EP3221487B1 - Procédé et dispositif pour revêtir une bande métallique - Google Patents

Procédé et dispositif pour revêtir une bande métallique Download PDF

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Publication number
EP3221487B1
EP3221487B1 EP15777639.4A EP15777639A EP3221487B1 EP 3221487 B1 EP3221487 B1 EP 3221487B1 EP 15777639 A EP15777639 A EP 15777639A EP 3221487 B1 EP3221487 B1 EP 3221487B1
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EP
European Patent Office
Prior art keywords
metal strip
blowing device
correction roller
coating
slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15777639.4A
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German (de)
English (en)
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EP3221487A1 (fr
Inventor
Dominique Fontaine
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Fontaine Engineering und Maschinen GmbH
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Fontaine Engineering und Maschinen GmbH
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Priority to PL15777639T priority Critical patent/PL3221487T3/pl
Priority to SI201530605T priority patent/SI3221487T1/sl
Publication of EP3221487A1 publication Critical patent/EP3221487A1/fr
Application granted granted Critical
Publication of EP3221487B1 publication Critical patent/EP3221487B1/fr
Priority to HRP20190156TT priority patent/HRP20190156T1/hr
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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
    • C23C2/04—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
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
    • B05C3/125—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length the work being a web, band, strip or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/007—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • 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
    • C23C2/0034—Details related to elements immersed in bath
    • C23C2/00342—Moving elements, e.g. pumps or mixers
    • C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
    • 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
    • C23C2/0035—Means for continuously moving substrate through, into or out of the 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
    • C23C2/14—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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • 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
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • 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
    • C23C2/52—Controlling or regulating the coating processes with means for measuring or sensing
    • C23C2/524—Position of the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/04—Sheets of definite length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/10—Applying the material on both sides

