利用金相显微镜和扫描电镜手段研究了几种典型的热轧钢板表面翘皮缺陷，结果表明，热轧板表面翘皮缺陷皮下成分主要有氧化铁，二次氧化颗粒，夹渣等3种组成情况。根据翘皮缺陷皮处的能谱分析结果可以判断引起热轧板表面翘皮缺陷的原因主要有表面氧化铁皮的轧入、铸坯中的气泡、铸坯表面或边部开裂、侧压定宽机参数的调整不当、结晶器保护渣的混入等，详细讨论了热轧钢板表面翘皮缺陷产生的原因。
Surface upwarp defects in the hot rolled steel plate products are investigated by means of optical microscope (OM) and scan electron microscope (SEM). It is concluded that under the surface upwarping defects are mainly iron oxide, second oxide particles, and slag that correspond to three different morphologies respectively. According to EDS results, it can be concluded that surface upwarp defects in hot rolled plates are attributed to rolledin scale, gas cavity in casting blank, crack in casting blank, misadjusting of SP rolling mill, and droppedin crystallizer fluxes. The causes of surface upwarping defects in hot rolled plates are discussed in detail.
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