EP3013994A1 - Diffusion d'alumino-silicium dans une bande continue de tôle d'acier - Google Patents

Diffusion d'alumino-silicium dans une bande continue de tôle d'acier

Info

Publication number
EP3013994A1
EP3013994A1 EP14733592.1A EP14733592A EP3013994A1 EP 3013994 A1 EP3013994 A1 EP 3013994A1 EP 14733592 A EP14733592 A EP 14733592A EP 3013994 A1 EP3013994 A1 EP 3013994A1
Authority
EP
European Patent Office
Prior art keywords
furnace
steel sheet
web
steel
sheet web
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
EP14733592.1A
Other languages
German (de)
English (en)
Other versions
EP3013994B1 (fr
Inventor
Rolf-Josef Schwartz
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 EP14733592.1A priority Critical patent/EP3013994B1/fr
Publication of EP3013994A1 publication Critical patent/EP3013994A1/fr
Application granted granted Critical
Publication of EP3013994B1 publication Critical patent/EP3013994B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/63—Continuous furnaces for strip or wire the strip being supported by a cushion of gas
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/02—Pretreatment of the material to be coated
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/52—Embedding in a powder mixture, i.e. pack cementation more than one element being diffused in one step
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/60—After-treatment
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • 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
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • 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
    • F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
    • 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
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • 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
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/39—Arrangements of devices for discharging
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/009—Pearlite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0075—Charging or discharging vertically, e.g. through a bottom opening

