EP2189554A1 - Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées - Google Patents

Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées Download PDF

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Publication number
EP2189554A1
EP2189554A1 EP08020460A EP08020460A EP2189554A1 EP 2189554 A1 EP2189554 A1 EP 2189554A1 EP 08020460 A EP08020460 A EP 08020460A EP 08020460 A EP08020460 A EP 08020460A EP 2189554 A1 EP2189554 A1 EP 2189554A1
Authority
EP
European Patent Office
Prior art keywords
rotation
axis
workpieces
carrying device
support
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Withdrawn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
EP08020460A
Other languages
German (de)
English (en)
Inventor
Stephan Kaufhold
Ingolf Stützer
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.)
Mg Oberflachensysteme & Co GmbH
Original Assignee
Mg Oberflachensysteme & Co 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 Mg Oberflachensysteme & Co GmbH filed Critical Mg Oberflachensysteme & Co GmbH
Priority to EP08020460A priority Critical patent/EP2189554A1/fr
Publication of EP2189554A1 publication Critical patent/EP2189554A1/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Withdrawn legal-status Critical Current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
    • C25D17/005—Contacting devices
    • 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
    • C25D17/06—Suspending or supporting devices for articles to be coated

Definitions

  • the present invention relates to a support device for holding one or more workpieces during plating, wherein a holding device is suspended rotatably about an axis of rotation on the support device, wherein the holding device is configured such that one or more workpieces are radially spaced from the axis of rotation, and wherein a drive for rotating the holding device about the axis of rotation is provided, and a method for galvanizing one or more workpieces.
  • High-quality coatings of metallic workpieces are of exceptionally high interest in many applications.
  • the high-pressure fuel line of a modern common-rail injection system for internal combustion engines in the form of a pipe feed line is required, which has applied to the outer surface coating of the pressure accumulator serving pipe section of high quality.
  • the inner surface of the common pipe inlet must be particularly homogeneous and smooth, in order to keep the flow resistance at the pipe inner wall as low as possible and to avoid attack points for deposits. Therefore, the inner surface must not be damaged by corrosion, which can occur when liquid can not flow out of the interior of the pipe after a galvanizing.
  • a disadvantage of the in the US Pat. No. 6,630,059 B1 , of the US 2006/0204668 A1 and the DE 103 09 401 A1 described support devices is that the rotatable mounting is located at both ends of the shaft during the immersion process in the bath medium and the power supply to the workpieces is made difficult. Furthermore the resulting coating does not have the desired quality. In particular, the layer thicknesses over the entire surface of the workpiece can not be sufficiently uniform, and the roughness can be too large.
  • a support apparatus for holding one or more workpieces during plating, wherein a support means is rotatably suspended about an axis of rotation on the support apparatus, wherein the support means is configured such that one or more workpieces are radially spaced from the axis of rotation are held, and wherein a drive for rotating the Holding device is provided around the axis of rotation, characterized in that the axis of rotation is inclined at an acute angle with respect to the vertical.
  • electroplating refers to all process steps in electroplating. This includes not only the actual coating steps in electroplating baths, but also all immersion steps in various other baths with different bath media such as cleaning baths, ultrasonic baths, pickling baths, acidic or alkaline baths and degreasing baths. In this sense, “plating” further includes a dripping, drying or cleaning step before or after a dipping operation.
  • the acute angle to the vertical includes all inclination angles between a horizontal and a vertical axis of rotation, ie between 0 ° and 90 ° to the vertical except for these critical angles.
  • An exact horizontal and an exactly vertical arrangement of the axis of rotation are thus explicitly excluded.
  • the workpieces are vented without residue by a rotation of the holding device about the axis of rotation inclined to the vertical during a step during galvanizing and the coating quality is improved by a more homogeneous layer thickness distribution.
  • the inclination of the axis of rotation also ensures that after removing the workpieces from a galvanizing bath and a further rotation about the axis of rotation no liquid remains in the workpieces and so the risk of corrosion is reduced.
  • the holding device is not completely submerged in a bath medium must be, but an upper end during a dipping process outside the bath medium can remain and thus both the drive for the rotation and the power supply is much easier.
  • the acute angle between 5 ° and 45 °. It has proved to be particularly advantageous to choose an acute angle between 10 ° and 20 ° and in particular an angle of about 15 °.
  • the support device can also be designed so that the acute angle is changeable between 5 ° and 45 ° adjustable. In this way, the device can be adapted to different Werkstükke.
