EP1902161A1 - Elektrodenanordnung und verfahren zum elektrochemischen beschichten einer werkstückoberfläche - Google Patents
Elektrodenanordnung und verfahren zum elektrochemischen beschichten einer werkstückoberflächeInfo
- Publication number
- EP1902161A1 EP1902161A1 EP06777644A EP06777644A EP1902161A1 EP 1902161 A1 EP1902161 A1 EP 1902161A1 EP 06777644 A EP06777644 A EP 06777644A EP 06777644 A EP06777644 A EP 06777644A EP 1902161 A1 EP1902161 A1 EP 1902161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- workpiece
- micro
- electrodes
- electrode assembly
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 111
- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 title claims abstract description 51
- 239000002105 nanoparticle Substances 0.000 claims abstract description 45
- 239000011859 microparticle Substances 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims description 86
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 description 32
- 238000009826 distribution Methods 0.000 description 15
- 239000003792 electrolyte Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 238000005422 blasting Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- 241000937413 Axia Species 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/10—Electrodes, e.g. composition, counter electrode
Definitions
- the present invention relates to a method for electro ⁇ chemical coating a workpiece surface, wherein ro- micro- or nanoscale particles are incorporated in the coating.
- the invention relates to a counter electrode arrangement for the electrochemical treatment of a workpiece, in which the workpiece forms a working electrode.
- Such methods and devices which can be used, for example, when re-coating turbine blades with a protective layer against corrosion and / or oxidation, are known, for example, from EP 0 748 883 A1 and EP 1 094 134 A1.
- EP 0 748 883 A1 describes a method for producing galvanic layers, in which the component to be coated is introduced into a galvanic bath.
- the galvanic bath ⁇ African nanoparticles are incorporated, are incorporated into the coating, the Sieren when Galvani ⁇ .
- the bath is stirred constantly. Only such a ho ⁇ such distribution of the nanoparticles may be provided in the coating.
- EP 1 094 134 A1 describes an electrochemical device for removing a coating from a workpiece.
- the device comprises a container into which an electrolyte can be introduced.
- the workpiece to be machined ⁇ piece is introduced as a working electrode in the form of an anode in the electrolytic bath.
- a number of cathodes are arranged, which form counter electrodes to the anode.
- electrochemical machining a voltage is built up between the workpiece as the working electrode and the counter electrodes.
- the counterelectrodes can be specially shaped with regard to the workpiece to be machined.
- a further object of the present invention is to provide a counter-electrode arrangement which can be used with particularly high flexibility and with which the method according to the invention can be carried out.
- the first object is achieved by a method according to claim 1, the second object by a counter electrode arrangement according to claim 7.
- the dependent claims contain advantageous embodiments of the invention.
- an electroplating a workpiece surface whereby micro- or na ⁇ noskalige particles are incorporated into the coating.
- a workpiece surface whereby micro- or na ⁇ noskalige particles are incorporated into the coating.
- the blasting medium comprises the introduced micro- or nanoscale particles.
- the jets allow the micro- or nanoscale particles to be brought close to the workpiece surface to be coated, without the need for a galvanic bath with the micro- or nanoscale particles.
- the particles are brought by the beams in the vicinity of the surface to be coated during coating, wherein due to the variety of radiation
- the homogeneous coating of larger surface contents or complicated geometries is also possible.
- a constant stirring of the galvanic bath is not necessary here.
- the jet medium alone is formed by the micro- or nanoscale particles.
- the micro- or nanoscale particles are dispersed in an electrolytic treatment solution.
- the jet medium is formed by the treatment solution with the particles dispersed therein.
- the amount of micro- or nanoscale particles introduced into the coating can be adjusted in the process according to the invention by way of the jet pressure, that is to say the pressure with which the jet medium is supplied to the surface.
- the jet pressure that is to say the pressure with which the jet medium is supplied to the surface.
- a continuous or a pulsating pressure curve can be used.
