EP2612710B2 - Lackieranlagenbauteil mit einer modifizierten oberfläche - Google Patents

Lackieranlagenbauteil mit einer modifizierten oberfläche Download PDF

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Publication number
EP2612710B2
EP2612710B2 EP13001691.8A EP13001691A EP2612710B2 EP 2612710 B2 EP2612710 B2 EP 2612710B2 EP 13001691 A EP13001691 A EP 13001691A EP 2612710 B2 EP2612710 B2 EP 2612710B2
Authority
EP
European Patent Office
Prior art keywords
surface layer
bell plate
base body
bell
following materials
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.)
Active
Application number
EP13001691.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2612710B1 (de
EP2612710A1 (de
Inventor
Hans-Georg Fritz
Hans-Jürgen Nolte
Timo Beyl
Marcus Kleiner
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.)
Duerr Systems AG
Original Assignee
Duerr Systems 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
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP2612710A1 publication Critical patent/EP2612710A1/de
Publication of EP2612710B1 publication Critical patent/EP2612710B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/18—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell

Definitions

  • the invention relates to a bell cup for a rotary atomizer, according to the preamble of claim 1.
  • the invention also includes a corresponding manufacturing method.
  • Rotary atomizers which have a rotating bell cup as the application element, are usually used to paint motor vehicle body components.
  • the problem here is the fact that the bell cup is heavily soiled with the applied paint during the painting operation, both on the outer surfaces (e.g. lateral surface) and on the inner surfaces (e.g. overflow area), with the paint sometimes adhering very strongly to the surface of the bell cup.
  • a relatively large amount of detergent must therefore be used to clean the bell cup of the adhering residues of the old coating agent, which also requires a relatively large amount of time. This also applies to the so-called short rinsing, which is carried out between the coating of individual coating objects (e.g. motor vehicle bodies).
  • the disadvantage of the conventional bell cups is the tendency to get dirty and the unsatisfactory cleanability.
  • the surfaces, in particular the overflow surfaces, of the conventional bell cup are subject to wear due to corrosion and/or abrasion, which increases the surface roughness, which in turn increases the requirements for cleaning the bell cup.
  • the invention is therefore based on the object of reducing the tendency of a bell cup to become soiled and/or to improve the ability of the bell cup to be cleaned.
  • a bell cup has a surface layer which reduces the tendency to become soiled and/or improves the ability to be cleaned.
  • the base body itself can consist, for example, of aluminum or an aluminum alloy, titanium, steel, stainless steel, non-ferrous metal (copper and its alloys), ceramic, plastic or a combination of these materials.
  • the surface layer can contain oxides, nitrides and/or carbides, with the surface layer containing tantalum, niobium and/or vanadium.
  • the surface layer consists of a material based on Si—O, Si—OH or silicon-organic compounds, in particular in the form of a nanolayer, as will be described in detail below.
  • the surface layer preferably contains metal oxides, metal nitrides or metal-organic compounds.
  • the surface layer can optionally consist of an organic, in particular metal-organic material, or of an inorganic material.
  • the surface layer can be either hydrophilic or hydrophobic.
  • a hydrophilic surface layer is characterized by a contact angle with water that is smaller than 90°, 45°, 20°, 10°, 8° or even smaller than 6°.
  • the surface layer can even be superhydrophilic, with the surface layer is then characterized by a contact angle to water of less than 5°, 3°, 2° or even less than 1°.
  • the contact angle with respect to water is preferably greater than 90°, 110°, 130° or 150°. It is even possible within the scope of the invention for the surface layer to be superhydrophobic, with the contact angle to water being greater than 160°, 180°, 200° or even 220°.
  • the surface layer is a so-called nano-layer.
  • nanolayers are known per se from the prior art and therefore do not need to be described in more detail.
  • nano layers usually consist of nanoparticles with a size of less than 100 nm, which settle in the surface roughness and thereby seal the surface, which leads to a significantly reduced surface roughness.
  • a lotus effect of the component surface can also be realized with such a nano-layer, which leads to a self-cleaning component surface.
  • the term nanolayer used in the context of the invention is therefore preferably based on a surface layer that contains particles whose particle size is in the nanometer range.
  • the nanolayer has a layer thickness that is in the nanometer range.
  • the surface layer has a microstructure in order to reduce the tendency to soiling.
  • WO 96/04123 A1 a self-cleaning component surface that combines a microstructure with a hydrophobic coating to achieve the self-cleaning effect. The content of this patent application is therefore to be attributed to the present description in its entirety.
  • the surface layer according to the invention can fulfill a further technical function in that the surface layer is, for example, wear-reducing, which is evident from the patent application already cited at the outset DE 101 12 854 A1 is known.
  • the base body and the surface layer consist of the same starting material, with the material properties of the surface layer being changed in a targeted manner in order to reduce the tendency of the bell cup to become soiled and/or improve cleanability.
  • the surface of the base body can be blasted for this purpose with blasting techniques (eg water jets, ceramic bead blasting, glass beads, etc.) in order to change the surface properties accordingly.
  • blasting techniques eg water jets, ceramic bead blasting, glass beads, etc.
  • the surface of the base body is irradiated with a laser or etched to produce the desired material properties.
  • the surface layer is produced by plasma processes, for example by plasma-electrolytic oxidation (PEO technology).
  • the base body and the surface layer consist of different starting materials, with the surface layer being applied to the base body as a surface coating.
