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Reliable measurements of textured surfaces / Andor Bariska in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 13, N° 2 (2020)
[article]
Titre : Reliable measurements of textured surfaces Type de document : texte imprimé Auteurs : Andor Bariska, Auteur ; Florian Pick, Auteur Année de publication : 2020 Article en page(s) : p. 40-41 Langues : Anglais (eng) Catégories : Epaisseur -- Mesure
Mesure -- Instruments
Mesures optiquesIndex. décimale : 681.2 Instruments d'essai et de mesure Résumé : Until now it has only been possible to mesure the thickness of coatings at the edges of perforated metal baking sheets. As a result, the layer of coating around the perforations is sometimes too thick and this in turn can cause cracks to form. For the firsttime, a non-contact measurement process is available which allows the coating thickness in the area of the holes to be measured quickly, non-destructively and with high precision.
Note de contenu : - Costly and time-consuming contact measurements
- High standards for the production of commercial bakeware
- A comparison of three measurement processes
- Thermal coatingtest in less than one second
- Identify process deviations quickly
- Fig. 1 : The perforations in the aluminium baking tins guarantee continuous ventilation and keep energy consumption to a minimum
- Fig. 2 : Sample panel with perforated and non-perforated areas and bonded coating thickness disc
- Fig. 3 : The non-contact measurements and themicroscope measurements correspond in the perforated and non-perforated areas (R2 = 0.99)
- Fig. 4 : n-contact process is idealPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34483
in INTERNATIONAL SURFACE TECHNOLOGY (IST) > Vol. 13, N° 2 (2020) . - p. 40-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21863 - Périodique Bibliothèque principale Documentaires Disponible Residual wall thickness study of variable crosssection tube in water-assisted injection molding / J. G. Yang in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 5 (11/2012)
[article]
Titre : Residual wall thickness study of variable crosssection tube in water-assisted injection molding Type de document : texte imprimé Auteurs : J. G. Yang, Auteur ; X. H. Zhou, Auteur ; Q. Niu, Auteur Année de publication : 2012 Article en page(s) : p. 584-590 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epaisseur -- Mesure
Fluides, Dynamique des
Matières plastiques
Matières plastiques -- Moulage par injection assistée par eau
Reynolds, Contrainte deDans la dynamique des fluides, la tension de Reynolds (oun contrainte de Reynolds) est le tenseur des contraintes dans un fluide issu de l'opération moyenne sur les équations de Navier-Stokes pour tenir compte des turbulences et des fluctuations d'un fluide dynamique.
TubesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Residual wall thickness is an important measure of the quality of water-assisted injection molding (WAIM) parts. Based on the traditional injection molding model, Reynolds stress was introduced into the WAIM model for the turbulent characteristics of high pressure water. In addition, residual wall thickness was computed by a computational fluid dynamics (CFD) method, and the results matched well with experimental data. The results show that the hollowed core ratio changes from small to large in the first half of water penetration, while in the latter half it is just the opposite. Difference of the residual wall thickness is larger at the large-diameter position of a part than other position. Residual wall thickness is mainly affected by water injection pressure, delay time, melt temperature, mold temperature and amount of short shot, in which the amount of short shot is the most obvious. Note de contenu : - MODEL AND METHODS : Physical model - Governing equations - Boundary conditions - Solution procedure
- RESULTS AND DISCUSSION : Water penetration behavior - Comparison of simulations and experiments - Effects of processing parameters on hollowed core ratioDOI : 10.3139/217.2612 En ligne : https://drive.google.com/file/d/1sMfahW9U3FA3PwpVweL9qHcER-HmwoA1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16641
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Code-barres Cote Support Localisation Section Disponibilité 14335 - Périodique Bibliothèque principale Documentaires Disponible Robotic painting : mimicking human applicators / Karan Bansal in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 4 (07/2023)
[article]
Titre : Robotic painting : mimicking human applicators Type de document : texte imprimé Auteurs : Karan Bansal, Auteur ; Yayun Du, Auteur ; Eric Palan, Auteur ; Mohiuddin Quadir, Auteur ; Mohammad Khalid Jawed, Auteur Année de publication : 2023 Article en page(s) : p. 1369-1361 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Couleur
Dureté (matériaux)
Epaisseur -- Mesure
Formulation (Génie chimique)
Peinture au rouleau
Résistance au chocs
Robotique collaborativeIndex. décimale : 667.9 Revêtements et enduits Résumé : Robotically assisted painting is widely used for spray and dip applications. However, use of robots for coating substrates using a roller applicator has not been systematically investigated. We showed for the first time, a generic robot arm-supported approach to painting engineering substrates using a roller with a constant force at an accurate joint step, while retaining compliance and thus safety. We optimized the robot design such that it is able to coat the substrate using a roller with a performance equivalent to that of a human applicator. To achieve this, we optimized the force, frequency of adjustment, and position control parameters of robotic design. A framework for autonomous coating is available at https://github.com/duyayun/Vision-and-force-control-automonous-painting-with-rollers; users are only required to provide the boundary coordinates of surfaces to be coated. We found that robotically- and human-painted panels showed similar trends in dry film thickness, coating hardness, flexibility, impact resistance, and microscopic properties. Color profile analysis of the coated panels showed non-significant difference in color scheme and is acceptable for architectural paints. Overall, this work shows the potential of robot-assisted coating strategy using roller applicator. This could be a viable option for hazardous area coating, high-altitude architectural paints, germs sanitization, and accelerated household applications. Note de contenu : - THEORETICAL BACKGROUND :
- Automatic path planning
- Passive force control using position feedback on the end-effector
