以模拟分析为基础,阐述了木塑挤出3D成型过程相关参数对物料成型温度及速度的影响。以喷嘴出料口径、成型动模板速度和空气对流换热系数为变量,通过挤出物料流动过程的模型分析,获得挤出物料温度变化规律及操作匹配关系。结果表明:较大口径出料时,为提高效率,可适当提高动模板移动速度,同时调高供料螺杆转速,来控制物料层厚;可以通过改变空气对流换热系数,以使各物料降温速度控制在合理范围内。 Based on the simulation analysis, the influence of the related parameters of wood-plastic extrusion 3D forming process on the temperature and speed of the material forming was expounded. Taking the outlet diameter of nozzle, the speed of forming moving template and the convective heat transfer coefficient of air as variables, the changing law of temperature of extrusion material and operation matching relationship were obtained through the model analysis of extrusion material flow process. The results show that for large diameter discharge, to increase the efficiency, the moving speed of movable die plate can be properly increased and the feed screw speed can be adjusted to control the material layer thickness. By changing the air convection heat transfer coefficient, Speed ​​control within a reasonable range.