EP4344791A1 - Method for coating components - Google Patents
Method for coating components Download PDFInfo
- Publication number
- EP4344791A1 EP4344791A1 EP23191285.8A EP23191285A EP4344791A1 EP 4344791 A1 EP4344791 A1 EP 4344791A1 EP 23191285 A EP23191285 A EP 23191285A EP 4344791 A1 EP4344791 A1 EP 4344791A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holding device
- painting
- holding
- polymer
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 title description 2
- 239000011248 coating agent Substances 0.000 title 1
- 239000003973 paint Substances 0.000 claims abstract description 37
- 238000007591 painting process Methods 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 238000010422 painting Methods 0.000 claims abstract description 12
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 239000003607 modifier Substances 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000000454 talc Substances 0.000 claims description 4
- 229910052623 talc Inorganic materials 0.000 claims description 4
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 3
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims description 3
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000012994 photoredox catalyst Substances 0.000 claims 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 12
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 9
- 239000008187 granular material Substances 0.000 description 8
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004848 polyfunctional curative Substances 0.000 description 5
- -1 2-hydroxyphenyl Chemical group 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical class OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 description 1
- LHPPDQUVECZQSW-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-ditert-butylphenol Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=CC=CC3=N2)=C1O LHPPDQUVECZQSW-UHFFFAOYSA-N 0.000 description 1
- FJGQBLRYBUAASW-UHFFFAOYSA-N 2-(benzotriazol-2-yl)phenol Chemical class OC1=CC=CC=C1N1N=C2C=CC=CC2=N1 FJGQBLRYBUAASW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- YAAQEISEHDUIFO-UHFFFAOYSA-N C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 Chemical compound C=CC#N.OC(=O)C=CC=CC1=CC=CC=C1 YAAQEISEHDUIFO-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- FTWUXYZHDFCGSV-UHFFFAOYSA-N n,n'-diphenyloxamide Chemical class C=1C=CC=CC=1NC(=O)C(=O)NC1=CC=CC=C1 FTWUXYZHDFCGSV-UHFFFAOYSA-N 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- 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
Definitions
- skids In order to apply paintwork to components, in particular made of plastic for the automotive industry, for example trim components, in particular bumpers, rear spoilers, fenders, etc., these components must be positioned and, if necessary, fixed.
- the corresponding devices for holding the components are also referred to as stacking systems or skids.
- Such skids are in, for example EP 2 520 374 A1 or EP 2 040 854 B1 described.
- the skids are usually mounted on conveyor systems and transported with the components arranged on them through the corresponding painting system. After a defined number of painting cycles (arrangement of the component(s) to be painted on the skid, painting, removal of the component(s) from the skid), which is item-related, the skids are removed from the conveyor system and transported for paint stripping.
- the flame treatment of the components before they are painted is carried out in order to improve the adhesion of the paint to the component surface.
- the flame treatment is usually carried out with an oxidizing flame, which increases the polarity of the component surface.
- the subsequently applied paint which usually also has polar properties, has a better bond to the component.
- the skids are made of metal, for example stainless steel or aluminum.
- Metal skids have the advantage of electrostatic charge capability, but they are heavy. This makes their handling in the paint shop, e.g. transporting them using robots, lifters, etc., difficult.
- the other variant of paint removal is the chemical process, which is particularly suitable for aluminum skids.
- a dipping tank is filled with a chemical into which the skids are inserted. After a defined time, the skids are removed from the cleaning bath and washed off with a steam jet.
- the previously known processes for paint removal are comparatively complex.
- skids made of polymers which offer significant weight advantages over metal versions.
- adhesion of paint to polymer skids is usually so good that they are difficult to clean.
- care must be taken to ensure that they can withstand the high mechanical loads (notched impact strength, impact resistance, flexural rigidity, etc.) of the steam radiation required for cleaning.
- the thermal and chemical loads on the skids in a painting system are also comparatively high (blowing zone for water removal, drying oven, solvent vapor, resistance to primer, base coat, clear coat and possibly alkaline cleaning agents, rinsing water with bactericide, etc.).
- the invention is based on the object of providing a device with the features described above, which is characterized by a low weight and at the same time good cleanability with sufficient resilience.
- the invention is based in particular on the knowledge that the removal of paint overspray from the holding device having a polymeric surface is made significantly easier by avoiding flame exposure of this surface during the flame exposure of the components.
- This can be achieved, for example, by a component being located between the flame treatment device and the holding device during the flame treatment, i.e. the corresponding component, so to speak, shields the holding device from the flame treatment device and/or the flame treatment device is directed away from the holding device.
- covering devices can also be provided which shield the holding device from the flame treatment device and thus prevent the holding device from being exposed to flame. The aim is always to exclude exposure of the holding device to the flame treatment device, otherwise there will be paint overspray adheres significantly better to the holding device in the flame areas, making cleaning more difficult.
- the combination of the polymer PP with the modifier EPDM in the form of a thermoplastic elastomer PP/EPDM has proven to be particularly suitable for the material composition.
- a thermoplastic elastomer PP/EPDM e.g. Finalloy® from Total Petrochemichals
- the additive Tinuvin ® is capable of migration and usually accumulates in the polymer on the surface of the corresponding component approx. 4 - 6 weeks after it has been processed.
- the UV absorber can contain a benzotriazole and/or (eg nanoscale) titanium dioxide and/or iron oxide and/or zinc oxide and/or stearates.
- organic UV absorbers such as 2-(2-hydroxyphenyl)-2H-benzotriazoles (e.g. 2-(2H-benzotriazol-2-yl)-4,6-bis(2-phenyl). -2-propanyl)phenol and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol),(2-hydroxyphenyl)-s-triazines, hydroxybenzophenones or oxalanilides.
- Sterically hindered amines Hindered Amine Light Stabilizers, “HALS” for short
- HALS Hindered Amine Light Stabilizers
- the aforementioned modifiers according to the invention significantly facilitate the removal of paint from the polymeric surface while at the same time ensuring sufficient resilience of the corresponding device when used as intended in a paint shop.
- the polymer is preferably based on polypropylene (PP), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-styrene-acrylate (ASA) or acrylonitrile-butadiene-styrene (ABS).
