The methods of reducing critical casting yield were analyzed theoretically.
并从理论上分析了降低临界成品率的几种途径。
Using thin, wide ingate and chill can prevent the shrinkage defect, and improve casting yield by 3%.
采用薄、宽的内浇道和冷铁工艺消除了飞轮铸件的缩孔缺陷，铸造工艺出品率提高3%；
Tight-lock coupler casting yield can be increased by 9% and the consumption of raw materials reduced and the economic benefits increased.
通过本课题研究，密接式车钩铸件出品率可以提高9%，降低了原料消耗，提高了工厂的经济效益。
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