摘要
通过对SAPH440/400热轧酸洗板酸洗前后形貌进行对比,发现酸洗板表面存在红色氧化铁皮处在酸洗后呈现轻微压入痕迹,能谱分析发现酸洗板红色氧化铁皮中除了含有铁和氧元素外,还存在硅元素富集。由此确定酸洗板表面存在红色氧化铁皮主要是因为加热炉炉底氧化铁皮堆积,以及硅元素富集使在板坯头尾形成了难以在除磷过程中去除的铁橄榄石层,并在后续氧化过程中被氧化呈现红色。最后据此采取了相应的改进措施,并取得了较好的效果。
By comparing the morphology of SAPH440/400 hot rolled and pickled steel sheets before and after pickling,it was found that the positions where had red scale showed a slight indentation characteristics.And by energy spectrum analysis it was found that except element iron and oxygen,there were also silicon enrichment in the scale.So it could be concluded that the presence of red scale on the steel sheet surface was mainly due to the iron oxide accumulation at the heating furnace bottom,and silicon enrichment made fayalite layer form at the steel sheet head and tail which was difficult to remove during phosphorus removal process and was oxidized and appeared red.Finally improvement measures were adopted and good results were achieved.
出处
《理化检验（物理分册）》
CAS
2014年第8期613-615,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
