长期以来,钠(或钠盐)一直是铝硅合金用得最普遍的变质剂。但是,钠盐变质工艺复杂,而且存在容易失效(仅45分钟),吸气严重,浸蚀坩埚等缺点,所以,有必要寻找新的变质剂。我们从一九七六年开始改用锆氟酸钾对合金进行变质处理,取得了良好的效果。因为用锆氟酸钾变质不仅对合金有变质作用,而且有精炼作用。本文综述锆氟酸钾处理ZL101合金的试验和应用。 Sodium (or sodium salt) has long been the most commonly used modifier for Al-Si alloys. However, sodium salt metamorphic process is complex, and there are easy to failure (only 45 minutes), serious inspiratory, crucible erosion and other shortcomings, it is necessary to find a new modifier. Since 1976, we have changed the zirconium hydrofluoride to alloy for metamorphism and achieved good results. Because with Zirconium fluoride metamorphism not only alloy metamorphism, but also refining. This paper reviews the experiment and application of Zirconium Zirconium Fluoride in the treatment of ZL101 alloy.