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.

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。

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This paper introduces the process of making "nine dragon" tripod vessel and describes the technology and key for casting the body by lost wax pattern plaster mold process in detail.

前言： 简述了“九龙鼎”的制作过程，详细介绍了用熔模石膏型铸造大型鼎身的工艺及要点。

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Analyzes the reason of the white defects appearing in the lost pattern casting and puts for - ward some effective preventive measures referenced with the production reality.

分析了消失模铸造的铸件出现白色缺陷的原因，并根据生产实际提出了一些有效的预防措施。

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