Abstract：The edge crack is the important factor which impairs the quality of hot rolled coil. Taking sample of the edge cracks defects and analyzed them by metallurgical analysis, SEM and spectrum analysis; and comparison rolling test was made on continuous casting slab. It proved that the edger cracks are caused by the transverse crack of the slab corner. At the same time full investigations were carried out on the steel chemicals, mould powders, mould cooling and second cooling.Then effective measures were proposed to upgrade transverse corner cracks such as optimization of steel chemicals, casting mould powders, second cooling and weakening mould cooling. With above measures, the edge cracks are reduced sharply.
郭翔宇，李太全，沈岸明，潘树敏. 邯钢新区热轧卷板边裂成因分析和改善[J]. 中国钢铁期刊网, 2011, 30(2): 35-40.
GUO Xiangyu，LI Taiquan，SHEN Anming，PAN Shumin. Analysis and Improvement of Edge Cracks of Hot Rolled Coil. Chinese Journal of Iron and Steel, 2011, 30(2): 35-40.
2011, Vol. 30 
