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KUNSTSTOFFE INTERNATIONAL . Vol. 108, N° 5Mention de date : 05/2018Paru le : 18/05/2018 |
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Titre : Illuminating idea : Fraunhofer ICT processes conductive material in additive manufacturing Type de document : texte imprimé Auteurs : Bettina Keck, Auteur Année de publication : 2018 Article en page(s) : p. 15-17 Langues : Anglais (eng) Catégories : Conducteurs organiques
Diodes électroluminescentes
Electronique -- Matériaux
Equipements électroniques ou électriques (EEE)
Impression tridimensionnelle
Matières plastiques dans les équipements électriques et électroniques
Nanotubes
Polycarbonates
Terpolymère acrylonitrile butadiène styrèneIndex. décimale : 668.4 Plastiques, vinyles Résumé : The Fraunhofer ICT has been involved with additive manufacturing since the 1990s. At the Fakuma 2017, the scientists amazed the trade visitors with glowing USB sticks made from functionalized PC/ABS. For this purpose, they had made the plastic conductive with the aid of carbon nanotubes and processed the composite using Arburg Plastic Freeforming. Note de contenu : - Conducting paths and housing are produced in an additive process
- Material freedom signifies increasing complexity
- Fig. 1 : Carbon nanotubes are responsible for the illumination of "light sticks". The Fraunhofer ICT compounds the electrically conductive material itself and then processes it by the APF process using the Freeformer
- Fig. 2 : First, the black functionalized material with inserted LED, then the white ABS housing, is applied onto a build platform by an additive process
- Fig. 3 : In the processing with the Freeformer, the process parameters can be freely adapted to the material
- Fig. 4 : Using the same principle, the Fraunhofer ICT has also realized capacitive sensors, which transmit signals sensitive to, e.g., contact or proximityEn ligne : https://drive.google.com/file/d/1p1nCs2PtGRYZ3-QxnpDJoC5S1Phbf7r2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30595
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 15-17[article]Réservation
Réserver ce documentRediscovered component of hybrid parts / Marius Fedler in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Rediscovered component of hybrid parts : Leaktight overmolding with thermosets for high-performance applications Type de document : texte imprimé Auteurs : Marius Fedler, Auteur Année de publication : 2018 Article en page(s) : p. 18-21 Langues : Anglais (eng) Catégories : Equipements électroniques ou électriques (EEE)
Matières plastiques -- Moulage par injection
Matières plastiques -- Surmoulage
Matières plastiques dans les équipements électriques et électroniques
ThermodurcissablesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Technical thermoplastic materials have high thermal stability and outstanding electrical insulation properties, which is why they are already widely used in electrical applications. Where thermoplastics reach the limits of their performance, thermosets can offer an interesting alternative. The much debated disadvantage of the brittle fracture behavior can be avoided by skillfully joining them with thermoplastics in a 2-component part. Note de contenu : - Overmolding with thermoplastic materials in electrical applications
- New ideas about the use of thermosets
- Thermoset hybrid parts with metals and thermoplastics
- Fig. 1 : Exterior dimensions and schematic view of an overmolded sensor. The comparison between BMC, EP and PBT shows the higher shrinkage values for thermoplastics compared to thermosets, resulting in higher loading of the inserts
- Fig. 2 : Trials with electronic modules : The conductor plate (dark green) was completely overmolded with plastic (translucent) to allow the performance to be definitively tested
- Fig. 3 : The interface between PPS and BMC shows an almost uniform profile, which is reflected in a very good bond strength of the joint parts
- Fig. 4 : Micrograph of a BMC thermoset (bulk molding compound, light) on a thermoplastic polyamide at the fracture point of a tensile bar,produce by the transfer process
- Fig. 5 : 2-component hybrid component with thermolastic insert and thermoset overmolding produced with the "DuroVerbund II" project for the definitive testing of bond strength and leak-tightness
- Fig. 6 : Bond strengths between a polyamide preform and the final overmolding with a phenolic resin, based on the strength of the phenolic resin solid bar in percentEn ligne : https://drive.google.com/file/d/1hiRYq1nhDGKrc3CNK8hx-CFN5I_QynXg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30596
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 18-21[article]Réservation
