EP3504352B1 - Verfahren und beschichtungseinrichtung zum beschichten eines metallbandes - Google Patents

Verfahren und beschichtungseinrichtung zum beschichten eines metallbandes Download PDF

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Publication number
EP3504352B1
EP3504352B1 EP17754711.4A EP17754711A EP3504352B1 EP 3504352 B1 EP3504352 B1 EP 3504352B1 EP 17754711 A EP17754711 A EP 17754711A EP 3504352 B1 EP3504352 B1 EP 3504352B1
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EP
European Patent Office
Prior art keywords
strip
magnets
shape
magnet
actual
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
EP17754711.4A
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German (de)
English (en)
French (fr)
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EP3504352A1 (de
Inventor
Holger Behrens
Lutz Kümmel
Thomas Daube
Gernot Richter
Babak TALEB-ARAGHI
Pascal Fontaine
Michael Zielenbach
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Fontaine Engineering und Maschinen GmbH
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Fontaine Engineering und Maschinen GmbH
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Priority to PL17754711T priority Critical patent/PL3504352T3/pl
Publication of EP3504352A1 publication Critical patent/EP3504352A1/de
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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
    • C23C2/14—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
    • 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
    • C23C2/003—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
    • C23C2/14—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
    • 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
    • C23C2/51—Computer-controlled implementation
    • 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
    • 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
    • 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
    • C23C2/5245—Position of the substrate for reducing vibrations of the substrate

