- 産業: Software
- Number of terms: 1241
- Number of blossaries: 0
- Company Profile:
Moldflow develops plastic injection molding software.
The density of a plastic part is measured by dividing its mass by its volume. A denser part has more plastic molecules and more weight per volume. A part can have some regions with higher density than others.
Industry:Software
A disc gate is a mold gate used in an identification of a molded part, generally having the same cross-section as the mold runner.
Industry:Software
The dominant flow path is the flow path of least resistance (the smallest pressure drop) from the polymer injection location to the last place to fill. In the graphic below, the cone indicates the injection location and the X indicates the last place to fill.
The dominant flow path is normally, but not always, the longest flow path.
Industry:Software
The angle included in the part design to allow the part to be easily ejected from the mold.
Industry:Software
Drooling is leakage of polymer from the nozzle, sprue, or gate. This creates thin strands of plastic that can get caught in the mold.
Industry:Software
Dwell is a pause in the mold closing cycle of a compression molding operation to permit gas to escape from the molding material.
Industry:Software
Dynamic flow is the flow before the cavity is actually full, when a flow front still exists towards the end of the cavity. This results in an area within the mold without plastic.
Industry:Software
Ejection is the removal of molded parts from the mold by mechanical means, or with compressed air.
Industry:Software
Ejection temperature is the averaged temperature of the part at the time it is ejected from the mold.
A molded part should be ejected only when it has enough strength to undergo the force of ejection, without excessive warpage or marks from ejector pins. The ejection temperature depends on the resin, part thickness, application, and shop floor practice. A part ejected at a higher temperature can reduce the cooling time, but may increase warpage.
Industry:Software
Ejection time is the moment when the mold opens to eject the part. For example, an ejection time of 42 seconds indicates that 42 seconds elapsed from the moment the mold closes for injection until the moment the mold opens for ejection.
Industry:Software
