Vacuum
Dies subject to forced ventilation are normally used to produce die castings that meet
the greatest demands. This way, it is possible to produce heat-treatable and
weldable die castings.
During evacuation of air or ventilation, three different ventilation situations can be
taken into account in MAGMAhpdc:
1. Vents from the cavity to the surroundings.
2. Vacuum systems that are activated when the plunger has passed the filling orifice.
A time dependent vacuum profile appears at the exhaust valve.
3. Running and gating systems of which the die and the shot chamber are evacuated before proportioning is carried out and the shot is started.
Shot profile
The concept of optimum user support is also realized in the visualization of the shot
profile. The display contains two pairs of curves with one curve each representing the
volume flow and one representing the plunger position, both being functions of time.
The proposal made by MAGMAhpdc is compared to the parameters modified by the
user. Deviations are graphically displayed, and the user can verify his input and correct it if necessary
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