EP1857568B1 - Dispositif de revêtement et méthode pour fabrication d'une bande métallique partiellement revêtue sur une face - Google Patents

Dispositif de revêtement et méthode pour fabrication d'une bande métallique partiellement revêtue sur une face Download PDF

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Publication number
EP1857568B1
EP1857568B1 EP07009198A EP07009198A EP1857568B1 EP 1857568 B1 EP1857568 B1 EP 1857568B1 EP 07009198 A EP07009198 A EP 07009198A EP 07009198 A EP07009198 A EP 07009198A EP 1857568 B1 EP1857568 B1 EP 1857568B1
Authority
EP
European Patent Office
Prior art keywords
coating
strip
roller
metal
metal strip
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.)
Not-in-force
Application number
EP07009198A
Other languages
German (de)
English (en)
Other versions
EP1857568A1 (fr
Inventor
Leszek Poletek
Hermann Sturm
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of EP1857568A1 publication Critical patent/EP1857568A1/fr
Application granted granted Critical
Publication of EP1857568B1 publication Critical patent/EP1857568B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C23C2/34—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
    • C23C2/003—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
    • C23C2/006—Pattern or selective deposits
    • C23C2/0064—Pattern or selective deposits using masking layers
    • 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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/22—Removing excess of molten coatings; Controlling or regulating the coating thickness by rubbing, e.g. using knives, e.g. rubbing solids

