EP4045305B1 - Outil de presse - Google Patents

Outil de presse Download PDF

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Publication number
EP4045305B1
EP4045305B1 EP20792605.6A EP20792605A EP4045305B1 EP 4045305 B1 EP4045305 B1 EP 4045305B1 EP 20792605 A EP20792605 A EP 20792605A EP 4045305 B1 EP4045305 B1 EP 4045305B1
Authority
EP
European Patent Office
Prior art keywords
wear layer
pressing
metal
layer
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20792605.6A
Other languages
German (de)
English (en)
Other versions
EP4045305A1 (fr
Inventor
Thorsten Hagedorn
Berthold Thölen
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.)
Hueck Rheinische GmbH
Original Assignee
Hueck Rheinische 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 Hueck Rheinische GmbH filed Critical Hueck Rheinische GmbH
Publication of EP4045305A1 publication Critical patent/EP4045305A1/fr
Application granted granted Critical
Publication of EP4045305B1 publication Critical patent/EP4045305B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Definitions

  • the invention relates to a pressing tool.
  • Press tools e.g. in the form of press plates, endless belts or embossing rollers, are used in the wood processing industry to produce workpieces such as furniture, laminates or panels, i.e. workpieces in general.
  • the workpieces are pressed with the pressing surface of the press tool so that the workpieces receive surfaces corresponding to the pressing surface.
  • the WO 2009/062488 A2 discloses a press plate with a structured press surface.
  • the structured press surface comprises a structure that has a mountain-like surface with valleys and peaks.
  • the structured press surface is produced by deep etching and comprises a full-surface chrome layer that rests against the material plate during pressing.
  • the EN 20 2015 006023 U1 describes a mold for producing molded blocks, wherein the mold has one or more mold cavities with mold cavity walls that can be filled with molded block mass, wherein the mold cavity walls have a coating that comprises an anti-wear matrix and a non-stick component, and wherein the anti-wear matrix is selected from nickel-phosphorus alloy, sol-gel ceramic, silicon carbide (SiC), nanocrystalline hard materials, titanium nitride, silicon nitride, tungsten carbides, DLC, zinc oxides, TiAlCN, AICrN, AlTiCrN and/or ZrCrN.
  • the mold has one or more mold cavities with mold cavity walls that can be filled with molded block mass, wherein the mold cavity walls have a coating that comprises an anti-wear matrix and a non-stick component, and wherein the anti-wear matrix is selected from nickel-phosphorus alloy, sol-gel ceramic, silicon carbide (SiC), nanocrystalline hard materials, titanium nitride, silicon nitride,
  • the EP 1 637 314 A1 describes a hot-press film with a film-shaped base material and a release film applied thereto, which comprises a resin composition and 5 wt.% or more of organic powder and 5 wt.% or more of inorganic powder.
  • the resulting mixture of 5 to 55 wt.% of the organic powder and 5 to 55 wt.% of the inorganic powder amounts to a total of 30 to 60 wt.% of the film.
  • the document EP 1 637 314 A1 discloses a pressing tool according to the preamble of claim 1.
  • the object of the invention is to provide an improved pressing tool with a pressing surface.
  • the object of the invention is achieved by a pressing tool for producing a workpiece, having a base structure, a pressing surface and a wear layer arranged on the base structure and at least partially forming the pressing surface, which is in contact with the workpiece during the production of the workpiece by pressing and in which a release agent is embedded, which at least reduces adhesion of the wear layer to the workpiece during pressing.
  • the wear layer is a full-surface wear layer applied to the base structure, on which a partial wear layer with a release agent embedded therein is arranged, so that the full-surface and the partial wear layers form the pressing surface.
  • the full-surface wear layer has a first degree of gloss and the partial wear layer has a second degree of gloss different from the first degree of gloss.
  • the pressing tool therefore includes the full-surface and the partial wear layer arranged on top of it, in each of which the release agent is embedded. This makes it possible, for example, to provide the pressing surface with areas of different gloss levels.
  • the different gloss levels of the wear layers designed as paint or plastic layers can be achieved, for example, by hardening the wear layers, e.g. by UV radiation, electron beam or laser hardening, or by exposing them to different temperatures.
  • the wear layer is made of metal or plastic, for example, or is a paint wear layer.
  • the pressing tool with the wear layer can be manufactured, for example, by applying a metal, plastic or lacquer layer to the base structure with the addition of the release agent in order to obtain the wear layer which at least partially forms the pressing surface.
  • the pressing tool is preferably made by applying the plastic layer to the base structure with the addition of the Release agent is produced by printing. This type of production is relatively environmentally friendly.
