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모조 러너를 이용한 계기판 사출성형의 게이트 위치 설계
한경희,최두순,김홍석,임용택,Han, Gyeong-Hui,Choe, Du-Sun,Kim, Hong-Seok,Im, Yong-Taek 대한기계학회 2001 大韓機械學會論文集A Vol.25 No.10
Injection molding is widely used in producing various plastic parts due to its high productivity, and the demand for injection molded products with high precision is increasing. To achieve successful product quality and precision, the design of gating and runner system in injection mold is very important because it influences the melt flow into the cavity. Some deflects, such as weld lines and overpacking, can be effectively controlled with proper selection of gate locations. In the present study, the design of gate locations in injection molding of a dashboard fur automobiles was carried out with CAMP mold, a PC-based simulation system for injection molding. A dummy runner system was developed to simulate a runner system in order to increase the efficiency of the analysis procedure. The numbers and locations of gates were iteratively determined in the present investigation. In this procedure, an acceptable design was obtained in terms of reducing the maximum pressure and clamping force.
정진경 ( Jeong Jin Gyeong ),최성진 ( Choe Seong Jin ),정인배 ( Jeong In Bae ),한혁동 ( Han Hyeog Dong ),이영진 ( Lee Yeong Jin ),조주형 ( Jo Ju Hyeong ),한경희 ( Han Gyeong Hui ),박진규 ( Park Jin Gyu ),박광화 ( Park Gwang Hwa 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.12
Spontaneous umbilical cord hematoma is a rare cause of fetal distress and intrauterine fetal death. The perinatal mortality rate approaches 50%. Various causes of the cord hematoma have been suggested as congenital abnormalities, short cord, trauma, cord