用明度差法研究杂质对镀锡板黑灰的影响  

An Investigation on Effect of Impurities on Smudge Formation on Tin Plated Steel by TLDM

作　　者：李宁[1] 李平[1] 黎德育[1] 贡雪南[2] 

机构地区：[1]哈尔滨工业大学应用化学系,150001 [2]宝山钢铁集团公司冷轧部,上海201900

出　　处：《材料保护》2001年第1期15-16,共2页Materials Protection

摘　　要：对薄板镀锡及储存过程中镀锡层表面产生的黑灰进行了研究。通过扫描电镜（ＳＥＭ）和能谱分析的观察与研究发现，黑灰的主要成分是锡的氧化物ＳｎＯ和ＳｎＯ２，导致黑灰产生的最有害的杂质是Ｆｅ２＋和锡泥。制定了一种“转移—明差”法用以表征黑灰程度。明度值测试表明，相对误差很小，可定量表征黑灰程度。The harmful black granulas, which scatter on the surface of tin plated steel, formed during plating and storing, were investigated by SEM and EPMA. A new method named 'Brightness Difference Method' has been applied to characterize the degree of smudginess. The experiment showed that the main components of black smudge were SnO and SnO2. The effects of Fe2+ and tin sludge on the degree of smudginess were discussed.

关 键 词：电镀锡板 黑灰 铁离子 锡泥 明度差法 钢板 镀场 杂质 

分 类 号：TQ153[化学工程—电化学工业]