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设计了一套适合制造小孔径泡沫铝合金的渗铸装置，并且生产出了泡沫铝试样．确定了铸型的结构形式和压头与压空间的间隙值，以及铸型所用的涂料，并确定了铸型的最小壁厚．分析了铸型在压渗时存在的应力，指出模具所受切向压力是引起模具破坏的主要力，适当增加壁厚可保证模具在压渗铝合金时不被胀形和弯曲．探讨了食盐粒子的预处理工艺．散状粒子的预处理工艺是将食盐粒子加热至４５０℃，并保温９０～１２０ｍｉｎ．
A suit of infiltration device suitable for the manufacture of small-aperture foamed aluminum alloy was designed and a foamed aluminum sample was produced. Determine the structure of the mold and the pressure head and the pressure space gap value, as well as the mold used in the paint, and determine the minimum wall thickness of the mold. The stress existing in the mold during infiltration is analyzed. It is pointed out that the tangential pressure to the mold is the main force that causes the mold to rupture. Appropriate increase of the wall thickness can ensure that the mold will not bulge and bend when it is pressed into the aluminum alloy. The salt pretreatment process was discussed. Pretreatment of bulk particles is the salt particles heated to 450 ℃, and incubated for 90 ~ 120min.