| 黄金制品表层颜色变化的原因分析及处理方法 |
| |
| 引用本文： | 杨佩,高亚伟,陈佳语,杜媛媛.黄金制品表层颜色变化的原因分析及处理方法[J].贵金属,2016(Z1):145-151. |
| |
| 作者姓名： | 杨佩 高亚伟 陈佳语 杜媛媛 |
| |
| 作者单位： | 1. 深圳市金质金银珠宝检验研究中心有限公司,广东深圳,518112;2. 北京科技大学材料科学与工程学院,北京,100083 |
| |
| 摘 要： | 分析了黄金制品表面红斑与白斑的形成原因,在模拟条件下进行验证,并进行了消除红斑、白斑试验。结果表明,黄金制品表面的红斑可能为杂质氧化形成,可用热稀盐酸清洗去除;黄金制品表面的白斑可能为金汞齐,经450℃/30 min+910℃/10 min热处理可消除。2种处理方法对黄金制品原有表面光泽影响都很小,且都不影响原有成色以及质量。
|
| 关 键 词： | 黄金制品 表层颜色 金汞齐 热处理 |
Cause Analysis and Treatment Methods of Gold Products Surface Color Change |
| |
| Abstract: | Causes of erythema and white spots on the surface of gold products were analyzed and experimentally verified under simulated conditions, and experiments of eliminating erythema and white spots were conducted. The results show that, erythema on the surface of gold products may be formed by impurity oxidation, and can be eliminated by hot dilute hydrochloric acid; white spots could be gold amalgam which can be eliminated after 450oC/30min and 910 oC/10min heat treatment. Both of two methods slightly affects the original surface gloss of gold products, and don’t affect the original color and weight. |
| |
| Keywords: | gold products surface color gold amalgam heat treatment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
