EP2769937A1 - Dispositif et procédé de traitement électrochimique en continu d'objets - Google Patents

Dispositif et procédé de traitement électrochimique en continu d'objets Download PDF

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Publication number
EP2769937A1
EP2769937A1 EP14152602.0A EP14152602A EP2769937A1 EP 2769937 A1 EP2769937 A1 EP 2769937A1 EP 14152602 A EP14152602 A EP 14152602A EP 2769937 A1 EP2769937 A1 EP 2769937A1
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EP
European Patent Office
Prior art keywords
carrier
objects
treatment
longitudinal direction
electrolytic cell
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Withdrawn
Application number
EP14152602.0A
Other languages
German (de)
English (en)
Inventor
Michael Dartsch
Wilhelm Steckelbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reisser Schraubentechnik GmbH
Original Assignee
Reisser Schraubentechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reisser Schraubentechnik GmbH filed Critical Reisser Schraubentechnik GmbH
Publication of EP2769937A1 publication Critical patent/EP2769937A1/fr
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/16—Apparatus for electrolytic coating of small objects in bulk
    • C25D17/28—Apparatus for electrolytic coating of small objects in bulk with means for moving the objects individually through the apparatus during treatment
    • 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
    • C25D17/002—Cell separation, e.g. membranes, diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/003—Threaded pieces, e.g. bolts or nuts

Definitions

  • the invention relates to an apparatus and method for the continuous electrochemical treatment of articles.
  • the invention seeks to provide an improved apparatus and method for the continuous electrochemical treatment of articles.
  • a device for the continuous electrochemical treatment of articles with an elongated belt-like carrier having a top side and a bottom side, the carrier having through openings between its top side and its underside, at least one electrolytic cell being provided which is connected to the underside of the carrier is connected and having an anode or cathode, wherein at least one separating device is provided, wherein the separating means in a arranged in the top of the carrier state together with at least a portion of the top of the carrier at least partially the boundary of a treatment space for receiving to be treated Forms objects, wherein means for moving the separating means are provided to selectively arrange the separator in the region of the top of the carrier or to remove from the top of the carrier, and wherein Mi are provided for moving the objects to be treated along the top of the carrier.
  • a separating device which can be removed from the top of the carrier and can be arranged in the region of the top of the carrier.
  • the carrier is rigid and the objects to be treated are moved by suitable means in the transport direction relative to the carrier.
  • a treatment room for the objects to be treated is temporarily formed, this treatment room is then provided above the electrolytic cell, which is connected to the underside of the carrier.
  • this treatment room can then be removed or opened to further transport the treated articles on the support.
  • the treatment space on the top of the carrier is therefore provided only temporarily to treat the objects on the top of the carrier electrochemically.
  • the separators are removed and the then treated articles can be transported along the carrier.
  • the separating devices By means of the separating devices, excessive movement of the electrolyte in the treatment space is prevented. This can ensure high-quality, fast electrochemical treatment.
  • the band-like carrier is provided on its upper side with two side walls arranged parallel to one another, which form side walls of the treatment space at least in sections.
  • the separating means may be formed as a simple plates which extend transversely to the longitudinal direction of the carrier and between the side walls.
  • a treatment space can be produced.
  • the objects to be treated can be transported into the treatment room and also transported out again after the treatment.
  • a transport of the objects to be treated can take place in the longitudinal direction of the carrier continuously and also during the electrochemical treatment.
  • Suitable means are provided for the movement of the articles to be treated along the top of the carrier.
  • the separating device has at least two separating plates, which are arranged spaced apart from one another in the longitudinal direction of the carrier, so that the treatment space is formed between the separating plates, the two side walls and the upper side of the carrier.
  • the separating device has at least two doctor blades spaced apart from one another in the longitudinal direction of the carrier, wherein the means for moving the separating device are designed to place the doctoring devices on an upper side of the carrier and to move them in the longitudinal direction of the carrier.
  • doctor blades serve as seen in the longitudinal direction of the wearer front and rear boundary of the treatment room.
  • An underside of the treatment space is defined by the support or by the underlying electrolytic cells.