  • the surface of the workpiece to be coated must have an electrical potential difference with respect to the bath medium.
  • the holding device is designed to be electrically conductive and in electrically conductive contact with the workpiece to be coated, so that then a voltage between the holding device together with the clamped workpieces and other electrodes of the electroplating can be applied.
  • the holding device is preferably formed of electrically conductive material such as copper or steel and is substantially completely covered with an electrically insulating layer with the exception of the contact areas with the to be coated workpieces.
  • this comprises an upper and a lower carrier
  • the holding device comprises a support shaft with an upper and a lower end.
  • One or more retaining struts are provided on the support shaft, which extend substantially in the radial direction to the axis of rotation of the support shaft.
  • the support shaft is rotatably mounted with the upper end on the upper support and with the lower end on the lower support about the axis of rotation.
  • the upper bearing of the support shaft is located during a step during electroplating outside of a bath medium, so that the drive for the rotation and the power supply to the support shaft is easily possible.
  • the holding device is particularly simple and compact.
  • the drive is advantageously mounted on the upper support and operatively connected to the upper end of the support shaft.
  • the support shaft may be mounted with the lower end in a ball joint and be connected at the top with the upper end via a bolt or universal joint with a vertically rotatable connection shaft.
  • the acute angle of inclination can be carried out particularly easily in this embodiment by a horizontal displacement of the vertically rotatable connection shaft along the upper support of the support device.
  • a plurality of holding devices is provided, wherein each holding device is rotatably suspended about a rotational axis associated therewith in the carrying device and wherein the holding devices are configured such that one or more workpieces are held radially spaced from their associated axes of rotation, and wherein a drive to Rotating the holding devices is provided to their associated axes of rotation.
  • the support shafts can each be mounted with the lower end in a ball joint and connected at the top with the upper end via a bolt or universal joint, each with a vertically rotatable drive shaft.
  • the drive can have, for each holding device, a vertically rotatable connecting shaft which can be driven jointly via a horizontally arranged drive shaft which extends substantially along the upper carrier.
  • the capacity of the carrying device can be increased.
  • the acute angle is set in the range between 5 ° and 45 ° during the attachment step. It is particularly advantageous if, during the fastening step, the acute angle is set to a value between 10 ° and 20 °, in particular about 15 °.
  • Supporting device 1 shown has an outer support frame 3, which comprises an upper support 5 and a lower support 7 and side elements 9, 11. Between the upper and the lower carrier 5, 7, a holding device 13 is suspended rotatably about a rotation axis A on the support device 1, wherein the axis of rotation A is inclined at an acute angle ⁇ with respect to the vertical V.
  • the holding device 13 has a support shaft 15 extending along the axis of rotation A, which is connected to an upper end 17 via a vertical connecting shaft 19 with the upper carrier 5.
  • the support shaft 15 In order that the support shaft 15 can rotate about its longitudinal axis and thus about the axis of rotation A inclined at an acute angle ⁇ relative to the vertical V, the upper end 17 of the support shaft 15 is connected to the drive 21 via a pin joint 20. At the lower end 23, the support shaft 15 is pivotally and rotatably mounted in a ball joint 25 and thus connected to the lower carrier 7.
  • From the support shaft 15 extend radially from the axis of rotation A holding struts 27, which are adapted to clamp workpieces 29 by means of a spring tension.
  • On the support shaft 15 are radially extending from the support shaft 15 extending plate-shaped plates 30, followed by the support struts 27 connect.
  • the holding struts 27 have loops 31 which can generate a spring tension in the longitudinal direction of the axis of rotation A.
  • Two holding struts 27 can each act on an upper and on a lower engagement surface of a workpiece 29 and hold the workpiece 29 by opposing spring tension.
  • a plurality of workpieces 29 are held radially spaced from the axis of rotation A via the holding struts 27 extending radially from the axis of rotation A.
  • the workpieces 29 are essentially oriented parallel to one another on a jacket plane surrounding the support shaft 15.
  • the workpieces 29 are shown as pipe sections with radially projecting and pierced end fittings 33.
  • the pierced extensions 33 provide with the inner surfaces of the holes for the clamping of the workpiece 29 necessary attack surfaces on which the retaining struts 27 attack. About this attack surfaces also flows necessary for a galvanization electric power.
  • the engagement surfaces that are in contact with the support struts 27 can not be coated because they do not come in contact with the bath medium.
