The time of die casting process means fill time, pressurized time, holding time and retention time. These times are comprehensive results from various aspects, including three factors, pressure, speed and temperature, then coupled with the physical properties of molten metal, the casting structure (especially wall thickness), the mold structure (especially the gating and overflow system). Time is a multiple factor, but it is closely related to those factors above. Therefore, time is very important for die cast
1. Fill time
Fill time means that the molten metal started to enter the cavity under pressure until the cavity was full.
The filling time is a result of combination of pressure, speed, temperature, mold gating and overflow system, alloy properties and casting structure (wall thickness). Thus, it is also a comprehensive reflection of the degree of intercoordination of various factors in the filling process.
The fill time should base on that the molten metal has not solidified and filled out. The following table is the choose of fill time: