Design & Manufacturing
- Volume 2 Issue 4
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- Pages.5-10
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- 2008
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- 2800-0323(pISSN)
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- 2733-452X(eISSN)
Filling imbalance of elastomer TPVs in injection mold with unary branch type runner system
편측 분기형 러너시스템을 가진 사출금형에서 엘라스토머 TPV의 충전 불균형
- Han, Yeop-Dong (Pukyung national university) ;
- Park, Tae-Won (Tea sung precision) ;
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Jeong, Yeong-Deug
(pukyung national university)
- Received : 2008.04.28
- Accepted : 2008.06.26
- Published : 2008.08.01
Abstract
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) and PP polymer in the mold with geometrically balanced runner system(Unary Branch Type Runner System). In this experiment, the effects of the melt temperature, injection pressure and injection speed on the filling imbalance were investigated. There was also the imbalance in TPV injection molding process as well as in conventional injection molding with plastics. The tendency of filling imbalance in TPV injection molding specially decreased by taking place the hesitation of TPV melt.