教師資料查詢 | 類別: 期刊論文 | 教師: 黃招財 CHAO-TSAI HUANG (瀏覽個人網頁)

標題:The Different Viscosity Arrangement Effects on the Variation of Interface between Skin and Core in Co-injection Molding
學年105
學期2
出版(發表)日期2017/05/09
作品名稱The Different Viscosity Arrangement Effects on the Variation of Interface between Skin and Core in Co-injection Molding
作品名稱(其他語言)
著者Chao-Tsai (CT) Huang*; Cheng-Huang Chen; Kuan-Hao Chen; Gwo-Geng Lin; Chih-Chung Hsu; Rong-Yeu Chang; Shi-Chang Tseng
單位
出版者
著錄名稱、卷期、頁數SPE Technical Papers , Paper No. 151, pp 1-5.
摘要Co-injection molding, one of the multi-component molding methods, is commonly used in our daily life product. However, there are too many combinations of designs and parameters, how to properly control of co-injection is very challenge. Furthermore, co-injection with multi-cavity system is still not fully understood yet. In this study, we have focused on a nonsymmetrical multi-cavity system. First, we tried to find out how the different viscosity arrangement effects on the variation of the interface between skin and core layers in co-injection molding. Specifically, we have assigned three types of material arrangements, say A/A (low viscosity-to-low viscosity), A/B (low viscosity-to-high viscosity), and B/A (high viscosity-to-low viscosity). In A/A system, with a unique skin-to-core ratio and a fixed flow rate, general operation parameters have no significant effect on the change of the interface between skin and core. In A/B system, it generates longer and narrower locus than that of A/A system. It might be due to the higher viscous core material has higher inertia force to push in flow direction. On the other hand, in B/A system, it generates shorter and wider locus than that of A/A system. It might be due to less viscos core material has lower inertia force to push melt in perpendicular to flow direction. Moreover, in the presence of flow rate variation, as flow rate increased, the penetration distance of interface between the skin and core is reduced for A/A system. This reduction phenomenon on the penetration distance of the interface is also observed in A/B and B/A systems. Finally, the experimental study is also performed to verify the numerical predictions on the different viscosity arrangement effects. Specifically, in the presence of flow rate variation, the numerical prediction on the interface between the skin and core is in a good agreement with the experimental data in trend.
關鍵字Co-injection molding , Core penetration, Skin-to-core ratio, Flow imbalance
語言英文(美國)
ISSN
期刊性質國外
收錄於EI;
產學合作
通訊作者Chao-Tsai Huang
審稿制度
國別美國
公開徵稿
出版型式,電子版
相關連結
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