EP3017095B1 - Plaque métallique - Google Patents

Plaque métallique Download PDF

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Publication number
EP3017095B1
EP3017095B1 EP14749698.8A EP14749698A EP3017095B1 EP 3017095 B1 EP3017095 B1 EP 3017095B1 EP 14749698 A EP14749698 A EP 14749698A EP 3017095 B1 EP3017095 B1 EP 3017095B1
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EP
European Patent Office
Prior art keywords
oxide layer
region
metal plate
coin
subregion
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EP14749698.8A
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German (de)
English (en)
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EP3017095A1 (fr
Inventor
Helmut ANDEXLINGER
Paul FENNES
Alfred Gnadenberger
Robert Grill
Herbert WÄHNER
Heinz WALDHÄUSL
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Muenze Osterreich AG
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Muenze Osterreich AG
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Priority to PL14749698T priority Critical patent/PL3017095T3/pl
Publication of EP3017095A1 publication Critical patent/EP3017095A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/022—Anodisation on selected surface areas
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C21/00—Coins; Emergency money; Beer or gambling coins or tokens, or the like
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/26—Anodisation of refractory metals or alloys based thereon
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F1/00—Coin inlet arrangements; Coins specially adapted to operate coin-freed mechanisms
    • G07F1/06—Coins specially adapted to operate coin-freed mechanisms

Definitions

  • the invention relates to a metal plate according to the preamble of claim 1.
  • Such a metal plate is intended for a coin, for a part of a coin, for example pill or ring.
  • Coins are not only used as circulating coins, but also serve as collector coins and / or foams.
  • a foam is, for example, a medal, which is awarded as an award for special achievements, such as sporting nature.
  • Coins, in particular collector coins or foams must also meet high aesthetic requirements. For example, awarding medals at sporting events is an important media event, with the medals often being an important identification object of these events.
  • the appearance of a coin is often formed only by the embossing, ie a three-dimensional relief.
  • an aluminum surface having an interference layer is known as a coloring surface layer.
  • the interference layer has an aluminum oxide layer and a partially transparent layer applied thereon.
  • the interference layer may have local regions of predeterminably different color, which may be caused by a variation of the layer thickness of the aluminum oxide layer or the properties of the partially transparent layer.
  • WO 91/19649 A1 is a temperature monitor with an interference layer on a flexible substrate known. When a limit temperature is exceeded, the interference layer delaminates, thereby changing its color.
  • the object of the invention is therefore to provide a metal plate of the type mentioned, with which the mentioned disadvantages can be avoided, with which the aesthetic requirements is still guaranteed even at a greater distance, and which is durable and can be produced at the same time with little effort.
  • the oxide layer offers the advantage that its interference color has substantially the same gloss as a polished metal surface, and is not dull or darker than a pigment paint or finish, and therefore meets the highest aesthetic requirements. Furthermore, oxides are chemically slower than metals, causing the Coin does not migrate even after many years, the outer appearance, since there is no further unwanted oxidation.
  • the invention relates to a method for producing a two-colored optical element of a metal plate according to claim 10.
  • the object of this method is to produce a two-color optical element described above in a particularly simple and reliable manner.
  • the Fig. 1 to 6 show preferred embodiments of a metal plate 1 for a coin 2, for a pill 3 of a coin 2 or for a ring 4 of a coin 2, wherein at least a portion of a surface on at least one side of the metal plate 1 has a two-colored optical element 5.
  • the metal plate 1 can in this case particularly preferably be formed in one piece and / or homogeneously. Homogeneous in this context means that the metal plate 1 has substantially the same chemical composition over the entire volume, in other words that it is not a bimetallic plate.
  • a coin 2 may be formed in one piece or in several pieces, in particular in two pieces.
  • pill 3 of a coin 2 in a two-part coin 2, for example one euro coin, preferably the inner part of the coin 2 is designated.
  • the ring 4 of a coin 2 is preferably that part of a two-part coin 2 which preferably surrounds the pill 3 at the edge.
  • the metal plate may be square or round, in particular circular, be formed.
