采用渗流铸造法和粉末冶金法制备闭孔泡沫铝合金。结果表明,采用渗流铸造法时影响渗流深度及孔均匀性的主要工艺参数为粒子尺寸及其与模具的预热温度、铝液浇注温度和真空度;采用粉末冶金法时,影响孔结构的主要工艺参数为发泡剂的加入量、发泡温度和发泡时间。 Closed-cell foam aluminum alloy was prepared by seepage casting method and powder metallurgy method. The results show that the main parameters affecting the seepage depth and pore homogeneity when the seepage casting method is adopted are the particle size, the preheating temperature of the mold and the pouring temperature and the vacuum degree of the molten aluminum. When the powder metallurgy method is adopted, the main influencing factors on the pore structure Process parameters for the amount of foaming agent, foaming temperature and foaming time.