EP0842710A1 - Process for repairing small defects in paint layers - Google Patents

Process for repairing small defects in paint layers Download PDF

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Publication number
EP0842710A1
EP0842710A1 EP97119668A EP97119668A EP0842710A1 EP 0842710 A1 EP0842710 A1 EP 0842710A1 EP 97119668 A EP97119668 A EP 97119668A EP 97119668 A EP97119668 A EP 97119668A EP 0842710 A1 EP0842710 A1 EP 0842710A1
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EP
European Patent Office
Prior art keywords
recess
filler
lacquer
powder
powder coating
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
EP97119668A
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German (de)
French (fr)
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EP0842710B1 (en
Inventor
Fritz Dr. Dannenhauer
Anja Keller
Jürgen Hanf
Klaus Sussmann
Claudia Witt
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.)
Eisenmann Maschinenbau KG (komplementaer Eisenma
Micro Compact Car Smart GmbH
Karl Woerwag Lack und Farbenfabrik GmbH and Co KG
Mercedes Benz Group AG
Original Assignee
MC Micro Compact Car AG
Daimler Benz AG
Eisenmann Anlagenbau GmbH and Co KG
Karl Woerwag Lack und Farbenfabrik GmbH and Co KG
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Application filed by MC Micro Compact Car AG, Daimler Benz AG, Eisenmann Anlagenbau GmbH and Co KG, Karl Woerwag Lack und Farbenfabrik GmbH and Co KG filed Critical MC Micro Compact Car AG
Publication of EP0842710A1 publication Critical patent/EP0842710A1/en
Application granted granted Critical
Publication of EP0842710B1 publication Critical patent/EP0842710B1/en
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    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/005—Repairing damaged coatings
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/08—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by flames

Definitions

  • the invention relates to a method for repairing small Paint defects in paint layers according to the preamble of the claim 1, as it is from the generic JP 1-315 374 (A) emerges as known.
  • JP 1-315 374 A It is known to have minor paint defects, so-called hot spots to be removed using a drill.
  • the remaining largely cylindrical recess is made with a liquid repair lacquer filled, which partially with a mask is covered.
  • the mask points in the area with repair paint filled recess a free space through which a laser light can be directed onto the repair paint.
  • the refinish is made by the energy introduced by the laser light heated and with the lacquer layer surrounding the recess connected.
  • the object of the invention is to develop a method with which, with good optical quality, also powder coatings, in particular Effect powder coatings can be repaired easily and cheaply can.
  • the task is based on a generic method with the characterizing process steps of the claim 1 solved.
  • the recess By inserting the recess with regard to their area and also their depth exactly defined dimensions in the powder coating layer, can then into the recess according to the volume of the Recess dimensioned, in particular the dimensions of the recess corresponding, and at least in some areas connected
  • Packing material made of powder coating and / or a preliminary product of the powder coating can be introduced.
  • the filler introduced is then arranged with the outside of the recess Powder coating layer either completely or only connected in areas, in particular glued.
  • the invention Repairs can therefore be carried out quickly and cheaply.
  • the repair can also be carried out on the production line be made, which is particularly true for vehicles with a cantilever frame according to the space-frame concept, inexpensive is.
  • the repair method points towards one large-area repair with wet paint a low emission, with what an at least lower filter and cleaning effort, as well a low disposal effort, for example associated with the overspray is. This in turn is also a reduction in price associated with the procedure.
  • Figure 1 is a section of a section through a with a Powder coating layer 2 provided substrate 5, which Substrate 5 made of metal, for example. Plastic and / or fiber reinforced Plastic can be made. Furthermore, that Substrate 5 - as shown - be curved. On the substrate 5 are in addition to the powder coating layer, in particular up to 100 ⁇ m thick 2 For example, the usual layers, namely a primer layer 6, an impact protection layer 7 and a filler layer 8 applied. Depending on the application, the powder coating layer of course, be thicker.
  • a faulty location 9 is an oval body in cross section drawn in, which is, for example, a speck of dust 10 can act, when applying the powder of the powder coating on the visible surface 11 of the powder coating layer 2 created and connected with the powder coating.
  • the frame becomes the faulty one Position 9 of the hardened powder coating layer in particular 2 in a narrow area with a cylindrical Provide recess 1. Due to the maximum depth of the powder coating layer 2 introduced recess 1 is in the present Case at the same time eliminates the speck of dust 10.
  • the recess 1 is cutting and in this case in particular by milling or grinding into the powder coating layer 2 introduced. Furthermore, the recess 1 can also be drilled and / or sawn holes and / or burned out by laser and / or are punched out and / or ground. For all types of Introduction of the recess 1 in the powder coating layer 2 is to make sure that the recess 1 in terms of its area, or width B and also with respect to their depth T with exactly defined dimensions and with a given edge contour is introduced into the powder coating layer 2.
  • a powder coating is inserted into the cylindrical recess 1 and / or a preliminary product of the powder coating plate-like filler 3 introduced; i.e. the contour of the The bottom of the packing 2 is flat and the bottom of the recess 1 adjusted.
  • the edges of the packing 3 are the corresponding ones Adjusted edges of the cylindrical recess 1.
  • the one which is at least partially cross-linked before being introduced into the recess 1 Packing body 3 corresponds to the volume of the recess 1 dimensioned and coherent in the sense of a monolith; i.e. the diameter of the monolithically related Packing body 3 corresponds approximately to the width B of the recess 1 and the layer thickness of the filling body 3 is approximately the depth T of Recess 1.
  • this exact dimensioning in can be realized in a simple manner in that the packing 3 molded from a previously produced paint film, in particular is punched out. With at least some effect powder coatings this lacquer film is used to maintain the desired optical properties expediently by electrostatic spraying produced.
  • the packing 3 arranged in the recess 1 is connected to the powder coating layer 2 arranged outside the cutout 1 connected.
  • the connection is preferably made by an adhesive layer 12, which in particular before the introduction of the Filler 3 in the recess 1 along the corresponding Walls of the packing 3 is arranged.
  • the filler introduced into the recess 1 3 and possibly also the adhesive layer 12 heated and / or brought to reaction.
  • the reaction hardens in particular the packing 3 and possibly also the Adhesive layer 12.
  • the reaction is preferably carried out by UV radiation and / or electromagnetic, in particular IR radiation, and / or hot air is introduced and / or maintained.
  • the filler 3 have a volume shrinkage during curing can, it is favorable to fill the body 3 with a volume provided that approximately the volume of the recess 1 plus the volume shrinkage of the packing that occurs during curing 3 corresponds.
  • Such discontinuity on these two edges can For example, with a correspondingly flexible and elastic adhesive layer 12, which is used to connect the packing 3 with the Walls of the recess 1 surrounding it is provided, balanced will.
  • FIG. 5 shows the faulty location 9 for repair according to FIG. 1, the faulty location 9, in particular the bound one and hardened powder coating layer 2 in a narrowly limited range Area provided with a frustoconical recess 21.
  • the cutout has 21 not a cylindrical but a truncated cone Cross section on, with the cone towards the substrate 5 closes.
  • the maximum depth of the Powder coating layer 2 introduced recess 21 at the same time Dust 10 removed.
  • the frustoconical recess 21 is a powder coating and / or a preliminary product of the powder coating, in particular plate-like filler 23 introduced, the Contour of the bottom of the packing 23 and the contour of the Bottom of the recess 21 is adapted.
  • the edges of the packing 23 are in terms of their geometric dimensions and also with regard to their course, for example when they are introduced the recess 21 is not necessarily round, but possibly can also be kidney-shaped, for example, the edges of the recess 23 adjusted.
  • the filler 23 To insert the filler 23 into the recess 21, cover the entire surface with a previously described lacquer film covered.
  • the filler 23 becomes from the covering lacquer film ejected and introduced directly into the recess 21 when ejecting and / or is pressed in.
  • the packing 23 arranged in the recess 21 is connected to the powder coating layer 2 arranged outside the recess 21 connected by the measures listed above.
  • the difference to the embodiment of Figures 2 to 4 here the connection is not made with the help of an adhesive layer 12, but through a direct connection of the material of the filler 23 with the material surrounding it Powder coating layer 2.
  • the connection of the packing 23 with the However, powder coating layer 2 does not have to be along the entire length common area, but can be shared on individual Partial areas may be limited. In the case of fragments 22 formed packing 23 are at the same time the fragments 22 connected in the same way.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Paints Or Removers (AREA)

