EP3411510B1 - Feuerverzinkungsanlage sowie feuerverzinkungsverfahren - Google Patents

Feuerverzinkungsanlage sowie feuerverzinkungsverfahren Download PDF

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EP3411510B1
EP3411510B1 EP17702005.4A EP17702005A EP3411510B1 EP 3411510 B1 EP3411510 B1 EP 3411510B1 EP 17702005 A EP17702005 A EP 17702005A EP 3411510 B1 EP3411510 B1 EP 3411510B1
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Prior art keywords
component
components
flux
hot
zinc
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German (de)
English (en)
French (fr)
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EP3411510A1 (de
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Thomas PINGER
Lars Baumgürtel
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Fontaine Holdings NV
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Fontaine Holdings NV
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Priority to SI201730282T priority Critical patent/SI3411510T1/sl
Priority to PL17702005T priority patent/PL3411510T3/pl
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    • 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
    • C23C2/003—Apparatus
    • C23C2/0032—Apparatus specially adapted for batch coating of substrate
    • C23C2/00322—Details of mechanisms for immersing or removing substrate from molten liquid bath, e.g. basket or lifting mechanism
    • 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
    • C23C2/003—Apparatus
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • 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
    • C23C2/02—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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • 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
    • 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
    • C23C2/30—Fluxes or coverings on molten baths
    • 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
    • C23C2/50—Controlling or regulating the coating processes

Definitions

  • the present invention relates to the technical field of galvanizing iron-based or iron-containing components, in particular steel-based or steel-containing components (steel components), preferably for the automotive or motor vehicle industry, by means of hot-dip galvanizing (hot-dip galvanizing).
  • the present invention relates to a system and a method for hot-dip galvanizing (hot-dip galvanizing) of components (ie of iron-based or iron-containing components, in particular steel-based or steel-containing components (steel components)), for large-scale hot-dip galvanizing of a large number of identical or similar components (e.g. Motor vehicle components) according to claims 1 and 10.
  • the present invention relates to the use of the system according to the invention or the method according to the invention for hot-dip galvanizing (hot-dip galvanizing) of components (ie of iron-based or iron-containing components, in particular steel-based or steel-containing components (steel components)) for large-scale hot-dip galvanizing of a large number of identical or similar components (e.g. automotive components) according to claim 15.
  • hot-dip galvanizing of components (ie of iron-based or iron-containing components, in particular steel-based or steel-containing components (steel components)) for large-scale hot-dip galvanizing of a large number of identical or similar components (e.g. automotive components) according to claim 15.
  • components made of steel for motor vehicles such as. B. cars, trucks, commercial vehicles, etc., require efficient corrosion protection that can withstand long-term loads.
  • galvanizing it is known to protect steel-based components against corrosion by means of galvanizing (galvanizing).
  • galvanizing the steel is provided with a generally thin layer of zinc to protect the steel from corrosion.
  • Various galvanizing processes can be used to galvanize steel components, i.e. to coat them with a metallic zinc coating, in particular hot-dip galvanizing (also known as hot-dip galvanizing), spray galvanizing (flame spraying with zinc wire), diffusion galvanizing (Sherard galvanizing) ), galvanizing (electrolytic galvanizing), non-electrolytic galvanizing by means of zinc flake coatings and mechanical galvanizing.
  • hot-dip galvanizing also known as hot-dip galvanizing
  • spray galvanizing flame spraying with zinc wire
  • diffusion galvanizing Sherard galvanizing
  • galvanizing electrolytic galvanizing
  • non-electrolytic galvanizing by means of zinc flake coatings and mechanical galvanizing.
  • hot-dip galvanizing The most important method for protecting steel from corrosion by means of metallic zinc coatings is hot-dip galvanizing (hot-dip galvanizing).
  • Steel is immersed continuously (e.g. strip and wire) or piece by piece (e.g. components) at temperatures of around 450 ° C to 600 ° C in a heated boiler with liquid zinc (melting point of zinc: 419.5 ° C), so that a resistant alloy layer of iron and zinc is formed on the steel surface and above that a very firmly adhering pure zinc layer.
  • strip-galvanized steel is a preliminary or intermediate product (semi-finished product), which is further processed after galvanizing, in particular by forming, punching, cutting, etc., whereas components to be protected by piece galvanizing are first completely manufactured and only then hot-dip galvanized (which means that the components all around protected against corrosion).
  • Bulk galvanizing and strip galvanizing also differ in terms of the zinc layer thickness, which results in different protection periods.
  • the zinc layer thickness of galvanized sheet metal is usually at most 20 to 25 micrometers, whereas the zinc layer thickness of galvanized steel parts is usually in the range of 50 to 200 micrometers and even more.
  • Hot-dip galvanizing provides both active and passive corrosion protection. Passive protection is provided by the barrier effect of the zinc coating. Active corrosion protection arises due to the cathodic effect of the zinc coating. Compared to nobler metals of the electrochemical series, such as. As iron, zinc serves as a sacrificial anode, which protects the iron underneath from corrosion until it is completely corroded.
  • the typical procedure for conventional piece galvanizing using hot-dip galvanizing is usually as follows.
  • the galvanizing of identical or similar components e.g. series production of motor vehicle components
  • a common product carrier or, for example, a crossbar or frame a common holding or fastening device for a large number of these identical or similar components.
  • a plurality of components on the goods carrier via holding means, such as. B. attached sling, connecting wires or the like.
  • the components are then fed into the subsequent treatment steps or stages in the grouped state via the product carrier.
  • the component surfaces of the grouped components are subjected to degreasing in order to remove residues of fats and oils, usually using aqueous alkaline or acidic degreasing agents as degreasing agents.
  • aqueous alkaline or acidic degreasing agents as degreasing agents.
  • rinsing process typically by immersion in a water bath, in order to prevent the degreasing agents from being carried over with the galvanized material in the subsequent process step of pickling, in particular when changing from alkaline degreasing to an acid base is of great importance.
