EP0193706B1 - Verfahren und Handgerät zum halbmechanischen Verzinken von Blechoberflächen - Google Patents

Verfahren und Handgerät zum halbmechanischen Verzinken von Blechoberflächen Download PDF

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Publication number
EP0193706B1
EP0193706B1 EP86100333A EP86100333A EP0193706B1 EP 0193706 B1 EP0193706 B1 EP 0193706B1 EP 86100333 A EP86100333 A EP 86100333A EP 86100333 A EP86100333 A EP 86100333A EP 0193706 B1 EP0193706 B1 EP 0193706B1
Authority
EP
European Patent Office
Prior art keywords
electrolyte
metal
treatment member
tampon
treatment
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.)
Expired
Application number
EP86100333A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0193706A1 (de
Inventor
Wolfgang Dipl.-Ing. Fh Heck
Karl-Heinz Schaich
Jan Dr. Dipl.-Ing. Adamek
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0193706A1 publication Critical patent/EP0193706A1/de
Application granted granted Critical
Publication of EP0193706B1 publication Critical patent/EP0193706B1/de
Expired legal-status Critical Current

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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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/04—Electroplating with moving electrodes
    • C25D5/06—Brush or pad plating
    • 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
    • C25D17/14—Electrodes, e.g. composition, counter electrode for pad-plating

Definitions

  • the invention relates to a device for the semi-mechanical galvanizing of sheet metal surfaces according to the preamble of claim 1.
  • the object of the invention is to provide a hand-held device for post-galvanizing which should be easy to handle and compact in order to be able to carry out post-galvanizing in a simple and quick manner even on shaped metal sheets in a strip production of motor vehicles.
  • the advantages achieved by the invention are essentially to be seen in the fact that the post-galvanizing process can be carried out with an easy-to-use implement, with which the oscillating element works quickly due to its own movement. In addition to the own movement, a free movement of the handheld device is possible.
  • the device must also be used to clean the surface before galvanizing. For this purpose, only the processing element for galvanizing is exchanged for a processing element for cleaning, or two devices with the corresponding processing elements are used.
  • the longitudinal and transverse grooves arranged in the working surface of the processing element preferably extend over the entire surface, so that a uniform delivery of zinc electrolyte to the coating is ensured.
  • a peristaltic pump provided in the feed line enables the zinc electrolyte to be optimally metered into the coating, so that the amount of liquid required for galvanizing is always available.
  • a metering valve that interacts with the pump would also be possible.
  • the procedure is coordinated in such a way that the post-galvanizing layer is flush with the existing zinc layer and is constructed in such a way that further treatment of the sheets is possible by means of stove enamelling. without bubbles or other unevenness on the painted sheet surface.
  • Fig. 1 the structure of the method for galvanizing with a handheld device 1 is shown schematically. It becomes an absorbent cover 2, a so-called tampon, which is held on a processing element 3. Zinc electrolyte supplied and absorbed by the tampon.
  • the processing element 3 can consist of graphite or platinized titanium and forms an anode, the material 5 to be galvanized being designed as a cathode. By touching the anode with the workpiece 5, the circuit 6 is closed and the electrolytic metal deposition is initiated.
  • the process is carried out at a voltage of 11 to 13 V and with a current of 10 to 15 A.
  • the sheet surface is cleaned using an aqueous alkaline solution with a pH of around 13.
  • the zinc electrolyte is based on an alkaline base and has a pH of around 8.
  • a zinc layer with a thickness of 8 to 12 pm is achieved in about 2 to 3 minutes.
  • the average layer thickness produced in this way can be assessed by an ampere-hour counter during application and a corresponding signal is generated after the desired layer thickness has been reached.
  • the hand-held device 1 for carrying out the method essentially consists of the lower processing element 3 and an upper, manageable tool 7, which is detachably connected thereto and into which an oscillating part is integrated.
  • the oscillating part sets the hand-held device in an automatically reciprocating movement on the workpiece 5.
  • the handheld device 1 can also be freely moved in any direction.
  • the zinc electrolyte is supplied to the absorbent coating 2 via bores 8 which open into longitudinal and transverse grooves 9, 10 which are open towards the coating 2.
  • the working surface 11 of the machining element 3 is adapted to the shape of the sheet 5, so that the area of the weld seam 12 with the element 3 is easily accessible.
  • the shape curve shown is only an example; any other shape curve is also conceivable, for which purpose the machining element 3 must then be adapted accordingly.
  • the galvanizing plant essentially comprises a line 13 for the zinc electrolyte, a peristaltic pump 14 and an upstream filter regeneration element 4.
  • the method for galvanizing is carried out in such a way that the ground surfaces around the weld seam 12 are electrically cleaned, the hand-held device 1 likewise having a tampon to which a cleaning solution is fed.
  • the galvanizing is then carried out by moving the hand tool 1 over the ground surfaces with a slight pressure while supplying zinc electrolyte.
  • the coating 2 stampon
  • the pump 14 is switched on via a relay 17 and the electrolyte circuit 13 is started up to the hand-held device 1.
  • the line circuits are shown only schematically. After a deposition process, the ground surface is galvanized and flush with the rest of the zinc layer. This is followed by painting the sheet surface without post-treatment of the zinc layer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electrolytic Production Of Metals (AREA)
EP86100333A 1985-03-06 1986-01-13 Verfahren und Handgerät zum halbmechanischen Verzinken von Blechoberflächen Expired EP0193706B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853507927 DE3507927A1 (de) 1985-03-06 1985-03-06 Verfahren und handgeraet zum halbmechanischen verzinken von blechoberflaechen
DE3507927 1985-03-06

Publications (2)

