An Experimental Study on Flow Characteristics of PBK40 for Glass Lens Press Process Simulation of a Plate Heating Type

Plate 가열방식 유리렌즈 성형공정해석을 위한 PBK40 소재의 유동 특성에 관한 실험적 연구

Generally, progressive type GMP process is more efficient than batch type because there are advantages that problems of each stage(heating, press, cooling etc.) are easily grasped and a time of production is shortened. But if single cavity is used in progressive type GMP process, there is disadvantage that productivity is decreased. So, in order to improve productivity of progressive type GMP process, it is essential to secure multi cavity mold technic. In this study, as a fundamental study to develop multi cavity used in glass lens molding, we conducted a compression test for PBK40.