EP2551383A2 - Galvanically coated component and method for producing same - Google Patents
Galvanically coated component and method for producing same Download PDFInfo
- Publication number
- EP2551383A2 EP2551383A2 EP12175116A EP12175116A EP2551383A2 EP 2551383 A2 EP2551383 A2 EP 2551383A2 EP 12175116 A EP12175116 A EP 12175116A EP 12175116 A EP12175116 A EP 12175116A EP 2551383 A2 EP2551383 A2 EP 2551383A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- component
- metallic
- ground
- brushed
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
Definitions
- the present invention relates to a galvanically coated component having a base component, which has an electrically conductive surface, and with a plurality of metallic layers, which are applied to one another superimposed on the base component, wherein at least one layer has a machined surface. Furthermore, the invention relates to a method for producing such components.
- Electroplating is an electrochemical process in which a metal layer is deposited on a device having an electrically conductive surface.
- electrolytes are generally used. These consist of aqueous solutions of ionic compounds of the metals to be deposited, as well as other constituents, such as alkalis, acids and additives.
- the components are immersed in an electrolyte bath after a suitable pretreatment, and a metal coating is deposited on the component as a result of the application of an external voltage. That way you can For example, chromium, nickel, zinc, or noble metal layers or even alloy layers are applied to components.
- the galvanic application of the metallic layers can be both functionally and aesthetically motivated.
- the functional electroplating technology focuses on the protection of components against corrosion and wear or an improvement in the electrical conductivity, in particular of the surface.
- the provision of a comparatively hard surface can also be achieved by electroplating.
- the metallization of surfaces is carried out to meet aesthetic requirements.
- Plastic components can be chrome plated, for example, to create a valuable visual impression.
- the components are characterized by a high gloss and look noble and solid.
- High demands are placed on the quality of the galvanically coated components. They must be characterized by excellent surface properties, and there must be a high degree of flexibility with regard to the design possibilities, especially of the surface of the components.
- the aspirations go further to produce components that give the impression through their look and feel, to be made of a particular, valuable metal, although they are not or at least not entirely made of this metal.
- a method for producing a component, which is characterized by a stainless steel-like appearance is, for example, in the DE 103 03 649 A1 disclosed.
- a layer of copper, nickel or a copper-nickel alloy is first applied to an existing plastic component.
- the applied metal layer is brushed and / or sandblasted and on the thus surface-treated layer, a nickel-tungsten layer is applied.
- a component obtained in the Substantially consists of plastic, but as a result of the coating and the brushing and / or sandblasting of at least one layer has a stainless steel-like appearance.
- a galvanically coated component of the type mentioned above which is characterized in that the surface of at least one of the metallic layers is ground by at least one abrasive having a grain size ⁇ 180, and the surface of at least one other overlying metallic layer brushed.
- the look and feel of brushed aluminum can be made by electroplating several metallic layers one above the other onto a component, one of the layers being ground with a fine or medium grit abrasive, and another overlying layer is brushed.
- the scoring structure produced by the grinding is not leveled during the application of the further layers, but penetrates into them.
- the interaction of loops and brushes results in the superimposed metallic layers of the component in the desired visual appearance of the surface.
- the haptic properties of the component are excellent due to the ridge structure in the surface.
- ground layer a soft metal such as copper or a soft metal alloy such as soft brass is used. This ensures that a pronounced and uniform scoring structure can be introduced into the surface of this layer using the abrasive. In addition, the ground layer can be additionally brushed.
- Substantially less material can be saved using the method according to the invention since the component does not have to be manufactured as a whole from aluminum in order to obtain the desired appearance. Rather, the use of aluminum can be completely dispensed with.
- the grain size of the abrasive used is less than 180, which means there are less than 180 grains per inch.
- the grain size is therefore about 140 microns.
- the surface of the ground layer can be ground by an abrasive with a grain size ⁇ 150, a grain size ⁇ 120, a grain size ⁇ 80 or a grain size ⁇ 60. These grits have proven to be particularly suitable for producing an authentic look of brushed aluminum.
- the ground layer consists of copper or a copper alloy, such as brass, or of nickel or tin.
- the brushed layer may further consist of nickel and on these may be applied a metallic cover layer consisting of chromium.
- the cover layer has a thickness which remains substantially constant over the surface of the component, thereby ensuring that the scoring structure produced by grinding and brushing is not leveled. This layer system has proven to be particularly suitable.
- a further metallic layer is provided between the ground and the brushed layer.