Abstract

The method involves cutting out the fault over a strictly limited region, filling the recess and bonding the filling to the surrounding paint layer. Powder paint or powder slurry is used for the painting. The recess (1) is made to precise measurements of depth and surface in the paint layer (2). A filling body of powder paint and/or of an ingredient of the paint is fitted in the recess. It is then bonded, e.g. glued, to the paint layer surrounding the recess. The depth of the recess should not exceed that of the paint layer.

Description

Die Erfindung betrifft ein Verfahren zur Reparatur kleiner Lackfehler in Lackschichten gemäss dem Oberbegriff des Anspruchs 1, wie es aus der gattungsbildend zugrundegelegten JP 1-315 374 (A) als bekannt hervorgeht.The invention relates to a method for repairing small Paint defects in paint layers according to the preamble of the claim 1, as it is from the generic JP 1-315 374 (A) emerges as known.

Aus der JP 1-315 374 (A) ist es bekannt, kleinere Lackfehler, sogenannte hot-spots, mittels eines Bohrers zu entfernen. Die verbleibende weitgehend zylindrische Aussparung wird mit einem flüssigen Reparaturlack gefüllt, welcher mit einer Maske teilweise abgedeckt wird. Die Maske weist im Bereich der mit Reparaturlack gefüllten Aussparung eine Freistelle auf, durch die ein Laserlicht auf den Reparaturlack gerichtet werden kann. Durch die vom Laserlicht eingebrachte Energie wird der Reparaturlack erwärmt und mit der die Aussparung umgebenden Lackschicht verbunden.From JP 1-315 374 (A) it is known to have minor paint defects, so-called hot spots to be removed using a drill. The remaining largely cylindrical recess is made with a liquid repair lacquer filled, which partially with a mask is covered. The mask points in the area with repair paint filled recess a free space through which a laser light can be directed onto the repair paint. The refinish is made by the energy introduced by the laser light heated and with the lacquer layer surrounding the recess connected.