  • the plastic preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the pressing tool is preferably produced by applying the metal layer to the base structure with the addition of the release agent by galvanic or chemical coating.
  • the metal of the metal layer is preferably chromium-free.
  • the metal layer is a nickel layer, the production of which is relatively environmentally friendly.
  • the press tool is preferably produced by applying the paint layer to the base structure by printing or powder coating. This can also be done in a relatively environmentally friendly way.
  • a pressing tool for producing a workpiece having a pressing surface with a structure of elevations and depressions and several metal or plastic layers superimposed in layers, wherein during the production of the workpiece by pressing the pressing surface is in contact with the workpiece and a release agent is embedded in the metal, plastic or lacquer layers superimposed in layers, which at least reduces adhesion of the pressing surface to the workpiece during pressing.
  • the plastic preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the pressing tool according to the invention is, for example, an endless belt, an embossing roller or preferably a pressing plate and comprises the pressing surface.
  • the pressing surface can be smooth or preferably have a structure of elevations and depressions i.e. a structured pressing surface. This gives the workpiece a structured surface corresponding to the structure of the pressing surface.
  • the workpiece is, for example, a material board.
  • a material board This includes, for example, a carrier, e.g. an MDF board or a chipboard, which is pressed using the pressing tool with a resin or plastic coated or impregnated carrier, e.g. in the form of paper.
  • the material board can also be a so-called luxury vinyl tile (LVT).
  • the pressing tool includes the pressing surface with which the workpiece is produced by pressing. During pressing, the pressing surface lies against the material or is in contact with it, so that the workpiece has a surface that corresponds to the pressing surface.
  • the release agent is embedded in the wear layer that at least partially forms the pressing surface.
  • Release agents as such are intended to keep materials lying next to one another separable, i.e. in this case at least reduce the adhesion of the wear layer and thus the adhesion of the pressing surface to the workpiece. This can increase the quality of the workpiece. Since the release agent is already embedded in the wear layer, the addition of an additional release agent during pressing can be dispensed with, which makes handling the pressing tool according to the invention easier.
  • the residues are in particular resin or plastic residues if the pressed workpiece is pressed with the carrier coated or impregnated with resin or plastic.
  • the release agent is preferably a particulate release agent.
  • the particulate release agent can be embedded in the wear layer in a relatively simple manner, for example by adding it to the base structure when the metal, plastic or paint layer is applied to the base structure in order to obtain the wear layer which at least partially forms the pressing surface.
  • the particles of the particulate release agent preferably have a relatively small diameter of e.g. 150 to 250 nanometers.
  • the particulate release agent is available in powder form, for example.
  • the particulate release agent comprises perfluoroalkoxy polymer particles or consists of perfluoroalkoxy polymer particles.
  • Perfluoroalkoxy polymer particles as a particulate release agent can be added to the wear layer made of metal, plastic or paint in a relatively simple manner.
  • Perfluoroalkoxy polymers (abbreviated to PFA) are in particular fully fluorinated plastics, copolymers of tetrafluoroethylene (TFE) or perfluoroalkoxy vinyl ethers, such as perfluorovinylpropyl ether.
  • Perfluoroalkoxy polymer particles as particulate release agents are suitable for the wear layer made of metal or plastic, but also for the paint wear layer.
  • the particulate release agent comprises polytetrafluoroethylene particles or consists of polytetrafluoroethylene particles.
  • Polytetrafluoroethylene (PTFE for short) is in particular an unbranched, linear, partially crystalline polymer made of fluorine and carbon.
  • Polytetrafluoroethylene particles as a particulate release agent are particularly suitable for the plastic wear layer or for the paint wear layer.
  • the release agent is a solvent-containing release agent. This is particularly suitable for use with the paint wear layer.
  • the release agent preferably comprises a volume fraction of 10 - 30%, in particular 15 - 25%, based on the volume of the wear layer.
  • the full-surface metal wear layer can be treated before applying the partial metal wear layer.
  • This treatment can be a mechanical treatment and/or galvanic and/or chemical treatment of the full-surface wear layer and/or the treatment of the full-surface wear layer can be carried out with a laser.
  • Treating the full-surface wear layer can also be a thermal treatment, e.g. tempering the full-surface wear layer in order to harden it, for example. If the full-surface wear layer is made of nickel, the thermal treatment can give it a hardness of approx. 1100 Vickers or more.