Materials
- Coatings preparation and testing of coating properties
- Color scheme
- Organoleptic evaluation of coated panels was evaluated
- RESULTS AND DISCUSSIONS :
- Dry film thickness
- Pendulum hardness
- Impact resistance
- Conical mandrel bent test
- Color difference due to difference in painting method
- Table 1 : Summary of methods and formulations
- Table 2 : Color coordinates of the hand and robo-painted coatingsDOI : https://doi.org/10.1007/s11998-022-00750-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00750-7.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39722
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Code-barres Cote Support Localisation Section Disponibilité 24153 - Périodique Bibliothèque principale Documentaires Disponible Siloxane coating with epoxy modification : optimization of adhesion to improve steel corrosion protection / M. Barletta in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
[article]
Titre : Siloxane coating with epoxy modification : optimization of adhesion to improve steel corrosion protection Type de document : texte imprimé Auteurs : M. Barletta, Auteur ; P. Moretti, Auteur ; E. Pizzi, Auteur ; F. Trovalusci, Auteur Année de publication : 2022 Article en page(s) : p. 839-849 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Anticorrosifs
Anticorrosion
Caractérisation
Epaisseur -- Mesure
Epoxydes
Matériaux hybrides
Métaux -- Revêtements protecteurs
Procédés de fabrication
Revêtements organiques
Rugosité
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).Index. décimale : 667.9 Revêtements et enduits Résumé : This study focuses on the possibility of using siloxane resins with epoxy modification to delay corrosion of metal substrates for hydraulic applications. Formulations aimed at metal protection were designed, without including anticorrosive additives, and deposited on 11SMnPb37 steel. Thin monolayer films were obtained by dip coating in different process conditions, avoiding primers. The developed procedure was simple and able to provide solid and well-anchored coatings. They were characterized in terms of morphology, scratch and wear endurance, and resistance to a corrosive environment. The optimum formulation and deposition parameters were found. The selected coating showed remarkable adhesion to the substrate, good mechanical properties, and resistance in a saline environment, proving to be suitable as a protective barrier against corrosion. The protective effect was ensured not by additives but through the excellent adhesion of the coating and its endurance to scratch and wear. Note de contenu : - Materials and manufacturing process
- Characterization procedure
- Table 1 : Coatings developed in the experiments
- Table 2 : Mean thickness values of the coatings obtained in various conditions according to Table 1 (alkaline pretreatment of the support or absence, resin concentration, extraction speed)
- Table 3 : Measured roughness (Ra and Rz) of uncoated sample and selected coatings, AC3S10, AC3S100, C3S10, and C3S100DOI : https://doi.org/10.1007/s11998-021-00594-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00594-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38079
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible Simpler solution complex coating came / Peter Ho in PROTECTIVE COATINGS EUROPE (PCE), Vol. 5, N° 2 (04-05-06/2013)
[article]
Titre : Simpler solution complex coating came Type de document : texte imprimé Auteurs : Peter Ho, Auteur Année de publication : 2013 Article en page(s) : p. 29-31 Langues : Anglais (eng) Catégories : Analyse des données
Couches minces
Epaisseur -- Mesure
Logiciels
Mesure -- Instruments
Qualité -- Contrôle
Revêtements -- Analyse:Peinture -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : Much has been written about the increase in coating thickness measurement requirements. The amount of required measurements is increasing dramatically and the administrative burden associated with evaluating the data has the potential to be overwhelming. Here we look at how technological advances allow for a much more streamlined approach to the reporting of inspections. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18799
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Code-barres Cote Support Localisation Section Disponibilité 15088 - Périodique Bibliothèque principale Documentaires Disponible Simulated thickness distribution / Christian Hopmann in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 10 (10/2014)
PermalinkSpatially resolved monitoring of adhesive application / Burkhard Plinke in ADHESION - ADHESIVES + SEALANTS, N° 4/2010 (2010)
PermalinkSynthesis of multi-site polyether amine triazine derivative for sustainable leather manufacturing / Xinju Jia in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 4 (04/2022)
PermalinkThe devil is in the detail / Mike Garside in PROTECTIVE COATINGS EUROPE (PCE), Vol. 5, N° 2 (04-05-06/2013)
PermalinkPermalinkThe effect of caustic soda solutions on fusion-bonded epoxy coatings at high temperatures / Hassan Al-Sagour in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 9 (09-10/2018)
PermalinkThe effect of surface preparation grades of weld seams on coating performance / Sang-Moon Shin in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 7 (07/2018)
PermalinkThe effects of processing parameters on the residual wall thickness distribution at the sharp angle corner of water assisted injection molded parts / T. Pudpong in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 5 (11/2013)
PermalinkThe impact of milling on leather properties and fatliquor distribution / Richard L. Edmonds in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
PermalinkThe influence of melt and process parameters on the quality and occurrence of part defects in water-assisted injection molded tubes / Sofie Sannen in INTERNATIONAL POLYMER PROCESSING, Vol. XXVI, N° 5 (11/2011)
PermalinkThe sky is falling ! Or is it paint chips ? / Richard A. Burgess in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 34, N° 10 (10/2017)
PermalinkThree-dimensional under the surface / Niels König in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 5 (05/2013)
PermalinkTôles prélaquées - Méthodes d'essai. Partie 1 : Epaisseur du revêtement - Norme EN 13523-1 / Comité Européen de Normalisation / Bruxelles : Comité Européen de Normalisation (2009)
PermalinkPermalinkTransparent and temperature-resistant up to 100 °C / Daniel Ganz in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 9 (2021)
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