Si含量对热轧板卷表面红色氧化铁皮的影响
Effect of Silicon Content on Red Scale of Hot Rolling Coil
王松涛1, 李 敏2, 朱立新1, 张文能1
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作者单位：(1. 首钢技术研究院, 北京 100043; 2. 首钢京唐钢铁联合有限责任公司, 河北 唐山 063200)
中文关键字：表面氧化铁皮； Si含量； 除鳞
英文关键字：surface red scale; silicon content; break scale
中文摘要：在热轧生产线上进行了板卷红色氧化铁皮(红锈)残留试验。利用在线表面质量检测系统和扫描电镜对板卷表面质量和红锈的结构进行了分析。讨论了Si对氧化铁皮结构的影响及提高除鳞效果的措施。结果表明，Si含量是影响热轧板卷表面红锈残留量的最重要因素。随Si含量的降低，板卷表面红锈残留量更少。扫描电镜分析表明，在红锈和基体之间存在明显的Si富集。
英文摘要：The experiment of red scale on HRC (hot rolling coil) was carried out on a tandem mill. The area percentage and structure of the red scale were analyzed by the on-line surface quality execution system and SEM. The mechanism of Si affecting the red scale and the methods of improving the break-scale effect were also discussed. The results show that the area percentage of the red scale was mainly affected by Si (silicon) content. The area percentage of the red scale decreases with the decrease of Si content. The SEM results show that the silicon concentration exists obviously between red scale and matrix.