激光清洗原理及应用

摘要本文对激光清洗技术的几种常用清洗方法、清洗机理、影响清洗效果的主要因素、以及目前的主要应用方向等进行了比较详细、全面的介绍，并将激光清洗技术与传统清洗方法进行比较，指出了激光清洗的优势所在。之后，本文重点选取了激光脱漆这一应用方向，对其进行了更加具体、深入的调研。内容包括：激光器的选取、如何确定脱漆用的激光脉冲的能量密度、能量密度对激光作用机理的影响、确定合适的脉冲宽度、激光扫描速度及扫描轨道搭接率的选择、采用液膜法提高脱漆效率、检验脱漆对工件力学性质的影响、如何对脱漆过程进行实时监测、实际应用中的激光脱漆机的组成。对于激光脱漆的讨论，都是面向整个激光清洗领域，而不是仅限于激光脱漆这一应用。在对激光清洗的其他应用进行研究时，也要按同样的研究思路、角度、方法进行。67456

毕业论文关键词激光清洗激光脱漆

毕业设计说明书（论文）外文摘要

Title The principle and application of laser cleaning

Abstract

In this paper, the methods, principles and major effecting factors for various kinds of laser cleaning technology and their major applications are introduced comprehensively. Besides, comparison between laser cleaning and traditional cleaning methods are made to indicate the superiority of laser cleaning. After that, the paper selects laser stripping as the application direction to conduct more concentrate and deeper research. The main content includes : The selection of laser, how to choose the energy density of laser pulse in laser stripping, the effect of energy density to laser mechanism, how to choose the proper pulse width, how to choose laser scanning speed and rate of scanning orbital overlap, the usage of liquid membrane to improve stripping efficiency, testing of the effect of stripping to mechanical properties of workpieces, how to real-time monitor the stripping process and the composition of laser stripping machine in real applications. The discussion of laser stripping is oriented to the whole laser cleaning area instead of laser stripping only. The same perspective and method can be used in study of other laser cleaning applications.

Keywords laser cleaning laser paint stripping

1 绪论 5

1.1 研究背景 5

1.2 激光清洗的机理5

2 激光清洗的原理6

2.1 激光清洗的机理6

2.2 激光清洗的方法 7

2.3 激光清洗与传统清洗方式的对比8

2.4 影响激光清洗效果的因素9

3 激光清洗技术用于脱漆的具体应用 10

3.1适合做激光脱漆的激光器 10

3.2 激光脱漆效率与能量密度的关系 12

3.3 能量密度与工件表面温度分布及激光作用机理的关系14

3.4 脉冲宽度对脱漆效果的影响18

3.5 确定合适的扫描速度和扫描轨道搭接率19

3.6 液膜对脱漆效率的影响21

3.7 激光脱漆对工件力学性质的影响21

3.8 激光脱漆过程中的实时监测28

3.9 实现激光脱漆的设备33结论 34

致谢 35

参考文献 36

1 绪论

1.1 研究背景

工业生产中的很多领域很多环节都离不开清洗技术，传统的清洗技术包括机械清洗、化学清洗和超声波清洗。这些传统清洗技术，越来越不能满足现代工业的要求，在清洁度、效率、自动化控制、清洗对象和环保方面表现出明显的不足。激光清洗原理及应用:http://www.751com.cn/wuli/lunwen_75660.html