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DE19808573A1 - Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components - Google Patents

Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components

Info

Publication number
DE19808573A1
DE19808573A1 DE1998108573 DE19808573A DE19808573A1 DE 19808573 A1 DE19808573 A1 DE 19808573A1 DE 1998108573 DE1998108573 DE 1998108573 DE 19808573 A DE19808573 A DE 19808573A DE 19808573 A1 DE19808573 A1 DE 19808573A1
Authority
DE
Germany
Prior art keywords
painted
pretreatment
flame
treated
components
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Withdrawn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
DE1998108573
Other languages
German (de)
Inventor
Johann Weindl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE1998108573 priority Critical patent/DE19808573A1/en
Publication of DE19808573A1 publication Critical patent/DE19808573A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/02Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/08Pretreatment 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D65/00Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

Areas in which components are to be attached are flame treated with a gas containing an adhesion enhancing coupling agent. Preferred Features: The flame burner movement over the treated area is governed by a robot. A miniature flame is employed whose largest diameter is adapted to the width of the area to be treated.

Description

Die Erfindung bezieht sich auf ein Verfahren der im Oberbegriff des ersten An­ spruchs angegebenen Art.The invention relates to a method in the preamble of the first to Art.

Im Automobilbau ist es üblich, daß verschiedene Bauteile an der fertig lackierten Karosserie angeklebt werden. So werden beispielsweise Türdichtungen auf die Tür bzw. den Türausschnitt der Karosserie aufgeklebt, Zierleisten an Türaußenseiten und vieles weitere mehr. Die Klebung muß so ausgeführt werden, daß die anzukle­ benden Bauteile über Jahre hinaus an Ort und Stelle bleiben und insbesondere nicht durch Witterungseinflüsse wie Temperatur, Kälte, Regen, Streusalze oder Wasch­ anlagen abgelöst werden.In automotive engineering, it is common for various components to be painted on the finished Body to be glued. For example, door seals are placed on the door or the door cutout of the body glued on, trim strips on the outside of the door and much more. The gluing must be carried out so that the glue components remain in place for years and in particular not due to weather influences such as temperature, cold, rain, road salt or washing plants will be replaced.

Aus diesem Grunde ist es erforderlich, den Bereich, an dem ein Bauteil angeklebt wird, vorher zu reinigen. Dies geschieht mit Hilfe von Lösungsmitteln und Einweg­ tüchern sowie individuell durch Werker. Bei einer derartigen Vorgehensweise ist es notwendig, eine Ablüftzeit von mindestens 1 Minute einzuhalten, was bedeutet, daß die Reinigung einige Takte vor der eigentlichen Verklebung erfolgen muß. Hierbei ist eine Neuverschmutzung der Klebefläche in der Zwischenzeit nicht ausgeschlossen. Ebenso ist nicht ausgeschlossen, daß die Reinigung der Aufnahmefläche jeweils mit der erforderlichen Sorgfalt durchgeführt wird. For this reason, it is necessary to identify the area to which a component is glued is going to clean beforehand. This is done with the help of solvents and disposable towels as well as individually by workers. With such an approach, it is necessary to allow a flash-off time of at least 1 minute, which means that the cleaning must be done a few bars before the actual gluing. Here is a new contamination of the adhesive surface in the meantime is not excluded. It is also not excluded that the cleaning of the receiving surface with each the necessary care is taken.  

Aufgabe der vorliegenden Erfindung ist es, hier Abhilfe zu schaffen und den Reini­ gungsvorgang zu vereinfachen.The object of the present invention is to remedy this situation and the Reini simplification process.

Dies wird erfindungsgemäß durch die Merkmale des ersten Anspruchs erreicht. Durch die Behandlung der das anzuklebende Bauteil aufzunehmenden Fläche mit Hilfe einer Flamme, der ein Haftvermittler zugesetzt ist, entfallen die Einwegtücher und das Lösungsmittel und damit auch die Ablüftzeit. Durch diese Vorgehensweise wird die behandelte Fläche auf einen energetisch günstigeren Zustand gebracht.This is achieved according to the invention by the features of the first claim. By treating the surface to be glued with the component With the help of a flame to which an adhesion promoter has been added, disposable wipes are not required and the solvent and thus the flash-off time. By doing this the treated area is brought to an energetically more favorable condition.

Es wurde überraschenderweise festgestellt, daß dieser energetisch günstigere Zustand sogar mehrere Tage andauert, so daß die Verklebung theoretisch auch einige Tage nach der erfindungsgemäßen Behandlung durchgeführt werden könnte, wenn in der Zwischenzeit sichergestellt werden kann, daß keine erneute Verschmutzung eintreten kann.It was surprisingly found that this is more energetically favorable Condition lasts even several days, so that the bonding theoretically too could be carried out a few days after the treatment according to the invention, if it can be ensured in the meantime that no renewed Pollution can occur.

