化工进展2026，Vol.45Issue(7)：3923-3932,10.DOI:10.16085/j.issn.1000-6613.2025-1278
液态二氧化碳辅助注塑相间穿透数值模拟
Numerical simulation on interphase penetration of liquid carbon dioxide-assisted injection molding
摘要
Abstract
Liquid carbon dioxide-assisted injection molding(LCO2-AIM)is a new process derived from fluid-assisted injection molding(FAIM).To analyze the interphase penetration mechanism of LCO2-AIM,the penetration process of LCO2 in LCO2-AIM was numerically simulated by fluid dynamics methods,and the residual wall thickness distribution law and the penetration behavior of fluid medium were compared and analyzed with water-assisted injection molding(WAIM)and gas-assisted injection molding(GAIM).The results indicated that the residual wall thickness of the three processes all showed a trend of gradually thickening along the flow direction.Among them,the overall residual wall thickness of WAIM was the thinest and that of GAIM was the thickest.The residual wall thickness of LCO2-AIM was similar to that of WAIM in the front section,then a significant increase in the middle section,and finally was similar to that of GAIM in the back section with a large fluctuation compared to WAIM and GAIM.In terms of fluid penetration velocity,all three showed a trend of first increasing and then decreasing.Among them,the overall velocity of WAIM was the lowest and followed by GAIM,while the penetration velocity of LCO2-AIM was the highest and the velocity gradient in the radial direction was the largest.关键词
液态二氧化碳辅助注塑/二氧化碳/数值模拟/多相流/残余壁厚/穿透行为Key words
liquid carbon dioxide-assisted injection molding/carbon dioxide/numerical simulation/multiphase flow/residual wall thickness/penetration behavior分类
化学化工引用本文复制引用
邹泽芫,匡唐清,杨帆,柳和生..液态二氧化碳辅助注塑相间穿透数值模拟[J].化工进展,2026,45(7):3923-3932,10.基金项目
国家自然科学基金(52273033,52163006) （52273033,52163006）
江西省自然科学基金重点项目(20232ACB204004) （20232ACB204004）
江西省重点研发计划"揭榜挂帅"项目(20223BBE51012). （20223BBE51012）
