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WO2001051681A2 - Lustrous metal surfaces - Google Patents

Lustrous metal surfaces Download PDF

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Publication number
WO2001051681A2
WO2001051681A2 PCT/EP2001/000232 EP0100232W WO0151681A2 WO 2001051681 A2 WO2001051681 A2 WO 2001051681A2 EP 0100232 W EP0100232 W EP 0100232W WO 0151681 A2 WO0151681 A2 WO 0151681A2
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WO
WIPO (PCT)
Prior art keywords
coating
metal
coated surface
fluorescent
producing
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.)
Ceased
Application number
PCT/EP2001/000232
Other languages
German (de)
French (fr)
Other versions
WO2001051681A3 (en
Inventor
Peter JÜLICHER
Markus Dahlhaus
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.)
C+C COURS GmbH
Herbert Schmidt Oberflachentechnik & Co KG GmbH
Original Assignee
C+C COURS GmbH
Herbert Schmidt Oberflachentechnik & Co KG 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 C+C COURS GmbH, Herbert Schmidt Oberflachentechnik & Co KG GmbH filed Critical C+C COURS GmbH
Priority to AU28462/01A priority Critical patent/AU2846201A/en
Publication of WO2001051681A2 publication Critical patent/WO2001051681A2/en
Publication of WO2001051681A3 publication Critical patent/WO2001051681A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/53—Treatment of zinc 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
    • C23C2/04—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
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • 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
    • C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
    • C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium

