发泡工艺参数对闭孔泡沫铝胞结构的影响Effect of foaming parameters on cell structure of a closed cell aluminum foam
孟祥鋆,王德庆,郭昭君,薛微微
摘要(Abstract):
采用压缩空气法制备闭孔泡沫铝,研究空气流量、搅拌速度和发泡温度对胞结构的影响。结果表明泡沫铝的胞直径为4-11mm,密度为0.10-0.22g/cm3,孔隙率最高达96.3%;泡沫铝的胞直径随着空气流量和发泡温度的增大而增大,随搅拌速度的增大而减小,其中空气流量对胞直径的影响最显著;壁厚和结点尺寸随空气流量和搅拌速度的变化规律与胞直径相反;在相同的搅拌速度下,泡沫铝的密度随着胞直径的增大而减小且与胞直径存在对应关系,搅拌速度为600r/min时,关系式为ρ=0.0278+0.3602.e-0.132d。
关键词(KeyWords): 闭孔泡沫铝;工艺参数;壁厚;胞直径
基金项目(Foundation): 国家自然科学基金(50371013);; 辽宁省教育厅(202033221)
作者(Author): 孟祥鋆,王德庆,郭昭君,薛微微
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