Definitions

  • the invention relates to a method and apparatus for coating a metal strip with an initially liquid coating material, for. As zinc.
  • the method and the device are used in particular for hot-dip galvanizing the metal strip.
  • Such devices for coating a metal strip are basically known in the art, such. B. from the DE 10 2009 051 932 A1 , Specifically, this document discloses a coating container which is filled with liquid coating material. For coating, the metal strip is passed through the container with the coating material. After leaving the coating container, the metal strip passes through a blow-off device arranged above the coating container for blowing off excess parts of the still liquid coating material from the surface of the metal strip. Above the blow-off device, an electromagnetic stabilization device supported by the blow-off device is arranged to stabilize the metal strip after leaving the coating container and the blow-off device. In particular, the electromagnetic stabilizing device causes the band to be held centrally in a center plane of the entire apparatus and to prevent or at least reduce vibrations of the metal band during passage through the coating container and the blower.
  • Both the blow-off device and the electromagnetic stabilization device each have a slot through which the metal strip is guided.
  • the metal strip runs in a predetermined desired center position through the slot of the blower. Only then is it ensured that the effect of the blow-off nozzles of the blower on the top and bottom of the metal strip is the same and sets a desired uniform thickness distribution of the coating material on the metal strip.
  • the desired center position is defined in particular by a preferably uniform spacing of the broad sides and the narrow sides of the metal strip relative to the opposing nozzles of the blow-off device and in particular in that the metal strip is not inclined, twisted or excessively curved relative to the longitudinal orientation of the slot or nozzles ,
  • the German patent application DE 10 2007 042 897 A1 discloses a method with a device for coating a metal strip with a coating material, eg zinc.
  • the metal strip is passed through a coating container, which with the liquid coating material is filled, wherein the coating material adheres to the surface of the metal strip.
  • the metal strip passes through a slot of a blow-off device, which serves to blow off excess parts of the still liquid coating material from the surface of the metal strip.
  • a curvature sensor is provided for detecting the actual curvature of the metal strip after leaving the coating container. If the detected actual curvature exceeds a predetermined allowable curvature threshold, a correction roller is turned against the metal belt to smooth it. It is also disclosed that the blower is controlled.
  • the publication DE 43 00 868 C1 teaches to position the blower by means of adjusting drives so that the distance between the nozzle gap and the belt surface remains constant.
  • the corresponding control or regulation of the position of the blow-off device takes place as a function of the actual position of the metal strip, which is detected continuously by a separate measuring device.
  • the WO 94/02658 A1 teaches that, at least implicitly, a camber sensor is provided for detecting the camber of the metal strip above the blower. If too much curvature is detected, so that there is a risk of contact between the belt and the blower, the blower is moved transversely to the metal belt level, as long as over the entire width of the metal strip, a minimum distance between the metal strip and the discharge again is complied with.
  • the JP 2003 113460 A provides a (displacement value) arranged in the electromagnetic stabilization device so-called displacement sensor, which is formed, the curvature state or the extent of eccentricity of the metal strip in the slot of the electromagnetic stabilization device capture.
  • the electromagnets of the electromagnetic stabilization device are energized in order to generate magnetic forces on the metal strip in such a way that the curvature and the path position of the metal strip are corrected.
  • a stabilizing roller and the correction roller are controlled or positioned in the metal bath by means of a process control device as a function of the initial values.
  • Scraper nozzles are also controlled and positioned according to a mathematically determined eccentricity index, specifically such that the index or the eccentricity of the metal strip is within or below a predetermined threshold value.
  • the wiper nozzles and the electromagnetic blocks or the electromagnetic stabilizer are each moved in parallel by the same amount.
  • the invention has the object of developing a known method and a known device of the type mentioned for coating a metal strip to the effect that an uneven thickness distribution of the coating on the metal strip is prevented due to the employment of the correction roller.
  • a first embodiment can serve as a criterion or as a measure of the displacement of the blower in addition to the employment of the correction roller and the previously detected deviation of the actual position of the metal strip of its desired center position.
  • This criterion offers the advantage that there is a fairly accurate indication of the necessary displacement of the blower.
  • the stabilizer mechanically supports on the upstream blower.
  • the electromagnetic stabilizer is also referred to by the applicant as Dynamic Electro Magnetic Coating Optimizer DEMCO.
  • the object of the invention is further achieved device technology by a device according to claim 4.
  • the advantages of this solution correspond to the advantages mentioned above with respect to the claimed method.
  • Advantageous embodiments of the device are the subject of the dependent claims.
  • FIG. 1 shows the inventive device 100 for coating a metal strip 200 with a liquid coating material 300, z.
  • a liquid coating material 300 As zinc.
  • the initially uncoated metal strip 200 is conducted in the transport direction R in a coating container 110, which is filled with the liquid coating material.
  • the metal strip 200 Within the coating container 110, the metal strip 200 is deflected by means of a deflection roller 115, so that it leaves the coating container upwards. After passing through the coating container, the still liquid coating material adheres to the metal strip 200.
  • the guide roller 115 is downstream of a pair of rollers in the transport direction R of the metal strip 200, between which the coated metal strip is passed.
  • the pair of rollers is typically disposed within the coating container 110 such that it is surrounded by the coating material 300 in the performance of the coating process.
  • One of the rollers can be adjusted as a correction roller 160 against the other roller of the pair of rollers to smooth the metal strip in the presence of unwanted curvature.
  • the degree of curvature of the metal strip 200 is detected by means of a buckling sensor 154 and compared with a predetermined buckling threshold. The comparison can be carried out in a control device 190. If the extent of the curvature is greater than the curvature threshold value, then the correction roller, actuated by the control device 190, is turned against the metal strip.
  • the pair of rollers is downstream of a blower 120 in the transport direction R of the metal strip, which spans a slot 122 through which the metal strip 200 is guided. With the help of the blower excess coating material is blown off the surface of the metal strip 200.
  • the blower 120 to detect an electromagnetic stabilizer 140, which in turn has a slot 142 through which the metal strip 200 is also guided.
  • the metal strip 200 preferably passes through the slot 142 in a predetermined desired center position 128, as in FIG FIG. 2 shown so that the forces provided by the electromagnetic stabilizer 140 forces can act in a desired manner uniformly stabilizing the metal strip 200.
  • a position sensor For detecting a deviation of the actual position of the metal strip 200 from a predetermined desired center position in the slot 122 of the blower 120, a position sensor is provided. Furthermore, a control device 180 is provided as a rule, the actual position of the metal strip 200 to the predetermined desired center position in the slot 122 of the blower, as described above with reference to FIG. 2 explained by displacement of the blower 120 by means of a displacement device 130. The displacement takes place in a plane transverse to the transport direction R of the metal strip. The regulation is carried out in response to the detected by the position sensor 152 deviation of the actual position of the desired center position of the metal strip 200.
  • the control can also be carried out with additional consideration of the extent of the curvature of the metal strip detected by the curvature sensor 154.
  • the position sensor 152 and the camber sensor 154 are both part of a metal belt detector 150.
  • the function of the position sensor 152 and the camber sensor 154 may, according to one embodiment, be realized by a single typically laser-based sensor device, also called “laser” for short; the position sensor 152 and the curvature sensor 154 then form a structural unit in the form of the sensor device or the metal strip detection device.
  • the displacement of the blower 120 can take place in accordance with the detected deviation of the actual position of the metal strip from the predetermined desired center position in the slot 122 of the blower.
  • the blower 120 is displaced by means of the displacement device 130 such that the metal strip returns the slot 122 of the blower back to the predetermined desired center position 128 passes through to ensure the desired uniform coating.
  • the displacement of the blow-off device 120 may also take into account the setting position of the correction roller 160 or... Detected by a correction roller detection device 165 their change takes place.
  • the output of the correction roller detecting means 165 is also coupled to the input of the control means 180. In this way, the displacement of the blower would be improved in view of a desired maximization of the uniformity of the coating.
  • the correction roller detection device 165 may be designed in the form of two encoders, one of which in each case sits on a respective drive of the correction roller 160.
  • the metal strip and correction roller detection devices 150, 165 are designed to detect, preferably, all conceivable deviations of an actual position of the metal strip from the desired desired center position. These include, in particular, a (parallel) displacement of the metal strip in the x or y direction or a rotation, as described above with reference to FIG FIG. 2 explained.
  • the displacement device 130 - with suitable control by the control device 180 - is designed to move the blower 120 in a plane transverse to the transport direction R the metal strip in any way, in particular (parallel) to move or twist to the passage of the metal strip in to realize the desired center position.
  • the representation of the displacement device 130 as a piston-cylinder unit is insofar only exemplary, but not limiting.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Coating Apparatus (AREA)
  • Coating With Molten Metal (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (6)

