgeben und/oder gegenüber der Umgebung und/oder gegenüber mindestens einem Düsenbereich begrenzen beziehungsweise abgrenzen. Bevorzugt weist der Düsenkasten mindestens eine (Innen-) Wand auf, die einen Erwärmungsbereich, in einem parallel zu der Bearbeitungsebene ausgerichteten Querschnitt betrachtet, vollständig umgibt. In dem mindestens einen Erwärmungsbereich ist die mindestens eine Wärmequelle zumindest teilweise anordenbar beziehungsweise angeordnet. Bevorzugt ragt die mindestens eine Wärmequelle zumindest teilweise in den Erwärmungsbereich hinein oder ist sogar vollständig in dem Erwärmungsbereich angeordnet. Alternativ oder zusätzlich ist der Erwärmungsbereich derart gebildet, dass der Erwär- mungsbereich eine Ausbreitung von Wärmeenergie zumindest teilweise begrenzt. Dies ermöglicht in vorteilhafter Weise, dass mittels der mindestens einen Wärmequelle hin zu dem Bauteil ausgetragene beziehungsweise abgestrahlte Wärmeenergie gezielt zu dem mindestens einen zweiten Teilbereich des Bauteils geführt werden kann, insbesondere auch dann, wenn die Wärmequelle nicht in den Er- wärmungsbereich hineinragt oder in diesem angeordnet ist. Bevorzugt begrenzt der Erwärmungsbereich beziehungsweise eine den Erwärmungsbereich bildende (Innen-) Wand des Düsenkastens eine Ausbreitung der Wärmeenergie in einer seitlichen und/oder horizontalen Richtung. Wenn die Wärmequelle mit einer insbesondere elektrisch betreibbaren oder gasbeheizbaren Strahlungswärmequelle ge- bildet ist, kann insbesondere seitlich abstrahlende Wärmestrahlung beispielsweise von einer Innenwand des Erwärmungsbereichs hin zu dem zweiten Teilbereich des Bauteils gelenkt beziehungsweise reflektiert werden. The at least one heating area is formed by the nozzle box. Preferably, the at least one heating area is so from the nozzle box formed or shaped so that it can at least partially accommodate at least one heat source. To form the heating area, the nozzle box can have one or more walls and / or wall sections which at least partially surround the heating area and / or delimit or delimit from the environment and / or from at least one nozzle area. Preferably, the nozzle box has at least one (inner) wall which completely surrounds a heating area, viewed in a cross-section oriented parallel to the working plane. In the at least one heating area, the at least one heat source can be arranged or arranged at least partially. The at least one heat source preferably projects at least partially into the heating area or is even arranged completely in the heating area. Alternatively or additionally, the heating area is formed such that the heating area at least partially limits propagation of heat energy. This advantageously makes it possible to selectively guide the at least one heat source to the component discharged or radiated heat energy to the at least one second portion of the component, in particular even if the heat source does not protrude into the heating area or in this is arranged. Preferably, the heating area or a wall of the nozzle box forming the heating area limits propagation of the thermal energy in a lateral and / or horizontal direction. If the heat source is formed with a radiant heat source that can be operated in particular or gas-heated, in particular laterally radiating thermal radiation can be directed or reflected, for example, from an inner wall of the heating area to the second partial area of the component.
Die im Zusammenhang mit der zuerst vorgestellten Temperierstation erörterten Details, Merkmale und vorteilhaften Ausgestaltungen können entsprechend auch bei der hier vorgestellten Temperierstation auftreten und umgekehrt. Insoweit wird auf die dortigen Ausführungen zur näheren Charakterisierung der Merkmale vollumfänglich Bezug genommen. Nach einer vorteilhaften Ausgestaltung wird vorgeschlagen, dass der mindestens eine Düsenkasten zumindest teilweise mit beziehungsweise aus einem faserverstärkten keramischen Material gebildet ist. Als Fasern können hier beispielsweise Aluminiumoxid-Fasern verwendet werden. Bevorzugt ist der mindestens eine Düsenkasten beziehungsweise mindestens eine Wand und/oder mindestens ein Wandabschnitt des Düsenkastens zumindest teilweise mit beziehungsweise aus einer mit (feinen) Fasern aus Aluminiumoxid verstärkten Aluminiumoxid- Keramik gebildet. The details, features and advantageous embodiments discussed in connection with the tempering station presented first may also apply accordingly occur at the temperature control station presented here and vice versa. In that regard, reference is made in full to the statements there for a more detailed characterization of the features. According to an advantageous embodiment, it is proposed that the at least one nozzle box is formed at least partially with or from a fiber-reinforced ceramic material. As fibers here, for example, alumina fibers can be used. The at least one nozzle box or at least one wall and / or at least one wall section of the nozzle box is preferably formed at least partially with or out of an aluminum oxide ceramic reinforced with (fine) fibers of aluminum oxide.
