- 産業: Software
- Number of terms: 1241
- Number of blossaries: 0
- Company Profile:
Moldflow develops plastic injection molding software.
Gate freeze is the moment during the packing phase when polymer at the gate has frozen solid and no more polymer can be packed into the mould cavity.
Industry:Software
Gloss is the shiny appearance of a moulded part's surface. Differences in the gloss finish of a part are caused by different projection behaviours of the plastic at the mould wall, due to different cooling conditions and shrinkage differences. You can remove dull surface patches by drying the material, decreasing the injection speed or increasing back pressure.
Industry:Software
High cushion occurs when the cushion is too large and the material is kept in the barrel for too long. This can result in defects such as short shot.
Industry:Software
Hydraulic pressure is the pressure applied to the injection ram during the injection phase. Setting hydraulic pressure is one way of specifying the velocity phase for the moulding cycle. The hydraulic line pressure is the pressure in the main supply line from the pump; typically measured by means of a gauge in the hydraulic line. There is a direct relationship between the injection pressure and the hydraulic line pressure called the machine intensification ratio.
Industry:Software
In a part with multiple flow paths, the flow can slow down or hesitate in thin regions. This allows the melt to cool in thin regions and in some cases freeze before filling is complete, causing short shots. Flow hesitation is most likely to occur in parts containing thin diaphragms, ribs and hinges.
Industry:Software
In injection molding, the shot weight is the mass of plastic delivered in one complete filling of the mold, including the moulded parts, sprue, runners, and flash.
Industry:Software
In the context of model geometry. When modeling, you typically create nodes and then use nodes to create curves and regions.
Nodes take on special significance when you assign attributes to them. For example, you might assign an injection location, a coolant inlet, a constraint, or a load to a model node.
A node is a special coordinate position in space. Nodes are saved with a model.
Industry:Software
In the injection moulding process the ram (or screw) is the part of the injection moulding machine that pushes the polymer into the mold. See also screw.
Industry:Software
Injection moulding simulation involves solving the governing equations of mass, momentum, and energy numerically over the physical domain. The numerical implementation involves discretizing the physical domain into a number of sub-domains, or elements. The dependent variables (velocity, pressure, temperature) are approximated within each element. In short, the continuous domain is broken into many connected sub-domains and the dependent variables are approximated over the whole domain.
Mesh density is the number of elements per unit area. In general, the more elements in the mesh, the more accurate the analysis results, at the expense of longer calculation times.
Industry:Software
Intersecting mesh elements are mesh elements that lie on different planes and intersect each other.
Industry:Software
