铜鼎特殊保养方法
碱液浸泡法
Alkali immersion method
将被腐蚀的铜雕置于倍半碳酸钠溶液中浸泡,使铜的氯化物逐渐转换为稳定的铜的碳酸盐,铜雕的氯离子被置换出来转入浸液中。浸液需定时更换,直至浸液中无氯离子出现为止。随后将器物用蒸馏水反复清洗,除去碱液,干燥后封护。碱溶液仅把氯化物提取出来,保留着色彩斑斓的孔雀石等腐蚀层,不损害铜雕的原貌。此法缺点是置换反应时间长;另外氯化物不仅附在锈层表面,而且已渗入器物腐蚀结壳的深部,难以置换。
The corroded copper carving is immersed in sodium sesquicarbonate solution, so that the chloride of copper is gradually converted into stable copper carbonate, and the chloride ion of the copper carving is replaced and transferred into the immersion solution. The leaching solution should be replaced regularly until chloride-free ions appear in the leaching solution. Subsequently, the utensils were repeatedly cleaned with distilled water to remove the lye and sealed after drying. Alkali solution only extracts chloride and retains colorful corrosive layers such as malachite, without damaging the original appearance of copper carvings. The disadvantage of this method is that the replacement reaction time is long; moreover, chloride not only attaches to the surface of the rust layer, but also penetrates into the deep part of the corrosion crust, which makes it difficult to replace.
椰子油和蒸馏水结合方法
Combination of Coconut Oil and Distilled Water
首先要将椰子油少量的倒在干净的软布上,轻轻的进行擦拭,这样有助于铜雕自身的保养,之所以使用椰子油,是因为椰子油本身含有的物质不会造成铜的褪色,这一点是一定要注意的。定期的用软布沾上蒸馏水进行铜的擦拭也算很重要的,同时我们也可以再蒸馏水中加入一些温和的肥皂进行污垢的清洗,对于一些无法擦到的角落我们则可以使用软毛刷进行处理,这样就能很好的对铜雕进行清理及保护了。
First, a small amount of coconut oil should be poured onto a clean soft cloth and wiped gently, which is helpful to the maintenance of the copper carving itself. The reason why coconut oil is used is that the substance contained in coconut oil itself will not cause the fading of copper, which must be noted. It is also important to wipe copper regularly with soft cloth dipped in distilled water. At the same time, we can add some mild soap to the distilled water to clean the dirt. For some corners which can not be wiped, we can use soft brush to clean and protect the copper carving.