Comparison and Analysis on Cavity Pressure of Conventional Injection Molding and Injection Compression Molding
WANG Tao1,2, GE Yong1,2, LANG Jian-lin1,2, SUN Qi-wei1,2, LI Lei1,2, YAN Yue1,2
1. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;
2. Beijing Engineering Research Center of Advanced Structural Transparence for the Modern Traffic System, Beijing 100095, China
Abstract：The cavity pressure sensors were mounted in the self-developed injection compression mold. Comparison and analysis on cavity pressure of conventional injection molding and injection compression molding were conducted by changing process parameters. The results show that injection compression molding can greatly decrease the injection pressure and cavity pressure, and make the cavity pressure field more uniform. During the conventional injection molding,the influence of mold temperature on the cavity pressure is the most significant factor, followed by melt temperature, pressure holding time and holding pressure. During the injection compression molding, the compression speed influences the most, followed by melt temperature, mold temperature and compression stroke. The technological advantages and pressure field characteristic of injection compression molding were further validated with the low residual stress and small warpage, indicating the cavity pressure plays a major role in guiding processing properties.
王韬, 葛勇, 郎建林, 孙琦伟, 厉蕾, 颜悦. 注射压缩成型与常规注射成型的模腔压力对比分析[J]. 材料工程, 2018, 46(4): 127-133.
WANG Tao, GE Yong, LANG Jian-lin, SUN Qi-wei, LI Lei, YAN Yue. Comparison and Analysis on Cavity Pressure of Conventional Injection Molding and Injection Compression Molding. Journal of Materials Engineering, 2018, 46(4): 127-133.
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