Measurement and Analysis of Cavity Pressure and Melt Filling Capacity During Injection Molding |
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| Authors: | Wu Hong-wu Zhang Shao-dan Qu Jin-ping Xu Hai-hang |
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| Affiliation: | 1. The Key Laboratory of Polymer Processing Engineering, Ministry of Education, National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology , Guangzhou, P.R. China mmhwwu@scut.edu.cn;3. The Key Laboratory of Polymer Processing Engineering, Ministry of Education, National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology , Guangzhou, P.R. China |
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| Abstract: | Using an online measure system consisted of a high sensitivity pressure sensor, a spiral channel mold and a data collecting/analysis series. The cavity pressure and flow length response under different injection pressure, injection velocity, mold temperature and different vibration condition was measured and analyzed in this study. The results show that the cavity pressure and flow length increased with the increase of injection pressure, injection velocity and mold temperature. In vibration assisted injection molding (VAIM), the cavity pressure and flow length increased as a result of imposing vibration. The change of amplitude and frequency in VAIM had more distinct effect on flow length than injection pressure. The results also indicate that the measure system established in this study can accurately monitor and record the changes of cavity pressure, and could be used in the study of melt's filling capacity in injection molding process. |
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| Keywords: | Cavity pressure Flow length Injection molding Vibration |
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