TiCp在锌合金液中均匀化过程的分析

利用XD^TM法制备了高颗粒含量的Al/TiC预制合金。并采用自制的实验装置对Al／TiC预制合金中的TiC颗粒在静止锌液中的均匀化过程进行了实验研究与分析，建立了TiC颗粒在锌液中均匀化过程的模型。结果表明：当锌液温度低于铝的熔点时，Al/TiC预制合金置于锌液后，发生锌向Al/TiC合金中的扩散，引起Al／TiC合金表层内液相线温度的降低，当这层内Al-Zn合金的液相线温度等于或低于锌液的温度时，Al-Zn合金便处于熔融状态，使TiC颗粒从Al／TiC合金块上脱落，脱落下来的TiC颗粒不断地向锌液内部传输，最终将均匀分布在锌液中。

Analysis of Uniformization Process of TiCp in Zinc Alloy Melt

The prepared Al/TiC alloy with high TiC particle content was prepared by XDTM method.The uniformazation process of TiC particle in prepared Al/TiC alloy in the stable zinc melt was studied and analyzed using self-made experimental equipment, and the model of the uniformazation process of TiC particle was built.The results show that when the prepared Al/TiC alloy is placed in the zinc melt and the temperature is below the melting point of aluminum, zinc melt diffuses into the prepared Al/TiC alloy.It results in the decrease of the liquid temperature of the surface layer of Al/TiC alloy;when the liquid temperature of Al-Zn alloy in this layer is equal or below the temperature of Zinc melt, Al-Zn alloy is melt and TiC particle drop from the Al/TiC alloy, the droped TiC particle transfer into the zinc melt and distribute uniformly in the zinc melt finally.