The theoretical model and research status of the simulation of powder injection molding filling process are reviewed. Their merits and demerits are analyzed and compared.
综述了目前用于粉末注射成形充模流动模拟所采用的理论模型及其应用研究现状，并对各自的优缺点进行了分析。
In injection molding, any variation in processing that keeps the molding resin hot throughout filling allows increased relaxation and, therefore, decreased orientation.
在注塑成型时，整个填料过程始终保持成型树脂高温的任何加工变化都会增加松弛作用而减少方向性。
Filling imbalance is an important part of precision injection molding technology.
充填平衡性是精密注射成型技术的重要内容。
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