Gas turbine is an advanced and complex complete set of power machinery equipment, which is a typical high-tech-intensive product. As a carrier of high technology, gas turbine represents the comprehensive level of development of multi-theoretical disciplines and multi-engineering fields, and is a leading technology in the 21st century. The development of the gas turbine industry integrating new technologies, new materials and new processes is one of the important symbols of the country's high-tech level and scientific and technological strength, and has a very prominent strategic position.

Due to various reasons, our country gas turbine Compared with the international advanced level, there is still a big gap, and a real industry has not yet formed. The backward state of power in many fields has become a "bottleneck" restricting the development of the national economy. Its technology is only controlled by a few developed countries in the world (the United States, Germany, Japan, etc.), and advanced gas turbines are still restricted in Western countries. Export. According to a 21st Century Business Herald reporter from an internal survey of natural gas power generation commissioned by the National Energy Administration, "the foreign technology monopoly of natural gas generators is difficult to solve in the short term, even for more than ten years." The consequence must be a high price, which will be borne not only by power plants in China, but also by the entire population through electricity bills.

In recent years, an emerging technology, remanufacturing technology, has emerged internationally. Different from previous repair technologies, remanufacturing technology is an advanced repair technology with a new concept. It integrates advanced high-energy beam technology, advanced numerical control and computer technology, CAD/CAM technology, advanced material technology, and photoelectric detection and control technology. Restore damaged parts to their original or near-shape dimensions, and to perform at or above the level of the original substrate. As a result, a new advanced manufacturing technology integrating light, machine, electricity, computer, automation and material has been formed.

Laser remanufacturing technology is a new concept of advanced repair technology, which integrates advanced Laser Cladding The integration of processing technology, laser cladding material technology and other technologies can not only restore the dimensions of damaged parts, but also make their performance reach or even exceed the level of new products. It is a new development direction for major engineering equipment repairs. , has also been used in many important applications. For example, the British P.R Aero Engine Company uses it for the repair of turbine engine blades, and the US Navy laboratory uses it to repair ship propeller blades. The domestic application of this technology has also made great progress in recent years: Tianjin University of Technology has used this technology in the repair of metallurgical rolls and wire drawing rolls, the repair of oil production pump bodies and spindles in the petroleum industry, and the large diesel engine crankshafts in the railway and petrochemical industries. The repairs have received good results. In fact, there are still a large number of complex and valuable equipment in production that require 3D laser remanufacturing technology, especially large-scale equipment that cannot be moved needs to solve the problem of on-site repair. It is foreseeable that with the development and improvement of this technology, it will play a huge role in economic construction and national defense construction.