EP3233307A1 - Method for producing a decorative part of a motor vehicle - Google Patents
Method for producing a decorative part of a motor vehicleInfo
- Publication number
- EP3233307A1 EP3233307A1 EP15823688.5A EP15823688A EP3233307A1 EP 3233307 A1 EP3233307 A1 EP 3233307A1 EP 15823688 A EP15823688 A EP 15823688A EP 3233307 A1 EP3233307 A1 EP 3233307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- masking layer
- temporary
- product
- temporary masking
- layer
- 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- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0285—Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
- B05D1/265—Extrusion 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
- B05D1/322—Removable films used as masks
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
- B05D1/322—Removable films used as masks
- B05D1/325—Masking layer made of peelable film
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
-
- 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
- B05D3/002—Pretreatement
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
- B05D7/26—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials synthetic lacquers or varnishes
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J177/00—Adhesives based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Adhesives based on derivatives of such polymers
-
- 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
- B05D2201/00—Polymeric substrate or laminate
- B05D2201/02—Polymeric substrate
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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
- B05D2505/00—Polyamides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
Definitions
- the present invention relates to a method for producing a motor vehicle part made of plastic. More specifically, the method is preferably directed at producing a part of appearance, undergoing a step of spraying a product such as a decorative coating, for example paint.
- This part is called part of appearance because it has a visible part from outside or inside the vehicle once mounted on the vehicle.
- the appearance part can be for example an outer skin of tailgate assembled on an inner lining, a spoiler, a side door, a hood, etc.
- the zone to be protected is a fastening zone making it possible to fix the appearance part with another piece of vehicle, possibly by gluing.
- This fixing area must be as clean as possible before the glue is placed on it, ie it must not be polluted or soiled before fixing.
- the product spraying step on the appearance part usually performed by spraying the part prior to its attachment with the part to be fixed, can generate the deposition of fine droplets of paint on the fastening area.
- the paint particles are dispersed in fog and can pass on the other side of the room, depositing in the form of a sail.
- the area to be protected is a part of the surface of appearance intended to be devoid of paint, usually for a decorative purpose. In this case also, we do not want paint to be deposited on the area to be protected.
- the present invention is intended in particular to facilitate the method of producing a motor vehicle part.
- the subject of the present invention is a method for producing a piece of a motor vehicle made of plastic material, the method comprising a product spraying step and the part having an area to be protected during the spraying, characterized in that it comprises the following steps:
- a fluid material forming a temporary masking layer is applied to the zone to be protected, this step being carried out automatically,
- the temporary masking layer is removed.
- the temporary masking layer we protect the area to be protected, avoiding that it is covered with residues from the painting step.
- an automatic method can be used to deposit it by a robot. The process can therefore be faster, more accurate and repeatable easily.
- swing masking or masking
- Such a swing is a wall disposed in front of the area to be protected during product spraying on the part, forming a protective screen.
- the difficulty of such a swing lies in the fact that it must match exactly the shape of the room to ensure the sealing function of the sprayed product, which is difficult because the rooms and swing seats do not always have the same dimensions due to manufacturing tolerances.
- the product spray on the part may be for example a sprinkling step of paint, varnish, chrome plating and / or salts in solution.
- This product spraying step can take place with or without prior surface treatment.
- plastic part is meant a part comprising predominantly plastic. It can of course integrate other particles and composite materials.
- the method may further comprise one or more of the following features, taken alone or in combination.
- the part has a surface of appearance coated with the sprayed product, and the zone to be protected is a local area of the surface of appearance, devoid of sprayed product.
- the area to be protected is a zone devoid of paint, so as to keep on a piece of appearance a visible part unpainted, for a style effect.
- the part is a part of appearance
- the area to be protected is a fixing area of another piece of motor vehicle, said piece to fix, and the step of removing the temporary masking layer is followed by a step of fixing the workpiece to be fixed on the attachment area of the workpiece.
- piece to fix any piece likely to be assembled with the part of appearance, including any type of functional element.
- the attachment zone is generally disposed on the face opposite to the face which is painted. This is for example a bonding area. It will be understood that the method proposed here is particularly advantageous in the case of attachment of the part by a surface connection at the level of the fastening zone. Indeed in this case, it is advantageous to be able to present an extremely clean surface.
