排氣系統Venting System當熔體進入型腔,空氣被置換。為了使空氣得以逃逸,一條

淺的排氣口可以加工在模面上。排氣道也可穿過模板,比如說,

在必要的位置加頂出銷,頂出銷和模板孔之間的小間隙就足以

讓空氣逃逸。

When melt enters a cavity, air is displaced. In order to let air

escape, the surface vent, a shallow slot, can be machined

into the mold plate. The vent can also be provided through

the mold plate, e.g. incorporating an ejector pin in the

required position. The minute gap between the ejector pin

 

and the mold plate hole is sufficient to allow the air to escape.