  • a coin 2, or a part of a coin 2, consisting of the metal plate 1 may particularly preferably be designed as a collector coin and / or as a foam, in particular as a medal.
  • the partial area of the surface on at least one side of the metal plate 1 will hereinafter be referred to merely as the partial area.
  • the two-color optical element 5 is arranged on at least one side of the metal plate 1. It can also be provided that a further two-colored optical element 5 is arranged on the opposite side.
  • the two-color optical element 5 may also have more than two colors, and is hereinafter referred to merely as the optical element 5.
  • the optical element 5 has at least a first region 6 with a first oxide layer 7 with a first color, which first color is an interference color.
  • first color is an interference color.
  • the first oxide layer 7 is at least partially transparent.
  • an interference color is a color which arises when a light beam, in particular white light, is at least partially reflected at both boundary surfaces of a layer of an at least partially transparent material, whereby the difference in the optical path length results in a constructive and / or destructive interference of the individual color components of the reflected light beam. Therefore, regions of the spectrum of the reflected light are deleted, depending on the wavelength, whereby the reflected light as interference color has the complementary color of the deleted spectral regions.
  • the observation direction for defining the first color can be set as normal to the viewed surface of the metal plate 1.
  • the first oxide layer 7 has a first thickness of 20 nm to 2000 nm, in particular 30 nm to 1000 nm, particularly preferably 50 nm to 500 nm. Up to 2000 nm, interference colors are still very noticeable. In the range from 50 nm to 500 nm in this case interference colors are particularly pronounced.
  • the first thickness of the first oxide layer 7 is substantially constant over the entire area of the at least one first region 6.
  • the first oxide layer 7 is formed as a metal oxide layer.
  • the optical element 5 furthermore has at least one second area 8 with a second color, the first color being different from the second color.
  • the first region 6 and the second region 8 may be parts of the subregion.
  • the first region 6 is arranged directly adjacent to the second region 8.
  • the subarea is designed to be continuous.
  • the difference in color can be defined here particularly preferably according to the Lab color space, which is also known under the name CIELAB color space.
  • the Lab color space has three dimensionless axes, the L axis, which represents the brightness and can assume a value between 0 and 100, the a axis which represents the green or red portion of a color and a value between -150 and 100, as well as the b-axis which represents the blue or yellow part of a color and a value between -100 and 150 can take.
  • the Euclidean distance of the first color to the second color in the dimensionless Lab color space is at least 5, in particular at least 10, particularly preferably at least 20, dimensionless units.
  • the first color represents a first coordinate point
  • the second color represents a second coordinate point of the dimensionless Lab color space.
  • the first area 6 and / or the second area 8 may be formed, for example, according to a predetermined motif.
  • the choice of motive shown here is absolutely arbitrary and it is clear that the first area 6 and / or the second area 8 can represent any motive.
  • Fig. 1 is depicted as a motif of the capital letter H, H here being the second area 8, and the surrounding area being the first area 6.
  • the first region 6 and / or the second region 8 can in this case be in the form of a contiguous region, as in FIG Fig. 1 represented, or be formed of a plurality of sub-areas.
  • the first region 6 is formed as a recess 9 with respect to the second region 8.
  • the optical element 5 can be provided with a height profile.
  • the optical element 5 may in this case be provided in particular with an embossing, wherein, as in Fig. 2 to 6 illustrated, the first region 6 as a recess, and the second region 8 is formed as a survey 13.
  • the motif can be represented congruently by the embossing as well as by the optical element 5. In Fig. 2 to 6 the dimension is reproduced very distorted for better understanding.
  • the second region 8 is formed as a recess 9 with respect to the first region 6.
  • the first region 6 is formed as a depression 9 by at least a height of 0.05 mm with respect to the second region 8. Furthermore, it can be provided that the first region 6 and / or the second region 8 have a further embossing, but which have a smaller depth than 0.05 mm. This further embossing can preferably represent fine details of the motif here.
  • the first oxide layer 7 may be made, for example, by a physical vapor deposition method. Such physical vapor deposition processes, in particular sputtering or sputtering, offer the advantage that a large number of possible oxides can be applied. As a result, the material of the first oxide layer 7 can be selected substantially independently of the material of the metal plate 1.
