| Titre : |
Screws for large shot weights : Barrier screw from KraussMaffei shortens the cycle time and improves the melt homogeneity |
| Type de document : |
texte imprimé |
| Auteurs : |
Thomas Hungerkamp, Auteur ; Klaus Zeiler, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 30-32 |
| Langues : |
Anglais (eng) |
| Catégories : |
Matières plastiques -- Moulage par injection
Temps de cycle (production) -- Réduction
Vis barrière
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
When it comes to injection molding applications with large-volume moldings such as bottle crates, pallet boxes or containers, the plasticizing system has a crucial influence on the productivity. Only when plasticizing is performed quickly and effectively can short cycle times and high product quality be combined. Applications with large shot weights, in particular, allow barrier screws to demonstrate their advantages compared with conventional screws. |
| Note de contenu : |
- Measures to increase output
- Barrier screws on the advance
- Identification of the optimum screw geometry
- Benefits for the processor
- FIGURES : 1. During the production of large-volume injection moldings such as pallets and pallet boxes, the shot weight is often in excess of 10 kg - 2. Principle design of the barrier - 3. Calculated melting profile with an unfavorable screw design : the conveying capacity of the screw is higher than is melting capacity - 4. Calculated melting profild with a favorable screw design : The proportion of molten material reaches 100% even before the end of the barrier zone |
| En ligne : |
https://drive.google.com/file/d/1tsTJZVjfcJzWhmnBwoGcfMJ5fQFASzds/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28478 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 4 (04/2017) . - p. 30-32
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