Nach einer weiteren vorteilhaften Ausgestaltung wird vorgeschlagen, dass der mindestens eine Düsenkasten zumindest teilweise mit beziehungsweise aus einer Aluminiumoxid-Keramik gebildet ist. Bevorzugt ist mindestens eine Wand und/oder mindestens ein Wandabschnitt des Düsenkastens zumindest teilweise mit beziehungsweise aus einer Aluminiumoxid-Keramik gebildet. Besonders bevorzugt sind (nahezu) alle Wände und/oder Wandabschnitte des Düsenkastens mit beziehungsweise aus einer, insbesondere mit (feinen) Fasern aus Aluminiumoxid verstärkten, Aluminiumoxid-Keramik gebildet. According to a further advantageous embodiment, it is proposed that the at least one nozzle box is at least partially formed with or from an alumina ceramic. Preferably, at least one wall and / or at least one wall portion of the nozzle box is at least partially formed with or from an alumina ceramic. (Almost) all walls and / or wall sections of the nozzle box are particularly preferably formed with or from an alumina ceramic, in particular reinforced with (fine) fibers of aluminum oxide.
Nach einer vorteilhaften Ausgestaltung wird vorgeschlagen, dass in mindestens einem Düsenbereich zumindest teilweise ein Düsenfeld mit einer Vielzahl von insbesondere beabstandet zueinander gehaltenen Düsen angeordnet ist. Bevorzugt ist die Form des Düsenfelds und/oder die Anordnung der mehreren Düsen an die (zu erzielende) Geometrie des mindestens einen ersten Teilbereichs des Bauteils angepasst. Nach einer vorteilhaften Ausgestaltung wird vorgeschlagen, dass der mindestens eine Düsenbereich derart geformt ist, dass er einen Bereich der Bearbeitungsebene überspannt, in dem der mindestens eine erste Teilbereich des Bauteils anordenbar ist. Bevorzugt weist ein parallel zu der Bearbeitungsebene ausgerichteter Quer- schnitt des Düsenbereichs eine Form beziehungsweise Geometrie auf, die der (zu erzielenden) Form beziehungsweise Geometrie des ersten Teilbereichs des Bauteils entspricht. Weiterhin bevorzugt ist der mindestens eine Erwärmungsbereich derart geformt ist, dass er einen Bereich der Bearbeitungsebene überspannt, in dem der mindestens eine zweite Teilbereich des Bauteils anordenbar ist. Beson- ders bevorzugt weist ein parallel zu der Bearbeitungsebene ausgerichteter Querschnitt des Erwärmungsbereichs eine Form beziehungsweise Geometrie auf, die der (zu erzielenden) Form beziehungsweise Geometrie des zweiten Teilbereichs des Bauteils entspricht. Darüber hinaus kann der mindestens eine Düsenbereich an einer bestimmten (lateralen und/oder horizontalen) Position in beziehungsweise an dem Düsenkasten angeordnet sein, die mit einer (lateralen und/oder horizontalen) Position des mindestens einen ersten Teilbereichs in dem Bauteil korrespondiert, insbesondere überlappt, sobald das Bauteil in der Bearbeitungsebene angeordnet und/oder be- züglich des Düsenkastens ausgerichtet ist. Zudem kann der mindestens eine Erwärmungsbereich an einer bestimmten (lateralen und/oder horizontalen) Position in beziehungsweise an dem Düsenkasten angeordnet sein, die mit einer (lateralen und/oder horizontalen) Position des mindestens einen zweiten Teilbereichs in dem Bauteil korrespondiert, insbesondere überlappt, sobald das Bauteil in der Bearbei- tungsebene angeordnet und/oder bezüglich des Düsenkastens ausgerichtet ist. According to an advantageous embodiment, it is proposed that in at least one nozzle region at least partially a nozzle array is arranged with a plurality of particular spaced apart held nozzles. Preferably, the shape of the nozzle field and / or the arrangement of the plurality of nozzles is adapted to the (to be achieved) geometry of the at least one first portion of the component. According to an advantageous embodiment, it is proposed that the at least one nozzle region is shaped such that it spans a region of the processing plane in which the at least one first subregion of the component can be arranged. Preferably, a cross section of the nozzle region aligned parallel to the working plane has a shape or geometry which corresponds to the shape or geometry (to be achieved) of the first subregion of the component. Further preferably, the at least one heating region is shaped such that it spans a region of the working plane in which the at least one second subregion of the component can be arranged. Particularly preferably, a cross-section of the heating region oriented parallel to the working plane has a shape or geometry which corresponds to the shape or geometry (to be achieved) of the second partial region of the component. In addition, the at least one nozzle area may be arranged at a specific (lateral and / or horizontal) position in or on the nozzle box, which corresponds to a (lateral and / or horizontal) position of the at least one first partial area in the component, in particular overlaps, as soon as the component is arranged in the working plane and / or aligned with respect to the nozzle box. In addition, the at least one heating area may be arranged at a specific (lateral and / or horizontal) position in or on the nozzle box, which corresponds to a (lateral and / or horizontal) position of the at least one second partial area in the component, in particular overlaps, as soon as possible the component is arranged in the processing plane and / or aligned with respect to the nozzle box.
