EP3408416B1 - Wärmebehandlungsverfahren und wärmebehandlungsvorrichtung - Google Patents

Wärmebehandlungsverfahren und wärmebehandlungsvorrichtung Download PDF

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Publication number
EP3408416B1
EP3408416B1 EP17703345.3A EP17703345A EP3408416B1 EP 3408416 B1 EP3408416 B1 EP 3408416B1 EP 17703345 A EP17703345 A EP 17703345A EP 3408416 B1 EP3408416 B1 EP 3408416B1
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EP
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Prior art keywords
steel component
temperature
furnace
heat treatment
regions
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EP17703345.3A
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German (de)
English (en)
French (fr)
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EP3408416A1 (de
Inventor
Andreas Reinartz
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Schwartz GmbH
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Schwartz GmbH
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Priority to PL17703345T priority Critical patent/PL3408416T3/pl
Publication of EP3408416A1 publication Critical patent/EP3408416A1/de
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    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/22—Martempering
    • 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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

Definitions

  • the invention relates to a method and a device for targeted component zone-specific heat treatment of a steel component.
  • body components with a favorable strength-to-weight ratio.
  • these components include, in particular, A and B pillars, side impact protection beams in doors, sills, frame parts, bumper bars, cross members for the floor and roof, front and rear side members.
  • the body shell with a safety cage usually consists of hardened sheet steel with a strength of approx. 1,500 MPa. Al-Si-coated steel sheets are often used here. The process of so-called press hardening was developed to manufacture a component from hardened sheet steel.
  • components with high strength are fundamentally desirable in order to obtain components that can withstand high mechanical loads and are lightweight.
  • high-strength components should also be able to have partially soft areas. This brings the desired, partially increased deformability in the event of a crash. This is the only way to reduce the kinetic energy of an impact and thus minimize the acceleration forces on the occupants and the rest of the vehicle.
  • modern joining processes require softened areas that enable the joining of identical or different materials. For example, fold, crimp or rivet connections that require deformable areas in the component must often be used.
  • the targeted heat treatment of the component takes place in a time-consuming treatment step, which has a significant influence on the cycle time of the entire heat treatment device.
  • Processes for heat treatment are known, for example from US 2015/299 817 A1 , DE 10 2014 201 259 A1 and DE 10 2010 049 205 A1 .
  • the object of the invention is therefore to provide a method and a device for targeted component zone-specific heat treatment of a steel component, with areas of different hardness and ductility being achievable, in which the influence on the cycle time of the entire heat treatment device is minimized.
  • this object is achieved by a method having the features of independent claim 1.
  • the object is also achieved by a device according to claim 8.
  • Advantageous developments result from the respective dependent claims.
  • a steel component is first heated to below the austenitizing temperature AC3.
  • the steel component is then transferred to a treatment station.
  • the second or the second area is cooled as quickly as possible within a treatment time t B.
  • the treatment station has a positioning device, with the aid of which the precise positioning of the individual areas is ensured.
  • the second or the second area is rapidly cooled by blowing a gaseous fluid, for example air or a protective gas, on.
  • the treatment station has, in an advantageous embodiment, a device for blowing on the second area or areas. This device can, for example, have one or more nozzles.
  • the second or the second area is blown on by blowing a gaseous fluid, with water, for example in atomized form, being added to the gaseous fluid.
  • the device has one or more atomizing nozzles.
  • the heat dissipation from or from the second regions is increased.
  • the treatment time t B is usually in the range of a few seconds.
  • the second or the second area can also be cooled down to well below the martensite start temperature M S.
  • the martensite start temperature M S for the frequently used structural steel 22MnB5, for example, is approx. 410 ° C.
  • the first area or the The first areas are not subjected to any special treatment in the treatment station, ie they are neither blown on nor heated or cooled by other special measures.
  • the first area or areas slowly cool down in the treatment station, for example via natural convection. It has proven to be advantageous if measures are taken in the treatment station to reduce the temperature losses in the first or the first area. Such measures can be, for example, the attachment of a heat radiation reflector and / or the insulation of surfaces of the treatment station in the area of the first or the first area.
  • the steel component is transferred to a second furnace.
  • the entire steel component is heated in this second furnace.
  • the heating can take place, for example, by thermal radiation.
  • the steel component remains in the second furnace during a dwell time t 130 , which is dimensioned such that the temperature of the first or the first area rises above the AC3 temperature. Since the second or the second area from the previous process steps have a significantly lower temperature at the beginning of the dwell time t 130 than the first area or areas, they did not reach the AC3 temperature by the end of the dwell time t 130 in the second furnace.
  • the steel component can then be transferred to a press hardening tool, the first or the first areas being completely austenitized, while the second or the second areas are not austenitized, so that the quenching during subsequent press hardening causes the first and the first areas to have a martensitic structure form high strength values. Since the second or the second area was never austenitized in the process, after the press hardening step they have a feritic-pearlitic structure with only low strength values and high ductility.
