Design & Manufacturing
- Volume 2 Issue 6
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- Pages.7-10
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- 2008
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- 2800-0323(pISSN)
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- 2733-452X(eISSN)
Effects on the process factors of blow molding affects to the PET bottle
블로우 성형공정변수가 PET 용기에 미치는 영향에 관한 연구
-
Kim, Jong-Dug
(KITECH)
;
- Go, Young-Bae (DONG-A Precision CO. LTD.) ;
- Kim, Ok-Rae (DONG-A Precision CO. LTD.) ;
- Park, Hyung-Pil (DONG-A Precision CO. LTD.) ;
- Kim, Hong-Ryul (DONG-A Precision CO. LTD.) ;
-
Kwon, Chang-Oh
(DONG-A Precision CO. LTD.)
-
김종덕
(한국생산기술연구원 정밀금형팀)
;
- 고영배 (동아정밀공업(주)) ;
- 김옥래 (동아정밀공업(주)) ;
- 박형필 (동아정밀공업(주)) ;
- 김홍렬 (동아정밀공업(주)) ;
-
권창오
(동아정밀공업(주))
- Received : 2008.08.12
- Accepted : 2008.11.21
- Published : 2008.12.01
Abstract
Injection-stretch blowing system for preform has been developed in this study. The preforms for injection blow molding and injection stretch blow molding are being manufactured by injection molding. However it contains gate mark that affects the bottom crack in the PET bottle. The compression molded preform does not contain gate mark, thus the appearance quality of bottle has been increased and the residual stress near gate(bottom of the bottle) has been reduced. The thickness distributions, haze, and transmittance are well accepted for the preform. Also, flow characteristics of the resin between a core and cavity could be analyzed through computer simulation.