- the number of incorporated particles can thus be increased or reduced.
- the jet pressure is varied during the electrochemical coating, a gradient of the particle density in the electrochemically produced coating or a coating with multiple layers, which differ from one another by their particle densities, can be produced.
- the pressure amplitude continu ously ⁇ is thereby varied while coating for producing a Multilagen- the pressure amplitude is varied abruptly.
- Multilayer coating can also be created by varying the composition of the jet media during coating. For example, it is possible during the coating of micro- or nanoscale particles of a To change to a variety of micro- or nanoscale particles of another variety. This transition can be either fluid or sudden. In the case of a fluid change of the particle type, a smooth transition from one type of particle to the other type of particle is present in the finished coating. When the switching of the Strahlzusammenset ⁇ wetting the other hand takes place abruptly, it can be a so Be ⁇ produce coating, wherein the individual layers differ from one by the type of microparticles or nanoparticles with each other a plurality of layers.
- the variation of the jet composition can also be combined with a variation of the jet pressure, so that in addition to the nature of the incorporated particles and their density varies in the finished coating.
- the inventive method increases the flexibi ⁇ formality the manufacture of coatings with embedded micro- or nanoscale particles.
- the coating properties can be specifically changed during the production of the coating.
- completely new coating systems are possible.
- a counterelectrode arrangement according to the invention for the electrochemical treatment of a workpiece which in particular makes it possible to carry out the method according to the invention, comprises a number of process electrodes, the workpiece forming a working electrode.
- the counter electrode arrangement furthermore comprises a process medium supply device for supplying a process medium, which may in particular comprise micro- or nanoscale particles, to the process electrodes.
- the process electrodes are formed as tube-like elements with channels extending in their interior. They each have an end facing the process medium supply device and an end facing away from the process medium supply device with an opening arranged therein. In the region of the ends of the tube-like elements facing the process-medium supply device, the channels are in each case in communication with the process-medium supply device.
- the channels open electrodes in the openings of the process ⁇ .
- the configuration of the process electrodes as tubular elements and the channels arranged therein make it possible to target a process medium, such as micro- or nanoscale particles or a mixture of a chemical treatment solution and micro- or nanoscale particles dispersed therein, as a jet medium in the form of a jet between the process electrodes and the working electrode as the workpiece. In this way, an effective use of the micro- or nanoscale particles can take place during coating.
- a process medium such as micro- or nanoscale particles or a mixture of a chemical treatment solution and micro- or nanoscale particles dispersed therein
- the channels taper in the region in front of the openings.
- the so-tapered opening cross-section leaves a arise nozzle-like opening, which ensures a homogeneous mixing of the micro- or nanoscale particles in the electrochemical treatment solution in the vicinity of the opening.
- the quality of the jet for example the shape of the jet and / or the energy of the jet and / or the amount of emerging jet medium, can be selectively influenced by a suitable structural design of the jet, in particular by a suitable choice of the shape of the channels in the area the openings and / or the shape of the openings themselves with regard to the quality of the beam to be achieved.
- the counterelectrode arrangement can comprise an adjusting device for adjusting the pressure of the process medium in the process-medium feed device.
- the tube-like elements of the process electrodes are guided through a common wax-filled carrier. They have securing elements, for example, in the circumferential direction of the tubular elements of the process electrodes extending ribs, which secure them against axial displacement relative to the wax in the solidified state.
- the embodiment described enables an advantageous method for adapting the process electrode arrangement to the geometry of the workpiece to be machined.
- the wax is liquefied and the process electrode assembly is pressed against the workpiece with liquified wax.
- Process electrodes in the wax shifted so that the positions of the free ends of the process electrodes adapt to the geometry of the workpiece surface.
- the wax is solidified again, so that the process electrodes in be fixed in their position.
- the result is a counter electrode arrangement optimally adapted to the geometry of the surface of the workpiece to be machined.
- This adaptation is particularly important for non-planar workpieces and in the area of concave and convex corners.
