EP2056972A1 - Procédé de revêtement de pièces avec une laque - Google Patents

Procédé de revêtement de pièces avec une laque

Info

Publication number
EP2056972A1
EP2056972A1 EP07801901A EP07801901A EP2056972A1 EP 2056972 A1 EP2056972 A1 EP 2056972A1 EP 07801901 A EP07801901 A EP 07801901A EP 07801901 A EP07801901 A EP 07801901A EP 2056972 A1 EP2056972 A1 EP 2056972A1
Authority
EP
European Patent Office
Prior art keywords
component
coating
components
rotation
degreasing
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
Application number
EP07801901A
Other languages
German (de)
English (en)
Other versions
EP2056972B1 (fr
Inventor
Rainer Holder
Jochen Holder
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38918749&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2056972(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP2056972A1 publication Critical patent/EP2056972A1/fr
Application granted granted Critical
Publication of EP2056972B1 publication Critical patent/EP2056972B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/04—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material with special provision for agitating the work or the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/09—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/08—Spreading liquid or other fluent material by manipulating the work, e.g. tilting

Definitions

  • the invention relates to a method for coating components with a lacquer, in particular for the coating of metallic components with a zinc-containing lacquer.
  • axle subassemblies are provided with hot-dip galvanizing, galvanic coatings, cathodic dip-paint coatings (ie with a so-called cathodic dip-coating) and / or various varnishes.
  • a method for electrocoating a car body is known e.g. known from DE 196 43 082 C2.
  • the invention has for its object to provide a method for coating components with a paint, with which a high-quality coating with a long-term protective effect in complex shaped components is made possible, which are designed as hollow parts, and wherein a uniform coating as possible the inner surfaces and the outer surfaces possible without Lackanphaseufitch is possible.
  • a particularly uniform layer thickness is ensured by working in a dip-spinning process with a changing direction of rotation both during dipping and when the component is being spun off.
  • a zinc-containing paint such as a zinc flake paint
  • a particularly high-quality corrosion protection in a uniform coating thickness both inside and outside hollow parts can be achieved in this way, a particularly high-quality corrosion protection in a uniform coating thickness both inside and outside hollow parts.
  • the component is particularly preferred in step (f) at its greatest distance on the axis of rotation at a peripheral speed of at least 50 m / min, preferably at least 100 m / min, more preferably at least 200 m / min rotated by at least 300 m / min.
  • the component is at least in step (d) or (f) rotated several times alternately in different directions of rotation.
  • This measure also supports a particularly uniform coating.
  • step (d) the component can be pivoted back and forth about an axis of rotation that is angled at an angle, preferably at right angles.
  • the method according to the invention is particularly advantageous for coating components which are designed as hollow parts which communicate with their outer surfaces via a plurality of openings, and wherein the coating takes place both on the outer surface and on the inner surface of the components ,
  • the method according to the invention is particularly suitable for coating components which have a length of at least 500 mm in the direction of their greatest longitudinal extent.
  • a zinc flake lacquer is used for this purpose.
  • a zinc flake varnish which contains in particular zinc flakes, aluminum flakes, binders, solvents and other inorganic paint components
  • a particularly high-quality long-term corrosion protection can be guaranteed.
  • the necessary edge parameters such as uniform coating, no Lackanophufonne, freedom from bubbles, etc., complied with.
  • a basecoat film is first applied according to steps (a) to (g), and then at least one further film, in particular a topcoat, is applied.
  • a robot or a handling device is used in an advantageous embodiment of the invention.
  • the movement of the component can also be achieved during the dip-spin method by a stationary device for rotating or possibly tilting drive of the component and by raising or lowering the immersion bath. It is understood that, conversely, of course, the rotary drive or tilting drive can be raised or lowered and the immersion bath can be formed stationary.
  • the step (a) of the pretreatment comprises a degreasing in an immersion bath.
  • the degreasing comprises first a hot degreasing and then a degreasing with ultrasound support in a dipping bath.
  • degreasing is preferably carried out first a rinse and then a pickling followed by a rinse.
  • the pickling is preferably carried out with ultrasound support in a dipping bath.
  • the pickling and rinsing is followed by an activation followed by a phosphating, preferably a zinc phosphating.
  • the phosphating is first followed by rinsing, drying and cooling before starting the dip coating in step (c).
  • FIG. 1 is a schematic representation of a system for carrying out the method according to the invention.
  • FIG. 2 is a schematic representation of the diving station according to FIG. 1.
  • FIG. 1 An apparatus for carrying out the method according to the invention is shown in FIG. 1 and designated overall by the numeral 10.
  • FIGS. 1 and 2 The apparatus of FIGS. 1 and 2 is used for painting of complex shaped components, which are designed as hollow parts, with a zinc-containing paint, in particular with a zinc flake paint.
  • the component is a support for a front axle of a car, which has a number of functional surfaces for connection of attachments, such as strut mountings, stub axles and the like. More.
