| 摘要 |
PURPOSE:To provide the designing method capable of properly planning the shape of a screw at every raw material and product. CONSTITUTION:A processor 11 forms mesh data wherein the resin passage in a barrel is three-dimensionally divided by a hexahedral cell element. A heat flow calculation part 12 performs the analysis of numerical values according to various boundary conditions and resin characteristics based on an actual phenomenon on the basis of the mesh data and performs heat flow analysis executing the separation of flow velocity and quantifying the history of physical quantities such as temp., a shearing speed or viscosity. A post-processor 13 displays the flow mark line in a region to be analyzed on the basis of the flow velocity separated by the analysis of the numerical values and also displays the respective physical quantities on the mesh data as a figure. Either one of the temp. distribution of the resin after passed through the resin melting and perfectly filling part in an extruder, shearing speed distribution and shearing stress distribution is set as an index using the value outputted by heat flow analysis and this index is used to plan the dimension of a screw. |