  • pickling which in particular for removing species-specific impurities, such as. B. rust and scale, from the steel surface.
  • Pickling is usually done in dilute hydrochloric acid, whereby the duration of the pickling process depends, among other things, on the state of contamination (e.g. degree of rusting) of the galvanized material and the acid concentration and temperature of the pickling bath.
  • a rinsing process to avoid or minimize Carryover of acid and / or salt residues with the galvanized material usually takes place after the pickling treatment, a rinsing process (rinsing step).
  • fluxing the previously degreased and pickled steel surface using a so-called flux
  • a so-called flux which is typically an aqueous solution of inorganic chlorides, most often with a mixture of zinc chloride (ZnCl 2 ) and ammonium chloride (NH 4 Cl)
  • the flux increases the wettability between the steel surface and the molten zinc.
  • drying is usually carried out in order to produce a solid flux film on the steel surface and to remove adhering water, so that undesired reactions (in particular the formation of water vapor) in the liquid zinc dip bath are subsequently avoided.
  • the components pretreated in the aforementioned manner are then hot-dip galvanized by immersion in the molten zinc.
  • the zinc content of the melt according to DIN EN ISO 1461 is at least 98.0% by weight.
  • the galvanized material After immersing the galvanized material in the molten zinc, it remains in the molten zinc bath for a sufficient period of time, in particular until the galvanized material has reached its temperature and is coated with a zinc layer.
  • the surface of the zinc melt is cleaned, in particular, of oxides, zinc ash, flux residues and the like before the galvanized material is then pulled out of the zinc melt again.
  • the hot-dip galvanized component is then subjected to a cooling process (e.g. in air or in a water bath).
  • the holding means for the component such as. B. sling, connecting wires or the like.
  • the galvanizing process is usually followed by a sometimes complex post-processing or post-treatment. Excess zinc residues, in particular so-called drip noses of the zinc solidifying at the edges, and oxide or ash residues adhering to the component are removed as far as possible.
  • a criterion for the quality of hot-dip galvanizing is the thickness of the zinc coating in ⁇ m (micrometers).
  • the DIN EN ISO 1461 standard specifies the minimum values for the required coating thicknesses, which are to be supplied depending on the material thickness for piece galvanizing. In practice, the layer thicknesses are significantly higher than the minimum layer thicknesses specified in DIN EN ISO 1461.
  • zinc coatings made by bar galvanizing have a thickness in the range of 50 to 200 micrometers and even more.
  • the zinc melt or the liquid zinc bath add aluminum.
  • a zinc-aluminum alloy with a lower melting temperature compared to pure zinc is produced.
  • Zn-Al melt zinc-aluminum melt
  • Zn-Al bath liquid zinc-aluminum bath
  • the formation of the brittle iron-tin alloy layer does not take place, since the aluminum - without being based on a specific theory - initially forms a barrier layer on the steel surface of the component in question, onto which the actual zinc layer is then deposited.
  • a zinc-aluminum melt hot-dip galvanized components can therefore be easily formed, but nevertheless have improved corrosion protection properties - despite the significantly smaller layer thickness compared to conventional hot-dip galvanizing with a quasi aluminum-free zinc melt.
  • a zinc-aluminum alloy used in the hot-dip galvanizing bath has improved fluidity properties compared to pure zinc.
  • zinc coatings produced by hot-dip galvanizing using such zinc-aluminum alloys have greater corrosion resistance (which is two to six times better than that of pure zinc), improved formability and better paintability than zinc coatings formed from pure zinc. This technology can also be used to produce lead-free zinc coatings.
  • Such a hot-dip galvanizing process using a zinc-aluminum melt or using a zinc-aluminum hot-dip galvanizing bath is known, for example, from US Pat WO 2002/042512 A1 and the relevant document equivalents for this patent family (e.g. EP 1 352 100 B1 . DE 601 24 767 T2 and US 2003/0219543 A1 ).
  • Suitable fluxes for hot-dip galvanizing using zinc-aluminum hot-dip baths are also disclosed there, since flux compositions for zinc-aluminum hot-dip galvanizing baths are different from those for conventional hot-dip galvanizing with pure zinc.
  • corrosion protection coatings can be produced with very small layer thicknesses (generally significantly below 50 micrometers and typically in the range from 2 to 20 micrometers) and with very low weight with high cost efficiency, which is why the method described there is commercially available under the name microZINQ ® method is applied.
  • hot-dip galvanizing of components in zinc-aluminum melt baths there is a large number of identical or similar components in large-volume hot-dip galvanizing (e.g. large-volume hot-dip galvanizing of automotive components or in the automotive industry) due to the more difficult wettability of the steel with the zinc-aluminum melt as well
  • the small thickness of the zinc coatings or zinc coatings is a problem in subjecting the identical or similar components to identical process conditions and process sequences with an economical process sequence, in particular reliably and perform reproducible high-precision hot-dip galvanizing, which provides identical dimensional accuracy for all identical or similar components.
  • the known hot-dip galvanizing has several disadvantages.
  • the components or component areas do not necessarily linger in the zinc melt for the same length of time. This results in reaction times of different lengths between the material of the components and the zinc melt and, as a result, different zinc layer thicknesses on the components.
  • act on high-temperature sensitive components particularly high-strength and high-strength steels such as. B. for spring steels, chassis and body components and press-hardened formed parts, different residence times in the zinc melt on the mechanical characteristics of the steel.
  • compliance with defined process parameters for each individual component is inevitable.
  • the US 3639142 A relates to an elongated steel component which is passed in a continuously longitudinally oriented process through a spray washer and a blasting chamber, an acid being sprayed onto the surface of the elongated steel component first and then blown off.
  • a chloride flux is also sprayed onto the surface of the component and then blown off so that no excess flux adheres to the component surface.
  • the components are then placed in an oven for preheating and drying the flux and then immersed in a hot liquid zinc melt.
  • the US 5853806 A a fire coating process for a steel component, a molten aluminum alloy according to a one-step coating process being provided as the melt.