- concave and convex corners can be processed particularly well if the tube-like elements of the process electrodes have a needle shape.
- the counter electrode arrangement can also be used particularly advantageously in the case of a needle-like configuration of the tube-like elements in the chemical treatment of holes in the workpiece.
- the tube-like elements of the process electrodes are guided through holes of at least one common carrier plate. Between the edges of the holes and the respective tubular elements there is a slight clearance, which is dimensioned so that it allows an undisturbed axia ⁇ le displacement of the tubular elements. Furthermore, a clamping device is provided, with the help of which the tubular elements can be pressed with a force against the edges of the holes such that they are secured due to the friction occurring against axial displacement relative to the support plate.
- the counter electrode assembly in the second constructive embodiment can guide die in the first constructive characterized From the working to be ⁇ workpiece be adapted to the geometry of the surface that it is pressed against the workpiece.
- the tensioning device is in the relaxed state, so that the tubular elements of the process electrodes can move axially within the holes.
- the Clamping tensioned After the position of the free electrode ends is adapted to the geometry of the workpiece surface, the Clamping tensioned so that the tubular elements are pressed against the edges of the holes, whereby they are secured against further axial displacement.
- the counter electrode arrangement according to the invention can be used particularly flexibly in the electrochemical treatment of workpieces.
- the counter electrode arrangement according to the invention is particularly variable for each workpiece shape used. Special purpose electrodes for certain workpiece shapes can therefore be dispensed with.
- Fig. 1 shows an arrangement for carrying out an embodiment of the method according to the invention.
- Fig. 2 shows a first embodiment for the dung OF INVENTION ⁇ proper counter electrode assembly.
- FIG 3 shows a second exemplary embodiment of the counterelectrode arrangement according to the invention.
- FIG. 1 shows a workpiece 1, which may be formed in particular as Turbi ⁇ nenschaufel.
- a turbine blade is typically made from a high temperature nickel base alloy or a cobalt base alloy.
- so-called MCrAlY coatings for corrosion and / or oxidation protection are applied to turbine blades.
- MCrAlY coating M stands for iron (Fe), cobalt (Co) or nickel (Ni) and Y for yttrium (Y) and / or silicon (Si) and / or at least one element of the rare earth or hafnium
- MCrAlY compositions are known, for example, from EP 0 486 489 B1, EP 0 786 017 Bl, EP 0 412 397 B1 or EP 1 306 454 A1. These documents are therefore referred to for possible compositions of the coating.
- the arrangement shown in Fig. 1 for the coating of the workpiece 1 itself comprises next to the workpiece 1 is a Elect ⁇ clearing arrangement 9 as well as a container filled with an electrolyte 3 container 5 in which both the workpiece 1 and the electrode assembly 9 are arranged.
- the arrangement comprises a voltage source 7, the negative pole is electrically lei ⁇ tend connected to the workpiece 1, so that it forms a cathode.
- the cathode, ie the workpiece 1 forms the working electrode of the arrangement.
- the positive pole of the clamping ⁇ voltage source 7 is, however, connected to the electrode assembly 9 so that it becomes the anode, and forms the counter electrode to the working electrode. Due to the between the work ⁇ piece 1 and the counter electrode assembly 9 attached chipboard voltage builds up between the counter electrode assembly and the workpiece 1, an electric field on, which ported positive gela ⁇ dene ions to the negatively charged surface of the workpiece trans ⁇ .
- the electrolyte 3 which is an electrolytic treatment solution
- ions are solves the base material of the workpiece ge ⁇ .
- nickel ions or cobalt ions are dissolved in the electrolyte 3.
- the positively charged metal ions migrate to the workpiece surface 2 and are deposited there to egg ⁇ ner coating.
- micro- or nanoscale particles are incorporated into the coating. This is done by inducing a dispersion 4 of the micro- or nanoscale particles to be incorporated in the electrolyte 3 between the counter-electrode arrangement 9 and the surface 2 of the workpiece 1. Particles adjoining the surface 2 of the workpiece 1 are incorporated into the coating during the electrochemical deposition of the metal ions.