  • This is a tubular construction in the basic shape of a rectangle with corresponding surfaces and functional surfaces, the construction is hollow and has a number of openings.
  • the extension in the direction of the maximum longitudinal extent is about 85 cm, the extension in the direction of the maximum transverse extent about 60 cm and the height about 13 cm. It is a welded tubular steel construction.
  • Such a component is coated internally and externally by the method according to the invention. With the method according to the invention, it is possible to avoid air bubbles and lacquer accumulations in the interior and to achieve a uniform coating thickness with a low total weight of the coating. Also Lackanophen be avoided at Verschraubungs vom.
  • the components are coated with a base coat of a zinc flake varnish from Magni type B95 and a topcoat from the company Magni type P35.
  • the entire coating system is preferably fully automated.
  • an automatic removal of the components from charge carriers, in which they are delivered, first takes place at a loading station 12.
  • the components can be automatically clamped to a suitable holder and pass through the coating system 10.
  • a repositioning or suspension on another holder done.
  • the components From the loading station 12, the components first pass into a hot degreasing station 14 for carrying out an alkaline degreasing. After the hot degreasing station 14, the components undergo ultrasonic assisted alkaline degreasing in the station 16.
  • a zinc phosphating is carried out in a zinc phosphate bath with an average layer weight of the phosphating of 5 g / m 2 .
  • a rinsing station 28 with a triple flush cascade, in which first a flush with city water and then a rinse with demineralized water (deionized water) takes place from a subsequent rinsing station.
  • demineralized water deionized water
  • components 52 which are received on a holder 54 are coated with a zinc flake varnish in a special dip-and-spin method.
  • a robot 58 For movement of the components 52, a robot 58 may be used.
  • a fixed suspended device for rotation and possibly tilting drive of the components 52 may be provided and the treatment bath 50 may be formed vertically movable, as indicated by the double arrow 68. It is understood that the treatment bath 50 can also be designed to be stationary and a corresponding movable drive for rotating or pivoting the components 52 can be provided instead of a robot.
  • the robot 58 has a robot arm 62, on which a rotary drive 60 is provided, by means of which a holder 54 clamped to a receptacle 64 can be driven about an axis of rotation 56 with alternating direction of rotation, as by the double arrow 68 is indicated.
  • the rotary drive 60 is pivoted back and forth about a pivot axis 61, which is perpendicular to the axis of rotation 56, as indicated by the double arrow 63.
  • the clamped on the holder 54 components 52 can be rotated about the axis of rotation 56 with changing direction of rotation and thereby, if desired, in addition to about a horizontal pivot axis 61 back and forth swung.
  • the components 52 are preferably, as far as symmetrical components are concerned, clamped to the holder 54 approximately in the middle of their longitudinal extent.
  • the components 52 are first rotated with a first direction of rotation at about 25 revolutions / minute or a peripheral speed of about 65 m / min within the dip bath 50 about the axis of rotation 56 and after a short time, for example after three revolutions with the reverse direction and the same peripheral speed driven , It can e.g. be raised to speed within 8 seconds, then left rotated for up to 60 seconds. Then slow down again and turn right again with 8 to 60 seconds.
  • the specified peripheral speed refers here to the maximum distance of the outermost component extension from the axis of rotation 56, which is designated in Fig. 2 by x. It is understood that the respective components 52 in the region of their outermost longitudinal extent in the relevant outer walls 70 corresponding outlet openings 74, so that the coating bath can enter the cavity 72 of the component 52 and can flow out of this again.
  • the component After the movement, which is alternately once clockwise and anti-clockwise, for example at 25 rpm, the component is moved up out of the coating bath 50 either by the robot 58, as indicated by the arrow 66, or alternatively the coating bath 50 lowered down (arrow 68). Subsequently, a spin-off takes place above the dip bath 50 again by a first rotary movement clockwise (or vice versa) followed by reverse rotation.
  • a significantly higher rotational frequency is used, which is for example at about 150 U / min. This corresponds to a circumferential speed at the greatest distance x from the axis of rotation 56 of about 400 m / min.
  • the spin-off occurs e.g. counterclockwise for 8 to 120 seconds and then clockwise for 8 to 120 seconds.
  • predrying in a predrying station 34 at about 100 ° C. for 10 minutes, followed by firing according to the manufacturer's instructions, for example for 20 minutes at 250 ° C., in a stoving station 36.
  • the components 52 are cooled in a cooling station 38 to about 30 to 40 0 C and now coated in a subsequent dipping station 50 in the same manner as before in the dipping station 32 with a topcoat of the type P35 Magni. Again, an alternating clockwise and counterclockwise rotation with the parameters given above takes place. Both in the base coat coating and the top coat at a temperature control of the plating bath 50 is carried out according to the manufacturer, for example at 27 0 C.
  • a stoving station 44 a stoving according to the manufacturer's instructions, eg 20 min at 200 ° C.
  • the components are passed through a cooling station 46 and cooled to 30 to 40 0 C and finally discharged via an unloading station 48 again in suitable carrier.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