Wird ein derartiges Verfahren auf Pulverlackschichten aus Pulverlack und/oder Pulverslurry - im folgenden vereinfachend ebenfalls Pulverlack genannt - übertragen, ergeben sich bei akzeptablem Arbeitsaufwand nur unbefriedigende Ergebnisse. Bei sogenannten Effekt-Pulverlackschichten, die mit einem elektrostatischen Spritzverfahren aufgetragen werden müssen, ist ein derartiges Verfahren sogar gänzlich ungeeignet, da dann im Bereich der Aussparung der Effekt der Pulverlackschicht nicht sichtbar und die zuvor fehlerhafte Stelle gut zu erkennen ist. Unter anderem aus diesem Grund werden mit Effekt-Lacken pulverlackierte fehlerhafte Flächen ganzflächig nachlackiert. Bei einer Nachlackierung mit Pulverlack wären insbesondere bei Kraftfahrzeugen nahezu alle gegen hohe Temperaturen empfindliche Teile und damit nahezu alle Kunststoffteile aufwendig und teuer zu entfernen, weshalb hierbei die Reparatur i.a. mit normalen flüssigen Lacken vorgenommen wird. Im Falle fehlerhafter Lackierungen bei sogenannten Space-frame-Rahmen, die nach deren Lackierung mit bereits gefärbten Anbauteilen versehen werden, gilt dies zwar nicht in diesem Maße, dennoch ist auch hier der Aufwand zur Reparatur sehr hoch und/oder im Falle von Effekt-Pulverlacken aus den schon genannten Gründen ebenfalls ungeeignet.Such a method is used on powder coating layers made of powder coating and / or powder slurry - in the following simplifying also called powder coating - transferred, result in an acceptable Labor only unsatisfactory results. At so-called effect powder coating layers, which with an electrostatic Spraying must be applied is a such a method is even completely unsuitable, because then in the area the recess does not have the effect of the powder coating layer visible and the previously faulty spot is clearly visible. This is one of the reasons why powder coatings are used with effect paints defective surfaces repainted all over. At a Repainting with powder paint would be particularly useful in motor vehicles almost all sensitive to high temperatures Parts and thus almost all plastic parts are complex and expensive to remove, which is why the repair i.a. with normal liquid paints is made. In case of faulty paintwork in so-called space frame frames, which according to their Painting with already colored attachments, this does not apply to this extent, but here too it is Repair work very high and / or in the case of effect powder coatings also unsuitable for the reasons already mentioned.

Die Aufgabe der Erfindung ist es, ein Verfahren zu entwickeln, mit dem bei guter optischen Qualität auch Pulverlacke, insbesondere Effekt-Pulverlacke einfach und billig repariert werden können.The object of the invention is to develop a method with which, with good optical quality, also powder coatings, in particular Effect powder coatings can be repaired easily and cheaply can.

Die Aufgabe wird bei einem gattungsgemäss zugrundegelegten Verfahren mit den kennzeichnenden Verfahrensschritten des Anspruchs 1 gelöst. Durch das Einbringen der Aussparung mit hinsichtlich ihrer Fläche und auch hinsichtlich ihrer Tiefe genau definierten Abmessungen in die Pulverlackschicht, kann anschließend in die Aussparung ein entsprechend dem Volumen der Aussparung bemasster, insbesondere ein den Abmessungen der Aussparung entsprechender, und zumindest bereichsweise zusammenhängender Füllkörper aus Pulverlack und/oder einem Vorprodukt des Pulverlackes eingebracht werden. Der eingebrachte Füllkörper wird anschließend mit der ausserhalb der Aussparung angeordneten Pulverlackschicht entweder vollständig oder auch nur bereichsweise verbunden, insbesondere verklebt. Die erfindungsgemäße Reparatur ist daher schnell und billig vorzunehmen. Gleichzeitig kann die Reparatur auch in der Produktionslinie vorgenommen werden, was insbesondere bei Fahrzeugen mit einem freitragenden Rahmen gemäß dem space-frame-Konzept, günstig ist. Gleichzeitig weist die Reparaturmethode gegenüber einer großflächigen Reparatur mit Naßlack eine geringe Emission, womit ein zumindest geringerer Filter- und Reinigungsaufwand, sowie ein geringer Entsorgungsaufwand bspw. des Oversprays verbunden ist. Damit wiederum ist gleichfalls eine Verbilligung des Verfahrens verbunden.The task is based on a generic method with the characterizing process steps of the claim 1 solved. By inserting the recess with regard to their area and also their depth exactly defined dimensions in the powder coating layer, can then into the recess according to the volume of the Recess dimensioned, in particular the dimensions of the recess corresponding, and at least in some areas connected Packing material made of powder coating and / or a preliminary product of the powder coating can be introduced. The filler introduced is then arranged with the outside of the recess Powder coating layer either completely or only connected in areas, in particular glued. The invention Repairs can therefore be carried out quickly and cheaply. At the same time, the repair can also be carried out on the production line be made, which is particularly true for vehicles with a cantilever frame according to the space-frame concept, inexpensive is. At the same time, the repair method points towards one large-area repair with wet paint a low emission, with what an at least lower filter and cleaning effort, as well a low disposal effort, for example associated with the overspray is. This in turn is also a reduction in price associated with the procedure.

