判定脱模方向是实现模具自动设计的第一步，也是评估塑件或浇注件能否模具成型的重要因素。
Mold parting direction is an important factor to verify the moldability of a molded part and its determination is the first step to achieve automatic design of injection mold or casting die.
试验结果表明，铸铁件流动前沿不仅存在明显的气隙，而且采用聚苯乙烯模样材料，负压下浇注时，其气隙压力低于1个大气压。
The results indicated that there exists obvious gas gap in molten iron flowing front, and the pressure in gas gap with EPS pattern during vacuum pouring is less than 1 a tm.
详细地叙述了模具成形零件的设计、液压侧抽芯机构、浇注系统和其他结构的设计过程，以及模具工作过程。
The design of its molding part was used in the mold, inject system and other make up, and working process of the mould are specified in detail.
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