  • the engagement surfaces for attaching the workpieces 29 should therefore be relatively small and be located on a relative to the coating quality relatively insignificant part of the workpiece 29.
  • the support struts 27 in the form of tapered printheads with a diameter of the Pipe section superior extent selectively grip in the upper and lower pipe opening and hold the workpieces 29 each with a compressive stress from above and below.
  • especially at the upper end of the pipe section may not be completed to allow a residual-free ventilation of the inner region of the workpiece 29.
  • the lower tube opening is not completely closed, so that after removing the workpieces 29 from the electroplating bath 29 by a rotation of the support shaft liquid from the workpieces 29 can run completely, so it later not to corrosion inside the workpieces 29 is coming.
  • the workpieces 29 may have any shape suitable for being held radially spaced from the axis of rotation A.
  • the workpieces 29 may be cooking pots or other items that require a high quality plating coating.
  • the drive 21 comprises in this embodiment a drive motor 35, a horizontally arranged drive shaft 37 and a vertically rotatable connection shaft 19.
  • the drive motor 35 is provided to drive the horizontal drive shaft 37 in rotation.
  • the rotation of the horizontal drive shaft 37 is transmitted to the vertical rotatable connection shaft 19 through a gear 39 so that it rotates about a vertical axis.
  • the support shaft 15 can rotate about its longitudinal axis and thus at an acute angle ⁇ with respect to the vertical V inclined axis of rotation A, the upper end 17 of the support shaft 15 is connected via the pin joint 20 with the vertical drive shaft 19 of the drive 4.
  • the acute angle of inclination ⁇ between the vertical V and the axis of rotation A can be in this preferred embodiment by horizontal displacement of the vertical drive shaft 19 together with gear 39, as indicated by the double arrow 41 set. It is therefore also conceivable that the inclination angle ⁇ is fixed.
  • the acute angle .alpha. Can in principle encompass all inclination angles between a horizontal and a vertical axis of rotation A, but the range is limited here because of the construction. However, the exact horizontal axis and the exactly vertical axis of rotation A are explicitly excluded.
  • the acute angle ⁇ is set between 5 ° and 45 °. It has proved to be particularly advantageous to set an acute angle ⁇ between 10 ° and 20 ° and in particular an angle ⁇ of about 15 °.
  • the holding device 13 is preferably made of electrically conductive material such as copper or steel and is substantially completely covered with an electrically insulating layer with the exception of the contact areas with the workpieces to be coated 29 and its attack surfaces.
  • FIG. 3 an embodiment of the support device 1 is shown, wherein a plurality of holding devices 13 is provided in order to coat as many workpieces 29 in one step during electroplating can.
  • each holding device 13 is rotatably suspended about its associated axis of rotation A in the support device 1 as described above.
  • the holding devices 13 are configured such that one or more workpieces 29 are held radially spaced from their associated axes of rotation A.
  • a drive 21 for rotating the holding devices 13 about their associated axes of rotation A is also provided.
  • Each holding device 13 is in this case designed as described in the preceding embodiment.
  • the support shafts 15 are each pivotally and rotatably mounted with the lower end 23 in a ball joint 25 and thus connected to the lower carrier 7.
  • the drive 21 has, for each holding device 13, in each case a vertically rotatable connection shaft 19, which together with a horizontally arranged drive shaft 37, which extends substantially along the upper carrier 5, with the drive motor 35 or from the outside by an external motor can be driven.
  • FIG. 1 it becomes clear how the method according to the invention for galvanizing preferably proceeds.
  • the workpieces 29 to be coated are first fixed in the holding device 13, wherein this is suspended in the carrying device 1 rotatable about the axis of rotation A.
  • the workpieces 29 are held radially spaced from the axis of rotation A, and the axis of rotation A extends at an acute angle ⁇ with respect to the vertical V inclined.
  • the holding device 13 is rotated about the axis of rotation A during a step in electroplating.
  • Galvanizing encompasses all process steps in a galvanizing process.
  • plating further includes a dripping, drying or purging step before or after a dipping operation.
  • the acute angle ⁇ can be set in the range between 5 ° and 45 ° by the horizontal drive shaft 19 including the gear 20 is moved horizontally.
  • the setting of an acute angle of inclination ⁇ between 10 ° and 20 °, and in particular of 15 °, has proved to be particularly advantageous for the coating thickness distribution of the coating and the venting of the workpieces 29.
EP08020460A 2008-11-25 2008-11-25 Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées Withdrawn EP2189554A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08020460A EP2189554A1 (fr) 2008-11-25 2008-11-25 Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08020460A EP2189554A1 (fr) 2008-11-25 2008-11-25 Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées

