Abstract:The mineralogical constitution of mold fluxes was investigated at the different temperature by TEM and XRD. The results shown that with increasing of experimental temperature, the crystallization ratio of mold fluxes was decreased both during cooling and heatingup, the major crystal phase of mold fluxes were cuspidate, wollastonite and melilite. The crystallization ability of cuspidate was the best at 1000 ℃ and 1200 ℃, but it couldn’t be precipitated at 1300 ℃. Wollastonite with perfect crystal texture was only precipitated at 1000 ℃. Melilite presented obvious the optical properties and developed crystal at 1300 ℃, however it was the small grain crystallite because of slow crystal growth at 1000 ℃ and 1200 ℃. At same experimental temperature, the solidification structure of mold fluxes was dense that had the higher crystallization ratio and small crystal size during heatingup, in addition the crystal growth of mold fluxes was better that had stronger crystal during cooling.
孙丽枫,刘承军,姜茂发. 不同温度条件下连铸保护渣矿相结构的研究[J]. 中国冶金, 2008, 18(2): 33-33.
SUN Lifeng,LIU Chengjun,JIANG Maofa. Study of Mineralogical Constitution of Mold Fluxes at Different Temperature. China Metallurgy, 2008, 18(2): 33-33.