EP2188399B1 - Gesteuertes verfahren und vorrichtung zur oxidation/oberflächenreduktion eines kontinuierlich durch einen strahlungsrohr-galvanisierungsofen laufenden stahlstreifens - Google Patents

Gesteuertes verfahren und vorrichtung zur oxidation/oberflächenreduktion eines kontinuierlich durch einen strahlungsrohr-galvanisierungsofen laufenden stahlstreifens Download PDF

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Publication number
EP2188399B1
EP2188399B1 EP08829848.4A EP08829848A EP2188399B1 EP 2188399 B1 EP2188399 B1 EP 2188399B1 EP 08829848 A EP08829848 A EP 08829848A EP 2188399 B1 EP2188399 B1 EP 2188399B1
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Prior art keywords
shaped
tube
medium
oxidation
oxidising
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English (en)
French (fr)
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EP2188399A1 (de
EP2188399B2 (de
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Pierre-Jérôme BORREL
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Primetals Technologies USA LLC
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Siemens VAI Metals Technologies SAS
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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
    • 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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D9/0006—Details, accessories not peculiar to any of the following 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
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
    • C23C2/29—Cooling or quenching
    • 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
    • F27B9/068—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 radiant tubes, the tube being heated by a hot medium, e.g. hot gases
    • 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

