As a world-recognized manufacturing powerhouse, China has made great strides on the road to industrialization and made great achievements, but it has also caused serious environmental degradation and industrial pollution. In recent years, my country’s environmental protection regulations have become more and more stringent, resulting in some enterprises being shut down for rectification. The one-size-fits-all environmental storm has some impact on the economy, and changing the traditional polluting production model is the key. With the advancement of technology, people have gradually explored various technologies that are beneficial to environmental protection, and laser cleaning technology is one of them. Laser cleaning technology is a kind of workpiece surface cleaning technology that has been newly applied in the past ten years. With its own advantages and irreplaceability, it is gradually replacing traditional cleaning processes in many fields.
Traditional cleaning methods include mechanical cleaning, chemical cleaning and ultrasonic cleaning. Mechanical cleaning uses scraping, wiping, brushing, sandblasting and other mechanical means to remove surface dirt; wet chemical cleaning uses organic cleaning agents. Spray, shower, immerse or high-frequency vibration measures to remove surface attachments; ultrasonic cleaning method is to put the treated parts into the cleaning agent, and use the vibration effect generated by ultrasonic waves to remove dirt. At present, these three cleaning methods still dominate the cleaning market in my country, but they all produce pollutants to varying degrees, and their application is greatly restricted under the requirements of environmental protection and high precision.
Laser cleaning technology refers to the use of high-energy and high-frequency laser beams to irradiate the surface of the workpiece, so that the dirt, rust or coating on the surface evaporates or peels off instantly, and effectively removes the surface attachment or surface coating of the cleaning object at high speed, so as to achieve clean laser cleaning. crafting process. Lasers are characterized by high directivity, monochromaticity, high coherence and high brightness. Through the focusing of the lens and the Q switch, the energy can be concentrated into a small space and time range.
Advantages of laser cleaning:
1. Environmental advantages
Laser cleaning is a “green” cleaning method. It does not need to use any chemicals and cleaning fluids. The waste materials cleaned are basically solid powders, which are small in size, easy to store, recyclable, and have no photochemical reaction and no pollution. . It can easily solve the environmental pollution problem caused by chemical cleaning. Often an exhaust fan can solve the problem of waste generated by cleaning.
2. Effect advantage
The traditional cleaning method is often contact cleaning, which has mechanical force on the surface of the cleaned object, damages the surface of the object or the cleaning medium adheres to the surface of the cleaned object, which cannot be removed, resulting in secondary pollution. Laser cleaning is non-abrasive and non-toxic. Contact, non-thermal effect will not damage the substrate, so that these problems are easily solved.
3. Control advantage
The laser can be transmitted through the optical fiber, cooperate with the manipulator and the robot, conveniently realize the long-distance operation, and can clean the parts that are difficult to reach by the traditional method, which can ensure the safety of personnel in some dangerous places.
4. Convenient advantages
Laser cleaning can remove various types of pollutants on the surface of various materials, achieving a cleanliness that cannot be achieved by conventional cleaning. Moreover, the pollutants on the surface of the material can be selectively cleaned without damaging the surface of the material.
5. Cost advantage
The laser cleaning speed is fast, the efficiency is high, and time is saved; although the one-time investment in the early stage of purchasing a laser cleaning system is high, the cleaning system can be used stably for a long time, with low operating costs, and more importantly, it can be easily automated.
Post time: Mar-04-2023