Nach einer vorteilhaften Ausgestaltung wird vorgeschlagen, dass der mindestens eine Düsenkasten zumindest teilweise doppelwandig gebildet ist und/oder zumindest teilweise ein Isoliermaterial aufweist. Bevorzugt ist der Düsenkasten im Be- reich des mindestens einen Erwärmungsbereichs beziehungsweise zumindest teilweise um den mindestens einen Erwärmungsbereich herum doppelwandig gebildet und/oder (thermisch) isoliert. Das Isoliermaterial ist insbesondere mit beziehungsweise aus einem mikroporösen Dämmstoff gebildet. Bevorzugt ist das Isoliermaterial zwischen Wänden und/oder Wandabschnitten des Düsenkastens angeordnet, die einen doppelwandigen Abschnitt des Düsenkastens bilden. Bevorzugt ist das Isoliermaterial temperaturbeständig für Temperaturen oberhalb von 1073,15 K. According to an advantageous embodiment, it is proposed that the at least one nozzle box is at least partially double-walled and / or at least partially has an insulating material. The nozzle box is preferably in the region of the at least one heating area or at least partially formed double-walled around the at least one heating area and / or (thermally) isolated. The insulating material is formed in particular with or from a microporous insulating material. Preferably, the insulating material between walls and / or wall portions of the nozzle box is arranged, which form a double-walled portion of the nozzle box. The insulating material is preferably temperature-resistant for temperatures above 1073.15 K.
Nach einem weiteren Aspekt wird eine Vorrichtung zur (partiellen) Wärmebe handlung eines metallischen Bauteils vorgeschlagen, zumindest umfassend: According to a further aspect, an apparatus for (partial) heat treatment of a metallic component is proposed, at least comprising:
einen, insbesondere mittels Strahlungswärme und/oder Konvektion be heizbaren ersten Ofen,  a, in particular by means of radiant heat and / or convection be heated first furnace,
eine dem ersten Ofen nachgeordnete, hier vorgestellte Temperierstation. Nach einer vorteilhaften Ausgestaltung wird vorgeschlagen, dass die Vorrichtung weiterhin zumindest umfasst:  a temperature control station downstream of the first furnace, presented here. According to an advantageous embodiment, it is proposed that the device further comprises at least
einen der Temperierstation nachgeordneten, insbesondere mittels Strahlungswärme und/oder Konvektion beheizbaren zweiten Ofen, und/oder ein der Temperierstation und/oder dem zweiten Ofen nachgeordnetes Presshärtewerkzeug.  one of the tempering station downstream, in particular by means of radiant heat and / or convection heated second oven, and / or a tempering station and / or the second furnace downstream press hardening tool.
Nach einer weiteren vorteilhaften Ausgestaltung wird vorgeschlagen, dass zumindest der erste Ofen oder der zweite Ofen ein Durchlaufofen oder ein Kammerofen ist. Bevorzugt ist der erste Ofen ein Durchlaufofen, insbesondere ein Rollen- herdofen. Besonders bevorzugt ist der zweite Ofen ein Durchlaufofen, insbesondere ein Rollenherdofen, oder ein Kammerofen, insbesondere ein Mehrlagen- kammerofen mit mindestens zwei übereinander angeordneten Kammern. Bevorzugt weist der zweite Ofen einen, insbesondere (ausschließlich) mittels Strahlungswärme beheizbaren, Ofeninnenraum auf, in dem vorzugsweise eine nahezu einheitliche Innentemperatur einstellbar ist. Insbesondere wenn der zweite Ofen als Mehrlagenkammerofen ausgeführt ist, können, entsprechend der Anzahl der Kammern, mehrere solcher Ofeninnenräume vorhanden sein. According to a further advantageous embodiment, it is proposed that at least the first furnace or the second furnace is a continuous furnace or a chamber furnace. The first furnace is preferably a continuous furnace, in particular a roller hearth furnace. The second furnace is particularly preferably a continuous furnace, in particular a roller hearth furnace, or a chamber furnace, in particular a multi-layer furnace with at least two chambers arranged one above the other. The second furnace preferably has a furnace interior, in particular (exclusively) which can be heated by means of radiant heat, in which preferably a virtually uniform internal temperature can be set. Especially if the second oven is designed as a multilayer chamber furnace, according to the number of chambers, several such furnace interior spaces may be present.