- PP polypropylene
- PMMA polymethyl methacrylate
- PC polycarbonate
- PE polyethylene
- PVC polyvinyl chloride
- ASA acrylonitrile-styrene-acrylate
- ABS acrylonitrile-butadiene-styrene
- the at least one modifier is added to the polymer in a weight proportion of at least 0.1%, preferably at least 0.2%, based on the total mass of the modified polymer. It is also preferred that the at least one modifier is added to the polymer in a weight proportion of at most 5%. preferably at most 2%, in particular at most 1%, based on the total mass of the modified polymer.
- the support frame can be made of metal, in particular steel or aluminum. This hybrid combination of metal support frame and polymer holding device results in a favorable utilization of the weight-saving properties of the holding device on the one hand with the high mechanical load-bearing capacity of the support frame on the other, which is generally exposed to significantly greater forces than the holding device (e.g. due to the arrangement of a large number of holding devices on it). Electrical lines can be integrated into the support frame in order to electrically contact the at least one polymer holding device. This allows the polymer holding device to be electrostatically charged in order to promote the painting process. The paint is then removed from the holding device in a non-electrostatically charged state.
- the invention further relates to a method for painting components, wherein the components are held during painting by means of one of the devices described above and wherein the device is cleaned after carrying out several painting processes in order to remove paint overspray.
- the cleaning of the device is expediently carried out after at least 20, preferably at least 30, in particular at least 40 painting processes. This achieves a comparatively low frequency of the cleaning process. Furthermore, it has proven advantageous if the cleaning of the device is carried out after a maximum of 80, preferably at most 70, in particular at most 60 painting processes. This prevents the paint from adhering too intensively to the device, in particular to the at least one holding device, which can make the cleaning process more difficult.
- the device in particular the holding device, is preferably cleaned using steam radiation and/or pressurized water irradiation.
- the panels produced in this way were cut into strips measuring 10 cm long x 10 cm wide x 3 mm thick and notches were made in the middle of the upper edge.
- a diamond shape could be constructed.
- This diamond shape was mixed with a typical primer R1472 slate grey from Wörwag Stuttgart with a so-called standard hardener (Waeropur ® hardener 103632) in a mixing ratio of 100:10 (weight of primer to hardener) and applied with a hand gun so that a dry layer thickness of approx. 15 ⁇ m was achieved.
- the material was then dried in a convection oven for 30 minutes at an object temperature of 80°C.
- the primer ensures uniform conductivity of the surface and serves as an adhesion promoter between the plastic surface and the base coat.
- a base coat of black uni from BASF Coatings Weg (alternatively from BASF Gletscher spa, AKZO Manhattangrau or Hyacithrot) was then applied with a hand gun so that a dry film thickness of approx. 12 ⁇ m was achieved.
- the material was then dried in a circulating air oven for 10 minutes at an object temperature of 80°C.
- the clear coat R3209 from Wörwag mixed with a so-called standard hardener in a mixing ratio of 100:35 (weight of clear coat to hardener), was then applied with a hand spray gun so that a dry film thickness of approx. 35 ⁇ m was achieved.
- the material was then dried in a circulating air oven for 45 minutes at an object temperature of 80°C. After drying/curing, the panels were conditioned at 60°C for 48 hours.
- the clear coat provides mechanical and chemical protection and protection against environmental pollution.
- the painted panels of Examples A to D described above were used to simulate paint removal using a conventional steam jet device from K ⁇ RCHER (hot water high-pressure jet HDS 9/17-4 C) irradiated.
- K ⁇ RCHER hot water high-pressure jet HDS 9/17-4 C
- This steamer can increase a water temperature from 12°C up to 155°C. This makes it possible to reduce the working pressure, the time required and the amount of cleaning agents to be used. With a pressure force of 30 to 170 bar, the device is ideal for such development tests.
- the high-pressure cleaner was set to 60°C and with a pressure force of 100 bar in order to simulate a paint stripping process that is common in the production of components in the automotive industry.
- Example polymer Steam jet on painted surface of the diamond See A Atech® 2000 Paint lasts B Atech ® 2000 with 0.2% Tinuvin ® 770 Paint is removed C Atech ® 2000 with 0.4% Tinuvin ® 770 Paint is easier to remove D PP-EPDM Finalloy ® 830-1 Paint is easily removed
- FIG. 1 shows schematically a side view of a device according to the invention, while the Figure 2 a partial view view A in Figure 1 revealed during flame treatment prior to the actual painting.
- a device for holding polymeric external attachments 100 for motor vehicles to be painted with a support frame 1 and several holding devices 2 arranged on the support frame 1, each of which is equipped with holding elements 3 for holding one component 100 during the painting process.
- the painting process also includes preliminary flame treatment of the components 100 in order to improve the adhesion of the paint to the polymeric component surface.
- the holding devices 2 each have a surface made of a polymer which, in order to improve the surface cleaning properties, contains at least one modifier in the form of an erucamide based on rapeseed oil and/or a glycerol monostearate and/or a wax based on a polyolefin, in particular LDPE or PP, or polyester and/or a light stabilizer and/or a UV absorber and/or talc and/or EPDM is added.
- a polymer which, in order to improve the surface cleaning properties, contains at least one modifier in the form of an erucamide based on rapeseed oil and/or a glycerol monostearate and/or a wax based on a polyolefin, in particular LDPE or PP, or polyester and/or a light stabilizer and/or a UV absorber and/or talc and/or EPDM is added.
- the device is cleaned after several painting processes have been carried out to remove paint overspray. Looking at the two figures together, it can be seen that during the painting process, flame exposure of the holding device 2 is at least largely, preferably completely avoided in order to facilitate the removal of paint overspray from the holding device 2 during the cleaning process. Different measures can be provided for this.
- a component 100 can be located between the flame device 300 and the holding device 2 during the flame application, as in Fig 2 This shields the holding device 2 and it is not exposed to flames.
- the flame device 300 can also be directed away from the holding device 2. In this case, too, the holding device is not exposed to flames during the flame application of the components 100 by the flame application device 300.
- cover devices can also be provided which prevent flame application. of the holding device 2 (not shown in detail) and correspondingly ensure shielding of the holding device 2 against the flame from the flame device 300.
