EP2650388A1 - Procédé et trajet de traitement pour l'affinement par tronçons d'un produit métallique - Google Patents

Procédé et trajet de traitement pour l'affinement par tronçons d'un produit métallique Download PDF

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Publication number
EP2650388A1
EP2650388A1 EP12005144.6A EP12005144A EP2650388A1 EP 2650388 A1 EP2650388 A1 EP 2650388A1 EP 12005144 A EP12005144 A EP 12005144A EP 2650388 A1 EP2650388 A1 EP 2650388A1
Authority
EP
European Patent Office
Prior art keywords
metal product
treatment station
station
metal
section
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.)
Withdrawn
Application number
EP12005144.6A
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German (de)
English (en)
Inventor
Thomas Dr. Niehoff
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP2650388A1 publication Critical patent/EP2650388A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • C21D1/34—Methods of heating
    • C21D1/52—Methods of heating with flames
    • 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
    • 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
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Definitions

  • the invention relates to a method and a treatment line, with which a metal product can be processed in sections.
  • the finishing includes a thermal treatment and a surface treatment.
  • thermo treatment In the heat treatment of metals (also referred to as their "thermal treatment"), certain material properties are produced by exposing the metal to certain temperatures or temperature gradients.
  • Methods of heat treatment for example, the annealing, curing or tempering, with which the structure of a metal, so the arrangement of the crystallites contained, can be selectively influenced. Properties such as hardness, toughness, cold workability or microstructural homogeneity of the metal can be brought about in a planned way.
  • oxy-fuel burners are advantageous, in particular because they consume relatively little fuel gas at high heat efficiency compared with the use of air as combustion gas, generate less exhaust gases and permit more precise work.
  • These burners work with a fuel gas and a combustion gas, which has a particularly high oxygen content of over 21%.
  • the surface may be tempered by the application of a layer, such as a zinc layer.
  • this compensation takes place after the respective metal has been thermally treated.
  • the heated metal is first cooled and then usually transported to another plant to be further treated there.
  • the production of metal products, in particular metal strips, rolls or foils, which includes both a heat treatment and a surface treatment, is therefore expensive both in terms of time and in terms of energy consumption and the required logistics.
  • the present invention therefore has the task of simplifying and accelerating the production of metal products, in particular metal strips, rolls or films.
  • a "metal product” may be any type of metal strip, a metal foil, a metal tube, a metal wire, a metal cord or other metal piece with or without a three-dimensional profile.
  • the metal may be, for example, steel, aluminum or copper or a metal alloy.
  • a first portion of a metal product is passed through a thermal treatment station.
  • This station serves to influence sections of the metal product located at it by a controlled heating with respect to material properties.
  • desired degrees of hardness, toughness, cold workability and / or structural homogeneity of the metal product in the respective section can be achieved according to the particular need.
  • the method further comprises passing the first portion of the metal product through a surface treatment station.
  • This is adapted to reimburse the surface of a portion of the metal product located thereon.
  • the surface can be coated with metal or plastic, for example. In the former case, the coating material may be the same metal as the metal product, but it may be another metal.
  • a second portion of the metal product is at a time in the surface treatment station to which the first portion is located in the thermal processing station.
  • the term "second" section does not refer to the order of treatment in the refining process. Rather, the second section can pass through the thermal treatment station before or after the first section.
  • the refining thus takes place in that the respective sections of the metal product pass through the two mentioned stations in succession without interrupting the processing process.
  • the associated processing steps are integrated into a single process insofar as the metal product as a whole is not first processed in one way and then in the other, but successively both heat treated and surface-finished in sections.
  • the method can be carried out in a single chamber.
  • the first section may be passed through the surface treatment station before or after the first section is passed through the thermal treatment station.
  • thermal energy introduced in the first passed station may continue to be utilized at the following station when the first section (and with it further further sections of the metal product following in the finishing process) is continued while still hot or at least warm. Thus, energy can be saved.
  • each section can be processed immediately after passing through a station, for example, not after cooling or after further sections of the metal product have been treated at the same station, also the time and the logistical effort in the refining can be reduced. Thus, the previously required for a transport cooling process between two processing steps can be omitted. If, for example, the metal product is unwound from a roll, not only does the entire metal product need a first refining step be run through and rolled up again before a second refining step can be made.
  • the controlled heating in the thermal treatment station as needed and depending on the metal to temperatures between about 100 ° C and about 1000 ° C, in particular between about 200 ° C and 500 ° C, more preferably at 250 to 300 ° C, is preferably carried out by direct flame heating (DFI).
  • DFI direct flame heating
  • thermal spraying such as blowing the coating material into one or more plasma flame (s), high-speed flame (s) or laser beam (s).
  • coating material can be applied by vapor deposition. If a plastic coating is to be produced, it is advantageous if the first section of the metal product passes first through the thermal treatment station and then through the surface treatment station. Then, cold plastic material, for example in the form of chips, powder or granules, may be applied (e.g., inflated) to the surface of the first section still heated by the thermal treatment.
  • the coating material is applied laterally, ie, for example, in the horizontal direction. Excess powder or similar then just drops off.
  • the metal product is a metal strip or a metal foil
  • the coating can be applied laterally with a vertical guidance of the surface to be coated of the metal product through the thermal treatment station and the surface treatment station. This also has the advantage that even dust from the metal product falls down. If the tape or the film is unwound from a roll, in this case the axis of rotation of the roll is therefore preferably vertical.
