EP2013383B1 - Installation de traitement de surface de pieces metalliques, notamment par electrolyse - Google Patents

Installation de traitement de surface de pieces metalliques, notamment par electrolyse Download PDF

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Publication number
EP2013383B1
EP2013383B1 EP07734332A EP07734332A EP2013383B1 EP 2013383 B1 EP2013383 B1 EP 2013383B1 EP 07734332 A EP07734332 A EP 07734332A EP 07734332 A EP07734332 A EP 07734332A EP 2013383 B1 EP2013383 B1 EP 2013383B1
Authority
EP
European Patent Office
Prior art keywords
drum
treatment installation
parts
electrolysis
vat
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.)
Not-in-force
Application number
EP07734332A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2013383A1 (fr
Inventor
Frédéric Vacheron
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.)
Tornos Management Holding SA
Original Assignee
Tornos Management Holding SA
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
Priority claimed from FR0603687A external-priority patent/FR2900161A1/fr
Application filed by Tornos Management Holding SA filed Critical Tornos Management Holding SA
Priority to PL07734332T priority Critical patent/PL2013383T3/pl
Publication of EP2013383A1 publication Critical patent/EP2013383A1/fr
Application granted granted Critical
Publication of EP2013383B1 publication Critical patent/EP2013383B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • C25D17/02—Tanks; Installations therefor
    • 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
    • C25D17/12—Shape or form
    • 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
    • C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
    • 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
    • C25D7/04—Tubes; Rings; Hollow bodies