Definitions

  • the invention relates to the continuous galvanizing of steel strips including AHSS high levels of silicon, manganese, aluminum and, in particular, facilities comprising a radiant tube furnace without direct flame heating zone.
  • the patent JP 02-285057 describes an oxidation phase between 400 and 700 ° C in a slightly oxidizing atmosphere and then a reduction phase between 600 and 800 ° C in a reducing atmosphere, it indicates ranges of temperature and the composition of the gases (contents of O 2 , N 2 and H 2 ).
  • the patent EP 1 285 972 describes the same principle. These two patents, however, remain very general and do not clearly reveal the practical means of controlling reactions.
  • the patent EP 1 457 580 describes an installation for performing the oxidation phase in a specific chamber where the strip is heated by induction or combustion of a gas, in an oxidizing atmosphere, between 100 and 400 ° C.
  • the patent US 3,936,543 describes an annealing furnace duct not aimed at the specific coating of AHSS steels but making it possible to avoid the use of cleaning flux during galvanization by the oxidation followed by the superficial reduction of carbon steel strips.
  • the oven Annealing prior to the galvanizing bath is a conventional furnace having a direct flame heating zone (FDF) and a radiant tube temperature holding zone (RTF).
  • FDF direct flame heating zone
  • RTF radiant tube temperature holding zone
  • the surface oxidation is obtained in the DFF zone by controlling the combustion under super-stoichiometric conditions so that the flue gases have a controlled excess of oxygen.
  • the reduction is obtained in the RTF zone which comprises at least 5% hydrogen, the remainder being nitrogen.
  • the principle laid down by this patent can be implemented for the controlled oxidation / reduction of AHSS steels. It has the advantage of not requiring any additional oxidation installations and of using the mixed galvanization furnaces DFF / RTF without major modifications.
  • the patent WO 2005/017214 proposes two possibilities to solve the problem. The first is to use a direct flame combustion chamber separate from the RTF annealing furnace from which the flue gas has been collected for injection into the furnace. The second is to install a direct flame burner in an area of the oven enclosure. In both cases, the flue gases provide the necessary oxidizing atmosphere under conditions of composition obviously dependent on the temperature of the strip and that of the gases. The reduction is then conventionally obtained by passing through a mixture of nitrogen and hydrogen.
  • the invention consists in injecting an oxidizing medium into a section of a radiant tube furnace, particularly in a nitrogen / hydrogen atmosphere, using one or more tubes, in particular specially modified and capable of being installed in place of any of the existing tubes.
  • this injection can be carried out in any section of the furnace, preferably in the preheating section.
  • the medium must have, depending on the temperature of the band and the chemical composition of the latter, a dew point such that the alloying elements such as silicon, manganese, aluminum, chromium are deeply oxidized. and no longer have the ability to migrate to the surface. As a general rule, this dew point is above -20 ° C.
  • the injected medium may be water vapor or air or a mixture rich in oxygen. It can also be the product resulting from the combustion of an over-stoichiometric mixture of air or oxygen-rich air or oxygen / fuel in a burner.
  • the control of this selective oxidation preferably makes use of the measurement of the dew point in the zone (s) of installation of the (or) tube (s) modified (s).
  • This measurement can be carried out by dew point transmitters installed in a fixed position and operating in a closed loop with the medium flow control members. oxidant injected by the injectors of oxidizing medium and / or, adjustment of the burners.
  • the invention also relates to a device according to claim 5 ensuring the organization, in a preheating section and / or a maintenance section of a continuous galvanizing annealing furnace of steel strips equipped only with radiant tubes.
  • at least one oxidation zone for preventing the selective oxidation of the alloying elements of the steel, by injecting an oxidizing medium in the oxidation zone characterized in that it comprises at least a tube comprising at least one branch provided with calibrated holes allowing the oxidizing medium to pass through the oxidation zone.
  • the means for introducing the oxidizing medium may be either an injector ensuring the supply of the tube in a hot oxidizing medium such as water vapor, air or a gas rich in oxygen, or a burner feeding the tube into a product resulting from the combustion of an over-stoichiometric air / fuel mixture, a stoichiometric air / oxygen / fuel mixture or a stoichiometric air / oxygen fuel mixture within the non-explosive limit.
  • a hot oxidizing medium such as water vapor, air or a gas rich in oxygen
  • the modified tube (s) intended to provide the oxidizing medium necessary for the oxidation of the strip is (are), for example, a U-shaped tube whose inlet branch is equipped at its end with a device for injecting steam or air preheated or not, oxygenated or not oxygen or oxygen and whose branch opposite the inlet branch is closed at its end, at least one of the branches preferably the opposite branch to the input branch, is pierced with calibrated holes allowing said medium to pass.
  • the U-tube can be replaced by any conventional tube shape such as, for example, a P-shape, a double-P shape, a W shape or a thermowell shape.
  • the radiant tube intended to supply the oxidizing medium is a P-tube having an inlet branch equipped at its end with a burner and at least one of the branches, preferably the opposite branch.
  • the input branch is pierced with calibrated holes allowing flue gases to pass through the furnace enclosure.
  • the branch opposite to the input branch comprising the burner may allow some of the flue gases to escape outside the furnace through a calibrated orifice or comprise a heat exchanger device for preheating the air of combustion with flue gases.
  • the P-tube can be replaced by any conventional tube shape such as, for example, a U-shape, a W-shape, a P-shape or a thermowell.
  • the burner (s) are supplied with an over-stoichiometric air / fuel mixture or with a stoichiometric mixture of oxygen-enriched air / fuel or with a stoichiometric mixture of oxygenated air / fuel within the non-explosive limits.
  • the tubes equipped with burner or injector, whatever their type, are directly interchangeable with existing ones. They can be installed on demand depending on the temperature chosen for the oxidation or be installed permanently at different points of the oven. In this case, they are activated according to the choice of the temperature at which it is desired to oxidize the strip, therefore the position of the tube in the oven.
  • Another advantage of the method is to locate the injection of oxidizing medium exactly where it is needed, that is to say very close to the two faces of the steel strip and to be able to take advantage of the local effect of turbulence in contact with the band which favors the reactions between the medium and the band.
  • the figure 2 describes the arrangement of the different sections of a radiant tube annealing furnace and, superimposed, the evolution of the temperature of the band B as it travels through the furnace (curve T).
  • Said strip B enters the furnace 6 by a preheating section 61 followed by a temperature holding section 62, a cooling section 63 with slow cooling means 631 and fasting 632, an aging section 64 and a heating section 65 required for immersion in the zinc bath 7.
  • the heating in particular in the preheating sections 61 and holding 62 of the furnace 6 is obtained by means of radiant tubes.
  • a P-shaped radiant tube 2 is installed in the enclosure 1 of a galvanic annealing furnace, for example a preheating or holding section. It is assembled by a support 5 and a plate 4.
  • a burner 3 fueled and combustion air is disposed at the end of the inlet branch 2a of the tube 2 and delivers in the tube of the flue gas at high temperature.
  • burnt gases are essentially diffused in the chamber 1 by means of calibrated holes 6 formed in the branch 2b of the tube, opposite to the inlet branch 2a.
  • This branch 2b is closed at its end so that partly the burnt gases recirculate in the tube.
  • the branch 2b of the tube 2 in P opposite the burner 3 is equipped with a calibrated or adjustable device 7 to evacuate to the outside of the furnace part of the burnt gases.
  • the branch 2b of the P-tube opposite the burner 3 is equipped with a heating device 8, 9 of the combustion air by the flue gases.
  • the radiant tube may be of the double P type as shown in FIG. figure 6 .
  • the burner 3 is disposed in the open end of the central input branch 2a of the tube 2.
  • the holes 6 are then preferably formed in each of the opposite branches 2b located on either side of the central branch 2a.
  • a U-tube 2 is installed in the enclosure 1 of a galvanizing annealing furnace. It is assembled by a support 5 and a plate 4.
  • An injector 10 supplied with oxidizing gas under pressure such as water vapor, air or a mixture rich in oxygen delivers in the tube 2 a mixture of oxidizing gases. and mixing HNx at high temperature present in the oven enclosure.
  • This mixture is diffused in the chamber 1 by means of calibrated holes 6 formed in the branch 2b opposite to the input branch 2a.
  • the end of the branch 2b opposite to the input branch 2a comprising the injector is closed by a plug 11.
  • the radiant tube 2 may be of the double-P type similar to that described in FIG. figure 6 , the burner being replaced by an injector 10.
  • the injectors are static devices that do not require any other energy than that of the fluid, which are moreover always available in the metallurgical sites, the water vapor at pressures of 8 to 10 bars.
  • the relaxation energy in the furnace enclosure leads to an effect of brewing and circulation that avoids the use of fans. The energy cost of the process is therefore very limited.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (10)