Bevorzugt sind in dem ersten Ofen und/oder in dem zweiten Ofen (ausschließlich) Strahlungswärmequellen angeordnet. Besonders bevorzugt ist in einem Ofeninnenraum des ersten Ofens und/oder in einem Ofeninnenraum des zweiten Ofens mindestens ein elektrisch betriebenes (das Bauteil nicht kontaktierendes) Heizelement, wie beispielsweise mindestens eine elektrisch betriebene Heizschleife und/oder mindestens ein elektrisch betriebener Heizdraht angeordnet. Alternativ oder zusätzlich kann in dem Ofeninnenraum des ersten Ofens und/oder dem Ofeninnenraum des zweiten Ofens mindestens ein insbesondere gasbeheiztes Strahlrohr angeordnet sein. Vorzugsweise sind in dem Ofeninnenraum des ersten Ofens und/oder dem Ofeninnenraum des zweiten Ofens mehrere Strahlrohrgasbrenner beziehungsweise Strahlrohre angeordnet, in die jeweils mindestens ein Gasbren- ner hineinbrennt. Hierbei ist es besonders vorteilhaft, wenn der innere Bereich der Stahlrohre, in den die Gasbrenner hineinbrennen, atmosphärisch von dem Ofeninnenraum getrennt ist, so dass keine Verbrennungsgase oder Abgase in den Ofeninnenraum gelangen und somit die Ofenatmosphäre beeinflussen können. Eine solche Anordnung wird auch als„indirekte Gasbeheizung" bezeichnet. Radiation heat sources are preferably arranged in the first furnace and / or in the second furnace (exclusively). Particularly preferably, at least one electrically operated (component non-contacting) heating element, such as at least one electrically operated heating loop and / or at least one electrically operated heating wire is arranged in a furnace interior of the first furnace and / or in a furnace interior of the second furnace. Alternatively or additionally, at least one in particular gas-heated jet pipe can be arranged in the furnace interior of the first furnace and / or the furnace interior of the second furnace. Preferably, a plurality of jet tube gas burners or jet tubes are arranged in the furnace interior of the first furnace and / or the furnace interior of the second furnace, in each of which at least one gas burner burns. In this case, it is particularly advantageous if the inner region of the steel tubes, into which the gas burners burn, is atmospherically separated from the furnace interior, so that no combustion gases or exhaust gases can enter the furnace interior and thus influence the furnace atmosphere. Such an arrangement is also referred to as "indirect gas heating".
Die im Zusammenhang mit den Temperierstationen erörterten Details, Merkmale und vorteilhaften Ausgestaltungen können entsprechend auch bei der hier vorgestellten Vorrichtung auftreten und umgekehrt. Insoweit wird auf die dortigen Ausführungen zur näheren Charakterisierung der Merkmale vollumfänglich Bezug genommen. The details, features and advantageous embodiments discussed in connection with the temperature control stations can accordingly also occur in the device presented here and vice versa. In that regard, reference is made in full to the statements there for a more detailed characterization of the features.
Nach einem weiteren Aspekt wird eine Verwendung eines zumindest teilweise mit einem keramischen Material gebildeten Düsenkastens in einer Temperierstation vorgeschlagen, wobei der Düsenkasten zum partiellen Wärmebehandeln eines metallischen Bauteils verwendet wird. Die im Zusammenhang mit den Temperierstationen und/oder der Vorrichtung erörterten Details, Merkmale und vorteilhaften Ausgestaltungen können entsprechend auch bei der hier vorgestellten Verwendung auftreten und umgekehrt. Insoweit wird auf die dortigen Ausführungen zur näheren Charakterisierung der Merkmale vollumfänglich Bezug genommen. According to a further aspect, a use of a nozzle box formed at least partially with a ceramic material in a tempering station is proposed, wherein the nozzle box is used for the partial heat treatment of a metallic component. The details, features and advantageous embodiments discussed in connection with the tempering stations and / or the device can accordingly also occur with the use presented here and vice versa. In that regard, reference is made in full to the statements there for a more detailed characterization of the features.
Die Erfindung, sowie das technische Umfeld werden nachfolgend anhand der Figuren näher erläutert. Es ist darauf hinzuweisen, dass die Erfindung durch die gezeigten Ausführungsbeispiele nicht beschränkt werden soll. Insbesondere ist es, soweit nicht explizit anders dargestellt, auch möglich, Teilaspekte der in den Figuren erläuterten Sachverhalte zu extrahieren und mit anderen Bestandteilen und/oder Erkenntnissen aus anderen Figuren und/oder der vorliegenden Beschreibung zu kombinieren. Es zeigen: The invention and the technical environment will be explained in more detail with reference to the figures. It should be noted that the invention should not be limited by the embodiments shown. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and to combine them with other components and / or findings from other figures and / or the present description. Show it:
Fig. 1 : eine schematische Darstellung einer erfindungsgemäßen Temperierstation, 1 shows a schematic representation of a tempering station according to the invention,
Fig. 2: eine schematische Darstellung einer weiteren erfindungsgemäßen Fig. 2: a schematic representation of another invention
Temperierstation,  heating station,
Fig. 3: eine perspektivische Ansicht eines geschnitten dargestellten Düsenkastens, der in einer erfindungsgemäßen Temperierstation zum Einsatz kommen kann, 3 is a perspective view of a nozzle box shown in section, which can be used in a tempering station according to the invention,
Fig. 4: eine schematische Darstellung einer erfindungsgemäßen Vorrichtung. 4 shows a schematic representation of a device according to the invention.