  • the components are moved after a few seconds in the treatment station, which can also have a positioning device to ensure the exact positioning of the different areas, conveyed into a second oven, which preferably does not have special devices for different treatment of the different areas.
  • a furnace temperature ⁇ 4 ie an essentially homogeneous temperature in the entire furnace space, is set, which is above the austenitizing temperature AC3.
  • Clearly contoured delimitations of the individual areas can be realized and the warpage of the components is minimized due to the small temperature difference between the two areas. Slight differences in the temperature level of the component have an advantageous effect on further processing in the press.
  • a continuous furnace is advantageously provided as the first furnace.
  • Continuous ovens usually have a large capacity and are particularly well suited for mass production because they can be loaded and operated without great effort.
  • a batch furnace for example a chamber furnace, can also be used as the first furnace.
  • the second furnace is advantageously a continuous furnace.
  • both the first and the second furnace are designed as continuous furnaces, the necessary dwell times for the first and second area (s) can be implemented depending on the component length by setting the conveying speed and the design of the respective furnace length. Influencing the cycle time of the entire production line with heat treatment device and press for subsequent press hardening can thus be avoided.
  • the second furnace is a batch furnace, for example a chamber furnace.
  • the treatment station has a device for rapidly cooling one or more second areas of the steel component.
  • the device has a Nozzle for blowing on the second region or regions of the steel component with a gaseous fluid, for example air or a protective gas such as nitrogen.
  • a gaseous fluid for example air or a protective gas such as nitrogen.
  • the device has one or more atomizing nozzles. By blowing the gaseous fluid mixed with water against it, the heat dissipation from or from the second regions is increased.
  • the second or the second areas are cooled via thermal conduction, for example by bringing them into contact with a stamp or several stamps, which has or have a significantly lower temperature than the steel component.
  • the stamp can be made of a material that conducts heat well and / or can be cooled directly or indirectly. A combination of the types of cooling is also conceivable.
  • steel components each with one or more first and / or second areas, which can also have a complex shape, can be economically impressed with a corresponding temperature profile, since the different areas can be brought to the necessary process temperatures very quickly with sharp contours .
  • the heat treatment device according to the invention, it is possible to set almost any number of second areas.
  • the second or the second area was never austenitized during the course of the process and, even after pressing, has low strength values similar to the original strengths of the untreated steel component.
  • the selected geometry of the sub-areas can also be freely selected. Point-shaped or line-shaped areas as well as large areas, for example, can be displayed. The location of the areas is also irrelevant.
  • the second areas can be completely enclosed by the first areas, or they can be located on the edge of the steel component. Even a full-surface treatment is conceivable.
  • One special orientation of the steel component to the direction of passage is not necessary for the purpose of the method according to the invention for the targeted component zone-specific heat treatment of a steel component.
  • the number of steel components treated at the same time is limited by the press hardening tool or the conveyor technology of the entire heat treatment device.
  • the process can also be used on preformed steel components.
  • the three-dimensionally shaped surfaces of already preformed steel components only result in a higher structural effort for the representation of the opposing surfaces.
  • Fig. 1 is a typical temperature curve during the heat treatment of a steel component 200 with a first area 210 and a second area 220 according to the inventive method.
  • the steel component 200 is heated in the first furnace 110 according to the schematically drawn temperature curve ⁇ 200, 110 during the dwell time t 110 in the first furnace to a temperature below the AC3 temperature.
  • the steel component 200 is then transferred to the treatment station 150 with a transfer time t 120.
  • the steel component loses heat in the process.
  • a second area 220 of the steel component 200 is rapidly cooled, the second area 220 losing heat in accordance with the curve ⁇ 220, 150 drawn.
  • the blowing ends after the treatment time t B has elapsed, which is only a few seconds depending on the thickness of the steel component 200 and the size of the second area 220.
  • the treatment time t B is equal to the dwell time t 150 in the treatment station 150.
  • the second area 220 has now reached the cooling stop temperature ⁇ S.
  • the temperature of the first area 210 in the treatment station 150 has also fallen in accordance with the drawn-in temperature curve ⁇ 210, 150, the first area 210 not being in the area of the cooling device.
  • the steel component 200 is transferred to the second furnace 130 during the transfer time t 121 , where it continues to lose heat.
  • the second oven 130 changes the temperature of the first area 210 of the steel component 200 according to the schematically drawn temperature curve ⁇ 210,130 during the dwell time t 130 , ie the temperature of the first area 210 of the steel component 200 is heated to a temperature above the AC3 temperature.
  • the temperature of the second region 220 of the steel component 200 also rises according to the drawn temperature profile ⁇ 220, 130 during the dwell time t 130 without reaching the AC3 temperature.
  • the second furnace 130 has no special devices for the different treatment of the different areas 210, 220. Only a furnace temperature ⁇ 4 , ie an essentially homogeneous temperature ⁇ 4 in the entire interior of the second furnace 130, is set, which is above the austenitizing temperature AC3 lies.
  • the dwell time t 130 of the steel component 200 in the second furnace 130 is dimensioned such that the first area or the first areas at the end of the dwell time t 130 have a temperature above the AC3 temperature, while the second or the second area is the AC3 at this point in time - have not yet reached temperature.
