Với hơn hơn nữa phát triển của tốc độ cao đường sắt công nghệ và tăng địa lý phạm vi bảo hiểm% 2c the hàng không công nghiệp là đối mặt ngày càng tăng nghiêm trọng cạnh tranh áp lực. Đặc biệt in the bối cảnh of the times times when aviation business has been rampant impact by the rampant new crown epidemic and environmental disasters are frequent due to global warming, how to reduce flight cost and greenhouse gas emissions is an issue that the hàng không công nghiệp phải xem xét. Trên trên cùng of rằng, tuy nhiên% 2c hàng không an toàn an toàn là hàng đầu ưu tiên. The cao hiệu suất, mệt mỏi kháng kháng và xói mòn kháng của máy bay bộ phận là cơ bản yêu cầu đối với điều hướng an toàn. ứng dụng của laser công nghệ cung cấp a tăng cường đến hàng không an toàn% chi phí giảm và carbon phát thải giảm.
The aircraft maintenance process requires regular repainting of the airframe surface. Before painting, the original paint must be removed from the fuselage surface. Repairing localized minor cracks and defects. Traditional aircraft paint removal methods include sandblasting, chemical cleaning, hand grinding and polishing. One of the sandblasting (shot blasting, dry ice) method (about 20 percent of the total amount of cleaning) for the contact cleaning, easy to cause damage to the workpiece, affecting the mechanical properties of the machinery, pollution of the environment. Chemical methods (about 75 percent of the total amount of cleaning) most of the benzene solvent immersion, scraping process to remove paint. Solvent toxicity, non-degradation, can not be dealt with, pollution of the environment, occupational health hazards; cleaning time cycle is long, there is corrosion and secondary pollution of parts. Manual grinding and polishing methods (about 5 percent of the total amount of cleaning) for contact cleaning, damage to the surface of the workpiece, affecting mechanical properties. Labor intensity, cleaning quality is not controlled.
The use of laser cleaning machine instead of traditional cleaning process to remove the aging aircraft paint is an optimal choice. Laser paint for non-contact cleaning, laser energy is absorbed by the paint layer, is reflected by the substrate, the mechanical properties of the parts are not affected, corrosion resistance, laser cleaning does not damage the substrate; laser paint does not use chemicals, no pollutant emissions, solid waste is easy to collect and handle, no secondary pollution of the parts, green; laser cleaning equipment is easy to automate and intelligent cleaning, cleaning process can be The laser cleaning equipment is easy to implement automated intelligent cleaning, cleaning process can be copied, repeated implementation, high cleaning quality, good consistency; laser paint removal process without consumables, low equipment operating costs. Laser stress-free and non-destructive green cleaning advantages for aircraft maintenance provides safety and quality assurance.
So far, the countries on the surface of aviation equipment laser paint removal has carried out a variety of attempts. Following the development track of laser light source, automatic and semi-automatic online and offline laser cleaning equipment using CO2 laser light source, Nd:YAG laser light source and fiber laser light source have been developed, specializing in the application of paint removal on the surface of fixed-wing and rotary-wing aircraft. Different lasers produce different wavelengths of laser output, offering the possibility of choosing the right laser light source for a subdivided range of paint removal applications.
In recent years, some domestic aviation professional research institutes and universities have also carried out some research on aircraft laser paint removal. From the application of laser cleaning technology, the aviation components for welding, bonding before pretreatment, post-welding treatment, aircraft maintenance to remove dirt, oil and grease removal and other aspects of the application is relatively mature. The removal of functional coatings on the fuselage test and effect analysis is also in progress. Due to the special characteristics of the aviation industry, a process to be applied in production in addition to the reliable technical support, harsh weather environment test, but also through the strict approval process, through the gradual implementation of the process from point to point.