Definitions

  • the invention relates to a method for coating a metal strip with the aid of a coating device.
  • the belt first passes through a coating container with a liquid coating agent, e.g. B. zinc, and subsequently a stripping nozzle device for stripping excess zinc from the surface of the metal strip.
  • a coating container with a liquid coating agent, e.g. B. zinc
  • a stripping nozzle device for stripping excess zinc from the surface of the metal strip.
  • the belt typically passes through a belt stabilization device with a plurality of magnets on both broad sides of the belt.
  • the zinc layer thicknesses vary both over the length and over the width of the strip.
  • the layer thickness can change by up to 10 g per m 2 . Since minimum layer thicknesses must be guaranteed, the average layer thickness must be adjustable so that all areas of the strip are above the limit. In order to reduce zinc consumption, there is a desire to keep the fluctuation range as small as possible.
  • the European patent specification also pursues this goal EP 1 794 339 B1 .
  • the European patent specification preferably uses a coordinated layer thickness-strip vibration, strip shape and strip positioning control.
  • the vibration control also called the belt stabilization device, dampens the vibrations of the belt. It comprises magnet pairs, which are preferably arranged in pairs over the bandwidth and are used as actuators for positioning the band. Each pair of magnets is preferably with a sensor for distance measurement and a controller equipped so that a force that varies across the bandwidth is exerted on the belt as a function of the forms of vibration that occur.
  • the belt shape and belt position controller dampens the slow movements of the belt by changing the average force that acts on the belt across the belt.
  • Each pair of magnets is controlled individually, in particular electrically, with the aid of the controller.
  • the individual controllers are coordinated with the help of a higher-level controller, which takes into account the interactions between the controllers.
  • the position of at least one magnet can be changed such that its distance from the band can be changed. The closer the magnet is to the tape, the less current or electrical energy is required to exert a desired force on the tape.
  • document WO2016 / 078803 A discloses a method and an apparatus for coating a metal strip, the metal strip continuing after the wiping nozzle device through an electromagnetic stabilization device in order to keep the fluctuation range of the strip small.
  • the same subject is in the documents JPH 1029827 A and WO2009 / 039949 A disclosed.
  • the object of the invention is to provide an alternative possibility for generating a moment in the strip in a known method and a coating device for coating a strip.
  • This object is achieved by the method claimed in claim 1.
  • This method is characterized in that the control of the magnets of the belt stabilization device takes place in that at least one of the magnets, depending on the shape-control difference in the width direction of the belt, is displaced relative to at least one of the magnets on the opposite broad side of the belt and shifted into a travel position , where it faces at least approximately a trough in the actual shape of the tape.
  • the paired arrangement of the individual magnets known from the prior art in opposition to each other on both broad sides of the band is dissolved and the individual magnets of a (former) pair of magnets are arranged offset to one another in the width direction of the band. While the opposing forces of the two magnets act in a line and therefore do not generate any torque when the magnets are compared in pairs, the inventive offset of the individual coils of the (former) magnet pair in the width direction causes a distance between the forces acting in opposite directions, as a result of which a desired Moment in or on the tape is generated. In this way the counter-bending results and therefore wavy bands can be smoothed and converted into a flat band.
  • band and “metal band” are used interchangeably.
  • shift in the width direction includes any movement of the magnet in space as long as the movement has a component in the width direction of the metal strip.
  • downstream means: in the direction of transport of the metal strip.
  • upstream means against the direction of transport of the metal strip.
  • the actual position of the strip in addition to the actual shape, can also be determined within the scraper nozzle device.
  • a position / control difference can also be determined as the difference between the actual position of the strip and a predetermined target The position of the strip in the area of the stripping nozzle device can be determined, and the displacement of the at least one magnet in the width direction of the strip relative to the magnets on the opposite broad side of the strip can also take place as a function of the positional control difference so that the strip is in its actual position is transferred to the specified target position.
  • a magnet pair or a plurality of magnet pairs are arranged in a stationary manner symmetrically with respect to the center of the slot of the band stabilization device or the band - viewed in the width direction, the two magnets each facing one another on both broad sides of the band.
  • the term symmetrical means that the pair of magnets is arranged in the middle.
  • the stationary magnet pair or the stationary magnet pairs form a reference position. Relative to the at least one stationary pair of magnets, according to the invention at least some of the magnets adjacent to the stationary pair of magnets can be displaced or moved in the width direction of the band.
  • two further magnets which form a pair of magnets, can be shifted into the area of the left or right edge of the band in such a way that the magnet of this pair of magnets which is at a greater distance from the edge of the band is centered on the height of the edge and that the magnet of the magnet pair that the has a smaller distance to the edge of the band, - compared to the magnet with the greater distance to the edge of the band - a bit to the center of the metal band - seen in the width direction - is arranged offset.
  • This procedure is recommended for both the left and the right edge of the metal band. In this described procedure, too, the juxtaposition of the two individual magnets of the magnet pair is resolved by displacing them relative to one another in the width direction.
  • the magnets are moved in the width direction of the belt so that they are at least approximately opposite a trough of the actual shape of the belt.
  • oppositely directed tensile forces act on the metal strip at a distance from one another and thus generate a desired bending moment for reducing the curvatures or waveform in the strip.
  • wave trough describes the situation that the difference between the distance of a magnet to the metal strip in its actual shape and the distance of the magnet to the metal strip in its target shape - assuming the same position of the metal strip in each case - is greater than zero, in particular is maximum. This means that the distance between the magnet and the metal strip is larger in the case of a wave trough than if the metal strip were to have its desired shape.
  • the trough can then be applied by a tensile force exerted by the magnet or "bulged" onto the metal strip by a bending moment applied by at least two magnets.
  • the magnets can only exert tensile forces, no compressive forces on the metal strip.
  • the magnets can be moved in the width direction depending on the number of magnets available. With a larger number of magnets available, a finer resolution of the force acting on the tape is possible, whereby the waveform can be even more precisely balanced.
  • the magnets can also be shifted in the width direction depending on the force that can be generated by the individual magnets on the belt. This lends itself to the background that the moment generated in the tape is the product of strength and distance. Against this background, a certain desired magnitude of the moment can be generated by an optionally suitable setting of either the generated force or the distance of the magnets from one another or from both.
  • the magnets are advantageously designed in the form of electromagnetic coils because the coils allow the force on the metal strip to be set in a variable manner as a function of the current fed in.
  • the position and shape of the magnets can also be carried out by suitably applying or supplying the coils with suitable currents.
  • at least one of the coils is fed with such a current that the tape is due to the current-carrying coil acting on the band force is transferred to its target position in the middle of the stripping nozzle device and is stabilized there and / or that the actual shape of the band is adapted as well as possible to the target shape.