  • the steel component can be transferred to a press hardening tool 160, which is installed in a press (not shown), during a transfer time t 131.
  • a press hardening tool 160 which is installed in a press (not shown), during a transfer time t 131.
  • the steel component 200 loses heat again, so that the temperature of the first area or areas can also drop below the AC3 temperature. However, this or these areas are essentially completely austenitized when they leave the second furnace 130, so that they are converted into a hard martensitic structure by being quenched during a dwell time t 160 in the press hardening tool 160.
  • contoured delimitations of the individual areas 210, 220 can be implemented between the two areas 210, 220 and the warpage of the steel component 200 is minimized due to the small temperature difference. Slight spreads in the temperature level of the steel component 200 have an advantageous effect during further processing in the press hardening tool 160.
  • the necessary dwell time t 130 of the steel component 200 in the second furnace 130 can be implemented as a function of the length of the steel component 200 by setting the conveying speed and the design of the length of the second furnace 130. Influencing the cycle time of the heat treatment device 100 is thus minimized, it can even be avoided entirely.
  • Fig. 2 shows a heat treatment device 100 according to the invention in a 90 ° arrangement.
  • the heat treatment device 100 has a loading station 101, via which steel components are fed to the first furnace 110. Furthermore, the heat treatment device 100 has the treatment station 150 and the second furnace 130 arranged behind it in the main flow direction D.
  • a removal station 131 which is equipped with a positioning device (not shown), is arranged further downstream in the main flow direction D.
  • the main flow direction now bends by essentially 90 ° in order to allow a press hardening tool 160 to follow in a press (not shown) in which the steel component 200 is press hardened.
  • a container 161 is arranged, into which rejects can be placed.
  • the first furnace 110 and the second furnace 120 are preferably designed as continuous furnaces, for example roller hearth furnaces.
  • Fig. 3 shows a heat treatment device 100 according to the invention in a straight arrangement.
  • the heat treatment device 100 has a loading station 101, via which steel components are fed to the first furnace 110.
  • the heat treatment device 100 has the treatment station 150 and the second furnace 130 arranged behind it in the main flow direction D.
  • a removal station 131 which is equipped with a positioning device (not shown), is arranged further downstream in the main flow direction D.
  • a press hardening tool 160 in a press (not shown), in which the steel component 200 is press hardened.
  • a container 161 is arranged essentially at 90 ° to the removal station 131, into which reject parts can be brought.
  • the first furnace 110 and the second furnace 120 are also preferably designed as continuous furnaces, for example roller hearth furnaces.
  • Fig. 4 shows a further variant of a heat treatment device 100 according to the invention.
  • the heat treatment device 100 again has a loading station 101, via which steel components are fed to the first furnace 110.
  • the first furnace 110 is again preferably designed as a continuous furnace.
  • the heat treatment device 100 has the treatment station 150, which in this embodiment is combined with a removal station 131.
  • the removal device 131 can, for example, have a gripping device (not shown).
  • the removal station 131 removes the steel components 200 from the first furnace 110, for example by means of the gripping device.
  • the heat treatment with the cooling of the second or the second area 220 is carried out and the steel components or the steel components 200 are at a substantially 90 ° to the axis of the first Oven 110 arranged second oven 130 inserts.
  • this second furnace 130 is preferably provided as a chamber furnace, for example with a plurality of chambers.
  • the steel components 200 are removed from the second furnace 130 via the removal station 131 and placed in an opposite press hardening tool 160 installed in a press (not shown).
  • the removal station 131 can have a positioning device (not shown).
  • a container 161 is arranged behind the removal station 131, into which reject parts can be brought.
  • the main flow direction D describes a deflection of essentially 90 °.
  • a second positioning system for the treatment station 150 is not required.
  • the cooling of the second areas 220 of the steel component 200 can also take place between the removal station 131 and the second furnace 130, so that a stationary treatment station 150 is not required.
  • a cooling device for example a blower nozzle, can be integrated into the gripping device.
  • the removal device 131 ensures the transfer of the steel component 200 from the first furnace 110 into the second furnace 130 and into the press hardening tool 160 or into the container 161.
  • the position of press hardening tool 160 and container 161 can be exchanged, as in FIG Fig. 5 to see.
  • the main flow direction D describes two deflections of essentially 90 °.
  • a heat treatment device according to FIG Fig. 6 an Compared to the in Fig. 4
  • the second furnace 130 is offset in a second level above the first furnace 110.
  • the cooling of the second areas 220 of the steel component 200 can also take place between the removal station 131 and the second furnace 130, so that there is no need for a stationary treatment station 150.
  • FIG. 7 a last embodiment of the heat treatment device according to the invention is shown schematically. Compared to the in Fig. 6 In the embodiment shown, the positions of press hardening tool 160 and container 161 are reversed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP17703345.3A 2016-01-25 2017-01-25 Wärmebehandlungsverfahren und wärmebehandlungsvorrichtung Active EP3408416B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17703345T PL3408416T3 (pl) 2016-01-25 2017-01-25 Sposób obróbki cieplnej i urządzenie do obróbki cieplnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016201025.5A DE102016201025A1 (de) 2016-01-25 2016-01-25 Wärmebehandlungsverfahren und Wärmebehandlungsvorrichtung
PCT/EP2017/051510 WO2017129602A1 (de) 2016-01-25 2017-01-25 Wärmebehandlungsverfahren und wärmebehandlungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3408416A1 EP3408416A1 (de) 2018-12-05
EP3408416B1 true EP3408416B1 (de) 2021-11-10