Definitions

  • the invention relates to an object with a coated surface, the
  • Coating either consists of metal or is formed by a metal coating with a conversion layer.
  • the invention further relates to a method for producing such an object.
  • Objects made of metal would oxidize (rust) in the untreated state and thus unsuitable for use and unsightly.
  • Numerous methods are therefore known by which the surface of the metal objects is treated or coated. This changes the surface condition so that corrosion can be avoided or delayed. This also changes the color of the metal object.
  • These processes include the electroplating processes, chemical processes and oxidation processes, such as the anodization of aluminum.
  • Coatings are generally intended to change the physical or chemical surface properties of materials in a favorable sense, be it that they should only be given metallic shine for decorative purposes, or that they have technically important properties such as solderability, electrical conductivity, Resistance to abrasion and wear, corrosion resistance, etc. or a combination of these properties must be imparted.
  • the metal layers can be treated chemically.
  • a passivation solution e.g. Can contain Cr EH or Cr VI
  • the metal layers are made further corrosion-resistant.
  • Coating type of this conversion layer different surface colors appear: blue, yellow, olive and black, which are also associated with different properties.
  • Chromated zinc forms e.g. a colorable layer that can also be used for identification.
  • the anodic oxidation consists in an electrical treatment of aluminum in an acid bath, which anodizes an oxide layer.
  • the surfaces can still be sealed or painted with an organic polymer layer.
  • Numerous other coating processes are also known, such as vacuum evaporation, cathodic and anodic dip coating, etc.
  • Cathodic deposition of metals and dispersed solids for the production of composite materials is also known.
  • powdered SiC dispersed in the solution so that it coexists with the metal, e.g. Nickel, can deposit on the surface.
  • the metal e.g. Nickel
  • SiC in particular causes a higher degree of hardness Surface.
  • dyes or self-lubricating components can also be dispersed in the solution.
  • wear protection layers are e.g. in the case of uniform tools or injection molding tools, by applying an electrodeposited intermediate layer under the actual protective layer.
  • the intermediate layer contains microcapsules that are filled with fluorescent substances. Special sensors detect these substances as soon as they are ablated or the like. are released and trigger a signal.
  • the invention has for its object to improve the visibility of metal objects in the dark.
  • the object is achieved in that the surface contains visible fluorescent or phosphorescent material. This makes them shine
  • the objects with fluorescent material shine when illuminated with light of certain wavelengths.
  • the coated surface preferably contains nickel or zinc.
  • the coating can then be applied by means of an electroplating process.
  • the fluorescent or phosphorescent material can be in shape of pigments, for example based on aluminum, can be introduced into the electrolyte solution. The pigments are then stored in the surface coating during the treatment.
  • a microporous or microcracked layer can be applied to a galvanically applied layer
  • Chrome layer or noble metal layer from e.g. Gold or silver can be applied galvanically.
  • the fluorescent or phosphorescent pigments are then visible through the micropores or microcracks.
  • Conversion layer containing substances are applied. This conversion layer is usually applied chemically. Here, too, the pigments are introduced into the chemical solution and are stored in the coating.
  • the conversion layer can contain microcracks, micropores or the like, through which the phosphor is visible.
  • the coated surface can comprise the oxide of this metal, which is produced electrically.
  • the anodization of metals such as aluminum, titanium or magnesium is particularly suitable for this.
  • the pigments are introduced into the solution during the oxidation process or after the oxidation process and are stored in the coating. The layer is then sealed.
  • the coating is carried out by vacuum evaporation of the object.
  • Embodiments of the invention are the subject of the dependent claims. Some exemplary embodiments of the invention are described below. Description of the embodiments
  • a metal object is chromated.
  • the object is first cleaned and degreased so that it is free of grease and oxide.
  • anodic degreasing is finally carried out in an electrolytic degreasing bath, pickled in dilute hydrochloric acid (1:10) and then galvanized.
  • the galvanizing is done galvanically in a zinc solution. After the galvanizing, the goods are rinsed and before the actual one
  • the passivation solution contains chromium (I ⁇ I) chloride and sodium nitrate (NaNO 3 ).
  • the object At room temperature (20 ° C) the object is placed in the chromate solution for an exposure time between 60 and 120 seconds. Depending on the type of immersion of the object, a drum rotation of 6 to 12 revolutions per minute or a goods movement of 3-4 m per minute is required. However, the solution can also be kept in motion by blowing in air at 2 to 10 m 3 per hour and m 2 bath surface. Pigments of a fluorescent material are finely dispersed in the bath. These pigments, like the conversion layer, attach to the object and thus form a fluorescent surface coating of the object.
  • a brass object is coated with nickel.
  • the object is also cleaned and degreased.
  • the object is then immersed as a cathode in a nickel electrolyte.
  • a voltage of approximately 4 V is applied. This leads to the deposition of a nickel layer on the brass.
  • the phosphorescent pigments contained in the bath are embedded in the layer of nickel, causing the layer to glow in the dark.
  • the invention can be used as a function aid, for example for door handles, lock cylinders, openings for emergency exits or signs for emergency exits. It can also be used as decoration, for example in discotheques, for the housing of mobile telephones and the like.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The invention relates to an object with a coated surface, said coating is either made from a metal, or from a metal coating with a conversion layer, whereby the surface contains a visibly fluorescent or phosphorescent material. The coated surface can contain one or several of the following elements: nickel, zinc, chromium, gold, silver, ruthenium, palladium or copper. Said surface, however, can also contain brass, phosphate, nickel, copper or gold. The coated surface can contain a metal oxide. The metal can be aluminium, titanium or magnesium. In a method for the production of said object, the coating is applied by means of a galvanic or chemical method. The coating can also be applied by anodisation or by vacuum coating. The fluorescent or phosphorescent material is applied in the form of microcapsules in the solution, or is in the form of a pigment and applied as a suspension in the solution.

Description

Patentanmeldung Patent application

Leuchtende MetalloberflächenLuminous metal surfaces

Technisches GebietTechnical field

Die Erfindung betrifft einen Gegenstand mit einer beschichteten Oberfläche, wobei dieThe invention relates to an object with a coated surface, the

Beschichtung entweder aus Metall besteht oder von einer Metallbeschichtung mit einer Konversionsschicht gebildet ist. Die Erfindung betrifft ferner ein Verfahren zur Herstellung eines solchen Gegenstands.Coating either consists of metal or is formed by a metal coating with a conversion layer. The invention further relates to a method for producing such an object.

Gegenstände aus Metall würden in unbehandeltem Zustand oxidieren (rosten) und damit gebrauchsuntauglich und unansehnlich. Es sind daher zahlreiche Verfahren bekannt, nach denen die Oberfläche der Metallgegenstände behandelt oder beschichtet wird. Dadurch wird die Oberflächenbeschaffenheit so geändert, daß Korrosion vermieden oder verzögert werden kann. Auch die Farbe des Metallgegenstandes wird dadurch geändert.Objects made of metal would oxidize (rust) in the untreated state and thus unsuitable for use and unsightly. Numerous methods are therefore known by which the surface of the metal objects is treated or coated. This changes the surface condition so that corrosion can be avoided or delayed. This also changes the color of the metal object.

