Abstract��Internal inclusion was one of the commonly detected defects in Fushun Special Steel Co.�� Ltd. The internal inclusion was analyzed by detected positional sampling�� acid leaching�� microscope and scanning electron microscope. 20Cr and 20CrMnTi belonged to low carbon aluminum deoxidation steel. And the internal inclusion was the oxide inclusion�� which chemical composition was mainly Al-Mg-Ca-O. The cause was that the inclusion was not removed after the reaction of refining deoxidation product Al2O3 and liquid steel. Thus�� the internal inclusion could be improved by modifying the composition of refining slag.
�ո�����: 2018-03-19
��������: 2018-12-26
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LIU Xiao-bin��AN Jie��LIU Gui-jiang��WANG Zhe�� LI Tao. Analysis of internal inclusion in automobile gear steel bar. , 2018, 36(6): 46-49.
2018, Vol. 36 