Definitions

  • the present invention relates to an improvement in the method of surface treatment of metal parts, by electrolysis and relates more particularly to an electrolysis cell using the principle of immersion and transfer of parts continuously.
  • the surface treatment of parts by electrolysis is a well known method, which requires the implementation of an electric current for carrying out the treatment.
  • Electrolysis can be applied to metals, such as anodizing aluminum, anaphoresis which allows the electrolytic deposition of aluminum paint, treatments on steels such as zinc plating, chrome plating, copper plating, nickel plating , cataphoresis, phosphatation, copper treatments such as tinning, but also electrolytic coating treatments on non-metallic parts such as electroplating of plastic parts.
  • metals such as anodizing aluminum, anaphoresis which allows the electrolytic deposition of aluminum paint, treatments on steels such as zinc plating, chrome plating, copper plating, nickel plating , cataphoresis, phosphatation, copper treatments such as tinning, but also electrolytic coating treatments on non-metallic parts such as electroplating of plastic parts.
  • the object of the invention is then to overcome all or part of the disadvantages of existing methods and implementation facilities, as mentioned above.
  • the present invention relates to an installation using a method for surface treatment of parts such as hollow parts or the like, in which the parts are immersed completely inside at least one treatment tank. containing a liquid characterized in that each hollow part is immersed by making it rotate so that the air bubbles that can be created inside the tank are driven from the inner wall of said part.
  • the metal surface treatment plant comprises an electrolysis cell containing a treatment liquid in which the treated parts are immersed, and is characterized in that the electrolysis cell comprises a motor and a drum rotatably mounted in said electrolytic cell, said drum being rotated by said motor via a driving ring of said drum, and in that the workpieces are fixed on a pivoting drum so as to it is done for each piece in the tank, at least one rotational movement, and in that the tank comprises at least two electrodes, while the drum is supplied with electric current of opposite polarity to that of the electrodes, means of at least one contact pad which is brought into contact with the drive ring of the drum.
  • the tank comprises a set of contact pads, for example two times fifteen pads sandwiching the drive ring of the drum
  • the contact pads are movably mounted in translation towards the flanks of the ring, and are biased in abutment against the corresponding face of the corresponding flank by an elastic system such as a spring.
  • the two lateral successions of pads are arranged in an arc having the center of the pivot center of the drum, while each of the contact pads is connected to a copper cable or braid connected to the power supply.
  • the outer periphery of the drum comprises a succession of slides, intended to receive by sliding cassettes serving as a support for the parts to be treated, and that the slides are equipped with flexible contact blades, which are fixed to the slides, to transmit the electrical contact of the slide to the corresponding cassette and therefore to the parts attached thereto, thus making it possible to perform the electrolysis.
  • the tank comprises a motor designed to rotate the pivoting drum by the cooperation of a toothed wheel (6) with a succession of pins mounted parallel to each other, and between the two flanges of one of the sidewalls of the drum. .
  • the tank comprises two electrodes connected to a negative or positive polarity, while the drum is fed at the opposite polarity, and that said electrodes consist of aluminum plates.
  • each piece is immersed in a tank, making it do at least one rotational movement such that the air bubbles that can be created inside of the tank are driven from the inner walls of said room.
  • a rotational movement of at least 90 ° is made to each piece, and preferably a rotation of 360 °.
  • a predetermined number of said parts is placed beforehand on a support or cassette (4) comprising at least one holding member to retain each of them.
  • the part treatment plant with the general reference (100) consists of a tank (1) comprising a drum (2), rotatably mounted inside the latter, along an axis horizontal (X, X '), on which the parts to be treated are fixed.
  • the drum (2) comprises, at its outer periphery, a succession of slides (3) with an axis parallel to the axis of rotation of the drum, intended to receive for example by sliding the cassettes (4). serving as support for the parts to be treated.
  • the cassettes are for example those described in the European patent application EP-A-1,433,537 and include a set of part holders for attaching a plurality of pieces to a single cassette.
  • the tank (1) of the invention comprises a motor for rotating the pivoting drum (2) by the cooperation of a toothed wheel (6) with a succession of pegs (7) mounted parallel to each other, and between the two flanges (10a, 10b) of one of the flanks (10) of the drum, constituting the drive ring.
  • the tank (1) comprises for example two electrodes (8a, 8b) connected to a negative polarity for electrolysis of aluminum parts. It will be noted that these electrodes (8a, 8b) would be connected to a positive polarity in the case of electrolysis of a steel or copper part.
  • the drum (2) is advantageously titanium but it could be otherwise as for example plastic for treatments requiring a metal deposition such as zinc coating.
  • Said drum (2) is fed at the opposite polarity, that is to say positive in the case of anodization.
  • the electric current is distributed to the drum (2) by means of at least one contact pad (9) which is brought into contact with the drive ring (10) of the drum.
  • the tank comprises a set of contact pads, for example (9) two times fifteen pads (9a, 9b, 9c, 8.1 90), as illustrated more particularly in FIG. the figure 4 .
  • the electrical contact with the drum is by sandwiching the drive ring (10) between two sets of fifteen pads.
  • Said contact pads (9) are for example graphite, but could be in another material for other treatments.
  • each of the pads (9) is movably mounted in translation to the flanks (10a, 10b) of the ring, and is biased against the corresponding face of the corresponding flank by an elastic system such as a spring.
  • the two lateral successions of pads are arranged in an arc whose center is the pivoting center of the drum, as appears more particularly in FIG. figure 1 and 4 .
  • Each of the contact pads (9) is connected to a copper cable or braid (12) connected to the power supply (13).
  • the graphite contacts rub on the flanks (10a, 10b) of the drive ring of the drum, thereby transmitting the current to the entire structure of the wheel, the slides (3) serving as support for the cassettes.
  • the slides (3) are advantageously equipped with flexible contact blades, which are fixed to the slideways, to transmit the electrical contact of the slideway to the corresponding cassette (4) and thus to the parts which are fixed thereto, thus making it possible to realize the electrolysis between the connected parts, polarized in this application example to the positive pole and the electrodes (8a, 8b).
  • the electrodes (8a, 8b) advantageously consist of aluminum plates polarized at the negative pole.
  • the aluminum plates constituting the electrodes are arranged for example on either side of the drum near the walls of the tank, and extend parallel to the axis of rotation of the drum.
  • the tank (1) thus equipped and filled with an electrolytic solution such as sulfuric acid for anodizing aluminum, makes it possible to anodize aluminum parts attached to the cassettes.
  • an electrolytic solution such as sulfuric acid for anodizing aluminum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
EP07734332A 2006-04-21 2007-04-19 Installation de traitement de surface de pieces metalliques, notamment par electrolyse Not-in-force EP2013383B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07734332T PL2013383T3 (pl) 2006-04-21 2007-04-19 Instalacja do obróbki powierzchni elementów metalowych zwłaszcza przez elektrolizę