Weitere sinnvolle Ausgestaltungen sind den Unteransprüchen entnehmbar. Im übrigen wird die Erfindung anhand von in den Figuren dargestellten Ausführungsbeispielen im folgenden nähers erläutert. Dabei zeigt

Fig. 1
einen Ausschnitt eines Schnitts durch ein mit Pulverlack lackiertes und eine Fehlerstelle aufweisendes Substrat,
Fig. 2
Figur 1 mit im Bereich der Fehlerstelle eingebrachter zylindrischer Aussparung,
Fig. 3
Figur 2 mit in die zylindrische Aussparung eingebrachtem und mit einer Klebstoffschicht versehenem Füllkörper,
Fig. 4
Figur 3 nach auf der Pulverlackschicht aufgebrachter Klarlackschicht,
Fig. 5
Figur 1 mit im Bereich der Fehlerstelle eingebrachter Aussparung mit kegelstumpfförmigem Querschnitt und
Fig. 6
Figur 5 mit in die kegelstupfförmige Aussparung eingebrachtem Füllkörper.
Further useful configurations can be found in the subclaims. Otherwise, the invention is explained in more detail below on the basis of exemplary embodiments illustrated in the figures. It shows
Fig. 1
a section of a section through a substrate coated with powder coating and having a defect,
Fig. 2
FIG. 1 with a cylindrical recess made in the area of the defect,
Fig. 3
FIG. 2 with a filler introduced into the cylindrical recess and provided with an adhesive layer,
Fig. 4
FIG. 3 after the clear lacquer layer applied to the powder lacquer layer,
Fig. 5
Figure 1 with recess made in the area of the fault with a frustoconical cross section and
Fig. 6
Figure 5 with filler introduced into the frustoconical recess.

In Figur 1 ist ein Ausschnitt eines Schnittes durch ein mit einer Pulverlackschicht 2 versehenes Substrat 5 dargestellt, welches Substrat 5 bspw. aus Metall. Kunststoff und/oder faserverstärktem Kunststoff gefertigt sein kann. Ferner kann das Substrat 5 - wie dargestellt - gewölbt sein. Auf dem Substrat 5 sind neben der insbesondere bis zu 100 µm dicken Pulverlackschicht 2 bspw. die üblichen Schichten und zwar eine Grundierschicht 6, eine Schlagschutzschicht 7 und eine Füllerschicht 8 aufgetragen. Je nach Anwendungsfall kann die Pulverlackschicht natürlich auch dicker sein.In Figure 1 is a section of a section through a with a Powder coating layer 2 provided substrate 5, which Substrate 5 made of metal, for example. Plastic and / or fiber reinforced Plastic can be made. Furthermore, that Substrate 5 - as shown - be curved. On the substrate 5 are in addition to the powder coating layer, in particular up to 100 µm thick 2 For example, the usual layers, namely a primer layer 6, an impact protection layer 7 and a filler layer 8 applied. Depending on the application, the powder coating layer of course, be thicker.

Als fehlerbehaftete Stelle 9 ist ein im Querschnitt ovaler Körper eingezeichnet, bei dem es sich bspw. um ein Staubkorn 10 handeln kann, das sich bei Aufbringen des Pulvers des Pulverlackes an der sichtseitigen Oberfläche 11 der Pulverlackschicht 2 angelegt und mit dem Pulverlack verbunden hat.A faulty location 9 is an oval body in cross section drawn in, which is, for example, a speck of dust 10 can act, when applying the powder of the powder coating on the visible surface 11 of the powder coating layer 2 created and connected with the powder coating.

Zur Reparatur der fehlerbehafteten Stelle 9 in eng begrenztem Rahmen wird, wie in Figur 2 dargestellt, die fehlerbehaftete Stelle 9 der insbesondere abgebundenen und gehärteten Pulverlackschicht 2 in eng begrenztem Bereich mit einer zylindrischen Aussparung 1 versehen. Durch die auf maximal die Tiefe der Pulverlackschicht 2 eingebrachte Aussparung 1 wird im vorliegenden Fall gleichzeitig das Staubkorn 10 beseitigt.To repair the faulty location 9 in a limited space As shown in Figure 2, the frame becomes the faulty one Position 9 of the hardened powder coating layer in particular 2 in a narrow area with a cylindrical Provide recess 1. Due to the maximum depth of the powder coating layer 2 introduced recess 1 is in the present Case at the same time eliminates the speck of dust 10.

Günstigerweise wird die Aussparung 1 spanend und hierbei insbesondere mittels Fräsen oder Schleifen in die Pulverlackschicht 2 eingebracht. Desweiteren kann die Aussparung 1 auch gebohrt und/oder lochgesägt und/oder mittels Laser ausgebrannt und/oder ausgestanzt und/oder geschlifren werden. Bei allen Arten der Einbringung der Aussparung 1 in die Pulverlackschicht 2 ist darauf zu achten, daß die Aussparung 1 hinsichtlich ihrer Fläche, bzw. Breite B und auch hinsichtlich ihrer Tiefe T mit genau definierten Abmessungen sowie mit einer vorgegebenen Randkontur in die Pulverlackschicht 2 eingebracht wird. Conveniently, the recess 1 is cutting and in this case in particular by milling or grinding into the powder coating layer 2 introduced. Furthermore, the recess 1 can also be drilled and / or sawn holes and / or burned out by laser and / or are punched out and / or ground. For all types of Introduction of the recess 1 in the powder coating layer 2 is to make sure that the recess 1 in terms of its area, or width B and also with respect to their depth T with exactly defined dimensions and with a given edge contour is introduced into the powder coating layer 2.

