Abstract：Due to the high content of aluminum, the peritectic reaction and slag-steel reaction of medium-carbon high-aluminum steel are very strong, which lead to multiple surface defects of slab, such as longitudinal cracks and depressions. In view of these defects, the characteristics of peritectic reaction and crack sensitivity of medium-carbon high-aluminum steel were studied from steel composition. On this basis, combined with slag reaction, the existing mold flux and continuous casting process were optimized. The industrial production practice showed that the optimized mold flux and relevant continuous casting process parameters can effectively control the surface defects of medium-carbon high-aluminum steel, and avoid the occurrence of longitudinal cracks and depressions.
毛文文, 路博勋, 郭银涛, 石晓伟, 孟庆勇, 李梦龙. 中碳高铝钢表面缺陷研究及控制[J]. 中国冶金, 2021, 31(3): 111-115.
MAO Wen-wen, LU Bo-xun, GUO Yin-tao, SHI Xiao-wei, MENG Qing-yong, LI Meng-long. Research and control of surface defects of medium-carbon high-aluminum steel[J]. China Metallurgy, 2021, 31(3): 111-115.
2021, Vol. 31 
