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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