- the supplied particles can comprise particles of several locations, one particle type, wherein ⁇ play Cr particles, Y particles, Al particles, Re ⁇ particles, etc. or a mixture thereof.
- the counter electrode arrangement 9 is equipped with a number of tubular elements 11, which form the process electrodes 12 of the counter electrode arrangement 9.
- the tubular elements 11 have an axially extending channel 13, which opens into an opening 14 in the workpiece 1 facing the end of the tubular element 11.
- the cross section of the channel 13 tapers.
- the other end of the tubular element 11 communicates with a distributor tank 17, which is micro- and / or wet via an inflow 19, which in the present embodiment is an inflow pipe. noskalige particles can be supplied.
- the micro- or nanoscale particles are introduced under pressure via the inflow 19 into the distribution tank 17. Due to the pressure, the particles flow through the channel 13 to the opening 14 and pass through them into the electrolyte 3 in the region between the counter-electrode arrangement 9 and the workpiece 1. Due to the nozzle-like openings 14 of the standing in communication with the manifold tank 17 tubular elements 11 a homogeneous mixing, the particles in the electrolyte or a targeted illumination of the workpiece surface 2 with the Parti ⁇ angles during deposition of the dissolved metal ions reached. The micro- or nanoscale particles can be transported at a certain pressure through the nozzle-like openings 14 to the workpiece surface 2.
- the particles are supplied to the distribution tank dispersed in the electrolyte. From the nozzle-like opening 14 therefore exits an electrolyte jet with dispersed micro- or nanoscale particles as the blasting medium.
- the pressure conditions in the distribution tank 17 can be adjusted for example via the pressure in the inflow 19. Both continuous pressures and pulsating pressures are possible.
- Control the pressure may in this case both the Druckamplitu ⁇ de and the frequency include pulsating pressures.
- multi-layer systems can also be produced by the method according to the invention, wherein the individual layers of the coating system can differ from one another both in terms of the density of the incorporated micro- or nanoscale particles and in the type of micro- or nanoscale particles.
- Such layers can in particular be produced without having to interrupt the electrochemical coating process in order to exchange the galvanic bath.
- To produce coatings with a plurality of coatings that differ from each other in the nature of the particles only the distribution tank 17 is required be filled successively with micro- or nanoscale particles of different kind during the process. Each time a layer is completed, the next particle type is filled in the distribution tank 17.
- Coatings with layers which differ from one another due to the incorporation density of the particles can be produced by continuously changing the pressure conditions in the distribution tank 17. It should be noted at this point that the method according to the invention can also be used to produce multi-layer systems which differ from one another by the nature of the particles and have a graded or abrupt change in the density of the incorporated particles. This is possible since the type of particles introduced into the distribution tank 17 and the pressure in the distribution tank 17 can be regulated independently of each other.
- the counter electrode arrangement 9 comprises a plurality of tubular elements IIa to He, which form tubular process electrodes 12a to 12e.
- the process electrodes 12a to 12e can be connected to the pole of a voltage source via a line (not shown in FIG. 2). All of the process electrodes 12a to 12e are connected at one end to the distribution tank 17 in such a way that a process medium, for example an electrolyte with dispersed micro ⁇ or nanoscale particles, through the channels 13 in the interior of the process electrodes 12a to 12e (see FIG 1) can flow to the outlet openings 14a to 14e.
- a process medium for example an electrolyte with dispersed micro ⁇ or nanoscale particles
- the counter electrode arrangement 9 also comprises a number of measuring electrodes 21, which are electrically insulated from the process electrodes 12a to 12e.
- the measuring electrodes 21 form the Referenzelektro- whose electrode tips 22 are free of contact to the surface 2 of the workpiece 1 and which serve for monitoring the elekt ⁇ step parameter during the electrochemical deposition process.