  • the positioning and adjustment of the correction roller also offer a further possibility of influencing the shape and the position of the metal strip in the stripping nozzle device.
  • the correction roller is positioned and adjusted upstream of the scraper nozzle device in such a way that it is ensured that the belt stabilization device is only operated within its operating limits.
  • the correction roller can be moved appropriately not only before moving the magnets, but also during an ongoing coating process - as described in the previous paragraph.
  • the correction roller can not only be positioned and adjusted to preset the position and shape of the belt. Rather, the correction roller can also be automatically positioned and adjusted so that when the predetermined force limits are exceeded the band in the band stabilization device the forces are again in a target area. This is particularly necessary when changing products, ie when changing to strips with different thicknesses or different materials with different yield strengths.
  • the correction roller can also be automatically moved so that there are defined directions of action of the forces on the magnets to ensure unilateral or monotonous force application.
  • Figure 1 shows a coating device 100 for coating a metal strip 200.
  • the coating device 100 consists of a coating container 110 which is coated with liquid coating agent 112, e.g. B. zinc is filled.
  • the metal strip 200 dips into the coating container and is deflected there in the liquid coating agent with the aid of a pot roller 150.
  • the metal strip 200 is then guided past a correction roller 140 and subsequently through the slot of a wiping nozzle device 120 and further subsequently through the slot of a belt stabilization device 130.
  • An air stream is preferably applied to the strip on both sides within the stripping nozzle device 120 in order to scrape off excess liquid coating agent.
  • the band stabilization device 130 consists of a plurality of magnets 132 which are arranged on both broad sides of the band or the band stabilization device. These magnets are 132 typically in the form of electromagnetic coils.
  • the coating device 100 further comprises a control device 160 for actuating an actuator 136 for displacing or moving the magnets 132 according to the invention in the width direction R of the strip and for setting the current I which is fed into the individual magnets.
  • the control device can have an output for actuating an actuator 146 for positioning and adjusting the correction roller 140.
  • the actuators 136, 146 are actuated and the current for the magnets is adjusted as a function of measurement signals from a distance sensor which traverses preferably in the width direction of the strip.
  • the distance sensor detects the distribution of the distance of the metal strip in the width direction with respect to a reference position, e.g. B. the gap or slit of the band stabilization device. In this way, both the actual shape and / or the actual position of the metal strip is recorded.
  • a separate shape sensor 170 for detecting the actual shape of the strip and a separate position sensor 180 for detecting the actual position of the metal strip can also be provided.
  • the actual position and / or the actual shape of the metal strip within the stripping nozzle device 120 is determined by measuring the position and / or the shape of the strip either between the stripping nozzle device 120 and the strip stabilizing device 130 or within the strip stabilizing device 130 or upstream of the strip stabilizing device 130 and by subsequently concluding from the actual position and / or the actual shape of the band within the stripping nozzle device from the respectively measured position and / or form of the band.
  • the actual position and / or the actual shape of the band within the band stabilization device 130 is determined by measuring the distance of the band from the magnets of the band stabilization device across the width of the band.
  • Figure 2 shows various examples of possible undesirable actual shapes of the metal strip 200, specifically a U, an S and a W-shaped metal strip.
  • the desired target shape of the metal strip 200 In the lower area shows Figure 2 on the other hand, the desired target shape of the metal strip 200. Accordingly, the metal strip is straight or flat in its target state.
  • Figure 3 shows various undesired actual positions of the metal strip 200 in the slot 122 of the scraper nozzle device 120.
  • the various actual positions are shown in broken lines, while the desired position SL is shown with a solid line.
  • the target position is characterized in that the metal strip 200 is evenly spaced from the sides of the slot 122.
  • the metal strip can be rotated or pivoted by an angle ⁇ in a first undesired actual position I1 relative to the target position SL.
  • a second undesired actual position of the metal strip I2 of the metal strip is that the metal strip is displaced in parallel with respect to the desired position SL, so that the metal strip no longer has the same distances from the broad sides of the slot.
  • a third typical undesirable actual position for the metal strip is that the metal strip is shifted in the longitudinal direction according to position I3 with respect to the desired position SL, so that its distances from the narrow sides of the slot 122 of the stripping device are no longer the same.
  • Figure 4 illustrates the method according to the invention.
  • the actual shape with a predetermined target shape of the tape, typically as in Figure 2 shown below.
  • the deviations in the shape form a shape-control difference and the magnets 132 of the strap stabilization device 130 are controlled depending on the shape-control difference in such a way that the actual shape of the strap is converted into the desired shape of the strap.
  • at least some of the magnets 132 in the width direction R of the Band 200 shifted relative to the magnets on the opposite broad side of the band in a travel position. These travel positions are in Figure 4 shown as an example.
  • a position-control difference can also be determined analogously as the difference between the actual position of the belt and a predetermined target position SL in the area of the wiper nozzle device 120.
  • the displacement of the at least one magnet 132-A in the width direction R of the band 200 relative to the magnets 132-B on the opposite broad side of the band 200 can accordingly also take place as a function of the positional control difference so that the band is in its actual position in the specified target position SL is transferred.
  • Figure 4 shows a special embodiment for possible travel positions. Specifically, in this embodiment - seen in the width direction R - in the middle of the band 200 a pair of magnets 132-3-A; 132-3-B stationary arranged. The two magnets of this pair of magnets face each other on both broad sides A, B of the band 200. In contrast, the other coils or magnets are not arranged in the form of magnet pairs, the individual magnets 132-1, -2, -4, -5 are directly opposite one another. These remaining magnets are displaced or offset in the width direction R of the band relative to magnets on the other side of the band.
  • two further magnets 132-1-A and 132-1-B form a left magnet pair, which is displaced into the area of the left edge of the band 200 in such a way that the magnet 132-1-B of the left magnet pair, which has the greater distance d I1 to the edge of the band has its center displaced at the level of the left edge and that that magnet 132-1-A of the left pair of magnets which has the smaller distance d I2 to the left edge of the band is opposite the magnet 132 -1-B with the greater distance d I1 to the edge of the band - a piece to the fixed magnet pair 132-3-A, 132-3-B, ie is offset to the middle of the band.
  • a right pair of magnets 132-5-A, 132-5-B can be provided, which is displaced into the area of the right edge of the band 200 in such a way that its partial magnet 132-5-B, which has the greater distance d r1 has shifted to the right edge of the band 200 with its center at the level of the right edge. Furthermore, the partial magnet 132-5-A of the right pair of magnets, which has the smaller distance d r2 from the right edge of the band, becomes a bit towards the center of the band 200 compared to the magnet with the greater distance from the edge of the band transferred.
  • the remaining magnets 132-2-A, 132-2-B, 132-4-A and 132-4-B which do not belong to either the right, left or middle pair of magnets, are preferably so in the width direction R of band 200 procedure that they are each at least approximately opposite a trough in the actual shape of the tape, as shown in Figure 4 is shown and by which the advantageous effect described above is achieved by generating the bending moments.

