EP3504352A1 - Procédé et dispositif d'enduction pour revêtir une bande métallique - Google Patents

Procédé et dispositif d'enduction pour revêtir une bande métallique

Info

Publication number
EP3504352A1
EP3504352A1 EP17754711.4A EP17754711A EP3504352A1 EP 3504352 A1 EP3504352 A1 EP 3504352A1 EP 17754711 A EP17754711 A EP 17754711A EP 3504352 A1 EP3504352 A1 EP 3504352A1
Authority
EP
European Patent Office
Prior art keywords
magnets
belt
band
strip
tape
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.)
Granted
Application number
EP17754711.4A
Other languages
German (de)
English (en)
Other versions
EP3504352B1 (fr
Inventor
Holger Behrens
Lutz Kümmel
Thomas Daube
Gernot Richter
Babak TALEB-ARAGHI
Pascal Fontaine
Michael Zielenbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fontaine Engineering und Maschinen GmbH
Original Assignee
Fontaine Engineering und Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fontaine Engineering und Maschinen GmbH filed Critical Fontaine Engineering und Maschinen GmbH
Priority to PL17754711T priority Critical patent/PL3504352T3/pl
Publication of EP3504352A1 publication Critical patent/EP3504352A1/fr
Application granted granted Critical
Publication of EP3504352B1 publication Critical patent/EP3504352B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C23C2/04—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
    • 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
    • C23C2/34—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 band by means of a coating device.
  • the belt first passes through a coating container with a liquid coating agent, for.
  • a Abstreifdüsen adopted for stripping excess zinc from the surface of the metal strip.
  • the belt typically passes through a belt stabilizer having a plurality of magnets on both broad sides of the belt.
  • zinc layer thicknesses vary over both the length and 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 value. In order to reduce the consumption of zinc, there is a desire to keep the fluctuation range as low as possible.
  • the European patent contemplates preferably using a coordinated layer thickness band vibration, band shape and band positioning control.
  • the vibration control also called band stabilization device dampens the vibrations of the band. It comprises magnet pairs, which are preferably arranged in pairs over the bandwidth and are used as actuators for positioning the tape. Each pair of magnets is preferably provided with a distance measurement sensor and a regulator equipped so that, depending on occurring vibration modes, a force varying over the bandwidth is exerted on the belt.
  • the band shape and band position control damps the slow movements of the band by changing the average force that acts on the band across the band.
  • each magnet pair is individually controlled in particular electrically by means of the regulator.
  • the individual controllers are coordinated by means of a higher-level controller, which takes into account the interactions between the controllers.
  • the position of at least one magnet is variable such that its distance from the band is variable. The smaller the distance of the magnet to the band, the less current or electrical energy is required to apply a desired force to the band.
  • the invention has for its object to show in a known method and a coating device for coating a tape an alternative way to generate a moment in the band.
  • This object is achieved by the method claimed in claim 1.
  • This method is characterized in that the driving of the magnets of the belt stabilizing device is carried out by at least one of the magnets is displaced in dependence on the shape control difference in the width direction of the tape relative to at least one of the magnets on the opposite broad side of the tape in a traveling position.
  • paired arrangement of the individual magnets is resolved in juxtaposition on both broad sides of the tape and the individual magnets of a (former) magnet pair are arranged offset in the width direction of the tape to each other.
  • band and “metal band” are used synonymously.
  • 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 band.
  • downstream means: in the transport direction of the metal strip.
  • upstream means opposite to the transport direction of the metal strip.
  • the actual position of the band within the wiper device can be determined, in addition to the shape control difference and a position-control difference as a difference between the actual position of the tape and a predetermined target Position of the band can be determined in the region of the Abstreifdüsen issued, and the displacement of the at least one magnet in the width direction of the belt relative to the magnets on the opposite broad side of the tape also in dependence on the position control difference so that the tape from its actual position is transferred to the predetermined desired position.
  • a pair of magnets or a plurality of pairs of magnets are arranged stationary, wherein the two magnets each face a pair of magnets on both broad sides of the band.
  • the term symmetrically means that the magnet pair 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 magnet pair, according to the invention, at least some of the magnets adjacent to the stationary magnet pair can be displaced or moved in the width direction of the band.
  • two further magnets which form a pair of magnets, are displaced in the region of the left or the right edge of the band such that the magnet of this pair of magnets, which has the greater distance from the edge of the band, with its center at the height of the edge is displaced and that the magnet of the magnetic pair, which the has smaller distance to the edge of the tape, - compared to the magnet with the greater distance to the edge of the tape - a distance far to the center of the metal strip - seen in the width direction - offset towards arranged.
  • This procedure is recommended for both the left and the right edge of the metal strip.
  • the juxtaposition of the two individual magnets of the magnet pair is resolved by these are offset in the width direction relative to each other.