  • a section is led through at least one further thermal treatment station and / or at least one further surface treatment station.
  • the section thereby passes through the respective further station, while at the same time another section passes through another station.
  • time and energy can be saved when various kinds of heat treatment, such as quenching and tempering, are successively performed on one section when simultaneously treating another section at another station.
  • a portion of the metal product can be cooled. At the same time, this cooling is preferably carried out at the same time that another section of the metal product is passed through the thermal treatment station or through the surface treatment station.
  • the method may include a step of separating a portion of the metal product, optionally followed by packaging the severed portion. In this way, the metal product can be heat treated and surface-treated in sections, optionally cooled, separated and packaged. It only needs to be refined as much of the metal product, as is currently required, for example, for a packaging unit of a predetermined number of separated sections.
  • the metal product is a metal strip, a metal roll or a metal foil, which is led directly from the rolling process or from a roll for refining on a treatment line.
  • the method may include a step of changing the arrangement of the stations.
  • a portion of the metal product may be refined to obtain the first desired properties, then, for example, the order of the thermal treatment station and the surface treatment station interchanged and then refining another portion of the metal product to achieve second desired properties.
  • the invention further relates to a treatment line for carrying out one or more of the methods described above.
  • the respective treatment stations are set in modules. With the modules so the treatment order can be relatively easily replaced according to the desired product properties.
  • finishing a metal strip 1 is unwound from a roll 9 and a treatment section 10 along.
  • the order of the stations shown is exemplary.
  • the treatment path can be set up so that the arrangement is variable, so that the respective stations, in particular the thermal treatment station and the surface treatment station, can be interchanged.
  • each section of the metal strip 1 after its unwinding from the roller 9, first passes through a thermal treatment station 2.
  • This station comprises a device 6 for direct flame heating. As stated above, this may in particular be an oxyfuel heating. Subsequently, each section is passed through a surface treatment station 3, which has a device 7 for thermal spraying.
  • a portion of the metal strip passes through a cooling station 4 and a station 5, at which the corresponding portion (in the illustrated case section 13) is separated from the metal strip.
  • the separated section is packed in a box at a packing station 16 and can finally be removed.
  • the thermal treatment station 2 and the surface treatment station 3 are arranged so that a portion 12 is at a time in the surface treatment station 3, while a portion 11 of the same metal strip 1 is in the thermal treatment station 2.
  • the section 12 has been carried out first by the thermal treatment station 2, before its surface in the in the FIG. 1 shown moment at the surface treatment station 3 is refined. In this way, the still existing from the passage of the thermal treatment station 2 heat at the surface treatment station 3 can be exploited.
  • the metal strip 1 is unwound from the roll 9.
  • the roller is arranged so that its axis A is vertically aligned.
  • the treated surface of the metal strip 1 thereby also extends vertically.
  • the coating material is applied to the surface treatment station 3 in the horizontal direction. As stated above, this arrangement has the advantage that excess coating material as well as any dust from the metal strip 1 drops.
  • the FIG. 2 shows a typical apparatus 7 for thermal spraying, which can be used at a surface treatment station.
  • the metal strip 1 is transported in the direction of the arrow, the section 12 is treated at the time shown by thermal spraying.
  • a flame 21 is directed to the section, which distributes the material flow evenly.
  • the flame is created by the combustion of laterally supplied oxygen and methane.
  • particles 23 supplied during combustion are melted onto the metal product 1.
  • the layer 22 is formed.
  • the particles can be supplied, for example, in the form of zinc powder or granules. Depending on the positioning of the spray burner shown, the particles can be spun in a horizontal or vertical direction.
  • FIG. 3 an exemplary arrangement in a treatment section 10 for refining a metal product 1 is shown.
  • the metal product is unwound from a roll 9 and treated on both sides at the different treatment stations.
  • the treatment section shown here comprises two thermal treatment stations and two surface treatment stations.
  • each section of the metal product After being unwound from the roll 9, each section of the metal product first passes through the thermal treatment station 2A, then the surface treatment station 3A, then the thermal treatment station 2B and finally the surface treatment station 3B.
  • FIGS. 4 and 5 each schematically show a treatment section 10 through which a unwound from a roll 9 metal product 1 is guided.
  • Both treatment lines each comprise a thermal treatment station 2, a surface treatment station 3, a cooling station 4 and stations 5 and 16 for cutting or packaging.
  • the individual stations are constructed here as modules.
  • the cooling at the station 4 can be achieved in each case by conduction, spraying or use of a heat sink.
  • the two treatment routes 10 of the FIGS. 4 and 5 differ in the order of the modules: According to the treatment course of the FIG. 4 A section of the metal product 1 passes first through a thermal treatment station 2 and then through a surface treatment station 3, whereas a section of the metal product 1 according to the treatment line passes through the FIG. 5 first passes through a surface treatment station and thereafter a thermal treatment station. Which arrangement is suitable in each case depends on the desired material properties to be achieved.
  • the respective treatment stations are set in modules whose order can be easily reversed. Also material from a single roll 9 can be a first Part of the treatment course of the FIG. 4 and a second part of the treatment section of the FIG. 5 go through, with in between the module order has been changed.
  • the partial treatment of the material of the roll allows the refinement of smaller amounts of the metal product according to the respective finishing requirements, because not the material of the entire roll must be treated in each case.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating By Spraying Or Casting (AREA)
EP12005144.6A 2012-04-12 2012-07-12 Procédé et trajet de traitement pour l'affinement par tronçons d'un produit métallique Withdrawn EP2650388A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210007292 DE102012007292A1 (de) 2012-04-12 2012-04-12 Verfahren und Behandlungsstrecke zum abschnittsweise Veredeln eines Metallprodukts

