WO2008062019A1

WO2008062019A1 - Method for the assembly or repair of components, preferably for motor vehicles, method for preparing components for assembly or repair, motor vehicles comprising at least one first and one second component and prepared component

Info

Publication number: WO2008062019A1
Application number: PCT/EP2007/062652
Authority: WO
Inventors: Martin Hopf
Original assignee: Tesa Se
Priority date: 2006-11-23
Filing date: 2007-11-21
Publication date: 2008-05-29
Also published as: DE102006055665A1

Abstract

The invention relates to a method for the assembly or repair of components (10, 11), preferably for motor vehicles, whereby a first component (10) and a second component (11) are interconnected by means of at least one joining component (12) and said joining component (12) is arranged between a surface area (13) of the first component (10) and a surface area (14) of the second component (11). According to the invention, the surface area (13) of the first component (10) is connected to a primer component (15) that has an adhesive surface (17) from a support material (18) associated with the joining component (12) on a face (16) facing away from the surface area (13) of the first component (10). The invention also relates to a method for preparing a component for assembly or repair, to a motor vehicle comprising at least one first and one second component (11, 12) and to a prepared component (10).

Description

description

Method for assembling or repairing components, preferably for motor vehicles, method for pretreatment for assembly or repair, motor vehicle with at least a first and a second component and pretreated component

The invention relates to a method for assembling or repairing components, preferably for motor vehicles, a method for pretreatment for a mounting or repair, a motor vehicle having at least a first and a second component and a pretreated component according to the preambles of the independent claims.

In vehicle construction, different methods for connecting two components, for example a plastic component with a vehicle body, are known. Especially plastics, which are used particularly often in vehicle construction, are characterized by different polarity on the surfaces, which has a considerable influence on the type of attachment. Often, the mentioned mechanical fastening methods prove to be inadequate. In addition, the types of plastic used are complex, such as polypropylene, PP-EPDM, polyurethane and the like., And are determined by different requirements on their geometry, surface finish, chemical, UV and temperature resistance, longevity, etc., and from a variety of recipes.

There are known fastening methods such as plugging, latching, clamping and screws, which withstands the desired mechanical loads. These methods are characterized by the introduction of additional holes in the shell or additional materials such as clamps or screws in the assembly process. The workplaces must be designed accordingly, but the time required for assembly and the cost are considerable. Furthermore, the visual impression of these mechanical fastening methods may be unsatisfactory. The designerischen possibilities are limited because mechanical fasteners such as rivets and screws often give an unsatisfactory visual impression. Especially at Plastic skins such as moldings or sill extensions are less suitable for such fastening methods.

Plastic skins are usually completely or partially glued by means of strips of double-sided adhesive tape to the painted vehicle body. The self-adhesive tapes along the components permanently fix the plastic parts on the painted body. The particular geometries, the dimensions of the plastic components, e.g. Threshold extensions made of one piece, etc. require high-quality adhesive tape solutions that are met, for example, by high-quality adhesive tape made of acrylic foam, whereby a kind of sealing and an optically uniform gap between plastic part and body can be achieved.

The problem with this is, however, that in all double-sided adhesive foam tapes covered by a liner adhesive layers are subject to aging and even with optimal storage conditions only a limited

Shelf life for processing of about two to three years. This means that the adhesive tapes, which have already been applied to the plastic parts, are only able to process for a limited time. This circumstance has a disadvantageous effect, for example, for a serial process, such as when gluing side protection strips. In addition, spare parts can be stocked only conditionally. At the latest after the shelf life of the adhesive tape, the plastic part is unusable. The stored parts must be scrapped and replaced with fresh new parts. The scrapping of superimposed parts in combination with the resulting new production of spare parts makes the spare parts inventory considerably more expensive.

The invention has for its object to provide a method for assembling or repair of components, preferably for motor vehicles and a method for pretreatment for assembly or repair, which are independent of the limited shelf life of self-adhesive service parts. In addition, an improved motor vehicle with at least a first and a second component and an improved pretreated component is to be provided.

