Effects of Latent Heat on Cooling Process of the Fused AZS Material

In order to optimize the production process of the fused Zirconia-Alumina-Silica (AZS) material, the cooling process of fused AZS material was analyzed and the influences of latent heat on solidification sequence, solidification time, temperature gradient and residual melt modulus of cast system were discussed by using AnyCasting software. The results showed that: When latent heat is less than 20000 J/kg, the casting system solidifies perfectly from bottom to top. With the increase of latent heat, the shrinkage defects will be more likely to appear at the center of cast. The maximum temperature gradient and the residual melt modulus of the casting system decreases with the increase of the latent heat, while the solidification time of casting system is prolonged when the latent heat increases. The preferable latent heat of AZS material is 20000 J/kg to optimize the casting system and the production process to improve the cast density and control the defects.