  1. Verfahren, welches in einem Glühofen zur kontinuierlichen Verzinkung von Stahlbändern, der eine Vorwärmzone und eine Haltezone umfasst und mit Strahlrohren ohne Zone mit direkter Flamme ausgestattet ist, die Oxidation des Bandes gewährleistet, mit dem Ziel, die selektive Oxidation der Legierungselemente des Stahls zu verhindern, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    Montage, an mindestens einer Stelle der Vorwärmzone des Ofens und/oder an mindestens einer Stelle der Haltezone des Ofens,
    mindestens eines modifizierten Rohres, das in der Lage ist,
    ein oxidierendes Medium einzuspritzen; und
    Einspritzung des oxidierenden Mediums über das (oder die) modifizierte(n) Rohr(e); dadurch, dass es mindestens ein Rohr umfasst, das mindestens einen Schenkel aufweist, der mit kalibrierten Löchern versehen ist, die das oxidierende Medium in die Oxidationszone durchströmen lassen, und das mindestens ein existierendes Heizstrahlrohr ersetzt;
    wobei das oxidierende Medium eine solche Zusammensetzung aufweist, dass es, unter den Temperaturbedingungen des oxidierenden Mediums und des Stahlbandes und in Abhängigkeit von der chemischen Zusammensetzung des Bandes, einen Taupunkt besitzt, der die Tiefenoxidation der Legierungselemente, wie Silizium, Mangan, Aluminium, Chrom, des Stahlbandes gewährleistet; dadurch, dass die Zusammensetzung des Mediums so beschaffen ist, dass, unter den Temperaturbedingungen des Mediums und des Bandes und in Abhängigkeit von der chemischen Zusammensetzung des Bandes, der Taupunkt des Mediums höher als -20 °C ist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das oxidierende Medium Wasserdampf, Luft oder ein an Sauerstoff reiches Gas ist, das mittels eines Injektors eingespritzt wird.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das eingespritzte Medium aus der Verbrennung, mittels eines Brenners, eines überstöchiometrischen Luft-BrennstoffGemisches, eines stöchiometrischen Gemisches von mit Sauerstoff angereicherter Luft und Brennstoff oder eines stöchiometrischen Gemisches von Luft und mit Sauerstoff angereichertem Brennstoff innerhalb der Grenzen der Nichtexplosivität resultiert.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass es einen Schritt des Messung des Taupunktes des oxidierende Mediums in den Zonen des Ofens, wo die modifizierten Rohre eingebaut sind, und einen Schritt der Regelung der Durchflussmenge des oxidierenden Mediums in diesen Rohren im geschlossenen Regelkreis mit der Taupunktmessung umfasst.
  5. Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, welche die Organisation, in einer Vorwärmzone und/oder einer Haltezone eines Glühofens zur kontinuierlichen Verzinkung von Stahlbändern, der mit Strahlrohren ohne Zone mit direkter Flamme ausgestattet ist, mindestens einer Oxidationszone gewährleistet, mit dem Ziel, die selektive Oxidation der Legierungselemente des Stahls durch Einspritzung eines oxidierenden Mediums in die Oxidationszone zu verhindern, dadurch gekennzeichnet, dass sie mindestens ein Rohr umfasst, das mindestens einen Schenkel aufweist, der mit kalibrierten Löchern versehen ist, die das oxidierende Medium in die Oxidationszone durchströmen lassen, und das mindestens ein existierendes Heizstrahlrohr ersetzt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Rohr ein U-Rohr oder W-Rohr oder P-Rohr oder Doppel-P-Rohr oder handschuhfingerförmiges Rohr ist, das einen Eintrittsschenkel, der mit einem Brenner versehen ist, dessen Verbrennungsgase das oxidierende Medium bilden, und einen dem mit dem Brenner versehenen Eintrittsschenkel gegenüberliegenden Schenkel aufweist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der gegenüberliegende Schenkel des U-Rohres oder W-Rohres oder P-Rohres oder Doppel-P-Rohres an seinem Ende verschlossen ist.
  8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der gegenüberliegende Schenkel des U-Rohres oder W-Rohres oder P-Rohres oder Doppel-P-Rohres an seinem Ende eine kalibrierte Blende aufweist, um einen Teil der Verbrennungsgase abzulassen.
  9. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der gegenüberliegende Schenkel des U-Rohres oder W-Rohres oder P-Rohres oder Doppel-P-Rohres eine Wärmetauschervorrichtung aufweist, um ein Gas zur Speisung des Brenners mithilfe der Verbrennungsgase vorzuwärmen.
  10. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Rohr ein U-Rohr oder W-Rohr oder P-Rohr oder Doppel-P-Rohr oder handschuhfingerförmiges Rohr ist, das einen Eintrittsschenkel, der mit einem Injektor versehen ist, der dazu bestimmt ist, das oxidierende Medium einzuführen, und einen dem den Injektor aufweisenden Eintrittsschenkel gegenüberliegenden Schenkel, dessen Ende verschlossen ist, aufweist.
EP08829848.4A 2007-09-03 2008-07-04 Gesteuertes verfahren und vorrichtung zur oxidation/oberflächenreduktion eines kontinuierlich durch einen strahlungsrohr-galvanisierungsofen laufenden stahlstreifens Active EP2188399B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0757331A FR2920439B1 (fr) 2007-09-03 2007-09-03 Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation
PCT/FR2008/000981 WO2009030823A1 (fr) 2007-09-03 2008-07-04 Procede et dispositif d'oxydation/reduction controlee de la surface d'une bande d'acier en defilement continu dans un four a tubes radiants en vue de sa galvanisation

