A transparent barrel system has been developed to assist in the understanding of polymer behavior in a reciprocating screw injection molding machine. This system allows the dynamic status of the polymer inside the injection barrel to be conveniently visualized though photography and video recording, and the corresponding material conditions can be measured via a computerized data acquisition system. effects of ddifferent processing conditions on the melting behavior are analyzed. This system can not only assist in the understanding of the process but also can be used to quantitatively verify the modeling and optimization of injection molding system.
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