  1. Procédé pour revêtir une bande métallique (200) d'un matériau de revêtement (300), le procédé comportant les étapes suivantes :
    passage de la bande métallique (200) à revêtir à travers un conteneur d'enduction (110) lequel est rempli d'un matériau de revêtement liquide (300), le matériau de revêtement adhérant à la surface de la bande métallique à revêtir, et
    passage de la bande métallique à revêtir (200) à travers une fente (122) d'un dispositif de soufflage (120) disposé après le conteneur d'enduction (110) dans le dispositif de transport (R) de la bande métallique (200) pour souffler des parties excédentaires du matériau d'enduction encore liquide (300) de la surface de la bande métallique,
    saisie du bombement réel de la bande métallique (200) après avoir quitté le conteneur d'enduction (110), et mise en place d'un rouleau de correction (160) disposé à l'intérieur du conteneur d'enduction (110) contre la bande métallique (200) pour lisser la bande métallique, lorsque l'étendue du bombement réel dépasse une valeur de seuil de bombement admissible prédéfinie, la position réelle de la bande métallique (200) variant dans la fente du dispositif de soufflage (120) en raison de la mise en place du rouleau de correction (160),
    caractérisé par les étapes suivantes :
    réglage de la position réelle de la bande métallique (200) à une position centrale théorique prédéfinie dans la fente (122) du dispositif de soufflage (120) par déplacement du dispositif de soufflage dans le plan transversalement au dispositif de transport de la bande métallique,
    en ce que la position de mise en place du rouleau de correction (160) ou la modification de celle-ci est saisie par un dispositif de saisie du rouleau de correction (165), et
    en ce que le déplacement du dispositif de soufflage (120) a lieu en tenant compte de la position de mise en place du rouleau de correction (160).
  2. Procédé selon la revendication 1, caractérisé en ce que l'écart entre la position réelle de la bande métallique (200) et la position centrale théorique est saisi dans la fente (122) du dispositif de soufflage (120), et
    en ce que le déplacement du dispositif de soufflage (120) a lieu en fonction de l'écart saisi.
  3. Procédé selon la revendication 1, caractérisé par la stabilisation de la bande métallique (200) après avoir quitté le conteneur d'enduction (110) et le dispositif de soufflage (120) à l'aide d'un dispositif de stabilisation électromagnétique (140) disposé au-dessus du dispositif de soufflage.
  4. Dispositif (100) pour revêtir une bande métallique (200) d'un matériau de revêtement (300), comportant :
    un conteneur d'enduction (110) avec un rouleau de correction (160), le conteneur d'enduction (110) pouvant être rempli d'un matériau de revêtement liquide, pour faire passer la bande métallique (200) à travers et le matériau de revêtement adhérant à la surface de la bande métallique à revêtir (200), et
    un dispositif de soufflage (120) disposé après le conteneur d'enduction (110) dans le dispositif de transport (R) de la bande métallique avec une fente (122) pour faire passer la bande métallique (200) à travers et pour souffler des parties excédentaires du matériau d'enduction encore liquide (300) de la surface de la bande métallique,
    un capteur de bombement (154) pour saisir le bombement réel de la bande métallique (200) après avoir quitté le conteneur d'enduction (110), et
    un dispositif de commande (190) pour mettre en place le rouleau de correction (160) contre la bande métallique (200), lorsque la mesure du bombement réel dépasse une valeur de seuil de bombement admissible prédéfinie,
    caractérisé par
    un dispositif de réglage (180) pour régler la position réelle de la bande métallique (200) sur la position centrale théorique prédéfinie (128) dans la fente (122) du dispositif de soufflage (122) par déplacement du dispositif de soufflage (120) à l'aide d'un dispositif de déplacement (130) dans un plan transversalement au dispositif de transport de la bande métallique, et
    un dispositif de saisie de rouleau de correction (165) pour la saisie de la position de mise en place du rouleau de correction (160) ou la modification de celle-ci,
    le déplacement du dispositif de soufflage (120) ayant lieu en tenant compte de la position de mise en place du rouleau de correction (160).
  5. Dispositif selon la revendication 4, caractérisé en ce qu'un capteur de position (152) est prévu pour saisir l'écart de la position réelle de la bande métallique (200) par rapport à la position centrale théorique (128) lors du passage à travers la fente (122) du dispositif de soufflage (120) en raison de la mise en place du rouleau de correction contre la bande métallique, et
    en ce que le déplacement du dispositif de soufflage (120) a lieu en fonction de l'écart saisi.
  6. Dispositif selon l'une quelconque des revendications 4 ou 5, caractérisé par un dispositif de stabilisation électromagnétique (140) disposé au-dessus du dispositif de soufflage pour stabiliser la bande métallique (200) après avoir quitté le conteneur d'enduction (110) et le dispositif de soufflage (120).
EP15777639.4A 2014-11-21 2015-09-24 Procédé et dispositif pour revêtir une bande métallique Active EP3221487B1 (fr)