Réserver ce documentProtects against fire risk, protects the environments / Thomas Auinger in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Protects against fire risk, protects the environments : New compounds offer eco-friendly flame retardancy at a competitive cost structure Type de document : texte imprimé Auteurs : Thomas Auinger, Auteur ; Robert Lielacher, Auteur Année de publication : 2018 Article en page(s) : p. 22-25 Langues : Anglais (eng) Catégories : Consommateurs -- Protection
Environnement -- Protection
Equipements électroniques ou électriques (EEE)
Ignifugeants -- Suppression ou remplacement
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Incendies -- Prévention
Matières plastiques -- Additifs
Matières plastiques dans les équipements électriques
Matières plastiques dans les équipements électriques et électroniques
Protection passive contre l'incendiela protection passive contre l’incendie dans les bâtiments est essentiellement préventive. Elle représente l’ensemble des mesures constructives permettant à un ouvrage ou une partie d’ouvrage de résister à un incendie pendant un temps prédéterminé fixé par la réglementation de construction en vigueur pour le type de bâtiment concerné. Ces mesures sont destinées à : stopper la progression des fumées, éviter la propagation des flammes, maintenir la stabilité au feu des éléments de structure le plus longtemps possible malgré l’action d’un incendie, contenir les effets thermiques le plus longtemps possible à la zone sinistrée.
La principale spécificité de la protection passive est que dès le début d’un incendie, elle fonctionne sans aucune intervention humaine ni aucun apport extérieur d’énergie.
C’est une protection durable, l’efficacité de la plupart des produits utilisés dans la protection passive n’étant pas limitée dans le temps.
Les principaux moyens de la protection passive sont : Pour les structures, le flocage, l’encoffrement, les peintures ou enduits intumescents… Pour le compartimentage, les parois, les portes coupe-feu, les calfeutrements coupe-feu de pénétration de câbles et de tuyaux, les cheminements techniques protégés...Index. décimale : 668.4 Plastiques, vinyles Résumé : Many plastic applications are subject to stringent fire safety requirements – not only in the electrical and electronics industries, but also in the construction, aviation and automotive sectors. Alongside the material properties of compounds, environmental factors play an increasingly important role in the eyes of many processors. An Austrian company is now offering an environmentally friendly series of halogen- and phosphorus-free flame-retardant compounds based on polyolefin copolymers. Note de contenu : - Safety and environmentally friendliness
- Application-oriented development
- Use-oriented development objectives
- Fig. 1 : the sequence of images shows the fire spread and fire behaviour of a Temanit compound
- Fig. 2 : Comparison of Temanit with various unreinforced halogenated (H) and halogen-free phosphorus-containing (P) flame-retardant polymer matrix systems based on UL94 V-0 with a thickness of 3 mm
- Fig. 3 : The property profile of the new compounds will be further developed and optimized to enable use in public transport
- Fig. 4 : Evaluation of various parameters (UL 94 V, HDT, elastic modulus, environment, GWIT, costs processing) of Temanit in comparison to other halogen-free phosphorus-containing (P) flame-retardant plastic systems
- Table : The processing properties of the individual compound types have been optimized for a number of applicationsEn ligne : https://drive.google.com/file/d/15Zpc29V1Zi-bJrZHUPAmebnJL77ASPju/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30597
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 22-25[article]Réservation
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Titre : Power lies in the water : Fluid-assisted injection molding and its simulation : the combination for improved efficiency Type de document : texte imprimé Auteurs : Cristoph Hinse, Auteur ; Nuno Ribeiro Simões, Auteur ; Stefan Hofmann, Auteur ; Christian Hopmann, Auteur ; Matthias Theunissen, Auteur Année de publication : 2018 Article en page(s) : p. 26-29 Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection assisté par gaz
Matières plastiques -- Moulage par injection assistée par eau
Matières plastiques -- Refroidissement
Simulation par ordinateur
Température -- ContrôleIndex. décimale : 668.4 Plastiques, vinyles Résumé : Short product lifecycles and high demands on injection molded parts require efficient product development methods. Besides new process management strategies, simulation is an important component at an early stage of product and mold development. This article validates the simulation of the water-assisted injection molding technique, compares two fluid-assisted injection molding techniques (FAIM) and presents a typical practical application. Note de contenu : - Residual wall thickness as quality feature
- Validation of the simulation with a comparison of the cooling efficiency of WAIM vs GAIM
- Practical decision-making aid : which process is suitable ?
