WO2003096859A2 - Procede de fabrication d'objets sanitaires en plastique galvanise - Google Patents

Procede de fabrication d'objets sanitaires en plastique galvanise Download PDF

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Publication number
WO2003096859A2
WO2003096859A2 PCT/EP2003/005152 EP0305152W WO03096859A2 WO 2003096859 A2 WO2003096859 A2 WO 2003096859A2 EP 0305152 W EP0305152 W EP 0305152W WO 03096859 A2 WO03096859 A2 WO 03096859A2
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WO
WIPO (PCT)
Prior art keywords
sanitary
layer
water
metallization
power source
Prior art date
Application number
PCT/EP2003/005152
Other languages
German (de)
English (en)
Other versions
WO2003096859A3 (fr
Inventor
Klaus Schulze-Berge
Friedrich Kernberger
Original Assignee
Hansgrohe Ag
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Filing date
Publication date
Application filed by Hansgrohe Ag filed Critical Hansgrohe Ag
Priority to AU2003227752A priority Critical patent/AU2003227752A1/en
Publication of WO2003096859A2 publication Critical patent/WO2003096859A2/fr
Publication of WO2003096859A3 publication Critical patent/WO2003096859A3/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1646—Characteristics of the product obtained
    • C23C18/165—Multilayered product
    • C23C18/1653—Two or more layers with at least one layer obtained by electroless plating and one layer obtained by electroplating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1603—Process or apparatus coating on selected surface areas
    • C23C18/1605—Process or apparatus coating on selected surface areas by masking
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
    • C23C18/2046—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by chemical pretreatment
    • C23C18/2073—Multistep pretreatment
    • C23C18/2086—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/22—Roughening, e.g. by etching
    • C23C18/24—Roughening, e.g. by etching using acid aqueous solutions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
    • C23C18/28—Sensitising or activating
    • C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/38—Coating with copper
    • 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
    • C25D5/02—Electroplating of selected surface areas
    • C25D5/022—Electroplating of selected surface areas using masking means
    • 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
    • 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
    • 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
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads

Definitions

  • the invention relates to a method for producing sanitary articles made of plastic with galvanically metallized surfaces and to the correspondingly produced sanitary articles.
  • Galvanized plastics i. H. Plastic materials with metallic coatings have become indispensable in the manufacture of sanitary ware.
  • ABS acrylonitrile-butadiene-styrene copolymer
  • chromium as the outermost covering layer
  • the production of galvanized plastic sanitary articles is to be carried out efficiently and inexpensively, in particular because of the unnecessary grinding and polishing effort, as is necessary with metal bodies. Added to this are the favorable design options through the use of plastic spraying technology as well as a considerable weight reduction compared to sanitary objects
  • the galvanized plastic sanitary articles mentioned are produced in process steps which are known in principle to the person skilled in the art.
  • a pretreatment process is usually necessary in order to make the plastic surface electrically conductive so that sufficient adhesion of the metal layers applied galvanically with current (ie with an external current source) to the plastic is ensured.
  • all surface areas of the treated object made evenly electrically conductive. This is mainly because the treatment solutions used for the electroless pretreatment have free access to all of the outer and inner surfaces of the article. In the case of sanitary articles, this means that the water-carrying areas with their corresponding surfaces become at least partially electrically conductive during this pretreatment.
  • the metals deposited in the galvanic metallization with an external power source can also be found on the corresponding surfaces of the water-carrying areas.
  • an external power source such as chromium
  • the object of the invention is to enable galvanic metallization with an external power source only in certain surface areas in sanitary articles made of plastic.
  • the deposition of metals in the galvanic metallization with an external power source, and in particular also in the electroless pretreatment steps, should be carried out in the water-carrying areas of the Sanitary object can be reliably prevented.
  • the measures taken should not adversely affect the decorative surfaces of the sanitary object and should be able to be integrated as seamlessly as possible into existing production processes.
  • the method mentioned at the outset is designed according to the invention in such a way that an electrically non-conductive cover layer or protective layer is applied to at least part of the surfaces of the plastic sanitary article before the galvanic metallization with an external power source.
  • This ensures that the conductivity required for the galvanic metallization with an external power source is interrupted for certain parts of the surfaces. This means that metal cannot be deposited by electricity on these surfaces.
  • the cover layers or protective layers are preferably applied in such a way that the water-carrying areas of the sanitary article are excluded from metal deposition with electricity.
  • the corresponding layers can be applied to suitable surface areas in which the water enters or exits the water-carrying areas of the sanitary object.
  • the water-carrying areas are quasi decoupled from the power line, and therefore galvanic metallization with current cannot take place.
  • the electrically non-conductive cover layer or protective layer is first applied and then the corresponding treatment steps are carried out in order to make the plastic sanitary article conductive.
  • at least the surfaces without a cover / protective layer, preferably all surfaces of the sanitary object are made electrically conductive. Then the further metal layers are then applied galvanically with current to the electrically conductive surfaces that are not “decoupled” by the cover / protective layers.
  • the last-described procedure has the advantage that the sanitary object can be treated galvanically (without current and with current) after the covering / protective layer has been applied in the so-called drive-through principle. This means that after the covering / protective layer has been applied, all the galvanic process steps can be carried out efficiently without the galvanic processes having to be interrupted.
  • the entire surface of the water-carrying areas of the sanitary article is provided with the cover / protective layer. Apart from the fact that this cannot be easily achieved with many sanitary articles, in most cases this will not be necessary. As already stated above, it is therefore preferred that only a part of the surfaces of the water-carrying areas is provided with a corresponding layer, for example corresponding (delimitation) areas at the water inlet and water outlet.
  • the method according to the invention is preferably designed such that the surfaces of the sanitary article are pretreated with an external power source before the galvanic metallization. This applies at least to the surfaces not provided with the cover / protective layer, but preferably for all surfaces. Pretreatment steps as are known from the prior art can be used here.
  • the pretreatment preferably comprises at least one degreasing or pickling step, a pretreatment with an oxidizing agent being particularly mentioned here.
  • an oxidizing agent being particularly mentioned here.
  • oxidizing agents can be used here, for example potassium permanganate solution, different agents being able to be selected depending on the plastic material used for the sanitary article.
  • Preferred oxidizing agents are acids, here treatment with
  • the pretreatment in the processes according to the invention preferably comprises at least one activation step, which usually follows the degreasing or pickling step. Activation can take place in several steps, with activation in two steps being preferred.
  • a so-called electroless chemical metallization is carried out in particular according to the invention as activation. Metals are deposited from suitable solutions without an external power source.
  • solutions for chemical metallization can be used that contain tin or palladium.