Definitions

  • the invention relates to an apparatus and a method for diffusing aluminum-silicon (Al-Si) into a surface of an Al-Si-coated one
  • Sheet steel track which forms a high-melting aluminum-silicon-iron alloy due to the indiffusion.
  • Ratio of strength to weight include in particular A and B pillars, side impact protection in doors, sills, frame parts,
  • Bumper cross member for floor and roof, front and rear
  • the body shell with a safety cage usually consists of a hardened steel sheet with about 1, 500 MPa strength.
  • furnaces enforced for the heat treatment.
  • the metal parts to be treated are continuously conveyed through the oven.
  • chamber furnaces can also be used in which the metal parts are batchwise placed in a chamber, heated there and then removed again.
  • a board is also punched out of a steel strip, however, there is no pre-deformation, but the board is fed directly to the furnace. After the heat treatment, the hot board is fed to the press and deformed in an indirectly water-cooled tool and simultaneously press-hardened. Subsequently, the molded components are trimmed again if necessary.
  • roller hearth furnaces As an alternative furnace design, for example, the walking beam furnace may be mentioned, in which the metal parts are transported by lifting bars through the oven. Also, the walking beam furnace may be mentioned, in which the metal parts are transported by lifting bars through the oven. Also, the walking beam furnace may be mentioned, in which the metal parts are transported by lifting bars through the oven. Also, the walking beam furnace may be mentioned, in which the metal parts are transported by lifting bars through the oven. Also, the walking beam furnace may be mentioned, in which the metal parts are transported by lifting bars through the oven. Also
  • Multilayer kilns are becoming increasingly important.
  • Chamber furnaces for this procedure can also be equipped with a lock. However, it is also possible with this type of furnace to exchange the atmosphere in the furnace chamber for each cycle. Continuous furnaces for this process must be equipped with a product carrier return conveyor system to ensure the circulation of the product carriers. Ceramic ovens are used in these ovens. Only the entry and exit tables and the goods carrier return conveyor are equipped with metal conveyor rollers.
  • Another advantage of this type is the positive effect of the conveyor roller on the uniform heating of the metal parts to be treated to see: heated by the furnace heating with stationary rollers heated by radiation and heat conduction transported on them and therefore in contact with them in contact metal part in addition ,
  • these ovens are operated with a significantly lower energy consumption, since there are no goods carrier, which can cool down on the return transport after the furnace flow and therefore must be reheated in the oven in a new run again.
  • the direct method is therefore preferably used with the use of continuous furnaces.
  • the plates used in vehicle construction should not rust as much as possible. Also, scaling should be avoided during the machining process, since such scaling for further processing, at the latest before the welding or painting process, must be removed consuming and costly.
  • Aluminum-silicon (Al-Si) coated sheets used.
  • the coating prevents the rusting of the sheets, as well as a scaling of the hot sheets on the transfer from the oven to the press.
  • the Al-Si of the coating diffuses when heating the board to hardening temperature in the steel surface and protects the base material against scaling.
  • boron-alloyed tempering steels such as 22MnB5 (material number 1 .5528) or 30MnB5 (material number 1 .5531) are being used as base material.
  • Roller hearth furnaces are based on the fact that Al-Si-coated circuit boards are placed directly on the ceramic conveyor rollers, which leads to strong thermochemical reactions between the Al-Si coating and the ceramic rollers.
  • Another major disadvantage of the described process is the cycle time, as the predominant furnace time is used to melt the Al-Si on the surface and to diffuse into the substrate surface in order to achieve the desired welding, corrosion and paint adhesion properties.
  • rollers currently in use in roller hearth furnaces are hollow rollers made of the material sintered mullite (3AI 2 0 3 * 2Si0 2 ) and full rolls
  • Fused silica consist of more than 99% S1O2 and have an application limit of about 1 100 ° C with the disadvantage that they bend at about 700 ° C to 800 ° C by its own weight. Rollers made of sintered mullite can be loaded up to 1350 ° C without causing significant bending.
  • the big advantage of both materials is the high
  • the object of the invention is to specify a method and a device in which aluminum-silicon can be diffused into a surface of a sheet-steel web and wherein from the thus-treated sheet-steel web a form hardened in the press hardening steel sheet component can be produced, wherein the disadvantages described are avoided.
  • this object is achieved by a method having the features of independent claim 1.
  • Advantageous developments of the method will become apparent from the dependent claims 2 to 8.
  • the object is further achieved by a device according to claim 9.
  • Advantageous embodiments of the device will become apparent from the Unterretenl O to 16.
  • the sheet steel web is fed to a heatable to diffusion temperature oven and then passed through the heated to diffusion temperature furnace contact. At the same time, the steel sheet is going up
  • Process step can be produced by means of press hardening process form hardened sheet steel component. For example, in a punching process, a first
  • Steel sheet board are cut from the treated soft sheet steel web, which then for the press hardening process, for example, in a conventional
  • Roller hearth furnace can be heated to martensite formation temperature, without causing a liquid phase of the Al-Si and thus one of the roles of
  • Al-Si is in both
  • the steel sheet web is taken directly from a first Stahlblechcoil.
  • the coil form corresponds to the usual delivery form of
  • the steel sheet web pretreated in the inventive method can also be further processed immediately, whereby the winding up to a second steel sheet coil can be dispensed with.
  • the steel sheet web is heated in a first furnace part to diffusion temperature. After reaching the
  • the sheet steel web cooled to a temperature at which ferrite / pearlite microstructure forms.
  • the cooling rate is less than 25K / sec.
  • the steel sheet web is guided on a hot air pad without contact through the oven.
  • the hot air can also have diffusion temperature, so that Al-Si is diffused into both surfaces of the sheet steel web.
  • the hot air cushion On the hot air cushion the floats
  • the steel sheet web is passed through the furnace by applying a tensile force.
  • the pulling force can over the