Fig. 1 zeigt eine schematische Darstellung einer Temperierstation 1 zur partiellen Wärmebehandlung eines metallischen Bauteils 2. In der Temperierstation 1 ist eine Bearbeitungsebene 3 angeordnet, in der das Bauteil 2 liegt. Die Temperierstation 1 weist beispielhaft eine Düse 4 auf, die hin zu der Bearbeitungsebene 3 ausgerichtet und zum Austragen eines Fluidstroms 5 zum Kühlen mindestens eines ersten Teilbereichs 6 des Bauteils 2 vorgesehen und eingerichtet ist. Zudem weist die Temperierstation 1 beispielhaft eine Wärmequelle 9 auf, die dazu vorgesehen und eingerichtet ist, Wärmeenergie in mindestens einen zweiten Teilbereich 10 des Bauteils 2 einzutragen. Die Wärmequelle 9 ist hier beispielhaft in der Art eines bestrombaren Heizdrahtes gebildet. Darüber hinaus weist die Temperierstation 1 einen Düsenkasten 7 auf, der oberhalb der Bearbeitungsebene 3 angeordnet ist. Der Düsenkasten 7 bildet hier einen Düsenbereich 8, in dem die Düse 4 zumindest teilweise angeordnet ist. Zudem bildet der Düsenkasten 7 gemäß der Darstellung nach Fig. 1 einen von dem Düsenbereich 8 getrennten Erwärmungsbereich 11, in dem die Wärmequelle 9 zumindest teilweise angeordnet ist. In Fig. 1 ist der Düsenkasten 7 mit beziehungsweise sind die Wände 18 des Düsenkastens 7 aus einem keramischen Material gebildet. Als keramisches Material dient hier beispielhaft eine faserverstärkte Aluminiumoxid-Keramik. Zudem ist in Fig. 1 gezeigt, dass der Düsenkasten 7 um den Erwärmungsbereich 11 herum doppelwandig gebildet ist und zwischen den Wänden 18, die den doppelwandigen Abschnitt des Düsenkastens 7 bilden, ein Isoliermaterial 13 aufweist. FIG. 1 shows a schematic representation of a tempering station 1 for the partial heat treatment of a metallic component 2. In the tempering station 1 arranged a working plane 3, in which the component 2 is located. By way of example, the tempering station 1 has a nozzle 4, which is aligned towards the working plane 3 and provided and arranged for discharging a fluid flow 5 for cooling at least a first subregion 6 of the component 2. In addition, the tempering station 1 has by way of example a heat source 9, which is provided and arranged to record heat energy in at least a second subregion 10 of the component 2. The heat source 9 is formed here by way of example in the manner of a currentable heating wire. In addition, the tempering 1 has a nozzle box 7, which is arranged above the working plane 3. The nozzle box 7 here forms a nozzle region 8, in which the nozzle 4 is at least partially arranged. In addition, the nozzle box 7, as shown in FIG. 1, forms a heating area 11 separate from the nozzle area 8, in which the heat source 9 is arranged at least partially. In Fig. 1, the nozzle box 7 with or the walls 18 of the nozzle box 7 are formed of a ceramic material. The ceramic material used here is exemplified by a fiber-reinforced alumina ceramic. In addition, it is shown in FIG. 1 that the nozzle box 7 is double-walled around the heating area 11 and has an insulating material 13 between the walls 18 forming the double-walled portion of the nozzle box 7.
Gemäß der Darstellung nach Fig. 1 ist zudem gezeigt, dass der Düsenbereich 8 derart geformt ist, dass er einen Bereich der Bearbeitungsebene 3 überspannt, in dem der erste Teilbereich 6 des Bauteils 2 angeordnet ist, sobald das Bauteil 2 in der Bearbeitungsebene 3 angeordnet und bezüglich des Düsenkastens 7 ausgerichtet ist. Zudem ist der Erwärmungsbereich 11 derart geformt, dass er einen Bereich der Bearbeitungsebene 3 überspannt, in dem der zweite Teilbereich 10 des Bauteils 2 angeordnet ist. Mit anderen Worten ausgedrückt, weist ein hier senkrecht zu der Zeichenebene und parallel zu der Bearbeitungsebene 3 ausgerichteter Querschnitt des Düsenbereichs 8 eine Form auf, die der (zu erzielenden) Form beziehungsweise Geometrie des ersten Teilbereichs 6 entspricht. Dementsprechend weist ein hier senkrecht zu der Zeichenebene und parallel zu der Bearbeitungsebene 3 ausgerichteter Querschnitt des Erwärmungsbereichs 11 eine Form auf, die der (zu erzielenden) Form beziehungsweise Geometrie des zweiten Teil- bereichs 10 entspricht. According to the illustration according to FIG. 1, it is furthermore shown that the nozzle region 8 is shaped such that it spans a region of the working plane 3 in which the first subregion 6 of the component 2 is arranged as soon as the component 2 is arranged in the working plane 3 and is aligned with respect to the nozzle box 7. In addition, the heating area 11 is shaped such that it spans a region of the working plane 3 in which the second partial area 10 of the component 2 is arranged. In other words, a cross-section of the nozzle area 8 aligned perpendicular to the plane of the drawing and parallel to the working plane 3 has a shape that corresponds to the shape to be achieved or geometry of the first portion 6 corresponds. Correspondingly, a cross section of the heating area 11 aligned perpendicular to the plane of the drawing and parallel to the working plane 3 has a shape which corresponds to the shape or geometry of the second subarea 10 (to be achieved).
