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18 Basic Injection Molding Technologies
Original: Orignal | Author: DGMF Mold Clamps | Publish Time: 2021-09-13 | 723 Views | Share:
Below are the 18 basic injection molding technologies that injection molding technicians must know.

18 Basic Injection Molding Technologies

Below are the 18 basic injection molding technologies that injection molding technicians must know.


01. Nozzle in the injection molding technologies

The melt usually flows from the nozzle into the nozzle, but in some injection molds, the nozzle is part of the mold because it extends to the bottom of the mold. There are also two main types of nozzles: open nozzles and closed nozzles. In injection molding, open nozzles should be used more because they are cheaper and less likely to stay.

If the injection molding machine is equipped with a pressure-removing device, this nozzle can be used even for low-viscosity melts. Sometimes a closed nozzle must be used. This nozzle acts as a stop valve to block the plastic in the injection cylinder.

Make sure that the nozzle is correctly connected to the nozzle bushing, and the top hole is slightly smaller than the nozzle sprue bushing, which makes the nozzle easier to withdraw from the injection mold. The hole of the nozzle sleeve is 1mm larger than the nozzle, that is, the radius of the nozzle is 0.5mm smaller than the radius of the nozzle sleeve.