Zu diesen Verfahren gehören die galvanotechnischen Verfahren, chemische Verfahren und Oxidationsverfahren, wie etwa die Anodisierung von Aluminium.These processes include the electroplating processes, chemical processes and oxidation processes, such as the anodization of aluminum.

Stand der TechnikState of the art

Bei der Galvanotechnik werden metallische Schichten auf Werkstoffoberflächen durch die Reduktion der Ionen einer Elektrolytlösung abgeschieden. Mit den dabei erhaltenen Überzügen wird in der Regel beabsichtigt, die physikalischen oder chemischen Oberflächeneigenschaften von Werkstoffen in günstigem Sinn zu verändern, sei es, daß ihnen lediglich zu dekorativen Zwecken metallischer Glanz verliehen werden soll, oder aber, daß ihnen technisch wichtige Eigenschaften, wie Lötbarkeit, elektrische Leitfähigkeit, Widerstand gegen Abrieb und Verschleiß, Korrosionsbeständigkeit usw. oder eine Kombination dieser Eigenschaften vermittelt werden müssen.In electroplating, metallic layers are deposited on material surfaces by reducing the ions in an electrolyte solution. With the received Coatings are generally intended to change the physical or chemical surface properties of materials in a favorable sense, be it that they should only be given metallic shine for decorative purposes, or that they have technically important properties such as solderability, electrical conductivity, Resistance to abrasion and wear, corrosion resistance, etc. or a combination of these properties must be imparted.

In einem weiteren Schritt können die Metallschichten chemisch behandelt werden. Durch Einbringen in eine Passivierungslösung, die z.B. Cr EH oder Cr VI enthalten kann, werden die Metallschichten weiter korrosionsbeständig gemacht. Dabei können je nachIn a further step, the metal layers can be treated chemically. By introducing it into a passivation solution, e.g. Can contain Cr EH or Cr VI, the metal layers are made further corrosion-resistant. Depending on

Beschichungsart dieser Konversionsschicht verschiedene Oberflächenfarben auftreten: blau, gelb, oliv und schwarz, mit denen auch unterschiedliche Eigenschaften verbunden sind. Chromati ertes Zink bildet z.B. eine einfärbbare Schicht, die auch zur Kennzeichnung verwendet werden kann.Coating type of this conversion layer different surface colors appear: blue, yellow, olive and black, which are also associated with different properties. Chromated zinc forms e.g. a colorable layer that can also be used for identification.

Beim Phosphatieren werden - ebenfalls chemisch - in Wasser schwerlösliche Metallphosphatüberzüge auf Metallen hergestellt.During phosphating, water-soluble metal phosphate coatings on metals are also produced chemically.

Die anodische Oxidation besteht im Gegensatz zu den galvanischen und chemischen Verfahren in einer elektrischen Behandlung von Aluminium in einem sauren Bade, wodurch anodisch eine Oxidschicht erzielt wird.In contrast to the galvanic and chemical processes, the anodic oxidation consists in an electrical treatment of aluminum in an acid bath, which anodizes an oxide layer.

Die Oberflächen können weiterhin mit einer organischen Polymerschicht versiegelt oder lackiert werden. Es sind auch zahlreiche weitere Beschichtungs verfahren bekannt, wie die Vakuumbedampfung, kathodische und anodische Tauchlackierung etc.The surfaces can still be sealed or painted with an organic polymer layer. Numerous other coating processes are also known, such as vacuum evaporation, cathodic and anodic dip coating, etc.

Es ist femer die kathodische Coabscheidung von Metallen und dispergierten Feststoffen zur Herstellung von Composite- Werkstoffen bekannt. Dabei wird z.B. pulverfÖrmiges SiC in der Lösung dispergiert, so daß es sich zusammen mit dem Metall, z.B. Nickel, auf der Oberfläche abscheiden kann. Durch die Feststoffe werden die Eigenschaften derCathodic deposition of metals and dispersed solids for the production of composite materials is also known. Here, e.g. powdered SiC dispersed in the solution so that it coexists with the metal, e.g. Nickel, can deposit on the surface. The properties of the

Beschichtung verändert. So bewirkt insbesondere SiC einen höheren Härtegrad der Oberfläche. Es können auch je nach Anwendungsgebiet Farbstoffe oder selbstschmierende Komponenten in der Lösung dispergiert werden.Coating changed. SiC in particular causes a higher degree of hardness Surface. Depending on the field of application, dyes or self-lubricating components can also be dispersed in the solution.