  • the partial metal wear layer can be additionally treated.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the partial metal wear layer and/or the treatment of the partial metal wear layer can be carried out with a laser.
  • the treatment of the partial metal wear layer can also be a thermal treatment, e.g. tempering of the partial metal wear layer in order to increase its wear resistance.
  • the pressing surface is in contact with the workpiece and is therefore subject to wear. In order to reduce wear, the pressing surface should therefore be relatively wear-resistant.
  • mineral particles are therefore embedded in the wear layer or the metal or plastic layers.
  • the mineral particles are optionally embedded in the full-surface wear layer and the partial wear layer arranged thereon.
  • This embodiment of the pressing plate according to the invention can be manufactured by applying a metal, plastic or paint layer to the base structure with the addition of the release agent and with the addition of the mineral particles in order to obtain the wear layer that at least partially forms the pressing surface.
  • the mineral particles are formed, for example, as mineral powder.
  • the mineral particles of the wear layer optionally the full-surface wear layer and the partial wear layer arranged thereon, have in particular a Mohs hardness of at least 8.
  • the mineral particles have a size in the nanometer or micrometer range. This allows the mineral particles to be embedded relatively homogeneously in the wear layer, optionally in the full-surface wear layer and the partial wear layer arranged thereon, which gives the wear layer a relatively homogeneous hardness over its entire surface.
  • the sizes of the individual mineral particles can be different or essentially the same.
  • the mineral particles preferably have a volume fraction of at least 50% based on the volume of the corresponding wear layer with mineral particles embedded therein. Based on the size, volume fraction and type of minerals of the mineral particles, the desired degree of hardness of the wear layer with mineral particles embedded therein can be set.
  • the mineral particles are in particular diamond particles.
  • the diamond particles are in particular industrial diamond particles, ie the diamond or mineral particles in general can be produced artificially.
  • the minerals silicon carbide, boron nitride, boron carbide, aluminum oxide and titanium oxide in particular can also be used as mineral particles.
  • the mineral particles are formed, for example, as mineral powder, in particular as diamond powder and preferably as industrial diamond powder.
  • the basic structure in particular the structured basic structure, can be treated before arranging or coating the basic structure with the wear layer, so that the wear layer preferably adheres better to the basic structure.
  • This treatment can be a mechanical treatment of the basic structure, due to which, for example, the surface of the basic structure is roughened, so that the wear layer, which is in particular designed as a paint or plastic layer, adheres better to the basic structure.
  • the treatment of the basic structure can include a galvanic, chemical and/or mechanical treatment of the basic structure and/or the treatment of the basic structure with a laser. Due to the treatment of the basic structure, the structure of the basic structure can be refined, for example.
  • the Fig.1 shows a perspective view of a press plate 1 with a pressing surface 2 as an example of a pressing tool.
  • the Fig. 2 shows a detail of a side view of a first non-inventive example of the press plate 1 in a sectional view.
  • the press plate 1 comprises a basic structure 10, e.g. made of metal or plastic.
  • the press surface 2 has a structure of depressions 3 and elevations 4, so that the basic structure 10 is structured according to the structure of the press surface 2.
  • the press surface 2 is assigned, e.g., a wood grain.
  • the basic structure 10 is preferably made of steel and was produced, for example, by deep etching.
  • a workpiece e.g. a material plate, for example a laminate
  • the workpiece After pressing, the workpiece has a surface structured according to the structure of the press surface 2.
  • the press plate 1 comprises a wear layer 11 arranged on the base structure 10.
  • the wear layer 11 can be a partial wear layer, but in the case of the present embodiment is a full-surface wear layer.
  • a release agent 12 is embedded in the wear layer 11.
  • the wear layer 11 is made of plastic or metal, for example.
  • the wear layer 11 can also be a paint layer or a paint wear layer.
  • the wear layer 11 is made of metal
  • the metal is preferably nickel.
  • the plastic preferably comprises polyetheretherketone or consists of polyetheretherketone.
  • the release agent 12 is preferably a particulate release agent.
  • the particles of the particulate release agent 12 preferably have a relatively small diameter of, for example, 150 to 250 nanometers and have a volume fraction of 10 - 30%, in particular 15 - 25%, based on the volume of the wear layer 11.
  • the particulate release agent 12 comprises, for example, perflouraloxy polymer particles or consists of perflouraloxy polymer particles.
