干砂负压消失模铸造技术(简称LFC)中模样是消失模铸造成败的关键，而泡沫珠粒的充填是获得优质泡沫模样的关键工序之一。

In lost foam casting (LFC), the foam pattern is the key qualification, and the filling process is one of the crucial processes to ensure the high quality of the foam pattern.

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通过试验证实了微珠在很高的压力下仍然完好，其密度增加是由于水被压入部分具有较大孔径的微珠中所致。

In this paper, it is proven by testing result that the fine-grains could be in good condition even under great pressure.

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