- the further metallic layer may consist of nickel and the overlying, brushed layer of chromium.
- the chrome layer is brushed in the last step, which was finally applied galvanically to the component.
- There does not have to be any extra Cover layer can be applied to the surface-treated layer and it can be saved in the galvanization process, a step.
- a further embodiment of the present invention is characterized in that the base component is a metallic component produced in particular by the die-casting method.
- the base member may further be made of a zinc alloy.
- Die casting components can be produced in a simple way and inexpensively in large quantities.
- a high degree of freedom of form is given for components that are produced by die-casting. Even curved shapes can be realized, for example, in a simple way.
- plastic base component which has an electrically conductive surface. This can be obtained in a conventional manner by suitable pretreatment of the plastic component.
- a galvanically applied metallic intermediate layer is provided on the electrically conductive surface of the base member and the ground metallic layer is applied to the intermediate layer.
- the intermediate layer consists of copper or a copper alloy and / or zinc or a zinc alloy. The intermediate layer provides an optimum surface for subsequent plating steps.
- the component is subjected to the necessary pretreatments in a conventional manner. Also between the individual electroplating steps, the component can be subjected to necessary treatments which are known to the person skilled in the art.
- All of the metal layers mentioned here may be layers of alloys of the respective metals.
- the term used for the chrome plating includes, for example, the application of metal layers of chromium alloys.
- the FIG. 1 shows a galvanically coated component according to the present invention.
- the component comprises a base component 1, which is produced by die-casting and consists of a zinc alloy.
- a base component 1 which is produced by die-casting and consists of a zinc alloy.
- On the base member 1 a total of four superimposed metallic layers 2, 3, 4, 5 are applied galvanically.
- the lower two layers are an intermediate layer 2 and an overlying layer 3, both made of a copper alloy, wherein the Surface of the upper layer 3 is ground.
- the scoring structure in the ground layer 3 is in FIG. 1 clearly visible in the sectional view.
- Above the ground layer 3 is a brushed layer 4, which consists of nickel and has a finer ridge structure.
- the cover layer 5 of the component consists of chromium here.
- the base member 1 is provided with an intermediate layer 2, which in FIG. 3a is shown.
- the component is galvanized, wherein the metallic layer 3 is applied from a copper alloy on the component.
- the surface of the applied layer 3 is then ground by an abrasive having a grain size ⁇ 180. In the illustrated embodiment, an average grain size of about 60 is used.
- the component is galvanized again in order to apply to the ground layer 3, the further metallic layer 4 made of nickel.
- the nickel layer 4 has a thickness that remains substantially constant over the surface of the component and that the scoring structure of the underlying ground layer 3 is not leveled, but rather in this layer 4 reflected.
- the nickel layer 4 is then brushed, whereby additionally a fine scoring structure is applied to the surface of the component.
- the metallic cover layer 5 is finally applied galvanically to the component.
- This likewise has a thickness that remains essentially constant over the surface of the component, which ensures that the scoring structure produced by means of grinding and brushing is retained and is deposited in the cover layer 5.
- This is in FIG. 1 clearly visible.
- the surface of the resulting component is characterized by an excellent feel.
- the in FIG. 3 shown galvanically coated component can be produced.
- the component is identical to the one in the polished layer 3 FIG. 1 shown.
- a further metallic layer 6 is provided, which consists of nickel.
- FIGS. 4a to 4e To complete the ground layer 3 are in the FIGS. 4a to 4e shown method steps identical to those of the already described embodiment ( FIGS. 2a to 2c ).
- the further metallic layer 6 is applied galvanically to the ground layer 3. This has a thickness that remains essentially constant over the surface of the component, so that the scoring structure of the underlying ground layer 3 is reflected in this further metallic layer 6.
- This layer 6 is not subsequently surface-treated, however, but the further metallic layer 4 of chromium is applied directly to the component and then brushed.
- Another (top) layer does not have to be applied to the component.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein galvanisch beschichtetes Bauteil mit einem Basisbauteil, das eine elektrisch leitende Oberfläche aufweist, und mit mehreren metallischen Schichten, die übereinanderliegend auf das Basisbauteil galvanisch aufgebracht sind, wobei wenigstens eine Schicht eine mechanisch bearbeitete Oberfläche besitzt. Des Weiteren betrifft die Erfindung ein Verfahren zur Herstellung derartiger Bauteile.The present invention relates to a galvanically coated component having a base component, which has an electrically conductive surface, and with a plurality of metallic layers, which are applied to one another superimposed on the base component, wherein at least one layer has a machined surface. Furthermore, the invention relates to a method for producing such components.
