molten mass

nylon is melt spun. that is to say a molten mass of nylon, formed by melting nylon chips, is forced through holes in a spinneret.

尼龙是采用熔纺工艺制成的，即将由熔化的尼龙切片构成的尼龙熔融体，强制通过喷头的纺丝孔。

A simplified mould structure with double primary runner mounting on injection machine with double jet mechanism provides coupled runner opening which keeps pressure from plastic molten mass in balance and can evidently diminish elastic bending de ˉ flection of long cores.

介绍双主流道模具及注射机双喷嘴机构能在模具结构简单的前提下，提供成对浇口，使长型芯受到的塑料熔体压力保持平衡，明显地减少弹性弯曲变形。

distribution of magnetic field and its influence on the forming of molten mass in electromagnetic casting

电磁铸造中的磁场分布及其对熔体成型的作用