pre-profiling
压力预置型通气 pressure preset ventilation ; PPV
压力预设型通气 pressure preset ventilation ; PPV
统称为压力预设型通气 pressure preset ventilation ; PPV
为了减少收缩和塌陷，在填充前可以用气体给模具加预压，或者可以在非表观面与型腔表面之间注入气体。
For shrinkage and sink reduction, molds can be pre-pressurized with gas before melt is injected, or gas can be introduced between the non-appearance side of the part and the mold.
youdao
应用推荐
模块上移
模块下移
不移动