  • the solutions preferably contain tin ions, while the palladium can be present in the solutions in ionic form or also in metallic form (preferably colloidal).
  • the chemical metallization can be carried out with the aid of solutions that contain cobalt ions. These cobalt ions are then converted to cobalt sulfide in a second step.
  • a further electroless chemical metallization can preferably follow. Solutions containing copper ions and / or preferably nickel ions can then be used for this further metallization.
  • layers of nickel, copper or chromium are preferably applied in the galvanic metallization with an external current source, which follows in particular the pretreatment steps mentioned above.
  • Chromium should be mentioned as the preferred metal.
  • layers, and in particular outermost outer layers, of at least one noble metal or of binary, ternary or quaternary alloys of such metals are applied.
  • the advantages of such metals as layers, in particular cover layers, are obvious due to their chemical resistance. Gold and the metals of the group of the so-called platinum metals are mentioned as preferred noble metals.
  • the advantages of chromium plating as the outermost cover layer also need not be emphasized and are known to the person skilled in the art. In these embodiments, preference is also given to those in which layers of nickel and / or copper are located below the chrome top layer.
  • the method according to the invention can be designed such that after-treatment takes place after the galvanic metallization with an external power source.
  • This aftertreatment affects at least the surfaces provided with the electrically non-conductive cover / protective layer, but preferably all surfaces of the sanitary article.
  • the aftertreatment consists in particular of what is known as stripping, in which the conductive layer (metal layers) applied by electroless chemical deposition is removed again.
  • This stripping is preferably carried out by treating the corresponding surfaces with an oxidizing agent, in particular an oxidizing acid.
  • the oxidizing agent can in particular be nitric acid or solutions which in particular contain persulfate or hydrogen peroxide.
  • the stripping preferably removes all metal layers that have not been deposited with current.
  • the covering / protective layer applied according to the invention preferably consists of a polymer material, in particular of a lacquer. This polymer material can be selected depending on the chemicals used in the pretreatment steps. It goes without saying that the polymer material must have sufficiently good adhesion to the plastic material and sufficient chemical resistance to the chemicals used in the pretreatment steps.
  • the polymeric material must ensure that there is no electrically conductive bridge across the polymeric material between the surface areas to be electroplated and the surface areas not to be electroplated (the water-bearing areas).
  • Corresponding coating systems are known to the person skilled in the art and can be selected by him in a suitable manner.
  • paints are suitable, such as those used to repair defects on PVC-coated parts, e.g. B. electroplating frames can be used.
  • any coating that achieves the object of the invention is basically suitable.
  • the cover / protective layer (s) can in principle be applied in any manner.
  • polymer materials such as
  • painting is possible by brushing or spraying.
  • a preferred application can also be in an imprint exist, this printing can preferably be done in the so-called tampon printing process. This process is known to the person skilled in the art.
  • the sanitary object can consist of any plastic material that can be used in sanitary engineering.
  • plastic material that can be used in sanitary engineering.
  • these are preferably thermoplastics, with ABS (acrylonitrile-butadiene-styrene copolymer) in particular.
  • sanitary objects can be galvanized according to the invention.
  • Preferred sanitary items are sanitary
  • Outlet devices such as fittings, showers, hand showers and the like. These are preferably sanitary articles in which the water-carrying parts are injected at the same time during manufacture.
  • the invention also includes the corresponding sanitary objects themselves. These can be produced using the method described. They are characterized in particular by the fact that the surfaces of the water-carrying areas of the sanitary article are free of metals, as are usually used in galvanic metallization and in particular in their pretreatment steps. The surfaces of the water-carrying areas are preferably free of nickel, copper, chromium and free of precious metals.
  • the sanitary objects according to the invention are particularly characterized in that they have a covering / protective layer, in particular on at least part of the surfaces of the water-carrying areas. Normally, these layers can also be coated with outer layers after the galvanization Power source remain on the sanitary ware since they do not impair the function of the sanitary ware in any way. In this way it can also be seen that the corresponding sanitary object was produced with the aid of the method according to the invention.
  • the invention encompasses the described sanitary object with an applied covering / protective layer in the form of a semi-finished product. If the sanitary object is provided with the cover / protective layer before the pretreatment steps, it only wears this layer. It is then introduced in the form of this semi-finished product into the electroplating process (without current and then with current).
  • Fig. 1 is a schematic sectional view of a hand shower produced by the method according to the invention.
  • Fig. 2 is a schematic sectional view of a manufactured with the inventive method
  • FIG. 1 shows a sanitary object according to the invention in the form of a hand shower 1, which is produced in a conventional manner known to the person skilled in the art, using the injection molding process, preferably from ABS.
  • a hand shower 1 which is produced in a conventional manner known to the person skilled in the art, using the injection molding process, preferably from ABS.