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PL15777639T PL3221487T3 (pl) 2014-11-21 2015-09-24 Sposób i urządzenie do powlekania taśmy metalowej
SI201530605T SI3221487T1 (sl) 2014-11-21 2015-09-24 Postopek in naprava za preslojevanje kovinskega traka
HRP20190156TT HRP20190156T1 (hr) 2014-11-21 2019-01-23 Postupak i uređaj za oblaganje metalne trake

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DE102014223819 2014-11-21
DE102014225516.3A DE102014225516B3 (de) 2014-11-21 2014-12-11 Verfahren und Vorrichtung zum Beschichten eines Metallbandes
PCT/EP2015/071963 WO2016078805A1 (fr) 2014-11-21 2015-09-24 Procédé et dispositif pour revêtir une bande métallique

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DE102016222224A1 (de) 2016-02-23 2017-08-24 Sms Group Gmbh Verfahren zum Betreiben einer Beschichtungseinrichtung zum Beschichten eines Metallbandes sowie Beschichtungseinrichtung
CN107876301A (zh) * 2017-11-28 2018-04-06 绩溪山合机械有限公司 一种震动式链条均匀上油装置
DE102018215100A1 (de) 2018-05-28 2019-11-28 Sms Group Gmbh Vakuumbeschichtungsanlage, und Verfahren zum Beschichten eines bandförmigen Materials
PL3643804T3 (pl) * 2018-10-24 2023-08-14 John Cockerill S.A. Sposób kontroli jednorodności masy powłoki w przemysłowej linii galwanizacyjnych
CN114150141B (zh) * 2021-11-04 2023-11-17 本钢板材股份有限公司 一种过时效段炉辊凸度的控制方法

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DE102014225516B3 (de) 2016-03-31
WO2016078805A1 (fr) 2016-05-26
KR20170068578A (ko) 2017-06-19
MX2017006592A (es) 2018-01-26
CN107208242B (zh) 2019-12-13
CA2967713C (fr) 2019-02-12
EP3221487A1 (fr) 2017-09-27
CA2967713A1 (fr) 2016-05-26
AU2015348886A1 (en) 2017-06-15
SI3221487T1 (sl) 2019-03-29
HRP20190156T1 (hr) 2019-03-22
JP2017535679A (ja) 2017-11-30
ZA201703035B (en) 2018-05-30
DK3221487T3 (en) 2019-03-11
PT3221487T (pt) 2019-02-25
CN107208242A (zh) 2017-09-26
AU2015348886B2 (en) 2018-10-11
BR112017008652A2 (pt) 2017-12-19
HUE041647T2 (hu) 2019-05-28
BR112017008652B1 (pt) 2021-04-13
US10190202B2 (en) 2019-01-29
PL3221487T3 (pl) 2019-05-31
RU2662276C1 (ru) 2018-07-25
LT3221487T (lt) 2019-02-11
ES2707976T3 (es) 2019-04-08
US20170268092A1 (en) 2017-09-21
MY190045A (en) 2022-03-23

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