  • the magnets in the width direction of the tape are moved so that they face at least approximately a trough the actual shape of the tape.
  • oppositely directed tensile forces act on the metal strip spaced apart from each other, thus producing a desired bending moment for breaking the bends 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 desired shape - each assuming the same position of the metal strip - greater than zero, in particular That is, the distance between the magnet and the metal strip is larger in the case of a wave trough than if the metal strip had its desired shape, then the trough can be pulled by a tensile force applied by the magnet or "bumped" by a applied by at least two magnets bending moment on the metal strip.
  • a symmetrical process of the magnets in the width direction is recommended for the middle of the band.
  • the displacement of the magnets in the width direction can be done depending on the available number of magnets. With a larger available number of magnets, a finer resolution of the force on the belt is possible, whereby the waveform can be compensated even more accurately.
  • the displacement of the magnets in the width direction can also be effected as a function of the force which can be generated by the individual magnets on the belt. This is appropriate in light of the fact that the moment generated in the band is the product of power and distance. against this background, a particular desired amount of torque may be generated by optionally setting either the generated force, or the distance of the magnets from each other, or both.
  • the magnets are advantageously designed in the form of electromagnetic coils, because the coils allow a variable adjustment of the force on the metal strip as a function of the injected current.
  • the position and the shape of the magnets can also be done by a suitable application or feeding the coil with suitable currents.
  • at least one of the coils is fed with such a current that the band due to the.
  • the positioning and adjustment of the correction roller offers a further possibility for influencing the shape and position of the metal strip in the wiper device.
  • the correction roller upstream of the Abstreifdüsen is positioned and adjusted to ensure that the belt stabilization device is operated only within their operating limits.
  • the magnets in the band stabilization device need not be operated with currents outside their operating limits in order to realize the correction.
  • the remaining need for correction to adapt the actual position to the desired position and / or to adapt the actual shape of the band to its desired shape then takes place according to the invention by suitable displacement of individual magnets in the width direction and by feeding these magnets with a respective suitable electricity.
  • the correction roller can be moved appropriately not only before moving the magnets, but also during a running coating process, as described in the previous paragraph. Also, the correction roller can not only be positioned and adjusted to preset the position and shape of the band. Rather, the correction roller can also be automatically positioned and employed so that when exceeding predetermined force limits the band in the band stabilizer means the forces are again in a target area. This is especially necessary for product changes, ie when changing to belts with different thicknesses or different materials with different yield strengths. Also, the correction roller can be automatically moved so that there are defined directions of action of the forces on the magnet to ensure a one-sided or monotonous force application.
  • the movement positions of the magnets in the width direction, the currents, which are applied to the coils and / or the position and the employment of the correction roller are stored in a database.
  • the storage is preferably classified according to the steel grade of the strip, the yield strength of the strip, the thickness of the strip, the width of the strip, the temperature of the strip as it passes through the coating device and / or the temperature of the coating agent in the coating container as it passes through the strip , By storing these data, better starting values can be determined in future coating processes, in particular by the travel positions of the magnets in the width direction of the new belts to be coated.
  • FIG. 1 shows a coating device
  • Figure 4 illustrates an inventive method of magnets in the width direction of the tape.
  • Figure 1 shows a coating device 100 for coating a metal strip 200.
  • the coating device 100 consists of a coating container 1 10, with liquid coating agent 1 12, z. 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 roll 150.
  • the metal strip 200 is then passed past a correction roller 140 and subsequently passed through the slot of a wiper device 120 and further through the slot of a belt stabilizer 130.
  • the belt is preferably acted on both sides with an air flow in order to strip off excess liquid coating agent.
  • the belt stabilizing device 130 consists of a plurality of magnets 132, which are arranged on both broad sides of the belt or the belt stabilization device. These magnets 132 are typically formed in the form of electromagnetic coils.
  • the coating device 100 further comprises a control device 160 for actuating an actuator 136 for moving or moving the magnets 132 according to the invention in the width direction R of the strip and for adjusting the current I, which is fed into the individual magnets.
  • the control device may have an output for driving an actuator 146 for positioning and adjusting the correction roller 140. The actuation of the actuators 136, 146 and the adjustment of the current for the magnets takes place as a function of measurement signals of a traversing in the width direction of the tape distance sensor.