- the piece is fixed by gluing, by applying a layer of glue on the fastening zone.
- the part is fixed by means of an additive printing or 3D printing, by applying a bonding layer produced by printing. Note also that the fixing step of the workpiece to be fixed on the attachment area of the appearance part can take place with or without prior surface treatment.
- the part is fixed by means of an additive printing or 3D printing, by applying a bonding layer deposited by printing.
- the fixing can be done by mechanical anchoring or adhesion of materials.
- the temporary masking layer comprises a hot melt glue.
- a hot melt glue (“hot melt” in English) is an adhesive that becomes fluid under the action of heat and can be easily applied to the liquid state. Once applied, the glue re-solidifies while cooling, adhering to the surface without leaving a gap, and can thus provide a seal to paint and resistance to clashes during handling, to fulfill the protection function of the area to be protected during the product spraying step such as paint.
- this cooled adhesive can be removed quickly and easily from the room due to its residual flexibility and its good cohesion at room temperature, allowing the layer to be removed, preferably in one piece, without breaking down into many pieces.
- Hot melt adhesives generally comprise, as basic constituents, thermoplastic polymers such as polyethylene, polypropylene, polyamide or copolymers of the EVA type, to which tackifying resins and additives are added.
- hot melt glues are liquid from 110 ° C and are cured below 90 ° C.
- An example of a fusible seal is marketed by Henkel under the name "TEROSON CF 438”.
- An old name for this type of glue is "MACROPLAST CF 438”.
- a particularly interesting example of hot melt glue that can be used is a polyamide-type glue, such as that marketed by Henkel under the name "TECHNOMELT PA 2420", or the glue marketed by Henkel under the reference "HENKEL 6208".
- the temporary masking layer comprises a peelable varnish such as that marketed by Zuelch under the reference 826-W1272-00 or by the company
- peelable varnish is composed of a polymer based on PVC (polyvinyl chloride).
- PVC polyvinyl chloride
- Another type of peelable varnish may be similar to solderable masks ("soldermask” in English), known under the name of “blue welding mask”, such as that marketed by Atotech under the reference “SD 2954 ". Such masks can be applied by screen printing.
- the temporary masking layer comprises a hot melt glue.
- the piece is hooked to a hanging swing during the product spraying step and the temporary masking layer is pressed against the swing so as to be held by gluing on the swing. This results in a temporary bonding of the piece against the swing. This ensures a good maintenance of the appearance part during the painting step.
- a masking layer of the zone to be protected and a bonding layer on the swing are advantageously combined.
- the pressure of the appearance part against the swing is performed automatically.
- the temporary masking layer comprises a hot melt glue.
- the temporary masking layer is applied at a temperature above 110 ° C, preferably between 140 ° C and 220 ° C, more preferably between 150 and 200 ° C and the temporary masking layer is removed at a lower temperature. at 90 ° C, preferably between 10 ° C and 40 ° C.
- the step of removing the temporary masking layer is followed by a step of reuse of the material having formed this temporary masking layer.
- a temporary masking layer comprising a non-crosslinked hot melt glue.
- Reuse may include a remelting step at a temperature above 140 ° C in a melter.
- Cleaning of the material to be reused can be provided, for example by filtration of the material according to observed physical properties, such as density, mechanical effect, particle size, etc.
- the temporary masking layer comprises a hot-melt adhesive having a melting temperature Te which is different from, preferably relatively low, with respect to a melting temperature Tp of the sprayed product.
- a hot-melt adhesive having a melting temperature Te which is different from, preferably relatively low, with respect to a melting temperature Tp of the sprayed product.
- Te melting temperature
- Tp melting temperature
- the hot-melt glue is made of polyamide (PA) having a melting temperature Te close to 100 ° C.
- the sprayed product is a polyurethane-type polymer paint having a melting point Tp close to 200 ° C.
- the step of reuse of the temporary masking layer comprises the following steps: the temporary masking layer is recovered after it has been removed, it is ground, it is dried, it is introduced into an extruder at a higher temperature T at the melting temperature of the masking layer and below the melting temperature of the sprayed product, the product is removed by filtration and / or the material is recovered to form a new masking layer.
- an additive for example one or more stabilizers, can be added to the masking layer so that it can be recycled several times. It should be noted that the steps can be fully implemented and in the advertised order, or some may be omitted or replaced by other steps, or the order of implementation may change.