Der Düsenbereich 8 und der Erwärmungsbereich 11 sind mittels des Düsenkastens voneinander (thermisch) getrennt, so dass dem Bauteil 2 ein Temperaturprofil mit möglichst exakt voneinander abgegrenzten, unterschiedlich temperierten Teilbe- reichen aufgeprägt werden kann. Dadurch, dass in dem ersten Teilbereich 6 durch die Abkühlung mittels der Düse 4 eine deutliche Temperaturdifferenz zwischen dem ersten Teilbereich 6 und dem zweiten Teilbereich 10 eingestellt wird, können sich nach einem Härten in einem der Temperierstation 1 nachgelagerten Presshärtewerkzeug (hier nicht dargestellt) in den Teilbereichen 6, 10 voneinander ver- schiedene Materialgefüge und/oder Festigkeitseigenschaften einstellen, wobei sich in dem gekühlten ersten Teilbereich 6 ein duktileres Gefüge und/oder eine geringere Härte einstellen kann als in dem zweiten Teilbereich 10. The nozzle area 8 and the heating area 11 are separated from one another (thermally) by means of the nozzle box so that a temperature profile can be impressed on the component 2 with subregions of differing temperature that are as exactly delimited as possible. Due to the fact that a distinct temperature difference between the first sub-area 6 and the second sub-area 10 is set in the first sub-area 6 by the cooling by means of the nozzle 4, after a hardening in a tempering station 1 downstream press-hardening tool (not shown here) in the Divisions 6, 10 set different material structure and / or strength properties of each other, wherein in the cooled first portion 6 a ductile structure and / or a lower hardness can be set as in the second portion 10th
Fig. 2 zeigt eine schematische Darstellung einer weiteren Temperierstation 1 zur partiellen Wärmebehandlung eines metallischen Bauteils 2. Da die Bezugszeichen einheitlich verwendet werden, werden hier lediglich die Unterschiede zu der in Fig. 1 dargestellten Temperierstation erörtert. Darüber hinaus wird auf die Erläuterungen zu Fig. 1 verwiesen, die hier vollständig in Bezug genommen werden. Ein erster Unterschied besteht darin, dass hier zwei Düsen 4 gezeigt sind, die zu einem Düsenfeld 12 angeordnet sind. 2 shows a schematic illustration of a further tempering station 1 for the partial heat treatment of a metallic component 2. Since the reference numbers are used uniformly, only the differences from the tempering station shown in FIG. 1 are discussed here. In addition, reference is made to the explanations of FIG. 1, which are fully incorporated herein by reference. A first difference is that here two nozzles 4 are shown, which are arranged to a nozzle array 12.
Darüber hinaus ist in Fig. 2 beispielhaft veranschaulicht, dass der Düsenbereich 8 auch derart gebildet sein kann, dass er eine Ausbreitung des Fluidstroms 5 zumindest teilweise, hier beispielhaft seitlich begrenzt, ohne dass die Düse(n) selbst in dem Düsenbereich 8 angeordnet sein müssen. In analoger Weise ist der Erwär- mungsbereich 11 hier beispielhaft derart von dem Düsenkasten 7 gebildet, dass er eine Ausbreitung von Wärmeenergie zumindest teilweise, hier beispielhaft seitlich begrenzt. Hierzu kann beispielsweise Wärmestrahlung, die in Fig. 2 mittels punktierten Linien angedeutet ist, an den innenliegenden Wänden 18 des Erwärmungs- bereichs 11 reflektiert werden. Moreover, FIG. 2 illustrates by way of example that the nozzle region 8 can also be formed such that it at least partially, for example laterally limited, propagate the fluid flow 5 without the nozzle (s) themselves having to be arranged in the nozzle region 8 , In an analogous way, the heating Here, by way of example, the region 11 is formed by the nozzle box 7 in such a way that it at least partially delimits an expansion of thermal energy, for example laterally. For this purpose, for example, thermal radiation, which is indicated in FIG. 2 by means of dotted lines, can be reflected on the inner walls 18 of the heating area 11.
Fig. 3 zeigt eine perspektivische Ansicht eines geschnitten dargestellten Düsenkastens 7, der in einer erfindungsgemäßen Temperierstation (hier nicht dargestellt) zum Einsatz kommen kann. Der Düsenkasten 7 bildet hier beispielhaft meh- rere Düsenbereiche 8, in denen Düsen (hier nicht dargestellt) angeordnet werden können und/oder in die Düsen hineinblasen können. Zudem bildet der Düsenkasten 7 mehrere Erwärmungsbereiche 11, in denen eine oder mehrere Wärmequellen (hier nicht dargestellt) angeordnet werden können. Zudem sind die Düsenbereiche 8 von den Erwärmungsbereichen 11 mittels der Wände 18 des Düsenkastens 7 und mittels Isoliermaterial 13 getrennt. FIG. 3 shows a perspective view of a nozzle box 7 shown in section, which can be used in a tempering station according to the invention (not shown here). The nozzle box 7 forms here by way of example a plurality of nozzle regions 8 in which nozzles (not shown here) can be arranged and / or can blow into the nozzles. In addition, the nozzle box 7 forms a plurality of heating areas 11, in which one or more heat sources (not shown here) can be arranged. In addition, the nozzle areas 8 are separated from the heating areas 11 by means of the walls 18 of the nozzle box 7 and by means of insulating material 13.
