通过开设适当的出芯工艺孔，利用组合型芯，成功地设计出了大型、复杂、不规则熔模铸件模具。
The large, complex and irregular investment casting mold was successfully designed by property arrange technology hole for core cleaning and use combinative core.
即采用液压马达和齿轮机构实现机动旋转螺纹脱模，同时采用组合型芯结构实现螺纹和加强筋的成型。
In the mould, hydraulic pressure motor and gear is applied to realize demolding tread thimble, and combinated core is used for the forming of tread and reinforcing tendon.
采用带抽芯机构的组合压型，制作出了行星轮架整体蜡模。
The inner core pulling of The gear planetary frame can be solved by adopting combinative core.
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