  • the particulate release agent 12 may comprise polytetrafluoroethylene particles or consist of polytetrafluoroethylene particles.
  • mineral particles 13 are also embedded in the wear layer 11.
  • the mineral particles 13 are in particular industrial diamond particles and have a size in the nanometer or micrometer range.
  • the sizes of the individual mineral particles 13 can be different or essentially the same.
  • the mineral particles 13 preferably have a volume fraction of at least 50% based on the volume of the wear layer 11.
  • the pressing tool 1 is preferably produced by applying a plastic layer to the base structure 10 with the addition of the release agent 12 and with the addition of the mineral particles 13 by printing in order to obtain the wear layer 11 made of plastic.
  • the pressing tool 1 is preferably produced by applying a metal layer to the base structure 10 with the addition of the release agent 12 and the mineral particles 13 by galvanic or chemical coating in order to obtain the wear layer 11 made of metal.
  • the pressing tool 1 is preferably produced by applying a paint layer with the addition of the release agent 12 and the mineral particles 13 by printing or by powder coating in order to obtain the wear layer 11 designed as a paint wear layer.
  • the base structure 10 can be treated before applying the wear layer 11 so that, for example, the wear layer 11 adheres better to the base structure 10.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the base structure 10 and/or treating the base structure 10 with a laser.
  • the release agent 12 can also be a solvent-based release agent. This is particularly suitable for the wear layer 11 designed as a paint wear layer.
  • the Fig. 3 shows a section of a side view of a second
  • the Fig.3 The second embodiment shown differs from that shown in the Fig. 2 shown embodiment of the press plate 1 essentially in that a partial wear layer is applied to the full-surface wear layer 11, in which the release agent 12 and mineral particles 13 are also embedded.
  • the full-surface wear layer 11 has in particular a first degree of gloss and the partial wear layer has a second degree of gloss which differs from the first degree of gloss.
  • the different degrees of gloss can be achieved, for example, by hardening the wear layers 11, e.g. by UV irradiation, electron beam or laser hardening, or by exposing them to different temperatures.
  • the full-surface wear layer 11 made of metal can be removed before the partial wear layer is applied made of metal.
  • This treatment can comprise a mechanical treatment and/or a galvanic and/or a chemical treatment of the full-surface wear layer 11 and/or the treatment of the full-surface wear layer 11 can be carried out with a laser.
  • the treatment of the full-surface wear layer 11 can also be a thermal treatment, e.g. tempering the full-surface wear layer 11 in order to harden it, for example. If the full-surface wear layer 11 is made of nickel, the thermal treatment can give it a hardness of approx. 1100 HV or more.
  • the partial metal wear layer can be additionally treated.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the partial metal wear layer and/or the treatment of the partial metal wear layer can be carried out with a laser.
  • the treatment of the partial metal wear layer can also be a thermal treatment, e.g. tempering of the partial metal wear layer in order to increase its wear resistance.
  • the Fig.4 shows a section of a side view of an alternative example of the press plate 1.
  • the pressing surface 2 of the Fig.4 The example of the press plate 1 shown is structured and includes the structure of depressions 3 and elevations 4.
  • the press plate 1 of the alternative example comprises a base support 41 made of steel and several metal, plastic or lacquer layers 42 arranged one above the other or superimposed in layers, in each of which the release agent 12 is embedded.
  • the mineral particles 13 are embedded in the metal, plastic or lacquer layers 42.
  • the metal layers are primarily nickel layers.
  • the metal, plastic or paint layers 42 are metal layers, then they were produced, for example, by a chemical or galvanic process.
  • the press sheet 1 was preferably produced without etching by applying a mask to cover areas, applying a metal layer to the areas not covered by the mask with the addition of the release agent 12 and the mineral particles 13, and repeating this until the press surface 2 with the structure of the elevations 4 and depressions 3 was created by repeatedly applying masks and metal layers in layers with the addition of the release agent 12 and mineral particles 13.
  • the treatment of the metal layers can also be a thermal treatment, e.g. tempering, whereby the metal layers can have a hardness of at least 1100 HV.
  • the metal layers can also be treated.
  • This treatment can include mechanical treatment and/or galvanic and/or chemical treatment of the individual metal layers and/or the treatment of the metal layers can be carried out with a laser.
  • metal, plastic or lacquer layers 42 are plastic layers, they can be applied layer by layer using a printer, for example.
  • the plastic layers can also be treated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Claims (6)

