Abstract��By using of optical microscopy, scanning electron microscopy and spectroscopy, flange crack of hot��rolled H beam of carbon structure steel was analyzed. The results indicated that subcutaneous bubbles of continuous casting and edge crack are the main reasons for cracking of H beam flange. Inclusions in shallow surface crack promote the further expansion of fracture in the rolling process. Furthermore, overheating and burnt structure caused by unreasonable heating temperature and time will also induce the flange crack. Considering technical feasibility, an optimized temperature control technique has been put forward and the industry trial has a remarkable effect.
�������������ͣ�����������ѧ��. ����H����Ե����ԭ�����[J]. �й������ڿ���, 2011, 29(3): 51-55.
WANG Fu��liang��LI Ming��xian��HE Li��guo��WANG Xue��lun. Analysis of Flange Crack of Hot��Rolled H Section. Chinese Journal of Iron and Steel, 2011, 29(3): 51-55.
2011, Vol. 29 