  • Sidewalls on the carrier may define the lateral boundaries of the treatment space. The squeegees are then moved into abutment with the side walls and in abutment with the top of the carrier in the longitudinal direction of the carrier.
  • a very narrow gap may be provided between the sidewalls and the squeegees, and between the squeegees and the top of the carrier, to ensure easy movement of the squeegees but still to ensure only a small outflow of electrolyte from the treatment space.
  • the means for moving the separator set each doctor in the region of a first end of the electrolytic cell on the top of the carrier or place the doctor immediately above the carrier, then move the doctor in the longitudinal direction of the carrier along the top of the carrier and remove the squeegee in the region of a second end of the electrolytic cell from the top of the carrier.
  • the treatment space between the two doctor blades can be moved continuously in the longitudinal direction of the carrier, wherein the treatment chamber is closed only with the placement of the doctor blade at the first end of the electrolytic cell in the region of the top of the carrier and with the removal of the doctor from the top of the carrier in the region of the second end of the electrolytic cell is opened again.
  • the treatment room can be moved along with the moving along the carrier, to be treated objects and the objects can be easily transported on the top of the carrier and transported out again.
  • the at least two doctor blades are arranged on a rotating conveyor, wherein the conveyor has at least two guide rollers and wherein the guide rollers are arranged in the region of the first end and the second end of the electrolytic cell and above the top of the carrier.
  • the circulating conveyor may be formed, for example, as a chain or as two parallel, circumferential chains.
  • the lower strand of the chain or chains is then used, the doctor blades parallel and in the longitudinal direction of the carrier and in the region of the top of the Carrier to lead.
  • the upper strand of the chain (s) then serves to retract the squeegees from the second end of the electrolytic cell to the first end of the electrolytic cell.
  • the at least one electrolytic cell has an anode and a cathode is provided on the separator.
  • the separating device has at least two doctor blades which are spaced apart from one another in the longitudinal direction of the carrier, wherein each doctor blade is provided with at least one cathode.
  • two cathodes and at least one anode are arranged in the treatment space or each treatment space, which is formed between two spaced doctor blades.
  • the cathodes are then arranged on a front and rear end of the treatment space in the longitudinal direction of the support, the anode being located in the region of the bottom of the treatment space, ie below the support in the electrolytic cell.
  • the doctor blades are formed as rubber or plastic plates and the cathode is in the form of a pushed onto the doctor blade clamp.
  • the cathode can be attached to the doctor in a very simple manner.
  • the clip is formed so that viewed in the longitudinal direction of the carrier, both on the front and the back of the doctor blade, a cathode is arranged.
  • Such formed cathodes are easy to assemble and easy to replace.
  • the means for moving the objects to be treated have actuators in order to set the carrier in vibration.
  • the objects to be treated can be moved in the longitudinal direction of the carrier, without the carrier would have to be formed as a circulating endless belt.
  • the carrier is vibrated by means arranged on its underside eccentrics, which move the objects to be treated on the top of the carrier continuously in the longitudinal direction of the carrier.
  • the carrier is inclined in the intended transport direction of the objects to be treated.
  • a slight inclination of the carrier in the intended transport direction can assist the movement of the objects to be treated.
  • a supply device for electrolyte is provided, whose outlet is arranged above the treatment space.
  • a feed device By means of such a feed device can be filled with electrolyte after closing the treatment chamber by arranging the separator in the top of the carrier.
  • the feeder can continue to work to maintain the level of the electrolyte in the treatment room.
  • only a small outflow of electrolyte from the treatment space also takes place during its movement along the carrier, so that only small amounts of electrolyte have to be refilled during the treatment itself.
  • the articles only have a weak electrolyte flow in the treatment space and, in particular, little turbulence of the electrolyte can be detected. Thereby, the speed and quality of the electrochemical treatment, for example, an electrolytic coating, can be kept high.
  • a membrane is arranged between an underside of the carrier and the electrolytic cell, the membrane being permeable to ions.
  • a membrane significantly improves the quality of the electrochemical treatment, for example an electrolytic coating, with the apparatus according to the invention by minimizing turbulence in the electrolyte.
  • the membrane is permeable to liquid only to a limited extent or even permeable to liquid. In the latter case, an exchange of the electrolyte be ensured in the electrolytic cell via suitable means.