  • the first oxide layer 7 may be manufactured as a further example also by means of a chemical vapor phase-off method. Again, many methods for producing uniform oxide layers are known.
  • the first oxide layer 7 may be made by a thermal process, for example tempering.
  • the metal plate 1 is heated in such a way that a first oxide layer 7 of predeterminable thickness is formed.
  • the first oxide layer 7 is produced electrochemically.
  • An electrochemical coating process has the advantage that it can be carried out with simple means and with good controllability.
  • the first oxide layer 7 is produced electrochemically by anodic oxidation.
  • Anodic oxidation is also known by the term anodic dip coating, ATL for short.
  • ATL anodic dip coating
  • Anodic oxidation is often referred to as anodization.
  • An oxide layer produced by anodic oxidation advantageously has a particularly uniform layer thickness.
  • the Anodic oxidation well controlled, the coating process is depending on the coating parameters at a certain thickness self-stopping. Self-stopping means in this context that due to the high electrical resistance of the growing oxide layer, it comes from a certain layer thickness to no further, or only an insignificant, layer growth.
  • a final first thickness of the first oxide layer 7 can be specified particularly well by the different coating parameters.
  • a particularly good mechanical toothing of the first oxide layer 7 with the remaining metal plate 1 is provided.
  • the first oxide layer 7 comprises an oxide of the material of the metal plate 1.
  • the first oxide layer 7 is particularly stable, and has a particularly high adhesion to the metal plate 1.
  • the metal plate 1 consists of a metal or a metal alloy of group 4, 5 and / or 6 of the Periodic Table, in particular Ti, Mo, and / or Nb. It has been found that these metals or metal alloys are particularly suitable for the optical element 5 due to the properties of the metals or the associated metal oxides.
  • the metal plate 1 consists of Nb, ie niobium, since Nb has been found to be particularly suitable.
  • the second region 8 can be designed in different ways. For example, it can be provided that the second area 8 is painted, painted and / or printed.
  • the second region 8 is uncoated, that is, no further coloring layer is artificially applied to the second region.
  • the second region 8 essentially has the color of the material of the metal plate 1.
  • the second region 8 can also be regarded as uncoated if a natural oxide layer forms by reaction of the bare metal plate 1 with the surrounding atmosphere, for example aluminum oxide on aluminum.
  • An uncoated second area 8 is light and has a good contrast to the first region 6 with its interference color.
  • the second region 8 has a second oxide layer 10, and in particular the second color is an interference color.
  • an optically particularly sophisticated optical element 5 can be formed, in particular from a distance, whereby now also the second region 8 through the second oxide layer 10 is inert to external environmental influences.
  • the second oxide layer 10, like the first oxide layer 7, can be produced by different coating methods.
  • the second oxide layer 10 is produced electrochemically, in particular by anodic oxidation.
  • the anodic oxidation here has the additional effect that, if the thickness of the first oxide layer 7 is already self-stopping, there is no further increase of the first thickness, whereby the manufacturing process is particularly easy to control.
  • first oxide layer 7 and the second oxide layer 10 are produced by the same coating method, and in particular, except for the thickness, substantially the same as the first oxide layer 7 is formed.
  • the second oxide layer 10 has a second thickness of 20 nm to 2000 nm, in particular 30 nm to 1000 nm, particularly preferably 50 nm to 500 nm.
  • the second thickness of the second oxide layer 10 is substantially constant over the entire area of the at least one second area 8.
  • the first oxide layer 7 is thicker than the second oxide layer 10.
  • the thicker first oxide layer 7 a good contrast of the two interference colors of the first region 6 and second area 8 can be achieved.
  • the first oxide layer 7 is thicker than the second oxide layer 10 by 25 nm, in particular 50 nm, particularly preferably 100 nm.
  • first oxide layer 7 and the second oxide layer 10 have substantially the same thickness.
  • the different color of the first region 6 and of the second region 8 can in this case take place in that the first region 6 and the second region 8 have a different surface roughness, whereby already differently perceivable interference colors of the first region 6 and the second region 8 can be achieved.
