1.Technology Center of Lianyuan Iron and Steel Co., Ltd., Loudi 417009, Hunan, China;2.Metallurgical Material and Metallurgy College, Wuhan Science and Technology University, Wuhan 430081, Hubei, China; 3.Chief Engineer Office of Lianyuan Iron and Steel Co., Ltd., Loudi 417009, Hunan, China
Abstract：The cause and morphology of typical defects in cold rolled strip were studied. Simulation rolling experiment (SRE) was carried out. It was shown that entrapped mould flux was the major part of inclusion type defects leading to mottling on the surface of cold rolled strip. The morphology of the mottling was almost similar to the mottling caused by pressedin scale. Morphology of defects in the simulation rolled strip was consistent with actual ones, so simulation rolling is an effective way to study the defect formation and evolution. The typical defect analysis and results of simulation rolling showed that deep entrapped striplike mould flux in cast slab could cause lamination and the deep entrapped lumpylike mould flux could cause penetrating cracks in the middle of cold rolled strip. The pressedin scale caused by scratches on roller tables between continuous caster and the last stand, was one of the reasons for formation of sliver on the surface of cold rolled strip.
伍康勉;朱远志;周春泉;成小军;肖爱达;胡大. 冷轧板夹杂与氧化铁皮压入的原因与形貌辨析[J]. 钢铁, 2009, 44(2): 93-0.
WU Kangmian;ZHU Yuanzhi;ZHOU Chunquan;CHENG Xiaojun;XIAO Aida;HU Da. Cause and Morphology of Inclusion and Pressed in Scale in Cold Rolled Strip. Iron and Steel, 2009, 44(2): 93-0.
2009, Vol. 44 
