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朱明，石坤，吴斌，等.泥塑文物表面有机污物的激光去除与损伤研究［J］.电焊机，2022，52（4）：58-63.
ZHU Ming, SHI Kun, WU Bin, et al.Removal and Damage of Organic Contaminants on the Surface of Clay Sculpture Relics by Laser[J].Electric Welding Machine, 2022, 52(4): 58-63.
为了实现泥塑文物表面鸟粪类有机污物的激光无损去除，搭建高速摄像光学滤光放大采集系统，进行不同激光能量密度下的泥塑文物表面有机污物层去除实验，采集激光作用到泥塑文物表面有机污物层的动态去除过程，并研究不同去除模式的能量阈值及对基材的损伤行为。结果表明：在不同的激光能量密度作用下，泥塑文物表面有机污物层会出现烧蚀效应和振动效应，烧蚀效应去除过程中出现燃烧现象并伴随大量白烟的产生，振动效应去除过程中会出现有机污物层开裂和颗粒状飞溅现象，有机污物层去除后基体主要损伤形式有灼烧损伤和凹坑损伤。
In order to realize the laser non-destructive removal of bird droppings on the surface of clay sculpture relics, a high-speed camera optical filter amplification acquisition system was built, the dynamic removal process of organic pollutants on the surface of clay sculpture relics by laser was collected, and the energy threshold of different removal modes and the damage behavior of the substrate were studied. The results show that: under the action of different laser energy densities, the organic dirt layer on the surface of clay sculpture relics will appear ablation effect and vibration effect, the combustion phenomenon will appear in the process of ablation effect removal, accompanied by a large number of white smoke, and the organic dirt layer cracking and granular splash phenomenon will appear in the process of vibration effect removal, the main damage forms of the substrate after removing the organic dirt layer are burning damage and pit damage.
激光清洗泥塑有机污物去除机理
laser cleaningclay sculptureorganic pollutantsremoval mode
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