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This paper develops a 3-D numerical simulation model for the epoxy casting process including the filling and curing stages. A lot of factors are considered in the model, such as the resin flow, heat transfer, curing reaction, viscosity variation and gravity. The CCD is used to record the flow front advancement during the filling course through a glass window, and some thermocouples are applied to...
Sequential-valve-injection, an important plastic injection molding method, displays a great potential of controlling and eliminating the weld line. In this paper, the effects of technological parameters of sequential-valve-injection molding on weld line position control are researched. The result shows that both the opening time of valve gate and the injection time bring a greater influence on the...
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