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다수 캐비티를 갖는 핫러너 금형에서의 균형충전을 위한 자동제어시스템
장민규,조일규,이옥성,정영득,Jang, Min-Kyu,Jo, Il-Kyu,Lee, Ok-Seong,Jeong, Yeong-Deug 한국금형공학회 2015 한국금형공학회지 Vol.9 No.1
For mass production of plastics, injection molds have multi-cavities. However, filling imbalance between cavity to cavity always has occurred in multi-cavities mold, and this has caused low quality of plastics part. In this study, the closed-loop-control system which can control temperature of hot manifold and nozzle in hot runner mold for filling balance has been suggested, and a series of experiment about difference of filling time and weight in cavity-to-cavity was conducted. As a result of using closed-loop-control system, a remarkable improvement in reducing filling imbalance was confirmed.