Abstract：Single hot thermocouple technology and XRD were used to research the effect of[w((CaF2))]on the crystallization of CaO-SiO2-Al2O3 mold fluxes. What’s more，time-temperature transformation（TTT）curves with varied[w((CaF2))] was obtained and the type of the crystal was verified. Results show that the crystallization of CaO-SiO2-Al2O3 mold fluxes is gehlenite and CaF2，while cuspidine appears during the transformation of mold fluxes with low[w((CaF2))；]with[w((CaF2))]increasing，the crystallization incubation time decreases，and the crystallization rate is accelerated. However，after[w((CaF2))]reaches 12%，the changing trend of crystallization incubation time and crystallization rate are not remarkable. Compared with mold fluxes with low[w((Al2O3))，]the crystallization capacity of the mold fluxes researched is stronger.
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2018, Vol. 53 