- the solution proposed here allows an operational recycling of the masking layer, while guaranteeing a certain purity, without product residues such as paint residues.
- the step of removing the temporary masking layer is followed by a step of degreasing and / or surface treatment of the area to be protected.
- the surface treatment may be flaming, plasma and / or corona treatment. Degreasing takes place for example using a wipe.
- the deposition of the temporary masking layer is provided by an automatism, such as a six-axis robot, which can be parameterized so as to predefine the width and the thickness of the temporary masking layer.
- an automatism such as a six-axis robot, which can be parameterized so as to predefine the width and the thickness of the temporary masking layer.
- the width is between 10 and 30 mm (millimeters), close to 20 mm, and the thickness is between 1 and 3 mm.
- a step of firing the layer of sprayed product occurs after the step of applying the temporary masking layer on the area to be protected, preferably at a temperature above 80 ° C. This is for example a paint baking step.
- the invention furthermore relates to the use of a method as described above for manufacturing an outer part of a motor vehicle, such as a hatchback skin, a front or rear bumper skin; a front or rear wing; a bay amount; a rocker; a side door; a cap ; a convergent such as a roof spoiler or roof spoiler.
- a motor vehicle such as a hatchback skin, a front or rear bumper skin; a front or rear wing; a bay amount; a rocker; a side door; a cap ; a convergent such as a roof spoiler or roof spoiler.
- the invention also relates to an installation for producing a motor vehicle part comprising plastic, comprising the following devices arranged one after the other on a production line of the part:
- the repacking station of the masking layer temporary comprises an extruder at a temperature T, T being greater than the melting temperature of the masking layer and lower than the melting temperature of the sprayed product, and provided with a filter, for example rotary, to separate the layer of product masking.
- FIG. 1 is a diagrammatic exploded perspective view of a tailgate outer skin made according to an embodiment of the method and assembled on an interior lining of a tailgate,
- FIG. 2 is an internal view of the outer skin of FIG. 1, and
- FIG. 3 is a diagram illustrating a method for producing the outer skin of FIG. 1.
- a motor vehicle part 10 made according to the method presented above may be an outer hatch skin.
- This outer skin 10 is intended to be attached to a hatch liner 12, so as to form a tailgate 14.
- the appearance part 10 has in this example two parts 10a, 10b: a lower outer skin 10a, intended to cover the lower part of the liner 12, and an upper outer skin 10b, intended to cover the upper part of the liner 12.
- the part of appearance 10 is generally made of thermoplastic material injected, for example polypropylene. It has an appearance surface which is painted, visible from the outside of the vehicle, corresponding to the outer surfaces of the skins 10a and 10b, schematically illustrated in FIG. 1.
- the inner surface of the skin 10a, 10b is not intended to be visible once the tailgate assembled and mounted on the motor vehicle. This is a surface which can be described as "technical", in the sense that it is not intended for decoration and can therefore have technical functionalities, in particular means for fixing the appearance part 10 on the hatch liner 12.
- the tailgate liner 12 has the general shape of a frame, having an opening 16 for receiving a rear window. This hatch liner 12 is for example made of reinforced thermosetting material. In this example, the appearance part 10 is fixed on the hatch liner 12 by gluing.
- the part of appearance 10 has two areas to be protected 18a and 18b, namely fixing areas 18a and 18b, respectively disposed on the inner surface of the skins 10a, 10b.
- the fastening zones 18a and 18b are shown in dashed lines in FIG. 2.
- these fixing zones 18a and 18b will be covered with glue tracks, then glued on the liner hatch 12 to ensure permanent attachment of the appearance part 10 on the hatch liner 12.
- the process begins with an injection of material into a mold, so as to mold the body of the part of appearance 10, more precisely to form on the one hand the lower skin 10a, on the other hand the upper skin 10b .
- a temporary masking layer 22a, 22b is applied to the zone to be protected 18a, 18b.
- Step 22 is done automatically, thanks to a robot.
- the layer 22a, 22b is made at the same place as the zone to be protected 18a, 18b. Also, it is shown fictitiously in FIG. 2, although it is not present on the final appearance part 10 shown in FIG.
- the temporary masking layer 22a, 22b comprises, in this example, a hot-melt adhesive as presented above.