The achievement of this object is the features of the independent claims, advantageous embodiments of the invention describe the dependent claims. An inventive method for assembling or repairing components, preferably for motor vehicles, is based on a first component and a second component, which are connected by means of at least one joining component, wherein the joining component between a surface region of the first and a

Surface region of the second component is arranged. According to the invention, the surface region of the first component is connected to a primer component which has, on the side facing away from said surface region of the first component, an adhesive surface of a carrier material assigned to the joining component. In a method according to the invention for the pretreatment for assembly or repair of components, the surface region of the first component is joined to a primer component which has on the side facing away from said surface region of the first component an adhesive surface of a carrier material assigned to the joining component.

The first component is in particular a plastic replacement part, for example in the form of a decorative strip, a Schwellerverbreiterung, or another to be applied plastic part to understand, which can be connected to the second component, preferably provided with a paint layer metal sheet. Particularly preferably, the first component is formed from a plastic, in particular from polypropylene, PP-EPDM or polyurethane. Furthermore, strips made of ABS and ABS-PC are also in use. The second component may in particular be designed as a painted vehicle body surface.

As a joining component is preferably a conventional, double-sided adhesive

Foam tape used, which can be delivered as roll goods. To protect the adhesive layer, a cover film may be provided on the adhesive layer. An adhesive tape made of a foam, in particular an acrylate foam or a polyethylene foam, is particularly preferably used as the joining component.

An advantage of the proposed solution is that the first components, such as the plastic parts to be bonded, can be stored without the limited storable joining component. Rather, only when needed fresh, double-sided adhesive foam tape can be supplied. However, even before the storage of the first component, a particularly preferred

Primer component are applied to the first component. This will be advantageous - A -

enables a serial production. Conveniently, prior to the connection of the said surface region of the first component with the primer component, a pre-positioning of the primer component on the surface region can take place. The primer component is particularly preferably formed aging resistant. In particular, for example, a tape, an adhesive tape or a self-adhesive tape can be used for this purpose. The workshop or the repair operation is favorably relieved of the problem of surface treatment of the adhesive surfaces on the component by the application of the primer component to the first component before it is stored.

It is particularly advantageous that, due to the aging-stable primer component, a storage of the first component can take place temporally after the connection of the first component to the primer component and before the connection of the first component to the second component. While this does not invalidate the limited shelf life of the rolls of tape, it is irrelevant to that

Stocking of the much more expensive components provided with the aging-stable primer component. These are conveniently unlimited storage.

Appropriately, the adhesive surface is temporally after the storage of the first component and before the connection of the first component with the second component of a

Subjected to cleaning and / or mechanical pretreatment. The adhesive surface is formed for example from a film, wherein as a carrier material preferably a plastic film, a plastic fabric or a nonwoven fabric is used. The carrier material can be connected to the first component over the full area, line-wise and / or point-like cohesively. The task of the workshop after storage of the components is thus to clean the adhesive surface on the film and hang up the separately delivered, double-sided adhesive foam tape. This step can be carried out quickly.

In a further method step, the area between the

Adhesive base component and the said surface region of the first component an adhesive mass are introduced. Particularly preferably, the adhesive surface may have a surface energy in a range between 18 and 30 mN / m, here, as in the other statements in the present text, the surface energy was determined according to DIN ISO 8296. The adhesive composition can be full-surface, linear and / or punctiform cohesively connected to the first component and / or the carrier material.

In a preferred variant, the carrier material can be connected by means of ultrasonic or high-frequency welding, a heat and / or pressure activation with the first component.

In a further variant, an adhesive composition, in particular a heat-activatable adhesive composition, can be connected to the first component by means of ultrasonic welding, heat and / or pressure activation.