  1. Outil de presse pour la fabrication d'une pièce, comprenant une structure de base (10), une surface de presse (2) et une couche d'usure (11) disposée sur la structure de base (10) et constituant au moins partiellement la surface de presse (2), qui entre en contact avec la pièce pendant la fabrication de la pièce par pressage et dans laquelle est intégré un moyen de séparation (12), qui, au minimum, réduit, pendant le pressage, l'adhérence de la couche d'usure (11) à la pièce,
    caractérisé en ce que
    la couche d'usure est une couche d'usure (11) appliquée sur toute la surface de la structure de base (10), sur laquelle est disposée une couche d'usure partielle avec un moyen de séparation (12) intégré, de sorte que les couches d'usure (11) sur toute la surface et partielle forment la surface de presse (2) et en ce que la couche d'usure (11) sur toute la surface présente un premier degré de brillance et la couche d'usure partielle présente un deuxième degré de brillance différent du premier degré de brillance.
  2. Outil de presse selon la revendication 1, dans lequel la couche d'usure (11) est constituée de métal ou de matière plastique ou est une couche d'usure avec peinture et/ou, dans la couche d'usure (12), sont intégrées des particules minérales (13) et/ou la surface de presse (2) présente une structure constituée de bossages (4) et de creux (3).
  3. Outil de presse selon l'une des revendications 1 à 2, dans lequel le moyen de séparation (12) est un moyen de séparation sous forme de particules.
  4. Outil de presse selon la revendication 3, dans lequel le moyen de séparation sous forme de particules (12) comprend des particules polymères de perfluoraloxy et/ou des particules de polytétrafluoroéthylène, et/ou les particules du moyen de séparation sous forme de particules (12) présentent un diamètre de 150 à 250 nanomètres.
  5. Outil de presse selon l'une des revendications 1 à 2, dans lequel le moyen de séparation (12) est un moyen de séparation contenant des solvants.
  6. Outil de presse selon l'une des revendications 1 à 5, dans lequel le moyen de séparation (12) présente une part en volume de 10 - 30 %.
EP20792605.6A 2019-10-15 2020-10-13 Outil de presse Active EP4045305B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019127657.8A DE102019127657A1 (de) 2019-10-15 2019-10-15 Presswerkzeug
PCT/EP2020/078756 WO2021074135A1 (fr) 2019-10-15 2020-10-13 Outil de presse