- Simulating the grip for the thermomix
- Fig. 1 : Simulation of the media line with water bubble and distribution of the measurement positions and measurement points of the residual wall thicknesses over the cross-section
- Fig. 2 : Comparison between reality and simulation with the aid of the redidual wall thicknesses (T, L, B, R), eccentricity (E) and the area ratio of the displaced molten core (A) for MP2 and MP 3, indicating the 3δ range
- Fig. 3 : Numerical comparison of the cooling efficiency of WAIM and GAIM indicating the sensor position on the media line for the measurement
- Fig. 4 : Because of its digital capabilities, the Thermomix has become known as the 'iPhone from Wuppertal"
- Fig. 5 : Movable moldhalf (AS), stationary mold half (DS) with slide elements show open
- Fig. 6 : Overview of the simulation model with temperature-control system, cold runner, cavity and overspill cavity. Simulating the grip for the mixing bowl of the Thermomix, showing the water bubble in the part overspill cavityEn ligne : https://drive.google.com/file/d/1AESrj4NnIvwaScDcPOFwCkj1OUSJhMOa/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30598
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 26-29[article]Réservation
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Titre : All a question of strategy : Heyco and Synventive : applied problem solving in hot runner technology Type de document : texte imprimé Auteurs : Norbert Delle, Auteur Année de publication : 2018 Article en page(s) : p. 30-32 Langues : Anglais (eng) Catégories : Canaux chauffants
Matières plastiques -- Moulage par injection
Matières plastiques dans les automobilesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Heyco-Werk Süd is the pulse generator for the plastics processing of the entire group of companies. This is where the threads for the development and production of technical plastic parts come together. The automotive supplier sees itself well positioned not only with its own product portfolio, but also with the choice of strategic partners. How this works is demonstrated by the example of a component for the BMW X2. Note de contenu : - Strategic partnerships instead of huge follow-up costs
- Surface problems despite cascade with 2 x 7 drop valve gate system
- Active and controlled melt flow in the cavity
- For-reaching policy decision
- Fig. : In this tool, the 148 cm long cowl for the BMW x2 is manufactured by cascade injection molding
- Fig. 1 : Never again without flow front control
- Fig. 2 : The 740 g heavy cowl for the BMW x2 is manufactured as a 2-component part made of PP and TPE-S. It is important to control surface quality and distortion
- Fig. 3 : The hot runner system for the cowl of the BMW x2 contains seven needle valve nozzles each for the hard and soft components
- Fig. 4 : Synflow technology allows the flow front velocity of the melt to be controlled via a reduced opening speed of the valve needleEn ligne : https://drive.google.com/file/d/1ZJj5W3f0CAIeduVVlWshO_yM_pisDMwX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30599
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 30-32[article]Réservation
Réserver ce documentLarge waste reduction thanks to direct gating / Horst-Werner Bremmer in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Large waste reduction thanks to direct gating : Needle valve technology saves energy and improves efficiency Type de document : texte imprimé Auteurs : Horst-Werner Bremmer, Auteur Année de publication : 2018 Article en page(s) : p. 33-34 Langues : Anglais (eng) Catégories : Canaux chauffants
Coût -- Contrôle
Déchets -- Réduction
Economies d'énergie
Matières plastiques -- Moulage par injection
Valve à aiguille (technologie)Index. décimale : 668.4 Plastiques, vinyles Résumé : A practical example from switch and plug outlet production shows the benefits that can be gained by using a hot runner system with needle-valve technology. In this case, the partner of the Belgian manufacturer Niko was Günther Heisskanaltechnik. Note de contenu : - Modification to full hot runner helps to save energy
- faster production and color change
- Fig. 1 : From the tunnel gate to hot runner direct gating : through the reduction of the sprue waste and energy consumption, manufacturing costs for plug outlets can be clearly reduced
- Fig. 2 : Producing plug outlet covers means large quantities of articles