  • the electrolytic cell is provided with spherical anodes, wherein a device for continuously refilling the spherical anodes is provided in the electrolytic cell.
  • an insoluble anode can also be provided.
  • separating device By arranging the separating device in the region of the upper side of the carrier to form a treatment space and removing it from the area of the upper side after the electrochemical treatment of the objects, a continuous electrochemical treatment of the objects can take place during the transport of the objects on the upper side of the carrier. Instead of placing the objects in an immovable and invariable treatment room and removing them again after the electrochemical treatment, the objects are continuously transported and the treatment space is built up around the objects by placing the separating device in the area of the top of the support and after the electrochemical treatment degraded again by the separator is removed from the top of the carrier. In a surprisingly simple manner, this makes it possible to realize a continuous electrochemical treatment of articles with high throughput and high quality.
  • the separating device is moved during the treatment of the objects in the longitudinal direction of the carrier.
  • the carrier may be vibrated to move the articles to be treated along the carrier.
  • Fig. 1 shows a schematic side view of an apparatus 10 for the electrochemical treatment of objects 12.
  • the objects 12 are only partially denoted by reference numerals and are intended to represent screws, nuts, washers, springs and the like.
  • the device 10 according to the invention all types of objects can be treated electrochemically, the device is provided and suitable in particular for the treatment of bulk material.
  • the articles 12 can be arranged in bulk on an upper side of a carrier 14.
  • the bed may well comprise several layers of objects 12.
  • the articles 12 are also moved relative to one another during the electrochemical treatment, so as to ensure that the articles 12 are electrochemically treated on all sides.
  • the carrier 14 is designed as a band-like, perforated carrier. Through holes 16 in the carrier 14 connect its top to the bottom and are in Fig. 1 only partially denoted by reference numerals.
  • a plurality of electrolytic cells 18 are arranged on a lower side of the carrier 14.
  • the electrolytic cells 18 are rigidly connected as a compact unit to the underside of the carrier 14, so that they move together with the carrier.
  • the electrolytic cells 18 each have an anode 20 and the individual electrolytic cells are separated by partitions 22 from each other. As a result, a flow of the electrolyte or turbulence in the electrolyte can be kept low during the electrochemical treatment.
  • a membrane 24 is provided between the electrolytic cells 18 and the underside of the carrier 14.
  • the membrane 24 is permeable to ions, but only very slightly permeable to liquid. This also allows a flow of the electrolyte and turbulence of the electrolyte can be significantly reduced, which favors the quality of the electrochemical treatment, such as an electrolytic coating, as well as the possible through the device 10 throughput of objects to be treated 12.
  • Fig. 1 In the presentation of the Fig. 1 are shown right and left of the electrolytic cells 18 schematically unbalance generator 26, which are connected to the underside of the carrier 14.
  • These unbalance generators can be designed, for example, as electric motors which set an imbalance in rotation.
  • the unbalance generator 26 vibrates the carrier 14, which vibrations then move the articles 12 to be treated along the top of the carrier. This movement takes place in a longitudinal direction 28 of the carrier, wherein the longitudinal direction 28 by two arrows in Fig. 1 is indicated and at the same time corresponds to the transport direction of the articles 12 along the carrier 14.
  • the objects to be treated 12 are also moved relative to each other, so that the entire outer surfaces of the objects to be treated 12 at least temporarily come into contact with the electrolyte and can be electrochemically treated on all sides, for example, can be coated.
  • the carrier 14 may additionally be slightly inclined in its longitudinal direction 28 and thus also in the transport direction. This supports the movement of the objects 12 to be treated on the upper side of the carrier 14 in its longitudinal direction 28.
  • the objects to be treated are moved over a first circulating conveyor belt 30, whose upper strand moves in the direction of transport 28, on the in Fig. 1 left end of the carrier 14 applied to this.
  • a further circulating conveyor belt 32 is provided, with which the then electrochemically treated objects 12 are transported in the transport direction 28.
  • An electrochemical treatment of the objects 12 takes place in two treatment rooms 34, 36.
  • the treatment rooms 34, 36 are each bounded by an upper side of the carrier 14 and side walls 38 of the carrier 14 and by two doctor blades 40, 42 and 44, respectively.
