Improvement of the running system is proposed by the further tests of water simulation, that is, adjusts the ingate installation to decrease the trapped blowholes.

• 水力模拟的进一步试验,提出了改进原浇注工艺的措施,改变内浇道设置以获得较好的充型效果,从而达到减少卷入性气孔的目的。