Setting gas entrances

Gas, like the molten polymer, will always flow towards the point of lowest pressure. Therefore the gas entrance should be chosen to ensure that the gas stays in the gas channel, and that the area of lowest pressure is near the end of the gas channel.

  1. Click Molding Process (Home tab > Molding Process Setup panel > Process Settings) and select Gas-assisted Injection Molding.
  2. Click Set Entrances (Boundary Conditions tab > Gas panel > Set Entrances). The Set Gas Entrance dialog allows you to create a new gas entrance or to edit an existing one.
  3. Create or edit an existing gas entrance, as follows:
    • To create a new gas entrance, click New, click Edit, and make the necessary changes to the Gas-assisted injection controller, and click OK.
    • To edit an existing gas entrance, select it in the Set Gas Entrance dialog, and click Edit. Make the necessary changes to the Gas-assisted injection controller, and click OK.
  4. Click on the required gas entrance in the Set Gas Entrance dialog to select it.
  5. Click the cross-hairs on the model where you want to set the gas entrance. A large G symbol with an arrow pointing towards the model appears, indicating that the gas entrance has been set.
  6. Right-click and select Finish Gas Entrances.
  7. Application button then click Save (Save > Save Study) to save your study.
Note: You can update the gas entrance later by right-clicking on the yellow G and selecting Properties.
Parent topic: Gas entrances