低碳铝镇静钢板面发黑现象分析  

Analysis on the Blackening Surface of the Low Carbon Aluminum-killed Steel

作　　者：刘玉章[1] 戴学诚[1] 张新鹏[1] 

机构地区：[1]宝山钢铁股份有限公司冷轧厂,上海201900

出　　处：《钢铁钒钛》2008年第4期77-80,共4页Iron Steel Vanadium Titanium

摘　　要：研究了经脱脂后低碳铝镇静钢罩式炉退火后板面的"丝状"发黑现象,并对发黑部位的微观形貌、元素成分、组织结构和产生机理进行了分析和探讨。分析发现"丝状"发黑现象是C在带钢上结晶生长的结果,发黑部位的物质是石墨。After low carbon aluminum - killed steel was annealed in the bell annealing furnace, the filiform blackening surface of the cold - rolled steel sheet was investigated, and its micro - morphology, elemental composition, structure and generation mechanism was analyzed and discussed. The studies show that the phenomenon is the result of that carbon was crystallized on the sheet surface during the recrystallization annealing. The black substance causing the surface blackening is graphite.

关 键 词：低碳铝镇静钢 板面发黑 罩式炉 退火 冷轧板 石墨 

分 类 号：TG142.15[一般工业技术—材料科学与工程]