Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2003.10a
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- Pages.211-216
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- 2003
A Study on the Weld Line Strength in Injection Molded Part
사출성형품의 웰드라인 강도에 관한 연구
Abstract
Weld line in injection molded part is one of the defect in injection molding process. Weld line deteriorates not only appearance quality but mechanical property. In this study weld line strength has been examined according to the injection operational conditions, materials and mold designs. PC and PP were used, and four different specimens were used in this experiment. Weld line strength decreased as injection temperature increases for PC. It was more dependent on mold temperature than injection temperature for PP Among the four different specimens, uneven thickness specimen showed the highest weld line strength.
Keywords
- Weld line;
- Injection Molding Process;
- Injection Operational Conditions;
- Materials and Mold Designs;
- Mold Temperature;
- Injection Temperature