Somit ist es vorteilhaft, die Reinigung direkt vor dem Klebvorgang durchzuführen, so daß die bisher mögliche Neuverschmutzungsmöglichkeit zwischen Reinigung und Ankleben nicht mehr eintreten kann.It is therefore advantageous to carry out the cleaning directly before the gluing process that the previously possible possibility of new pollution between cleaning and Sticking can no longer occur.

Ein weiterer Vorteil liegt darin, daß durch die Flamme die vorzubehandelnde Fläche erwärmt wird, was gerade in Wintermonaten positiv ist, weil ein sicheres Verkleben nur ab einer Mindesttemperatur möglich ist.Another advantage is that the surface to be pretreated by the flame is heated, which is positive in winter months in particular because it sticks securely is only possible from a minimum temperature.

Als Brenngas kann Propan, Butan, Erdgas oder Stadtgas eingesetzt werden, als Haftvermittler, der sich für die Klebflächenaktivierung an lackierten Bauteilen, die mit einem lösungsmittelhaltigen Einkomponenten-Klarlack behandelt sind, eignet sich eine siliziumorganische Verbindung wie SiO2, die in den Brenner eingespeist wird. Sie ist im Handel unter der Bezeichnung Silan verfügbar.Propane, butane, natural gas or town gas can be used as the fuel gas, and an organosilicon compound such as SiO 2 , which is fed into the burner, is suitable as an adhesion promoter, which is suitable for activating the adhesive surface on painted components that have been treated with a solvent-containing one-component clear coat . It is commercially available under the name silane.

Die Vorbehandlung von weiterzuverarbeitenden Bauteilen mit Hilfe einer Flamme, die sogenannte Flammpyrolyse, ist bei Kunststoffbauteilen bekannt, um hier die für eine spätere Lackierung notwendige Vorbehandlung, nämlich die Versiegelung der Kunststoffoberfläche, durchzuführen. Der Einsatz der Flammpyrolyse an lackierten Bauteilen, die mit einem lösungsmittelhaltigen Einkomponenten-Klarlack lackiert wurden, wurde jedoch bisher nicht für möglich gehalten.The pretreatment of components to be processed using a flame, the so-called flame pyrolysis, is known in plastic components, here for  a subsequent painting necessary pretreatment, namely the sealing of the Plastic surface. The use of flame pyrolysis on painted Components that are coated with a solvent-based one-component clear lacquer have not yet been considered possible.

Die Weiterbildung nach Anspruch 2 hat den Vorteil, daß der Klebflächen­ aktivierungsvorgang automatisiert werden kann, da es wesentlich einfacher ist, einen Roboter mit einer offenen Flamme entlang einer Aktivierungsfläche zu steu­ ern, als dies möglich wäre, wenn der Roboter ein Reinigungstuch bedienen müßte.The development according to claim 2 has the advantage that the adhesive surfaces activation process can be automated as it is much easier to steer a robot with an open flame along an activation surface than would be possible if the robot had to operate a cleaning cloth.

Die Verwendung einer Miniaturflamme hat den Vorteil, daß die Aktivierungsfläche der Aufnahmefläche für das anzuklebende Bauteil angepaßt werden kann, so daß das Gasgemisch mit dem Haftvermittler optimal eingesetzt werden kann. Dies ist insbesondere dann von Vorteil, wenn Türdichtungen oder Zierleisten, also Bauteile mit einer geringen Breite aber großen Länge, angeklebt werden sollen.The use of a miniature flame has the advantage that the activation area the receiving surface for the component to be glued can be adjusted so that the gas mixture with the adhesion promoter can be used optimally. This is This is particularly advantageous if door seals or trim strips, i.e. components with a small width but a large length.

Mit dem erfindungsgemäßen Verfahren können Flächen aktiviert werden mit bis zu 800 mm pro Sekunde. Hierbei können die üblichen Verschmutzungen, wie Hand­ schweiß, Polierwachsreste, Hohlraumwachs o. ä. problemlos entfernt werden, so daß anschließend das anzuklebende Bauteil aufgeklebt werden kann.With the method according to the invention, areas can be activated with up to 800 mm per second. Here, the usual dirt, such as hand Sweat, polishing wax residues, cavity wax or the like can be removed without problems, see above that the component to be glued can then be glued on.

Es hat sich auch herausgestellt, daß die Klebstoff-Flächen-Aktivierung mehrere Tage anhält, so daß der Anklebvorgang erst später durchgeführt werden kann, wenn in der Zwischenzeit sichergestellt ist, daß keine Neuverschmutzung eintritt.It has also been found that the adhesive surface activation has several Days lasts, so that the gluing process can only be carried out later when in the meantime it is ensured that no new pollution occurs.