  • the in Fig. 1 Rear side wall of the carrier 14 shown, since the in Fig. 1 front side wall would at least partially obstruct the view of the objects 12 and the doctor blades 40, 42, 44.
  • the carrier 14 forms a channel in which the articles 12 are transported in the longitudinal direction 28.
  • the treatment space 34 is thus formed by the top of the carrier 14, the side walls 38 and by the facing surfaces of the doctor blades 40 and 42 and open at the top.
  • the treatment space 36 is formed by the upper side of the carrier 14, its side walls 38 and the mutually facing surfaces of the doctor blades 42 and 44 and also open at the top.
  • the two treatment rooms 34, 36 are each filled with electrolyte 46 and the objects to be treated in the treatment rooms 34, 36 are each completely below an electrolyte level.
  • the electrolyte level rises so high that the electrolyte flows over the upper edge of the doctor blades 40, 42, 54 and passes, for example, from the treatment chamber 36 into the treatment chamber 34 to effect its filling with electrolyte.
  • the electrolyte 46 is in communication with the electrolytic cells 18.
  • Cathodes are respectively provided on the doctor blades 40, 42 and 44, so that a current flow between the anodes 20 in the electrolytic cells 18 and the cathodes on the doctor blades 40, 42, 44 can take place. Since the electrolyte 46 in the treatment rooms 34, 36 completely surrounds the objects 12 to be treated, they are contacted and can be treated electrochemically. Since the objects 12 in the treatment rooms 34, 36 are constantly moved, both relative to each other and in the longitudinal direction 28 of the carrier 14, it is ensured that the articles 12 are electrochemically treated on all sides, for example electrolytically coated.
  • the doctor blades 40, 42, 44 and further doctor blades 48, 50, 52, 54 and 56 are equally spaced from each other on two circulating chains 58 which are guided over two pulleys 60, 62.
  • the first deflection roller 60 is above the support 14 and in the region of an in Fig. 1 left, first end of the electrolytic cells 18 are arranged.
  • the second deflection roller 62 is above the support 14 and in the region of in Fig. 1 right, second end of the electrolytic cells 18 are arranged.
  • the pulleys 60, 62 rotate counterclockwise for this purpose. At the same time it is ensured that the squeegees in the area of the first, in Fig. 1 left end of the electrolytic cells 18 are arranged in the region of the top of the carrier 14, then moved along the top of the carrier 14 and in the region of the second, in Fig. 1 right end of the electrolytic cells 18 are lifted off the top of the carrier 14 again.
  • the doctor blades 40, 42, 44 are thereby placed with their lower edge slightly on top of the carrier 14 and then slide along the top of the carrier 14 in the longitudinal direction 28. At the same time are the doctor blades 40, 42, 44 with their right and left edge on the side walls 38 at.
  • the treatment rooms 34, 36 are thereby formed substantially liquid-tight, since only a small amount of electrolyte between the doctor blade 40 and the carrier 14 and the side walls 38 in the representation of Fig. 1 can escape to the left. In the same way between the doctor 44 and the top of the carrier 14 and its side walls 38 only a small amount of electrolyte in the representation of Fig. 1 exit to the right.
  • the electrolyte can pass into the passage openings of the carrier 16, but the membrane 24 then prevents as far as possible that the electrolyte 46 passes through the membrane 24 into the electrolytic cells 18.
  • the membrane 24 is permeable to ions, so that upon application of a voltage between the anodes 20 and the cathodes on the doctor blades 40, 42, 44, an ion flow from the electrolytic cells 18 through the electrolyte 46 and the articles 12 to be treated may take place.
  • the articles 12 can be treated electrochemically, for example electrolytically coated.
  • the doctor blades 40, 42, 44 are moved in the longitudinal direction 28.
  • the treatment rooms 34, 36 are simultaneously moved along with the objects 12 arranged therein in the longitudinal direction 28.
  • the unbalance generator 26 ensure that the objects 12 need not necessarily be pushed by the doctor blades 40, 42, 44, but automatically in the longitudinal direction 28 move.
  • the treatment rooms 34, 36 are thus moved together with the objects 12.