Im Bereich der Oberflächenbeschichtung spielt das Metallisieren der Oberfläche von Bauteilen mittels galvanotechnischer Verfahren eine wichtige Rolle. Bei der Galvanisierung handelt es sich um ein elektrochemisches Verfahren, bei dem eine Metallschicht auf ein Bauteil mit einer elektrisch leitenden Oberfläche abgeschieden wird. Hierfür werden im Allgemeinen Elektrolyte verwendet. Diese bestehen aus wässrigen Lösungen ionischer Verbindungen der abzuscheidenden Metalle, sowie weiteren Bestandteilen, wie Laugen, Säuren und Additiven. Die Bauteile werden nach einer geeigneten Vorbehandlung in ein Elektrolytbad eingetaucht, und infolge des Anlegens einer äußeren Spannung scheidet sich ein Metallüberzug auf dem Bauteil ab. Auf diese Weise können beispielsweise Chrom-, Nickel-, Zink-, oder Edelmetallschichten oder aber auch Legierungsschichten auf Bauteile aufgebracht werden.In the field of surface coating, the metallization of the surface of components by means of electroplating processes plays an important role. Electroplating is an electrochemical process in which a metal layer is deposited on a device having an electrically conductive surface. For this purpose, electrolytes are generally used. These consist of aqueous solutions of ionic compounds of the metals to be deposited, as well as other constituents, such as alkalis, acids and additives. The components are immersed in an electrolyte bath after a suitable pretreatment, and a metal coating is deposited on the component as a result of the application of an external voltage. That way you can For example, chromium, nickel, zinc, or noble metal layers or even alloy layers are applied to components.
Die galvanische Aufbringung der metallischen Schichten kann sowohl funktional als auch ästhetisch motiviert sein. Die funktionale Galvanotechnik stellt auf den Schutz von Bauteilen vor Korrosion und Verschleiß bzw. eine Verbesserung der elektrischen Leitfähigkeit insbesondere der Oberfläche ab. Auch die Bereitstellung einer vergleichsweise harten Oberfläche kann durch Galvanisierung erreicht werden.The galvanic application of the metallic layers can be both functionally and aesthetically motivated. The functional electroplating technology focuses on the protection of components against corrosion and wear or an improvement in the electrical conductivity, in particular of the surface. The provision of a comparatively hard surface can also be achieved by electroplating.
Im Rahmen der dekorativen Galvanotechnik wird die Metallisierung von Oberflächen durchgeführt, um ästhetische Ansprüche zu erfüllen. Bauteile aus Kunststoff können beispielsweise verchromt werden, um einen wertigen optischen Eindruck hervorzurufen. Infolge der Verchromung zeichnen sich die Bauteile durch einen hohen Glanz aus und wirken edel und solide. Dabei werden an die Güte der galvanisch beschichteten Bauteile hohe Anforderungen gestellt. Sie müssen sich durch exzellente Oberflächeneigenschaften auszeichnen, und es muss eine hohe Flexibilität bezüglich der Gestaltungsmöglichkeiten vor allem der Oberfläche der Bauteile gegeben sein.As part of the decorative electroplating, the metallization of surfaces is carried out to meet aesthetic requirements. Plastic components can be chrome plated, for example, to create a valuable visual impression. As a result of the chrome plating, the components are characterized by a high gloss and look noble and solid. High demands are placed on the quality of the galvanically coated components. They must be characterized by excellent surface properties, and there must be a high degree of flexibility with regard to the design possibilities, especially of the surface of the components.
Besonders in der Automobilindustrie und im Sanitärbereich besteht ein großer Bedarf nach solchen Gegenständen, die sich insbesondere durch ein auffälliges Design von gängigen Produkten absetzen. Dabei reicht es vielfach nicht mehr aus, Oberflächen beispielsweise durch Verchromen zu veredeln, sondern die Bestrebungen gehen dahin, die Oberflächen der Bauteile durch dekorative Strukturelemente zu gestalten. Dabei reicht es vielfach nicht mehr aus, Oberflächen beispielsweise durch Verchromen zu veredeln, sondern die Bestrebungen gehen dahin, die Oberflächen der Bauteile dekorativ zu gestalten. Dabei wird über die bloße optische Gestaltung hinaus auch darauf abgezielt, optimale haptische Eigenschaften zu erhalten.Especially in the automotive industry and in the sanitary sector, there is a great need for such items that distinguish themselves in particular by a striking design of common products. In many cases, it is no longer sufficient to refine surfaces, for example, by chrome plating, but efforts are being made to design the surfaces of the components using decorative structural elements. In many cases, it is no longer sufficient to refine surfaces, for example, by chrome plating, but efforts are being made to make the surfaces of the components decorative. In addition to the mere visual design, the aim is to obtain optimal haptic properties.