Publications (1)

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EP2189554A1 true EP2189554A1 (fr) 2010-05-26

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EP08020460A Withdrawn EP2189554A1 (fr) 2008-11-25 2008-11-25 Dispositif de support et procédé de galvanisation d'une ou plusieurs pièces usinées

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011007391B3 (de) * 2011-04-14 2012-07-19 Koenig & Bauer Aktiengesellschaft Verfahren zur Herstellung eines Zylinders einer Druckmaschine
WO2019210264A1 (fr) * 2018-04-27 2019-10-31 Modumetal, Inc. Appareils, systèmes et procédés de production d'une pluralité d'articles pourvus de revêtements nano-stratifiés à l'aide d'une rotation
CN111321448A (zh) * 2020-03-17 2020-06-23 宁海县鑫鸿汽车部件有限公司 一种金属制品电镀设备
US10961635B2 (en) 2005-08-12 2021-03-30 Modumetal, Inc. Compositionally modulated composite materials and methods for making the same
US11118280B2 (en) 2013-03-15 2021-09-14 Modumetal, Inc. Nanolaminate coatings
US11168408B2 (en) 2013-03-15 2021-11-09 Modumetal, Inc. Nickel-chromium nanolaminate coating having high hardness
US11242613B2 (en) 2009-06-08 2022-02-08 Modumetal, Inc. Electrodeposited, nanolaminate coatings and claddings for corrosion protection
US11286575B2 (en) 2017-04-21 2022-03-29 Modumetal, Inc. Tubular articles with electrodeposited coatings, and systems and methods for producing the same
US11365488B2 (en) 2016-09-08 2022-06-21 Modumetal, Inc. Processes for providing laminated coatings on workpieces, and articles made therefrom
US11560629B2 (en) 2014-09-18 2023-01-24 Modumetal, Inc. Methods of preparing articles by electrodeposition and additive manufacturing processes
US11692281B2 (en) 2014-09-18 2023-07-04 Modumetal, Inc. Method and apparatus for continuously applying nanolaminate metal coatings
US11851781B2 (en) 2013-03-15 2023-12-26 Modumetal, Inc. Method and apparatus for continuously applying nanolaminate metal coatings

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836066A (en) * 1923-07-06 1931-12-15 Edison Inc Thomas A Electroplating apparatus
US4233149A (en) 1979-02-14 1980-11-11 Mitsubishi Kinzoku Kabushiki Kaisha Anode support member
US4481098A (en) 1982-05-27 1984-11-06 Snamprogetti S.P.A. Frame for supporting and treating spent electrical accumulators in processes for the electrochemical extraction of the metals contained therein
US4872963A (en) 1984-10-01 1989-10-10 Horn Samuel L Van Method and apparatus for improved electroplating and painting racks
EP0399049A1 (fr) * 1988-11-07 1990-11-28 Matsushita Electric Industrial Co., Ltd. Appareil de placage pour resonateurs dielectriques
DE4334686A1 (de) * 1993-10-12 1995-04-13 Tscherwitschke Gmbh Richard Vorrichtung zur Aufnahme von zu galvanisierender Ware
JP2000212800A (ja) * 1999-01-21 2000-08-02 Printing Bureau Ministry Of Finance Japan せん孔針のめっき方法及びその装置
US6630059B1 (en) 2000-01-14 2003-10-07 Nutool, Inc. Workpeice proximity plating apparatus
DE10309401A1 (de) 2003-03-04 2004-09-16 Vacuumschmelze Gmbh & Co. Kg Vorrichtung und Verfahren zu Beschichtung von Gegenständen
CH694643A5 (fr) 2001-09-20 2005-05-13 Galvamat Technologies Sa Appareil destiné à mouvoir des pièces dans un bain.
US20060204668A1 (en) 2002-09-26 2006-09-14 Apollo Plating, Inc. Frame assembly and method for coating a strand of workpieces