Anschließend wird in die zylindrische Aussparung 1 ein aus Pulverlack und/oder einem Vorprodukt des Pulverlackes gebildeter plättchenartiger Füllkörper 3 eingebracht; d.h. die Kontur des Bodens des Füllkörpers 2 ist eben und dem Boden der Aussparung 1 angepaßt. Ebenso sind die Ränder des Füllkörpers 3 den entsprechenden Rändern der zylindrischen Aussparung 1 angepaßt. Der vor dem Einbringen in die Aussparung 1 zumindest teilvernetzte Füllkörper 3 ist entsprechend dem Volumen der Aussparung 1 bemasst und im Sinne eines Monoliten zusammenhängend ausgebildet; d.h. der Durchmesser des monolitisch zusammenhängenden Füllkörpers 3 entspricht in etwa der Breite B der Aussparung 1 und die Schichtdicke des Füllkörpers 3 in etwa der Tiefe T der Aussparung 1.Then a powder coating is inserted into the cylindrical recess 1 and / or a preliminary product of the powder coating plate-like filler 3 introduced; i.e. the contour of the The bottom of the packing 2 is flat and the bottom of the recess 1 adjusted. Likewise, the edges of the packing 3 are the corresponding ones Adjusted edges of the cylindrical recess 1. The one which is at least partially cross-linked before being introduced into the recess 1 Packing body 3 corresponds to the volume of the recess 1 dimensioned and coherent in the sense of a monolith; i.e. the diameter of the monolithically related Packing body 3 corresponds approximately to the width B of the recess 1 and the layer thickness of the filling body 3 is approximately the depth T of Recess 1.

Hinsichtlich des Füllkörpers 3 kann diese genaue Bemaßung in einfacher Weise dadurch realisiert werden, dass der Füllkörper 3 aus einer zuvor hergestellten Lackfolie geformt, insbesondere ausgestanzt wird. Bei zumindest einigen Effekt-Pulverlacken wird diese Lackfolie zur Erhaltung gewünschter optischer Eigenschaften zweckmäßigerweise durch elektrostatisches Spritzen hergestellt.With regard to the packing 3, this exact dimensioning in can be realized in a simple manner in that the packing 3 molded from a previously produced paint film, in particular is punched out. With at least some effect powder coatings this lacquer film is used to maintain the desired optical properties expediently by electrostatic spraying produced.

Der in der Aussparung 1 angeordnete Füllkörper 3 wird mit der ausserhalb der Aussparung 1 angeordneten Pulverlackschicht 2 verbunden. Die Verbindung erfolgt vorzugsweise durch eine Klebstoffschicht 12, die insbesondere schon vor der Einbringung des Füllkörpers 3 in die Aussparung 1 entlang der entsprechenden Wandungen des Füllkörpers 3 angeordnet wird.The packing 3 arranged in the recess 1 is connected to the powder coating layer 2 arranged outside the cutout 1 connected. The connection is preferably made by an adhesive layer 12, which in particular before the introduction of the Filler 3 in the recess 1 along the corresponding Walls of the packing 3 is arranged.

Anschließend wird der in der Aussparung 1 eingebrachte Füllkörper 3 und ggf. auch die Klebstoffschicht 12 erhitzt und/oder zur Reaktion gebracht. Durch die Erhitzung und/oder durch die Reaktion härtet insbesondere der Füllkörper 3 und ggf. auch die Klebstoffschicht 12 aus. Die Reaktion wird vorzugsweise durch UV-Strahlung und/oder elektromagnetische, insbesondere IR-Strahlung, und/oder heisser Luft eingeleitet und/oder aufrechterhalten. Then the filler introduced into the recess 1 3 and possibly also the adhesive layer 12 heated and / or brought to reaction. By heating and / or by The reaction hardens in particular the packing 3 and possibly also the Adhesive layer 12. The reaction is preferably carried out by UV radiation and / or electromagnetic, in particular IR radiation, and / or hot air is introduced and / or maintained.

Da der Füllkörper 3 beim Aushärten einen Volumenschwund aufweisen kann, ist es günstig, den Füllkörper 3 mit einem Volumen zu versehen, das in etwa dem Volumen der Aussparung 1 zuzüglich dem beim Aushärten auftretenden Volumenschwund des Füllkörpers 3 entspricht.Since the filler 3 have a volume shrinkage during curing can, it is favorable to fill the body 3 with a volume provided that approximately the volume of the recess 1 plus the volume shrinkage of the packing that occurs during curing 3 corresponds.

Wie insbesondere aus der stark übertriebenen Darstellung nach Figur 3 ersichtlich, sollte die Wölbung des Substrats 5 bzw. der sichtseitigen Oberfläche 11 der Pulverlackschicht 2 nicht allzu groß sein, da ansonst der Rand des Füllkörpers 3 über den Rand der Aussparung 1 sichtbar herausragen bzw. abgesetzt sein kann.As can be seen in particular from the greatly exaggerated presentation 3 can be seen, should the curvature of the substrate 5 or the visible side surface 11 of the powder coating layer 2 is not be too large, otherwise the edge of the packing 3 over the Project the edge of the recess 1 visibly or be offset can.