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Lackierung von Bauteilen (100), insbesondere polymeren Außenanbauteilen für Kraftfahrzeuge, wobei die Bauteile (100) im Rahmen des Lackierprozesses zunächst beflammt und danach lackiert werden, wobei die Bauteile (100) während des Lackierprozesses mittels einer Vorrichtung gehalten werden, wobei die Vorrichtung aufweist: ein Traggestell (1) und mindestens eine am Traggestell (1) angeordnete Halteeinrichtung (2) mit mindestens einem Halteelement (3) für die Halterung mindestens eines Bauteils (100) während des Lackierprozesses, wobei die Halteeinrichtung (2) eine Oberfläche aus einem Polymer aufweist, wobei die Vorrichtung nach der Durchführung mehrerer Lackierprozesse zwecks Entfernung von Lack-Overspray gereinigt wird, und wobei während das Lackierprozesses eine Beflammung der Halteeinrichtung (2) zumindest weitgehend, insbesondere vollständig vermieden wird, um die Entfernung von Lack-Overspray von der Halteeinrichtung (2) zu erleichtern.The invention relates to a method for painting components (100), in particular polymeric external attachments for motor vehicles, wherein the components (100) are first flame-treated and then painted as part of the painting process, wherein the components (100) are held during the painting process by means of a device, wherein the device comprises: a support frame (1) and at least one holding device (2) arranged on the support frame (1) with at least one holding element (3) for holding at least one component (100) during the painting process, wherein the holding device (2) has a surface made of a polymer, wherein the device is cleaned after carrying out several painting processes in order to remove paint overspray, and wherein flame treatment of the holding device (2) is at least largely, in particular completely, avoided during the painting process in order to facilitate the removal of paint overspray from the holding device (2).
Description
Die Erfindung betrifft ein Verfahren zur Lackierung von Bauteilen, insbesondere polymeren Außenanbauteilen für Kraftfahrzeuge,
- wobei die Bauteile im Rahmen des Lackierprozesses zunächst beflammt und danach lackiert werden, und
- wobei die Bauteile während des Lackierprozesses mittels einer Vorrichtung gehalten werden.
- whereby the components are first flame-treated and then painted as part of the painting process, and
- The components are held by a device during the painting process.
Für den Auftrag von Lackierungen auf Bauteile, insbesondere aus Kunststoff für die Automobil-Industrie, beispielsweise Verkleidungsbauteile, insbesondere Stoßfänger, Heckspoiler, Kotflügel etc. müssen diese Bauteile positioniert und ggf. auch fixiert werden. Die entsprechenden Vorrichtungen zur Halterung der Bauteile werden auch als Stapelsysteme bzw. Skids bezeichnet. Solche Skids sind z.B. in
Gemäß dem Stand der Technik bestehen die Skids aus Metall, z.B. Edelstahl oder Aluminium. Skids aus Metall weisen den Vorteil der elektrostatischen Aufladungsfähigkeit auf, aber sie haben ein hohes Gewicht. Dies macht deren Handhabung in der Lackieranlage, z.B. ihren Transport mittels Robotern, Hebern etc., schwierig. Es gibt im Stand der Technik grundsätzlich zwei verschiedene Methoden, um die Metall-Skids zu entlacken. Zu einem werden die Skids thermisch in einem Verbrennungsofen entlackt. Um den Lack verbrennen zu können, sind im Ofen Temperaturen von ca. 600 - 800°C erforderlich, so dass ein solches Verfahren sehr energieintensiv ist. Nachdem die Skids lackfrei aus dem Ofen herauskommen und nachfolgend abgekühlt werden, erfolgt in der Regel eine Nachreinigung mittels Kugelstrahlen, die mit einem Hochdruckreiniger durchgeführt werden kann. Die andere Variante der Entlackung ist das chemische Verfahren, welches sich insbesondere für Aluminium-Skids eignet. Hierzu wird ein Tauchbecken wird mit einer Chemikalie aufgefüllt, in das die Skids eingeführt werden. Nach einer definierten Zeit werden die Skids aus dem Reinigungsbad herausgenommen und mit einem Dampfstrahler abgewaschen. Insgesamt sind die vorbekannten Verfahren zur Entlackung vergleichsweise aufwändig.According to the state of the art, the skids are made of metal, for example stainless steel or aluminum. Metal skids have the advantage of electrostatic charge capability, but they are heavy. This makes their handling in the paint shop, e.g. transporting them using robots, lifters, etc., difficult. In the prior art there are basically two different methods for removing paint from metal skids. To a The skids are thermally stripped of paint in an incinerator. In order to burn the paint, temperatures of around 600 - 800°C are required in the oven, so such a process is very energy-intensive. After the skids come out of the oven free of paint and are subsequently cooled, they are usually cleaned using shot blasting, which can be carried out with a high-pressure cleaner. The other variant of paint removal is the chemical process, which is particularly suitable for aluminum skids. For this purpose, a dipping tank is filled with a chemical into which the skids are inserted. After a defined time, the skids are removed from the cleaning bath and washed off with a steam jet. Overall, the previously known processes for paint removal are comparatively complex.
Es gibt auch Skids aus Polymeren, welche gegenüber den Metallausführungen deutliche Gewichtsvorteile bringen. Die Haftung von Lack auf polymeren Skids ist jedoch in der Regel so gut, dass sie nur schlecht zu reinigen sind. Außerdem muss bei polymeren Skids darauf geachtet werden, dass sie den hohen mechanischen Belastungen (Kerbschlagzähigkeit, Schlagzähigkeit, Biegesteifigkeit etc.) der für die Reinigung erforderlichen Dampfstrahlung standhalten. Auch die thermische bzw. chemischen Belastung der Skids in einer Lackieranlage ist vergleichsweise hoch (Blaszone zur Wasserentfernung, Trockenofen, Lösungsmitteldampf, Resistenz gegen Grundierungs- Basis-, Klarlack und ggf. alkalische Reinigungsmittel, Spülwasser mit Bakterizid etc.).There are also skids made of polymers, which offer significant weight advantages over metal versions. However, the adhesion of paint to polymer skids is usually so good that they are difficult to clean. In addition, with polymer skids, care must be taken to ensure that they can withstand the high mechanical loads (notched impact strength, impact resistance, flexural rigidity, etc.) of the steam radiation required for cleaning. The thermal and chemical loads on the skids in a painting system are also comparatively high (blowing zone for water removal, drying oven, solvent vapor, resistance to primer, base coat, clear coat and possibly alkaline cleaning agents, rinsing water with bactericide, etc.).
