铸造铝合金热分析技术研究

Thermal analysis of aluminum cast alloy

介绍了铸造铝合金热分析原理 ,主要研究了铸造铝合金晶粒度和共晶组织变质的热分析特征 ,选择和测定了冷却曲线上的ΔTl,tR 和ΔTE,te 两组特征点 ,提出了铸造铝合金晶粒细化和共晶硅变质程度的判据 。

Thermal analysis is mainly used to study the microstructure including grain refining and eutectic structure of aluminum cast alloy in this paper. It is found that the parameters of ΔT l and t R are effective to indicate the grain refining of the casting, and two parameters of ΔT E and t e can be used to forecast the grade of the eutectic structure. The correspondent data to the AFS standard of grain size and eutectic silicon have been worked out.