Filling-Balance-Oriented Parameters for Multi-Cavity Molds in Polyvinyl Chloride Injection Molding

Autor:	Hsi-Hsun Tsai, Shao-Jung Wu, Jia-Wei Liu, Sin-He Chen, Jui-Jung Lin
Rok vydání:	2022
Předmět:	filling balance imbalance injection molding PVC molding flow analysis Taguchi method optimization Polymers and Plastics General Chemistry
Zdroj:	Polymers; Volume 14; Issue 17; Pages: 3483
ISSN:	2073-4360
Popis:	PVC injection molding has constrained temperature and shear rate owing to its temperature sensitivity and high viscosity, as well as its low conductivity. Many challenges are associated with the PVC injection molding process used for producing PVC fittings with a multi-cavity mold. Once filling imbalance occurs, the gates and/or runner of the mold should be changed by machine tools, which is time- and cost-intensive. Using Moldex3D and the Taguchi method, this study reveals an approach to eliminate imbalanced filling of multi-cavity molds for PVC injection molding. The injection rate optimization of the filling stage is successfully verified to reduce the imbalance. Furthermore, the temperatures of the molded PVC fittings are only slightly increased by the change in injection rate. The temperatures of fittings in the filling and packing are lower than the degradation temperature of PVC. This approach may help technicians to obtain pilot-run samples for the optimization of molding parameters and ensure degradation-free PVC molding.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a59092b5e748ad2e14cf501921af6013 https://pubmed.ncbi.nlm.nih.gov/36080557 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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