Eine derartige Diskontinuität an diesen beiden Rändern kann bspw. mit einer entsprechend flexiblen und elastischen Klebstoffschicht 12, der zur Verbindung des Füllkörpers 3 mit den Wandungen der ihn umgebenden Aussparung 1 vorgesehen ist, ausgeglichen werden.Such discontinuity on these two edges can For example, with a correspondingly flexible and elastic adhesive layer 12, which is used to connect the packing 3 with the Walls of the recess 1 surrounding it is provided, balanced will.

Desweiteren kann es beim Auftragen einer weiteren, insbesondere einer Klarlackschicht 4 auf die Pulverlackschicht 2 von Vorteil sein, die Einbringung der Aussparung 1 und die Befüllung der Aussparung 1 mit dem Füllkörper 1 vor der Aufbringung der Klarlackschicht 4 vorzunehmen (siehe Figur 4).Furthermore, when applying another, in particular a clear lacquer layer 4 on the powder lacquer layer 2 is advantageous be, the introduction of the recess 1 and the filling of the Recess 1 with the filler 1 before the application of the clear lacquer layer 4 to make (see Figure 4).

Sollte eine fehlerhafte Stelle 9 erst nach einer eventuellen Aufbringung der Klarlackschicht 4, bemerkt werden, kann zur Reparatur weitgehend analog verfahren werden, wobei es nunmehr sinnvoll ist, hierzu einen aus dem Pulverlack gebildeten Füllkörper zu verwenden, der zusätzlich sichtseitig mit einer Klarlackschicht versehen ist, wobei die Schichtdicke dieser Klarlackschicht in etwa derjenigen Klarlackschicht 4 entspricht, die ansonst auf der Pulverlackschicht 2 des Substrats 5 angeordnet ist. Should a faulty digit 9 only after a possible Application of the clear coat 4, can be noticed for repair to be largely analog, but now it makes sense to do this, a filler formed from the powder coating to use, the additional visible side with a clear coat is provided, the layer thickness of this clear coat corresponds approximately to that of the clear lacquer layer 4, which is otherwise arranged on the powder coating layer 2 of the substrate 5 is.

In Figur 5 ist wird zur Reparatur der fehlerbehafteten Stelle 9 nach Figur 1 die fehlerbehaftete Stelle 9 der insbesondere abgebundenen und gehärteten Pulverlackschicht 2 in eng begrenztem Bereich mit einer kegelstumpfförmigen Aussparung 21 versehen. Im Gegensatz zu der Aussparung 1 nach Figur 2 weist die Aussparung 21 also keinen zylindrischen, sondern ein kegelstumpfförmigen Querschnitt auf, wobei sich der Kegel zum Substrat 5 hin schließt. Auch hier wird durch die auf maximal die Tiefe der Pulverlackschicht 2 eingebrachte Aussparung 21 gleichzeitig das Staubkorn 10 beseitigt.FIG. 5 shows the faulty location 9 for repair according to FIG. 1, the faulty location 9, in particular the bound one and hardened powder coating layer 2 in a narrowly limited range Area provided with a frustoconical recess 21. In contrast to the cutout 1 according to FIG. 2, the cutout has 21 not a cylindrical but a truncated cone Cross section on, with the cone towards the substrate 5 closes. Here too the maximum depth of the Powder coating layer 2 introduced recess 21 at the same time Dust 10 removed.

Um unnütze Wiederholungen zu vermeiden wird bei diesem Ausführungsbeispiel nach den Figuren 5 und 6 nur noch auf die Unterschiede eingegangen.In order to avoid unnecessary repetitions in this embodiment according to Figures 5 and 6 only on the differences received.

In die kegelstumpfförmige Aussparung 21 wird ein aus Pulverlack und/oder einem Vorprodukt des Pulverlackes gebildeter, insbesondere plättchenartiger Füllkörper 23 eingebracht, wobei die Kontur des Bodens des Füllkörpers 23 eben und der Kontur des Bodens der Aussparung 21 angepaßt ist. Die Ränder des Füllkörpers 23 sind hinsichtlich ihrer geometrischen Maße und auch hinsichtlich ihres Verlaufes, der bspw. bei einer Einbringung der Aussparung 21 nicht notwendigerweise rund, sondern ggf. auch bspw. nierenförmig sein kann, den Rändern der Aussparung 23 angepaßt.In the frustoconical recess 21 is a powder coating and / or a preliminary product of the powder coating, in particular plate-like filler 23 introduced, the Contour of the bottom of the packing 23 and the contour of the Bottom of the recess 21 is adapted. The edges of the packing 23 are in terms of their geometric dimensions and also with regard to their course, for example when they are introduced the recess 21 is not necessarily round, but possibly can also be kidney-shaped, for example, the edges of the recess 23 adjusted.

Zum Einbringen des Füllkörpers 23 in die Aussparung 21, wird diese mit einer zuvor schon beschriebenen Lackfolie vollflächig abgedeckt. Aus der abdeckenden Lackfolie wird der Füllkörper 23 ausgestoßen und beim Ausstoßen direkt in die Aussparung 21 eingebracht und/oder eingedrückt wird.To insert the filler 23 into the recess 21, cover the entire surface with a previously described lacquer film covered. The filler 23 becomes from the covering lacquer film ejected and introduced directly into the recess 21 when ejecting and / or is pressed in.