  • the distance sensor detects the distribution of the distance of the metal strip in the width direction with respect to a reference position, for. B. the gap or slot of the belt stabilization device. In this way, both the actual shape and / or the actual position of the metal strip is detected.
  • a separate shape sensor 170 for detecting the actual shape of the strip and a separate positional sage 180 for detecting the actual position of the metal strip may also be provided.
  • the determination of the actual position and / or the actual shape of the strip takes place within the strip stabilizing device 130 by measuring the distance of the strip to the magnets of the strip stabilizing device over the width of the strip.
  • Figure 2 shows various examples of possible unwanted actual shapes of the metal strip 200, specifically a U, an S and a W-shaped corrugated metal strip.
  • FIG. 2 shows the desired nominal shape of the metal strip 200 in the lower area. Accordingly, the metal strip is designed to be straight or flat in its desired state.
  • FIG. 3 shows various undesired actual layers of the metal strip 200 in the slot 122 of the wiping device 120.
  • the various actual layers are shown in dashed lines while the desired position SL is shown with a solid line.
  • the desired position is characterized in that the metal strip 200 has a uniform distance to the sides of the slot 122.
  • the metal strip in a first undesired actual position 11, can be rotated or pivoted ⁇ relative to the desired position SL by an angle ⁇ .
  • a second undesired actual position of the metal strip 12 of the metal strip is that the metal strip is moved parallel to the target position SL, so that the metal strip has no more equal distances to the broad sides of the slot.
  • a third typical undesired actual position for the metal strip is that the metal strip according to the layer 13 is displaced in the longitudinal direction relative to the desired position SL, so that its distances to the narrow sides of the slot 122 of the stripping device are no longer equal.
  • FIG. 4 illustrates the method according to the invention.
  • the actual shape is compared with a predetermined desired shape of the band, typically as shown in Figure 2 below.
  • the deviations in the form form a shape-control difference and the magnets 132 of the band stabilizing device 130 are driven in response to the shape-control difference so that the actual shape of the band is converted into the desired shape of the band.
  • at least some of the magnets 132 in the width direction R of the Bandes 200 relocated relative to the magnets on the respective opposite broad side of the belt in a traveling position. These movement positions are shown by way of example in FIG.
  • the actual position of the belt 200 within the wiper device 120 can also be determined. Undesirable characteristics of this actual position have already been presented above with reference to FIG.
  • a position-control difference can also be determined analogously as the difference between the actual position of the strip and a predetermined desired position SL in the region of the stripping nozzle device 120.
  • the displacement of the at least one magnet 132-A in the width direction R of the belt 200 relative to the magnets 132-B on the opposite broad side of the belt 200 can accordingly also take place as a function of the position control difference such that the belt is in its actual position in FIG the predetermined target position SL is transferred.
  • FIG. 4 shows a specific exemplary embodiment for possible travel positions.
  • a pair of magnets 132-3-A; 132-3-B stationary arranged in the middle of the belt 200.
  • the two magnets of this magnet pair face each other on both broad sides A, B of the band 200.
  • the other coils or magnets are not arranged in the form of pairs of magnets, the individual magnets 132-1, -2, -4, -5 are directly opposite.
  • These other magnets are displaced in the width direction R of the band relative to magnets on the other band side or arranged offset.
  • two further magnets 132-1 -A and 132-1 -B form a left magnet pair which is displaced in the region of the left edge of the belt 200 in such a way that the magnet 132-1 -B of the left magnet pair has the greater distance to the edge of the band having its center displaced at the level of the left edge and that magnet 132-1 -A of the left magnet pair having the smaller distance di2 to the left edge of the band, - opposite to the magnet 132-1 -B with the greater distance you to the edge of the tape - a little way to the stationary magnet pair 132-3- A, 132-3-B, d. H. offset to the center of the band is arranged.
  • a right pair of magnets 132-5-A, 132-5-B may be provided, which is displaced in the region 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 r i is shifted to the right edge of the belt 200 with its center shifted to the level of the right edge. Furthermore, then that partial magnet 132-5-A of the right magnet pair, which has the smaller distance d r 2 to the right edge of the band, - compared to the magnet with the greater distance to the edge of the tape - a little way to the center of the belt 200th offset. In this case, the tensile forces F generated in FIG. 4 by the partial coils, which act on the belt 200 at a distance from one another, cause the same Bending moment M in the clockwise direction on the belt 200. As a result, the waveform shown in Figure 4 can be compensated on the right edge.
  • the remaining magnets 132-2-A, 132-2-B, 132-4-A and 132-4-B, which belong to neither the right nor the left, nor the middle magnet pair, in the width direction R of the belt 200 are preferably so method that they face each other at least approximately each a trough in the actual shape of the band, as shown in Figure 4 and whereby the above-described advantageous effect is achieved by the generation of bending moments.
  • the symmetrical arrangement of the magnets shown in FIG. 4, in particular the symmetrical arrangement with respect to the fixed magnet pair 132-3, results in particular in the case of a symmetrical undesired actual shape of the band during said displacement of the magnets in the width direction -A, 132-3-B.

