Plastic Bearing Seat Size Table PA200 SeriesWhat are the characteristics of technology?
Accurate control of heat input can be achieved, with high bearing seat connection speed, fast cooling speed, low thermal distortion, and good controllability of thickness, composition, and dilution rate. A dense and high-performance stacked fusion bearing seat layer can be obtained, which can save high-performance materials. In addition, it is possible to cover high-performance (wear-resistant, high-temperature resistant, corrosion-resistant, etc.) pile bearing seat layers on ordinary materials, and laser processing is non-contact processing with no processing inertia. Once the bearing seat parameters are determined, the quality of the bearing seat is easy to ensure, and the reliability of the bearing seat is high, making it easy to achieve automation and in line with the development trend of modern production Economically and in terms of coating quality, it is also superior to traditional pile bearing seats and thermal spraying processes. Nickel based high-temperature bearing seat is a widely used material in aircraft engines. As the content of Al and Ti increases, the volume percentage of Ni3 (Al, Ti) secondary strengthening phase increases, and the high-temperature strength of the bearing seat increases. Modern high-performance aircraft engine turbine blades, guides, and other hot end components are made of high Al+Ti nickel based high-temperature bearing seats, such as Rene125, DZ22, DZ125, ЖС 6 У, K24, and K418. These high-temperature bearing seat components are manufactured using excellent high-temperature resistant bearing seat materials and advanced casting molding processes, resulting in high production costs and expensive construction costs. However, these components are often subjected to high temperature, high pressure, and corrosive gases during service, resulting in various early damages that seriously affect the safety and performance of the engine. It is highly attractive to refurbish and reuse components that were scrapped due to early damage. However, high Al+Ti nickel based high-temperature bearing seats have a high sensitivity to thermal cracking due to the presence of a large amount of Ni3 (Al, Ti) phase. During the process of connecting the bearing seat and the bearing seat, solidification cracks, grain boundary liquefaction cracks, and strain aging cracks are prone to occur, which poses great difficulties for melting the bearing seat.