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung mit den eingangs beschriebenen Merkmalen anzugeben, die sich bei ausreichender Belastbarkeit durch ein geringes Gewicht und gleichzeitig eine gute Reinigungsfähigkeit auszeichnet.Against this background, the invention is based on the object of providing a device with the features described above, which is characterized by a low weight and at the same time good cleanability with sufficient resilience.
Erfindungsgemäß wir die Aufgabe gelöst durch ein Verfahren zur Lackierung von Bauteilen insbesondere polymeren Außenanbauteilen für Kraftfahrzeuge, wobei die Bauteile im Rahmen des Lackierprozesses zunächst beflammt und danach lackiert werden, wobei die Bauteile während des Lackierprozesses mittels einer Vorrichtung gehalten werden, wobei die Vorrichtung aufweist:
- ein Traggestell und
- mindestens eine am Traggestell angeordnete Halteeinrichtung mit mindestens einem Halteelement für die Halterung mindestens eines Bauteils während des Lackierprozesses,
- wobei die Halteeinrichtung eine Oberfläche aus einem Polymer aufweist, dem optional zwecks Verbesserung der Oberflächenreinigungseigenschaften mindestens ein Modifikator in Form eines auf Rapsöl basierenden Erucamids (z.B. Armoslip® der Fa. PMC) und/oder eines Glycerol Monostearats (z.B. Armostat® der Fa. AkzoNobel) und/oder einem Wachs basierend auf einem Polyolefin, insbesondere LDPE oder PP, oder Polyester (z.B. Ceralene® der Fa. EuroCeras) und/oder einem Lichtstabilisator und/oder einem UV-Absorber (z.B. Tinuvin® der Fa. BASF) und/oder Talkum und/oder EPDM zugesetzt ist,
- wobei die Vorrichtung nach der Durchführung mehrerer Lackierprozesse zwecks Entfernung von Lack-Overspray gereinigt wird, und
- wobei während das Lackierprozesses eine Beflammung der Halteeinrichtung zumindest weitgehend, insbesondere vollständig vermieden wird, um die Entfernung von Lack-Overspray von der Halteeinrichtung zu erleichtern.
- a support frame and
- at least one holding device arranged on the support frame with at least one holding element for holding at least one component during the painting process,
- wherein the holding device has a surface made of a polymer, which optionally has at least one modifier in the form of a rapeseed oil-based erucamide (e.g. Armoslip® from PMC) and/or a glycerol monostearate (e.g. Armostat® from AkzoNobel) in order to improve the surface cleaning properties. and/or a wax based on a polyolefin, in particular LDPE or PP, or polyester (e.g. Ceralene® from EuroCeras) and/or a light stabilizer and/or a UV absorber (e.g. Tinuvin® from BASF) and/or Talc and/or EPDM is added,
- wherein the device is cleaned after carrying out several painting processes to remove paint overspray, and
- wherein during the painting process, flame exposure of the holding device is at least largely, in particular completely, avoided in order to facilitate the removal of paint overspray from the holding device.
Die Erfindung beruht insbesondere auf der Erkenntnis, dass die Entfernung von Lack-Overspray von der eine polymere Oberfläche aufweisenden Halteeinrichtung dadurch wesentlich erleichtert wird, dass man eine Beflammung dieser Oberfläche während der Beflammung der Bauteile vermeidet. Dies kann beispielsweise dadurch realisiert werden, dass sich ein Bauteil während der Beflammung zwischen Beflammungsvorrichtung und Halteeinrichtung befindet, das entsprechende Bauteil also sozusagen die Halteeinrichtung von der Beflammungsvorrichtung abschirmt und/oder die Beflammungsvorrichtung von der Halteeinrichtung weg gerichtet ist. Ggf. können auch Abdeckvorrichtungen vorgesehen werden, die die Halteeinrichtung von der Beflammungsvorrichtung abschirmen und damit eine Beflammung der Halteeinrichtung verhindern. Ziel ist es stets, eine Beaufschlagung der Halteeinrichtung mit der Beflammungsvorrichtung auszuschließen, da andernfalls Lack-Overspray auf der Halteeinrichtung in den Beflammungsgebieten deutlich besser haftet und hierdurch die Reinigung erschwert wird.The invention is based in particular on the knowledge that the removal of paint overspray from the holding device having a polymeric surface is made significantly easier by avoiding flame exposure of this surface during the flame exposure of the components. This can be achieved, for example, by a component being located between the flame treatment device and the holding device during the flame treatment, i.e. the corresponding component, so to speak, shields the holding device from the flame treatment device and/or the flame treatment device is directed away from the holding device. If necessary, covering devices can also be provided which shield the holding device from the flame treatment device and thus prevent the holding device from being exposed to flame. The aim is always to exclude exposure of the holding device to the flame treatment device, otherwise there will be paint overspray adheres significantly better to the holding device in the flame areas, making cleaning more difficult.
