Titre : |
Manufacturing quality parts faster : The rubber injection molding machine manufacturer LWB Steinl is staging a sporty comparison between two injection molding concepts |
Type de document : |
texte imprimé |
Auteurs : |
Reinhard Bauer, Auteur |
Année de publication : |
2017 |
Article en page(s) : |
p. 36-39 |
Langues : |
Anglais (eng) |
Catégories : |
Elastomères -- Moulage par injection Ethylène-propylène-diène monomère
|
Tags : |
'EFE injection' Elastomères 'Moulage par |
Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
Despite the proven superiority of high-tech rubber injection molding machine models, robust lean-tech alternatives still have a large body of support, even though the available methods for increasing rubber plastication performance have already been successfully used for over ten years. This is demonstrated with a practical report at the North-German rubber and silicone processor Präzisa in Ratekau near Lübeck. |
Note de contenu : |
- The EFE system has become a reliable standard
- Theory confirmed in practice, additional advantages found
- ACC raises EFE to the next level of efficiency
- Optimum quality through a process control system
- Considerable productivity gains possible
- FIGURES : 2. Thin-wall-moldings with long flow paths, such as the component for a respiration device made from EPDM rubber depicted here, can be produced with the EFE system with less pressure and a correspondingly lower clamping force, and moreover even faster - 3. Block diagram of the MIMO (Multi-Input/Multi-Output) control : Theoutput of the controller is the throttle setting. At the same time the measured temperature behind the throttle is monitored and, when a limit value is exceeded, is reduced by a controller intervention - 4. Detailed view of the specifically created constriction (throttle) in the connection channel between the pasticizing unit and the piston injection unit. The right part visualizes the heat generation in the squeezing area of the flow channel and the subsequent distribution in the material stream - 5. Temperature distribution from a flow simulation in the injection unit with a throttle position with 80% closure of the flow cross section for the flow rate 40 cm3/s |
En ligne : |
https://drive.google.com/file/d/1tN9UhhJcz86KaJa7IQuJKAuKmroq8ka8/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28480 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 4 (04/2017) . - p. 36-39