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EP2650388A1 true EP2650388A1 (fr) 2013-10-16

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EP12005144.6A Withdrawn EP2650388A1 (fr) 2012-04-12 2012-07-12 Procédé et trajet de traitement pour l'affinement par tronçons d'un produit métallique

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EP (1) EP2650388A1 (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111321360A (zh) * 2020-03-17 2020-06-23 北京工业大学 一种高抗下垂性能的复合翅片铝箔及其成品退火工艺

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037074A (en) * 1974-04-22 1977-07-19 Felix Montbrun Apparatus for the continuous application of a metallic coating to a metal strip
EP0172030A2 (fr) * 1984-08-15 1986-02-19 National Research Development Corporation Application d'un revêtement par pulvérisation de métal liquide
EP0463578A1 (fr) * 1990-06-21 1992-01-02 Nippon Steel Corporation Procédé pour la production de bandes métalliques plaquées par pulvérisation
GB2313382A (en) * 1996-05-23 1997-11-26 Vidal Henri Brevets Metal coating
EP1008659A1 (fr) * 1998-12-11 2000-06-14 Aktiengesellschaft der Dillinger Hüttenwerke Procédé pour la fabrication d'une tôle d'acier maraging
CN1334357A (zh) * 2000-07-19 2002-02-06 中国科学院金属研究所 一种钢背双金属带材的制造方法
DE10258531B3 (de) * 2002-12-14 2004-04-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Herstellung korrosionsschutzbeschichteter Stähle
EP1826290A1 (fr) * 2004-11-18 2007-08-29 Daiwa Steel Tube Industries Co., Ltd. Procédé de fabrication de tube d acier plaqué de métal par aspersion thermique
AT505289A4 (de) * 2007-07-18 2008-12-15 Ebner Instrieofenbau Ges M B H Verfahren zur wärmebehandlung eines metallbandes
EP2267171A1 (fr) 2009-06-23 2010-12-29 Linde AG Recuit d'une bande métallique laminée à froid

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037074A (en) * 1974-04-22 1977-07-19 Felix Montbrun Apparatus for the continuous application of a metallic coating to a metal strip
EP0172030A2 (fr) * 1984-08-15 1986-02-19 National Research Development Corporation Application d'un revêtement par pulvérisation de métal liquide
EP0463578A1 (fr) * 1990-06-21 1992-01-02 Nippon Steel Corporation Procédé pour la production de bandes métalliques plaquées par pulvérisation
GB2313382A (en) * 1996-05-23 1997-11-26 Vidal Henri Brevets Metal coating
EP1008659A1 (fr) * 1998-12-11 2000-06-14 Aktiengesellschaft der Dillinger Hüttenwerke Procédé pour la fabrication d'une tôle d'acier maraging
CN1334357A (zh) * 2000-07-19 2002-02-06 中国科学院金属研究所 一种钢背双金属带材的制造方法
DE10258531B3 (de) * 2002-12-14 2004-04-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Herstellung korrosionsschutzbeschichteter Stähle
EP1826290A1 (fr) * 2004-11-18 2007-08-29 Daiwa Steel Tube Industries Co., Ltd. Procédé de fabrication de tube d acier plaqué de métal par aspersion thermique
AT505289A4 (de) * 2007-07-18 2008-12-15 Ebner Instrieofenbau Ges M B H Verfahren zur wärmebehandlung eines metallbandes
EP2267171A1 (fr) 2009-06-23 2010-12-29 Linde AG Recuit d'une bande métallique laminée à froid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111321360A (zh) * 2020-03-17 2020-06-23 北京工业大学 一种高抗下垂性能的复合翅片铝箔及其成品退火工艺

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