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EFFECT OF COMPOSITION OF B_2O_3-MgO-SiO_2-Al_2O_3-CaO SLAG SYSTEM ON PHYSICAL PROPERTIES OF MELT |
CUI Chuanmeng; XU Xiuguang; ZHANG Xianpeng; WANG Kuihan; HAN Weiru (Northeastern University; Shenyang 110006) |
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Cite this article:
CUI Chuanmeng; XU Xiuguang; ZHANG Xianpeng; WANG Kuihan; HAN Weiru (Northeastern University; Shenyang 110006). EFFECT OF COMPOSITION OF B_2O_3-MgO-SiO_2-Al_2O_3-CaO SLAG SYSTEM ON PHYSICAL PROPERTIES OF MELT. Acta Metall Sin, 1996, 32(6): 637-641.
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Abstract The viscosity and the transition temperature (when the viscosity of slag changes sharply) of melting boron-magnesium-rich slag system of B_2O_3-MgO-SiO_2-Al_2O_3-CaO, as well as the density and the surface tension, were measured by using the spin-cylinder and double-cylinder continuous methods respectively. The results showed that the viscosity and the transition temperature decrease with the increase in the content of B_2O_3 in slags, and increase with the increase in MgO and basicity in slags when B_2O_3 content is constant. The density and the surface tension of the melt increase with increasing MgO or decreasing SiO_2 in slags. The density changes in the range of (2.5 ± 0.5) t·m~(-3), while the surface tension is in 0.4-0.6 N . m~(-1) .
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Received: 18 June 1996
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