Injection Units

An injection unit in SOLIDWORKS Plastics simulates analogous functions performed by the physical injection and hydraulic units in an actual injection molding machine.

The injection unit serves two primary purposes:
  • Specifies the material to use.

    This is generally a melted polymer, but can also be a gas or liquid in the case of gas-assisted or water-assisted injection molding.

  • Specifies the settings for the Fill and Pack processes associated with the injection unit and selected material.

You associate the cavity and runner domains through which the materials flow with an injection unit. For most injection processes, this association is trivial and performed automatically. However, in the case of Multi Material Overmolding, you must specify the material association when you assign the domains (available for the solid analysis procedure) .