Browse > Article
http://dx.doi.org/10.5228/KSPP.2010.19.3.145

Prediction of Flash Generation in Two-Color Injection Molding using The Rapid Heat Cycle Molding Technology  

Park, H.P. (한국생산기술연구원 금형.성형연구부)
Cha, B.S. (한국생산기술연구원 금형.성형연구부)
Rhee, B.O. (아주대학교 기계공학과)
Publication Information
Transactions of Materials Processing / v.19, no.3, 2010 , pp. 145-151 More about this Journal
Abstract
In case of thin-wall two-color injection molding, flashing often occurs when molten polymer flows into small gap at the parting line in mold with high pressure or under the unbalanced clamping force condition. In this study, flashing was examined in the production of thin-wall notebook case with large area when the rapid heat cycle molding (RHCM) technology was applied to the two-color injection molding. The effects of the RHCM technology on the part properties and weld-lines were compared with conventional injection molding. The flashing caused by the clamping device of the two-color injection molding machine was examined and compared by experiments and CAE analyses.
Keywords
Rapid Heat Cycle Molding Technology; Flashing; Clamping Force; Thin-wall Injection Molding; Two-Color Injection Molding;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Hiroyuki Higuchi., etc., 2005, Theoretical Model for Flash Generation, Poly. Eng. & Sci., Vol. 45, No. 2, pp. 198-206.   DOI
2 Hiroyuki Higuchi, Hirofumi Goto, Kiyohito Koyama, 2005, Effect of Processing Conditions on Flash Generation, Poly. Eng. & Sci., Vol. 45, No. 2, pp. 238-247.   DOI
3 Shiki Matsuo, etc., 2006, World’s First 3,000 ton Mold Clamping Force Electric Injection Molding Machine, Mitsubishi Heavy Industries Technical Review, Vol. 43, No. 3, pp. 1-6.
4 K. Park, J. J. Hwang, O. K. Kwon, J. H. Yun, 2007, Finite Element Analysis of Induction Heating Process for Development of Rapid Mold Heating System, Trans. Mater. Process., Vol. 16, No. 2, pp. 113-119.   DOI
5 K. Park, B. H. Kim, 2006, A Study on Improvement of Flow Characteristics for Thin-Wall Injection Molding by Rapid Mold Heating, Trans. Mater. Process., Vol. 15, No. 1, pp. 15-20. [9] http://www.moldflow.com   DOI
6 H. P. Park, B. S. Cha, B. O. Rhee, 2008, Development of Injection Molding for High Printability on Nano Pattern(400nm) using Rapid Mold Heating & Cooling, HyMap 2008, pp. 95-95.
7 G. O. Shonaike, etc., 1995, A Preliminary Investigation of Flash Formation During Injection Molding of Polyphenylene Sulfine and Liquid Crystaline Polymer Blends, Poly. Eng. & Sci., Vol. 35, No. 3, pp. 240-246.   DOI
8 H. P. Park, B. S. Cha, B. O. Rhee, 2009, Development of Rapid Mold Heating /Cooling Technology to Improve the Surface Defects of Injection Molded Parts, Antec 2009, pp. 2149-2153.