海洋工程建造中应用激光除锈可行性研究  

Feasibility Study on Application of Laser Rust Removal in Offshore Engineering Construction

作　　者：赵光瑞 程国东[1] 王长军[1] 姜伟[1] 付正强[1] Zhao Guangrui;Cheng Guodong;Wang Changjun;Jiang Wei;Fu Zhengqiang(Offshore Oil Engineering(Qingdao)Co.,Ltd.,Qingdao,Shandong 266520,China)

机构地区：[1]海洋石油工程(青岛)有限公司,山东青岛266520

出　　处：《涂料工业》2022年第9期57-63,共7页Paint & Coatings Industry

摘　　要：为验证在海洋工程建造中应用激光除锈的可行性,采用单模脉冲光纤激光器对碳钢板进行激光除锈/除漆试验研究。通过采用大功率、长脉宽、高频率和高扫描速度等条件,实现激光除锈对金属基体的可控熔融重塑。结果表明:单模脉冲光纤激光器激发的高斯光斑能量分布特性是实现除漆/除锈效果的关键;实验首次在无惰性气体保护下实现微观形貌可控的>40μm的粗糙度,达到了海洋工程建造涂装要求的35~75μm表面粗糙度范围;SEM表征及EDS分析显示激光除锈/除漆后金属表面发生轻微氧化现象,表面状态、涂层性能测试合格,满足海洋工程建造涂装要求。In order to verify the feasibility of applying laser rust removal in offshore engineering construction,a single-mode pulsed fiber laser was used to conduct laser rust/paint removal experiments on carbon steel plates. By adopting the conditions of high power,long pulse width,high frequency and high scanning rate,controllable melting and reshaping of the metal matrix was realized by laser rust removal. The experimental results showed that the energy distribution characteristics of Gaussian spot excited by the single-mode pulsed fiber laser was the key to achieve the effect of paint/rust removal. For the first time,a roughness of >40 μm with controllable micro-morphology was achieved without the protection of inert gas,meeting the surface roughness requirement of 35~75 μm for offshore engineering construction.SEM and EDS analyses showed that the metal surface was slightly oxidized after laser rust removal/paint removal,and the surface condition and coating performance tests were qualified,reaching the coating requirements for offshore engineering construction.

关 键 词：海洋工程 激光除锈 粗糙度 脉冲光纤激光器 高斯光斑 

分 类 号：TQ639.1[化学工程—精细化工]