급속 냉각·가열 장치를 사출제품에 적용했을 때, 사출성형 조건이 수지의 휨에 미치는 영향 When Rapid Cooling and Heating Device is applied to injection products, Influence of Operation Condition on the Warpage of Plastics
한국기계기술학회지
(韓國機械技術學會誌)
제19권 제3호
(2017.06)
pp.348-353
pp.348-353
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
Warpage of injection molded product is caused by non-uniform shrinkage and residual stress. A method of removing uneven molding shrinkage and residual stress is to remove the defective factor to Uniform cooling of products. Warpages for part designs have been investigated in this study according to the injection molding conditions for amorphous ABS and crystalline PP by the rapid cooling and heating system. Experimental results showed that the crystalline resin was more warped than amorphous resin, Warpages have been observed in the regions of the part, near gate region and flow direction region.
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