The Vent region pressure shows the predicted air pressure within air traps or at regions connected to specified venting analysis (air vent) locations.
This result is generated by a Fill or Fill+Pack analysis sequence for Thermoplastics Injection Molding, Thermoplastics Overmolding, Reactive Molding or Microchip Encapsulation molding processes using 3D analysis technology, when the option to Perform venting analysis is enabled.
To view the Vent region pressure result, either select the check box next to the result in the Study Tasks pane, or right-click the result name and select Show, then use the Animation tools to view the result over time.
You can control how this result is displayed by editing the plot properties.
The Vent region pressure result shows the air pressure in areas of the part that are not filled with polymer. You can use this result together with the Air traps, including air vents result to identify regions of entrapped air that may be suitable vent locations.
At the end of the analysis, the vent region pressure should be zero across the entire part. This means that there should be no regions of entrapped air where pressure can build up. To optimize the placement of air vents, try one of these options.