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0603687A FR2900161A1 (fr) 2006-04-21 2006-04-21 Installation de traitement de pieces, notamment par electrolyse
FR0608406A FR2900162B1 (fr) 2006-04-21 2006-09-22 Installation de traitement de surface de pieces metalliques, notamment par electrolyse.
PCT/IB2007/001013 WO2007122471A1 (fr) 2006-04-21 2007-04-19 Installation de traitement de surface de pieces metalliques, notamment par electrolyse

Publications (2)

Publication Number Publication Date
EP2013383A1 EP2013383A1 (fr) 2009-01-14
EP2013383B1 true EP2013383B1 (fr) 2012-08-01

Family

ID=38234485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07734332A Not-in-force EP2013383B1 (fr) 2006-04-21 2007-04-19 Installation de traitement de surface de pieces metalliques, notamment par electrolyse

Country Status (13)

Country Link
US (1) US20090057138A1 (es)
EP (1) EP2013383B1 (es)
JP (1) JP4413993B2 (es)
KR (1) KR101121634B1 (es)
BR (1) BRPI0710160A2 (es)
CA (1) CA2647400C (es)
ES (1) ES2390684T3 (es)
FR (1) FR2900162B1 (es)
MX (1) MX2008013525A (es)
PL (1) PL2013383T3 (es)
PT (1) PT2013383E (es)
RU (1) RU2398918C2 (es)
WO (1) WO2007122471A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2883576B1 (fr) * 2005-02-09 2009-05-29 Frederic Vacheron Procede de traitement de surface de pieces creuses, cuve de mise en oeuvre d'un tel procede, procede et installation de traitement de surface en continu utilisant une telle cuve
EP2246460A1 (fr) 2009-04-28 2010-11-03 Golden Eagle Trading Ltd Installation de traitement de surface de pièces
CN104466606B (zh) * 2014-11-18 2017-11-10 宁波日鼎电子科技有限公司 一种部份导通的连接器外壳电泳处理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1442514A (en) * 1922-04-22 1923-01-16 Frank J Bell Electroplating machine
US3849284A (en) * 1972-09-01 1974-11-19 American Can Co Apparatus method and valve for electrodepositing a coating on interior surfaces of container bodies
US4581260A (en) * 1984-09-25 1986-04-08 Ampex Corporation Electroless plating method and apparatus
GB8811982D0 (en) * 1988-05-20 1988-06-22 Metal Box Plc Apparatus for electrolytic treatment of articles
AT2361U1 (de) * 1997-08-13 1998-09-25 Blau Automobiltechnik Gmbh Vorrichtung zum galvanisieren von schöpfenden teilen
DE10047968A1 (de) * 2000-09-27 2002-04-18 Flaekt Ab Vorrichtung und Verfahren zur Oberflächenbehandlung von Werkstücken
FR2883576B1 (fr) * 2005-02-09 2009-05-29 Frederic Vacheron Procede de traitement de surface de pieces creuses, cuve de mise en oeuvre d'un tel procede, procede et installation de traitement de surface en continu utilisant une telle cuve

Also Published As

Publication number Publication date
FR2900162B1 (fr) 2008-08-01
RU2008145889A (ru) 2010-05-27
ES2390684T3 (es) 2012-11-15
JP4413993B2 (ja) 2010-02-10
KR101121634B1 (ko) 2012-03-09
FR2900162A1 (fr) 2007-10-26
BRPI0710160A2 (pt) 2011-08-23
RU2398918C2 (ru) 2010-09-10
WO2007122471A1 (fr) 2007-11-01
PL2013383T3 (pl) 2012-12-31
KR20090005333A (ko) 2009-01-13
CA2647400C (fr) 2010-06-22
US20090057138A1 (en) 2009-03-05
MX2008013525A (es) 2008-10-29
JP2009534530A (ja) 2009-09-24
PT2013383E (pt) 2012-10-23
CA2647400A1 (fr) 2007-11-01
EP2013383A1 (fr) 2009-01-14

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