Publications (3)

Publication Number Publication Date
EP2188399A1 EP2188399A1 (de) 2010-05-26
EP2188399B1 true EP2188399B1 (de) 2013-08-28
EP2188399B2 EP2188399B2 (de) 2023-05-03

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EP08829848.4A Active EP2188399B2 (de) 2007-09-03 2008-07-04 Gesteuertes verfahren und vorrichtung zur oxidation/oberflächenreduktion eines kontinuierlich durch einen strahlungsrohr-galvanisierungsofen laufenden stahlstreifens

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US (1) US8609192B2 (de)
EP (1) EP2188399B2 (de)
JP (1) JP2010538163A (de)
CN (1) CN101796203B (de)
FR (1) FR2920439B1 (de)
WO (1) WO2009030823A1 (de)

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AT508264B1 (de) * 2009-10-13 2010-12-15 Ebner Ind Ofenbau Vorrichtung zur wärmebehandlung von blechbändern
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EP2458022B2 (de) * 2010-11-30 2024-01-17 Tata Steel UK Limited Verfahren zum Verzinken eines Stahlstreifens in einer kontinuierlichen Feuerverzinkungsanlage
DE102011050243A1 (de) 2011-05-10 2012-11-15 Thyssenkrupp Steel Europe Ag Vorrichtung und Verfahren zum im Durchlauf erfolgenden Behandeln eines Stahlflachprodukts
DE102011051731B4 (de) 2011-07-11 2013-01-24 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung eines durch Schmelztauchbeschichten mit einer metallischen Schutzschicht versehenen Stahlflachprodukts
WO2013010968A1 (en) * 2011-07-15 2013-01-24 Tata Steel Ijmuiden Bv Apparatus for producing annealed steels and process for producing said steels
DE102011056823A1 (de) 2011-12-21 2013-06-27 Thyssen Krupp Steel Europe AG Düseneinrichtung für einen Ofen zum Wärmebehandeln eines Stahlflachprodukts und mit einer solchen Düseneinrichtung ausgestatteter Ofen
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WO2009030823A1 (fr) 2009-03-12
US20100173072A1 (en) 2010-07-08
EP2188399A1 (de) 2010-05-26
EP2188399B2 (de) 2023-05-03
CN101796203A (zh) 2010-08-04
CN101796203B (zh) 2011-12-14
US8609192B2 (en) 2013-12-17
FR2920439B1 (fr) 2009-11-13
JP2010538163A (ja) 2010-12-09

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