Die Bestrebungen gehen ferner dahin Bauteile zu erzeugen, die über ihre Optik und Haptik den Eindruck erwecken, aus einem bestimmten, wertigen Metall gefertigt zu sein, obwohl sie nicht oder zumindest nicht gänzlich aus diesem Metall bestehen.The aspirations go further to produce components that give the impression through their look and feel, to be made of a particular, valuable metal, although they are not or at least not entirely made of this metal.
Ein Verfahren zur Herstellung eines Bauteils, welches sich durch eine edelstahlähnliche Optik auszeichnet, wird beispielsweise in der
Ausgehend von diesem Stand der Technik ist es eine Aufgabe der vorliegenden Erfindung, ein galvanisch beschichtetes Bauteil anzugeben, welches die Optik und Haptik eines Bauteils aus gebürstetem Aluminium aufweist. Weiterhin soll ein Verfahren zur Herstellung eines derartigen galvanisch beschichteten Bauteils angegeben werden.Based on this prior art, it is an object of the present invention to provide a galvanically coated component which has the look and feel of a brushed aluminum component. Furthermore, a method for producing such a galvanically coated component is to be specified.
Diese Aufgabe wird erfindungsgemäß durch ein galvanisch beschichtetes Bauteil der eingangs genannten Art gelöst, welches sich dadurch auszeichnet, dass die Oberfläche wenigstens einer der metallischen Schichten durch wenigstens ein Schleifmittel mit einer Körnung < 180 geschliffen ist, und die Oberfläche wenigstens einer weiteren darüber liegenden metallischen Schicht gebürstet ist.This object is achieved by a galvanically coated component of the type mentioned above, which is characterized in that the surface of at least one of the metallic layers is ground by at least one abrasive having a grain size <180, and the surface of at least one other overlying metallic layer brushed.
Hergestellt werden kann ein derartiges Bauteil, indem erfindungsgemäß die folgenden Schritte absolviert werden:
- es wird ein Basisbauteil mit einer elektrisch leitenden Oberfläche zur Verfügung gestellt,
- das Basisbauteil wird galvanisiert, wobei wenigstens eine metallische Schicht auf das Bauteil aufgebracht wird,
- die Oberfläche der wenigstens einen metallischen Schicht wird durch ein Schleifmittel mit einer Körnung < 180 geschliffen,
- das erhaltene Bauteil wird galvanisiert, wobei wenigstens eine weitere metallische Schicht auf das Bauteil aufgebracht wird,
- die wenigstens eine weitere metallische Schicht wird gebürstet.
- a base component with an electrically conductive surface is provided,
- the base component is galvanized, wherein at least one metallic layer is applied to the component,
- the surface of the at least one metallic layer is ground by an abrasive with a grain size <180,
- the resulting component is galvanized, wherein at least one further metallic layer is applied to the component,
- the at least one further metallic layer is brushed.
Es hat sich gezeigt, dass die Optik und Haptik von gebürstetem Aluminium hergestellt werden kann, indem mehrere metallische Schichten übereinander liegend auf ein Bauteil galvanisch aufgebracht werden, wobei eine der Schichten mit einem Schleifmittel feiner bzw. mittlerer Körnung geschliffen wird und eine weitere darüber liegende Schicht gebürstet wird. Die durch das Schleifen erzeugte Riefenstruktur wird bei der Aufbringung der weiteren Schichten nicht eingeebnet, sondern setzt sich in diese durch. Im Ergebnis resultiert die Zusammenwirkung von Schleifen und Bürsten in den übereinander liegenden metallischen Schichten des Bauteils in das gewünschte optische Erscheinungsbild der Oberfläche. Auch die haptischen Eigenschaften des Bauteils sind infolge der Riefenstruktur in der Oberfläche exzellent.It has been found that the look and feel of brushed aluminum can be made by electroplating several metallic layers one above the other onto a component, one of the layers being ground with a fine or medium grit abrasive, and another overlying layer is brushed. The scoring structure produced by the grinding is not leveled during the application of the further layers, but penetrates into them. As a result, the interaction of loops and brushes results in the superimposed metallic layers of the component in the desired visual appearance of the surface. Also, the haptic properties of the component are excellent due to the ridge structure in the surface.