- the step 22 for applying the temporary marking layer 22a, 22b is carried out at a temperature greater than 110 ° C., preferably between 140 ° C. and 220 ° C., more precisely between 150 and 200 ° C.
- step 22 is provided by a configurable robot so as to predefine the width and the thickness of the temporary masking layer 22a, 22b.
- the width of the layer 22a, 22b is close to 20 mm and the thickness is between 1 and 3 mm.
- the speed of movement of the robot is here between 50 and 200 mm per second, with an adhesive flow rate of between 20 and 80 rpm (revolutions per minute).
- the application of the layer is implemented by means of an extended nozzle disposed closer to the workpiece, according to a distance of between 2 and 8 mm between the piece and the end of the nozzle.
- the layer can spread over a glue track of a certain length, for example 25 mm, it is possible to vary the viscosity of the glue, depending on the temperature, the type and the reference glue.
- step 22 of applying the temporary masking layer 22a, 22b to the zone to be protected 18a, 18b is followed by a step 24 during which a product, namely paint, is sprayed onto the blank. 'aspect.
- This step 24 is done by spraying paint on the surface of appearance, corresponding to the outer surfaces of the skins 10a and 10b.
- step 24 has a step of baking in an oven lasting between 20 and 30 minutes per piece and is carried out at a temperature in the region of 80 ° C.
- the inner surfaces of the skins 10a and 10b are not directly painted, but indirectly receive paint residues in the form of a veil, because of the paint mist generated by the spray.
- the temporary masking layer 22a, 22b which is sealed at this temperature, probably receives paint droplets instead of the area to be protected 18a, 18b that it covers.
- the appearance part 10a, 10b is attached to a hanging swing and the layer 22a, 22b of temporary masking is pressed against the swing so as to be held by gluing on the swing.
- the product spraying step 24 is followed by a step 26 during which the temporary masking layer 22a, 22b is removed.
- a step 26 during which the temporary masking layer 22a, 22b is removed. For example, lift one end of the layer and pull on it.
- This step of removing the layer 22a, 22b is carried out at a temperature below 90 ° C, preferably between 10 ° C and 40 ° C. At this temperature, the hot-melt adhesive forming the layer 22a, 22b is cooled and flexible and can be removed quickly and easily without fragmenting.
- the step 26 of removing the temporary masking layer is followed by a degreasing step, and possibly a surface treatment of the fixing zone. According to a particularly advantageous embodiment, the step 26 of removing the temporary masking layer is also followed by a step 28 of reuse of the material having formed this temporary masking layer.
- the temporary masking layer comprises a hot melt glue having a melting temperature Te relatively low compared to a melting temperature Tp of the sprayed product.
- the hot-melt glue is polyamide (PA) having a melting temperature Te close to 100 ° C
- the sprayed product is a polyurethane-type polymer paint having a melting temperature Tp close to 200 ° C.
- Step 28 of reuse of the temporary masking layer comprises the following steps: the temporary masking layer is recovered after being removed, ground, dried, introduced into an extruder at a neighboring temperature T 120-130 ° C, therefore higher than the melting temperature Te of the masking layer and lower than the melting temperature of the sprayed product.
- the masking layer melts but not the sprayed product.
- the extrusion end product is then removed by filtration using a coarse rotary filter which separates the masking layer from the product. Then, the material is recovered to form a new masking layer.
- an additive for example stabilizers and / or other additives, can be added to the masking layer so that it can be recycled several times.
- Step 30 is then followed by a step 32 during which the part to be fixed is fixed on the fastening zone of the appearance part, namely in this example a step during which the lining of tailgate 12 on the fastening area 18a, 18b of the appearance part 10.
- the fastening zones 12a, 12b have been shown schematically in FIG. 1.
- the tailgate 14 is obtained, ready to be assembled on the vehicle.
- an installation comprising the following devices arranged one after the other on a production line of part 10:
- the installation preferably includes a station for repackaging the temporary masking layer for reuse.
- this station comprises an extruder at a temperature T, T being greater than the melting temperature of the masking layer and lower than the melting temperature of the sprayed product, and provided with a filter, possibly rotating, to separate the masking layer of the product.
- the filter is preferably coarse, that is to say with filter mesh between 150 and 600 ⁇ (micrometers).
