The effect of electroslag refining on iron reduction from commercial aluminum was investigated.Cast electrodes of commercial aluminum were electroslag refined using KCl-NaCl-Na3AlF6 slag containing Na2B4O7.Experimenta...The effect of electroslag refining on iron reduction from commercial aluminum was investigated.Cast electrodes of commercial aluminum were electroslag refined using KCl-NaCl-Na3AlF6 slag containing Na2B4O7.Experimental results indicate that the iron content decreases with increasing Na2B4O7 addition and remelting time,and the iron content decreases from 0.400% to 0.184% under 9% Na2B4O7 addition for 30 min remelting.The elastic modulus,yield strength and ultimate tensile strength commercial aluminum are improved,and the tensile elongation is increased by 43% after electroslag refining.The chemical reaction between melt and slag to form Fe2B is the main reason for iron reduction and the thermodynamic calculation of the chemical reaction theoretically accounts for the formation of Fe2B.展开更多
Ali Hossernpour等人借助CaO-SiO2-Al2O3渣料在1600℃高温下对Fe-Si合金进行脱硼处理。通过改变SiO2/Al2O3和CaO/SiO2比值研究氧潜能和渣碱度对脱硼影响。试验结果表明,这两参数是影响硼在Fe-Si合金熔液和渣中占比的主要因素。出现最大...Ali Hossernpour等人借助CaO-SiO2-Al2O3渣料在1600℃高温下对Fe-Si合金进行脱硼处理。通过改变SiO2/Al2O3和CaO/SiO2比值研究氧潜能和渣碱度对脱硼影响。试验结果表明,这两参数是影响硼在Fe-Si合金熔液和渣中占比的主要因素。出现最大硼配比的临界氧潜能值,计算值为9×10^-18×101kPa。展开更多
基金Project (50825401) supported by the National Natural Science Foundation of ChinaProject (2012CB61905) supported by the National Basic Research Program of China
文摘The effect of electroslag refining on iron reduction from commercial aluminum was investigated.Cast electrodes of commercial aluminum were electroslag refined using KCl-NaCl-Na3AlF6 slag containing Na2B4O7.Experimental results indicate that the iron content decreases with increasing Na2B4O7 addition and remelting time,and the iron content decreases from 0.400% to 0.184% under 9% Na2B4O7 addition for 30 min remelting.The elastic modulus,yield strength and ultimate tensile strength commercial aluminum are improved,and the tensile elongation is increased by 43% after electroslag refining.The chemical reaction between melt and slag to form Fe2B is the main reason for iron reduction and the thermodynamic calculation of the chemical reaction theoretically accounts for the formation of Fe2B.
