【摘要】 简要介绍了泡沫金属的特点、应用与发展；试验研究了熔模铸造法制备泡沫铝工艺，获得了合格的试样。石膏预制型的制备是熔模铸造法工艺的一个关键，分析了石膏型的主要成分、配比和各自的影响作用；真空渗流成形是该工艺的另一个重要环节，分析了其主要参数的影响机理，并确定了在试验条件下的最佳值。更多还原

【Abstract】 Abstract Characteristic,application and development of the foam metallic have been presented briefly.prepa ring foam aluminum by using investment casting process was made,thus achieving sound specimen.The preparation of plaster prefabricated mould is a key in investment casting and main composition,ingredient and affecting factors of plaster mould were discussed,the vacuum infiltrated shaping technique was found to be an important link,the affecting mechanism of the main parameters was also analyzed,and the optimum determinated.更多还原