1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;2. Technology Center, Zhangjiagang Pohang Stainless Steel Co Ltd, Zhangjiagang 215625, Jiangsu, China
Abstract��The effect of the smelting temperature, vacuum and aluminum content on oxygen pickup in molten steel originated from the decomposition of CaO lining is studied during vacuum induction melting aluminum��containing steel with the help of thermodynamics fundamentals. The smelting of aluminum��containing steel has been fulfilled by 25 kg vacuum induction furnace with the fused magnesia crucibles and calsia crucibles molded by ramming process. At the vacuum level from 10 Pa to 50 Pa, the magnesia crucible presented a strong tendency of oxygen pickup in molten steel from which the total oxygen content of steel was increased with the increasing of aluminum burning loss. When the calsia crucibles were used, the oxygen pickup in molten steel did not occur. Because the alumina inclusions in molten steel were assimilated by calsia crucible during vacuum induction melting, the total oxygen of the steel was gradually decreased to 0��000 3%.
Ѧ����;�뽭��;�ܹ���;����;�����. ��ո�Ӧ���������ֵ���������[J]. �й������ڿ���, 2007, 19(11): 18-0.
XUE Zheng��liang;QI Jiang��hua;ZHOU Guo��fan;JIN Yan;HU Hui��jun. Deoxidizing Law of Aluminum��Containing Steel During VIM. Chinese Journal of Iron and Steel, 2007, 19(11): 18-0.
2007, Vol. 19 