Definitions

  • the present invention relates to a coating system for metal strips and a method for producing one-sided partially coated metal strips by means of the coating system.
  • Partially hot-dip galvanized metal strips are known in which on one or both sides of the surface a longitudinally extending metallic coating is applied.
  • the coating may consist of several strips which are interrupted in the longitudinal direction at certain intervals.
  • the tape is pretreated with flux before applying the coating and heated.
  • the molten metal is applied via an opening of a metering unit on the passing band and stripped of excess molten metal.
  • the supply of the molten metal is controlled in a targeted manner via the metering unit.
  • Such coated tapes can be used in the electronics industry. Coatings of different thickness consist for example of pure tin or tin alloys, which are applied to strips of copper or copper alloys.
  • the steel strips are provided from a melt supply with a coating of zinc, zinc alloy, aluminum or aluminum alloy for the production of corrosion-resistant surfaces.
  • the metal strip is not immersed in the melt bath, but guided directly over the melt surface along. In doing so, the strip is placed over the melt surface in a position where the surface tension and wetting properties of the molten coating metal allow a meniscus to be formed on the surface of the melt bath. Due to the formed meniscus, the band is in direct contact with the melt bath and is thus continuously provided with a coating on one side of the band. A partial, ie partial coating of the strip surface is not provided.
  • the invention has the object of developing a coating system for partially coated on one side metal strips.
  • the invention is based on the consideration that the metal strip to be partially coated is guided together with the masking tape over the coating roller.
  • liquid tin or a tin alloy is applied to a metal strip of copper or a copper alloy as the metal layer.
  • the masking tape has recesses at the locations where the coating is to be applied to the metal strip. Excess tin is stripped off over several steps prior to separation of metal band and mask band.
  • the mask band is endless. Such over different clamping and guide rollers circulating belts are particularly efficient from a production point of view.
  • a cleaning device with which the residues of the coating material can be removed. For non-wetting materials, however, additional cleaning can be dispensed with.
  • the metal strip to be coated is deflected around the coating roll and clamped with the required strip tension to ensure that no liquid coating material reaches the back of the metal strip.
  • the masking tape is biased with the required tension, so that no coating material penetrates into the space between the metal strip and masking tape.
  • the feed rates of the metal strip and the mask band are correspondingly coordinated so that no relative movement between the metal strip and masking tape is formed.
  • the particular advantage is that a one-sided coating on metal strips can be produced reliably and with little effort.
  • the excess coating material is deliberately removed in order to set the desired layer thicknesses.
  • the coating system according to the invention is suitable for producing tin-containing surface layers on strip material made of copper or copper alloys.
  • the coating roll has a uniform cylindrical shape along its entire length.
  • the strip material lies on the entire surface of the roll surface.
  • the surface of the coating roller may be concave or tapered towards the center of the roll. With concave curvature, the edge regions of the metal strip are pressed more strongly onto the roll surface, whereby an additional seal at the strip edges is achieved.
  • a conical shape acts, in which the radius of the coating roll as seen from both ends decreases continuously towards the middle of the roll.
  • concave coating roll In essence, only those areas have a curvature of the roller surface at which the coating roller comes into contact with the belt edges.
  • the surface of the coating roll is slightly convexly curved only in the region of the resting strip edges and has a cylindrical shape in the further course in the direction of the roll center.
  • the coating roll has a slightly smaller radius towards the center of the roll than the roll outer edge.
  • the roller surface is formed at the respective edges of the metal strip against a rest on the rest just flat belt surface a slight bulge, which seals under tensile stress, the marginal areas particularly well against the melt. Penetration of liquid coating material into a gap formed between the coating roll and the strip material can thus be reliably prevented.
  • the surface of the coating roll consists of a material which is not wettable by the coating material.
  • Gray iron or ceramic material for example aluminum oxide, silicon nitride or graphite, is particularly suitable in connection with tin-containing coating materials.
  • the surface of the masking tape may be made of a material that is not wettable by the coating material.
  • the mask tape itself can be made of a solid material or coated with material on the surface, which is not wetted by the coating material.
  • the application device may comprise a slot-shaped coating nozzle extending in the axial direction to the coating roller.
  • liquid tin is applied as a coating material above the coating roller, ie immediately after the masking tape merges with the metal strip. Excess tin can then also be stripped or blown off over several stages in order to set the desired layer thickness.
  • the applicator may comprise a melt bath into which the coating roll is partially immersed.
  • the metal strip to be coated on one side is guided tightly against the coating roll through the melt bath.
  • the axis of the coating roller immersed in the melt bath may be arranged above the melt surface.
  • the coating roller is only partially brought into contact with the melt, wherein the metal strip to be coated and the masking tape must lie on one another only in this contact region.
  • the coating roll is arranged only near the melt surface, but so close that a coating is applied by means of the surface tension of the melt bath and the strip surface to be coated. However, it is necessary to ensure that the melt contact does not break off. If necessary, in this case, apart from the metal strip to be coated, the masking tape must also be partially or completely wetted by the melt of the coating material.
  • the application device can have a stripping device.
  • the stripping device may be a stripping element and / or a blow-off nozzle.
  • the coating material usually applied in excess to the metal strip to be coated.
  • tin-containing metal layers often have the desired final thicknesses of the coating well below the thickness of the originally applied material. Excess tin is stripped over the separation of metal strip and masking tape over several stages and set the layer thickness targeted.
  • At least the application device can be arranged in a closed housing with protective gas in order to avoid oxide formation, in particular on the uncoated band side.
  • Fig. 1 shows a coating system 1, in which the partially coated metal strip 20 is guided together with the masking tape 10 on the coating roller 2.
  • the applicator includes a coating die 3 extending in the axial direction of the coating roll 2 Fig. 1 can be seen, for example, liquid tin as a coating material above the coating roller 2, so immediately after the masking tape 10 merges with the metal strip 20, applied.
  • the masking tape 10 has recesses at the locations where the coating is to be applied to the metal strip 20.
  • the masking tape 20 is made of a flexible material which is not wetted by the coating material.
  • the metal strip 10 to be coated is guided over the coating roller 2 and clamped by a deflection roller as a band guide 21 with the required strip tension, to ensure that no liquid coating material reaches the back of the metal strip 20.
  • the running direction L of the metal strip 20 and the masking tape 10 is indicated by an arrow.
  • the masking tape 10 is biased with the required train by a deflection tension roller 12, so that no coating material can penetrate into the space between the metal strip 20 and masking tape 10.
  • the feed rates of the metal strip 20 and the masking tape 10 are matched by means of the driving masking tape roll 11 according to each other, that there is no relative movement between the metal strip 20 and masking tape 10.
  • the masking tape 10 is endlessly guided over the driving masking tape roll 11, the deflection tensioning roller 12 and two further masking tape deflection rollers 13. In a non-melt wettable material of the masking tape 10, an additional cleaning device is unnecessary.
  • the scraper device provided for this purpose consists of a scraper element 5 and a blow-off nozzle 6.
  • Fig. 2 is a further example of a coating system 1 with melt 4 shown.
  • a coating die 3 the one-sided tin-plating with a coating roll 2 dipping into a melt bath 4 is now carried out.
  • This consists of solid ceramic material, whereby no coating material adheres to the surface of the coating roller 2.
  • the coating roller 2 only partially immersed in the melt 4.
  • the metal strip 20 to be coated on one side is guided tightly against the coating roll 2 through the melt bath 4 in order to prevent unwanted penetration of the molten metal on the rear side of the metal strip 20.
  • coating unit 1 shown does not dip the axis of the coating roller 2 in the melt 4 a.
  • the coating roller 2 is only partially brought into contact with the melt, wherein the metal strip 20 to be coated and the masking strip 10 lie on one another only in this contact region, in the region of the stripping element 5 and the blow-off nozzle 6.
  • processing units such as a chemical or mechanical cleaning device of the strip surface before coating.
  • process units can also follow, such as a furnace for the temperature treatment of the applied metal layer.

