What are the advantages of hot runner of plastic mould?
The heat flow channel system includes a hot nozzle, a heat shunt plate, a thermostat, etc
Compared with the cold runner mould, the advantages of the hot runner mould are as follows:
1. when products with thin wall thickness, to ensure that the melt can be fully reached far away from the gate (gate), greatly reduce the product deformation degree, greatly improve the product surface quality and consistency of product.
2.The pressure loss in the circulating channel is small, the melt has good fluidity, and the density is easy to be even.
3.Eliminate all or most of the material handle (nozzle material), no need for manual shear nozzle, no need for re-crushing, improve material utilization, save energy, and improve production efficiency.
4.The cooling period of the molds is only the cooling time of the plastics, which shortens the processing cycle.
5.Both flow passages are automatically cut off, improving the appearance of the gate and improving the degree of automation.
6.The precise control of melt plastic temperature, which eliminates material degradation, ensures a more reasonable pressure holding time and reduces the internal stress of the product.