  • a flux is applied before immersion in the coating bath containing the melt.
  • the flux should be designed so that the oxide layer on the steel component surface is avoided.
  • the bath surface has an application or coating of a fluoride-containing flux.
  • the oxide layer on the steel component surface can also be removed, the steel component being immersed in a molten aluminum-zinc-silicon alloy or an aluminum-silicon alloy, the coating bath being provided on the top with a flux containing an iron compound on the melt.
  • the US 2940870 A a method for hot-dip galvanizing of metallic components, whereby an improved flux is to be used for application to the iron-containing component for a uniform application of zinc.
  • the method includes wetting the iron-containing component with an aqueous flux solution based on an ammonia zinc chloride-containing flux solution and drying this solution on the component surface, after the component has dried it is immersed in a molten zinc bath, a salt-containing fluoride being applied to the top of the zinc bath, which is free of ammonia.
  • the GB 830258 A a process for electroplating, the melt comprising aluminum and the components being treated with an aqueous flux solution before immersion in the galvanizing bath.
  • the flux solution either contains a dissolved aluminum compound or the components that have already been treated with a flux are immersed in an aqueous solution containing an aluminum compound and then dried before they are immersed in the molten zinc bath.
  • the flux preferably contains 25 to 30% of the zinc ammonium chloride.
  • the CN 103290348 B a zinc coating process.
  • the process includes an automatic control system and other various transport devices for the component to be galvanized.
  • the method is to be carried out in such a way that the process flow is to take place automatically on the basis of characteristic values.
  • the problem underlying the present invention therefore consists in the provision of a system or a method for the piece galvanizing of iron-based or iron-containing components, in particular steel-based or steel-containing components (steel components) by means of hot-dip galvanizing (hot-dip galvanizing) in a zinc-aluminum melt (ie in a liquid zinc-aluminum bath) for the large-scale hot-dip galvanizing of a large number of identical or similar components (e.g. motor vehicle components), the disadvantages of the prior art described above being at least largely avoided or at least mitigated.
  • such a system or such a method is to be provided, which (s) enable improved process economy and a more efficient, in particular more flexible process flow compared to conventional hot-dip galvanizing systems or methods.
  • the present invention proposes - according to a first aspect of the present invention - a hot-dip galvanizing plant according to claim 1; further, in particular special and / or advantageous, configurations of the system according to the invention are the subject of the relevant system subclaims.
  • the present invention relates - according to a second aspect of the present invention - to a method for hot-dip galvanizing according to the independent method claim; further, in particular special and / or advantageous, configurations of the method according to the invention are the subject of the relevant method subclaims.
  • the present invention relates - according to a third aspect of the present invention - to the use of the system according to the invention and / or the method according to the invention according to the independent use claim.
  • the invention therefore relates to a system for hot-dip galvanizing components for large-scale hot-dip galvanizing of a large number of identical or similar components with a conveyor device with at least one product carrier for conveying the components, a flux application device for applying a flux to the surface of the components and a hot-dip galvanizing device for hot-dip galvanizing the components with a galvanizing bath having a molten zinc-aluminum alloy, the goods carrier being designed for receiving and transporting at least one individual component, the flux application device having a spray device for automated spray application of the flux onto the surface of the individual component, wherein a control device coupled to the spray device for the automatic spray application of the flux is provided for automated control of the spray order depending on the shape and / or type and / or the material and / or the surface quality of the component, wherein the control device is designed in such a way that a homogeneous and / or individually adapted spray application results and wherein the control device for automated control of the thickness
  • the invention thus relates - according to a second aspect of the invention - to a method for hot-dip galvanizing at least one component using a molten zinc-aluminum alloy for large-scale hot-dip galvanizing of a large number of identical or similar components, the component in the separated state on a product carrier to a flux application device Flux application is transported, the component is provided in the separated state by an automated spray application of a spray device with the flux and then that on its surface with the Flux-provided component is subjected to hot-dip galvanizing in a galvanizing bath containing the molten zinc-aluminum alloy, the automated spray application being carried out homogeneously and / or individually adapted to the component; wherein the spray application is controlled automatically depending on the shape, type, material and / or surface quality of the component, the concentration of the flux and / or the spray duration of the spray application per component and / or the spray duration of the spray application of different areas of a component and / or the thickness of the spray
  • the invention thus relates - according to a third aspect of the invention - to the use of a system according to the invention and / or a method according to the invention for large-batch hot-dip galvanizing of a large number of identical or similar components, preferably piece galvanizing.
  • the flux reacts with the zinc melt. Due to the different thickness of the flux layer on the component to be galvanized, a different thickness of the zinc layer on the component can also result.
  • the different zinc layer thickness on the component thus represents, among other things, the result of the uneven layer thickness of the flux.
  • the spray application is more economical in terms of energy, since no bath has to be kept at a higher temperature. Due to the lack of a bath, energy and radiation losses are avoided. Furthermore, the concentration of the flux can be kept constant at a constant level, since in contrast to an open bath there is no loss of solvent. Since there is no bathroom with inevitably inhomogeneities, the spray application is more homogeneous. Furthermore, the quality and the layer thickness of the flux can be precisely controlled by a predetermined concentration control of the flux and a precise control of the thickness of the application. A defined amount of the flux can be applied as part of the spray application. Furthermore, the spray application makes it possible to avoid flux accumulation at corners, edges, folds or the like. Ultimately, all of this means that homogeneous galvanizing with a constant layer thickness is made possible in the galvanizing bath.
  • the spray application results in improved drainage behavior of the applied flux due to the defined amount of spray.
  • a precisely metered application of the flux during the spray application can prevent a concentrated solution of the flux from getting stuck at the aforementioned corners and edges, but in any case it can be reduced.
  • no superfluous flux is ultimately introduced into the galvanizing bath.
  • Another significant advantage of the spray application according to the invention over the dip coating is that it is easier to use different fluxes for different applications.
  • the spray technology increases individual adaptability and ensures improved flexibility.