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

Claims (10)

  1. Installation de revêtement (1) pour bandes de métal, caractérisée par,
    - un rouleau de revêtement (2),
    - un dispositif d'application (3, 4, 5, 6) pour le matériau revêtement,
    - un bande de masque (10) menée et guidée par-dessus le rouleau de revêtement (2) au moyen de rouleaux de renvoi (11, 12, 13), la bande de masque (10) étant guidée sans fin,
    - un guidage de bande (21) pour la bande de métal (20) circulant sur le rouleau de revêtement (2).
  2. Installation de revêtement selon la revendication 1, caractérisée en ce que la surface du rouleau de revêtement (2) est d'une forme concave ou conique en direction du centre du rouleau.
  3. Installation de revêtement selon la revendication 1 ou la revendication 2, caractérisée en ce qu'au moins la surface du rouleau de revêtement (2) est constituée d'un matériau qui ne peut être mouillé par le matériau de revêtement.
  4. Installation de revêtement selon l'une des revendications 1 à 3, caractérisée en ce qu'au moins la surface de la bande de masque (10) est constituée d'un matériau qui ne peut être mouillé par le matériau de revêtement.
  5. Installation de revêtement selon l'une des revendications 1 à 4, caractérisée en ce que le dispositif d'application (3, 5, 6) comprend une buse de revêtement (3) en forme de fente, qui s'étend en direction axiale vers le rouleau de revêtement (2).
  6. Installation de revêtement selon l'une des revendications 1 à 4, caractérisée en ce que le dispositif d'application (4, 5, 6) comprend un bain de fusion (4) dans lequel plonge, en partie, le rouleau de revêtement (2).
  7. Installation de revêtement selon la revendication 6, caractérisée en ce que l'axe du rouleau de revêtement (2) plongeant dans le bain de fusion (4), est situé au-dessus de la surface supérieure du bain de fusion.
  8. Installation de revêtement selon l'une des revendications 1 à 7, caractérisée en ce que le dispositif d'application (3, 4, 5, 6) comprend un élément racleur (5) et/ou une buse de soufflage (6).
  9. Installation de revêtement selon l'une des revendications 1 à 8, caractérisée en ce qu'au moins le dispositif d'application (3, 4, 5, 6) est agencé dans un carter fermé renfermant un gaz protecteur.
  10. Procédé pour la fabrication de bandes de métal (20) revêtues partiellement sur une face, au moyen d'une installation de revêtement (1) selon l'une des revendications 1 à 9, caractérisé en ce que
    - l'on mène et guide une bande de métal (20) par-dessus un rouleau de revêtement (2),
    - l'on recouvre la surface de la bande, opposée au rouleau de revêtement (2), avec une bande de masque (10) guidée sans fin,
    - l'on applique un revêtement sur la bande de métal (20) dans la zone recouverte, et
    - l'on élimine le matériau de revêtement en excès jusqu'à l'épaisseur de couche souhaitée, avant de retirer la bande de masque (10) de la surface de la bande de métal (20).
EP07009198A 2006-05-18 2007-05-08 Dispositif de revêtement et méthode pour fabrication d'une bande métallique partiellement revêtue sur une face Not-in-force EP1857568B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006023282A DE102006023282B4 (de) 2006-05-18 2006-05-18 Beschichtungsanlage für Metallbänder und Verfahren zur Herstellung einseitig partiell beschichteter Metallbänder

Publications (2)

Publication Number Publication Date
EP1857568A1 EP1857568A1 (fr) 2007-11-21
EP1857568B1 true EP1857568B1 (fr) 2011-02-16

Family

ID=38283034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009198A Not-in-force EP1857568B1 (fr) 2006-05-18 2007-05-08 Dispositif de revêtement et méthode pour fabrication d'une bande métallique partiellement revêtue sur une face

Country Status (4)

Country Link
US (1) US20070269602A1 (fr)
EP (1) EP1857568B1 (fr)
AT (1) ATE498703T1 (fr)
DE (2) DE102006023282B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206839A1 (de) 2014-04-09 2015-10-15 Sms Group Gmbh Verfahren und Vorrichtung zum Beschichten eines sich in Bandlaufrichtung bewegenden Metallbands sowie Anlage zum Herstellen von länglichen metallischen Walzgütern

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106466667A (zh) * 2016-11-19 2017-03-01 张红伟 刮刀用涂布工艺

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US4082868A (en) * 1976-03-18 1978-04-04 Armco Steel Corporation Method for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102014206839A1 (de) 2014-04-09 2015-10-15 Sms Group Gmbh Verfahren und Vorrichtung zum Beschichten eines sich in Bandlaufrichtung bewegenden Metallbands sowie Anlage zum Herstellen von länglichen metallischen Walzgütern

Also Published As

Publication number Publication date
EP1857568A1 (fr) 2007-11-21
DE102006023282B4 (de) 2010-04-15
ATE498703T1 (de) 2011-03-15
DE102006023282A1 (de) 2007-11-22
US20070269602A1 (en) 2007-11-22
DE502007006489D1 (de) 2011-03-31

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