CAJ | 학술논문

分析横向拉伸性能偏低的热轧带钢试样发现,其氧化物夹杂含量较多,且主要是沿轧制方向的带状夹杂物;其存在破坏了金属的连续性,在拉伸过程沿带状夹杂物的垂直方向会产生破裂.分析认为冶炼终点碳含量低,脱氧后钢包搅拌效果差,脱氧产物上浮不充分是其主要原因.冶炼过程中应控制好终点碳,加强脱氧操作,减少钢中的夹杂物含量,提高热轧带钢的拉伸性能.
분석횡향랍신성능편저적열알대강시양발현,기양화물협잡함량교다,차주요시연알제방향적대상협잡물;기존재파배료금속적련속성,재랍신과정연대상협잡물적수직방향회산생파렬.분석인위야련종점탄함량저,탈양후강포교반효과차,탈양산물상부불충분시기주요원인.야련과정중응공제호종점탄,가강탈양조작,감소강중적협잡물함량,제고열알대강적랍신성능.
Analysis on the low transverse tensile properties of hot-rolling strip specimen found that its oxide inclusion content is more,and mainly is along the rolling direction of the strip inclusions;its existence undermines the continuity of the metal in the tensile process inclusions along the strip will have the breakdown in the vertical direction.Considering the main reason is that low carbon content at end-point,bad stirring ladle deoxidation effect and inadequate surface deoxidation production.Smelting process should be to control well carbon content at end-point,enhance deoxidization operation,reduce the inclusions in steel content,improve the tensile properties of hot-rolling strip.