This dialog is used to specify the part ejection criteria for a Cool analysis with automatic calculation of the required cooling time. These inputs are used by the Cool and Cool (FEM) solvers to determine the optimum cooling time for the part.
To access this dialog, ensure that you have selected an analysis sequence that includes Cool or Cool (FEM), click 
(), and set the Injection + packing + cooling time option to
Automatic
, then click Edit target ejection criteria.
When running an automatic cycle time, the solver initially tries to determine the time it takes to achieve the average Mold surface temperature. If this cannot be achieved, then the cycle time will be determined by using the time taken for the Minimum part percentage at ejection temperature to fall below the Ejection temperature.
For a Midplane or Dual Domain analysis, the cooling time is determined by the time taken for each element to reach at least the specified minimum part percentage frozen at ejection time.
A 3D analysis bases the cooling time on the overall part volume percentage frozen.
| Mold surface temperature | The temperature of the mold at the plastic-metal interface, where the plastic touches the mold. The mold temperature cannot be higher than the ejection temperature. |
| Ejection temperature | The temperature at which a material is rigid enough to withstand ejection, without permanent deformation or severe marking from the mold ejector pins. Enter the temperature at which you want the part ejected from the mold. |
| Minimum part percentage at ejection temperature | In order for the Cool analysis to automatically calculate the cooling time, the program needs to know the minimum part volume that must be frozen, before the part can be ejected. |