Quality control of 65Mn thin slab casting high-carbon steel in Tangsteel
YANG Xiao-jiang1,2
1. National Engineering and Research Center for Continuous Casting Technology， Central Iron and Steel Research Institute，Beijing 100081， China 2. Technology Center， Tangshan Iron and Steel Co., Ltd.， Tangshan 063016， Hebei, China
Abstract：In order to solve the center segregation and surface crack of 65Mn high-carbon steel in Tangshan Iron and Steel Company, the causes and mechanisms resulting in defects are analyzed. The surface crack is caused by the corner crack formed by the slab eddy in straightening process, and the internal quality is decided by the strength of continuous casting secondary cooling, the position of soft reduction and the content of S in steel. Through the adjustment of desulphurization process in LF, the optimization of mould powder, the improvement of secondary cooling strength, the center segregation and surface crack of 65Mn are excellent controlled.
杨晓江 . 唐钢薄板坯连铸高碳钢65Mn的质量控制[J]. 中国冶金, 2016, 26(12): 36-39.
YANG Xiao-jiang,. Quality control of 65Mn thin slab casting high-carbon steel in Tangsteel. China Metallurgy, 2016, 26(12): 36-39.
2016, Vol. 26 