  • a coin in Fig. 1 It is particularly preferable to provide a coin 2 with pill 3 and ring 4, wherein at least the pill 3 is designed as a metal plate 1 as an advantageously formed metal plate 1 with an optical element 5.
  • the ring 4 of the coin may in this case particularly preferably be formed from a metal other than the pill 3, in particular silver. The advantage of this is that the ring 4 protects the pill 3, and thus also the optical element 5, from mechanical wear.
  • the invention comprises methods for producing the two-color optical element 5 on at least one side of the metal plate 1, in particular a coin 2, a pill 3 of a coin 2 or a ring 4 of a coin 2, comprising an oxide layer generating step and a surface modification step.
  • an oxide film 11 having an interference color is formed at least on the one portion of the surface of the metal plate 1.
  • the at least one second region 8 of the subregion of the surface is changed by means of an erosive method in order to achieve different optical properties of a first region 6 of the subregion of the surface.
  • the different optical property can, for example, as a different color or different Dullness be formed.
  • a coin 2 a pill 3 of a coin 2 or a ring 4 of a coin 2 with an advantageous optical element 5 can be produced in a particularly simple and reliable manner.
  • coating methods which coat, for example by means of a mask, specifically only the first region 6 with an oxide layer 11, however, it has proved advantageous and simpler to coat a whole subregion of the surface of the metal plate 1 and separate from the oxide layer production step selectively altering optical properties of the surface by means of an erosive method, which surface modification step may be performed before or after the oxide layer forming step.
  • This surface modification step may include partially ablating the oxide layer 11, but may also involve merely modifying the surface prior to the oxide layer forming step, for example, by roughening or polishing the surface, whereby the color of the oxide layer 11 formed thereon may be changed.
  • the one subarea of the surface of the metal plate 1 is roughened, in particular pickled.
  • both the adhesion of the oxide layer 11 can be improved and a better and more uniform optical sensation of the oxide layer 11 can be achieved.
  • a first region 6 and a second region 8 of the surface can be produced which have different optical properties, in this case gloss or mattness.
  • the surface modification step is carried out before the oxide layer generation step.
  • a first region 6 and a second region 8 with different optical properties can be produced.
  • the oxide layer 11 has substantially the same thickness, but by the different structure of the underlying metal surface, the optical effect of the oxide layer 11 can be changed, whereby the first region 6 and the second region 8 perceived differently colored become.
  • an optical element 5 can be provided because the oxide layer forming step can be formed as a final manufacturing step, and with the generation of only one oxide layer, an interference color-having first region 6 and second region 8 having different colors can be provided.
  • the oxide layer generating step is performed before the surface modification step, and that in the surface modification step, the oxide layer 11 is removed in the at least one second region 8 and left in the at least one first region 6.
  • This also makes it possible to produce an optical element 5 in a particularly simple manner, since first an oxide layer 11 is applied to the at least one subregion of the surface, and then the oxide layer 11 is selectively removed only in the second region 8.
  • a height profile is impressed on the at least one subregion of the surface of the metal plate 1.
  • the first region 6 as a recess 9, and the second region 8 can be formed as a survey 13.
  • it can be determined by the height profile in which regions of the at least one subregion of the surface of the metal plate 1 the ablative process of the surface modification step removes the surface.
  • the selective removal of the oxide layer 11 in the second region 8 can be simplified.
  • the embossment of the height profile may be performed before or after the oxide layer forming step. It has proven to be advantageous if the height profile is impressed on the metal plate before the oxide layer generating step, since thereby the oxide layer 11 is not injured by the embossing process.
  • the metal plate 1 is again embossed.
  • This re-stamping can in particular include fine details.
  • the impressing of the height profile enables the first region 6 and the second region 8 to be lifted apart from one another such that in the ablation process of the surface modification step the second region 6 is changed and the first region 8 is not.
  • first region 6 is formed as a depression 9, and the second region 8 as an elevation 13, it can be provided, in particular, that the at least one second region 8 is removed mechanically by abrading and / or polishing.
