What need to pay attention to when design mold for plastic plating parts

​Now more and more plastic plating are instead of the metal plating, because of the low cost, low weight, design flexibility. What do we need to pay attention to when we design a mold for plastic plating part?

• Gate position: to avoid the high shear rate and share stress, get higher qualify plating, best option for gate is the edge gate

• venting escape design: high pressure and high temperature air will affect the filling of melt resin, even cause the burn mark on the cosmetic surfaces of plastic part. Venting escaping include 2 method of the Parting line and insert

• Cooling system: even mold temperature bring the benefit of the even of the shrinkage and shear stress