The internal thread comes within the broad definition of an internal undercut in that the thread forms a restriction which prevents the straight draw removal of the molding from the core.
因为内螺纹构成约束它阻碍零件从型芯的直接脱模所以内螺纹在内凹孔的广义范围内。
The same principle applies here as to stripping any internal undercut i. e. the molding must be free to expand during ejection to permit the molded undercut to ride over the restriction on the core.
相同的原理用到这儿关于推出任何内部模型凹穴，也就是说零件在顶出时必须能自由扩张答应形成的模型凹穴通过型芯的约束。
A novel internal core pulling mechanism of injection mould is designed for the part with internal full circle undercut.
针对具有整圆内侧倒扣特征的注塑件，设计了一种新颖的注塑模内缩机构。
A novel internal core pulling mechanism of injection mould is designed for the part with internal full circle undercut.
针对具有整圆内侧倒扣特征的注塑件，设计了一种新颖的注塑模内缩机构。
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