Hierbei kann es geschehen, daß der Füllkörper 23 in einzelne Bruchstücke 22 zerfällt. Ein vor dem Abbinden mit der verbliebenen Pulverlackschicht 2 aus einzelnen Bruchstücken 22 gebildeter Füllkörper ist im Sinne der Erfindung auch als ein zusammenhängender Füllkörper 23 zu verstehen; d.h. der in der Aussparung 1 angeordnete gesamte Füllkörper 3 muß vor dessen Verbindung mit den Wandungen bzw. dem Boden der Aussparung 1 nicht unbedingt vollständig monolitisch ausgebildet sein.It can happen that the filler 23 in individual Fragments 22 disintegrates. One before tying with the remaining one Powder coating layer 2 formed from individual fragments 22 Filling body is in the sense of the invention also as a coherent To understand packing 23; i.e. the one in the recess 1 arranged entire packing 3 must be connected to it not with the walls or the bottom of the recess 1 must be completely monolithic.

Der in der Aussparung 21 angeordnete Füllkörper 23 wird mit der ausserhalb der Aussparung 21 angeordneten Pulverlackschicht 2 durch die oben angeführten Maßnahmen verbunden. Im Unterschied zu dem Ausführungsbeispiel nach den Figuren 2 bis 4 erfolgt hier die Verbindung nicht unter einer Zuhilfenahme einer Klebstoffschicht 12, sondern durch eine direkte Verbindung des Materials des Füllkörpers 23 mit dem ihn umgebenden Material der Pulverlackschicht 2. Die Verbindung des Füllkörpers 23 mit der Pulverlackschicht 2 muß allerdings nicht entlang der gesamten gemeinsamen Fläche erfolgen, sondern kann auf einzelnen gemeinsame Teilflächen begrenzt sein. Im Falle von aus Bruchstücken 22 gebildeten Füllkörpern 23 werden gleichzeitig die Bruchstücke 22 in gleicher Weise miteinander verbunden.The packing 23 arranged in the recess 21 is connected to the powder coating layer 2 arranged outside the recess 21 connected by the measures listed above. The difference to the embodiment of Figures 2 to 4 here the connection is not made with the help of an adhesive layer 12, but through a direct connection of the material of the filler 23 with the material surrounding it Powder coating layer 2. The connection of the packing 23 with the However, powder coating layer 2 does not have to be along the entire length common area, but can be shared on individual Partial areas may be limited. In the case of fragments 22 formed packing 23 are at the same time the fragments 22 connected in the same way.

Claims (17)

