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Water penetration behavior in water-assisted injection molding (WAIM) : A study of product quality for different process and material parameters / Sofie Sannen in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 5 (11/2012)
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Titre : Water penetration behavior in water-assisted injection molding (WAIM) : A study of product quality for different process and material parameters Type de document : texte imprimé Auteurs : Sofie Sannen, Auteur ; M. de Munck, Auteur ; Peter Van Puyvelde, Auteur ; J. de Keyzer, Auteur Année de publication : 2012 Article en page(s) : p. 602-616 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Matières plastiques -- Moulage par injection
Matières plastiques -- Moulage par injection assistée par eau
Moulage par injection -- Défauts
PolypropylèneTags : 'Moulage injection assisté eau' Polypropylène 'Comportement pénétration 'Epaisseur paroi résiduelle' 'Formation défaut pièce' 'Mesure pression 'Débit volume' Viscosité 'Fluidité cisaillement' Index. décimale : 668.4 Plastiques, vinyles Résumé : This study investigates the relation between water penetration behavior and product quality in water-assisted injection molding (WAIM) for different process and material parameters. The principle mechanisms responsible for both building up the residual wall thickness (RWT) and formation of part defects as well as the influence of these process and material parameters on the RWT and occurrence of part defects could be revealed. This is done by relating the measurements of water pressure and water volume flow rate, visualizing in-mold variations during water injection, to both the part weight and a visual inspection of part cross-sections, for different process settings and materials. It was found that the RWT as well as the formation of part defects depend on the polymer resistance, since the variation of the latter leads to a change in both the water bubble width and velocity. On the one hand, the resistance is determined by the process parameters having an influence on the amount of melt ahead of the water bubble, depending on injector opening time, water volume flow rate and water injection delay time. On the other hand, the resistance also depends on the friction between the polymer chains, which is determined by the zero-shear viscosity and the shear thinning behavior of the polymer. In addition, the occurrence of part defects is directly related to the polymer crystallization behavior. The resulting product quality therefore depends on a combination of the process parameters and the applied material. Note de contenu : - EXPERIMENTAL : Material ans set-up - Methodology
- RESULTS AND DISCUSSION : Injector opening time - Influence of material parametersDOI : 10.3139/217.2622 En ligne : https://drive.google.com/file/d/1QMi2LZqb5pZ-u5u4ggioD88OQUFJCeov/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16643
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVII, N° 5 (11/2012) . - p. 602-616[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14335 - Périodique Bibliothèque principale Documentaires Disponible Water pump with improved long-term performance / Gerhard Auer in KUNSTSTOFFE PLAST EUROPE, Vol. 93, N° 8/2003 (08/2003)
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Titre : Water pump with improved long-term performance Type de document : texte imprimé Auteurs : Gerhard Auer, Auteur Année de publication : 2003 Article en page(s) : p. 51-52 Langues : Anglais (eng) Index. décimale : 668.4 Plastiques, vinyles Résumé : CAD/FEA integration - To model engineering components from phenolic resin, Vyncolit uses an FE analysis system. The development of a new water pump for a car engine is used as an example to demonstrate the potential of this thermoset to cut costs, reduce weight and increase the efficiency of a component previously produced from metal. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7157
in KUNSTSTOFFE PLAST EUROPE > Vol. 93, N° 8/2003 (08/2003) . - p. 51-52[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011077 - Périodique Bibliothèque principale Documentaires Disponible Wave impact resistance of racing yacht composites / Peter Davies in JEC COMPOSITES MAGAZINE, N° 59 (08-09/2010)
