사출 금형의 병렬 냉각 채널 설계

다국어 초록 (Multilingual Abstract)

The injection molding process is suitable for manufacturing the complicated plastic products. As the customer needs for higher quality products increase, realization of precise dimensional and shape controls is getting more important, For this it is important to obtain uniform cooling procedure over the whole surface of high temperature molded plastic. Failure to this can leads to different shrinkage speed, internal stresses and unwanted shape deformations. It needs to distribute coolant flow rates to main channel and to sub-channels properly for insuring uniform cooling process when there are parallel cooling channels. In this study, three-dimensional turbulent flow simulations for representative parallel cooling channels were performed. To insure intended flow rate to each sub-channels various shape designs for channel system were investigated. The results show that as the Reynolds number increases the effect of shape design are more profound. Through the proper flow distribution, uniform cooling effects would be expected.