渗流法制备泡沫铝金属材料的工艺参数研究

摘要

泡沫铝是一种新型的多孔功能材料。采用液相法中的渗流铸造法制备泡沫铝合金。结果表明，在泡沫铝孔结构的成形中，影响渗流深度和孔均匀性的主要工艺参数为填料粒子尺寸及其与模具的预热温度、铝液的浇注温度和真空度。%Foam aluminum is a new porous functional material .An infiltration casting method in the liquid phase method can be selected for the preparation of foam aluminum alloy casting .The results show that during forming a pore structure of the foam aluminum, infiltration depth and pore uniformity are mainly influenced by the technological parameters , namely, particle size, pre-heating temperature of particles and a mold , molten aluminum casting temperature and vacuum degree .