  • Take-off means for example a driven second reel, on which the
  • treated steel sheet web can be wound into a coil, in conjunction with a braked first reel, from which the untreated Al-Si-coated steel sheet web is unwound from a coil applied.
  • Steel sheet trajectory follows a rope line through the furnace, for example, between the unwinding of the first reel and the winding point on the second reel depending on the applied tensile force and the distance of the unwinding of the winding point sags.
  • the device for producing a hot air cushion can be dispensed with.
  • this cable pull method can also be combined with the hot air cushion. This is particularly advantageous if, for example, for reasons of faster passage through the furnace while maintaining constant the diffusion time and a possible final annealing and the slow cooling with a cooling rate of less than 25K / sec to a temperature at which forms ferrite / pearlite, the
  • Oven length is selected longer. With a larger furnace length, the tensile force applied to the sheet steel web must be increased. When combined with the hot air cushion, however, the tensile force can be reduced.
  • the oven is in
  • the sheet steel web is advantageously guided from top to bottom through the oven.
  • This feed-through direction has advantages in terms of temperature control, since the first furnace region with the higher diffusion temperature in this way is arranged above the second furnace region with the lower temperature at which a ferritic / pearlitic microstructure forms.
  • the inventive device for diffusing Al-Si into a surface of an Al-Si-coated sheet steel web is characterized in that the Device having a furnace, wherein the furnace has a heatable to diffusion temperature first region, wherein the Al-Si-coated steel sheet web is guided through the furnace without contact. From the so treated
  • Sheet steel web is a form hardened in the press hardening steel sheet component produced.
  • the oven has a device for
  • the hot air can also
  • Sheet steel thereby non-contact through the furnace, so that no harmful reaction of molten Al-Si to support devices, such as rollers or lifting beams take place.
  • the furnace as a device for producing a hot air cushion on a hot air nozzle.
  • the oven comprises a device for
  • Sheet steel track held under tension so that it at least does not sag so far that it touches the oven.
  • the cable can also with the
  • Hot air cushions are combined. This is particularly advantageous if the oven is too long, so that the sheet steel web would sag too much despite the applied tensile force. In this case, the tensile force can also be reduced in the combination of hot air cushion and cable, so that no or only low voltages are introduced into the sheet steel web.
  • the oven is in
  • Al-Si-coated sheet steel web can be guided without contact from top to bottom through the oven, without the need for a hot air cushion or a cable. Nevertheless, these too
  • Embodiment both with the application of a tensile force and / or a Hot air cushion can be combined, wherein the hot air cushion can also be present on both sides of the sheet steel web.
  • Furnace area can cool the steel sheet to such a temperature, the cooling rate of less than 25 K / sec process reliable
  • Soft ferrite / pearlite microstructure is formed, which makes it possible to later trim the individual blanks in the stamping process.
  • the device further comprises a
  • Feeding device for feeding the steel sheet web to the furnace and a take-off device for removing the steel sheet web from the furnace.
  • Steel sheet are applied so that they do not sag too much in a substantially horizontal furnace assembly and the tensile force does not exceed the tensile strength of a rope line.
  • the feed device has a first reel and the take-off device has a second reel.
  • a coil can be clamped as a standard delivery form of steel strip on the first reel.
  • the second reel can rewind the pre-treated sheet steel strip as a coil.
  • the second reel can also be omitted if the pretreated
  • Sheet steel strip immediately further processed, for example, fed to a punching device to be.
  • the low dew point furnace can be operated from -70 ° C to + 10 ° C, especially from about + 5 ° C to + 10 ° C.
  • Fig. 1 shows a device according to the invention in horizontal design
  • Fig. 2 shows a device according to the invention in vertical design
  • Fig. 1 shows a device according to the invention in horizontal design.
  • the device has a first reel 210 with a first Stahlblechcoil 310 located thereon.
  • the first steel sheet coil 310 consists of a
  • the furnace 100 has a first furnace area 110, which is heated to a temperature at which the Al-Si of the coating diffuses into the surface of the sheet-steel web 300. At the same time, iron diffuses from the steel sheet substrate into the Al-Si. The result is a high-melting aluminum-silicon-iron alloy at the
  • Other support or guide elements such as rollers or the like, are not required. As a result, no damaging reaction of molten Al-Si with these support and / or guide elements take place.
  • the heaters 160 are gas burners. But there are also conceivable, for example, electric infrared heaters or hot air heaters. The length of the first
  • Furnace area is dependent on the execution speed of
  • Sheet steel 300 sized so that the sheet steel web on the
  • a second furnace region 120 follows the first furnace region 1 10. The temperature control in the second furnace region 120 and length of the second furnace region 120 are dimensioned so that the steel sheet at a cooling rate of less than 25 K / sec in the temperature range of ferrite - / Perlitge Suite is cooled so that then a board can be punched out of the sheet steel web.
  • the second furnace area 120 is followed by a take-off device with a second reel 220.
  • the second reel 220 also rotates in the
  • a take-off device may further include guide rollers (not shown) adjacent to the second reel 220.
  • Fig. 2 shows a device according to the invention in vertical design.
  • the furnace 100 is designed as a tower in a substantially vertical direction.
  • the steel sheet 300 is passed from top to bottom through the furnace 100. Due to the vertical construction, no measures such as the provision of hot air cushions or cable pull devices are required in order to guide the sheet steel web without contact through the furnace 100.
  • the implementation direction from top to bottom facilitates the temperature control in the oven, since the cooler second furnace area 120 is below the heated to diffusion temperature first furnace area 1 10. Since a hot air cushion 165 is not needed, are to homogeneous
  • Feed and discharge device for the sheet steel strip 300 are constructed analogously to the horizontal embodiment.
  • the embodiments shown herein are only examples of the present invention and therefore should not be considered as limiting.
  • Alternative embodiments contemplated by one skilled in the art are