  • the merging water-bearing areas 2a (water chamber) and 2b (water channel) with their associated (inner) surfaces In the functional state, water / drinking water flows through these water-carrying areas, specifically in the direction from the water inlet area (water inlet) 3 to the water outlet area (water outlet) 4.
  • a metal deposition in the water-carrying areas ie. H. on the (inner) surfaces of these areas.
  • covering / protective layers 5 and 6 are applied in area 3 of the water inlet and in area 4 of the water outlet.
  • the water-carrying areas in between are virtually decoupled from the conductivity in the case of galvanic metallization with an external current source.
  • no further metal deposition is possible with appropriate contact in the galvanic metallization with current on these surfaces. This is because there is essentially no charge flow across the covering / protective layers 5 and 6 acting as a barrier.
  • the contacting mentioned in the galvanic metallization with an external power source can, according to FIG. 1, preferably take place on inner surfaces of the water inlet area 3 or the water outlet area 4, for example on the areas designated by reference numerals 7a, 7b, 8a and 8b. These areas are of course (in relation to the water flow direction) in front of layer 5 or behind layer 6, in order to enable their function as a charge barrier.
  • the inner regions 7a, 7b, 8a and 8b are also preferred for the contacting because In this way, no external decorative surfaces of the hand shower 1 can be affected or even damaged by the contact.
  • the layers 5 and 6 can be provided on side surfaces or edge surfaces of the water inlet region 3 or the water outlet region 4. In the present case, these are circumferential, preferably circular circumferential layers on the outer edge surface of the water outlet area 4 (for example the water chamber) or the inner surface of the water inlet area 3.
  • Fig. 2 shows a further embodiment of the invention in the form of a discharge device 11.
  • This consists, for example, of a base body 12 with discharge part 13.
  • the other functional parts of the discharge device 11 are then inserted, for. B. the water chamber with actuating lever in the base body 12 and the aerator in the outlet part 13.
  • three cover / protective layers 14, 15 and 16 are shown in FIG. These separate the water-carrying areas of the outlet device 11 with their (inner) surfaces from the charge flow in a galvanic metallization with an external power source, so that no metal layers are deposited on the (inner) surfaces of these water-carrying areas.
  • FIG. 1 and in the description.
  • a hand shower, as shown in Fig. 1, made of ABS, e.g. B. Novodur P2MC (Bayer AG, Germany) or Ronfalin CP55 (BASF AG, Germany) is subjected to an application process for cover / protective layers before the entire galvanic treatment. This is done by tampon pressure on the edge of the water chamber (water outlet area) and at the end of the Brauseng riffes near the transition of the water supply hose to be screwed on later (water inlet area) in each case a locking ring made of paint is applied.
  • This paint is a common touch-up paint for the repair of defects in PVC-coated parts, such as those used for electroplating frames.
  • the electrical contacting in the subsequent electroplating steps carried out with current is carried out in such a way that this takes place only in hidden areas and not on outer (decorative) surfaces. Namely, no visible contact points of this contact should be visible later.
  • the shower body prepared with the tampon pressure runs through the entire electroplating process (in a drive-through principle), fixed on a suitable electroplating frame.
  • This electroplating process can look as follows:
  • the stains contain some fluorosurfactant such as FT248 (Bayer AG) for better wetting.
  • FT248 (Bayer AG)
  • the selective mechanism is already visible.
  • the outer areas have a nickel layer, the water chamber and the inner wall of the water guide channel have remained in the state of chemical nickel plating because the areas printed with lacquer represent an insulator.
  • Brightener system such as Cuprorapid 1518 (Fa. Enthone, Langenfeld)
  • Room temperature 1 min. can be supported cathodically, approx. 30 mA / dm 2
  • Items 15 and 16 can be integrated directly into the electroplating machine.
  • step 4 Replacement of step 4 with a colloidal Sn / Pd solution with a higher Pd concentration, e.g. B. 240 mg / l
  • the colloidal Sn / Pd solution can be replaced by a solution containing palladium sulfate, chromic acid and sulfuric acid.
  • the accelerator then contains an organic boron-hydrogen compound and sodium hypophosphite.
  • Pre-nickel (item 8), pickling (item 9), copper plating (item 10) are combined in one step in a sulfamate nickel bath.
  • Item 11 must not contain persulfate. H 2 S0 4 detection is sufficient.
  • Chrome is certainly the standard surface for sanitary fittings.
  • the cover layer could also consist of pure gold, hard gold, platinum, palladium, ruthenium, etc., as long as the cover layer is resistant to the stripping medium.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemically Coating (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Procédé de fabrication d'objets sanitaires en plastique à surfaces métallisées par galvanisation, selon lequel une couche de couverture ou de protection non électro-conductrice est déposée avant la métallisation galvanique à l'aide d'une source électrique externe sur au moins une partie des surfaces. Cette application de la couche est effectuée de préférence avant le traitement galvanique global afin que ce dernier puisse être effectué de préférence selon le principe en continu. La partie des surfaces qui est pourvue de cette couche correspond de préférence à au moins une partie des zones d'écoulement d'eau de l'objet sanitaire.
PCT/EP2003/005152 2002-05-17 2003-05-16 Procede de fabrication d'objets sanitaires en plastique galvanise WO2003096859A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003227752A AU2003227752A1 (en) 2002-05-17 2003-05-16 Method for producing galvanised sanitary objects made of plastic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10223081.1 2002-05-17
DE10223081A DE10223081A1 (de) 2002-05-17 2002-05-17 Verfahren zur Herstellung von galvanisierten Sanitärgegenständen aus Kunststoff

