If the maximum bulk temperature is close to the degradation temperature, consider redesigning the part geometry near the hot spot or changing the process conditions.ĭifferential temperature can also cause non-uniform shrinkage and warpage. Free Download Autodesk Moldflow Adviser for Windows PC it is plastics injection molding software includes productivity features that enable efficient. Hot spots are due to excessive viscous heating during the filling stage. Hot spots are indicated on the bulk-temperature contour or data-shaded plots during filling. The bulk temperature drops quickly when the flow stops in that area. Areas with continuous flow (heat convection) typically have a higher bulk temperature.
Uniform bulk temperature distribution during filling is desirable for mold design.īulk temperature displays are an alternate way to examine the flow distribution. For each element, a plot of bulk temp versus time shows that the switch-over from bulk temperature to average temperature gives a smooth curve.
Bulk temperature is a velocity-weighted average temperature when the polymer is flowing and a simple average temperature when the flow stops. Moldflow Announces the Release of Moldflow Plastics Insight 6.1 Plastics Simulation Software Offers New Capabilities, Interfacing and Licensing Features Novem03:06 PM Eastern Standard.