  • this application of the surface layer can be done by physical vapor deposition (PVD: Physical Vapor Deposition) or by other methods.
  • CVD Chemical Vapor Deposition
  • etching etching
  • laser irradiation ion implantation
  • blasting techniques e.g. water jets, ceramic bead blasting, glass bead blasting
  • classic coating methods such as spraying, dipping, atomizing, brushing, which are particularly suitable for applying organic surface layers.
  • the surface layer has a plurality of regions which are separate from one another and have different properties.
  • the surface layer can, for example, be optimized more for the greatest possible abrasion resistance, whereas good cleanability in such areas has a lower priority.
  • the surface layer in surface areas that are heavily exposed to the paint and are also difficult to access, can primarily be optimized for the lowest possible tendency to soiling, whereas abrasion resistance in these areas only has a lower priority.
  • the surface layer can consist of a material with a high, medium or low surface friction.
  • the same also applies to the wettability of the surface layer, which can optionally consist of a material with very good, good or low/poor wettability.
  • the surface layer can consist of a material with a high ductility, in particular with an elongation at break of more than 5% or 10%.
  • the surface layer consists of a material with medium ductility, in particular with an elongation at break of between 0.5 and 5%.
  • the surface layer consists of a material with low ductility, in particular with an elongation at break of less than 0.5%, 0.3% or 0.1%.
  • the surface layer consists of a material with a low roughness (i.e. Rz ⁇ 10 ⁇ m).
  • the surface layer can optionally consist of a material with high, medium or low abrasion resistance.
  • the corrosion resistance of the surface layer can optionally consist of a material with a high, medium or low corrosion resistance.
  • Corrosion resistance is particularly important when the bell cup consists of non-ferrous metal (copper and its alloys), since non-ferrous metals also corrode in connection with deionized water (DI water). This is important because deionized water is contained in water-based paints and washing-up liquids, so bell cups made of non-ferrous metals must be coated with a corrosion-resistant surface layer.
  • DI water deionized water
  • the coating agent For the finest possible atomization of the coating agent, it is advantageous, for example, to combine the following material properties of the surface layer with one another: low interfacial friction, low wettability, high ductility, low roughness, high abrasion resistance and low corrosion resistance.
  • the cleaning-optimizing surface layer covers the entire surface of the base body.
  • the cleaning-optimizing surface layer only covers the outer surfaces of the base body.
  • the lateral surface and/or the back of the base body are then preferably covered with the surface layer.
  • the surface layer In a further variant of the invention, on the other hand, only an inner surface of the base body is covered with the surface layer. It can be a bell plate be an overflow surface, for example.
  • the surface layer covers the surface of the base body only in partial areas that require optimization of the cleaning properties.
  • this can be the areas of the lateral surface and the overflow surface that are directly adjacent to the spray-off edge.
  • the invention is not limited to a single bell cup that is optimized in terms of its tendency to become soiled or its ability to be cleaned. Rather, the invention also includes a rotary atomizer with a bell cup optimized according to the invention and a complete painting robot with such a rotary atomizer.
  • the invention also includes a production method for producing a bell cup optimized according to the invention, as can already be seen from the above description.
  • figure 1 shows a largely conventional bell cup 1 for a rotary atomizer 2, the bell cup 1 rotating about an axis of rotation 3 during operation.
  • the paint to be applied is fed to the bell plate 1 through a paint tube and then strikes a baffle plate 4 axially, which deflects the paint in the radial direction.
  • the paint then flows along an overflow surface 5 to an annular spray edge 6, at which the paint is sprayed.
  • the bell cup 1 has a conical lateral surface 7 on its outside, which is also known per se from the prior art.
  • the invention now provides that the bell cup 1 is coated on its surface with a surface layer which reduces the tendency to soiling and improves the ability to be cleaned.
  • This surface layer is applied to the overflow surface 5 and the paint-carrying inner surfaces of the bell cup 1 and also extends over the entire lateral surface 7.
  • the entire surface of the bell cup 1 it is also possible within the scope of the invention for the entire surface of the bell cup 1 to be sealed with the surface coating .
  • the surface layer according to the invention contains a nano-layer which implements a lotus effect, so that the bell cup 1 is self-cleaning and only needs a short cleaning if necessary.
  • a special feature of this exemplary embodiment is that the bell cup 1 has a surface layer 8 only in the area of its spraying edge 6 , the surface layer 8 being located both on the overflow surface 5 and on the lateral surface 7 lying on the outside.
  • This exemplary embodiment is characterized in that the surface layer only covers the outer lateral surface 7 and the back of the bell cup 1, whereas the overflow surface 5 and the inner surface of the bell cup 1 remain uncoated.
  • This exemplary embodiment is distinguished in that the bell cup 1 is completely sealed with the surface layer 8 . This means that the entire surface of the bell cup 1 is covered by the surface layer 8.
  • a special feature of this embodiment is that only the overflow 5 and the inner surface of the bell cup 1 is coated with the surface layer.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
  • Laminated Bodies (AREA)
EP13001691.8A 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche Active EP2612710B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009057444A DE102009057444A1 (de) 2009-12-08 2009-12-08 Lackieranlagenbauteil mit einer Oberflächenbeschichtung
EP10787321.8A EP2509714B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche
PCT/EP2010/007356 WO2011069622A2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer oberflächenbeschichtung