Publications (2)

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WO2003096859A2 true WO2003096859A2 (fr) 2003-11-27
WO2003096859A3 WO2003096859A3 (fr) 2005-03-24

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Country Link
AU (1) AU2003227752A1 (fr)
DE (1) DE10223081A1 (fr)
WO (1) WO2003096859A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128664A1 (fr) * 2005-06-03 2006-12-07 Hansgrohe Ag Procede pour produire des objets sanitaires galvanises en matiere plastique
DE102006042269A1 (de) * 2006-09-08 2008-03-27 Gerhardi Kunststofftechnik Gmbh Verfahren zum galvanischen Beschichten von Bauteilen aus Kunststoffen
ES2304858A1 (es) * 2006-10-20 2008-10-16 Doureca Productos Plasticos, Lda Procedimiento de metalizacion selectiva de plasticos crombales.
ES2304857A1 (es) * 2006-10-20 2008-10-16 Doureca Productos Plasticos Lda. Metodo de metalizacion selectiva de plasticos cromables.
EP2108716A2 (fr) * 2008-04-11 2009-10-14 Shenzhen Futaihong Precision Industry Co., Ltd. Procédé d'électrodéposition d'un substrat en plastique
EP2182090A1 (fr) * 2008-09-18 2010-05-05 Shenzhen Futaihong Precision Industry Co., Ltd. Boîtier et procédé de fabrication du boîtier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20120096A1 (it) 2012-06-26 2013-12-27 C. Procedimento per la realizzazione di un componente di valvolame o di rubinetteria

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FR2093993A1 (en) * 1970-06-03 1972-02-04 Showa Denko Kk Partly plated plastic mouldings - by covering parts - of the moulding with non-etchable synthetic resin
DE2058476A1 (de) * 1970-11-27 1972-08-10 Wmf Wuerttemberg Metallwaren Verfahren zum partiellen Metallisieren von Kunststoffoberflaechen

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DE19510855C2 (de) * 1995-03-17 1998-04-30 Atotech Deutschland Gmbh Verfahren zum selektiven oder partiellen elektrolytischen Metallisieren von Substraten aus nichtleitenden Materialien
JP2002212780A (ja) * 2001-01-19 2002-07-31 Ishikawa Kinzoku Kogyo Kk プラスチックへの部分めっき方法

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FR2093993A1 (en) * 1970-06-03 1972-02-04 Showa Denko Kk Partly plated plastic mouldings - by covering parts - of the moulding with non-etchable synthetic resin
DE2058476A1 (de) * 1970-11-27 1972-08-10 Wmf Wuerttemberg Metallwaren Verfahren zum partiellen Metallisieren von Kunststoffoberflaechen

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DATABASE WPI Section Ch, Week 200276 Derwent Publications Ltd., London, GB; Class M11, AN 2002-701286 XP002315241 & JP 2002 212780 A (ISHIKAWA KINZOKU KOGYO KK) 31. Juli 2002 (2002-07-31) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128664A1 (fr) * 2005-06-03 2006-12-07 Hansgrohe Ag Procede pour produire des objets sanitaires galvanises en matiere plastique
DE102005026633A1 (de) * 2005-06-03 2006-12-28 Hansgrohe Ag Verfahren zur Herstellung von galvanisierten Sanitärgegenständen aus Kunststoff
US8011100B2 (en) 2005-06-03 2011-09-06 Hansgrohe Ag Method for producing electroplated plastic sanitary articles
DE102006042269A1 (de) * 2006-09-08 2008-03-27 Gerhardi Kunststofftechnik Gmbh Verfahren zum galvanischen Beschichten von Bauteilen aus Kunststoffen
DE102006042269B4 (de) * 2006-09-08 2014-08-28 Automobile Patentverwaltungs- und -verwertungsgesellschaft mbH Verfahren zum galvanischen Beschichten von Trägerteilen aus Kunststoffen
ES2304858A1 (es) * 2006-10-20 2008-10-16 Doureca Productos Plasticos, Lda Procedimiento de metalizacion selectiva de plasticos crombales.
ES2304857A1 (es) * 2006-10-20 2008-10-16 Doureca Productos Plasticos Lda. Metodo de metalizacion selectiva de plasticos cromables.
EP2108716A2 (fr) * 2008-04-11 2009-10-14 Shenzhen Futaihong Precision Industry Co., Ltd. Procédé d'électrodéposition d'un substrat en plastique
EP2108716A3 (fr) * 2008-04-11 2014-03-05 Shenzhen Futaihong Precision Industry Co., Ltd. Procédé d'électrodéposition d'un substrat en plastique
EP2182090A1 (fr) * 2008-09-18 2010-05-05 Shenzhen Futaihong Precision Industry Co., Ltd. Boîtier et procédé de fabrication du boîtier

Also Published As

Publication number Publication date
DE10223081A1 (de) 2003-12-04
AU2003227752A8 (en) 2003-12-02
WO2003096859A3 (fr) 2005-03-24
AU2003227752A1 (en) 2003-12-02

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