In einer speziellen Anwendung aus dem Stand der Technik werden Verschleißschutzschichten z.B. bei Uniformwerkzeugen oder Spritzgusswerkzeugen kontrolliert, indem unter die eigentliche Schutzschicht eine galvanisch abgeschiedene Zwischenschicht aufgebracht wird. Die Zwischenschicht enthält Mikrokapseln, die mit fluoreszierenden Stoffen gefüllt sind. Spezielle Sensoren detektieren diese Substanzen, sobald diese durch Abtrag o.a. freigesetzt werden und lösen ein Signal aus.In a special application from the prior art, wear protection layers are e.g. in the case of uniform tools or injection molding tools, by applying an electrodeposited intermediate layer under the actual protective layer. The intermediate layer contains microcapsules that are filled with fluorescent substances. Special sensors detect these substances as soon as they are ablated or the like. are released and trigger a signal.

Es sind viele Anwendungen bekannt, bei denen Metallgegenstände im Dunkeln verwendet werden und ertastet werden müssen, wenn eine entsprechende Beleuchtung nicht vorgesehen ist. Eine solche Beleuchtung ist aufwendig und nicht immer zweckmäßig. Zu solchen Anwendungen gehören z.B. Türgriffe, Schließzylinder für Türschlösser, Gehäuse für Mobiltelefone, Anzeigen für Notausgänge und dergleichen. Es gibt weiterhin Anwendungen, bei denen dekorative Gegenstände auch im Dunkeln sichtbar bleiben sollen, wie z.B. in Discotheken oder an Fahrzeugen.Many applications are known in which metal objects are used in the dark and must be touched when appropriate lighting is not provided. Such lighting is complex and not always useful. Such applications include e.g. Door handles, lock cylinders for door locks, housings for mobile phones, displays for emergency exits and the like. There are also applications in which decorative objects should remain visible even in the dark, e.g. in discos or on vehicles.

Offenbarung der ErfindungDisclosure of the invention

Der Erfindung liegt die Aufgabe zugrunde, die Sichtbarkeit von Metallgegenständen im Dunkeln zu verbessern.The invention has for its object to improve the visibility of metal objects in the dark.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß, die Oberfläche sichtbar fluoreszierendes oder phosphoreszierendes Material enthält. Dadurch leuchten dieAccording to the invention the object is achieved in that the surface contains visible fluorescent or phosphorescent material. This makes them shine

Gegenstände mit phosphoreszierendem Material im Dunkeln und können auf diese Weise ohne zusätzliche Beleuchtung gesehen werden. Die Gegenstände mit fluoreszierendem Material leuchten bei Beleuchtung mit Licht bestimmter Wellenlängen.Objects with phosphorescent material in the dark and can be seen in this way without additional lighting. The objects with fluorescent material shine when illuminated with light of certain wavelengths.

Je nach Beschichtungsverfahren enthält die beschichtete Oberfläche vorzugsweise Nickel oder Zink. Die Beschichtung kann dann mittels eines galvanotechnischen Verfahrens aufgebracht werden. Das fluoreszierende oder phosphoreszierende Material kann in Form von Pigmenten z.B. auf Aluminium-Basis in die Elektrolytlösung eingebracht werden. Die Pigmente lagern sich dann während der Behandlung in der Oberflächenbeschichtung ein.Depending on the coating process, the coated surface preferably contains nickel or zinc. The coating can then be applied by means of an electroplating process. The fluorescent or phosphorescent material can be in shape of pigments, for example based on aluminum, can be introduced into the electrolyte solution. The pigments are then stored in the surface coating during the treatment.

Auf eine galvanisch aufgebrachte Schicht kann noch eine mikroporige oder mikrorissigeA microporous or microcracked layer can be applied to a galvanically applied layer

Chromschicht oder Edelmetall-Schicht aus z.B. Gold oder Silber galvanisch aufgebracht werden. Durch die Mikroporen oder Mikrorisse sind dann die fluoreszierenden oder phosphoreszierenden Pigmente sichtbar.Chrome layer or noble metal layer from e.g. Gold or silver can be applied galvanically. The fluorescent or phosphorescent pigments are then visible through the micropores or microcracks.