For the connection of the first component and the carrier material it is also possible to use an adhesive mass suitable for the connection of low-energy surfaces with a surface energy in a range of up to 28 mN / m. Advantageously, problems with the bonding are thus avoided, which arise in particular in the case of first components formed from plastic, which often have low-energy surfaces. It is also conceivable to use a film with a special separate adhesive mass for low-energy surfaces, which is glued directly onto the first component.

In a motor vehicle according to the invention with at least one first and one second component, assembly or repair of components takes place according to one of the method steps described above. In a pretreated component according to the invention, the pretreatment takes place according to one of the previously described method step.

Overall, the proposed solution allows an unlimited supply of spare parts. Instead of a limited storable, double-sided adhesive foam tape, a film is advantageously applied to the first, designed as a plastic spare part component. Such equipped plastic components can be provided directly in the workshop with the tape without time-consuming further, surface-effective treatment. The connection with the plastic part can be carried out conveniently over the previously applied film. A particularly great advantage is that the double-sided adhesive foam tape required for the assembly is supplied separately only shortly before the requirement and glued manually to the cleaned film becomes. A stocking is not necessary. The gluing to the body can then be done as usual.

The film associated with the plastic part is aging resistant and desirably has no expiration date. Thus, the thus prepared plastic components are subject to unlimited storage time. In addition, there are no restrictions on the climate when storing the plastic parts with foil as a primer. The scrapping of superimposed plastic parts with adhesive tape is eliminated. The joining component designed as a double-sided adhesive tape can easily be procured and stored separately.

The invention will be described in more detail below with reference to the drawings, from which further features, details and advantages of the invention are given, independently of the summary in the patent claims.

In a schematic representation:

Figure 1 in the delivery state, provided with a preferred adhesive base component first component, which is connected via a separately supplied joining component with a second component.

Fig. 2 in the assembled state, the first component in connection with the second component; 3 a representation of a schematic sequence of a method for connecting the primer component to the first component, wherein the method takes place before the storage of the first component.

Identical elements are provided in the figures with the same reference numerals.

FIG. 1 shows a first component 10 provided with a preferred primer component 15 as delivered, which is connected to a second component 11 via a separately supplied joining component 12. In Fig. 2 + 3, the first component 10 in the assembled state with the second component 1 1 is shown. The first component 10 is designed in particular as a plastic replacement part, as a second component 1 1 preferably provided with a paint layer metal sheet. As a joining component 12, a preferably double-sided adhesive tape with an adhesive layer 21, 22 is used. In particular, suitable as joining component 12 is an adhesive tape made of a foam, in particular an acrylate foam or a polyethylene foam, in question. To protect the adhesive layer 21, 22 in the unused state, a cover 20 is provided.

The first and the second component 10, 11 are usually connected to a joining component 12 which is preferably designed as a double-sided adhesive tape, the joining component 12 being arranged between a defined surface area 13 of the first component 10 and a defined surface area 14 of the second component 11. In a method for pretreatment for a mounting or repair of a first component 10 with the second component 11, the surface region 13 of the first component 10 is connected to a primer component 15, wherein the side 16 facing away from said surface region 13 of the first component 10 is a the joining component 12 associated adhesive surface 17 of a carrier material 18 has.

In particular, a tape, an adhesive tape or an age-resistant self-adhesive adhesive tape is provided as primer component 15.

The carrier material 18 used is preferably a plastic film, a plastic fabric or a nonwoven fabric, it being possible for the carrier material 18 to be connected to the first component 10 in a full-surface, line-shaped and / or punctiform manner.

It can thus take place temporally after the connection of the first component 10 with the primer component 15 and before the connection of the first component 10 with the second component 1 1, a storage of the first component 10. Temporally before the connection of the said surface area 13 of the first component 10 with the

Primer component 15, a pre-positioning of the primer component 15 on the surface region 13 take place. In the area between the primer component 15 and the said surface region 13, an adhesive compound 19 is preferably introduced, which is bonded to the first component 10 and / or the carrier material 18 in a full-surface, linear and / or punctiform manner. The adhesive surface 17 favorably has a surface energy of up to 30 mN / m. The first component 10 is then stored together with the primer component 15 and, if necessary, delivered in this state.