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP10787321.8 Division 2010-12-03
EP10787321.8A Division EP2509714B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche
EP10787321.8A Division-Into EP2509714B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche

Publications (3)

Publication Number Publication Date
EP2612710A1 EP2612710A1 (de) 2013-07-10
EP2612710B1 EP2612710B1 (de) 2018-02-07
EP2612710B2 true EP2612710B2 (de) 2023-08-30

Family

ID=43597798

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10787321.8A Active EP2509714B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche
EP13001691.8A Active EP2612710B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche

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Application Number Title Priority Date Filing Date
EP10787321.8A Active EP2509714B2 (de) 2009-12-08 2010-12-03 Lackieranlagenbauteil mit einer modifizierten oberfläche

Country Status (7)

Country Link
US (1) US9731311B2 (es)
EP (2) EP2509714B2 (es)
CN (1) CN102712005B (es)
DE (1) DE102009057444A1 (es)
ES (2) ES2668093T5 (es)
HU (2) HUE038951T2 (es)
WO (1) WO2011069622A2 (es)

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DE102008056411A1 (de) * 2008-11-07 2010-05-20 Dürr Systems GmbH Beschichtungsanlagenbauteil, insbesondere Glockenteller, und entsprechendes Herstellungsverfahren
DE102011085674A1 (de) * 2011-11-03 2013-05-08 Robert Bosch Gmbh Maschinenelement einer Kraftstoffpumpe mit Oberflächen-Mikrostrukturierung
WO2013087073A2 (de) * 2011-12-16 2013-06-20 Herbert Jennissen Substrat mit einer strukturierten oberfläche sowie verfahren zu dessen herstellung sowie verfahren zur bestimmung der benetzungseigenschaften davon
DE102014222240A1 (de) * 2014-10-30 2016-05-04 Continental Automotive Gmbh Ventilvorrichtung für ein Kraftfahrzeug
DE102015004066A1 (de) * 2015-03-28 2016-09-29 Eisenmann Se Wellenelement eines Luftlagers, Luftlager und Rotationszerstäuber
CN106086765B (zh) * 2016-07-25 2019-01-15 北京航空航天大学 一种抗cmas腐蚀微纳米复合结构热障涂层及其制备方法
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DE102019135592A1 (de) * 2019-12-20 2021-06-24 Eisenmann Se Rotationszerstäuber zur Abgabe eines Beschichtungsmittels und Glockenteller hierfür

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Also Published As

Publication number Publication date
EP2612710B1 (de) 2018-02-07
ES2668093T3 (es) 2018-05-16
CN102712005A (zh) 2012-10-03
EP2509714A2 (de) 2012-10-17
CN102712005B (zh) 2016-05-18
US20120305681A1 (en) 2012-12-06
HUE037576T2 (hu) 2018-09-28
WO2011069622A3 (de) 2011-08-04
EP2509714B2 (de) 2020-06-24
WO2011069622A2 (de) 2011-06-16
ES2668093T5 (es) 2021-02-16
DE102009057444A1 (de) 2011-06-09
HUE038951T2 (hu) 2018-12-28
US9731311B2 (en) 2017-08-15
ES2667320T3 (es) 2018-05-10
EP2612710A1 (de) 2013-07-10
ES2667320T5 (es) 2024-02-27
EP2509714B1 (de) 2018-02-07

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