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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。
In the hot-rolled production line coil red oxide scale (red rust) residue test. The structure of the surface quality and the red rust of the coil were analyzed by on-line surface quality inspection system and scanning electron microscope. The effects of Si on the scale structure and the measures to improve the descaling were discussed. The results show that the Si content is the most important factor that affects the red rust residue on hot rolled coil. With the decrease of Si content, the residual amount of red rust on the coil surface is less. Scanning electron microscopy analysis revealed significant Si enrichment between the red rust and the matrix.