Abstract��In this study, one of surface defects looked like "line shape" were found by means of surface inspection technology in the production process of hot rolled strips at Chongqing Iron and Steel Limited Company. Macroanalysis, metallographic analysis, chemical analysis and tracing analysis were used to analyze the causes of longitudinal crack defect. Based on analysis of longitudinal crack of hot rolled strips, it can be concluded that longitudinal crack defect is caused by the crack of billet. Thus the billet production process is adjusted to reduce the billet crack and the longitudinal crack of steel strip, thus to avoid economic loss.
�ո�����: 2012-12-05
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E-mail: 13514680240@163.com
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��ӱ�ܣ��½ܣ�����. �������ֱ�����������ȱ�ݵij������������[J]. �й������ڿ���, 2013, 31(2): 46-49.
ZHU Ying-jie,CHEN Jie,ZHANG Qing. Cause Analysis and Elimination of Longitudinal Crack on Surface of Hot Rolled Strip. Chinese Journal of Iron and Steel, 2013, 31(2): 46-49.
2013, Vol. 31 