Durch Passivierung oder Chromatieren kann eine Chrom, Phosphat oder vergleichbarePassivation or chromating can result in a chromium, phosphate or similar

Substanzen enthaltende Konversionsschicht aufgebracht werden. Diese Konversionsschicht wird üblicherweise chemisch aufgebracht. Auch hier werden die Pigmente in die chemische Lösung eingebracht und lagern sich in die Beschichtung ein.Conversion layer containing substances are applied. This conversion layer is usually applied chemically. Here, too, the pigments are introduced into the chemical solution and are stored in the coating.

Wird eine solche Konversionsschicht auf eine galvanisch hergestellte Schicht aufgebracht, in welcher der fluoreszierende oder phosphoreszierende Stoff enthalten ist, so kann die Konversionsschicht Microrisse, Mikroporen oder dergleichen enthalten, durch welche der Leuchtstoff sichtbar wird.If such a conversion layer is applied to a galvanically produced layer in which the fluorescent or phosphorescent substance is contained, the conversion layer can contain microcracks, micropores or the like, through which the phosphor is visible.

Bei metallischen Gegenständen kann die beschichtete Oberfläche das Oxid dieses Metalls umfassen, welches elektrisch hergestellt wird. Hierfür eignet sich besonders die Anodisierung von Metallen wie Aluminium, Titan oder Magnesium. Die Pigmente werden während des Oxidationsprozesses oder nach dem Oxidationsprozess in die Lösung eingebracht und lagern sich in die Beschichtung ein. Die Schicht wird dann versiegelt.In the case of metallic objects, the coated surface can comprise the oxide of this metal, which is produced electrically. The anodization of metals such as aluminum, titanium or magnesium is particularly suitable for this. The pigments are introduced into the solution during the oxidation process or after the oxidation process and are stored in the coating. The layer is then sealed.

In einer weiteren Aus führungs form der Erfindung erfolgt die Beschichtung durch Vakuumbedampfung des Gegenstandes.In a further embodiment of the invention, the coating is carried out by vacuum evaporation of the object.

Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Nachstehend sind einige Ausfuhrungsbeispiele der Erfindung beschrieben. Beschreibung der AusführungsbeispieleEmbodiments of the invention are the subject of the dependent claims. Some exemplary embodiments of the invention are described below. Description of the embodiments

In einem ersten Ausführungsbeispiel wird ein Metallgegenstand chromatiert. Dazu wird der Gegenstand zunächst gereinigt und entfettet, damit er fett- und oxidfrei ist. Nach dem Abkoch- und/oder Beizentfetten in den entsprechenden Bädem wird in einem elektrolytischen Entfettungsbad zuletzt anodisch entfettet, in verdünnter Salzsäure (1 :10) dekapiert und hiernach verzinkt. Die Verzinkung erfolgt galvanisch in einer Zink- Lösung. Nach der Verzinkung wird die Ware gespült und vor dem eigentlichenIn a first embodiment, a metal object is chromated. To do this, the object is first cleaned and degreased so that it is free of grease and oxide. After boiling and / or pickling degreasing in the corresponding baths, anodic degreasing is finally carried out in an electrolytic degreasing bath, pickled in dilute hydrochloric acid (1:10) and then galvanized. The galvanizing is done galvanically in a zinc solution. After the galvanizing, the goods are rinsed and before the actual one

Chromatieren in eine 0,3%ige Salpeterlösung getaucht. Der pH- Wert von 1,8 bis 2,2 wird mittels pH-Meter oder mit geeigneten Indikatorstäbchen gemessen und mit Salpetersäure nach tiefen und Natronlauge nach hohen Werten eingestellt.Chromate dipped in a 0.3% nitrate solution. The pH value from 1.8 to 2.2 is measured using a pH meter or with suitable indicator sticks and adjusted to low values with nitric acid and high sodium hydroxide solution.

Die Passivierungslösung enthält Chrom (IΙI)-Chlorid und Natriumnitrat (NaNO3). BeiThe passivation solution contains chromium (IΙI) chloride and sodium nitrate (NaNO 3 ). at

