采用可溶性阳极的电镀锡机组.pdfVIP

采用可溶性阳极的电镀锡机组 Werner Haupt Joachim Kuhlmann Caesar Sasse (西马克公司带钢处理线事业部，Hilden 德国) 摘 要 随着中国人民生活水平日益提高，对食品用罐和其他产品的镀锡板需求不断增长。生产极薄的电镀锡板， 不仅需要复杂的机械设备和可靠的处理线设计，还需先进的工艺和工艺设备。 电镀锡工艺主要是由预清洗、拉矫、电解浸蚀、预调整、电镀锡，软熔和钝化组成。每个工艺段都有很高要求以满 足最终产品的表面质量苛求。西马克电镀锡机组采用可溶性锡电极，具有相当的经济效益。例如，锡使用成本大大 降低、镀锡板表面质量优异稳定、机组高效、省却边部遮蔽、无须承担阳极表面还原费用以及溶解锡所需氧气费用。 西马克公司提供电镀锡工艺的各种创新技术。例如，在带材进入第一镀锡腔之前设置预调整室（preconditioning cell ），用以消除氢氧化铁并活化带材表面，有益于镀锡工艺的进行。另一创新是镀锡段之后设置蒸发器，以回收漂 洗水中所含的锡。 本文介绍西马克公司采用可溶性阳极的电镀锡机组工艺，重点介绍相关工艺设备。 关键词 带钢处理线，镀锡板，电镀锡，可溶性阳极，预调整室 ElectrolyticTinningLineswithSolubleAnodes Werner Haupt Joachim Kuhlmann Caesar Sasse (SMS Siemag AG, Strip Processing Lines Division, Hilden, Germany) Abstract With the increasing standard of living in China, the demand for tinplate for the production of foodstuff cans and tins for other products is rising. Apart from sophisticated mechanical equipment and reliable processing line design, highly developed process technology and process components are required for the production of electrolytically tinned ultra-thin sheet. The main process steps to be performed during strip coating are pre-cleaning, tension leveling, electrolytic pickling, preconditioning, electrolytic tin coating as well as re-melting and passivation of the surface. Each of these steps must meet high requirements to ensure the demanded surface quality of the final material. In the electrolytic tinning lines of SMS Siemag soluble tin anodes are used, resulting in considerable economic advantages. For example, the reduced expenditure on the tin used and the continuously high surface quality and efficiency of the system without the