Hinsichtlich des Polymers der Halteeinrichtung an deren Oberfläche hat sich für die Werkstoffzusammensetzung als besonders geeignet herausgestellt u.a. die Kombination des Polymers PP mit dem Modifikator EPDM in Form eines thermoplastischen Elastomers PP/EPDM (z.B. Finalloy® der Fa. Total Petrochemichals). Für andere Polymere, wie beispielsweise ABS, kann es zweckdienlich sein, Additive einzuarbeiten. So ist z.B. das Additiv Tinuvin® migrationsfähig und reichert sich in der Regel ca. 4 - 6 Wochen nach seiner Verarbeitung im Polymer an der Oberfläche des entsprechenden Bauteils an. Grundsätzlich kann der UV-Absorber ein Benzotriazol und/oder (z.B. nanoskaliges) Titandioxid und/oder Eisenoxid und/oder Zinkoxid und/oder Stearate enthalten. Denkbar ist auch der Einsatz von organischen UV-Absorbern, wie z.B. 2-(2-Hydroxyphenyl)-2H-benzotriazole (z. B. 2-(2H-Benzotriazol-2-yl)-4,6-bis(2-phenyl-2-propanyl)phenol und 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-butylphenol),(2-Hydroxyphenyl)-s-triazine, Hydroxybenzophenonen oder Oxalaniliden. Als Lichtstabilisatoren im Sinne der Erfindung können sterisch gehinderte Amine (Hindered Amine Light Stabilizers, kurz "HALS") zum Einsatz kommen. Diese dienen als sog. Radikalfänger und stoppen entsprechend Zerfallsprozesse von chemischen Bindungen, die z.B. durch UV-Bestrahlung entstehen. Überraschenderweise führen die vorgenannten erfindungsgemäßen Modifikatoren zu einer deutlichen Erleichterung der Entlackung der polymeren Oberfläche bei gleichzeitiger Gewährleistung einer ausreichenden Belastbarkeit der entsprechenden Vorrichtung bei deren bestimmungsgemäßen Verwendung in einer Lackieranlage.With regard to the polymer of the holding device on its surface, the combination of the polymer PP with the modifier EPDM in the form of a thermoplastic elastomer PP/EPDM (e.g. Finalloy® from Total Petrochemichals) has proven to be particularly suitable for the material composition. For other polymers, such as ABS, it may be useful to incorporate additives. For example, the additive Tinuvin ® is capable of migration and usually accumulates in the polymer on the surface of the corresponding component approx. 4 - 6 weeks after it has been processed. In principle, the UV absorber can contain a benzotriazole and/or (eg nanoscale) titanium dioxide and/or iron oxide and/or zinc oxide and/or stearates. It is also conceivable to use organic UV absorbers, such as 2-(2-hydroxyphenyl)-2H-benzotriazoles (e.g. 2-(2H-benzotriazol-2-yl)-4,6-bis(2-phenyl). -2-propanyl)phenol and 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol),(2-hydroxyphenyl)-s-triazines, hydroxybenzophenones or oxalanilides. Sterically hindered amines (Hindered Amine Light Stabilizers, “HALS” for short) can be used as light stabilizers within the meaning of the invention. These serve as so-called radical scavengers and accordingly stop the decay processes of chemical bonds, which are caused, for example, by UV radiation. Surprisingly, the aforementioned modifiers according to the invention significantly facilitate the removal of paint from the polymeric surface while at the same time ensuring sufficient resilience of the corresponding device when used as intended in a paint shop.
Zweckmäßigerweise basiert das Polymer auf Polypropylen (PP), Polymethylmethacrylat (PMMA), Polycarbonat (PC), Polyethylen (PE), Polyvinylchlorid (PVC), Acrylnitril-Styrol-Acrylat (ASA) oder Acrylnitril-Butadien-Styrol (ABS). Besonders bevorzugt sind hierbei die unpolaren Polymere PP und PE, da diese aufgrund ihres unpolaren Verhaltens eine geringe Affinität zu den in aller Regel polaren Lackpartikeln aufweisen.The polymer is preferably based on polypropylene (PP), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-styrene-acrylate (ASA) or acrylonitrile-butadiene-styrene (ABS). The non-polar polymers PP and PE are particularly preferred because, due to their non-polar behavior, they have a low affinity for the generally polar paint particles.
Im Rahmen der Erfindung liegt es, dass der mindestens eine Modifikator dem Polymer mit einem Gewichtsanteil von mindestens 0,1 %, vorzugsweise mindestens 0,2 % bezogen auf die Gesamtmasse des modifizierten Polymers zugesetzt ist. Bevorzugt ist ferner, dass der mindestens eine Modifikator dem Polymer mit einem Gewichtsanteil von höchstens 5 %, vorzugsweise höchstens 2 %, insbesondere höchstens 1 % bezogen auf die Gesamtmasse des modifizierten Polymers zugesetzt ist.It is within the scope of the invention that the at least one modifier is added to the polymer in a weight proportion of at least 0.1%, preferably at least 0.2%, based on the total mass of the modified polymer. It is also preferred that the at least one modifier is added to the polymer in a weight proportion of at most 5%. preferably at most 2%, in particular at most 1%, based on the total mass of the modified polymer.
Das Traggestell kann aus Metall, insbesondere Stahl oder Aluminium, bestehen. Bei dieser hybriden Kombination von metallischem Traggestell und polymerer Halteeinrichtung ergibt sich eine günstige Ausnutzung der gewichtssparenden Eigenschaften der Halteeinrichtung einerseits mit der hohen mechanischen Belastbarkeit des Traggestells andererseits, welches in der Regel deutlich größeren Kräften ausgesetzt ist als die Halteeinrichtung (z.B. durch die Anordnung einer Vielzahl von Halteeinrichtungen daran). In das Traggestell können elektrische Leitungen integriert sein, um die mindestens eine polymere Halteeinrichtung elektrisch zu kontaktieren. Hierdurch kann die polymere Halteeinrichtung elektrostatisch aufgeladen werden, um den Lackierprozess zu begünstigen. Die Entlackung der Halteeinrichtung erfolgt dann im nicht elektrostatisch aufgeladenen Zustand.The support frame can be made of metal, in particular steel or aluminum. This hybrid combination of metal support frame and polymer holding device results in a favorable utilization of the weight-saving properties of the holding device on the one hand with the high mechanical load-bearing capacity of the support frame on the other, which is generally exposed to significantly greater forces than the holding device (e.g. due to the arrangement of a large number of holding devices on it). Electrical lines can be integrated into the support frame in order to electrically contact the at least one polymer holding device. This allows the polymer holding device to be electrostatically charged in order to promote the painting process. The paint is then removed from the holding device in a non-electrostatically charged state.
Gegenstand der Erfindung ist ferner ein Verfahren zur Lackierung von Bauteilen, wobei die Bauteile während des Lackierens mittels einer der vorstehend beschriebenen Vorrichtung gehalten werden und wobei die Vorrichtung nach der Durchführung mehrerer Lackierprozesse zwecks Entfernung von Lack-Overspray gereinigt wird.The invention further relates to a method for painting components, wherein the components are held during painting by means of one of the devices described above and wherein the device is cleaned after carrying out several painting processes in order to remove paint overspray.
