closed nozzle

The advantages and disavantages of the runnerless injection mould for the well type nozzles are analyzed.

分析了井式喷嘴无流道注射模的优缺点,提出了井室容量的计算公式,并以此为依据绘制了确定井室直径的列线图,阐述了防止井室内熔融树脂冷却固化的方法,最后以安全头盔为例介绍了井式喷嘴无流道注射模的应用。