After the storage of the first component 10 and before the connection of the first component 10 with the second component 11, the adhesive surface 17 is subjected to a cleaning and / or mechanical pretreatment.

FIG. 3 shows a schematic sequence of a method for connecting the primer component 15 to the first component 10, wherein the method takes place before the storage of the first component 10.

First, the primer component 15 is glued to the first component 10 and pre-fixed in position. The adhesive base component 15 designed as a self-adhesive tape may consist of various carrier materials 18 such as plastic film, plastic fabric or nonwoven fabrics without a separating surface coating and / or treatment and is adhesive on one side. Overall, the primer component 15 has a high internal strength.

Several variants of a connection of the primer component 15 with the first component 10 are possible:

In a first variant, the carrier material 18 can be connected to the first component 10 by means of ultrasonic or high-frequency welding, a heat and / or pressure activation. In this case, the support material 18 can undergo thermoplastic material under heat and pressure a cohesive connection to the first component 10.

In a further variant, the adhesive mass 19 can also be connected to the first component 10 by means of ultrasonic welding, heat and / or pressure activation. The adhesive mass 19, which is in the form of a self-adhesive, can form a permanent connection to the first component 10 under the action of pressure, time and room temperature. Preferably, the adhesive mass 19 can be activated under increased heat, pressure and time and enter into a permanent connection to the first component 10. The carrier material 18 formed as an adhesive film with the heat-activated adhesive 19 can then be laminated directly onto the first component 10. Moreover, it is also possible for the connection of the first component 10 and the carrier material 18 to use an adhesive mass 19 suitable for the connection of low-energy surfaces with a surface energy of up to 28 mN / m. The film 18 with the adhesive mass 19 can then be glued directly onto the first component 10. Also, a foil 18 may be provided with a separate low energy surface adhesive 19 adhered directly to the first component.

The splitting force of the primer component 15 is then greater than the holding forces of the welded connection or the heat-activated adhesive mass 19 to the first component 10, which would be equal to a material fracture in the plastic. The adhesive mass 19 of the primer component 15 can in this case build up such a high strength to the first component 10 that the application of the double-sided adhesive component 12 on the back of the primer component 15 is possible and withstands the desired mechanical loads.

To achieve even higher strengths between the primer component 15 and the first component 10, a welding process, e.g. ultrasonic welding, or high-frequency welding, possible. Here, the first component 10 under heat and pressure either over the entire surface, linear and / or punctiform cohesively with the

Primer component 15 connected. Alternatively, a high strength between the primer component 15 and the first component 10 by the either full-surface, linear and / or punctiform melting of heat-activated adhesive masses 19 are thinned.

All mentioned variants of fastening methods affect neither the design, the geometry nor the flatness of the first component 10. The pretreatment is thus completed and is not subject to any special periods in which the further processing of the pretreated first component 10 has to be carried out.

In a subsequent assembly process, a joining component 12 is applied to the primer component 15, which joins the polar surfaces of the lacquer layer on the vehicle and the rear side of the primer component 15. Thus, the first component 10 is permanently fixed and can withstand the requirements without delamination appearing in the edge region. An adhesive tape made of a foam such as a high-quality acrylate foam or a cheaper polyethylene foam can be used additionally or alternatively as a seal and to define an optically uniform gap between the first component 10 and the second component 1 1 and applied immediately prior to application.

The first components 10 can be brought into the market (OEM, repair process) and for assembly on the manufacturer's or logistics side as required, without having to take account of expiry dates or best-before dates. The additional costs of overlays are thus conveniently avoided.