Zweckmäßigerweise wird die Reinigung der Vorrichtung nach mindestens 20, vorzugsweise mindestens 30, insbesondere mindestens 40 Lackierprozessen durchgeführt. Hierdurch wird eine vergleichsweise niedrige Frequenz des Reinigungsvorgangs erreicht. Ferner hat es sich als vorteilhaft erwiesen, wenn die Reinigung der Vorrichtung nach höchstens 80, vorzugsweise höchstes 70, insbesondere höchstens 60 Lackierprozessen durchgeführt wird. Dadurch wird eine zu intensive Anhaftung des Lackes an der Vorrichtung, insbesondere an der mindestens einen Halteeinrichtung, verhindert, welche den Reinigungsvorgang erschweren kann.The cleaning of the device is expediently carried out after at least 20, preferably at least 30, in particular at least 40 painting processes. This achieves a comparatively low frequency of the cleaning process. Furthermore, it has proven advantageous if the cleaning of the device is carried out after a maximum of 80, preferably at most 70, in particular at most 60 painting processes. This prevents the paint from adhering too intensively to the device, in particular to the at least one holding device, which can make the cleaning process more difficult.
Vorzugsweise erfolgt die Reinigung der Vorrichtung, insbesondere der Halteeinrichtung, mittels Wasserdampfstrahlung und/oder Druckwasserbestrahlung.The device, in particular the holding device, is preferably cleaned using steam radiation and/or pressurized water irradiation.
Nachfolgend werden einige Ausführungsbeispiele gemäß dem Stand der Technik sowie gemäß der Erfindung erläutert:In the following, some embodiments according to the prior art and according to the invention are explained:
Granulat des Acrylnitril/Butadien/Styrols (ABS) ATECH® 2000 der Fa. Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Schweden Arla, wurde zu Platten der Größe 100 cm Länge x 100 cm Breite x 3 mm Dicke gespritzt.Granules of acrylonitrile/butadiene/styrene (ABS) ATECH ® 2000 from Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Sweden Arla, were injected into panels measuring 100 cm long x 100 cm wide x 3 mm thick.
Die so hergestellten Platten wurden in Streifen von 10 cm Länge x 10 cm Breite x 3 mm Dicke geschnitten und jeweils in die Mitte der oberen Kante Kerben eingebracht. Durch Verbinden von derart gekerbten Platten miteinander, konnte eine Raute konstruiert werden. Diese Raute wurde mit einem typischen Primer R1472 schiefergrau der Fa. Wörwag Stuttgart mit einem sogenannten Einheitshärter (Waeropur® Härter 103632) im Mischungsverhältnis von 100:10 (Gewicht Primer zu Härter) gemischt und mit einer Handpistole so aufgetragen, dass eine Trockenschichtdicke von ca. 15 µm erreicht wurde. Dann wurde in einem Umluftofen für 30 min mit einer Objekttemperatur von 80°C getrocknet. Der Primer sorgt für eine gleichmäßige Leitfähigkeit der Oberfläche und dient als Haftvermittler zwischen der Kunststoff-Oberfläche und dem Basislack.The panels produced in this way were cut into strips measuring 10 cm long x 10 cm wide x 3 mm thick and notches were made in the middle of the upper edge. By connecting panels notched in this way together, a diamond shape could be constructed. This diamond shape was mixed with a typical primer R1472 slate grey from Wörwag Stuttgart with a so-called standard hardener (Waeropur ® hardener 103632) in a mixing ratio of 100:10 (weight of primer to hardener) and applied with a hand gun so that a dry layer thickness of approx. 15 µm was achieved. The material was then dried in a convection oven for 30 minutes at an object temperature of 80°C. The primer ensures uniform conductivity of the surface and serves as an adhesion promoter between the plastic surface and the base coat.
Im Anschluss daran wurde ein Basislack schwarz uni der Fa. BASF Coatings Münster (alternativ Fa. BASF Gletscherweiß, Fa. AKZO Manhattangrau oder Hyacithrot) mit einer Handpistole so aufgetragen, dass eine Trockenschichtdicke von ca. 12 µm erreicht wurde. Dann wurde in einem Umluftofen für 10 min mit einer Objekttemperatur von 80°C getrocknet.A base coat of black uni from BASF Coatings Münster (alternatively from BASF Gletscherweiß, AKZO Manhattangrau or Hyacithrot) was then applied with a hand gun so that a dry film thickness of approx. 12 µm was achieved. The material was then dried in a circulating air oven for 10 minutes at an object temperature of 80°C.
Hieran anschließend wurde der Klarlack R3209 der Fa. Wörwag, gemischt mit einem sogenannten Einheitshärter im Mischungsverhältnis von 100:35 (Gewicht Klarlack zu Härter), mit einer Handlackierpistole so aufgetragen, dass eine Trockenschichtdicke von ca. 35 µm erreicht wurde. Dann wurde in einem Umluftofen für 45 min mit einer Objekttemperatur von 80°C getrocknet. Nach der Trocknung/Aushärtung wurden die Platten 48 h bei 60°C konditioniert. Der Klarlack dient dem mechanischen und chemischen Schutz und zum Schutz gegen Umweltbelastungen.The clear coat R3209 from Wörwag, mixed with a so-called standard hardener in a mixing ratio of 100:35 (weight of clear coat to hardener), was then applied with a hand spray gun so that a dry film thickness of approx. 35 µm was achieved. The material was then dried in a circulating air oven for 45 minutes at an object temperature of 80°C. After drying/curing, the panels were conditioned at 60°C for 48 hours. The clear coat provides mechanical and chemical protection and protection against environmental pollution.
Insgesamt wurde also eine klassische Dreischichtlackierung durchgeführt mit Grundierung, Basislack und Klarlack.Overall, a classic three-layer paint job was carried out with primer, base coat and clear coat.
Granulat des ABS ATECH® 2000 der Fa. Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Schweden Arla, wurde mit 0,2 Gew.-% Tinuvin® 770 der BASF SE Ludwigshafen gemischt und in einem Compounder zu Granulat umgeformt. Das so erhaltende Granulat wurde zu Platten der Größe 100 cm Länge x 100 cm Breite x 3 mm Dicke gespritzt.Granules of ABS ATECH ® 2000 from Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Sweden Arla, were mixed with 0.2 wt.% Tinuvin ® 770 from BASF SE Ludwigshafen and formed into granules in a compounder. The granules thus obtained were injected into panels measuring 100 cm long x 100 cm wide x 3 mm thick.