  • the component In order to be able to guarantee a complete spray application of the component to be galvanized, the component must be accessible from all sides as part of the automation of the process. For this reason, the component in question is either attached as a single component to the goods carrier and guided through the spraying device. When the component is completely separated, with only a single component attached to the goods carrier, every area of the component is accessible and can be sprayed accordingly.
  • the goods carrier it is also possible to fasten a small group, ie up to a maximum of 10 components, preferably up to 5 components, these components being arranged, in particular, in a row next to or behind one another, in such a way that that they don't touch
  • the distance between the components of the small group attached to the carrier should preferably be at least 10 cm, preferably at least 50 cm and in particular more than 1 m from one another.
  • a control device coupled to the spray device for the automated spray application of the flux.
  • the control device by means of which in particular the spraying times and / or spray quantity and / or spraying duration and / or spraying direction per unit area of the component can be set, results in a homogeneous and / or individual response to the Component-adapted spray application and from this a defined layer thickness of the flux on the component to be galvanized.
  • the control device is designed such that the automated spray application takes place as a function of the shape and / or the type and / or the material and / or the surface quality, in particular the surface roughness of the component.
  • the spray application is automated via the control device such that the concentration of the flux and / or the spray duration of the spray application per component and / or the spray duration of the spray application indicate different areas of the component and / or the thickness of the spray application on the component, in particular different thicknesses of the spray application a component and / or a simultaneous spray application of different flux and / or different flux components is adjustable.
  • the spraying device has a plurality of spray heads with which preferably different areas of the component can be sprayed.
  • at least one spray head can be moved relative to the component in the X direction and / or in the Y direction and / or in the Z direction.
  • the movement of the spray head in question which can preferably be moved in all three directions, takes place in terms of control technology via the control device.
  • the aforementioned measure ultimately makes it possible for the distance and / or the direction of a spray head of the spray device to the component to be changed when the flux is sprayed onto a component.
  • it can be ensured in this way that areas of the component which are not directly accessible can be easily reached by appropriate alignment of the spray head and can be provided with the layer thickness of the flux provided exactly for this area.
  • the spray device is preferably designed to spray different fluxes and / or different flux components simultaneously.
  • at least one spray head has at least two spray lines for different fluxes and / or different flux components.
  • This embodiment has the advantage that different areas of a component can be sprayed with a different flux or different flux components. This can influence the subsequent hot-dip galvanizing in a corresponding manner. In principle, however, it is also possible to spray immediately successive components of the galvanizing process with different fluxes / flux components without interrupting the production process.
  • a drying device is preferably connected to the spraying device of the flux application device.
  • This drying device is designed in particular for drying the sprayed-on flux in the separated state of the component. Since a precisely defined amount of flux is applied to the component by the spray application, the drying step can be carried out relatively quickly and therefore relatively inexpensively, which is not possible in comparison to drying after an immersion bath.
  • the flux application is preferably preceded by a surface treatment and in particular degreasing.
  • a surface treatment device, in particular pickling device, upstream of the flux application device is preferably provided for the chemical, in particular wet-chemical, surface treatment of the components by means of a surface treatment agent, preferably for pickling the surfaces of the components by means of a pickling agent.
  • the surface treatment device it makes sense for the surface treatment device to have a spray device for spraying the surface treatment agent, in particular the pickling agent, onto the surface of the individual component.
  • the same basic advantages apply as for the spray application of the flux.
  • the separation of the component is also particularly suitable for surface treatment.
  • the spray device for spraying the surface treatment agent can be designed in a corresponding manner in a constructive manner as the spray device for the spray application of the flux.
  • adjustable spray heads and the use of different spray lines for different surface treatment agents and / or different surface treatment agent components can be provided.
  • the surface treatment device is preceded by a degreasing device for degreasing the components by means of a degreasing agent.
  • Degreasing is preferably also carried out by spraying the degreasing agent onto the surface of the separated component.
  • the spray device for the degreasing agent is preferably constructed in the same way as the spray device for the surface treatment agent, so that reference can expressly be made to this.
  • one or more adjustable spray heads are provided and different degreasing agents or components can be sprayed on via at least two separate spray lines per spray head.
  • At least one rinsing device for rinsing the components with a detergent is provided in a preferred embodiment of the system according to the system.
  • a rinsing device is provided after the degreasing device and / or after the surface treatment device.
  • a rinsing device is preferably provided after the degreasing device and after the surface treatment device.
  • the spray device preferably each spray device in connection with the system according to the invention, is assigned a housing which is in particular closed on all sides. It goes without saying that one or more feed and discharge openings for the goods carrier and the component (s) isolated thereon can be provided in the housing.
  • the housing ultimately prevents the environment from being exposed to vapors and / or chemicals which are used or are produced during spraying.
  • an enclosure makes it possible to collect the spray in question, in particular by means of appropriate floor drains of the enclosure, and to recycle it for reuse. If necessary, appropriate preparation of the respective spray is provided.
  • a separating device is provided for the preferably automated feeding, immersion and removal of a component separated from the goods carrier into the galvanizing bath of the hot-dip galvanizing device.
  • the conveying device and the hot-dip galvanizing device are designed in such a way that the component isolated on the goods carrier is guided through the galvanizing bath in the separated state.
  • each component can be manipulated and treated exactly in the separating device according to the invention, for example by special turning and steering movements of the component when it is pulled out of the melt.
  • the post-processing effort can be significantly reduced or even partially avoided.
  • the invention offers the possibility that zinc ash buildup can be significantly reduced and in some cases even avoided. This is possible because the process according to the invention can be controlled in such a way that a component to be galvanized, after being immersed, is moved away from the immersion location and moved to a location remote from the immersion location. Subsequently, the immersion takes place. While the zinc ash rises in the area of the immersion point and is located on the surface of the immersion point, there are few or no zinc ash residues at the immersion point. This special technique allows zinc ash build-up to be significantly reduced or avoided.
