Special way of demolding should be considered in designing mould for a component with internal circle undercut.The key points are splitting of cores and action sequence of cores after splitting.

• 具有整圆内侧倒扣特征的塑件在模具设计时必须考虑倒扣位的脱模方式,设计这类注射模的关键在于型芯的拆分以及拆分后各型芯动作的先后顺序。