- the part to be produced has a surface of appearance coated with the sprayed product, and the area to be protected is a local area of the surface of appearance, devoid of sprayed product.
- the outer surfaces of the skins 10a and 10b of the appearance part 10 have a local area unpainted, devoid of paint and which is to be protected similarly to the areas to be protected 18a, 18b. It is understood that the method described above applies similarly to such areas to be protected and that the entire description can be read with such an application.
- the method is used to fabricate a hatch skin 10 but many other parts can be made by means of this method, especially a front or rear bumper skin; a front or rear wing; a bay amount; a rocker; a side door; a cap ; a convergent such as a roof spoiler or roof spoiler.
- the temporary masking layer 22a, 22b comprises a peelable varnish in place of the hot melt glue.
- a peelable varnish such as that sold by Zuelch under the reference 826-W1272-00 is used. This varnish is deposited automatically, with a drying time of about two hours at room temperature. The drying time can be reduced by raising the temperature, for example 15 minutes of drying at a temperature of about 140 ° C.
- the fixing of the part of appearance 10 and the part to be fixed 12 is, in the example presented above, by gluing, but other types of attachment are possible, in particular other types of fixing by surface bonding requiring a very clean surface to fix, without residues.
- fastening by mechanical fastening over a relatively large surface, during which a bonding layer made by additive printing or 3D printing is applied to the fastening zone, making it possible to hang the part to be fixed on the part. of appearance 10.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1462959A FR3030314B1 (en) | 2014-12-19 | 2014-12-19 | METHOD FOR PRODUCING AN AUTOMOTIVE VEHICLE APPEARANCE PIECE |
PCT/FR2015/053649 WO2016097654A1 (en) | 2014-12-19 | 2015-12-18 | Method for producing a decorative part of a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3233307A1 true EP3233307A1 (en) | 2017-10-25 |
Family
ID=52627435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15823688.5A Withdrawn EP3233307A1 (en) | 2014-12-19 | 2015-12-18 | Method for producing a decorative part of a motor vehicle |
Country Status (11)
Country | Link |
---|---|
US (1) | US20180036766A1 (en) |
EP (1) | EP3233307A1 (en) |
JP (1) | JP6908527B2 (en) |
KR (1) | KR20170097706A (en) |
CN (1) | CN107107106A (en) |
BR (1) | BR112017012997A2 (en) |
FR (1) | FR3030314B1 (en) |
MA (1) | MA41199A (en) |
MX (1) | MX2017008073A (en) |
RU (1) | RU2703209C2 (en) |
WO (1) | WO2016097654A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2872623T3 (en) * | 2016-10-06 | 2021-11-02 | Exel Ind | Procedure and Installation for Painting a Component Surface with a Pattern |
FR3071420A1 (en) * | 2017-09-26 | 2019-03-29 | Compagnie Plastic Omnium | METHOD OF RECYCLING THE GLUE FOR MAKING A MAROUFLAGE |
FR3073156B1 (en) * | 2017-11-06 | 2019-10-18 | Compagnie Plastic Omnium | LASER TREATMENT OF MAROUFLAGE LIGHTS |
CN107974777A (en) * | 2017-11-22 | 2018-05-01 | 安徽喜洋洋儿童用品有限公司 | One kind is used for local coloring means and its application method in the production of perambulator knapsack |
FR3075666B1 (en) * | 2017-12-21 | 2020-10-02 | Plastic Omnium Cie | PROCESS FOR DEPOSITING A LIQUID THERMAL FUSE ADHESIVE |
WO2019139982A1 (en) * | 2018-01-09 | 2019-07-18 | Magna Exteriors Inc. | Liquid masking |
CN108187985A (en) * | 2018-02-08 | 2018-06-22 | 珠海保税区摩天宇航空发动机维修有限公司 | Fiaring cone barber-pole stripes spraying process before a kind of aircraft engine |
DE102018210215B4 (en) * | 2018-06-22 | 2022-02-03 | Magna Exteriors Gmbh | Process for producing a plastic component, and plastic component and processing system |
DE102018210982A1 (en) * | 2018-07-04 | 2020-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Method for coating a vehicle component |
