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http://dx.doi.org/10.5228/KSPP.2007.16.1.003

A Study on the Molding Technology for the Preform of Blow Molding Through Compression Molding  

Choi, S.H. (서울산업대학교 대학원)
Min, H.K. (서울산업대학교 대학원)
Lyu, M.Y. (서울산업대학교 금형설계학과)
Publication Information
Transactions of Materials Processing / v.16, no.1, 2007 , pp. 3-8 More about this Journal
Abstract
Novel compression molding 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.
Keywords
Injection Molding; Compression Molding; Injection Blow Molding; Injection Stretch Blow Molding; Preform; Residual Stress; Crack;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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