hot runner nozzle

Hot nozzle generally includes two types: open type hot nozzle and valve type hot nozzle. Because of the hot nozzle forms directly determine hot runner system selection and mold manufacturing, so often the corresponding will be hot runner system is divided into open hot runner system and needle valve type hot runner system.

Hot runner mold nozzle structure according to different forms have a variety of forms, types are similar. There are hot tip type, needle type and pouring sleeve forms.

Nozzle technology is more advanced, there are advantages:

A. products do not leave a scar into the gate, the gate into the traces of smoothing;

B. can use a larger diameter of the gate, can make the cavity filling speed, and further reduce the injection pressure, reduce product deformation.

C. can pull wire phenomenon and salivation phenomenon when the mould is opened to prevent;

D. when the injection molding machine screw back, can effectively prevent from the mold cavity in the anti - absorbing material;

E. can be controlled in order to reduce the product weld mark.