摘要
山东济南魏家庄遗址出土铁质文物中含有大量有害氯离子,严重威胁着文物的安全。因此,脱盐就成为该批铁器保护的重点,是阻止铁器继续腐蚀的重要保证。在经一系列实验工作后,该批铁器的脱盐溶液采用0.005mol/L NaOH溶液,对于仅为铁质的容器类铁器采用直接浸泡法,同时结合冷热交替和超声波法;对于带有鞘的兵器类铁器采用2%Primal AC33加固后再进行脱盐;对于带有漆皮痕迹的铁器也试用了纸浆脱盐法。铁器经脱盐后氯离子含量大大降低,脱盐取得了很好的效果。
Iron relics excavated from the Weijiazhuang site contained high content of harmful chlorine salts, which threatened the safety of these cultural relics. After a series of experiments, 0. 005 mol/L NaOH solution was select- ed for desalination. Direct immersion combined with alternating cooling and heating and ultrasonic treatment were used for container - shaped iron relics. A 2% Primal AC33 solution was used for reinforcing iron weapons with sheath before desalination, and wood pulp was also used to remove salt in iron relics having traces of paint. As a result, the chlorine content of the iron was greatly reduced after desalination. The results were very satisfactory.
出处
《文物保护与考古科学》
北大核心
2017年第1期78-85,共8页
Sciences of Conservation and Archaeology
关键词
铁质文物
脱盐
氯离子
Iron relics
Desalting
Chlorine ion
