The role of the exhaust system in the mold. How to exhaust?
The role of the exhaust system is of course the exhaust, in some large plastic parts or injection of relatively large plastic parts in the injection mold mold is due to mold cavity cavity in the injection of plastic is the pressure inside the cavity Too large, will lead to part of the plastic parts due to the role of air pressure caused by incomplete plastic parts of the phenomenon of missing, then we should make the appropriate location in these appropriate exhaust device to exclude air! Usually in the mold side of the open exhaust slot, if the top of the plastic or the bottom of the inserts or inserts to make a mold to produce a gap to exclude gas, the general gap of about 2 silk, too easy to leak plastic Or flash, the impact of plastic surface appearance!