Verfahren zur Reparatur kleiner Lackfehler in Lackschichten, bei dem die fehlerbehaftete Stelle der Lackschicht in eng begrenztem Bereich ausgespart, die Aussparung gefüllt und die Füllung mit der die Aussparung umgebenden Lackschicht verbunden wird,
dadurch gekennzeichnet,
dass zur Lackierung Pulverlacke bzw. Pulverslurry, im folgenden vereinfachend ebenfalls Pulverlacke genannt - verwendet werden, dass die Aussparung (1, 21) hinsichtlich ihrer Fläche und auch hinsichtlich ihrer Tiefe mit genau definierten Abmessungen in die Pulverlackschicht (2) eingebracht wird, dass in die Aussparung (1, 21) ein entsprechend dem Volumen der Aussparung (1, 21) bemasster, insbesondere ein den Abmessungen der Aussparung (1, 21) entsprechender, und zumindest bereichsweise zusammenhängender Füllkörper (3, 23) aus Pulverlack und/oder einem Vorprodukt des Pulverlackes eingebracht wird und dass der eingebrachte Füllkörper (3, 23) mit der ausserhalb der Aussparung (1, 21) angeordneten Pulverlackschicht (2) verbunden, insbesondere verklebt wird. Process for repairing small lacquer defects in lacquer layers, in which the faulty area of the lacquer layer is cut out in a narrowly limited area, the recess is filled and the filling is connected to the lacquer layer surrounding the recess,
characterized,
that powder lacquers or powder slurry, also called powder lacquers for the sake of simplicity, are used for lacquering, that the recess (1, 21) is introduced into the powder lacquer layer (2) with precisely defined dimensions in terms of its area and also its depth, that in the Recess (1, 21) a filler (3, 23) made of powder coating and / or a preliminary product of the filler (3, 23), which is dimensioned according to the volume of the recess (1, 21), in particular a filler body (3, 23) that corresponds to the dimensions of the recess (1, 21) and is at least partially connected Powder coating is introduced and that the introduced filler (3, 23) is connected, in particular glued, to the powder coating layer (2) arranged outside the recess (1, 21). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Aussparung (1, 21) auf maximal die Tiefe (T) der Pulverlackschicht (2) eingebracht wird.Method according to claim 1,
characterized,
that the recess (1, 21) is made to a maximum of the depth (T) of the powder coating layer (2). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Aussparung (1, 21) spanend eingebracht wird.Method according to claim 1,
characterized,
that the recess (1, 21) is machined. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Aussparung (1, 21) gefräst und/oder lochgesägt und/oder mittels Laser ausgebrannt und/oder ausgestanzt und/oder geschliffen wird.Method according to claim 1,
characterized,
that the recess (1, 21) is milled and / or sawn and / or burned out by laser and / or punched out and / or ground. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der die Aussparung (1, 21) zumindest weitgehend ausfüllende Füllkörper (3, 23) vor dem Einbringen in die Aussparung (1, 21) zumindest teilvernetzt wird.Method according to claim 1,
characterized,
that the filler (3, 23) which at least largely fills the recess (1, 21) is at least partially crosslinked before being introduced into the recess (1, 21). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der in der Aussparung (1, 21) eingebrachte Füllkörper (3, 23) erhitzt und insbesondere durch die Erhitzung ausgehärtet wird.Method according to claim 1,
characterized,
that the filler (3, 23) introduced into the recess (1, 21) is heated and in particular is cured by the heating. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der in der Aussparung (1, 21) eingebrachte Füllkörper (3, 23) mittels elektromagnetischer Strahlung, insbesondere IR-Strahlung, und/oder heisser Luft erhitzt und insbesondere durch die Erhitzung ausgehärtet wird.Method according to claim 1,
characterized,
that the filler (3, 23) introduced in the recess (1, 21) is heated by means of electromagnetic radiation, in particular IR radiation, and / or hot air and is cured in particular by the heating. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der in der Aussparung (1, 21) eingebrachte Füllkörper (3, 23) mittels UV-Strahlung zur Reaktion gebracht, insbesondere ausgehärtet wird.Method according to claim 1,
characterized,
that the filler (3, 23) introduced into the recess (1, 21) is reacted, in particular cured, by means of UV radiation. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass als Füllkörper (3, 23) ein Plättchen gewählt wird, dessen Schichtdicke in etwa der Tiefe (T) der Aussparung (1, 21) entspricht.Method according to claim 1,
characterized,
that a plate is selected as the filler (3, 23), the layer thickness of which corresponds approximately to the depth (T) of the recess (1, 21). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass das Volumen des Füllkörpers (3, 23) dem Volumen der Aussparung (1, 21) zuzüglich einem beim Aushärten des Füllkörpers (3, 23) auftretenden Volumenschwund angepaßt wird und daß der Füllkörper (3, 23) nach dem Einbringen in die Aussparung (1, 21) ausgehartet wird.Method according to claim 1,
characterized,
that the volume of the filler (3, 23) is adapted to the volume of the recess (1, 21) plus a decrease in volume that occurs when the filler (3, 23) hardens and that the filler (3, 23) after it has been introduced into the recess ( 1, 21) is cured. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass in die Aussparung (1, 21) ein geometrisch der Lochgeometrie der Aussparung (1, 21) angepaßter Füllkörper (3, 23) eingebracht wird.Method according to claim 1,
characterized,
that a filler (3, 23) which is geometrically adapted to the hole geometry of the recess (1, 21) is introduced into the recess (1, 21). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Aussparung (1, 21) als Loch mit ebenem Boden eingebracht wird und dass als Füllkörper (3, 23) ein Plättchen gewählt wird, dessen Randverlauf der Aussparung (1, 21) und dessen Höhe dem der Tiefe der Aussparung (1, 21) entspricht.Method according to claim 1,
characterized,
that the recess (1, 21) is made as a hole with a flat bottom and that a plate is chosen as the filler (3, 23), the edge course of the recess (1, 21) and the height of the depth of the recess (1, 21 ) corresponds. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der Füllkörper (3, 23) vor seiner Einbringung in die Aussparung (1, 21) elektrostatisch gespritzt wird.Method according to claim 1,
characterized,
that the filler (3, 23) is electrostatically sprayed before it is introduced into the recess (1, 21). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der Füllkörper (3, 23) aus einer zuvor hergestellten Lackfolie geformt wird.Method according to claim 1,
characterized,
that the filler (3, 23) is formed from a previously produced lacquer film. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass der Füllkörper (3, 23) aus einer zuvor durch elektrostatisches Spritzen hergestellten Lackfolie geformt wird.Method according to claim 1,
characterized,
that the filler (3, 23) is formed from a lacquer film previously produced by electrostatic spraying. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Einbringung und die Befüllen der Aussparung (1, 21) vor der Aufbringung einer weiteren Schicht, insbesondere einer Klarlackschicht (4) vorgenommen wird.Method according to claim 1,
characterized,
that the insertion and filling of the recess (1, 21) is carried out before the application of a further layer, in particular a clear lacquer layer (4). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Aussparung (1, 21) mit einer aus Pulverlack gebildeten Lackfolie vollflächig abgedeckt wird, dass der Füllkörper (3, 23) aus der abdeckenden Lackfolie ausgestoßen wird und daß der Füllkörper (3, 23) beim Ausstoßen direkt in die Aussparung (1, 21) eingebracht und/oder eingedrückt wird.Method according to claim 1,
characterized,
that the recess (1, 21) is covered over the entire surface with a lacquer film formed from powder lacquer, that the filler (3, 23) is ejected from the covering lacquer film and that the filler (3, 23) is ejected directly into the recess (1, 21) is introduced and / or pressed in.
EP97119668A 1996-11-13 1997-11-11 Process for repairing small defects in paint layers Expired - Lifetime EP0842710B1 (en)

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DE19646956 1996-11-13
DE19646956A DE19646956C1 (en) 1996-11-13 1996-11-13 Process for repairing small paint defects in paint layers

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ATE211661T1 (en) 2002-01-15
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ES2170322T3 (en) 2002-08-01
JPH10156274A (en) 1998-06-16
EP0842710B1 (en) 2002-01-09
US5997941A (en) 1999-12-07
NO975201L (en) 1998-05-14
NO975201D0 (en) 1997-11-12
KR19980042351A (en) 1998-08-17

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