高重复频率脉冲激光去除低热导率涂漆
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摘要
基于烧蚀气化材料去除机理,利用高重复频率脉冲激光对低热导率树脂基涂漆的定量去除进行理论及实验研究。研究了二维振镜系统激光清洗扫描方式的选取,以及脉冲激光作用于材料表面光斑的分布特性。对材料表面的温度变化进行理论仿真后发现,脉冲间隔对材料温度变化的影响较小。进行了高重复频率脉冲激光烧蚀气化去除低热导率涂漆的实验,结果表明:作用于涂漆表面的脉冲数与烧蚀气化去除深度线性相关,从而建立了二者之间的一维线性关系方程。
Based on the mechanism of ablation,we study the quantitative removal of low thermal conductivity resinbased paint with high repetition rate pulse laser.The selection of scanning mode of a two-dimensional galvanometer system is studied,as well as the distribution characteristics of laser spots on material surface.The temperature change of material surface is simulated and it is found that the pulse interval has little influence on the material temperature change.The experiments of high repetition rate pulse laser ablating low thermal conductivity paint are carried out.The relation between the pulse number acting on paint surface and the ablation depth is linear,and a linear equation is established.
Based on the mechanism of ablation,we study the quantitative removal of low thermal conductivity resinbased paint with high repetition rate pulse laser.The selection of scanning mode of a two-dimensional galvanometer system is studied,as well as the distribution characteristics of laser spots on material surface.The temperature change of material surface is simulated and it is found that the pulse interval has little influence on the material temperature change.The experiments of high repetition rate pulse laser ablating low thermal conductivity paint are carried out.The relation between the pulse number acting on paint surface and the ablation depth is linear,and a linear equation is established.
引文
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[3]Schawlow A L.Lasers[J].Science,1965,149(3679):13-22.
[4]Bo Y,Geng A C,Bi Y,et al.High average power Q-switched quasi-continue-wave Nd…YAG laser[J].Acta Physica Sinica,2006,55(3):1171-1175.薄勇,耿爱丛,毕勇,等.高平均功率调Q准连续Nd…YAG激光器[J].物理学报,2006,55(3):1171-1175.
[5]Furuta K,Kojima T,Fujikawa S,et al.Diodepumped1kWQ-switched Nd…YAG rod laser with high peak power and high beam quality[J].Applied Optics,2005,44(19):4119-4122.
[6]Kim D,Oh B,Jang D,et al.Experimental and theoretical analysis of the laser shock cleaning process for nanoscale particle removal[J].Applied Surface Science,2007,253(19):8322-8327.
[7]Qi Y,Ye Y Y,Wang H J,et al.Mechanisms of laser cleaning of contamination on surface of stonework[J].Chinese Journal of Lasers,2015,42(6):0603001.齐扬,叶亚云,王海军,等.激光清除石质文物表面污染物的作用机制[J].中国激光,2015,42(6):0603001.
[8]Wang Z M,Zeng X Y,Huang W L.Parameters and mechanisms of laser cleaning rubber layer on a tyre mould[J].Chinese Journal of Lasers,2000,27(11):1050-1054.王泽敏,曾晓雁,黄维玲.激光清洗轮胎模具表面橡胶层的机理与工艺研究[J].中国激光,2000,27(11):1050-1054.
[9]Zheng G,Tan R Q,Zhen Y J,et al.Experimental study on TEA CO2laser paint stripping[J].Laser Journal,2005,26(5):82-84.郑光,谭荣清,郑义军,等.TEA CO2激光脱漆实验研究[J].激光杂志,2005,26(5):82-84.
[10]Shi S D,Du P,Li W,et al.Research on paint removal with 1064nm quasi-continuous-wave laser[J].Chinese Journal of Lasers,2012,39(9):0903001.施曙东,杜鹏,李伟,等.1064nm准连续激光除漆研究[J].中国激光,2012,39(9):0903001.
[11]Brygo F,Semerok A,Oltra R,et al.Laser heating and ablation at high repetition rate in thermal confinement regime[J].Applied Surface Science,2006,252(23):8314-8318.
[12]Zhang H,Liu W W,Dong Y Z,et al.Experimental and mechanism research on paint removal with low frequency YAG pulsed laser[J].Laser&Optoelectronics Progress,2013,50(12):121401.章恒,刘伟嵬,董亚洲,等.低频YAG脉冲激光除漆机理和实验研究[J].激光与光电子学展,2013,50(12):121401.
[13]Song F,Zou W F,Tian B,et al.Model of onedimensional thermal stress applied in paint removal by Q-switched short pulse laser[J].Chinese Journal of Lasers,2007,34(11):1577-1581.宋峰,邹万芳,田彬,等.一维热应力模型在调Q短脉冲激光除漆中的应用[J].中国激光,2007,34(11):1577-1581.
[14]Shi S D.Researches on theoretical model,numerical simulation and application of painting removal by laser cleaning[D].Tianjin:Nankai University,2012:55-70.施曙东.脉冲激光除漆的理论模型数值计算与应用研究[D].天津:南开大学,2012:55-70.
[15]Reinhart P.Tailored light 2:laser application technology[M].Berlin,Heidelberg:SpringerVerlag,2011.
[16]Jiang M Q,Wei Y P,Wilde G,et al.Explosive boiling of a metallic glass superheated by nanosecond pulse laser ablation[J].Applied Physics Letters,2015,106(2):021904.