【摘要】 既发挥冷铁的激冷能力以达到调节铸件的凝固过程，同时又避免产生白口、铸造应力、裂纹等铸造缺陷，这是铸造中使用冷铁的一对矛盾．文中通过对冷铁表面采用不同的处理方式，对冷铁的激冷能力进行研究，并将实验结果应用于生产．更多还原

【Abstract】 It is important to use property chillers both to adjust the solidified process and to avoid producing chill,stress and cracks in the castings,which is contradictroy on using chiller in the founary production. In this paper,chiller’s serfaces were treated by various ways .and the chilled ability way examined. This exprimented result was used in the producfion.更多还原