The experimental results point that the actual head on ingate and the velocity of ingate are determined by both the total static head and the cros-sectional area ratio of sprue to ingatc.

• 试验结果指出:浇注系统内浇口实际作用压头和出流速度不仅取决于总压头,还取决于直浇道对内浇口的截面比。