  • Another advantage in terms of system technology with a single galvanizing is that no wide and deep, only a narrow galvanizing tank is necessary. This reduces the surface of the galvanizing bath, which can be better shielded in this way, so that the radiation losses can be significantly reduced.
  • the invention with the isolated galvanizing results in components with a higher quality and cleanliness on the surface, the components as such being exposed to identical process conditions and thus having the same component characteristics.
  • the invention also offers economic advantages over the prior art from an economic point of view, since the production time can be reduced by up to 20%, taking into account the post-processing that is no longer necessary or in some cases very limited.
  • the alternative with the separating device provides that the separating device has at least one separating means arranged between the flux application device and the hot-dip galvanizing device.
  • This separating means is then preferably designed in such a way that it either removes a separated component from the goods carrier or several components as a small group, although these are separated from one another, that is to say sufficiently spaced apart, and the separated component or the small group is removed from one another then feeds individual components to the hot-dip galvanizing device for hot-dip galvanizing.
  • the separating means can remove or remove the component directly from the product carrier or remove the component from the component group that has already been placed by the product carrier.
  • the separating means is designed in such a way that a separated component is immersed in an immersion area of the bath, then moved from the immersion area to an adjacent immersion area and is subsequently immersed in the immersion area.
  • the above-mentioned movement can also be achieved, if the separator is not used, but instead the component is fastened to the goods carrier in the separated state and fed to the galvanizing bath via the goods carrier, immersed in the immersion area, moved to the immersion area and immersed there becomes.
  • zinc ash is formed on the surface of the immersion area as a reaction product of the flux with the zinc melt.
  • the immersion area is adjacent to the immersion area, that is to say it is spatially spaced apart and in particular non-overlapping areas of the galvanizing bath.
  • the component remains in the immersion area of the galvanizing bath at least until the reaction time between the component surface and the zinc-aluminum alloy of the galvanizing bath has ended. This ensures that the zinc ash, which moves upward within the melt, only spreads out on the surface of the immersion area. The component can then be moved into the replacement area, which is essentially free of zinc ash, and can be replaced there.
  • the component remains between 20% and 80%, preferably at least 50% of the galvanizing time in the area of the immersion area and only then moves into the immersion area becomes.
  • the conveying device or the separating means is designed in such a way that all components in an identical manner, in particular with an identical movement, in an identical arrangement and / or with an identical time through the galvanizing bath. Ultimately, this can easily be achieved by a corresponding control of the conveying device or the at least one assigned separating means. Due to the identical handling, identical components, that is to say components which each consist of the same material and have the same shape, each have identical product properties. This includes not only the same zinc layer thicknesses, but also identical characteristic values of the galvanized components, since they were each led through the galvanizing bath in an identical manner.
  • the invention offers the advantage of being isolated during hot-dip galvanizing that zinc noses can be avoided more easily.
  • a stripping device is provided in connection with the replacement area, the conveying device or the separating means being preferred in a preferred embodiment of this inventive concept is designed in such a way that all components are guided past the stripping device for stripping liquid zinc in an identical manner.
  • the separating means which, however, can also be implemented in combination with the stripping device, it is provided that all components are moved in an identical manner after being removed in such a way that dripping noses of liquid zinc are removed, in particular dripping and / or evenly distributed on the component surfaces.
  • each individual component is defined not only by the galvanizing bath, but also either in a specific positioning, for example an inclined position of the component, and to move past one or more scrapers and / or the component by means of special ones To move rotary and / or steering movements after the immersion so that zinc noses are at least substantially avoided.
  • a cooling device in particular a quenching device, is provided after the hot-dip galvanizing device, on which the component is cooled or quenched after the hot-dip galvanizing.
  • an aftertreatment device can be provided in particular after the cooling device.
  • the aftertreatment device serves in particular to passivate, seal or color the galvanized components.
  • the post-treatment step can also include post-processing, in particular the removal of impurities and / or the removal of zinc noses. As has been explained above, the post-processing step in the invention is, however, considerably reduced compared to the method known in the prior art and in some cases even unnecessary.
  • control device is coupled not only to the individual spray devices, but also to the conveyor device. This makes it possible to change the transport speed of the individual goods carriers as required. For example, it is possible to change the transport speed of a product carrier at least in regions relative to the transport speed of another product carrier. This makes it possible to adapt certain process steps, which take more time than others, to the respective requirements, if necessary. As a result, the entire process sequence of the method according to the invention is optimized and thus shortened.
  • the conveying device has a circumferential, closed transport route with a plurality of goods carriers, which leads at least along the surface treatment device, the flux application device and the hot-dip galvanizing device.
  • the transport route extends along all process steps of the system according to the invention.
  • the conveyor can basically be designed as a crane system. In this case, the individual components are then transported hanging. In principle, however, it is also possible to design the conveyor as a floor conveyor. In this case, the goods carriers move on the floor. In this case, the transport route can be designed as a rail guide. In principle, it is also possible in this connection to provide a combination of a crane system with supplementary floor conveyors.
  • the flux application device in particular the flux bath of the flux application device, contains the flux in preferably aqueous solution, in particular in amounts and / or concentrations of the flux in the range from 200 to 700 g / l, in particular 350 to 550 g / l , preferably 500 to 550 g / l, and / or that the flux is used as a preferably aqueous solution, in particular with amounts and / or concentrations of the flux in the range from 200 to 700 g / l, in particular 350 to 550 g / l, preferably 500 to 550 g / l.
  • Fig. 1 a sequence of the method according to the invention is shown schematically in a system 1 according to the invention.
  • the flowchart shown is a method possible according to the invention, but individual method steps can also be omitted or can be provided in a different order than shown and described below. Further method steps can also be provided.
  • For the rest it is the case that not all process stages have to be provided in a spatially combined system 1.
  • Decentralized implementation of individual process stages is also possible. In particular, the entire process can be cycled.
  • stage A the delivery and storage of components 2 to be galvanized at a connection point.
  • the components 2 have already been mechanically surface-treated, in particular sandblasted. This can, but does not have to be provided.
