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镀锡产品边部线状缺陷分析与改进 被引量:14

Analysis and Improvement of Edge Linear Defects of Tinplate
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摘要 重点分析镀锡产品边部线状缺陷的生长机制和缺陷遗传规律。在大量现场试样分析的基础上,探讨轧制过程工艺对细线缺陷产生的影响。采用SEM,EDS等方式分析缺陷的形貌,成分及组织。结果表明,边部线状缺陷主要由炼钢的夹杂物、热轧带钢边部翘皮、氧化铁皮以及冷轧热轧工序边部擦划伤缺陷遗传所致。通过热轧辊形优化可以有效控制边部翘皮缺陷;通过系列工艺控制,可以有效避免夹杂物、擦划伤及氧化铁皮缺陷。镀锡产品边部线状缺陷率降低70%以上,产品质量得到有效改善。 The growth mechanism and inherited characteristic of linear defect at the edge of hot rolling steel plate has been investigated in details. Based on the analysis, the effect of rolling process were dis- cussed. SEM and EDS were used to analyze the morphology, component and structure of the defect. The result showed that, contributors to linear defect were inclusions from steel making process, the edge shell and oxide scale from hot rolling process and scratch from leveling process. The edge shell defect could he controlled by roll crown adjustment,, the inclusion scratch and oxide scale could be improved by series of process control technology. The edge linear defect proportion decreased by more than 70%, and the surface quality had been improved significantly.
出处 《钢铁钒钛》 CAS 北大核心 2016年第5期162-168,共7页 Iron Steel Vanadium Titanium
关键词 镀锡板 线状缺陷 边部翘皮 氧化铁皮 擦划伤 辊形优化 tinplate,linear defect, edge shell, oxide scale, scratch, roll shape change
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