  • This offers the great advantage that the shaping of the first region 6 and of the second region 8 can be effected by the embossing which is usual in any case with a coin 2. As a result, no complicated further method for shaping the first region 6 and the second region 8 is necessary.
  • the selective removal of the second region 8 can also be effected by other ablation methods. For example, by a laser, an ion and / or plasma jet, or by engraving. If the oxide layer generating step has already taken place, the oxide layer 11 can also be removed by means of a lithographic process.
  • an oxide of the material of the metal plate 1 is produced as oxide layer 11 of the oxide layer generation step.
  • the oxide layer 11 is particularly resistant, and has a particularly high adhesion to the metal plate 1.
  • the oxide layer 11 of the oxide layer generation step by means of an electrochemical process, in particular by an oxidation of the metal plate 1 by anodic oxidation, is produced.
  • an electrochemical method the oxide layer 11 can be produced particularly easily.
  • the oxide layer 11 is produced by oxidizing the metal plate 1 by anodic oxidation.
  • the advantages of anodic oxidation are, as already described above, the uniform layer thickness and the good controllability.
  • the oxide layer 11 may be formed by a physical vapor deposition method, a chemical vapor deposition method, or thermal annealing.
  • Fig. 2 a part of the metal plate 1 is shown, which has been provided with a height profile. In this case, a height profile has already been embossed on the metal plate 1.
  • Fig. 3 will be the body of the Fig. 2 in which the metal plate has been coated with the oxide layer 11 which covers the first region 6 and the second region 8 in the same way, ie the oxide layer generation step has already taken place.
  • Fig. 4 In the surface modification step, the surface of the metal plate 1 was ground flat as indicated by the dot-and-dash line, whereby the oxide layer 11 in the second region 8 was ablated and left in the first region 6.
  • Fig. 4 also represents a first preferred embodiment of the two-colored optical element 5.
  • the oxide layer 11 left in the first region 6 represents the first oxide layer 7 of the optical element 5.
  • the second region 8 is uncoated.
  • the surface modification step when the surface modification step is performed after the oxide layer forming step, it may be provided that after the surface modification step, a further oxide layer 12 is formed on the at least a portion of the surface of the metal plate 1.
  • the further oxide layer 12 is produced by the same method as the oxide layer 11.
  • the further oxide layer 12 is produced such that the first region 6 has a first oxide layer 7 with a first thickness, and the second region 8 has a second oxide layer 10 with a second thickness, and that the first Thickness is greater than the second thickness.
  • the thicker first oxide layer 7 a good contrast of the two interference colors of the first region 6 and the second region 8 can be achieved.
  • the further oxide layer 12 in the second region 8 represents the second oxide layer 10.
  • the first oxide layer 7 has a self-stopping first thickness
  • the further oxide layer 12 was produced by means of anodic oxidation, which is why there was essentially no further layer growth in the first region 6. Therefore, also in the second preferred embodiment, the oxide layer 11 left in the first region 6 represents the first oxide layer 7 of the optical element 5.
  • the further oxide layer 12 in the second region 8 represents the second oxide layer 10 of the optical element 5 in the second preferred embodiment.
  • the coating process for producing the further oxide layer 12 In the coating process for producing the further oxide layer 12, further layer growth occurred in the first region 6. This is the case, for example, if the further oxide layer 12 was produced by means of a physical vapor deposition process, where layer growth occurs independently of the substrate, or because in the case of an anodic oxidation, the first thickness before the production of the further oxidation layer was not self-stopping.
  • the first oxide layer 7 in the first region 6 therefore consists of the oxide layer 11 and the further oxide layer 12 in the third preferred embodiment.
  • the further oxide layer 12 in the second region 8 also constitutes the second oxide layer 10 of the third preferred embodiment optical element 5 is.
  • the at least one subregion of the surface of the metal plate 1 is embossed and roughened, in particular pickled. This creates a height profile with a roughened surface.
  • the surface modification step is performed by grinding and polishing the second region 8, whereby the second region 8 is glossy, but the first region is still dull.
