罩光涂料的快速评定  

RAPID EVALUATION OP VARNISH COATINGS

作　　者：王国良 周洁 

机构地区：[1]上海电镀厂

出　　处：《电镀与环保》1991年第5期23-24,共2页Electroplating & Pollution Control

摘　　要：为了快速评价电镀“仿金”层罩光涂料的防蚀性能,本文指出,把涂有罩光涂料的“仿金”镀件浸入含有显色剂A的5％NaCl水溶液中,当盐水透过漆膜作用到镀件上时,镀件表面发生腐蚀,所产生的金属离子就会与溶液中的显色剂A作用,发生显色反应。颜色的产生意味着腐蚀的开始,当试片腐蚀到一定程度,仿金层表面就会出现棕色斑点,所以本法可用作评定漆膜防蚀性能的一种快速方法。In order to rapidly evaluate the corrosion resistance of varnish surface coating on imitation gold plating layer, it is recommended to immerse the golden color plating part coated with varnish paint into 5% NaCl solution containing developer A. When salt water penetrates through the varnish coating and has an effect on the plating part, some corrosion will take place on its surface, The metal ions produced will act with developer A and cause a colouration, The appearance of colour means a start of corrosion; when it goes on to a certain degree, some brown spots will be found on the surface of the golden layer. Therefore, this method can be used for rapid evaluation on the corrosion resistance of varnish films

关 键 词：电镀 仿金属 罩光涂料 

分 类 号：TQ153.18[化学工程—电化学工业]