| Titre : |
The dynamic die : Wall thickness control of the parison with cylindrical runner and by tilting the die |
| Type de document : |
texte imprimé |
| Auteurs : |
Heinz Gross, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 23-26 |
| Langues : |
Anglais (eng) |
| Catégories : |
Contrôle technique
Epaisseur -- Mesure
Matières plastiques -- Moulage par extrusion-soufflage
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Wall thickness control - Exact wall thickness distribution is the primary goal in the fabrication of extrusion blow molded hollow articles – regardless of whether the same wall thickness is needed everywhere, or different wall thicknesses are required in certain areas. This means that flexibly changing the wall thickness of the parison has to be possible in both the axial direction and circumference direction during the discharge from the die. |
| Note de contenu : |
- Die technology with a conical flow channel geometry
- Die technology with a cylindrical flow channel geometry
- Trifunctional component for dynamically tilting the die
- FIGURES : 1. Partial wall thickness control (PWDS) : Actuators guide a static flexible deformable ring (SFDR) to change the die gap -2. Fabricated windshield washer reservoir using GWDS wall thickness control technology with optimized wall thickness distribution, it weighs 482 g compared to 560 g in conventional production - 3. Unstretched cooled parison from a GWDS wall thickness control die : Notwithstanding the different wall thicknesses (in mm), the parison came out the die sufficiently straight to hit the blowing mandrel - 4. GWDS wall thickness control dies with a diameter of 40 mm integrated into a fourfold head. The cylindrical mandrels shaped at the end have been extended from the die here since the shaping is not needed for this section of the component - 5. Straight parison free of waves with a major wall thickness difference discharged from a GWDS wall thickness control die with an extremely shaped mandrel - 6. weight and thickness distributions of windshield washer reservoir produced with a GWDS wall thickness control die and conventionally |
| En ligne : |
https://drive.google.com/file/d/1haBWYe_bQYuuLdXPtbv87Q9iXd9j4XJz/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28268 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 3 (03/2017) . - p. 23-26
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The dynamic die in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 3 (03/2017)