Für die geschliffene Schicht wird ein weiches Metall wie Kupfer, oder aber eine weiche Metalllegierung, wie weiches Messing verwendet. Dies gewährleistet, dass unter Verwendung des Schleifmittels eine ausgeprägte und gleichmäßige Riefenstruktur in die Oberfläche dieser Schicht eingebracht werden kann. Darüber hinaus kann die geschliffene Schicht zusätzlich gebürstet sein.For the ground layer, a soft metal such as copper or a soft metal alloy such as soft brass is used. This ensures that a pronounced and uniform scoring structure can be introduced into the surface of this layer using the abrasive. In addition, the ground layer can be additionally brushed.
Unter Anwendung des erfindungsgemäßen Verfahrens kann in erheblichem Maße Material eingespart werden, da das Bauteil nicht als Ganzes aus Aluminium gefertigt werden muss, um die gewünschte Optik zu erhalten. Vielmehr kann auf die Verwendung von Aluminium gänzlich verzichtet werden.Substantially less material can be saved using the method according to the invention since the component does not have to be manufactured as a whole from aluminum in order to obtain the desired appearance. Rather, the use of aluminum can be completely dispensed with.
Die Körnung des verwendeten Schleifmittels ist kleiner 180, was bedeutet, dass weniger als 180 Körner pro Zoll vorhanden sind. Die Korngröße beträgt demzufolge etwa 140 µm.The grain size of the abrasive used is less than 180, which means there are less than 180 grains per inch. The grain size is therefore about 140 microns.
In vorteilhafter Ausgestaltung der Erfindung kann die Oberfläche der geschliffenen Schicht durch ein Schleifmittel mit einer Körnung< 150, einer Körnung < 120, einer Körnung < 80 oder einer Körnung < 60 geschliffen sein. Diese Körnungen haben sich als besonders geeignet erwiesen, um eine authentische Optik von gebürstetem Aluminium herzustellen.In an advantageous embodiment of the invention, the surface of the ground layer can be ground by an abrasive with a grain size <150, a grain size <120, a grain size <80 or a grain size <60. These grits have proven to be particularly suitable for producing an authentic look of brushed aluminum.
Gemäß eines Ausführungsbeispiels der Erfindung besteht die geschliffene Schicht aus Kupfer oder einer Kupferlegierung, wie Messing, oder aus Nickel oder Zinn. Die gebürstete Schicht kann ferner aus Nickel bestehen und auf diese kann eine metallische Deckschicht aufgebracht sein, die aus Chrom besteht. Die Deckschicht weist eine über die Oberfläche des Bauteils im Wesentlichen konstant bleibende Dicke auf, wodurch gewährleistet wird, dass die durch Schleifen und Bürsten hergestellte Riefenstruktur nicht eingeebnet wird. Dieses Schichtsystem hat sich als besonders geeignet herausgestellt.According to one embodiment of the invention, the ground layer consists of copper or a copper alloy, such as brass, or of nickel or tin. The brushed layer may further consist of nickel and on these may be applied a metallic cover layer consisting of chromium. The cover layer has a thickness which remains substantially constant over the surface of the component, thereby ensuring that the scoring structure produced by grinding and brushing is not leveled. This layer system has proven to be particularly suitable.
Alternativ kann vorgesehen sein, dass zwischen der geschliffenen und der gebürsteten Schicht eine weitere metallische Schicht vorgesehen ist. Die weitere metallische Schicht kann aus Nickel und die darüber liegende, gebürstete Schicht aus Chrom bestehen. Bei dieser Ausführungsform wird im letzten Arbeitsschritt die Chromschicht gebürstet, die abschließend galvanisch auf das Bauteil aufgebracht wurde. Es muss keine zusätzliche Deckschicht auf die oberflächenbehandelte Schicht aufgebracht werden und es kann im Rahmen des Galvanisierungsprozesses ein Arbeitsschritt eingespart werden.Alternatively it can be provided that between the ground and the brushed layer, a further metallic layer is provided. The further metallic layer may consist of nickel and the overlying, brushed layer of chromium. In this embodiment, the chrome layer is brushed in the last step, which was finally applied galvanically to the component. There does not have to be any extra Cover layer can be applied to the surface-treated layer and it can be saved in the galvanization process, a step.