- the measuring electrodes 21, like the process electrodes 11, may be formed as tubular elements. Alternatively, however, it is also possible to form the measuring electrodes 21 as full electrodes, ie without an inner channel.
- the process electrodes 12a to 12e extending in the axial direction by a space filled with wax 27 carrier 29.
- the carrier 29 has a first, the manifold tank 17 facing carrier plate 31 and a second manifold tank 17 meet ⁇ turned support plate 33.
- Both support plates 31, 33 have holes which allow axial displacement of the process electrodes 12a to 12e against the support plates 31, 33 and which are sealed against escape of liquid wax 27 from the support 29.
- the individual process electrodes 12 to 12 e are provided with flange-like projections 35, 37 and 39 in the region of those sections which are located inside the carrier 29, which secure the process electrodes 12 a to 12 e with solidified wax 27 against an axial displacement relative to the carrier 29 ,
- the described process electrode arrangement 9 can be adapted to the geometry of the workpiece surface 2 in an advantageous manner.
- the wax 27 is liquefied in the carrier 29, for example via a heater 29 arranged in the carrier 29, or via heating of the electrolyte 3 in the container 5, so that axial displacement of the process electrodes 12a to 12c is achieved 12e relative to the carrier 29 is possible.
- the counter electrode assembly 9 is pressed with light pressure against the workpiece 1, so that the position of the openings 14a to 14e of the individual process electrodes 12a to 12e adapt to the geometric shape of the workpiece 1.
- a cooling of the wax 27 is brought about, so that the ⁇ ses solidifies and the process electrodes 12a to 12e secures against axial displacement relative to the carrier 29.
- the counter electrode assembly 9 is again carried away from the workpiece 1, taking care that the relative orientation of the counter electrode assembly 9 to the workpiece 1 is maintained.
- the elektrochemi ⁇ -specific deposition of the coating can be effected.
- compliance with constant electrical parameters can be monitored.
- the electrode assembly 9 according to the invention can be in the manner described particularly well to the geometry of ⁇ piece 1 business adjust, without the need to specially made for this purpose a specially ge ⁇ shaped electrode. Due to the sliding surfaces ⁇ removal of the various openings 14a to 14e of the process electrodes 12a to 12e from the workpiece 1, a uniform distribution can be achieved in the coating of the towards the surface blasted micro- or nanoscale particles.
- FIG. 1 A second exemplary embodiment of the process electrode arrangement 90 according to the invention is shown in FIG.
- the process electrode assembly 90 of the second embodiment differs from the process electrode assembly 9 of the first embodiment only by the Ausges- lay out your carrier 129.
- the other design features of the second embodiment such as the Pro ⁇ zesselektroden 12a to 12e, the distribution tank 17 or the measuring electrode 21 are therefore the same reference numerals loading is characterized as the corresponding design parameters th ers ⁇ embodiment, and will at this Do not explain again.
- the carrier 129 comprises a first carrier plate 131 facing the distributor tank 17 and a second carrier plate 133 applied to the distributor tank 17. Both carrier plates have openings whose size is selected such that between the edges of the openings and through the carrier plates 131 133 passing process electrodes IIa to He remains a game that allows axial displacement of the process electrodes 12a to 12e relative to the carrier 129.
- nere extend adjustment plates 134, 136, 138, which also have openings such dimen ⁇ are sized to allow the process electrodes are to 12e with clearance passed through it 12a.
- the adjustment plates 134, 136, 138 therefore also do not impede an axial displacement of the process electrodes 12a to 12e in a first state.
- the possible axial displacement of the process electrodes 12a to 12e is limited only by flange-like projections 135, 137, 139 in the region of the process electrodes 12a to 12e which is located inside the carrier 129.
- the adjustment plates 134, 136, 138 are held on two sides by a frame 140, against which the central adjustment plate 136 can be displaced. The shift of
- Adjustment plate 136 is parallel to the adjustment plates 134 and 138 and perpendicular to the direction of axial displacement of the process electrodes 12a to 12e.