Publications (2)

Publication Number Publication Date
EP4045305A1 EP4045305A1 (fr) 2022-08-24
EP4045305B1 true EP4045305B1 (fr) 2024-05-08

Family

ID=72895950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20792605.6A Active EP4045305B1 (fr) 2019-10-15 2020-10-13 Outil de presse

Country Status (4)

Country Link
EP (1) EP4045305B1 (fr)
AU (1) AU2020367371A1 (fr)
DE (1) DE102019127657A1 (fr)
WO (1) WO2021074135A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991005660A1 (fr) * 1989-10-19 1991-05-02 Avery International Corporation Procede de fabrication de panneaux muraux en plastique avec surfaces de revetement exterieur bosselees pouvant etre exposees aux agents atmospheriques
US6423167B1 (en) * 1998-06-05 2002-07-23 Premark Rwp Holdings Method for controlling laminate gloss
JP4183558B2 (ja) * 2003-05-26 2008-11-19 ヤマウチ株式会社 熱プレス用シート
BE1017536A6 (nl) * 2007-04-02 2008-11-04 Flooring Ind Ltd Perselement en werkwijze voor het vervaardigen van laminaat.
DE102007055053A1 (de) * 2007-11-16 2009-05-20 Hueck Engraving Gmbh & Co. Kg Verfahren zur Bearbeitung einer strukturierten Oberfläche
EP2626216B1 (fr) * 2011-03-10 2018-07-11 HUECK Rheinische GmbH Procédé de traitement d'une surface structurée d'un outil de gaufrage et l'outil de gaufrage
FI20126040L (fi) * 2012-10-05 2014-04-06 Iscent Oy Menetelmä mikro- tai nanorakenteiden valmistamiseksi polymeerikalvomateriaaliin
DE102013010160A1 (de) * 2013-06-19 2015-01-08 Hueck Rheinische Gmbh Verfahren zur Herstellung einer Werkstoffplatte mittels eines Pressbleches oder Endlosbandes, sowie Pressblech oder Endlosband und Werkstoffplatte
DE102014012738B4 (de) * 2014-08-27 2023-03-30 Rampf Formen Gmbh Form, Rüttelbare Unterlage und Ziehblech mit beschichteten Oberflächen, Verfahren zu deren Herstellung sowie Verwendung der Beschichtungen
DE202015005608U1 (de) * 2015-08-07 2015-09-11 Rolf Espe Ausrüstung einer metallischen Pressblech- und Endlosband-Oberfläche mit einer tribologisch positiven Schicht, um den vorzeitigen Verschleiß der Oberflächen entgegenzuwirken
DE202015007140U1 (de) * 2015-10-13 2015-11-03 Rolf Espe Presswerkzeug mit einer trennfähigen und abriebfesten Oberfläche
EP3527359A1 (fr) * 2018-02-14 2019-08-21 AKK GmbH Procédé et dispositif de structuration d'une surface pour un outil de gaufrage

Also Published As

Publication number Publication date
EP4045305A1 (fr) 2022-08-24
AU2020367371A1 (en) 2022-05-19
WO2021074135A1 (fr) 2021-04-22
DE102019127657A1 (de) 2021-04-15

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