  • stage B the components 2 are connected in the separated state to a goods carrier 7 of a conveyor 3.
  • a goods carrier 7 In the illustrated embodiment, only a single component 2 is attached to the goods carrier 7.
  • the goods carrier 7 It is also possible for the goods carrier 7 to have a basket, a frame or the like in which or in which the component 2 is inserted. It is not shown that in principle it is also possible to fasten a plurality of components 2 to the goods carrier 7 in the manner of a small group. The components 2 are then sufficiently spaced from one another, so that ultimately there is an isolated state.
  • Degreasing of component 2 takes place in stage C.
  • Alkaline or acidic degreasing agents 11 are used here to remove residues of fats and oils on component 2.
  • stage D a rinse, in particular with water, of the degreased component 2 is provided.
  • the residues of degreasing agent 11 are rinsed off the component 2.
  • the surface of component 2 is pickled, that is, a wet-chemical surface treatment. Pickling is usually done with dilute hydrochloric acid.
  • Stage F is followed by stage F, which in turn involves rinsing, in particular with water, in order to prevent the pickling agent from being carried over into the subsequent process stages.
  • the correspondingly cleaned and pickled component 2 to be galvanized is then fluxed, namely subjected to a flux treatment.
  • the flux treatment in stage H is carried out in the present case with an aqueous flux solution.
  • the goods carrier 7 with the component 2 is fed to a drying stage I in order to produce a solid flux film on the surface of the component 2 and to remove adhering water.
  • step J the component 2 is removed from the goods carrier 7.
  • the component can be temporarily stored at this point.
  • stage K component 2 is hot-dip galvanized.
  • the component 2 is immersed in a galvanizing bath 28 and then immersed again after a predetermined dwell time.
  • the galvanizing in process step K is followed by dripping of the still liquid zinc in stage L.
  • the dripping takes place, for example, by moving along the component 2, which is galvanized in the separated state, on one or more scrapers of a stripping device and / or by predetermined pivoting and rotating movements of the component 2, which either leads to dripping or to the even distribution of the zinc on the component surface.
  • the galvanized component is then quenched in step M.
  • the quenching in method step M is followed by an aftertreatment in stage N, which can be, for example, passivation, sealing or organic or inorganic coating of the galvanized component 2.
  • the aftertreatment also includes a possible postprocessing of the component 2.
  • system 1 for hot-dip or hot-dip galvanizing of components 2 is shown in a schematic representation.
  • the system 1 is intended for hot-dip galvanizing a large number of identical components 2 in discontinuous operation, the so-called piece galvanizing.
  • system 1 is designed and suitable for hot-dip galvanizing of components 2 in large series.
  • Large-volume galvanizing denotes a galvanizing process in which more than 100, in particular more than 1000 and preferably more than 10,000, identical components 2 are galvanized in succession without components 2 of different shape and size being galvanized in between.
  • the system 1 has a conveyor 3 for conveying the components 2.
  • the conveying device 3 is in the present case a crane runway with a rail guide 4 on which a trolley 5 with a lifting mechanism can be moved.
  • a goods carrier 7 is connected to the trolley 5 via a hoist rope 6.
  • the goods carrier 7 serves to hold and fasten the components 2 in the separated state.
  • the connection of the components 2 to the goods carrier 7 usually takes place at a connection point 8 of the system, at which the components 2 are arranged for connection to the goods carrier 7.
  • a degreasing device 9 connects to the connection point 8.
  • the degreasing device 9 has a degreasing chamber 10 with a spray device 10a with a plurality of spray heads 10b for spraying on a degreasing agent 11.
  • the degreasing chamber 10 represents an at least substantially complete housing for the spray device 10a, so that sprayed degreasing agent 11 remains in the degreasing chamber 10 as far as possible and does not escape from the chamber during spraying.
  • the degreasing agent 11 can be acidic or basic.
  • the degreasing device 9 is followed by a rinsing device 12 which has a sink 13 with detergent 14 therein.
  • the detergent 14 is water in the present case.
  • a surface treatment device designed as a pickling device 15 for wet-chemical surface treatment of the components 2 is connected to the flushing device 12, that is to say downstream in the process direction.
  • the pickling device 15 has a pickling chamber 16 with a spray device 16a and a plurality of spray heads 16b for spraying on a pickling agent 17 .
  • the pickling chamber 16 represents an essentially closed housing for the spray device 16a, so that sprayed pickling agent 17 does not escape from the pickling chamber 16 during the spraying process.
  • the pickling agent 17 in the present case is dilute hydrochloric acid.
  • a rinsing device 18 with a sink 19 and detergent 20 located therein is again provided.
  • the detergent 20 is again water.
  • the flux application device 21 In the process direction behind the flushing device 18 there is a flux application device 21 with a flux chamber 22 with a spray device 22a with a plurality of spray heads 22b for spraying on a flux 23.
  • the flux chamber 22 also represents an essentially closed housing for the spray device 22a, so that the spray medium cannot exit from the flux chamber 22 during the spraying process.
  • the flux contains zinc chloride (ZnCl 2 ) in an amount of 58 to 80% by weight and ammonium chloride (NH 4 Cl) in an amount of 7 to 42% by weight. Furthermore, if necessary, a small amount of alkali and / or alkaline earth salts and, if necessary, a heavy metal chloride are provided in a further reduced amount.
  • a wetting agent may also be provided in small amounts. It goes without saying that the aforementioned weight specifications are based on the flux 23 and make up 100% by weight in the sum of all components of the composition. Otherwise, the flux 23 is present in an aqueous solution, specifically in a concentration in the range from 500 to 550 g / l.
  • a drying device 24 is connected to the flux application device 21 in order to remove adhering water from the flux film, which is located on the surface of the component 2.
  • the system 1 has a hot-dip galvanizing device 25 in which the components 2 are hot-dip galvanized in the separated state.
  • the hot-dip galvanizing device 25 has a galvanizing basin 26, optionally with a housing 27 provided on the top side.
  • a galvanizing bath 28 which contains a zinc-aluminum alloy.
