Tダイキャスト成形の実験解析

抄録

In order to obtain the relationship between the theoretically analyzed results previously reported and experimental ones, melt behaviors upon T-die extrusion were experimentally obtained by varying resins and extrusion conditions.
As a result of the experiment, power-law index n was calculated by comparison of the theoretical results with the experimental ones. Applying the n-values and the resins theological data, melt behaviors between the die exit and the chill roll came to be able to be predicted, and it was found that LDPE having long chain branches was easily deformed near the die exit as compared with other resins. By comparison of the theoretical results with the experimental ones in various process conditions, a good agreement was obtained in the melt behaviors. The scale-up rule presented theoretically in the preceding report was successfully supported in an experimental way.