天气预报 > 其他 > 金色项链掉色了怎么办
金色项链掉色了怎么办
更新时间: 2020-11-03 00:00:00  

用酸洗法,将镀层彻底退掉,露出里面的白亮色,在清凉干燥的秋冬季,不出汗的情况下还能用一阵子。方法是用50-80%的硝酸水溶液浸泡几秒到一分钟,微有烟雾生起立即取出放进水里刷洗干净、吹干。

开始那层金色面是镀的仿金层,仿金层的材料一般是70%的铜加30%的锌。铜与锌的耐氧化能力比真金差得远。在其他机件与装饰品、标识品(标牌)上的仿金层无一例外的要涂以透明涂料加以保护。对项链、脚链、戒针、耳环、鼻环、唇环、脐环等与肌肤密切接触的饰品,则不于涂漆,故易于褪色。

关键词: 金色 项链 掉色 怎么办

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