  • the oxide layer generation step the oxide layer 11 is produced on the at least one subregion of the surface, different interference colors being produced by the different surface structure and resulting optical properties of the first region 6 and second region 8.
  • an optical element 5 with more than two colors it may be provided, for example, that a third region, which is in particular a subregion of the second region 8, is removed. As a result, an optical element 5 having three colors can be manufactured. By further coating with oxides, and / or again abrading area by area, an optical element 5 with any number of colors can be produced.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Adornments (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Claims (18)

  1. Plaque métallique (1) pour une pièce de monnaie (2), pour un coeur (3) d'une pièce de monnaie (2) ou pour une couronne (4) d'une pièce de monnaie (2), dans laquelle au moins une partie d'une surface sur au moins une face de la plaque métallique (1) présente un élément optique bicolore (5), lequel élément optique (5) comporte au moins une première zone (6) avec une première couche d'oxyde (7) d'une première couleur, laquelle première couleur est une couleur interférente, et au moins une deuxième zone (8) d'une deuxième couleur, la première couleur étant différente de la deuxième, une gravure ayant un profil de hauteur étant frappée dans au moins une partie de la surface de la plaque métallique (1), la première zone (6) étant conformée comme un renfoncement (9) du profil de hauteur par rapport à la deuxième zone (8), caractérisée en ce qu'un motif est représenté, en recouvrement à l'identique, aussi bien par la gravure du profil de hauteur que par l'élément optique (5).
  2. Plaque métallique (1) selon la revendication 1, caractérisée en ce que la première couche d'oxyde (7) est produite par un procédé électrochimique, en particulier par oxydation anodique.
  3. Plaque métallique (1) selon l'une des revendications 1 à 2, caractérisée en ce que la première couche d'oxyde (7) comprend un oxyde du matériau composant la plaque métallique (1).
  4. Plaque métallique (1) selon l'une des revendications 1 à 3, caractérisée en ce que la plaque métallique (1) est faite d'un métal ou d'un alliage métallique du groupe IV, V et/ou VI du tableau périodique, en particulier Ti, Mo et/ou Nb.
  5. Plaque métallique (1) selon l'une des revendications 1 à 4, caractérisée en ce que la deuxième zone (8) comporte une deuxième couche d'oxyde (10) et la deuxième couleur est en particulier une couleur interférente.
  6. Plaque métallique (1) selon la revendication 5, caractérisée en ce que la deuxième couche d'oxyde (10) est produite par un procédé électrochimique, en particulier par oxydation anodique.
  7. Plaque métallique (1) selon la revendication 5 ou 6, caractérisée en ce que la première couche d'oxyde (7) est plus épaisse que la deuxième couche d'oxyde (10).
  8. Pièce de monnaie (2) comprenant une plaque métallique (1) selon les revendications 1 à 7.
  9. Pièce de monnaie (2) avec un coeur (3) et une couronne (4), caractérisée en ce que le coeur (3), au minimum, est conformé comme une plaque métallique (1) selon les revendications 1 à 7.
  10. Procédé pour la fabrication d'un élément optique bicolore (5) sur au moins une face d'une plaque métallique (1), en particulier d'une pièce de monnaie (2), d'un coeur (3) d'une pièce de monnaie (2) ou d'une couronne (4) d'une pièce de monnaie (2), comprenant
    - une étape de création d'une couche d'oxyde dans laquelle une couche d'oxyde (11) présentant une couleur interférente est créée au moins sur une partie d'une surface de la plaque métallique (1)
    - et une étape de modification de la surface, une gravure d'un profil de hauteur étant frappée avant l'étape de modification de la surface dans au moins une partie de la surface de la plaque métallique (1), au moins une première zone (6) de la partie de la surface étant conformée comme un renfoncement (9) du profil de hauteur par rapport à la deuxième zone (8) de la partie de la surface, la deuxième zone (8) de la partie de la surface étant modifiée pendant l'étape de modification de la surface pour obtenir des propriétés optiques différentes entre la deuxième zone (8) et la première zone (6) de la partie de la surface au moyen d'un procédé d'enlèvement de matière, un motif étant représenté ainsi en chevauchement à l'identique aussi bien par la gravure du profil de hauteur que par l'élément optique (5).
