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金属学报  1983, Vol. 19 Issue (6): 79-85    
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从相图剖析炉外精炼渣对MgO-CaO系材料的侵蚀
陈肇友
冶金工业部洛阳耐火材料研究所
DISCUSSION ON OFF-FURNACE STEEL REFINING SLAG ATTACK UPON MgO-CaO REFRACTORIES FROM ASPECT OF CaO-SiO_2-Al_2O_3-MgO QUARTERNARY PHASE DIAGRAM
CHEN Zhaoyou (Luoyang Institute of Refractory Research; Ministry of Metallurgical Industry)
引用本文:

陈肇友. 从相图剖析炉外精炼渣对MgO-CaO系材料的侵蚀[J]. 金属学报, 1983, 19(6): 79-85.
. DISCUSSION ON OFF-FURNACE STEEL REFINING SLAG ATTACK UPON MgO-CaO REFRACTORIES FROM ASPECT OF CaO-SiO_2-Al_2O_3-MgO QUARTERNARY PHASE DIAGRAM[J]. Acta Metall Sin, 1983, 19(6): 79-85.

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摘要: 本文根据有关三元系相图绘制出CaO-SiO_2-Al_2O_3-MgO四元系于1600℃时的液相区、饱和面。通过计算还绘出1600℃时MgO在CaO-SiO_2-Al_2O_3渣中的溶解度图,以及MgO-CaO系材料在高温时同时吸收一定量Al_2O_3与SiO_2后产生的液相量。 依据这些图,分析讨论了炉外精炼渣对MgO-CaO系材料的侵蚀。从控制炉渣成分和选择恰当的MgO-CaO材料组成两个方面提出了改善炉衬寿命的途径。
Abstract:From the aspect of the phase diagram, the slags of the off-furnace steel refinement may be substantially considered similar in nature of a CaO-SiO_2-Al_2O_3-MgO quarternary system. The liquid zone and the saturation surface at 1600℃ of this system and the MgO solubility line at 1600℃ in CaO-SiO_2-Al_2O_3 slags as well as the quantity of liquid formed in different compositions of MgO-CaO system refractories after absorbed a certain amount of SiO_2 and Al_2O_3 at 1700℃ have been constructed by the allied ternary phase diagrams and the published data. Based upon above-mentioned, the off-furnace steel refining slags attack upon the MgO-CaO system refractories was discussed. Suggestion may be made of the improvements upon the service life of the linings either by controlling the composition of slags or by selecting properly the constituents of MgO-CaO refractories.
收稿日期: 1983-06-18     
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