  • the galvanizing bath has 60 to 98% by weight of zinc and 2 to 40% by weight of aluminum.
  • small amounts of silicon and optionally a small amount of alkali and / or alkaline earth metals and heavy metals are provided, if necessary in further reduced proportions. It goes without saying that the aforementioned weight specifications are based on the galvanizing bath 28 and make up 100% by weight in the sum of all components of the composition.
  • a cooling device 29 which is provided for quenching the components 2 after the hot-dip galvanizing.
  • a post-treatment device 30 is provided, in which the hot-dip galvanized components 2 can be post-treated and / or post-processed.
  • the separating device 31 Between the drying device 24 and the hot-dip galvanizing device 25 there is a separating device 31 which is provided for the automated feeding, immersion and removal of a component 2 separated from the goods carrier 7 into the galvanizing bath 28 of the hot-dip galvanizing device 25.
  • the separating device 31 has a separating means 32 which is provided for handling the component 2, namely for removing the component 2 from the product carrier 7 and for feeding, immersing and immersing the separated component 2 into the galvanizing bath 28.
  • the separation means 32 For the separation, there is a transfer point 33 between the separation means 32 and the drying device 24, at which the component 2 is either deposited or, in particular, can be removed from the goods carrier 7 in the hanging state.
  • the separating means 32 is preferably designed such that it can be moved in the direction of the transfer point 33 and away from it and / or in the direction of the galvanizing device 25 and can be moved away from it.
  • the separating means 32 is designed in such a way that it moves a component 2, which is individually immersed in the galvanizing bath 28, from the immersion area to an adjacent immersion area and subsequently immerses in the immersion area.
  • the immersion area and the immersion area are spaced apart from one another, ie they do not correspond to one another. In particular, the two areas do not overlap.
  • the movement from the immersion area to the immersion area takes place only after a predetermined period of time has elapsed, namely after the reaction time of the flux 23 with the surface of the components 2 to be galvanized has ended.
  • a control device 34 is assigned to the separating device 31 and / or the separating means 32, according to which the separating means 32 is moved such that all the components 2 separated by the goods carrier 7 pass through the galvanizing bath 28 with identical movement, in an identical arrangement and with an identical time become.
  • the control device 34 is not only coupled to the separating means 32 of the separating device 31, but also to the spraying devices 10a, 16a and 22a and also to the trolley 5.
  • the control device 34 thus makes it possible to determine the transport speed of the trolley 5 and thus to control the goods carrier 7 from one process stage to the next and also to control the dwell time in the respective process stage.
  • the spray application can also be controlled in the respective process stages via the control device 34.
  • the separating means 32 can also be controlled via the associated control device such that an already galvanized component 2 is still moved within the housing 27, for example by corresponding rotary movements, in such a way that excess zinc drips off and / or alternatively is evenly distributed on the component surface.
  • Fig. 2 shows a state in which a plurality of components 2 to be galvanized are stored at the connection point 8.
  • the goods carrier 7 is located above the group of components 2.
  • a component 2 is fastened to the goods carrier 7.
  • the spray devices 10a, 16a and 22a each spray the respective spray. In fact, however, spraying only takes place when component 2 located on goods carrier 7 is actually located in the respective spray chamber. Ultimately, this is controlled by the control device 34.
  • Fig. 3 component 2 is located above the pickling device 15. Steps C and D, namely degreasing and rinsing, have already been carried out.
  • Fig. 4 component 2 has been deposited at transfer point 33.
  • the trolley 5 is on the way back to the connection point 8 to accommodate a new component 2.
  • the component deposited at the transfer point 33 has already been picked up by the separating means 32, so that this component 2 is shortly before being fed into the hot-dip galvanizing device 25.
  • the conveying device 3 it is possible for the conveying device 3 to have a circumferential rail guide 4.
  • the rail guide 4 here represents a closed path.
  • a plurality of goods carriers 7 it is possible for a plurality of goods carriers 7 to be provided.
  • the rail guide 4 then forms a closed circuit.
  • the conveyor 3 is not designed as a crane runway but as a floor conveyor.
  • One or more goods carriers 7 then move on the floor, possibly along a rail guide, and in doing so move to the individual process stages.
  • Several goods carriers 7 can also be provided here.
  • the respective spray agent is preferably processed, in particular cleaned.
  • flushing devices 12, 18 can also have a spraying device of the type described above, provided in a corresponding spraying chamber.
  • the rinsing does not necessarily have to be done by immersion rinsing.
  • the individual spray devices 10a, 16a, 22a have adjustable spray heads 10b, 16b, 22b.
  • Each spray head 10b, 16b, 22b can be adjustable individually or else a group of spray heads 10b, 16b, 22b.
  • the respective spraying device can be designed in such a way that spraying on of the respective spraying agent with different concentrations is possible. This can be done, for example, by supplying a highly concentrated spray medium via one spray line, while a diluent, for example water, is supplied via another spray line.
  • the components 2 can be guided through the hot-dip galvanizing device 25 on the goods carrier 7 in the separated state. Transport to the subsequent process steps, which follow the hot-dip galvanizing, can also take place via the conveyor 3.

