- Domeniu: Software
- Number of terms: 1241
- Number of blossaries: 0
- Company Profile:
Moldflow develops plastic injection molding software.
Jetting is the snake-like stream of polymer melt that occurs when the melt is pushed at a high velocity through restrictive areas (such as the nozzle, runner, or gate), into open, thicker areas, without forming contact with the mould wall.
In the jet, contact points form between the folds of melt, creating small welds. Jetting can lead to part weakness, surface blemishes, and internal defects.
Industry:Software
Melt density is a single point density value of a polymer at its average processing temperature, and at zero, or near zero, pressure.
Industry:Software
Mould open time is the duration of time during which the mould is open. mould open time begins when the mould opens for part ejection and ends when the mould closes so that the screw can begin moving forward for injection.
See also cycle time.
Industry:Software
Nominal part thickness is the thickness of the part at the thickest section.
Industry:Software
Normalised thickness is a measurement of part thickness. The normalised thickness value ranges from -1 to 1, where 0 is the centre of the part and 1 and -1 are the plastic/metal interfaces, or mould walls.
Industry:Software
Nozzle pressure is the pressure applied to the polymer at the nozzle. Setting nozzle pressure is one way of specifying the injection pressure of the polymer.
Industry:Software
Optimization is the process of finding the best conditions for moulding a particular part. The part geometry, the material selection, the injection location, and the processing conditions can all be optimized.
Industry:Software
Overlapping mesh elements are mesh elements that overlap in the same plane. Remove overlapping elements from a mesh because they interfere with accurate analyses.
Overlapping elements include:
1) Mesh elements do not overlap.
2) Partially overlapping mesh elements.
3) Fully overlapping mesh elements.
See also intersecting mesh elements
Industry:Software
Overpacking occurs when extra material is compressed into one flow path while other flow paths are still filling. The shortest and thickest flow paths fill first, resulting in overpacking. Overpacking can cause warpage, flashing and excessive cycle time and part weight.
Overpacking generally occurs in sections with the shortest fill time.
Industry:Software
Plastication is the process in which raw material is changed to melt and pushed to the front of the screw through a rotational action.
Industry:Software