Landscapes

  • 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)

Abstract

L'invention concerne un procédé pour revêtir une bande métallique à l'aide d'un dispositif d'enduction. À l'intérieur du dispositif d'induction, la bande traverse d'abord un récipient d'enduction comprenant un agent de revêtement liquide et ensuite un dispositif à buses de raclage permettant de racler l'agent de revêtement superflu de la surface de la bande. Après le dispositif à buses de raclage, la bande traverse typiquement un dispositif de stabilisation de bande comprenant d'une multitude d'aimants sur les côtés de la largeur de la bande. Une différence de réglage de forme est déterminée sous la forme d'une différence entre une forme réelle déterminée de la bande et une forme de consigne prédéfinie de la bande, et cette différence de réglage de forme est utilisée pour commander les aimants du dispositif de stabilisation de bande afin de transformer la forme réelle de la bande en la forme de consigne. Comme possibilité alternative pour la génération d'un couple, en particulier d'un couple de flexion dans la bande, les aimants du dispositif de stabilisation de bande (130) sont placés dans une position de déplacement dans le sens de la largeur R de la bande (200) par rapport aux aimants sur le côté de la largeur de la bande opposé respectivement en fonction de la différence de réglage de forme.
EP17754711.4A 2016-08-26 2017-08-17 Procédé et appareil de revêtement d'une bande metallique Active EP3504352B1 (fr)

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PL17754711T PL3504352T3 (pl) 2016-08-26 2017-08-17 Sposób i urządzenie powlekające do powlekania metalowej taśmy

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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 (fr) 2016-08-26 2017-08-17 Procédé et dispositif d'enduction pour revêtir une bande métallique

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EP3504352A1 true EP3504352A1 (fr) 2019-07-03
EP3504352B1 EP3504352B1 (fr) 2020-06-24

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US (2) US11255009B2 (fr)
EP (1) EP3504352B1 (fr)
JP (1) JP6733047B2 (fr)
KR (1) KR102240149B1 (fr)
CN (1) CN109790613B (fr)
AU (1) AU2017317465B2 (fr)
BR (1) BR112019003801B1 (fr)
CA (1) CA3034334C (fr)
DE (1) DE102016222230A1 (fr)
ES (1) ES2812818T3 (fr)
HU (1) HUE052043T2 (fr)
MX (1) MX2019002188A (fr)
MY (1) MY191187A (fr)
PL (1) PL3504352T3 (fr)
PT (1) PT3504352T (fr)
RU (1) RU2713523C1 (fr)
WO (1) WO2018036908A1 (fr)
ZA (1) ZA201900688B (fr)

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DE102022100820B3 (de) * 2022-01-14 2023-02-09 Emg Automation Gmbh Stabilisierungsvorrichtung und Sensoraufbau für fortlaufend bewegte Metallbänder

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CN109790613B (zh) 2021-08-31
PT3504352T (pt) 2020-09-01
JP2019525008A (ja) 2019-09-05
KR20190039164A (ko) 2019-04-10
WO2018036908A1 (fr) 2018-03-01
KR102240149B1 (ko) 2021-04-14
US11255009B2 (en) 2022-02-22
PL3504352T3 (pl) 2020-11-30
CA3034334A1 (fr) 2018-03-01
CA3034334C (fr) 2022-04-26
AU2017317465A1 (en) 2019-03-07
BR112019003801B1 (pt) 2022-09-20
JP6733047B2 (ja) 2020-07-29
EP3504352B1 (fr) 2020-06-24
RU2713523C1 (ru) 2020-02-05
BR112019003801A2 (pt) 2019-05-21
ES2812818T3 (es) 2021-03-18
US20220049339A1 (en) 2022-02-17
CN109790613A (zh) 2019-05-21
US20190194791A1 (en) 2019-06-27
MX2019002188A (es) 2019-06-06
HUE052043T2 (hu) 2021-04-28
AU2017317465B2 (en) 2019-10-10
ZA201900688B (en) 2019-10-30
DE102016222230A1 (de) 2018-03-01

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