LIST OF REFERENCE NUMBERS

10 first component

1 1 second component

12 joining component

13 surface area of 10

14 surface area of 1 1

15 primer component

16 page

17 adhesive surface

18 carrier material

19 adhesive mass

20 cover film

21 adhesive layer

22 adhesive layer

Claims

claims

1 . Method for assembling or repairing components (10, 11), preferably for motor vehicles, wherein a first component (10) and a second component (11) are connected by means of at least one joining component (12) and the

Joining component (12) between a surface region (13) of the first component (10) and a surface region (14) of the second component (1 1) is arranged, characterized in that the surface region (13) of the first component (10) with a primer component (15) is connected, on the side facing away from said surface region (13) of the first component (10) side (16) one of the joining component (12) associated adhesive surface (17) of a carrier material (18).

2. A method for pretreatment for a mounting or repair of a first component (10), preferably for motor vehicles, which with a second component

(1 1), preferably for motor vehicles, by means of at least one joining component (12) can be connected, wherein the joining component (12) between a surface region (13) of the first component (10) and a surface region (14) of the second component (1 1 ) can be arranged, characterized in that the surface region (13) of the first component (10) with a

Adhesive base component (15) is connected, which on the said surface region (13) of the first component (10) facing away from the side (16) of the joining component (12) associated adhesive surface (17) of a carrier material (18).

3. The method according to claim 1 or 2, characterized in that temporally after the connection of the first component (10) with the primer component (15) and before the connection of the first component (10) with the second component (1 1) a storage of the first component (10) takes place.

4. The method according to any one of the preceding claims, characterized in that temporally after the storage of the first component (10) and before the connection of the first component (10) with the second component (1 1) the adhesive surface (17) of a cleaning and / or subjected to mechanical pretreatment.

5. The method according to any one of the preceding claims, characterized in that prior to the connection of said surface region (13) of the first component (10) with the primer component (15), a pre-positioning of the primer component (15) on the surface region (13).

6. The method according to claim 5, characterized in that a tape, an adhesive tape or a self-adhesive tape, preferably without separating surface coating or treatment is used.

7. The method according to any one of the preceding claims, characterized in that in the region between the primer component (15) and said surface region (13) an adhesive mass (19) is introduced.

8. The method according to any one of the preceding claims, characterized in that the adhesive surface (17) has a surface energy in a range up to

30m N / m.

9. The method according to any one of the preceding claims, characterized in that a plastic film, a plastic fabric or a nonwoven fabric is used as the carrier material.

10. The method according to any one of the preceding claims, characterized in that the carrier material (18) over the entire surface, linear and / or punctiform cohesively with the first component (10) is connected.

1 1. A method according to any one of the preceding claims 7 to 10, characterized in that the adhesive mass (19) over the entire surface, linear and / or punctiform cohesively with the first component (10) and / or the carrier material (18) is connected.

12. The method according to at least one of the preceding claims, characterized in that the carrier material (18) by means of ultrasonic or high-frequency welding, a heat and / or pressure activation with the first component (10) is connected.

13. The method according to at least one of the preceding claims, characterized in that the adhesive mass (19) by means of an ultrasonic welding, a heat and / or pressure activation with the first component (10) is connected.

14. The method according to any one of the preceding claims, characterized in that for the connection of the first component (10) and carrier material (18) suitable for the connection of low-energy surfaces with a surface energy in a range of 18 to 30 mN / m suitable adhesive composition ( 19) is used.

15. The method according to at least one of the preceding claims, characterized in that a preferably double-sided adhesive tape is used as the joining component (12).

16. The method according to any one of the preceding claims, characterized in that as a joining component (12) an adhesive tape of a foam, in particular an acrylate foam, polyurethane foam or a polyethylene foam, is used.

17. The method according to any one of the preceding claims, characterized in that the first component (10) consists of a plastic, in particular polypropylene, PP-EPDM or polyurethane.

18. The method according to any one of the preceding claims, characterized in that the second component (1 1) is preferably provided with a paint layer metal sheet.

19. Motor vehicle with at least a first and a second component, characterized in that an assembly or repair of components (1 1, 12) according to one of claims 1 to 18 is carried out.

20. pretreated component, characterized in that the pretreatment according to one of claims 2 to 18 is carried out.