  • the articles 12 are both pushed by the doctor blades 40, 42, 44 and moved by the vibrations of the carrier 14.
  • the device 10 of Fig. 1 is dimensioned so that an electrochemical treatment of the articles 12 can be completed during the movement of the articles 12 above the electrolytic cells 18. Once the items 12 so on the in Fig. 1 the right-hand arranged second end of the electrolytic cells 18 are reached, their electrochemical treatment is completed. As soon as the doctor 44 has reached the deflection roller 62, it is lifted off the upper side of the conveyor belt 14 by means of the chains 58, so that the treatment space 36 is opened. The electrolyte 46 located in the treatment chamber 36 thus runs to the right and passes through the passage openings 16 of the carrier 14 into a storage container 64. The storage container 64 is thus always filled with electrolyte 46.
  • the articles 12 remain on the top of the carrier 14 after completion of their electrochemical treatment, are moved further in the longitudinal direction 28 and then transferred from the right end of the carrier 14 to the circulating conveyor belt 32 and transported away. Subsequently, for example, rinsing operations of the articles 12 or further treatment steps can follow.
  • the electrolyte 46 in the reservoir 64 is pumped through a recycling unit / filter unit 66 continuously by means of a pump 68 and pumped to two filling devices 70, 72.
  • the filling devices 70, 72 may be designed as simple outlets or even slotted tubes in order to be able to top up the electrolyte with as little turbulence as possible.
  • the filling device 70 is arranged above the treatment space 34 and the filling device 72 is arranged above the treatment space 36.
  • the treatment space 34 is then filled with electrolyte 46 and during the movement of the treatment space 34 together with the doctor blades 40, 42 in the longitudinal direction 28, if necessary, electrolyte is refilled via the filling devices 70, 72 in order to keep the level of the electrolyte 46 in the treatment space 34 substantially constant.
  • the filling device 72 is not required for the initial filling of the treatment rooms 34, 36, but only for maintaining the level constant and can therefore be dimensioned accordingly.
  • the device 10 enables a continuous electrochemical treatment of objects.
  • the doctor blade 44 on the deflection roller 62 is lifted off the upper side of the carrier 14, the doctor blade 56 is essentially simultaneously arranged by means of the deflection roller 60 in the region of the upper side of the carrier 14, so that then a further treatment space between the doctor blade 56 and the doctor blade 40 is provided.
  • the rotation of the deflection rollers 60, 62 takes place so fast that the doctor blades are moved on the carrier 14 at the same speed as the objects 12.
  • the treatment space then formed between the squeegees 56 and 40 is filled with electrolyte via the nozzle device 70, and during the further movement of the squeegees 56, 40 and the articles 12 in the longitudinal direction 28, the electrochemical treatment of the objects 12 takes place.
  • the squeegee 40 at the in Fig. 1 arrived at the right end of the electrolytic cells 18, is lifted by means of the guide roller 62 and the objects 12 are further moved in the direction of the conveyor belt 32, whereas the Electrolyte 46 flows through the through holes 16 in the reservoir 64.
  • the presentation of the Fig. 2 shows in exploded view the structure of the electrolytic cells 18.
  • the electrolytic cells 18 have a trough-shaped liquid-tight working container 74, in which a plurality of anode receptacles with anodes 76 are arranged.
  • the anode receptacles may have a titanium grid 75, which extends through the length of the working container 74, at the bottom for anode contact.
  • the individual anode receptacle are limited by partitions 77, which stand up on the continuous titanium grid.
  • the container 74 is connected to a bottom of the carrier 14 with the interposition of a seal 78. Between the seal 78 and the underside of the carrier 14, the membrane 24 is still arranged.
  • the container 74 is then rigidly connected to the underside of the perforated carrier 14, the through-holes 16 of which are only partially shown, but extend over the entire surface of the carrier 14.
  • the electrolytic cells 18 thereby form a unit with the carrier 14.
  • the presentation of the Fig. 3 shows the device 10 of Fig. 1 in sections and schematically from the front.
  • the device 10 stands on a bottom surface 80 and is mounted on bearing blocks 82 so that the carrier 14 and connected to the carrier 14 side walls 38 can swing.
  • the unbalance generator 26 are in the representation of Fig. 3 for the sake of clarity not shown.
  • the electrolytic cells 18 are arranged on an underside of the carrier 14 provided with the through holes 16, the electrolytic cells 18 are arranged.
  • An electrolyte also fills the through-openings 16, thereby providing an electrically conductive connection between the electrolytic cells 18, through the membrane 24 and the through-openings, and the treatment space 36 above the top of the carrier 14.
  • the doctor blade 44 is provided with a cathode in the form of a metal clip 84.
  • the metal clip 84 has two respective T-shaped legs, wherein the transversely arranged roof beam of the T extends along a lower edge of the doctor blade 44, wherein this lower edge is seated on the upper side of the carrier 14.
  • the bracket 84 also forms on the in Fig. 3 behind the squeegee 44 a conductive cathode.
  • the bracket 84 is connected to a power supply, not shown.
  • the filling device 70 is filled with the electrolyte 46 from above into the treatment chamber 36.
  • the filling device 70 is shown only schematically and designed, for example, as a simple outlet or slotted tube in the longitudinal direction, so as to fill the electrolyte in the treatment chamber 36 so that as little turbulence arises.
  • An upper edge of the doctor blade 44 may be roof-shaped in order to cause little turbulence when the electrolyte strikes.
  • the doctor 44 sits with its lower edge on the top of the carrier 14 and is also at their side edges on the mutually facing inner surfaces of the side walls 38 at.
  • the treatment space 36 is thereby substantially sealed by means of the doctor blade 44, and even when the doctor blade 44 is moved along the upper side of the support 14, only a slight liquid loss occurs between the upper side of the support 14 and the doctor blade 44 or between the side walls 38 and the doctor blade 44 on.
  • the squeegee 44 is connected via carriers 86, which are shown only schematically, with the two circulating chains 58.
  • the circulating chains 58 run over the deflecting rollers 62, which are only shown in sections, in order, as shown in FIG Fig. 1 was described, the squeegee 44 first put on the top of the carrier 14, then move along the top of the carrier 14 and parallel thereto and then lift off again from the top of the carrier 14 and move back.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
EP14152602.0A 2013-02-20 2014-01-27 Dispositif et procédé de traitement électrochimique en continu d'objets Withdrawn EP2769937A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310202724 DE102013202724B3 (de) 2013-02-20 2013-02-20 Vorrichtung und Verfahren zur kontinuierlichen elektrochemischen Behandlung von Gegenständen

Publications (1)

Publication Number Publication Date
EP2769937A1 true EP2769937A1 (fr) 2014-08-27

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EP14152602.0A Withdrawn EP2769937A1 (fr) 2013-02-20 2014-01-27 Dispositif et procédé de traitement électrochimique en continu d'objets

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EP (1) EP2769937A1 (fr)
DE (1) DE102013202724B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114770035A (zh) * 2022-03-29 2022-07-22 杭州嘉翔高强螺栓股份有限公司 一种大六角螺栓的生产工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1819603A (en) * 1928-09-21 1931-08-18 Budd Wheel Co Electroplating apparatus
WO1998041676A2 (fr) * 1997-03-18 1998-09-24 C.V.G. Centro Veneto Galvanico S.R.L. Installation de traitement de surface
EP1205411B1 (fr) 2000-11-13 2003-03-05 Wilhelm Steckelbach Dispositif modulaire pour le traitement en surface d'objets individuels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1819603A (en) * 1928-09-21 1931-08-18 Budd Wheel Co Electroplating apparatus
WO1998041676A2 (fr) * 1997-03-18 1998-09-24 C.V.G. Centro Veneto Galvanico S.R.L. Installation de traitement de surface
EP1205411B1 (fr) 2000-11-13 2003-03-05 Wilhelm Steckelbach Dispositif modulaire pour le traitement en surface d'objets individuels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114770035A (zh) * 2022-03-29 2022-07-22 杭州嘉翔高强螺栓股份有限公司 一种大六角螺栓的生产工艺
CN114770035B (zh) * 2022-03-29 2024-04-26 杭州嘉翔高强螺栓股份有限公司 一种大六角螺栓的生产工艺

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