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107557708B (zh) * 2017-10-13 2023-04-18 徐州瑞马智能技术有限公司 一种闭环热镀锌生产线及控制方法
CN108085633B (zh) * 2018-01-16 2024-02-20 衡水京华制管有限公司 一种钢管热浸锌后多工位连续加工生产线
DE102019108033A1 (de) * 2019-02-25 2020-08-27 Fontaine Holdings Nv Verfahren zur Verzinkung, insbesondere Feuerverzinkung, von Eisen- und Stahlerzeugnissen
DE102020106543A1 (de) 2020-03-11 2021-09-16 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Verzinken eines Bauteils, insbesondere für ein Kraftfahrzeug, sowie Bauteil für ein Kraftfahrzeug
CN111286687B (zh) * 2020-04-03 2022-02-22 浙江德尚桥梁钢结构有限公司 一种钢结构管件表面镀锌处理系统
DE102020127784A1 (de) 2020-10-22 2022-04-28 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Oberflächenbehandlung eines Bauteils sowie Kraftfahrzeug
CN112210738A (zh) * 2020-11-20 2021-01-12 山东富海材料科技有限公司 一种高硬度极薄带钢平行多点连续热浸镀锌机组
CN113061826A (zh) * 2021-03-25 2021-07-02 湘潭大学 一种高效热浸镀锌的装置
DE102021111089A1 (de) * 2021-04-29 2022-11-03 Seppeler Holding Und Verwaltungs Gmbh & Co. Kg Verfahren, Anlage und Verwendung dieser in der diskontinuierlichen Stückverzinkung
CN113913717B (zh) * 2021-10-15 2023-06-30 常熟市常力紧固件有限公司 一种汽车螺栓用全自动热镀锌装置及方法
DE102022100555A1 (de) 2022-01-11 2023-07-13 Seppeler Holding Und Verwaltungs Gmbh & Co. Kg Verfahren zur verbesserten Verzinkung von Bauteilen
CN114807804A (zh) * 2022-03-09 2022-07-29 仙桃市环美化工有限公司 一种多功能防爆剂
CN115287570B (zh) * 2022-06-20 2023-09-01 河南经纬电力科技股份有限公司 一种电力金具热镀锌后自动去余锌装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1935087A (en) * 1930-09-20 1933-11-14 Jones & Laughlin Steel Corp Galvanizing machine
US2520658A (en) * 1948-01-05 1950-08-29 Rheem Mfg Co Method of galvanizing cylindrical tanks
US2764124A (en) * 1952-02-09 1956-09-25 Smith Corp A O Galvanizing interior of container
GB830258A (en) * 1956-01-10 1960-03-16 Crittall Mfg Co Ltd Galvanizing process
US2856895A (en) * 1956-01-18 1958-10-21 United States Steel Corp Apparatus for handling elongated articles
DE1154329B (de) * 1957-09-17 1963-09-12 Ofenbaugesellschaft Berg & Co Vorrichtung zur Vorbehandlung von Stueckgut, z. B. von Fittings, fuer das anschliessende Feuerverzinken
DE1152292B (de) * 1957-09-17 1963-08-01 Ofenbaugesellschaft Berg & Co Vorrichtung zum Feuerverzinken von Stueckgut, z. B. von Fittings
US2940870A (en) * 1959-02-19 1960-06-14 Hanson Van Winkle Munning Co Method of hot dip galvanizing a ferrous metal
US3639142A (en) * 1968-06-10 1972-02-01 Bethlehem Steel Corp Method of galvanizing
DE2025801B2 (de) * 1970-05-26 1976-05-26 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum beschichten von zu verzinnenden bauteilen mit einem flussmittel
DE2317600C3 (de) * 1973-04-07 1975-08-28 Basf Ag, 6700 Ludwigshafen Wäßerige Flußmittellösungen für die Feuerverzinkung
US4113182A (en) * 1977-03-18 1978-09-12 Brago Reacelyn A Multi-fluid wash system
US4315042A (en) * 1978-07-14 1982-02-09 Hybrid Technology Corporation Solder removal technique
DE3148539C2 (de) * 1981-12-08 1983-12-08 Ransburg-Gema AG, 9015 St.Gallen Sprühbeschichtungsanlage
DE3409935C1 (de) * 1983-11-11 1985-04-18 Hoesch Ag, 4600 Dortmund Verfahren und Einrichtung zum Feuerverzinken von Rippenrohren
US5145531A (en) * 1990-10-31 1992-09-08 Hughes Aircraft Company Fluxing apparatus and method
GB2275638B (en) * 1993-03-05 1996-05-15 Invicta Contract Eng Ltd Improvements in sprayers
AU7554394A (en) * 1993-08-05 1995-02-28 Ferro Technologies, Inc. Lead-free galvanizing technique
TW374096B (en) * 1995-01-10 1999-11-11 Nihon Parkerizing Process for hot dip-coating a steel material with a molten aluminum alloy according to an one-stage metal alloy coating method using a flux
US6277443B1 (en) * 1998-06-30 2001-08-21 John Maneely Company Low lead or no lead batch galvanization process
EP1209245A1 (en) 2000-11-23 2002-05-29 Galvapower Group N.V. Flux and its use in hot dip galvanization process
WO2005056867A2 (en) * 2003-12-09 2005-06-23 Umicore Heat transfer limiting flux and its use in galvanising steel
GB2507310B (en) * 2012-10-25 2018-08-29 Fontaine Holdings Nv Flux compositions for hot dip galvanization
CN103290348B (zh) * 2013-03-03 2016-01-20 江苏省飞花灯饰制造有限公司 自动镀锌工艺
DE102016106662A1 (de) * 2016-03-09 2017-09-14 Fontaine Holdings Nv Anlage zur Feuerverzinkung und Feuerverzinkungsverfahren, insbesondere für die Großserienproduktion
DE102016106660A1 (de) * 2016-03-09 2017-09-14 Fontaine Holdings Nv Anlage zur Feuerverzinkung und Feuerverzinkungsverfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102016106617A1 (de) 2017-09-21
PL3411510T3 (pl) 2020-09-07
BR112018069272A2 (pt) 2019-01-22
MX2018011515A (es) 2019-02-20
SI3411510T1 (sl) 2020-07-31
US11118256B2 (en) 2021-09-14
US20190100830A1 (en) 2019-04-04
ES2787300T3 (es) 2020-10-15
CN108884545B (zh) 2020-09-18
HUE048789T2 (hu) 2020-08-28
WO2017162342A1 (de) 2017-09-28
DK3411510T3 (da) 2020-05-18
CN108884545A (zh) 2018-11-23
CA3018273A1 (en) 2017-09-28
BR112018069272B1 (pt) 2023-02-07
CA3018273C (en) 2020-11-10
EP3411510A1 (de) 2018-12-12

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