La présente invention concerne un procédé de laquage de pièces, en particulier de laquage de pièce métalliques (52) avec une laque contenant du zinc. Le procédé consiste à réaliser un pré-traitement des pièces (52), puis à les placer dans un système de maintien (54) pour ensuite les plonger dans un bain de revêtement (50), à les mettre en rotation autour d'un axe de rotation (56) avec un sens de rotation alternatif, à l'intérieur du bain de revêtement (50), à les extraire du bain de revêtement (50), à les faire sécher par rotation dans un sens de rotation alternatif, et finalement à fixer la laque par cuisson.
EP07801901A 2006-08-31 2007-08-25 Procédé de revêtement de pièces avec une laque Revoked EP2056972B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006042632A DE102006042632A1 (de) 2006-08-31 2006-08-31 Verfahren zur Beschichtung von Bauteilen mit einem Lack
PCT/EP2007/007476 WO2008025498A1 (fr) 2006-08-31 2007-08-25 Procédé de revêtement de pièces avec une laque

Publications (2)

Publication Number Publication Date
EP2056972A1 true EP2056972A1 (fr) 2009-05-13
EP2056972B1 EP2056972B1 (fr) 2012-07-25

Family

ID=38918749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801901A Revoked EP2056972B1 (fr) 2006-08-31 2007-08-25 Procédé de revêtement de pièces avec une laque

Country Status (3)

Country Link
EP (1) EP2056972B1 (fr)
DE (1) DE102006042632A1 (fr)
WO (1) WO2008025498A1 (fr)

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CN118681748A (zh) * 2024-08-26 2024-09-24 江苏沃凯氟精密智造有限公司 一种用于液体加热器中加热丝的包覆设备

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US20100016890A1 (en) * 2008-07-17 2010-01-21 Steve Tsai Spool Dip And Overcoat Process For Medical Devices
DE102010018808B4 (de) * 2010-04-29 2014-11-06 Becker & Co. Gmbh Reinigungsvorrichtung zum Reinigen von Werkzeugen und Verfahren zur automatisierten Reinigung von Werkzeugen
US20130216719A1 (en) * 2010-10-27 2013-08-22 Envision Scientific Private Limited Method and system for coating substrates
US8507035B2 (en) * 2011-05-26 2013-08-13 Advenira Enterprises, Inc. Method and apparatus for coating a complex object and composite comprising the coated object
NZ617105A (en) * 2012-10-26 2015-05-29 Arch Wood Prot Aust Pty Ltd A wood treatment method and apparatus
US8889222B1 (en) * 2013-12-03 2014-11-18 Advenira Enterprises, Inc. Coating material distribution using simultaneous rotation and vibration
DE102014101823A1 (de) * 2014-02-13 2015-08-13 Claas Selbstfahrende Erntemaschinen Gmbh Tauchbehandlungsanlage
DE102015005625A1 (de) * 2015-04-30 2016-11-03 Liebherr-Aerospace Lindenberg Gmbh Multilayerbeschichtung
CN104923444A (zh) * 2015-06-08 2015-09-23 刘影 一种铝板卡接式浸泡旋转器
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EP3663082A4 (fr) * 2017-08-01 2021-04-28 Ishihara Sangyo Kaisha, Ltd. Structure tridimensionnelle, son procédé de fabrication et dispositif de revêtement
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CN108855771A (zh) * 2018-06-30 2018-11-23 芜湖聚鑫涂装有限公司 一种达克罗处理用浸涂烘干一体机
GB201915463D0 (en) * 2019-10-24 2019-12-11 Univ Newcastle Thin film fabrication method and apparatus
CN112354781B (zh) * 2020-10-28 2021-11-12 江苏爱雷德塑机有限公司 一种塑料涂覆用翻转式浸塑装置
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Also Published As

Publication number Publication date
WO2008025498A1 (fr) 2008-03-06
DE102006042632A1 (de) 2008-03-20
EP2056972B1 (fr) 2012-07-25

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