- Fig. 3 : The production of the plug outlet covers is converted to an 8-cavity injection mold with electrically operated hot runner valve systemEn ligne : https://drive.google.com/file/d/1I_JlZ2T2PUNlGIeu5WNQsXjzgTwKkUfR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30600
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 33-34[article]Réservation
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Titre : A fertile area : Pure gearbox technology for extrusion Type de document : texte imprimé Année de publication : 2018 Article en page(s) : p. 35-38 Langues : Anglais (eng) Catégories : Automatisation
Boites à vitesse
Lasers -- Applications industrielles
Logiciels
Logistique (organisation)
Matières plastiques -- Extrusion
Mesure
Production
Production en série
Qualité -- Contrôle
Robots industrielsIndex. décimale : 668.4 Plastiques, vinyles Résumé : In a region of Italy known better for fruit and vegetable cultivation, a machine manufacturer is currently expanding vigorously. To learn about its recipe for success, we made an appointment to visit it. Note de contenu : - Two production sites
- More automation, more technical staff
- Growing technical requirements
- Extrusion technology - Nothing else
- Fig. 1 : High production depth : to ensure high quality gearboxes, the gearbox manufacturer produces virtually all the components in-house starting from steel (in the background)
- Fig. 2 : Use of robots : Zambello is continually looking for ways to automate individual steps, despite the wide range of products
- Fig. 3 : Quality control : after the gearbox blocks have had 24 hour's time in the measurement room to reach thermal equilibrium, they are measured three-dimensionally
- Fig. 4 : 66 at one go : This recently installed system processes gearbox housings fed on pallets with a selection of up to 1000 tools and subsequently cleans them fully automatically to remove processing residues
- Fig. 5 : The heard of series production : In factory 2 in Lendinara, production is oriented to filling the fully automated high-bay warehouse with up to 15000 different parts, so that production can start immediatly when orders are received. For this, the components are managed by the software with the aid of a self-learning positioning logic, which places frequently used components closer to the exit
- Fig. 6. Laser measurement : Deviations during manufacturing can be measured with the aid of specially developed 3D laser measurement with micrometer accuracy
- Fig. 7 : Gearbox variety : Different applications such as electricity cable insulation, blown film production and pipe extrusion require different designs of gearbox because of construction differences in the extruderEn ligne : https://drive.google.com/file/d/1MAq2l8HHxxgB3_Xxa10-DzCV2V_EzXfh/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30601
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 35-38[article]Réservation
Réserver ce documentCompounding systems with variable kneading flights / Wolfgang Walter in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Compounding systems with variable kneading flights : Further development of buss kneader technology opens up new application fields Type de document : texte imprimé Auteurs : Wolfgang Walter, Auteur ; Max Guntern, Auteur Année de publication : 2018 Article en page(s) : p. 39-43 Langues : Anglais (eng) Catégories : Chlorure de polyvinyle
Compoundage
Granulateurs
Malaxeurs et mélangeurs
Matières plastiques -- ExtrusionIndex. décimale : 668.4 Plastiques, vinyles Résumé : Due to their modularity, the new Buss compounding systems can be configured specifically to meet the needs of the user and are suitable for processing a wide range of products. Flexible configuration of the process section with kneading flights opens up new compounding possibilities. Note de contenu : - Machine concept of the new series
- Development of buss kneader technology
- Improved raw materials feed
- Further developments in the process zone
- Novel discharge concept
- Control interface with industry 4.0 compliance
- Fig. 1 : Compeo pilot plant, consisting (from left to right) of discharge unit, side feeder, Buss Kneader with feed hopper and control panel
- Fig. 2 : The process geometry can be optimized by the specific arrangement of different screw elements for the respective compounding application
- Fig. 3 : The 120° opening angle of the process section cover greatly facilitates maintenance work and adjustments to the screw geometry. The intake opening is marked with an arrow