Eine weitere Ausführungsform der vorliegenden Erfindung zeichnet sich dadurch aus, dass das Basisbauteil ein insbesondere im Druckgussverfahren hergestelltes metallisches Bauteil ist. Das Basisbauteil kann ferner aus einer Zinklegierung bestehen. Druckgussbauteile lassen sich auf einfachem Wege und kostengünstig in großen Stückzahlen herstellen. Darüber hinaus ist bei Bauteilen, die im Druckgussverfahren gefertigt werden ein Hohes Maß an Formgebungsfreiheit gegeben. Auch geschwungene Formen können beispielsweise auf einfachem Wege realisiert werden.A further embodiment of the present invention is characterized in that the base component is a metallic component produced in particular by the die-casting method. The base member may further be made of a zinc alloy. Die casting components can be produced in a simple way and inexpensively in large quantities. In addition, a high degree of freedom of form is given for components that are produced by die-casting. Even curved shapes can be realized, for example, in a simple way.
Alternativ kann auch ein Basisbauteil aus Kunststoff verwendet werden, welches eine elektrisch leitfähige Oberfläche aufweist. Diese kann in an sich bekannter Weise durch geeignete Vorbehandlung des Kunststoffbauteils erhalten werden.Alternatively, it is also possible to use a plastic base component which has an electrically conductive surface. This can be obtained in a conventional manner by suitable pretreatment of the plastic component.
Gemäß eines Ausführungsbeispiels der Erfindung ist auf der elektrisch leitenden Oberfläche des Basisbauteils eine galvanisch aufgebrachte metallische Zwischenschicht vorgesehen und die geschliffene metallische Schicht ist auf die Zwischenschicht aufgebracht. Darüber hinaus kann vorgesehen sein, dass die Zwischenschicht aus Kupfer oder einer Kupferlegierung und/oder aus Zink oder einer Zinklegierung besteht. Durch die Zwischenschicht wird eine optimale Oberfläche für die anschließenden Galvanisierungsschritte bereitgestellt.According to one embodiment of the invention, a galvanically applied metallic intermediate layer is provided on the electrically conductive surface of the base member and the ground metallic layer is applied to the intermediate layer. In addition, can be provided that the intermediate layer consists of copper or a copper alloy and / or zinc or a zinc alloy. The intermediate layer provides an optimum surface for subsequent plating steps.
Im Rahmen des Galvanisierungsverfahrens wird das Bauteil in an sich bekannter Weise den notwendigen Vorbehandlungen unterzogen. Auch zwischen den einzelnen Galvanisierungsschritten kann das Bauteil erforderlichen Behandlungen unterzogen werden, die dem Fachmann bekannt sind.As part of the galvanization process, the component is subjected to the necessary pretreatments in a conventional manner. Also between the individual electroplating steps, the component can be subjected to necessary treatments which are known to the person skilled in the art.
Bei allen hier genannten Metallschichten kann es sich um Schichten aus Legierungen der jeweiligen Metalle handeln. Der verwendete Begriff der Verchromung umfasst dabei beispielsweise auch die Aufbringung von Metallschichten aus Chromlegierungen.All of the metal layers mentioned here may be layers of alloys of the respective metals. The term used for the chrome plating includes, for example, the application of metal layers of chromium alloys.
Hinsichtlich weiterer vorteilhafter Ausgestaltungen und Weiterbildungen der Erfindung wird auf die Unteransprüche sowie die nachfolgende Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegende Zeichnung verwiesen. In der Zeichnung zeigt:
Figur 1- ein galvanisch beschichtetes Bauteil gemäß der vorliegenden Erfindung in schematischer Schnittdarstellung,
- Figuren 2a bis 2e
- die einzelnen Schritte bei der Durchführung des erfindungsgemäßen Verfahrens zur Herstellung des galvanisch beschichteten Bauteils gemäß
Figur 1 , Figur 3- ein alternatives galvanisch beschichtetes Bauteil gemäß der vorliegenden Erfindung in schematischer Schnittdarstellung, und
- Figuren 4a bis 4e
- die einzelnen Schritte bei der Durchführung des erfindungsgemäßen Verfahrens zur Herstellung des alternativen galvanisch beschichteten Bauteils gemäß
.Figur 3
- FIG. 1
- a galvanically coated component according to the present invention in a schematic sectional view,
- FIGS. 2a to 2e
- the individual steps in the implementation of the method according to the invention for the production of the electrodeposited component according to
FIG. 1 . - FIG. 3
- an alternative galvanically coated component according to the present invention in a schematic sectional view, and
