Catalogue en ligne

Aller sur edunet

Accueil

Nouvelle recherche

Article: texte imprimé

Hybrid moulds with epoxy-based composites – effects of materials and processing on shrinkage and warpage / P. G. Martinho in INTERNATIONAL POLYMER PROCESSING, Vol. XXVI, N° 3 (07/2011)

Pdf

[article]
inINTERNATIONAL POLYMER PROCESSING > Vol. XXVI, N° 3 (07/2011) . - p. 256-264

Titre :	Hybrid moulds with epoxy-based composites – effects of materials and processing on shrinkage and warpage
Type de document :	texte imprimé
Auteurs :	P. G. Martinho, Auteur ; A. Sabino Netto, Auteur ; C. H. Ahrens, Auteur ; G. V. Salmoria, Auteur ; A. S. Pouzada, Auteur
Année de publication :	2011
Article en page(s) :	p. 256-264
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Matériaux -- Déformations géométriques et dimensionnelles Moulage par injection -- Défauts Moules d'injection Polymères amorphes Polymères semi-cristallins Thermocinétique Thermoplastiques -- Moulage par injection
Index. décimale :	668.4 Plastiques, vinyles
Résumé :	This paper contributes with the analysis of the case of a complex three-dimensional shape that was moulded in a standard steel mould and an alternative hybrid mould with steel cavity and epoxy-based composites cores. The mouldings were produced in semicrystalline and amorphous polymers. Pressure and temperature were recorded at two locations in the cavity. The processing conditions were simulated. The effect of the processing was observed on some dimensions of the part that were used for assessment of the shrinkage and warpage. The results suggest the importance of predicting the regime mould temperature when low thermal conductivity materials are used in moulding blocks. Results also evidenced that in hybrid moulds with resin blocks the shrinkage of the mouldings is a consequence of the specific polymer shrinkage and the deformation of the non-metallic core deformed by the processing pressure. The warpage occurring on these parts is also larger in comparison with conventional steel moulds.
DOI :	10.3139/217.2435
En ligne :	https://drive.google.com/file/d/1wXHy38Kn2T_X1NFFNEQuP_WVsgglzKic/view?usp=drive [...]
Format de la ressource électronique :	Pdf
Permalink :	https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12404

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
013159	-	Périodique	Bibliothèque principale	Documentaires	Disponible

A-
A
A+

Accueil

Se connecter

Mot de passe oublié ?

Adresse

ITECH - Bibliothèque

87, chemin des Mouilles
69134 ECULLY cedex

Tél : 04 72 18 07 95

contact