电镀锡产品点状锈蚀缺陷分析与改善  

Analysis and improvement of pitting corrosion defects in electrolytic tin-plated products

作　　者：戴伟伟 DAI Weiwei(Cold Rolling Plant,Shanghai Meishan Iron&Steel Co.,Ltd.,Nanjing 210039,Jiangsu,China)

机构地区：[1]上海梅山钢铁股份有限公司冷轧厂,江苏南京210039

出　　处：《宝钢技术》2024年第6期41-45,共5页Baosteel Technology

摘　　要：分析了大气腐蚀条件下,电镀锡板发生点状锈蚀的本质原因。对锈蚀发生的潜在因素进行了排查和分析,排除了结露、原板夹杂、预处理、电镀锡、辊系损伤等因素与本缺陷的相关性,最终发现助熔剂与锈蚀缺陷的发生具有强相关性,为后续镀锡板锈蚀缺陷的预防和改善提供了参考。An investigation was undertaken to determine the primary factors contributing to the pitting corrosion defect formation on electrolytic tin-plated sheets exposed to atmospheric corrosive environment.The potential causes of the defect were investigated and analyzed,and the correlation between factors such as condensation,original plate inclusions,pre-treatment,electrolytic tinning,and roller damage with this defect were ruled out.The study ultimately identified a strong correlation between the flux and the defect.This finding offers valuable insights for the prevention of rust defects and improvement of tin-plated surface quality in the future.

关 键 词：电镀锡 锈蚀 助熔 

分 类 号：TG335.22[金属学及工艺—金属压力加工]