我们阅读了《防腐与包装》1986年第一期中康乃旺同志撰写的关于《引信钢零件镀锡雨季变质初探》一文,颇有同感。机加与冲压零件比光洁度高的弹簧零件变质严重,变化点也呈浅蓝色圆斑或锈斑。我厂地处华南,梅雨季节时间更长,湿热的空气造成零件变质更快、更严重,一度返修率曾高达80％以上。在湿热的高温季节中,特别是6～9月,零件变质更快,有时从镀槽取出烘干后第二天就出现变质点,多则一个星期也会出现浅色斑点。为解决这一质量问题,我们采用 We read “Corrosion Prevention and Packaging,” 1986, No. 1, written by Comrade Nai Want, “on the detonation of parts of the fuselage during the rainy season,” a text quite agreeable. Machining and stamping parts than the high degree of finish spring parts serious deterioration, change point also showed a light blue spot or rust spots. My factory is located in South China, the rainy season longer, hot and humid air caused by the deterioration of parts faster, more serious, once the repair rate was as high as 80%. Hot and humid in the hot season, especially from June to September, parts deterioration faster, and sometimes remove from the plating bath on the second day after the metamorphic point, as many as one week there will be light-colored spots. To solve this quality problem, we adopt