Quality Defect Analysis and Controlled Strategies of H Beam
DI Quan-kang1,3,SUN Qi-song1,CHENG Si-hua1,DING Ning1,LI Zhan-bin2,KANG Yong-lin3
1. Shougang Technology and Research Institute, Beijing 100043,China 2. Changgang Technology and Research Institute, Changzhi 046000, Shanxi, China 3. University of Science and Technology Beijing, Beijing 100083,China
Abstract：The web crack, web pits, rotten steel flange and the R corner cracks of H-shaped steel beam blank rolling surface were tested by optical microscope observation, SEM observation and energy spectrum; the crack formation mechanism was also analyzed by means of ANSYS simulation of temperature field after profiled billet cogging. It is considered that H beam web crack formation is mainly related to the longitudinal angle beam blank R; the web surface is mainly connected with subcutaneous bubbles and furnace heating system; and black steel flange is mainly concerned with mould power; R corner cracks are related to large differences in stress caused by BD-Ur-E-Uf large temperature gradient in the rolling process. Measures were proposed accordingly.
邸全康,，孙齐松，程四华，丁宁，李占斌，康永林. H型钢质量缺陷成因分析及控制策略[J]. 中国钢铁期刊网, 2012, 31(1): 33-38.
DI Quan-kang1,3,SUN Qi-song1,CHENG Si-hua1,DING Ning1,LI Zhan-bin2,KANG Yong-lin3. Quality Defect Analysis and Controlled Strategies of H Beam. Chinese Journal of Iron and Steel, 2012, 31(1): 33-38.
2012, Vol. 31 