- the frame 140 has a fixing unit 142, for example in the form of a or a plurality of fixing screws, which allows fixing the position of the central adjustment plate 136 relative to the position of the two outer Justageplatten 134, 138.
- the process electrode assembly 90 of the second embodiment can be adapted to the geometry of the workpiece 1 ⁇ the by the central adjustment plate is brought to a position 136 in which the holes in the individual adjustment plates 134, 136, 138 as well as the holes in the two carrier plates 131, 133 are centered relative to each other so that their openings are arranged in alignment with each other.
- the counter-electrode arrangement 90 is pressed against the workpiece 1 with slight pressure in such a way that it bears against the workpiece 1 with the ends of the process electrodes 12a to 12e provided with the openings 14a to 14e.
- the geometry of the workpiece 1 thereby ensures an axial displacement of the process electrodes 12a to 12e, which leads to an adaptation of the position of the openings 14a to 14e to the geometry of the workpiece.
- the middle adjustment plate 136 is displaced parallel to the two outer Justa ⁇ geplatten 134, 138, so that the openings of the Justageplatten 134, 136, 138 are no longer aligned.
- the process electrodes 12a to 12e are pressed against one side of the hole edges of the outer adjustment plates 134, 138.
- the process electrodes 12a to 12e are pressed against the hole edges of the middle adjustment plate. Since the hole edges of the outer adjustment plates 134, 138 press in the opposite direction as the hole edges of the middle Justa- geplatte 136 against the process electrodes 12 a to 12 e, the process electrodes 12 a to 12 e between the hole edges of the outer Justageplatten 134, 138 on the one hand and the hole edges of inner adjustment plate 136 on the other hand clamped.
- the middle adjustment plate 136 is in this Condition fixed by means of the fixing device 142. In this way, the process electrodes 12a to 12e are secured against axial displacement. With the piece so the geometry of the plant 1 ⁇ adjusted counter electrode assembly 9, the electrochemical coating process is then performed as described with reference to the first embodiment.
- the two outer adjustment plates 134, 138 displaceable and to configure the middle adjustment plate 136 immovably.
- the adjustment plates reticulated new constructions ⁇ nen to use are made of cords or cables and which meshes, through which the portions of the process the electric ⁇ located in the interior of the support are passed. By clamping the individual cables or wires against one another, the opening cross-section of the meshes can be reduced so that the wires or cables press against the outside of the process electrodes and thus provide friction preventing the axial displacement of the process electrodes.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005033857A DE102005033857A1 (de) | 2005-07-12 | 2005-07-12 | Elektrodenanordnung und Verfahren zum elektrochemischen Beschichten einer Werkstückoberfläche |
PCT/EP2006/064014 WO2007006752A1 (de) | 2005-07-12 | 2006-07-07 | Elektrodenanordnung und verfahren zum elektrochemischen beschichten einer werkstückoberfläche |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1902161A1 true EP1902161A1 (de) | 2008-03-26 |
EP1902161B1 EP1902161B1 (de) | 2012-08-29 |
Family