  11. Procédé selon la revendication 10, caractérisé en ce qu'avant l'étape de modification de la surface, au moins la partie de la surface de la plaque métallique (1) est rendue rugueuse, en particulier mordancée.
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce que l'étape de modification de la surface est exécutée avant l'étape de création de la couche d'oxyde.
  13. Procédé selon la revendication 10 ou 11, caractérisé en ce que l'étape de création de la couche d'oxyde est exécutée avant l'étape de modification de la surface et en ce que, lors de l'étape de modification de la surface, la couche d'oxyde (11) est enlevée dans l'au moins une deuxième zone (8) et laissée dans l'au moins une première zone (6).
  14. Procédé selon l'une des revendications 10 à 13, caractérisé en ce que le procédé d'enlèvement de matière choisi dans l'étape de modification de la surface est un procédé mécanique, en particulier une rectification plane et/ou un polissage.
  15. Procédé selon l'une des revendications 10 à 14, caractérisé en ce que la couche d'oxyde (11) produite dans l'étape de création de la couche d'oxyde est un oxyde du matériau composant la plaque métallique (1).
  16. Procédé selon l'une des revendications 10 à 15, caractérisé en ce que la couche d'oxyde (11) de l'étape de création de la couche d'oxyde est produite au moyen d'un procédé électrochimique, en particulier par une oxydation de la plaque métallique (1) par oxydation anodique.
  17. Procédé selon l'une des revendications 13 à 16, caractérisé en ce qu'après l'étape de modification de la surface, une autre couche d'oxyde (12) est produite sur au moins une partie de la plaque métallique (1).
  18. Procédé selon la revendication 17, caractérisé en ce que l'autre couche d'oxyde (12) est produite de telle manière que la première zone (6) présente une première couche d'oxyde (7) ayant une première épaisseur et la deuxième zone (8) une deuxième couche d'oxyde (10) ayant une deuxième épaisseur, et en ce que la première épaisseur est plus grande que la deuxième épaisseur.
EP14749698.8A 2013-07-05 2014-06-25 Plaque métallique Active EP3017095B1 (fr)

Priority Applications (1)

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PL14749698T PL3017095T3 (pl) 2013-07-05 2014-06-25 Płytka metalowa

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ATA565/2013A AT514194B1 (de) 2013-07-05 2013-07-05 Metallplatte
PCT/AT2014/000131 WO2015000003A1 (fr) 2013-07-05 2014-06-25 Plaque métallique

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EP3017095A1 EP3017095A1 (fr) 2016-05-11
EP3017095B1 true EP3017095B1 (fr) 2017-06-07

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US (2) US20160153110A1 (fr)
EP (1) EP3017095B1 (fr)
JP (2) JP6422949B2 (fr)
AT (1) AT514194B1 (fr)
AU (1) AU2014286904B2 (fr)
CA (1) CA2917345C (fr)
ES (1) ES2639346T3 (fr)
PL (1) PL3017095T3 (fr)
WO (1) WO2015000003A1 (fr)
ZA (1) ZA201600373B (fr)

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CA2917345A1 (fr) 2015-01-08
US20160153110A1 (en) 2016-06-02
PL3017095T3 (pl) 2017-11-30
AU2014286904B2 (en) 2016-09-29
AU2014286904A1 (en) 2016-02-18
US20180195195A1 (en) 2018-07-12
JP6423029B2 (ja) 2018-11-14
EP3017095A1 (fr) 2016-05-11
WO2015000003A1 (fr) 2015-01-08
US11131035B2 (en) 2021-09-28
AT514194A4 (de) 2014-11-15
ZA201600373B (en) 2017-03-29
AT514194B1 (de) 2014-11-15
CA2917345C (fr) 2017-02-21
JP2017150080A (ja) 2017-08-31
JP2016530396A (ja) 2016-09-29
ES2639346T3 (es) 2017-10-26
JP6422949B2 (ja) 2018-11-14

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