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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)
  • Computer Hardware Design (AREA)
  • Coating With Molten Metal (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP17754711.4A 2016-08-26 2017-08-17 Verfahren und beschichtungseinrichtung zum beschichten eines metallbandes Active EP3504352B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17754711T PL3504352T3 (pl) 2016-08-26 2017-08-17 Sposób i urządzenie powlekające do powlekania metalowej taśmy

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016216131 2016-08-26
DE102016222230.9A DE102016222230A1 (de) 2016-08-26 2016-11-11 Verfahren und Beschichtungseinrichtung zum Beschichten eines Metallbandes
PCT/EP2017/070872 WO2018036908A1 (de) 2016-08-26 2017-08-17 Verfahren und beschichtungseinrichtung zum beschichten eines metallbandes

Publications (2)

Publication Number Publication Date
EP3504352A1 EP3504352A1 (de) 2019-07-03
EP3504352B1 true EP3504352B1 (de) 2020-06-24

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DE102016222230A1 (de) 2018-03-01
US20190194791A1 (en) 2019-06-27
HUE052043T2 (hu) 2021-04-28
PT3504352T (pt) 2020-09-01
US20220049339A1 (en) 2022-02-17
BR112019003801A2 (pt) 2019-05-21
US11255009B2 (en) 2022-02-22
AU2017317465B2 (en) 2019-10-10
MX2019002188A (es) 2019-06-06
BR112019003801B1 (pt) 2022-09-20
CA3034334A1 (en) 2018-03-01
EP3504352A1 (de) 2019-07-03
AU2017317465A1 (en) 2019-03-07
KR20190039164A (ko) 2019-04-10
MY191187A (en) 2022-06-06
WO2018036908A1 (de) 2018-03-01
RU2713523C1 (ru) 2020-02-05
JP2019525008A (ja) 2019-09-05
CN109790613B (zh) 2021-08-31
PL3504352T3 (pl) 2020-11-30
ES2812818T3 (es) 2021-03-18
KR102240149B1 (ko) 2021-04-14
CN109790613A (zh) 2019-05-21
JP6733047B2 (ja) 2020-07-29
ZA201900688B (en) 2019-10-30

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