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A Proposed Technique to Improve the Filling of the Mold Cavity by Polymer During Injection Molding

Identifieur interne : 000E73 ( Main/Exploration ); précédent : 000E72; suivant : 000E74

A Proposed Technique to Improve the Filling of the Mold Cavity by Polymer During Injection Molding

Auteurs : Hamdy Hassan [France] ; Nicolas Regnier [France] ; Jean-Marie George [France] ; Guy Defaye [France] ; Eric Arquis [France]

Source :

Mots-clés :

Abstract

In this study, a technique is proposed to improve the filling process of the injection molding and minimize the solidification during the filling to achieve a complete filling of the mold cavity. Two methods are proposed: stopping the flow rate of the cooling fluid or passing cooling fluid inside the cooling channels at higher temperature during a period of the injection molding cycle. The configuration studied consists of the mold with cuboids-shape cavity having two different thicknesses. A validation of the numerical model used by an experimental work is presented. The results show that, stopping of cooling fluid on a period of injection cycle has not great effect on the improvement of injection cycle. The results indicate that passing coolant fluid at higher temperature during the ejection stage decreases the solidification of the polymer during the filling stage by about 40%.


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Le document en format XML

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<div type="abstract" xml:lang="en">In this study, a technique is proposed to improve the filling process of the injection molding and minimize the solidification during the filling to achieve a complete filling of the mold cavity. Two methods are proposed: stopping the flow rate of the cooling fluid or passing cooling fluid inside the cooling channels at higher temperature during a period of the injection molding cycle. The configuration studied consists of the mold with cuboids-shape cavity having two different thicknesses. A validation of the numerical model used by an experimental work is presented. The results show that, stopping of cooling fluid on a period of injection cycle has not great effect on the improvement of injection cycle. The results indicate that passing coolant fluid at higher temperature during the ejection stage decreases the solidification of the polymer during the filling stage by about 40%.</div>
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