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836066A (en) * 1923-07-06 1931-12-15 Edison Inc Thomas A Electroplating apparatus
US4233149A (en) 1979-02-14 1980-11-11 Mitsubishi Kinzoku Kabushiki Kaisha Anode support member
US4481098A (en) 1982-05-27 1984-11-06 Snamprogetti S.P.A. Frame for supporting and treating spent electrical accumulators in processes for the electrochemical extraction of the metals contained therein
US4872963A (en) 1984-10-01 1989-10-10 Horn Samuel L Van Method and apparatus for improved electroplating and painting racks
EP0399049A1 (fr) * 1988-11-07 1990-11-28 Matsushita Electric Industrial Co., Ltd. Appareil de placage pour resonateurs dielectriques
DE4334686A1 (de) * 1993-10-12 1995-04-13 Tscherwitschke Gmbh Richard Vorrichtung zur Aufnahme von zu galvanisierender Ware
JP2000212800A (ja) * 1999-01-21 2000-08-02 Printing Bureau Ministry Of Finance Japan せん孔針のめっき方法及びその装置
US6630059B1 (en) 2000-01-14 2003-10-07 Nutool, Inc. Workpeice proximity plating apparatus
CH694643A5 (fr) 2001-09-20 2005-05-13 Galvamat Technologies Sa Appareil destiné à mouvoir des pièces dans un bain.
US20060204668A1 (en) 2002-09-26 2006-09-14 Apollo Plating, Inc. Frame assembly and method for coating a strand of workpieces
DE10309401A1 (de) 2003-03-04 2004-09-16 Vacuumschmelze Gmbh & Co. Kg Vorrichtung und Verfahren zu Beschichtung von Gegenständen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10961635B2 (en) 2005-08-12 2021-03-30 Modumetal, Inc. Compositionally modulated composite materials and methods for making the same
US11242613B2 (en) 2009-06-08 2022-02-08 Modumetal, Inc. Electrodeposited, nanolaminate coatings and claddings for corrosion protection
DE102011007391B3 (de) * 2011-04-14 2012-07-19 Koenig & Bauer Aktiengesellschaft Verfahren zur Herstellung eines Zylinders einer Druckmaschine
US11118280B2 (en) 2013-03-15 2021-09-14 Modumetal, Inc. Nanolaminate coatings
US11851781B2 (en) 2013-03-15 2023-12-26 Modumetal, Inc. Method and apparatus for continuously applying nanolaminate metal coatings
US11168408B2 (en) 2013-03-15 2021-11-09 Modumetal, Inc. Nickel-chromium nanolaminate coating having high hardness
US11560629B2 (en) 2014-09-18 2023-01-24 Modumetal, Inc. Methods of preparing articles by electrodeposition and additive manufacturing processes
US11692281B2 (en) 2014-09-18 2023-07-04 Modumetal, Inc. Method and apparatus for continuously applying nanolaminate metal coatings
US11365488B2 (en) 2016-09-08 2022-06-21 Modumetal, Inc. Processes for providing laminated coatings on workpieces, and articles made therefrom
US11286575B2 (en) 2017-04-21 2022-03-29 Modumetal, Inc. Tubular articles with electrodeposited coatings, and systems and methods for producing the same
CN112272717A (zh) * 2018-04-27 2021-01-26 莫杜美拓有限公司 用于使用旋转生产具有纳米层压物涂层的多个制品的设备、系统和方法
US11519093B2 (en) 2018-04-27 2022-12-06 Modumetal, Inc. Apparatuses, systems, and methods for producing a plurality of articles with nanolaminated coatings using rotation
WO2019210264A1 (fr) * 2018-04-27 2019-10-31 Modumetal, Inc. Appareils, systèmes et procédés de production d'une pluralité d'articles pourvus de revêtements nano-stratifiés à l'aide d'une rotation
CN112272717B (zh) * 2018-04-27 2024-01-05 莫杜美拓有限公司 用于使用旋转生产具有纳米层压物涂层的多个制品的设备、系统和方法
CN111321448B (zh) * 2020-03-17 2021-03-23 佳波(惠州)电镀有限公司 一种金属制品电镀设备
CN111321448A (zh) * 2020-03-17 2020-06-23 宁海县鑫鸿汽车部件有限公司 一种金属制品电镀设备

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