- Fig. 4 : The twin-screw side feeder with ventilation enables high filler fractions input
- Fig. 5 : Screw geometry detail: new melting elements, e. g., for cable applications, replace the restriction ring in the compounder housing
- Fig. 6 : Compared to predecessor models, the Compeo series offers a much larger process window, here, e. g., for PVC compounding
- Fig. 7 : The twin-screw discharge unit of the Compeo series is used for all compounding applications
- Fig. 8 : Start screen : the system controller shows the most important process parameters even when idleEn ligne : https://drive.google.com/file/d/1j7mnbZ3bL2VOKAs47kJHsWqxavHlue-n/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30602
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 39-43[article]Réservation
Réserver ce documentRecycling of long carbon fibers / Larisa Ausheyks in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Recycling of long carbon fibers : Development of a bindered LrCF tape with high fiber orientation Type de document : texte imprimé Auteurs : Larisa Ausheyks, Auteur ; Stephan Baz, Auteur ; Albrecht Dinkelmann, Auteur ; Hermann Finckh, Auteur ; Götz T. Gresser, Auteur ; Jörg Hehl, Auteur ; Olaf Reichert, Auteur ; Oliver Rimmel, Auteur ; Tim Schmidt, Auteur ; David May, Auteur ; Peter Mitschang, Auteur ; Artur Poeppel, Auteur Année de publication : 2018 Article en page(s) : p. 44-48 Langues : Anglais (eng) Catégories : Bandes composites
Distribution et orientation des fibres
Essais dynamiques
Fibres de carbone
Fibres longues
Liants
Matériaux -- Imprégnation
PréformesObjet constituant la majeur partie d’une pièce à fabriquer et qui nécessite un travail supplémentaire pour devenir une pièce finie. Ce terme s’utilise notamment pour le moulage, l’usinage, la taille d’outils en silex, la fabrication de fibre optique…
Produits et matériaux recyclés
Traction (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : To optimally exploit the properties of recyclate fibers for structural applications, a bindered rCF tape with high fiber orientation and high intrinsic stability is produced from relatively long recycled carbon fibers (rCF). It permits the automated manufacturing of load-optimized preforms for liquid-composite molding processes. Note de contenu : - Carbon fibers from pyrolysis
- LrCF processing
- From the sliver to the semi-finished product for tape laying
- Impregnating with the polymer matrix
- Comparison with new fibers
- Fig. 1 : Division of the process steps between the project partners
- Fig. 2 : Quality of the fiber tapes : before stretching in the drafting system, a highly oriented sliver and non-disintegrated fiber packs
- Fig. 3 : Measurement of the fiber orientation : the sliver and the fiber orientation measured with a polarization camera after carding and the stretched tape. 90° corresponds to the tape longitudinal direction
- Fig. 4 : Bindering system : Schematic diagram an dphoto
- Fig. 5 : Rodformer for packaging the sliver with the mesh. Folding the mesh without carbon fibers and folding step with carbon fibers
- Fig. 6 : Setup for preconsolidation, heating and post-consolidation
- Fig. 7 : Tape layup of an LrCF preform on the tape laying robot
- Fig. 8 : Micro-sections shows good overall impregnation quality with clearly visible accumulations of fiber strands and variations of the fiber orientation
- Fig. 9 : Results of the tensile test according to 150 527-4: Comparison with theoretical tensile properties of the new fibers and commercially available random-laid mat materialEn ligne : https://drive.google.com/file/d/1a1ZJKT9fQzOEYxsCkO9RJyS3hf4H0Uha/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30603
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 44-48[article]Réservation
Réserver ce documentWaste-free production / Patrick Steinwendner in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Waste-free production : Polymer build-up through polycondensation in the liquid phase of PET Type de document : texte imprimé Auteurs : Patrick Steinwendner, Auteur Année de publication : 2018 Article en page(s) : p. 49-50 Langues : Anglais (eng) Catégories : Déchets industriels -- Recyclage
Films plastiques
Gaspillage -- Lutte contre
Matières plastiques -- Déchets
Matières plastiques -- Recyclage
Polycondensation à l'état liquide
Polyéthylène téréphtalate
Recyclage (déchets, etc.)
