- 産業: Software
- Number of terms: 1241
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- Company Profile:
Moldflow develops plastic injection molding software.
In injection molding, the shot weight is the mass of plastic delivered in one complete filling of the mold, including the molded 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 molding process the ram (or screw) is the part of the injection molding machine that pushes the polymer into the mold. See also screw.
Industry:Software
Injection molding 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
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 mold 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
Mold open time is the duration of time during which the mold is open. Mold open time begins when the mold opens for part ejection and ends when the mold 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
Normalized thickness is a measurement of part thickness. The normalized thickness value ranges from -1 to 1, where 0 is the center of the part and 1 and -1 are the plastic/metal interfaces, or mold walls.
Industry:Software
