Solidification and crystallization properties of CaO-SiO2-Na2O based mold fluxes |
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| Authors: | Sheng-ping He Qian Wang Dan Xie Chu-shao Xu ZSLi KC Mills |
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| Affiliation: | 1. Chongqing Key Laboratory of Metallurgical Engineering,College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China
2. Department of Materials,Imperial College London,London SW72AZ,UK |
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| Abstract: | Crystallization properties play an important role in keeping a smooth running of continuous casting process and high sur-face quality of cast strands. To reduce fluorine pollution in slag, a new type of CaO-SiO2-Na2O (CSN) based mold flux was studied. The solidification and crystallization properties, including crystallization temperature, crystallization ratio and solidification minera-graphy, were measured, which were compared with the CaO-SiO2-CaF2 (GF) mold flux. The results show that the crystallization performance is equal to the high fluoride mold powder and CSN can be used for peritectic steel grades sensitive to longitudinal cracking in continuous casting. |
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| Keywords: | mold fluxes crystallization properties mineragraphy peritectic steel |
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