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Titre : Wave impact resistance of racing yacht composites Type de document : texte imprimé Auteurs : Peter Davies, Auteur ; Dominique Choqueuse, Auteur ; Benoît Bigourdan, Auteur ; Hervé Devaux, Auteur ; Steven Robert, Auteur Année de publication : 2010 Article en page(s) : p. 28-29 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Yacht course' Conception 'Impact vagues' 'Tests résistance' 'Matériaux composites' comparatifs' 'Modélisation numérique' 'Structure sandwich' Index. décimale : 668.4 Plastiques, vinyles Résumé : Repeated wave impact is a critical loading condition for racing yacht design. A test that was initially used to compare materials has been further developed to provide quantitative results and input for numerical modelling. Note de contenu : - Test development
- Test programmes
- Numerical modelling
- Future workEn ligne : http://www.jeccomposites.com/news/composites-news/wave-impact-resistance-racing- [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13783
in JEC COMPOSITES MAGAZINE > N° 59 (08-09/2010) . - p. 28-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012405 - Périodique Bibliothèque principale Documentaires Disponible Wave movement ensures material supply in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 2 (02/2013)
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Titre : Wave movement ensures material supply Type de document : texte imprimé Année de publication : 2013 Article en page(s) : p. 52-53 Langues : Anglais (eng) Catégories : Automatisation
Manutention -- Appareils et matériel
Médecine -- Appareils et matérielIndex. décimale : 668.4 Plastiques, vinyles Résumé : Automation - Supplying material from an octabin or big bag often requires the use of additional personnel to empty the container completely. A new type of unloading station ensures complete emptying without manual intervention and has been designed specifically to meet the production requirements for medical devices. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18085
in KUNSTSTOFFE INTERNATIONAL > Vol. 103, N° 2 (02/2013) . - p. 52-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14715 - Périodique Bibliothèque principale Documentaires Disponible Ways, goals and conflicts / Dorothea Wessel in KUNSTSTOFFE PLAST EUROPE, Vol. 93, N° 3/2003 (03/2003)
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Titre : Ways, goals and conflicts Type de document : texte imprimé Auteurs : Dorothea Wessel, Auteur Année de publication : 2003 Article en page(s) : p. 5-6 Langues : Anglais (eng) Index. décimale : 668.4 Plastiques, vinyles Résumé : Waste policy - More than 120 experts from industry, politics and government authorities met in Bonn in January at a plastics industry symposium entitled “The Recycling of Plastics from Technical Applications” to discuss problems and solutions connected with European product guidelines. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7231
in KUNSTSTOFFE PLAST EUROPE > Vol. 93, N° 3/2003 (03/2003) . - p. 5-6[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011072 - Périodique Bibliothèque principale Documentaires Disponible "We are constantly developing new products" / Andrew E. Brink in JEC COMPOSITES MAGAZINE, N° 95 (03/2015)
Permalink"We have to think more and more about multi-material systems" / Michael Effing in JEC COMPOSITES MAGAZINE, N° 123 (08-09/2018)
PermalinkWear outcomes of three models of disc prostheses with two bearing materials metal-on-metal and metal-on-polyethylene / Moussa Amadji in MATERIAUX & TECHNIQUES, Vol. 111, N° 4 (2023)
PermalinkWear performance of value-addition epoxy/breadfruit seed shell ash particles and functionalized momordica angustisepala fiber hybrid composites / Vincent C. Ezechukwu in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 5-6 (12/2020)
PermalinkWear protection for ring non-return valves / Christian Gornik in KUNSTSTOFFE INTERNATIONAL, Vol. 98, N° 9/2008 (09/2008)
PermalinkWear protection on twin screws / Hans-Peter Schneider in KUNSTSTOFFE INTERNATIONAL, Vol. 103, N° 4 (04/2013)
PermalinkWear testing on plastics processing machines / Roy T. Fox in KUNSTSTOFFE PLAST EUROPE, Vol. 94, N° 3/2004 (03/2004)
PermalinkPermalinkWeft knitting for composite aircraft parts / Laurent van de Casteele in JEC COMPOSITES MAGAZINE, N° 24 (04/2006)
PermalinkWeighing without time overhead / Deborah Lidauer in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 10 (10/2019)
PermalinkWeight and cost reduction with double-doble laminates / Stephen W. Tsai in JEC COMPOSITES MAGAZINE, N° 137 (11-12/2020)
PermalinkWeight reduction with composites / Karl-Heinz Kalmbach in JEC COMPOSITES MAGAZINE, N° 45 (11-12/2008)
PermalinkA welcome extension of service life / F. Stephan Auch in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 4 (04/2011)
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