Laser cleaning of weld spots is an efficient and environmentally friendly cleaning technology. It irradiates the surface of the workpiece to be processed with a laser beam, and uses the high temperature generated by the concentrated laser energy to instantly peel off the dirt from the substrate and restore the original appearance of the material. This cleaning method is physical and mechanical, and will not produce new substances and pollution. It has the following advantages:
1. Non-contact cleaning: Laser cleaning has no contact with the surface of the material, and has a wide range of applicability. It can be used to clean components of various shapes, including complex curved surfaces, solving the problem that mechanical cleaning is difficult to deal with.
2. No damage to the substrate: After the laser cleaning technology cleans the surface contaminants, it does not damage the substrate or product, solving the problem that mechanical grinding easily causes damage to the surface of the workpiece.
3. High efficiency and environmental protection: Laser cleaning technology is efficient, energy-saving and environmentally friendly.
Compared with chemical cleaning, the problems of damaged substrates, limited component size, long time and low efficiency, and chemical reagents that are harmful to the human body and the environment can be effectively solved.
4. Good cleaning effect: Laser cleaning can remove impurities such as oxides, improve metal corrosion resistance, optimize the surface conditions before welding, stabilize the interface of the base fusion line, and do not require media or chemical reagents. The operation is dry and clean.
5. Automated operation: Laser cleaning can be automated, with low equipment operating costs. With the help of a robotic arm, remote, flexible and precise cleaning can be achieved.
6. Wide range of pollutant removal and applicable substrates: Laser cleaning technology can remove a variety of pollutants and is applicable to a variety of substrates, including metals, optical glass, composite materials, etc.
Laser cleaning technology has broad application prospects in industrial manufacturing, production and maintenance, and is expected to partially or completely replace traditional cleaning methods and become the most promising green cleaning technology in the 21st century. Laser cleaning can improve welding quality and efficiency, eliminate welding defects such as holes and gray spots in seamless rails, and improve the stability and safety of high-speed railway operation. In addition, laser cleaning technology can also be used for surface cleaning in industries such as aviation, shipbuilding, and molds, providing a green and pollution-free cleaning solution.