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EP17703345.3A Active EP3408416B1 (de) 2016-01-25 2017-01-25 Wärmebehandlungsverfahren und wärmebehandlungsvorrichtung

Country Status (14)

Country Link
US (1) US20190032164A1 (pt)
EP (1) EP3408416B1 (pt)
JP (2) JP7168450B2 (pt)
KR (1) KR102672034B1 (pt)
CN (2) CN206204351U (pt)
AT (1) AT15624U1 (pt)
BR (1) BR112018014947B1 (pt)
DE (2) DE102016201025A1 (pt)
ES (1) ES2904571T3 (pt)
HU (1) HUE057631T2 (pt)
MX (1) MX2018008998A (pt)
PL (1) PL3408416T3 (pt)
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DE102016201025A1 (de) 2017-07-27
JP2021179012A (ja) 2021-11-18
CN206204351U (zh) 2017-05-31
JP7168450B2 (ja) 2022-11-09
JP7261267B2 (ja) 2023-04-19
MX2018008998A (es) 2019-01-10
KR20180119580A (ko) 2018-11-02
HUE057631T2 (hu) 2022-05-28
ES2904571T3 (es) 2022-04-05
WO2017129602A1 (de) 2017-08-03
PL3408416T3 (pl) 2022-03-28
BR112018014947A2 (pt) 2018-12-26
PT3408416T (pt) 2022-01-26
BR112018014947B1 (pt) 2022-11-22
KR102672034B1 (ko) 2024-06-03
JP2019506532A (ja) 2019-03-07
US20190032164A1 (en) 2019-01-31
CN108884508A (zh) 2018-11-23
CN108884508B (zh) 2020-08-14
AT15624U1 (de) 2018-03-15
DE202016104194U1 (de) 2017-04-27

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