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다수 캐비티 금형에서 엘라스토머 수지의 균형충전도 연구
노병수(B. S. No),한성렬(S. R. Han),한동엽(D. Y. Han),정영득(Y. D. Jeong) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
Almost all injection molds have multi-cavity, which are designed with geometrically balanced runner system in order to made filling balance between cavity to cavity during injection molding. However, filling imbalance has been existed in the geometrically balanced runner system. In this study, we made an experiment and surveyed that are filling balanced variation according to molding condition with thermoplastic vulcanizate (TPV). Also, we conducted experiments in order to know the influence of filling balance for runner core pin (RC pin).
다수캐비티 사출금형에서 엘라스토머 TPV의 충전 불균형
한동엽(Dong Yeop Han),권윤숙(Yun Suk Kwon),노병수(Byeong Su No),정영득(Yeong Deug Jeong) Korean Society for Precision Engineering 2007 한국정밀공학회지 Vol.24 No.2
Recently, the study for filling imbalance in thermoplastic polymer has gradually been increased. However, it is hard to find the researches for filling imbalance of thermoplastic elastomer(TPE). The experiment of filling imbalance was conducted for the three kinds of thermoplastic vulcanizes(TPVs) in the mold with geometrically balanced runner system. In this experiment, the effects of the melt temperature and injection speed on the filling imbalance were investigated. To solve the filling imbalance, Runner Core pin(RC pin) in the experimental mold was adopted and it's effects was tested. In this paper, we present that the insert length of RC pin is dependent to each polymers for optimal filling balance.