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

L'invention concerne un dispositif et un procédé de diffusion d'Al‑Si dans une surface d'une bande continue de tôle d'acier revêtue d'Al‑Si. En premier lieu, on amène la bande continue de tôle d'acier à un four qui peut être chauffé à la température de diffusion puis on la fait passer sans contact dans le four chauffé à la température de diffusion. La bande continue de tôle d'acier est ainsi chauffée à la température de diffusion et l'Al‑Si diffuse dans une surface de la bande continue de tôle d'acier. Ensuite, on refroidit la bande continue de tôle d'acier dotée d'Al‑Si diffusé dans une surface à une vitesse inférieure à environ 25 K par seconde.
EP14733592.1A 2013-06-25 2014-06-23 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier Active EP3013994B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14733592.1A EP3013994B1 (fr) 2013-06-25 2014-06-23 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13173619.1A EP2818571B1 (fr) 2013-06-25 2013-06-25 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier
EP14733592.1A EP3013994B1 (fr) 2013-06-25 2014-06-23 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier
PCT/EP2014/063150 WO2014206933A1 (fr) 2013-06-25 2014-06-23 Diffusion d'alumino-silicium dans une bande continue de tôle d'acier

Publications (2)

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EP3013994A1 true EP3013994A1 (fr) 2016-05-04
EP3013994B1 EP3013994B1 (fr) 2020-03-04

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EP13173619.1A Active EP2818571B1 (fr) 2013-06-25 2013-06-25 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier
EP14733592.1A Active EP3013994B1 (fr) 2013-06-25 2014-06-23 Incorporation par diffusion de silicium-aluminium dans une bande de tôle d'acier

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US (1) US20160145733A1 (fr)
EP (2) EP2818571B1 (fr)
JP (1) JP6583638B2 (fr)
KR (1) KR20160058746A (fr)
CN (1) CN105518177A (fr)
BR (1) BR112015032358B1 (fr)
CA (1) CA2915440A1 (fr)
MX (1) MX2015017681A (fr)
WO (1) WO2014206933A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878188B (zh) * 2015-05-20 2017-02-22 东北大学 一种可实现铝带气垫式热处理的实验装置及实验方法
KR101858863B1 (ko) 2016-12-23 2018-05-17 주식회사 포스코 내식성 및 가공성이 우수한 용융 알루미늄계 도금강재
EP3589771B9 (fr) 2017-02-28 2024-07-03 Tata Steel IJmuiden B.V. Procédé de production d'un produit en acier revêtu formé à chaud
CN109764674B (zh) * 2019-01-27 2021-01-05 安徽华淮澄膜科技有限公司 用于粉体材料烧结成型的高温隧道炉

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120733A (ja) * 1982-01-09 1983-07-18 Nippon Steel Corp 電磁鋼板の連続焼鈍方法
US5096478A (en) * 1991-03-26 1992-03-17 Glasstech, Inc. Apparatus and method for conveying glass sheets
GB9210683D0 (en) * 1992-05-19 1992-07-08 Rolls Royce Plc Multiplex aluminide-silicide coating
JPH0610063A (ja) * 1992-06-24 1994-01-18 Nippon Steel Corp 帯板熱処理炉
US5650235A (en) * 1994-02-28 1997-07-22 Sermatech International, Inc. Platinum enriched, silicon-modified corrosion resistant aluminide coating
CN1168418A (zh) * 1997-04-28 1997-12-24 张光渊 工业炉用无镍热稳定钢
DE10045479A1 (de) * 2000-09-14 2002-04-04 Schott Glas Verfahren und Vorrichtung zum kontaktlosen Lagern und Transportieren von Flachglas
JP4990449B2 (ja) * 2001-07-27 2012-08-01 新日本製鐵株式会社 高強度自動車部材用アルミめっき鋼板及びこれを使用した自動車用部材
DE10208216C1 (de) * 2002-02-26 2003-03-27 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines metallischen Bauteils
DE10303228B3 (de) * 2003-01-28 2004-04-15 Kramer, Carl, Prof. Dr.-Ing. Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf
JP4860542B2 (ja) * 2006-04-25 2012-01-25 新日本製鐵株式会社 高強度自動車部品およびその熱間プレス方法
DE102007057855B3 (de) * 2007-11-29 2008-10-30 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Formbauteils mit mindestens zwei Gefügebereichen unterschiedlicher Duktilität
JP5098864B2 (ja) * 2008-07-11 2012-12-12 新日鐵住金株式会社 塗装後耐食性に優れた高強度自動車部材およびホットプレス用めっき鋼板
KR101008042B1 (ko) * 2009-01-09 2011-01-13 주식회사 포스코 내식성이 우수한 알루미늄 도금강판, 이를 이용한 열간 프레스 성형 제품 및 그 제조방법
JP5463906B2 (ja) * 2009-12-28 2014-04-09 新日鐵住金株式会社 ホットスタンプ用鋼板及びその製造方法
US9677145B2 (en) * 2011-08-12 2017-06-13 GM Global Technology Operations LLC Pre-diffused Al—Si coatings for use in rapid induction heating of press-hardened steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014206933A1 *

Also Published As

Publication number Publication date
WO2014206933A1 (fr) 2014-12-31
EP2818571B1 (fr) 2017-02-08
CN105518177A (zh) 2016-04-20
EP2818571A1 (fr) 2014-12-31
MX2015017681A (es) 2016-06-14
EP3013994B1 (fr) 2020-03-04
JP6583638B2 (ja) 2019-10-02
CA2915440A1 (fr) 2014-12-31
KR20160058746A (ko) 2016-05-25
BR112015032358B1 (pt) 2020-09-24
US20160145733A1 (en) 2016-05-26
JP2016529386A (ja) 2016-09-23
BR112015032358A2 (pt) 2017-07-25

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