The cause of the infill in the molding process

In the process of injection molding, insufficient filling of products will be encountered. Only by understanding the causes of this phenomenon, can the problems be better solved and the product processing be completed efficiently.
The reason:
I. material barrel: the temperature of the nozzle and the mold in the injection processing is low, the amount of feed is insufficient, the remaining material in the material barrel is too much, and the injection pressure is too small.
Ji 'nan injection molding in the injection speed is too slow, the runner and gate size is too small, the number of gate is not enough, the location of the gate is not appropriate, cavity exhaust is bad.
Iii. The injection time is too short in the process of injection molding, the casting system is blocked, and the plastic fluidity is too poor.