Fig. 4 zeigt eine schematische Darstellung einer erfindungsgemäßen Vorrichtung 14 zur Wärmebehandlung eines metallischen Bauteils 2. Die Vorrichtung 14 weist einen beheizbaren ersten Ofen 15, eine dem ersten Ofen 15 (direkt) nachgeordnete Temperierstation 1, einen der Temperierstation 1 (direkt) nachgeordneten, beheizbaren zweiten Ofen 16 und ein dem zweiten Ofen 16 (direkt) nachgeordnetes Presshärtewerkzeug 17 auf. Die Vorrichtung 14 stellt hier eine Warmformlinie für das (partielle) Presshärten dar. Es werden hier eine Temperierstation und eine Vorrichtung zur Wärmebehandlung eines metallischen Bauteils angegeben, die die mit Bezug auf den Stand der Technik geschilderten Probleme zumindest teilweise zu lösen. Insbesondere erlauben die Temperierstation und die Vorrichtung eine ausreichend zuverlässige thermische Abgrenzung von partiell auf das Bauteil einwirkenden Wärmebehand- lungsmaßnahmen und/oder eine ausreichend zuverlässige thermische Trennung von partiell auf das Bauteil einwirkenden, unterschiedlichen Wärmebehandlungsmaßnahmen. 4 shows a schematic representation of a device 14 according to the invention for the heat treatment of a metallic component 2. The device 14 has a heatable first furnace 15, a tempering station 1 (directly) downstream of the first furnace 15, a heatable (directly) downstream of the tempering station 1 second oven 16 and a second oven 16 (directly) downstream press hardening tool 17. Here, a tempering station and a device for heat treatment of a metallic component are specified, which at least partially solve the problems described with reference to the prior art. In particular, the tempering station and the device allow a sufficiently reliable thermal delimitation of heat treatment measures that are partially applied to the component and / or sufficiently reliable thermal separation of partially acting on the component, different heat treatment measures.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Temperierstation 1 temperature control station
2 Bauteil  2 component
3 Bearbeitungsebene  3 processing level
4 Düse  4 nozzle
5 Fluidstrom  5 fluid flow
6 erster Teilbereich  6 first subarea
7 Düsenkasten  7 nozzle box
8 Düsenbereich  8 nozzle area
9 Wärmequelle  9 heat source
10 zweiter Teilbereich  10 second subarea
11 Erwärmungsbereich  11 heating area
12 Düsenfeld  12 nozzle field
13 Isoliermaterial  13 insulating material
14 Vorrichtung  14 device
15 erster Ofen  15 first oven
16 zweiter Ofen  16 second oven
17 Presshärtewerkzeug  17 Press hardening tool
18 Wand  18 wall

Claims

Patentansprüche claims
Temperierstation (1) zur partiellen Wärmebehandlung eines metallischen Bauteils (2), mit einer in der Temperierstation (1) angeordneten Bearbeitungsebene (3), in der das Bauteil (2) anordenbar ist, mindestens einer Düse (4), die hin zu der Bearbeitungsebene (3) ausgerichtet und zum Austragen eines Fluidstroms (5) zum Kühlen mindestens eines ersten Teilbereichs (6) des Bauteils (2) vorgesehen und eingerichtet ist und mindestens einem Düsenkasten (7), der oberhalb der Bearbeitungsebene (3) angeordnet ist, wobei der mindestens eine Düsenkasten (7) mindestens einen Düsenbereich (8) bildet, in dem die mindestens eine Düse (4) zumindest teilweise anordenbar ist und/oder der eine Ausbreitung des Fluidstroms (5) zumindest teilweise begrenzt, wobei der mindestens eine Düsenkasten (7) zumindest teilweise mit einem keramischen Material gebildet ist. Temperature control station (1) for the partial heat treatment of a metallic component (2), with a in the tempering (1) arranged working plane (3) in which the component (2) can be arranged, at least one nozzle (4), which leads to the working plane (3) aligned and for discharging a fluid stream (5) for cooling at least a first portion (6) of the component (2) is provided and arranged and at least one nozzle box (7), which is arranged above the working plane (3), wherein the at least one nozzle box (7) forms at least one nozzle area (8) in which the at least one nozzle (4) can be arranged at least partially and / or which at least partially delimits an expansion of the fluid stream (5), the at least one nozzle box (7) at least partially formed with a ceramic material.
