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根据连续性、动量和能量守恒方程以及固／液界面上能量平衡原理，建立了考虑凝固层后的一维流动模型。采用有限差分法，计算了模腔内壁上注射料凝固层厚度与工艺参数的关系，研究结果表明：模具入口附近凝固层厚度开始急剧增加，然后增加速率逐渐减缓；熔体体积流率越大，凝固层厚度越小；适当提高模具温度，可以减小凝固层厚度，有利于充模过程。
According to the continuity, momentum and energy conservation equations and energy balance principle at the solid / liquid interface, a one-dimensional flow model considering the solidified layer is established. The results show that the thickness of the solidified layer near the entrance to the mold begins to increase sharply and then the rate of increase gradually slows down. The larger the volume flow rate of the melt, The smaller the thickness of the solidified layer; appropriate increase in mold temperature, the thickness of the solidified layer can be reduced, is conducive to the filling process.