Abstract:
With the acceleration of the industrialization process, Circulating Fluidized Bed (CFB) boilers, as key energy conversion equipment, play an essential role in numerous industrial applications. However, the heat-absorbing surfaces of CFB boilers often suffer from wear and corrosion during long-term operation, which not only reduces operational efficiency but also shortens their service life. To address this challenge, laser surface strengthening technology, with its significant advantages, has gradually become an effective solution to enhance the performance of boiler heat-absorbing surfaces. A comprehensive evaluation of the effectiveness of laser surface strengthening technology in improving the wear and corrosion resistance of heat-absorbing surfaces of CFB boiler was conducted and deeply discusses its potential and challenges in industrial applications. First, the basic principles and key methods of laser surface strengthening technology are outlined, including laser quenching, laser remelting, laser alloying, laser shock peening, and laser cladding. These technologies can form coatings with high hardness and wear resistance on the material surface, thereby significantly extending the service life of boiler components and enhancing their reliability. Furthermore, the effects of these technologies in actual industrial applications was analyzed, confirming that laser surface strengthening technology can not only significantly improve the surface hardness and wear resistance of materials but also enhance the corrosion resistance by generating residual compressive stress layers. In addition, the technology also has the advantages of non-contact, strong controllability, and significant strengthening effects. Despite this, the promotion of laser surface strengthening technology still faces some challenges, including precise control of process parameters, cost control, and the complexity of the technology. In response to these challenges, future research will focus on technology optimization, including the development of high-precision automated control systems, research on new types of alloy powders and additives, and the exploration of more economical and efficient laser equipment and technical solutions. The article also discusses the adaptability of laser surface strengthening technology in the industrial environment and its potential for innovative applications, providing a new perspective for academic exchanges and looking forward to the future development trend, pointing out the direction of research. With the continuous advancement of technology and the reduction of costs, it is expected that laser surface strengthening technology will gain wider application in the industrial field, which is of great significance for improving energy conversion efficiency and promoting environmental protection. In summary, laser surface strengthening technology provides an effective strategy for the improvement of CFB boiler heat-absorbing surfaces, is expected to play a more critical role in future industrial applications, and will make a positive contribution to the efficient use of energy and the sustainable development of the environment.