ID=36968928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06777644A Active EP1902161B1 (de) | 2005-07-12 | 2006-07-07 | Elektrodenanordnung und verfahren zum elektrochemischen beschichten einer werkstückoberfläche |
Country Status (7)
Country | Link |
---|---|
US (1) | US8747638B2 (de) |
EP (1) | EP1902161B1 (de) |
JP (1) | JP2009501276A (de) |
CN (1) | CN101223304A (de) |
DE (1) | DE102005033857A1 (de) |
DK (1) | DK1902161T3 (de) |
WO (1) | WO2007006752A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070275262A1 (en) * | 2006-05-23 | 2007-11-29 | Dechao Lin | Reducing formation of tin whiskers on a tin plating layer |
CN101717977B (zh) * | 2009-12-08 | 2011-09-14 | 淮海工学院 | 高硬度Cu-SiC纳米复合镀层的制备方法及其专用设备 |
CN102787332B (zh) * | 2012-08-17 | 2014-12-24 | 湖北联合天诚防伪技术股份有限公司 | 一种喷银板贴板电铸的方法 |
US10697079B2 (en) | 2015-12-25 | 2020-06-30 | Yamamoto-Ms Co., Ltd. | Plating device |
CN105970260B (zh) * | 2016-04-25 | 2019-05-03 | 江苏师范大学 | 一种在喷射电沉积加工过程中改善均匀性的方法 |
CN106868572B (zh) * | 2017-04-25 | 2019-07-09 | 广东工业大学 | 一种电泳辅助微纳颗粒熔融自组装表面改性设备 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU67358A1 (de) | 1973-04-04 | 1974-05-09 | ||
US4027366A (en) * | 1973-08-02 | 1977-06-07 | Beatrice Foods Co. | Multilayer coated substrate |
US4826508A (en) * | 1986-09-15 | 1989-05-02 | Diabrasive International, Ltd. | Flexible abrasive coated article and method of making it |
DE59301228D1 (de) | 1992-03-06 | 1996-02-08 | Frei Siegfried | Verfahren und Vorrichtung zur Überwachung des Sprühstromes in einer Pulverbeschichtungsanlage |
JP3391113B2 (ja) | 1994-10-07 | 2003-03-31 | 豊田合成株式会社 | 複合めっき方法 |
US5865976A (en) * | 1994-10-07 | 1999-02-02 | Toyoda Gosei Co., Inc. | Plating method |
DE19521323A1 (de) * | 1995-06-12 | 1996-12-19 | Abb Management Ag | Teil mit einer galvanisch aufgebrachten Beschichtung und Verfahren zur Herstellung von galvanischen Schichten |
DE19702366C2 (de) * | 1996-01-24 | 2002-10-31 | Toyoda Gosei Kk | Beschichtungsverfahren |
DE19821781C2 (de) * | 1997-05-15 | 2002-07-18 | Toyoda Gosei Kk | Beschichtungsverfahren und Beschichtungsgerät zur Herstellung dreidimensionaler Metallgegenstände |
US6352636B1 (en) * | 1999-10-18 | 2002-03-05 | General Electric Company | Electrochemical system and process for stripping metallic coatings |
DE10250471B3 (de) | 2002-10-30 | 2004-04-01 | Lindal Ventil Gmbh | Anlage zur Antikorrosionsbehandlung von Ventiltellern für Spenderbehälter |
US20040084318A1 (en) * | 2002-11-05 | 2004-05-06 | Uri Cohen | Methods and apparatus for activating openings and for jets plating |
-
2005
- 2005-07-12 DE DE102005033857A patent/DE102005033857A1/de not_active Withdrawn
-
2006
- 2006-07-07 JP JP2008520855A patent/JP2009501276A/ja not_active Abandoned
- 2006-07-07 US US11/995,122 patent/US8747638B2/en active Active
- 2006-07-07 CN CNA2006800254779A patent/CN101223304A/zh active Pending
- 2006-07-07 EP EP06777644A patent/EP1902161B1/de active Active
- 2006-07-07 DK DK06777644.3T patent/DK1902161T3/da active
- 2006-07-07 WO PCT/EP2006/064014 patent/WO2007006752A1/de active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2007006752A1 * |
Also Published As
Publication number | Publication date |
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DK1902161T3 (da) | 2012-10-15 |
EP1902161B1 (de) | 2012-08-29 |
US8747638B2 (en) | 2014-06-10 |
JP2009501276A (ja) | 2009-01-15 |
CN101223304A (zh) | 2008-07-16 |
DE102005033857A1 (de) | 2007-01-18 |
WO2007006752A1 (de) | 2007-01-18 |
US20080202936A1 (en) | 2008-08-28 |
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