Die nachfolgenden Verfahrensschritte (in Streifen schneiden, Rautenbildung, Schichtauftragung etc.) erfolgten analog zum Vergleichsbeispiel A.The subsequent process steps (cutting into strips, diamond formation, layer application, etc.) were carried out analogously to comparative example A.
Granulat des ABS ATECH® 2000 der Fa. Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Schweden Arla, wurde mit 0,4 Gew.-% Tinuvin® 770 der BASF SE Ludwigshafen gemischt und in einem Compounder zu Granulat umgeformt. Das so erhaltende Granulat wurde zu Platten der Größe 100 cm Länge x 100 cm Breite x 3 mm Dicke gespritzt.Granules of ABS ATECH ® 2000 from Arla Plast AB, BOX 33, Västanävägen, SE 590 30 Borensberg, Sweden Arla, were mixed with 0.4 wt.% Tinuvin ® 770 from BASF SE Ludwigshafen and formed into granules in a compounder. The granules thus obtained were injected into panels measuring 100 cm long x 100 cm wide x 3 mm thick.
Die nachfolgenden Verfahrensschritte (in Streifen schneiden, Rautenbildung, Schichtauftragung etc.) erfolgten analog zum Vergleichsbeispiel A.The subsequent process steps (cutting into strips, diamond formation, layer application, etc.) were carried out analogously to comparative example A.
Granulat des hochsteifen Polypropylens Finalloy® 830-1 der Fa. TOTALENERGIES ONE TECH BELGIUM, Zone Industrielle C - B-7181 Seneffe (Feluy) Belgium, wurde zu Platten der Größe 100 cm Länge x 100 cm Breite x 3 mm Dicke gespritzt.Granules of the highly rigid polypropylene Finalloy ® 830-1 from TOTALENERGIES ONE TECH BELGIUM, Zone Industrielle C - B-7181 Seneffe (Feluy) Belgium, were injected into panels measuring 100 cm long x 100 cm wide x 3 mm thick.
Die nachfolgenden Verfahrensschritte (in Streifen schneiden, Rautenbildung, Schichtauftragung etc.) erfolgten analog zum Vergleichsbeispiel A.The subsequent process steps (cutting into strips, diamond formation, layer application, etc.) were carried out analogously to comparative example A.
Die lackierten Platten der oben beschriebenen Beispiele A bis D wurden zwecks Simulation einer Entlackung mit einem konventionellen Dampfstrahlgerät der Fa. KÄRCHER (Heißwasser-Hochdruckstrahler HDS 9/17-4 C) bestrahlt. Dieser Dampfstrahler kann eine Wassertemperatur von 12°C auf bis zu 155°C erhöhen. Dies ermöglicht eine Reduzierung des Arbeitsdrucks, des Zeiteinsatzes sowie der Menge einzusetzender Reinigungsmittel. Mit einer Druckkraft von 30 bis 170 bar ist das Gerät ideal für derartige Entwicklungsversuche geeignet. Für die ganzen Untersuchungen in diesem Projekt wurde der Hochdruckreiniger auf 60°C und mit einer Druckkraft von 100 bar eingestellt, um einen bei der Herstellung von Bauteilen in der Automobilindustrie üblichen Entlackungsvorgang zu simulieren.The painted panels of Examples A to D described above were used to simulate paint removal using a conventional steam jet device from KÄRCHER (hot water high-pressure jet HDS 9/17-4 C) irradiated. This steamer can increase a water temperature from 12°C up to 155°C. This makes it possible to reduce the working pressure, the time required and the amount of cleaning agents to be used. With a pressure force of 30 to 170 bar, the device is ideal for such development tests. For all of the investigations in this project, the high-pressure cleaner was set to 60°C and with a pressure force of 100 bar in order to simulate a paint stripping process that is common in the production of components in the automotive industry.
Hierbei ergaben sich die folgenden Versuchsergebnisse:
Weiterhin haben sich auch die folgenden Zusammensetzungen hinsichtlich einer Entlackung als günstig herausgestellt:
- Bei der Zusammensetzung E wurden zu dem Substrat ABS ATECH® 2003 0,5 Gew.-% Armoslip® und 0,5 Gew.-% Armostat® hinzugefügt.
- Bei der Zusammensetzung F wurden zu dem Substrat ABS ATECH® 2003 0,5 Gew.-% Armoslip® und 0,2 Gew.-% Ceralene® hinzugefügt.
- Bei der Zusammensetzung G wurden zu dem Substrat ABS ATECH® 2003 0,5 Gew.-% Armoslip® hinzugefügt.
- Bei der Zusammensetzung H wurden zu dem Substrat ABS ATECH® 2003 0,5 Gew.-% Talkum hinzugefügt.
- For composition E, 0.5% by weight of Armoslip® and 0.5% by weight of Armostat® were added to the substrate ABS ATECH® 2003.
- For composition F, 0.5% by weight of Armoslip® and 0.2% by weight of Ceralene® were added to the ABS ATECH® 2003 substrate.
- For composition G, 0.5% by weight of Armoslip® was added to the ABS ATECH® 2003 substrate.