Publication Number Publication Date
EP0193706A1 EP0193706A1 (de) 1986-09-10
EP0193706B1 true EP0193706B1 (de) 1989-06-14

Family

ID=6264372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100333A Expired EP0193706B1 (de) 1985-03-06 1986-01-13 Verfahren und Handgerät zum halbmechanischen Verzinken von Blechoberflächen

Country Status (3)

Country Link
US (1) US4879015A (enrdf_load_stackoverflow)
EP (1) EP0193706B1 (enrdf_load_stackoverflow)
DE (2) DE3507927A1 (enrdf_load_stackoverflow)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60234965A (ja) * 1984-05-04 1985-11-21 Diesel Kiki Co Ltd 薄膜製造方法
DE3834035A1 (de) * 1988-10-06 1990-04-12 Gut Ges Umweltschonende Tech Vorrichtung und verfahren zum langzeitkorrosionsschutz von schadstellen an automobilen
DE4018649A1 (de) * 1990-06-11 1991-12-12 Hermann Dipl Chem Dr Clasen Verfahren und vorrichtungen zum elektrolytischen verzinken
DE4038717A1 (de) * 1990-12-05 1992-06-11 Saulius Baublys Einrichtung zum elektro-chemischen beschriften von werkstuecken
CH684840A5 (fr) * 1991-06-11 1995-01-13 Electroplating Eng Eesa Cellule pour plaquer par voie électrolytique sélectivement des zones choisies de pièces métalliques disposées en bande.
US5453174A (en) * 1992-07-16 1995-09-26 Electroplating Technologies Ltd. Method and apparatus for depositing hard chrome coatings by brush plating
US5225059A (en) * 1992-08-03 1993-07-06 W. R. Associates Apparatus for single anode brush electroplating
US5322613A (en) * 1992-11-23 1994-06-21 Tomy K.K. Method and apparatus for marking orthodontic products
US5476580A (en) * 1993-05-17 1995-12-19 Electrochemicals Inc. Processes for preparing a non-conductive substrate for electroplating
US6171468B1 (en) 1993-05-17 2001-01-09 Electrochemicals Inc. Direct metallization process
US6303181B1 (en) 1993-05-17 2001-10-16 Electrochemicals Inc. Direct metallization process employing a cationic conditioner and a binder
US6710259B2 (en) 1993-05-17 2004-03-23 Electrochemicals, Inc. Printed wiring boards and methods for making them
US5690805A (en) * 1993-05-17 1997-11-25 Electrochemicals Inc. Direct metallization process
US5725807A (en) * 1993-05-17 1998-03-10 Electrochemicals Inc. Carbon containing composition for electroplating
US5409593A (en) * 1993-12-03 1995-04-25 Sifco Industries, Inc. Method and apparatus for selective electroplating using soluble anodes
DE19809487A1 (de) * 1998-03-06 1999-09-09 Greising Verfahren und Vorrichtung zur Aufbringung einer räumlich begrenzten metallischen Deckschicht auf einer elektrisch leitenden Materialoberfläche
US20030234181A1 (en) * 2002-06-25 2003-12-25 Gino Palumbo Process for in-situ electroforming a structural layer of metallic material to an outside wall of a metal tube
AU2003212164A1 (en) * 2002-06-25 2004-01-06 Integran Technologies Inc. Process for in-situ electroforming a structural layer of metallic material to an outside wall of a metal tube
CN102492975A (zh) * 2011-12-30 2012-06-13 中国科学院力学研究所 一种电解液喷射放电生长陶瓷涂层的装置及方法
CN109183021A (zh) * 2018-11-19 2019-01-11 海盐力拓金属制品有限公司 一种金属零件机械镀锌设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL68330C (enrdf_load_stackoverflow) * 1950-11-03
US3294664A (en) * 1963-09-03 1966-12-27 Hoover Co Electrolytic appliance for treating surfaces
US3466239A (en) * 1964-11-25 1969-09-09 Johann Kerschgens Electro plating device
FR1483598A (enrdf_load_stackoverflow) * 1965-07-12 1967-09-06
AT271129B (de) * 1966-05-27 1969-05-27 Johann Kerschgens Gerät zum Herstellen von Metallüberzügen auf galvanischem Wege
US3751343A (en) * 1971-06-14 1973-08-07 A Macula Brush electroplating metal at increased rates of deposition
US4159934A (en) * 1977-12-05 1979-07-03 Kadija Igor V Selective plating brush applicator
FR2490685A1 (fr) * 1980-09-22 1982-03-26 Ferelec Sa Dispositif perfectionne pour l'oxydation anodique par electrolyse au tampon et electrolytes mis en oeuvre de ce dispositif
US4304654A (en) * 1980-10-24 1981-12-08 Sifco Industries, Inc. Apparatus for electroplating
DE3343396A1 (de) * 1983-11-30 1985-06-05 Kraftwerk Union AG, 4330 Mülheim Verfahren zum dekontaminieren metallischer komponenten einer kerntechnischen anlage
FI834686A0 (fi) * 1983-12-20 1983-12-20 Niinivaara Ensi Kyoesti Juhani Foerfarande foer undervattensrening och -belaeggning

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
METALS HANDBOOK, 9th Edition, Vol. 5, Surface cleaning, finishing and coating: pp. 292-298 (Selecti ve Plating), pp. 246-247 (Zinc Plating) and p. 28 (Electrocleaning) *

Also Published As

Publication number Publication date
DE3663959D1 (en) 1989-07-20
DE3507927C2 (enrdf_load_stackoverflow) 1989-08-31
EP0193706A1 (de) 1986-09-10
DE3507927A1 (de) 1986-09-11
US4879015A (en) 1989-11-07

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