Temperierstation (1) zur partiellen Wärmebehandlung eines metallischen Bauteils Temperature control station (1) for the partial heat treatment of a metallic component
(2), mit einer in der Temperierstation (1) angeordneten Bearbeitungsebene (2), with a processing level arranged in the temperature control station (1)
(3), in der das Bauteil (2) anordenbar ist, mindestens einer Düse (3), in which the component (2) can be arranged, at least one nozzle
(4), die hin zu der Bearbeitungsebene (3) ausgerichtet und zum Austragen eines Fluidstroms (4) oriented towards the working plane (3) and for discharging a fluid flow
(5) zum Kühlen mindestens eines ersten Teilbereichs (5) for cooling at least a first portion
(6) des Bauteils (2) vorgesehen und eingerichtet ist, mindestens einer Wärmequelle (9), die dazu vorgesehen und eingerichtet ist, Wärmeenergie in mindestens einen zweiten Teilbereich (10) des Bauteils (2) einzutragen und mindestens einem Düsenkasten (7), der oberhalb der Bearbeitungsebene (3) angeordnet ist, wobei der mindestens eine Düsenkasten (7) mindestens einen Düsenbereich (8) bildet, in dem die mindestens eine Düse (4) zumindest teilweise anordenbar ist und/oder der eine Ausbreitung des Fluidstroms (5) zumindest teilweise begrenzt, wobei der mindestens eine Düsenkasten (7) mindestens einen von dem mindestens einen Düsenbereich (8) getrennten Erwärmungsbereich (11) bildet, in dem die Wärme- quelle (9) zumindest teilweise anordenbar ist und/oder der eine Ausbreitung von Wärmeenergie zumindest teilweise begrenzt. (6) of the component (2) is provided and set up, at least one heat source (9) which is provided and arranged to enter thermal energy in at least a second portion (10) of the component (2) and at least one nozzle box (7), which is arranged above the working plane (3), wherein the at least one nozzle box (7) forms at least one nozzle region (8), in which the at least one nozzle (4) can be arranged at least partially and / or which propagates the fluid flow (5). At least partially limited, wherein the at least one nozzle box (7) at least one of the at least one nozzle region (8) separate heating region (11), in which the heat source (9) is at least partially locatable and / or at least partially limits the spread of heat energy.
Temperierstation nach Anspruch 1 oder 2, wobei der mindestens eine Dü- senkasten (7) zumindest teilweise mit einem faserverstärkten keramischen Material gebildet ist. Temperature control station according to claim 1 or 2, wherein the at least one nozzle button (7) is formed at least partially with a fiber-reinforced ceramic material.
Temperierstation nach einem der vorhergehenden Ansprüche, wobei der mindestens eine Düsenkasten Temperature control station according to one of the preceding claims, wherein the at least one nozzle box
(7) zumindest teilweise mit einer Aluminiumoxid-Keramik gebildet ist. (7) is at least partially formed with an alumina ceramic.
Temperierstation nach einem der vorhergehenden Ansprüche, wobei in mindestens einem Düsenbereich (8) zumindest teilweise ein Düsenfeld (12) mit einer Vielzahl von Düsen (4) angeordnet ist. Temperature control station according to one of the preceding claims, wherein in at least one nozzle region (8) at least partially a nozzle array (12) with a plurality of nozzles (4) is arranged.
Temperierstation nach einem der vorhergehenden Ansprüche, wobei der mindestens eine Düsenbereich Temperature control station according to one of the preceding claims, wherein the at least one nozzle area
(8) derart geformt ist, dass er einen Bereich der Bearbeitungsebene (3) überspannt, in dem der mindestens eine erste Teilbereich (6) des Bauteils (2) anordenbar ist. (8) is shaped such that it spans a region of the working plane (3) in which the at least one first partial region (6) of the component (2) can be arranged.
Temperierstation nach einem der vorhergehenden Ansprüche, wobei der mindestens eine Düsenkasten (7) zumindest teilweise doppelwandig gebildet ist und/oder zumindest teilweise ein Isoliermaterial (13) aufweist. Temperature control station according to one of the preceding claims, wherein the at least one nozzle box (7) is at least partially double-walled and / or at least partially an insulating material (13).
Vorrichtung (14) zur Wärmebehandlung eines metallischen Bauteils (2), zumindest umfassend: Device (14) for heat treatment of a metallic component (2), comprising at least
einen beheizbaren ersten Ofen (15),  a heatable first oven (15),
eine dem ersten Ofen (15) nachgeordnete Temperierstation (1), die nach einem der vorhergehenden Ansprüche ausgebildet ist. a tempering station (1) arranged downstream of the first furnace (15) and designed according to one of the preceding claims.
9. Vorrichtung nach Anspruch 8, weiterhin zumindest umfassend: The apparatus of claim 8, further comprising at least
einen der Temperierstation (1) nachgeordneten, beheizbaren zweiten Ofen (16), und/oder  one of the tempering station (1) downstream, heated second oven (16), and / or
ein der Temperierstation (1) und/oder dem zweiten Ofen (16) nachge- ordnetes Presshärtewerkzeug (17).  one of the tempering station (1) and / or the second furnace (16) downstream press hardening tool (17).
Verwendung eines zumindest teilweise mit einem keramischen Material gebildeten Düsenkastens (7) in einer Temperierstation (1), zum partiellen Wärmebehandeln eines metallischen Bauteils (2). Use of a nozzle box (7) formed at least partially with a ceramic material in a tempering station (1), for the partial heat treatment of a metallic component (2).
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US11142807B2 (en) 2021-10-12
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JP7211942B2 (en) 2023-01-24
WO2018087191A1 (en) 2018-05-17

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