- FIGS. 4a to 4e
- the individual steps in the implementation of the method according to the invention for the production of the alternative electrodeposited component according to
FIG. 3 ,
Die
Das Verfahren zur Herstellung eines galvanisch beschichteten Bauteils gemäß der vorliegenden Erfindung wird im Folgenden anhand der
Zunächst wird das Basisbauteil 1 mit einer Zwischenschicht 2 zur Verfügung gestellt, welches in
In an sich bekannter Weise wird abschließend die metallische Deckschicht 5 auf das Bauteil galvanisch aufgebracht. Diese weist ebenfalls eine über die Oberfläche des Bauteils im Wesentlichen konstant bleibenden Dicke auf, wodurch gewährleistet wird, dass die mittels Schleifen und Bürsten erzeugte Riefenstruktur erhalten bleibt und sich in der Deckschicht 5 niederschlägt. Dies ist in
Alternativ kann gemäß der vorliegenden Erfindung das in
Das Verfahren zur Herstellung dieses galvanisch beschichteten Bauteils gemäß der vorliegenden Erfindung wird im Folgenden anhand der
Zur Fertigstellung der geschliffenen Schicht 3 sind die in den
Im Rahmen dieser Ausführungsform wird ein Arbeitsschritt eingespart, da zwischen dem Aufbringen der weiteren metallischen Schicht 6 und der darüber liegenden zu bürstenden Schicht 4 keine mechanische Bearbeitung der Oberfläche stattfindet, für welche das Bauteil aus dem Galvanisierungsbad entnommen werden muss.In the context of this embodiment, a work step is saved, since between the application of the further
Claims (14)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202011103736U DE202011103736U1 (en) | 2011-07-27 | 2011-07-27 | Galvanically coated component |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2551383A2 true EP2551383A2 (en) | 2013-01-30 |
EP2551383A3 EP2551383A3 (en) | 2014-12-24 |
Family
ID=46466236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12175116.8A Withdrawn EP2551383A3 (en) | 2011-07-27 | 2012-07-05 | Galvanically coated component and method for producing same |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2551383A3 (en) |
DE (1) | DE202011103736U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016142005A1 (en) * | 2015-03-11 | 2016-09-15 | Gerhardi Kunststofftechnik Gmbh | Galvanically decorated component made of plastic, and method for producing a plastic component having a structured surface |
DE102015006552A1 (en) | 2015-05-21 | 2016-11-24 | Audi Ag | Method for producing a component with a structured surface for an operating device of a motor vehicle |
DE102015011404A1 (en) | 2015-08-29 | 2017-03-16 | Audi Ag | Component for an operating device of a motor vehicle with a partially structured surface |
DE102015007663B4 (en) | 2015-06-16 | 2023-10-19 | Audi Ag | Method for producing a component for a motor vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10303649A1 (en) | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Coating of objects such as plastic sprays comprises application of a layer of copper, nickel or a copper-nickel alloy, mechanical surface treatment of at least the outer applied layer and application of a nickel-tungsten layer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL189310C (en) * | 1984-05-18 | 1993-03-01 | Toyo Kohan Co Ltd | COATED STEEL SHEET WITH IMPROVED WELDABILITY AND METHOD FOR MANUFACTURING. |
US4787112A (en) * | 1987-08-28 | 1988-11-29 | Usx Corporation | Edge brush for electroplated strip |
DE10303650A1 (en) * | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Coating of objects such as plastic sprays comprises application of a layer of copper, nickel or a copper-nickel alloy, mechanical surface treatment of at least the outer applied layer and application of a palladium-nickel layer |
DE10303648A1 (en) * | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Surface coating of the metal surfaces of sanitary fittings, for protection against corrosion, uses an initial layer of copper/nickel which is brushed/sand blasted, for a further layer of nickel-tungsten or palladium-nickel |
DE10312308A1 (en) * | 2003-03-19 | 2004-10-07 | Blanco Gmbh + Co Kg | Process for the production of sanitary fittings with a stainless steel finish |
ATE497033T1 (en) * | 2006-02-27 | 2011-02-15 | Hdo Druckguss Und Oberflaechentechnik Gmbh | METHOD FOR PRODUCING AN EMBOSSED AND GALVANIZED DIE-CAST COMPONENT |
-
2011
- 2011-07-27 DE DE202011103736U patent/DE202011103736U1/en not_active Expired - Lifetime
-
2012
