Design principles for the resin feed system in plastic mold (2)

• Eliminate the cold resin

Feed system should be able to collect the cold resin with slag well, avoid the cold resin enter into cavities

• Good venting system

• prevent the defects happen

Avoid the some defects, such as lack of injection, air trap, remaining internal stress too big, deformation, unqualified dimensions, the insert movement for the resin rush

• Qualify of the cosmetic surfaces

high efficient and good qualify to cut gate after molding

• Good production efficiency

Shorten the cycle time and be convenient to operate in the molding process, fewer follow up processing