- For composition H, 0.5% by weight of talc was added to the ABS ATECH ® 2003 substrate.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlich erläutert. Die
In
Die Vorrichtung wird nach der Durchführung mehrerer Lackierprozesse zwecks Entfernung von Lack-Overspray gereinigt. Einer gemeinsamen Betrachtung der beiden Figuren ist zu entnehmen, dass während des Lackierprozesses eine Beflammung der Halteeinrichtung 2 zumindest weitgehend, vorzugsweise vollständig vermieden wird, um die Entfernung von Lack-Overspray von der Halteeinrichtung 2 während des Reinigungsvorganges zu erleichtern. Hierfür können unterschiedliche Maßnahmen vorgesehen sein.The device is cleaned after several painting processes have been carried out to remove paint overspray. Looking at the two figures together, it can be seen that during the painting process, flame exposure of the holding
Zum einen kann sich ein Bauteil 100 während der Beflammung zwischen Beflammungsvorrichtung 300 und Halteeinrichtung 2 befinden, so wie in
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022124680.9A DE102022124680A1 (en) | 2022-09-26 | 2022-09-26 | Process for painting components |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4344791A1 true EP4344791A1 (en) | 2024-04-03 |
Family
ID=87575769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23191285.8A Pending EP4344791A1 (en) | 2022-09-26 | 2023-08-14 | Method for coating components |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4344791A1 (en) |
DE (1) | DE102022124680A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1099482A1 (en) * | 1999-11-10 | 2001-05-16 | Claudio Gisep | Component holder for a painting installation, painting installation and coating process |
US20120276283A1 (en) * | 2011-04-29 | 2012-11-01 | Designs Systems Inc. | Article carrier with non-adherence coating |
EP2520374A1 (en) | 2011-05-05 | 2012-11-07 | Asis Gmbh | Method and device for varnishing |
EP2040854B1 (en) | 2006-07-14 | 2013-09-04 | Dürr Systems GmbH | Paint shop and corresponding method of operation |
US20140322539A1 (en) * | 2011-10-31 | 2014-10-30 | Basf Coatings Gmbh | Method For Coating Plastic Substrates |
DE102016124416A1 (en) * | 2015-12-15 | 2017-06-22 | Lisa Dräxlmaier GmbH | PROCESS FOR COATING A PLASTIC COMPONENT WITH A MELT ADHESIVE |
CN207222193U (en) * | 2015-12-18 | 2018-04-13 | 全耐塑料公司 | Supporting member for automotive component japanning |
EP3381568A1 (en) * | 2017-03-28 | 2018-10-03 | Compagnie Plastic Omnium | Device for supporting parts when painting said parts |
CN111793391A (en) * | 2020-06-12 | 2020-10-20 | 上海缔朴水性涂料有限公司 | Anti-adhesion paint and preparation method and application thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3702982A1 (en) | 1987-02-02 | 1988-08-11 | Horn Geb Paul Stephanie | WHEN PAINTING WORKS ARE CARRIED ON A VEHICLE OR A PART OF ITS COVER OR COVER-SHAPED COVER AGENT |
DE102005014033A1 (en) | 2005-03-23 | 2006-09-28 | Basf Ag | surface treatment |
DE102005038608A1 (en) | 2005-08-16 | 2007-02-22 | Basf Ag | Polymer composition for corrosion protection |
-
2022
- 2022-09-26 DE DE102022124680.9A patent/DE102022124680A1/en active Pending
-
2023
- 2023-08-14 EP EP23191285.8A patent/EP4344791A1/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1099482A1 (en) * | 1999-11-10 | 2001-05-16 | Claudio Gisep | Component holder for a painting installation, painting installation and coating process |
EP2040854B1 (en) | 2006-07-14 | 2013-09-04 | Dürr Systems GmbH | Paint shop and corresponding method of operation |
US20120276283A1 (en) * | 2011-04-29 | 2012-11-01 | Designs Systems Inc. | Article carrier with non-adherence coating |
EP2520374A1 (en) | 2011-05-05 | 2012-11-07 | Asis Gmbh | Method and device for varnishing |
US20140322539A1 (en) * | 2011-10-31 | 2014-10-30 | Basf Coatings Gmbh | Method For Coating Plastic Substrates |
DE102016124416A1 (en) * | 2015-12-15 | 2017-06-22 | Lisa Dräxlmaier GmbH | PROCESS FOR COATING A PLASTIC COMPONENT WITH A MELT ADHESIVE |
CN207222193U (en) * | 2015-12-18 | 2018-04-13 | 全耐塑料公司 | Supporting member for automotive component japanning |
EP3381568A1 (en) * | 2017-03-28 | 2018-10-03 | Compagnie Plastic Omnium | Device for supporting parts when painting said parts |
CN111793391A (en) * | 2020-06-12 | 2020-10-20 | 上海缔朴水性涂料有限公司 | Anti-adhesion paint and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
DE102022124680A1 (en) | 2024-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19755421A1 (en) | Rubber-metal composite | |
DE3702982C2 (en) | ||
EP4344791A1 (en) | Method for coating components | |
EP4331730A1 (en) | Device for holding components to be painted | |
EP2467512A2 (en) | Aluminium or aluminium alloy formed part and/or structural part and method for protecting the surface thereof | |
EP2178987A2 (en) | Process for protecting vehicle body components, chassis components, engine components or exhaust systems from corrosion | |
DE10246236B3 (en) | Bellows tunnel for connecting sections of articulated bus, railway coaches or for passenger access to aircraft has anti-adhesion coating on its surfaces made from fluorine-containing or other polymer | |
EP2890821B1 (en) | Method and production facility for producing a hot-formed or press-hardened shaped sheet metal part with a metallic corrosion protection coating, shaped sheet metal part produced therewith and motor vehicle body with such shaped sheet metal part | |
DE3613274C2 (en) | ||
DE102012205933A1 (en) | A method of painting a workpiece with the inclusion of a paint-contributing primer layer | |
DE2853445A1 (en) | COMPOSITION FOR TREATING A FOAM SUBSTRATE WITH CLOSED CELLS | |
DE69426257T2 (en) | Process for improving the appearance of an object coated with a lacquer and device for carrying out this process | |
DE60213060T2 (en) | Process for making and applying a protective coating composition, and articles coated therewith | |
DE60214478T2 (en) | Method of painting body parts | |
DE102019128159A1 (en) | Process for producing a reversible coating | |
DE102012014107A1 (en) | Coating method for upper surfaces of motor vehicle components, particularly vehicle-wheels, involves subjecting upper surface of top-self cleaning coating layer partially to surface treatment with plasma | |
DE102013109359A1 (en) | Method for cleaning objects | |
DE10242177A1 (en) | Coating a lacquered surface, e.g. for applying scratch-resistant coating to car body part, includes initial corona discharge treatment | |
DE69317745T2 (en) | Process for the production of outer vehicle parts by punching with pre-coated metal sheets | |
WO2019120758A1 (en) | Method for producing a plastic component, plastic component, and machining system | |
DE102018210215B4 (en) | Process for producing a plastic component, and plastic component and processing system | |
EP3786070B1 (en) | Method for fire qualifying air vehicle cabin replacement components | |
DE3715928C1 (en) | Process for producing a temporary and easily detachable protective layer on metal sheets which are to be machined, and application of the process | |
DE3226989A1 (en) | METHOD AND DEVICE FOR APPLYING VARNISHES | |
DE102021132227A1 (en) | Method for applying a masking layer in-situ to an injection molded plastic part |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20241001 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |