| Titre : |
The soft component first : Günther hot runner system for two-component application offers space even in tight conditions |
| Type de document : |
texte imprimé |
| Auteurs : |
Horst-Werner Bremmer, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 40-42 |
| Langues : |
Anglais (eng) |
| Catégories : |
Canaux chauffants
Elastomères thermoplastiques
Matières plastiques -- Moulage par injection multicomposant
Matières plastiques bi-composant
Moules d'injection
Polypropylène
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Low assembly effort, often shorter production times and lower-cost parts production overall are the reasons why 2-component injection molding is often used in hard-soft material combinations, including in the production of seals, cable bushings and handles. If the core-back process is to be used for production, however, mold structure and hot runner system design will pose a challenge. |
| Note de contenu : |
- Advantage 2-component - when it is done properly
- Bottleneck between the two components
- Two materials - one manifold block
- Core-back combined with ejector function
- Hot runner and mold expertise required
- Fig. 1 : The various cable bushinsgs with the TPE/PP material combination were injected in a family mold
- Fig. 2 : The cable bushing has to fulfil a comprehensive property profile, which has an obvious effect on product design and therefore also on the mold design
- Fig. 3 : Themold was designed as a family mold. The unusual order also posed a challenge, since "soft" (TPE) had to be injected before "hard" (PP)
- Fig. 4 : In order to achieve a flat height on the "hot half", both manifold systems were housed in a manifold block
- Fig. 5 : The front-mounted nozzles present the advantage that they have a closed sealing ring at the nozzle head. This design creates a barrier between the manifold and the nozzle cabling and thus offer the highest level of safety when it comes to the seal in the system |
| En ligne : |
https://drive.google.com/file/d/1-jRl1Va__gLvHZ03aGODnzKz1LfcisDi/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32141 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 3 (03/2019) . - p. 40-42
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The soft component first in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 3 (03/2019)