FR3089849B1 (en) | 2018-12-18 | 2020-12-25 | Plastic Omnium Cie | Process of covering a plastic surface with a permanent coating |
CN109692790A (en) * | 2018-12-20 | 2019-04-30 | 江苏锡佛光电科技有限公司 | It is a kind of for glass hole portion, the fuel injecting method in thickness face and its oil spout jig |
CN114351960B (en) * | 2021-12-20 | 2023-09-22 | 广东博智林机器人有限公司 | Construction method and wall construction system |
DE102022123592A1 (en) | 2022-09-15 | 2024-03-21 | Rehau Automotive Se & Co. Kg | Method for producing a component that is painted at least in sections, component produced thereby and its use |
Citations (1)
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DE102009020264A1 (en) * | 2009-05-07 | 2010-11-18 | Huntsman Advanced Materials (Switzerland) Gmbh | Method for painting a surface of a component |
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US4044177A (en) * | 1976-03-25 | 1977-08-23 | The Standard Products Company | Method of decorating an embossed plastic strip |
JPS606771B2 (en) * | 1976-09-10 | 1985-02-20 | 恵和商工株式会社 | Plate masking method |
US4358482A (en) * | 1981-10-23 | 1982-11-09 | General Motors Corporation | End finishing composite trim strips |
JPS62168570A (en) * | 1986-01-20 | 1987-07-24 | Toyota Motor Corp | Masking coating process |
GB2235421B (en) * | 1989-03-27 | 1993-03-24 | Honda Motor Co Ltd | Method of assembling automotive body and body panels,apparatus for removing and installing body panels |
JPH0422473A (en) * | 1990-05-16 | 1992-01-27 | Sunstar Eng Inc | Masking method |
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JPH08141491A (en) * | 1994-11-18 | 1996-06-04 | Nagoya Yuka Kk | Coating method |
CA2272195A1 (en) * | 1999-05-20 | 2000-11-20 | Peter R. Van Tyle | Paint masking stick and process for applying paint mask |
CZ20033499A3 (en) * | 2001-06-29 | 2004-07-14 | Pro-Tech Beratungs- Und Entwicklungs Gmbh | Covering means used in the manufacture of cars, process for producing and recycling of such covering means and method of covering areas when applying paints |
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2014
- 2014-12-19 FR FR1462959A patent/FR3030314B1/en not_active Expired - Fee Related
-
2015
- 2015-12-17 MA MA041199A patent/MA41199A/en unknown
- 2015-12-18 MX MX2017008073A patent/MX2017008073A/en unknown
- 2015-12-18 US US15/537,613 patent/US20180036766A1/en not_active Abandoned
- 2015-12-18 JP JP2017551370A patent/JP6908527B2/en active Active
- 2015-12-18 KR KR1020177019757A patent/KR20170097706A/en unknown
- 2015-12-18 EP EP15823688.5A patent/EP3233307A1/en not_active Withdrawn
- 2015-12-18 WO PCT/FR2015/053649 patent/WO2016097654A1/en active Application Filing
- 2015-12-18 RU RU2017121036A patent/RU2703209C2/en active
- 2015-12-18 BR BR112017012997-3A patent/BR112017012997A2/en active Search and Examination
- 2015-12-18 CN CN201580073034.6A patent/CN107107106A/en active Pending
Patent Citations (1)
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DE102009020264A1 (en) * | 2009-05-07 | 2010-11-18 | Huntsman Advanced Materials (Switzerland) Gmbh | Method for painting a surface of a component |
Non-Patent Citations (1)
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See also references of WO2016097654A1 * |
Also Published As
Publication number | Publication date |
---|---|
RU2703209C2 (en) | 2019-10-15 |
KR20170097706A (en) | 2017-08-28 |
MA41199A (en) | 2017-10-24 |
MX2017008073A (en) | 2017-12-18 |
JP6908527B2 (en) | 2021-07-28 |
RU2017121036A (en) | 2019-01-23 |
FR3030314B1 (en) | 2019-06-21 |
JP2018504275A (en) | 2018-02-15 |
CN107107106A (en) | 2017-08-29 |
US20180036766A1 (en) | 2018-02-08 |
BR112017012997A2 (en) | 2018-03-06 |
WO2016097654A1 (en) | 2016-06-23 |
FR3030314A1 (en) | 2016-06-24 |
RU2017121036A3 (en) | 2019-03-25 |
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