RhéologieIndex. décimale : 668.4 Plastiques, vinyles Résumé : Various waste materials are produced in blow and flat sheet film manufacturing. This includes film residues, scrapped rolls, trimmings and purgings. Stamping grids and scrap parts are also generated in case of subsequent thermoform production. The zero scrap production concept of NGR is intended to return all waste material to the manufacturing process. Note de contenu : - Production concept for manufacturing PET deep drawing film
- Course of the intrinsic viscosity
- Fig. 1 : Recycling plant : The P:React extends the polymer chains through polycondensation in the liquid phase, producing a product of high quality
- Fig; 2 : Intrinsic viscosity change : IV value a) of the feed material, b) after extrusion, c) at the end of the melt tube entering the vacuum container, and d) at sequential positions in the melt reactorEn ligne : https://drive.google.com/file/d/1XvNx2GmQRd_U4xo-hObL2cHv4RJbxRDV/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30604
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 49-50[article]Réservation
Réserver ce documentOptically and haptically effective chrome surfaces / Felix A. Heinzler in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 5 (05/2018)
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Titre : Optically and haptically effective chrome surfaces : Laser treatment for defined brushed chrome structures Type de document : texte imprimé Auteurs : Felix A. Heinzler, Auteur ; Markus Dahlhaus, Auteur ; Ullrich Gutgar, Auteur Année de publication : 2018 Article en page(s) : p. 51-53 Langues : Anglais (eng) Catégories : Chrome
Dépôt électrolytique
Lasers -- Applications industrielles
Matières plastiques -- Métallisation
Optique
Surfaces (technologie)
ToucherIndex. décimale : 668.4 Plastiques, vinyles Résumé : Combining attractive optics with the effect of metal haptics gives plastics surfaces an upgrade. However, finely brushed structures often disappear when the parts are subsequently electroplated or damage their surface. This can be avoided by mold and laser structuring of the blank and its chromium layer. Note de contenu : - electroplated plastics as decor elements
- Surface structures of refined components
- A new process for brushed structures
- Laser structuring enables optical effect
- Achievements and requirements
- Process potential
- Figure : A chromium plated surface with and without brushed, fine haptic structuring, built with the new decor process of BIA
- Fig. 1 : Various chrome surfaces in comparison : classic gloss chrome, modern matt chrome surface and "texture chrome", a special BIA development
- Fig. 2 : The new process gives the chrome layer both the look and the feel of a brushed surface. It creates a high-quality overall impression and enables a selective distinction to unstructured areas
- 3. Schematic layer composition of an in-mold structured plastic component. Up to 60% of the fine graining originally applied in the mold is leveled off by the layers. The main segment consists of the approx. 25µm thick copper layer and the subsequent nickel layer
4. Microscopic image (magnified 10000 times) of a cut through the layer compositionof a brushed surface subsequent to electroplating. All layers are uniformly intact and not damaged by subsequent laser treatmentEn ligne : https://drive.google.com/file/d/14lc7jqVSzdjX6HUcClzlC2YV3r-iCUJH/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30605
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 5 (05/2018) . - p. 51-53[article]Réservation
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