- 2012-07-05 EP EP12175116.8A patent/EP2551383A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10303649A1 (en) | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Coating of objects such as plastic sprays comprises application of a layer of copper, nickel or a copper-nickel alloy, mechanical surface treatment of at least the outer applied layer and application of a nickel-tungsten layer |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016142005A1 (en) * | 2015-03-11 | 2016-09-15 | Gerhardi Kunststofftechnik Gmbh | Galvanically decorated component made of plastic, and method for producing a plastic component having a structured surface |
CN107636208A (en) * | 2015-03-11 | 2018-01-26 | 格哈迪塑胶技术有限责任公司 | The structure member galvanically decorated being made up of plastics and the method for manufacturing the plastic construction part with structured surface |
CN107636208B (en) * | 2015-03-11 | 2020-03-27 | 格哈迪塑胶技术有限责任公司 | Galvanically decorated structural part made of plastic and method for producing a plastic structural part with a structured surface |
US10927471B2 (en) | 2015-03-11 | 2021-02-23 | Gerhardi Kunststofftechnik Gmbh | Galvanically decorated component made of plastic, and method for producing a plastic component having a structured surface |
US20210079549A1 (en) * | 2015-03-11 | 2021-03-18 | Gerhardi Kunststofftechnik Gmbh | Galvanically decorated component made of plastic, and method for producing a plastic component having a structured surface |
DE102015006552A1 (en) | 2015-05-21 | 2016-11-24 | Audi Ag | Method for producing a component with a structured surface for an operating device of a motor vehicle |
DE102015007663B4 (en) | 2015-06-16 | 2023-10-19 | Audi Ag | Method for producing a component for a motor vehicle |
DE102015011404A1 (en) | 2015-08-29 | 2017-03-16 | Audi Ag | Component for an operating device of a motor vehicle with a partially structured surface |
Also Published As
Publication number | Publication date |
---|---|
EP2551383A3 (en) | 2014-12-24 |
DE202011103736U1 (en) | 2012-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2412848B1 (en) | Method for producing a sheet metal part from a high tensile sheet metal material with a zinc-nickel coating applied by means of electrolysis | |
EP1587968B1 (en) | Coating method | |
EP2192210B1 (en) | Multilayer of precious metals for decorative items | |
DE1771323A1 (en) | Process for coating metal surfaces with a fluorine-containing polymer | |
DE102005041375A1 (en) | Method of producing decorative surface structures or patterns on objects of decorative layer on sanitary involves metal layer, partial removal of this, e.g. by electromagnetic radiation, and deposition toned down surface structure | |
EP2551383A2 (en) | Galvanically coated component and method for producing same | |
DE102016208184A1 (en) | Method for generating a plurality of electrical current paths on a workpiece | |
DE3127505A1 (en) | METHOD FOR AT LEAST PARTIAL METALIZING OF A SURFACE OF A LAYER STRUCTURE | |
DE3024875A1 (en) | METHOD FOR SHEATHING METAL SHELVES | |
DE19807823A1 (en) | Process for the production of a corrosion-protective coating and layer system for substrates made of light metal | |
DE102012213455B4 (en) | Process for forming an anti-corrosion layer on the surface of a CFRP component | |
DE19723980B4 (en) | Continuous, computer-controlled process for the production of black-chromed, surface-defect-free, complete injection-molded parts made of magnesium alloys with electrically conductive and optimally adhesive surface areas and application of this method | |
EP3879007A1 (en) | Method for producing a coated component | |
EP1675974A2 (en) | Workpieces coated with an aluminum/magnesium alloy | |
DE1163115B (en) | Process for the production of corrosion-resistant galvanic coatings from chromium with the aid of intermediate layers | |
WO2008000583A1 (en) | Sheet metal and metal for producing sheet metal | |
EP3170925B1 (en) | Method for producing a metal surface | |
EP3517655A1 (en) | Method for black chromium plating | |
WO2010102808A2 (en) | Workpiece with at least one nickel-containing layer | |
DE19809802A1 (en) | Process for surface treatment of aluminum or the like | |
DE4311005C1 (en) | Window mount and method for manufacturing it | |
DE726204C (en) | Moldings with precious metal coatings | |
DE202011103540U1 (en) | Galvanically coated component | |
DE202011103567U1 (en) | Galvanically coated component | |
DE885037C (en) | Process for coating strongly profiled objects with galvanic deposits, especially those made of copper |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C25D 5/40 20060101ALI20141114BHEP Ipc: C25D 5/48 20060101ALI20141114BHEP Ipc: C25D 5/14 20060101AFI20141114BHEP Ipc: C25D 5/12 20060101ALI20141114BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20150625 |