Raumtemperatur (20°C) wird der Gegenstand für eine Expositionszeit zwischen 60 und 120 Sekunden in die Chromatlösung eingebracht. Je nach Eintauchart des Gegenstands ist eine Trommelumdrehung von 6 bis 12 Umdrehungen pro Minute oder eine Warenbewegung von 3-4m pro Minute erforderlich. Die Lösung kann aber auch mittels Lufteinblasung mit 2 bis 10 m3 pro Stunde und m2 Badoberfläche in Bewegung gehalten werden. In dem Bad sind Pigmente eines fluoreszierenden Materials fein dispergiert. Diese Pigmente lagern sich ebenso wie die Konversionsschicht an dem Gegenstand an und bilden somit eine fluoreszierende Oberflächenbeschichtung des Gegenstands.At room temperature (20 ° C) the object is placed in the chromate solution for an exposure time between 60 and 120 seconds. Depending on the type of immersion of the object, a drum rotation of 6 to 12 revolutions per minute or a goods movement of 3-4 m per minute is required. However, the solution can also be kept in motion by blowing in air at 2 to 10 m 3 per hour and m 2 bath surface. Pigments of a fluorescent material are finely dispersed in the bath. These pigments, like the conversion layer, attach to the object and thus form a fluorescent surface coating of the object.

In einem weiteren Ausführungsbeispiel wird ein Messinggegenstand mit Nickel beschichtet. Dazu wird der Gegenstand ebenfalls gereinigt und entfettet. Der Gegenstand wird dann als Kathode in einen Nickel-Elektrolyten getaucht. Es wird eine Spannung von etwa 4 V angelegt. Dieses führt zum Abscheiden einer Nickelschicht auf dem Messing. Die im Bad enthaltenen phosphoreszierenden Pigmente lagern sich in der Schicht aus Nickel ein und bewirken so ein Leuchten der Schicht im Dunkeln. Die Erfindung läßt sich anwenden als Funktionshilfe z.B. für Türklinken, Schließzylinder, Öffnungen für Notausgänge oder Hinweiszeichen für Notausgänge. Sie lässt sich weiterhin anwenden als Dekoration z.B. in Discotheken, für Gehäuse von Mobiltelefonen und dergleichen. In a further exemplary embodiment, a brass object is coated with nickel. The object is also cleaned and degreased. The object is then immersed as a cathode in a nickel electrolyte. A voltage of approximately 4 V is applied. This leads to the deposition of a nickel layer on the brass. The phosphorescent pigments contained in the bath are embedded in the layer of nickel, causing the layer to glow in the dark. The invention can be used as a function aid, for example for door handles, lock cylinders, openings for emergency exits or signs for emergency exits. It can also be used as decoration, for example in discotheques, for the housing of mobile telephones and the like.

Claims

Patentansprüche claims 1. Gegenstand mit einer beschichteten Oberfläche, wobei die Beschichtung entweder aus Metall besteht oder von einer Metallbeschichtung mit einer Konversionsschicht gebildet ist, dadurch gekennzeichnet, daß die Oberfläche sichtbar fluoreszierendes oder phosphoreszierendes Material enthält.1. Object with a coated surface, wherein the coating either consists of metal or is formed by a metal coating with a conversion layer, characterized in that the surface contains visible fluorescent or phosphorescent material. 2. Gegenstand nach Anspruch 1, dadurch gekennzeichnet, daß die beschichtete Oberfläche eines oder mehrere der folgenden Elemente enthält: Nickel, Zink, Chrom, Gold, Silber, Ruthenium, Palladium, Kupfer.2. Article according to claim 1, characterized in that the coated surface contains one or more of the following elements: nickel, zinc, chromium, gold, silver, ruthenium, palladium, copper. 3. Gegenstand nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die beschichtete Oberfläche Messing enthält.3. Object according to claim 1 or 2, characterized in that the coated surface contains brass. 4. Gegenstand nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die beschichtete Oberfläche Phosphat, Nickel, Kupfer oder Gold enthält.4. Article according to one of claims 1 to 3, characterized in that the coated surface contains phosphate, nickel, copper or gold. 5. Gegenstand nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Gegenstand aus Metall besteht und die beschichtete Oberfläche ein Metalloxid enthält.5. Object according to one of claims 1 to 4, characterized in that the object consists of metal and the coated surface contains a metal oxide. 6. Gegenstand nach Anspruch 5, dadurch gekennzeichnet, daß das Metall Aluminium, Titan oder Magnesium ist. 6. Article according to claim 5, characterized in that the metal is aluminum, titanium or magnesium. 7. Verfahren zur Herstellung eines Gegenstandes nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Beschichtung mittels eines galvanotechnischen Verfahrens aufgebracht wird.7. A method for producing an object according to one of claims 1 to 3, characterized in that the coating is applied by means of an electroplating process. 8. Verfahren zur Herstellung eines Gegenstandes nach Anspruch 4, dadurch gekennzeichnet, daß die Beschichtung chemisch aufgebracht wird.8. A method for producing an article according to claim 4, characterized in that the coating is applied chemically. 9. Verfahren zur Herstellung eines Gegenstandes nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, daß die Beschichtung durch Anodisieren hergestellt wird.9. A method for producing an article according to one of claims 5 or 6, characterized in that the coating is produced by anodizing. 10. Verfahren zur Herstellung eines Gegenstandes nach Anspruch 1, dadurch gekennzeichnet, daß die Beschichtung durch Vakuumbedampfung aufgebracht wird.10. A method for producing an article according to claim 1, characterized in that the coating is applied by vacuum evaporation. 1 1. Verfahren zur Herstellung eines Gegenstandes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das fluoreszierendes oder phosphoreszierendes Material in Form von Mikrokapseln in die Lösung eingebracht wird.1 1. A method for producing an article according to one of claims 1 to 6, characterized in that the fluorescent or phosphorescent material is introduced into the solution in the form of microcapsules. 12. Verfahren zur Herstellung eines Gegenstandes nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das fluoreszierendes oder phosphoreszierendes Material in Form von Pigmenten vorliegt und als Suspension in die Lösung eingebracht wird. 12. A method for producing an object according to one of claims 1 to 6, characterized in that the fluorescent or phosphorescent material is in the form of pigments and is introduced into the solution as a suspension.
PCT/EP2001/000232 2000-01-11 2001-01-09 Lustrous metal surfaces Ceased WO2001051681A2 (en)

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FR2836229A1 (en) * 2002-02-15 2003-08-22 Lilian Martinez Control of the integrity and/or degradation of a coating involves using a coating that has detectable luminescence under electromagnetic excitation
EP1870489A1 (en) 2006-04-19 2007-12-26 Ropal AG Method to obtain a corrosion-resistant and shiny substrate
WO2008092528A1 (en) * 2007-02-01 2008-08-07 Henkel Ag & Co. Kgaa Pretreated metal with luminescent pigments
DE102007046925A1 (en) 2007-09-28 2009-04-09 Ropal Ag Method for producing a metallic and/or non-metallic substrate, which is protected against corrosion in regions and/or is shiny, comprises provisioning a substrate or a carrier layer having a surface, which is coated in regions
WO2012141626A1 (en) * 2011-04-12 2012-10-18 Alusera Ab Method for manufacturing of an object having phosphorescent properties
WO2014016497A1 (en) * 2012-07-25 2014-01-30 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for marking a metal substrate by means of the incorporation of inorganic luminescent particles
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US8993119B2 (en) 2006-04-19 2015-03-31 Ropal Europe Ag Process for producing a corrosion-protected and high-gloss substrate
EP1870489A1 (en) 2006-04-19 2007-12-26 Ropal AG Method to obtain a corrosion-resistant and shiny substrate
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DE102007046925A1 (en) 2007-09-28 2009-04-09 Ropal Ag Method for producing a metallic and/or non-metallic substrate, which is protected against corrosion in regions and/or is shiny, comprises provisioning a substrate or a carrier layer having a surface, which is coated in regions
WO2012141626A1 (en) * 2011-04-12 2012-10-18 Alusera Ab Method for manufacturing of an object having phosphorescent properties
US9458549B2 (en) 2011-04-12 2016-10-04 Alusera Ab Method for manufacturing of an object having phosphorescent properties
WO2014016497A1 (en) * 2012-07-25 2014-01-30 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for marking a metal substrate by means of the incorporation of inorganic luminescent particles
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US20150104590A1 (en) * 2012-07-25 2015-04-16 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method For Marking A Metal Substrate By Means Of The Incorporation Of Inorganic Luminescent Particles
JP2015524516A (en) * 2012-07-25 2015-08-24 コミッサリア ア レネルジ アトミック エ オー エネルジス アルテルナティヴスＣｏｍｍｉｓｓａｒｉａｔ Ａ Ｌ‘Ｅｎｅｒｇｉｅ Ａｔｏｍｉｑｕｅ Ｅｔ Ａｕｘ Ｅｎｅｒｇｉｅｓ Ａｌｔｅｒｎａｔｉｖｅｓ Method for marking metal substrates by incorporating inorganic luminescent particles
EP2752504A1 (en) 2013-01-08 2014-07-09 ROPAL Europe AG Method for producing a corrosion resistant, glossy, metallic coated substrate, the metallic coated substrate, and its use

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