Claims (3)

1. Verfahren zur Vorbehandlung von Aufnahmeflächen an lackierten Bauteilen, insbesondere von Kraftfahrzeugkarosserien, die mit einem lösungsmit­ telhaltigen Einkomponenten-Klarlack lackiert sind, und an denen weitere Bauteilen angeklebt werden sollen, dadurch gekennzeichnet, daß die zur Aufnahme der anzuklebenden Bauteile vorgesehenen Flächen mittels Flammpyrolyse behandelt werden, wobei dem zu verbrennenden Gas ein Haftvermittler zugesetzt ist.1. Process for the pretreatment of receiving surfaces on painted components, in particular motor vehicle bodies, which are coated with a one-component clear varnish containing solvents, and to which further components are to be glued, characterized in that the surfaces provided for receiving the components to be glued are treated by means of flame pyrolysis are, wherein an adhesion promoter is added to the gas to be burned. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das mit dem Haftvermittler versetzte Gas einem Brenner zugeleitet wird, der mittels eines Roboters entlang der vorzu­ behandelnden Bereiche geführt wird.2. The method according to claim 1, characterized in that the gas mixed with the coupling agent is fed to a burner, which is moved along the path by a robot treating areas. 3. Verfahren nach Anspruch 1 oder 2 zur Behandlung von Flanschflächen, dadurch gekennzeichnet, daß eine Miniaturflamme verwendet wird, deren größter Durchmesser der zu behandelnden Flanschbreite angepaßt ist.3. The method according to claim 1 or 2 for the treatment of flange surfaces, characterized in that a miniature flame is used, the largest diameter of the flange width to be treated is adapted.
DE1998108573 1998-02-28 1998-02-28 Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components Withdrawn DE19808573A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998108573 DE19808573A1 (en) 1998-02-28 1998-02-28 Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998108573 DE19808573A1 (en) 1998-02-28 1998-02-28 Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components

Publications (1)

Publication Number Publication Date
DE19808573A1 true DE19808573A1 (en) 1999-09-02

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DE1998108573 Withdrawn DE19808573A1 (en) 1998-02-28 1998-02-28 Pretreatment of surfaces on painted objects, especially vehicle bodywork, to enhance adhesion between painted surface and additional components

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DE (1) DE19808573A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928649A1 (en) * 1999-06-23 2000-12-28 Porsche Ag Method for manufacturing multi-shell body part of vehicle involves painting outer and inner shell and then removing paint from areas intended for subsequent sticking with adhesive
DE102006003940A1 (en) * 2006-01-26 2007-08-02 Volkswagen Ag Bonding of seals onto structures (especially vehicle bodywork) involves pretreatment of the structure with a warm medium such as air or a plasma
DE102010032744A1 (en) * 2010-07-29 2012-02-02 Kiekert Ag Method and device for applying a seal to a surface of a device housing for a motor vehicle
DE102012112607A1 (en) * 2012-12-19 2014-06-26 W. Döllken & Co. GmbH Plastic strip
RU2574877C2 (en) * 2010-07-29 2016-02-10 Киекерт Акциенгезельшафт Sealant application of car device body surface
CN111868306A (en) * 2018-01-26 2020-10-30 日本制铁株式会社 Flame treatment device, manufacturing device and manufacturing method of coated metal sheet
DE102022205099B3 (en) 2022-05-23 2023-09-28 Hertfelder GmbH Process for cleaning plastic surfaces

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BERGER,Steffen, u.a.: Metallklebverbindungen beständiger durch Silicoater-Behandlung? In: kleben & dichten Adhäsion, Jg.37, 6/93, S.28-33 *
GERSTENBERG,K.W.: Korona - Plasma - Flamme - Licht, Ein Vergleich physikalischer Vorbehand- lungen (2.Teil). In: COATING 10/94, S.355,356 *
TILLER,Hans-Jürgen, u.a.: Silicoater-Verfahren verbessert Haftfestigkeit und Alterungsbeständig- keit. In: Adhäsion 1989, H.10, S.27-31 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928649A1 (en) * 1999-06-23 2000-12-28 Porsche Ag Method for manufacturing multi-shell body part of vehicle involves painting outer and inner shell and then removing paint from areas intended for subsequent sticking with adhesive
DE102006003940A1 (en) * 2006-01-26 2007-08-02 Volkswagen Ag Bonding of seals onto structures (especially vehicle bodywork) involves pretreatment of the structure with a warm medium such as air or a plasma
DE102010032744A1 (en) * 2010-07-29 2012-02-02 Kiekert Ag Method and device for applying a seal to a surface of a device housing for a motor vehicle
WO2012013184A3 (en) * 2010-07-29 2014-09-04 Kiekert Aktiengesellschaft Method and device for applying a seal to a surface of a device housing for a motor vehicle
RU2574877C2 (en) * 2010-07-29 2016-02-10 Киекерт Акциенгезельшафт Sealant application of car device body surface
DE102012112607A1 (en) * 2012-12-19 2014-06-26 W. Döllken & Co. GmbH Plastic strip
CN111868306A (en) * 2018-01-26 2020-10-30 日本制铁株式会社 Flame treatment device, manufacturing device and manufacturing method of coated metal sheet
DE102022205099B3 (en) 2022-05-23 2023-09-28 Hertfelder GmbH Process for cleaning plastic surfaces

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8139 Disposal/non-payment of the annual fee